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* [PATCH v6 00/16] Revert h8300 archtecture support
@ 2015-03-09  8:46 Yoshinori Sato
  2015-03-09  8:46 ` [PATCH v6 01/16] h8300: Assembly headers Yoshinori Sato
                   ` (16 more replies)
  0 siblings, 17 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:46 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Hello.

I rewriting h8300 support.

Changes for v6
- rebase to v4.0-rc3
- remove unused headers
- optimized atomic operation
- System.map cleanup

Changes for v5
- Signal handling fix
- LD script cleanup

Changes for v4
- Remove signal mapping
- Organize Kconfig
- Coding style fix

Changes for v3
- Fix clone
- Add dma functions
- Add missing library
- Fix various errors

Changes for v2
- Use Common Clock Framework
- Use common unistd.h
- Use common ptrace function
- clocksource driver move to drivers/clocksource
- some cleanup

Changes for latest relase (v3.12)
- standard ELF toolchain (h8300-linux)
- use common driver support
- exception handling fix
- too many cleanup

git repository
git://git.sourceforge.jp/gitroot/uclinux-h8/linux.git h8300

Yoshinori Sato (16):
  h8300: Assembly headers.
  h8300: UAPI headers
  h8300: Exception and Interrupt handling
  h8300: kernel booting
  h8300: Process and signal
  h8300: CPU depend helpers
  h8300: miscellaneous functions
  h8300: Memory management
  h8300: library functions
  h8300: Build scripts
  h8300: clock driver
  h8300: clocksource
  h8300: configs
  serial: Add h8300
  Add ELF machine
  mksysmap: Add h8300 local symbol pattern

 arch/h8300/Kconfig                         |  73 +++++
 arch/h8300/Kconfig.cpu                     | 111 ++++++++
 arch/h8300/Makefile                        |  45 ++++
 arch/h8300/boot/Makefile                   |  26 ++
 arch/h8300/boot/compressed/Makefile        |  37 +++
 arch/h8300/boot/compressed/head.S          |  48 ++++
 arch/h8300/boot/compressed/misc.c          |  74 ++++++
 arch/h8300/boot/compressed/vmlinux.lds     |  32 +++
 arch/h8300/boot/compressed/vmlinux.scr     |   9 +
 arch/h8300/configs/h8300h-sim_defconfig    |  53 ++++
 arch/h8300/configs/h8s-sim_defconfig       |  53 ++++
 arch/h8300/include/asm/Kbuild              |  66 +++++
 arch/h8300/include/asm/asm-offsets.h       |   1 +
 arch/h8300/include/asm/atomic.h            | 159 +++++++++++
 arch/h8300/include/asm/bitops.h            | 185 +++++++++++++
 arch/h8300/include/asm/bootparams.h        |  17 ++
 arch/h8300/include/asm/bug.h               |  12 +
 arch/h8300/include/asm/cache.h             |  11 +
 arch/h8300/include/asm/checksum.h          | 102 +++++++
 arch/h8300/include/asm/cmpxchg.h           |  65 +++++
 arch/h8300/include/asm/delay.h             |  38 +++
 arch/h8300/include/asm/device.h            |   6 +
 arch/h8300/include/asm/dma-mapping.h       | 124 +++++++++
 arch/h8300/include/asm/elf.h               | 101 +++++++
 arch/h8300/include/asm/emergency-restart.h |   6 +
 arch/h8300/include/asm/flat.h              |  27 ++
 arch/h8300/include/asm/io.h                | 314 ++++++++++++++++++++++
 arch/h8300/include/asm/irq.h               |  26 ++
 arch/h8300/include/asm/irqflags.h          |  96 +++++++
 arch/h8300/include/asm/mc146818rtc.h       |   9 +
 arch/h8300/include/asm/mutex.h             |   9 +
 arch/h8300/include/asm/page.h              |  18 ++
 arch/h8300/include/asm/page_offset.h       |   2 +
 arch/h8300/include/asm/pci.h               |  19 ++
 arch/h8300/include/asm/pgtable.h           |  49 ++++
 arch/h8300/include/asm/processor.h         | 144 ++++++++++
 arch/h8300/include/asm/ptrace.h            |  36 +++
 arch/h8300/include/asm/segment.h           |  49 ++++
 arch/h8300/include/asm/sh_bios.h           |   4 +
 arch/h8300/include/asm/signal.h            |  22 ++
 arch/h8300/include/asm/smp.h               |   1 +
 arch/h8300/include/asm/spinlock.h          |   6 +
 arch/h8300/include/asm/string.h            |  17 ++
 arch/h8300/include/asm/switch_to.h         |  51 ++++
 arch/h8300/include/asm/syscall.h           |  56 ++++
 arch/h8300/include/asm/thread_info.h       | 119 +++++++++
 arch/h8300/include/asm/timer.h             |  31 +++
 arch/h8300/include/asm/tlb.h               |   8 +
 arch/h8300/include/asm/topology.h          |   6 +
 arch/h8300/include/asm/traps.h             |  41 +++
 arch/h8300/include/asm/uaccess.h           | 136 ++++++++++
 arch/h8300/include/asm/unaligned.h         |  11 +
 arch/h8300/include/asm/user.h              |  74 ++++++
 arch/h8300/include/uapi/asm/Kbuild         |  29 ++
 arch/h8300/include/uapi/asm/auxvec.h       |   4 +
 arch/h8300/include/uapi/asm/byteorder.h    |   6 +
 arch/h8300/include/uapi/asm/ptrace.h       |  42 +++
 arch/h8300/include/uapi/asm/sigcontext.h   |  18 ++
 arch/h8300/include/uapi/asm/signal.h       | 115 ++++++++
 arch/h8300/include/uapi/asm/swab.h         |   1 +
 arch/h8300/include/uapi/asm/unistd.h       |   3 +
 arch/h8300/kernel/Makefile                 |  16 ++
 arch/h8300/kernel/asm-offsets.c            |  60 +++++
 arch/h8300/kernel/cpu/Makefile             |   4 +
 arch/h8300/kernel/cpu/h83069/Makefile      |   1 +
 arch/h8300/kernel/cpu/h83069/setup.c       | 202 ++++++++++++++
 arch/h8300/kernel/cpu/h8s2678/Makefile     |   1 +
 arch/h8300/kernel/cpu/h8s2678/setup.c      | 161 +++++++++++
 arch/h8300/kernel/cpu/irq_h.c              |  62 +++++
 arch/h8300/kernel/cpu/irq_s.c              |  70 +++++
 arch/h8300/kernel/cpu/ptrace_h.c           | 256 ++++++++++++++++++
 arch/h8300/kernel/cpu/ptrace_s.c           |  44 +++
 arch/h8300/kernel/dma.c                    |  95 +++++++
 arch/h8300/kernel/entry.S                  | 414 +++++++++++++++++++++++++++++
 arch/h8300/kernel/h8300_ksyms.c            |  34 +++
 arch/h8300/kernel/head_ram.S               |  60 +++++
 arch/h8300/kernel/head_rom.S               | 108 ++++++++
 arch/h8300/kernel/irq.c                    | 100 +++++++
 arch/h8300/kernel/module.c                 |  70 +++++
 arch/h8300/kernel/process.c                | 171 ++++++++++++
 arch/h8300/kernel/ptrace.c                 | 203 ++++++++++++++
 arch/h8300/kernel/setup.c                  | 174 ++++++++++++
 arch/h8300/kernel/signal.c                 | 289 ++++++++++++++++++++
 arch/h8300/kernel/sim-console.c            |  79 ++++++
 arch/h8300/kernel/syscalls.c               |  14 +
 arch/h8300/kernel/traps.c                  | 161 +++++++++++
 arch/h8300/kernel/vmlinux.lds.S            |  67 +++++
 arch/h8300/lib/Makefile                    |   7 +
 arch/h8300/lib/abs.S                       |  20 ++
 arch/h8300/lib/ashldi3.c                   |  24 ++
 arch/h8300/lib/ashrdi3.c                   |  24 ++
 arch/h8300/lib/checksum.c                  | 167 ++++++++++++
 arch/h8300/lib/libgcc.h                    |  77 ++++++
 arch/h8300/lib/lshrdi3.c                   |  23 ++
 arch/h8300/lib/memcpy.S                    |  85 ++++++
 arch/h8300/lib/memset.S                    |  69 +++++
 arch/h8300/lib/moddivsi3.S                 |  72 +++++
 arch/h8300/lib/modsi3.S                    |  72 +++++
 arch/h8300/lib/muldi3.c                    |  44 +++
 arch/h8300/lib/mulsi3.S                    |  38 +++
 arch/h8300/lib/strncpy.S                   |  34 +++
 arch/h8300/lib/ucmpdi2.c                   |  17 ++
 arch/h8300/lib/udivsi3.S                   |  76 ++++++
 arch/h8300/mm/Makefile                     |   5 +
 arch/h8300/mm/fault.c                      |  57 ++++
 arch/h8300/mm/init.c                       | 133 +++++++++
 arch/h8300/mm/kmap.c                       |  61 +++++
 arch/h8300/mm/memory.c                     |  53 ++++
 drivers/clk/Makefile                       |   1 +
 drivers/clk/h8300/Makefile                 |   2 +
 drivers/clk/h8300/clk-h83069.c             |  80 ++++++
 drivers/clk/h8300/clk-h8s2678.c            | 171 ++++++++++++
 drivers/clocksource/Kconfig                |   6 +
 drivers/clocksource/Makefile               |   3 +
 drivers/clocksource/h8300_timer16.c        | 332 +++++++++++++++++++++++
 drivers/clocksource/h8300_timer8.c         | 398 +++++++++++++++++++++++++++
 drivers/clocksource/h8300_tpu.c            | 203 ++++++++++++++
 drivers/tty/serial/Kconfig                 |   2 +-
 include/linux/clk-provider.h               |  12 +
 include/uapi/linux/elf-em.h                |   1 +
 scripts/mksysmap                           |   2 +-
 121 files changed, 8338 insertions(+), 2 deletions(-)
 create mode 100644 arch/h8300/Kconfig
 create mode 100644 arch/h8300/Kconfig.cpu
 create mode 100644 arch/h8300/Makefile
 create mode 100644 arch/h8300/boot/Makefile
 create mode 100644 arch/h8300/boot/compressed/Makefile
 create mode 100644 arch/h8300/boot/compressed/head.S
 create mode 100644 arch/h8300/boot/compressed/misc.c
 create mode 100644 arch/h8300/boot/compressed/vmlinux.lds
 create mode 100644 arch/h8300/boot/compressed/vmlinux.scr
 create mode 100644 arch/h8300/configs/h8300h-sim_defconfig
 create mode 100644 arch/h8300/configs/h8s-sim_defconfig
 create mode 100644 arch/h8300/include/asm/Kbuild
 create mode 100644 arch/h8300/include/asm/asm-offsets.h
 create mode 100644 arch/h8300/include/asm/atomic.h
 create mode 100644 arch/h8300/include/asm/bitops.h
 create mode 100644 arch/h8300/include/asm/bootparams.h
 create mode 100644 arch/h8300/include/asm/bug.h
 create mode 100644 arch/h8300/include/asm/cache.h
 create mode 100644 arch/h8300/include/asm/checksum.h
 create mode 100644 arch/h8300/include/asm/cmpxchg.h
 create mode 100644 arch/h8300/include/asm/delay.h
 create mode 100644 arch/h8300/include/asm/device.h
 create mode 100644 arch/h8300/include/asm/dma-mapping.h
 create mode 100644 arch/h8300/include/asm/elf.h
 create mode 100644 arch/h8300/include/asm/emergency-restart.h
 create mode 100644 arch/h8300/include/asm/flat.h
 create mode 100644 arch/h8300/include/asm/io.h
 create mode 100644 arch/h8300/include/asm/irq.h
 create mode 100644 arch/h8300/include/asm/irqflags.h
 create mode 100644 arch/h8300/include/asm/mc146818rtc.h
 create mode 100644 arch/h8300/include/asm/mutex.h
 create mode 100644 arch/h8300/include/asm/page.h
 create mode 100644 arch/h8300/include/asm/page_offset.h
 create mode 100644 arch/h8300/include/asm/pci.h
 create mode 100644 arch/h8300/include/asm/pgtable.h
 create mode 100644 arch/h8300/include/asm/processor.h
 create mode 100644 arch/h8300/include/asm/ptrace.h
 create mode 100644 arch/h8300/include/asm/segment.h
 create mode 100644 arch/h8300/include/asm/sh_bios.h
 create mode 100644 arch/h8300/include/asm/signal.h
 create mode 100644 arch/h8300/include/asm/smp.h
 create mode 100644 arch/h8300/include/asm/spinlock.h
 create mode 100644 arch/h8300/include/asm/string.h
 create mode 100644 arch/h8300/include/asm/switch_to.h
 create mode 100644 arch/h8300/include/asm/syscall.h
 create mode 100644 arch/h8300/include/asm/thread_info.h
 create mode 100644 arch/h8300/include/asm/timer.h
 create mode 100644 arch/h8300/include/asm/tlb.h
 create mode 100644 arch/h8300/include/asm/topology.h
 create mode 100644 arch/h8300/include/asm/traps.h
 create mode 100644 arch/h8300/include/asm/uaccess.h
 create mode 100644 arch/h8300/include/asm/unaligned.h
 create mode 100644 arch/h8300/include/asm/user.h
 create mode 100644 arch/h8300/include/uapi/asm/Kbuild
 create mode 100644 arch/h8300/include/uapi/asm/auxvec.h
 create mode 100644 arch/h8300/include/uapi/asm/byteorder.h
 create mode 100644 arch/h8300/include/uapi/asm/ptrace.h
 create mode 100644 arch/h8300/include/uapi/asm/sigcontext.h
 create mode 100644 arch/h8300/include/uapi/asm/signal.h
 create mode 100644 arch/h8300/include/uapi/asm/swab.h
 create mode 100644 arch/h8300/include/uapi/asm/unistd.h
 create mode 100644 arch/h8300/kernel/Makefile
 create mode 100644 arch/h8300/kernel/asm-offsets.c
 create mode 100644 arch/h8300/kernel/cpu/Makefile
 create mode 100644 arch/h8300/kernel/cpu/h83069/Makefile
 create mode 100644 arch/h8300/kernel/cpu/h83069/setup.c
 create mode 100644 arch/h8300/kernel/cpu/h8s2678/Makefile
 create mode 100644 arch/h8300/kernel/cpu/h8s2678/setup.c
 create mode 100644 arch/h8300/kernel/cpu/irq_h.c
 create mode 100644 arch/h8300/kernel/cpu/irq_s.c
 create mode 100644 arch/h8300/kernel/cpu/ptrace_h.c
 create mode 100644 arch/h8300/kernel/cpu/ptrace_s.c
 create mode 100644 arch/h8300/kernel/dma.c
 create mode 100644 arch/h8300/kernel/entry.S
 create mode 100644 arch/h8300/kernel/h8300_ksyms.c
 create mode 100644 arch/h8300/kernel/head_ram.S
 create mode 100644 arch/h8300/kernel/head_rom.S
 create mode 100644 arch/h8300/kernel/irq.c
 create mode 100644 arch/h8300/kernel/module.c
 create mode 100644 arch/h8300/kernel/process.c
 create mode 100644 arch/h8300/kernel/ptrace.c
 create mode 100644 arch/h8300/kernel/setup.c
 create mode 100644 arch/h8300/kernel/signal.c
 create mode 100644 arch/h8300/kernel/sim-console.c
 create mode 100644 arch/h8300/kernel/syscalls.c
 create mode 100644 arch/h8300/kernel/traps.c
 create mode 100644 arch/h8300/kernel/vmlinux.lds.S
 create mode 100644 arch/h8300/lib/Makefile
 create mode 100644 arch/h8300/lib/abs.S
 create mode 100644 arch/h8300/lib/ashldi3.c
 create mode 100644 arch/h8300/lib/ashrdi3.c
 create mode 100644 arch/h8300/lib/checksum.c
 create mode 100644 arch/h8300/lib/libgcc.h
 create mode 100644 arch/h8300/lib/lshrdi3.c
 create mode 100644 arch/h8300/lib/memcpy.S
 create mode 100644 arch/h8300/lib/memset.S
 create mode 100644 arch/h8300/lib/moddivsi3.S
 create mode 100644 arch/h8300/lib/modsi3.S
 create mode 100644 arch/h8300/lib/muldi3.c
 create mode 100644 arch/h8300/lib/mulsi3.S
 create mode 100644 arch/h8300/lib/strncpy.S
 create mode 100644 arch/h8300/lib/ucmpdi2.c
 create mode 100644 arch/h8300/lib/udivsi3.S
 create mode 100644 arch/h8300/mm/Makefile
 create mode 100644 arch/h8300/mm/fault.c
 create mode 100644 arch/h8300/mm/init.c
 create mode 100644 arch/h8300/mm/kmap.c
 create mode 100644 arch/h8300/mm/memory.c
 create mode 100644 drivers/clk/h8300/Makefile
 create mode 100644 drivers/clk/h8300/clk-h83069.c
 create mode 100644 drivers/clk/h8300/clk-h8s2678.c
 create mode 100644 drivers/clocksource/h8300_timer16.c
 create mode 100644 drivers/clocksource/h8300_timer8.c
 create mode 100644 drivers/clocksource/h8300_tpu.c

-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 01/16] h8300: Assembly headers.
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
@ 2015-03-09  8:46 ` Yoshinori Sato
  2015-03-09  8:46 ` [PATCH v6 02/16] h8300: UAPI headers Yoshinori Sato
                   ` (15 subsequent siblings)
  16 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:46 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 arch/h8300/include/asm/Kbuild              |  66 ++++++
 arch/h8300/include/asm/asm-offsets.h       |   1 +
 arch/h8300/include/asm/atomic.h            | 159 +++++++++++++++
 arch/h8300/include/asm/bitops.h            | 185 +++++++++++++++++
 arch/h8300/include/asm/bootparams.h        |  17 ++
 arch/h8300/include/asm/bug.h               |  12 ++
 arch/h8300/include/asm/cache.h             |  11 +
 arch/h8300/include/asm/checksum.h          | 102 ++++++++++
 arch/h8300/include/asm/cmpxchg.h           |  65 ++++++
 arch/h8300/include/asm/delay.h             |  38 ++++
 arch/h8300/include/asm/device.h            |   6 +
 arch/h8300/include/asm/dma-mapping.h       | 124 ++++++++++++
 arch/h8300/include/asm/elf.h               | 101 ++++++++++
 arch/h8300/include/asm/emergency-restart.h |   6 +
 arch/h8300/include/asm/flat.h              |  27 +++
 arch/h8300/include/asm/io.h                | 314 +++++++++++++++++++++++++++++
 arch/h8300/include/asm/irq.h               |  26 +++
 arch/h8300/include/asm/irqflags.h          |  96 +++++++++
 arch/h8300/include/asm/mc146818rtc.h       |   9 +
 arch/h8300/include/asm/mutex.h             |   9 +
 arch/h8300/include/asm/page.h              |  18 ++
 arch/h8300/include/asm/page_offset.h       |   2 +
 arch/h8300/include/asm/pci.h               |  19 ++
 arch/h8300/include/asm/pgtable.h           |  49 +++++
 arch/h8300/include/asm/processor.h         | 144 +++++++++++++
 arch/h8300/include/asm/ptrace.h            |  36 ++++
 arch/h8300/include/asm/segment.h           |  49 +++++
 arch/h8300/include/asm/sh_bios.h           |   4 +
 arch/h8300/include/asm/signal.h            |  22 ++
 arch/h8300/include/asm/smp.h               |   1 +
 arch/h8300/include/asm/spinlock.h          |   6 +
 arch/h8300/include/asm/string.h            |  17 ++
 arch/h8300/include/asm/switch_to.h         |  51 +++++
 arch/h8300/include/asm/syscall.h           |  56 +++++
 arch/h8300/include/asm/thread_info.h       | 119 +++++++++++
 arch/h8300/include/asm/timer.h             |  31 +++
 arch/h8300/include/asm/tlb.h               |   8 +
 arch/h8300/include/asm/topology.h          |   6 +
 arch/h8300/include/asm/traps.h             |  41 ++++
 arch/h8300/include/asm/uaccess.h           | 136 +++++++++++++
 arch/h8300/include/asm/unaligned.h         |  11 +
 arch/h8300/include/asm/user.h              |  74 +++++++
 42 files changed, 2274 insertions(+)
 create mode 100644 arch/h8300/include/asm/Kbuild
 create mode 100644 arch/h8300/include/asm/asm-offsets.h
 create mode 100644 arch/h8300/include/asm/atomic.h
 create mode 100644 arch/h8300/include/asm/bitops.h
 create mode 100644 arch/h8300/include/asm/bootparams.h
 create mode 100644 arch/h8300/include/asm/bug.h
 create mode 100644 arch/h8300/include/asm/cache.h
 create mode 100644 arch/h8300/include/asm/checksum.h
 create mode 100644 arch/h8300/include/asm/cmpxchg.h
 create mode 100644 arch/h8300/include/asm/delay.h
 create mode 100644 arch/h8300/include/asm/device.h
 create mode 100644 arch/h8300/include/asm/dma-mapping.h
 create mode 100644 arch/h8300/include/asm/elf.h
 create mode 100644 arch/h8300/include/asm/emergency-restart.h
 create mode 100644 arch/h8300/include/asm/flat.h
 create mode 100644 arch/h8300/include/asm/io.h
 create mode 100644 arch/h8300/include/asm/irq.h
 create mode 100644 arch/h8300/include/asm/irqflags.h
 create mode 100644 arch/h8300/include/asm/mc146818rtc.h
 create mode 100644 arch/h8300/include/asm/mutex.h
 create mode 100644 arch/h8300/include/asm/page.h
 create mode 100644 arch/h8300/include/asm/page_offset.h
 create mode 100644 arch/h8300/include/asm/pci.h
 create mode 100644 arch/h8300/include/asm/pgtable.h
 create mode 100644 arch/h8300/include/asm/processor.h
 create mode 100644 arch/h8300/include/asm/ptrace.h
 create mode 100644 arch/h8300/include/asm/segment.h
 create mode 100644 arch/h8300/include/asm/sh_bios.h
 create mode 100644 arch/h8300/include/asm/signal.h
 create mode 100644 arch/h8300/include/asm/smp.h
 create mode 100644 arch/h8300/include/asm/spinlock.h
 create mode 100644 arch/h8300/include/asm/string.h
 create mode 100644 arch/h8300/include/asm/switch_to.h
 create mode 100644 arch/h8300/include/asm/syscall.h
 create mode 100644 arch/h8300/include/asm/thread_info.h
 create mode 100644 arch/h8300/include/asm/timer.h
 create mode 100644 arch/h8300/include/asm/tlb.h
 create mode 100644 arch/h8300/include/asm/topology.h
 create mode 100644 arch/h8300/include/asm/traps.h
 create mode 100644 arch/h8300/include/asm/uaccess.h
 create mode 100644 arch/h8300/include/asm/unaligned.h
 create mode 100644 arch/h8300/include/asm/user.h

diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild
new file mode 100644
index 0000000..9e9f4f3
--- /dev/null
+++ b/arch/h8300/include/asm/Kbuild
@@ -0,0 +1,66 @@
+generic-y += barrier.h
+generic-y += bitsperlong.h
+generic-y += bugs.h
+generic-y += cacheflush.h
+generic-y += clkdev.h
+generic-y += cputime.h
+generic-y += current.h
+generic-y += div64.h
+generic-y += dma.h
+generic-y += emergency-restart.h
+generic-y += errno.h
+generic-y += exec.h
+generic-y += fb.h
+generic-y += fcntl.h
+generic-y += ftrace.h
+generic-y += futex.h
+generic-y += hardirq.h
+generic-y += hash.h
+generic-y += hw_irq.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += irq_regs.h
+generic-y += irq_work.h
+generic-y += kdebug.h
+generic-y += kmap_types.h
+generic-y += kvm_para.h
+generic-y += linkage.h
+generic-y += local.h
+generic-y += local64.h
+generic-y += mcs_spinlock.h
+generic-y += mman.h
+generic-y += mmu.h
+generic-y += mmu_context.h
+generic-y += module.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += parport.h
+generic-y += percpu.h
+generic-y += pgalloc.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += preempt.h
+generic-y += resource.h
+generic-y += scatterlist.h
+generic-y += sections.h
+generic-y += sembuf.h
+generic-y += serial.h
+generic-y += setup.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += siginfo.h
+generic-y += sizes.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += timex.h
+generic-y += tlbflush.h
+generic-y += trace_clock.h
+generic-y += types.h
+generic-y += ucontext.h
+generic-y += vga.h
+generic-y += xor.h
diff --git a/arch/h8300/include/asm/asm-offsets.h b/arch/h8300/include/asm/asm-offsets.h
new file mode 100644
index 0000000..d370ee3
--- /dev/null
+++ b/arch/h8300/include/asm/asm-offsets.h
@@ -0,0 +1 @@
+#include <generated/asm-offsets.h>
diff --git a/arch/h8300/include/asm/atomic.h b/arch/h8300/include/asm/atomic.h
new file mode 100644
index 0000000..7ca73f8
--- /dev/null
+++ b/arch/h8300/include/asm/atomic.h
@@ -0,0 +1,159 @@
+#ifndef __ARCH_H8300_ATOMIC__
+#define __ARCH_H8300_ATOMIC__
+
+#include <linux/types.h>
+#include <asm/cmpxchg.h>
+
+/*
+ * Atomic operations that C can't guarantee us.  Useful for
+ * resource counting etc..
+ */
+
+#define ATOMIC_INIT(i)	{ (i) }
+
+#define atomic_read(v)		ACCESS_ONCE((v)->counter)
+#define atomic_set(v, i)	(((v)->counter) = i)
+
+#include <linux/kernel.h>
+
+static inline int atomic_add_return(int i, atomic_t *v)
+{
+	h8300flags flags;
+	int ret;
+
+	flags = arch_local_irq_save();
+	ret = v->counter += i;
+	arch_local_irq_restore(flags);
+	return ret;
+}
+
+#define atomic_add(i, v) atomic_add_return(i, v)
+#define atomic_add_negative(a, v)	(atomic_add_return((a), (v)) < 0)
+
+static inline int atomic_sub_return(int i, atomic_t *v)
+{
+	h8300flags flags;
+	int ret;
+
+	flags = arch_local_irq_save();
+	ret = v->counter -= i;
+	arch_local_irq_restore(flags);
+	return ret;
+}
+
+#define atomic_sub(i, v) atomic_sub_return(i, v)
+#define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
+
+static inline int atomic_inc_return(atomic_t *v)
+{
+	h8300flags flags;
+	int ret;
+
+	flags = arch_local_irq_save();
+	v->counter++;
+	ret = v->counter;
+	arch_local_irq_restore(flags);
+	return ret;
+}
+
+#define atomic_inc(v) atomic_inc_return(v)
+
+/*
+ * atomic_inc_and_test - increment and test
+ * @v: pointer of type atomic_t
+ *
+ * Atomically increments @v by 1
+ * and returns true if the result is zero, or false for all
+ * other cases.
+ */
+#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
+
+static inline int atomic_dec_return(atomic_t *v)
+{
+	h8300flags flags;
+	int ret;
+
+	flags = arch_local_irq_save();
+	--v->counter;
+	ret = v->counter;
+	arch_local_irq_restore(flags);
+	return ret;
+}
+
+#define atomic_dec(v) atomic_dec_return(v)
+
+static inline int atomic_dec_and_test(atomic_t *v)
+{
+	h8300flags flags;
+	int ret;
+
+	flags = arch_local_irq_save();
+	--v->counter;
+	ret = v->counter;
+	arch_local_irq_restore(flags);
+	return ret == 0;
+}
+
+static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
+{
+	int ret;
+	h8300flags flags;
+
+	flags = arch_local_irq_save();
+	ret = v->counter;
+	if (likely(ret == old))
+		v->counter = new;
+	arch_local_irq_restore(flags);
+	return ret;
+}
+
+static inline int __atomic_add_unless(atomic_t *v, int a, int u)
+{
+	int ret;
+	h8300flags flags;
+
+	flags = arch_local_irq_save();
+	ret = v->counter;
+	if (ret != u)
+		v->counter += a;
+	arch_local_irq_restore(flags);
+	return ret;
+}
+
+static inline void atomic_clear_mask(unsigned long mask, unsigned long *v)
+{
+	unsigned char ccr;
+	unsigned long tmp;
+
+	__asm__ __volatile__("stc ccr,%w3\n\t"
+			     "orc #0x80,ccr\n\t"
+			     "mov.l %0,%1\n\t"
+			     "and.l %2,%1\n\t"
+			     "mov.l %1,%0\n\t"
+			     "ldc %w3,ccr"
+			     : "=m"(*v), "=r"(tmp)
+			     : "g"(~(mask)), "r"(ccr));
+}
+
+static inline void atomic_set_mask(unsigned long mask, unsigned long *v)
+{
+	unsigned char ccr;
+	unsigned long tmp;
+
+	__asm__ __volatile__("stc ccr,%w3\n\t"
+			     "orc #0x80,ccr\n\t"
+			     "mov.l %0,%1\n\t"
+			     "or.l %2,%1\n\t"
+			     "mov.l %1,%0\n\t"
+			     "ldc %w3,ccr"
+			     : "=m"(*v), "=r"(tmp)
+			     : "g"(~(mask)), "r"(ccr));
+}
+
+/* Atomic operations are already serializing */
+#define smp_mb__before_atomic_dec()    barrier()
+#define smp_mb__after_atomic_dec() barrier()
+#define smp_mb__before_atomic_inc()    barrier()
+#define smp_mb__after_atomic_inc() barrier()
+
+#endif /* __ARCH_H8300_ATOMIC __ */
diff --git a/arch/h8300/include/asm/bitops.h b/arch/h8300/include/asm/bitops.h
new file mode 100644
index 0000000..05999ab
--- /dev/null
+++ b/arch/h8300/include/asm/bitops.h
@@ -0,0 +1,185 @@
+#ifndef _H8300_BITOPS_H
+#define _H8300_BITOPS_H
+
+/*
+ * Copyright 1992, Linus Torvalds.
+ * Copyright 2002, Yoshinori Sato
+ */
+
+#include <linux/compiler.h>
+
+#ifdef __KERNEL__
+
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
+/*
+ * Function prototypes to keep gcc -Wall happy
+ */
+
+/*
+ * ffz = Find First Zero in word. Undefined if no zero exists,
+ * so code should check against ~0UL first..
+ */
+static inline unsigned long ffz(unsigned long word)
+{
+	unsigned long result;
+
+	result = -1;
+	__asm__("1:\n\t"
+		"shlr.l %2\n\t"
+		"adds #1,%0\n\t"
+		"bcs 1b"
+		: "=r"(result)
+		: "0"(result), "r"(word));
+	return result;
+}
+
+#define H8300_GEN_BITOP(FNAME, OP)				\
+static inline void FNAME(int nr, volatile unsigned long *addr)	\
+{								\
+	unsigned char *b_addr;					\
+	unsigned char bit = nr & 7;				\
+								\
+	b_addr = (unsigned char *)addr + ((nr >> 3) ^ 3);	\
+	if (__builtin_constant_p(nr)) {				\
+		__asm__(OP " %1,%0" : "+WU"(*b_addr) : "i"(nr & 7));	\
+	} else {						\
+		__asm__(OP " %s1,%0" : "+WU"(*b_addr) : "r"(bit));	\
+	}							\
+}
+
+/*
+ * clear_bit() doesn't provide any barrier for the compiler.
+ */
+#define smp_mb__before_clear_bit()	barrier()
+#define smp_mb__after_clear_bit()	barrier()
+
+H8300_GEN_BITOP(set_bit,    "bset")
+H8300_GEN_BITOP(clear_bit,  "bclr")
+H8300_GEN_BITOP(change_bit, "bnot")
+#define __set_bit(nr, addr)    set_bit((nr), (addr))
+#define __clear_bit(nr, addr)  clear_bit((nr), (addr))
+#define __change_bit(nr, addr) change_bit((nr), (addr))
+
+#undef H8300_GEN_BITOP
+
+static inline int test_bit(int nr, const unsigned long *addr)
+{
+	int ret = 0;
+	unsigned char *b_addr;
+	unsigned char bit = nr & 7;
+
+	b_addr = (unsigned char *)addr + ((nr >> 3) ^ 3);
+	if (__builtin_constant_p(nr)) {
+		__asm__("bld %Z2,%1\n\t"
+			"rotxl %0\n\t"
+			: "=r"(ret)
+			: "WU"(*b_addr), "i"(nr & 7), "0"(ret) : "cc");
+	} else {
+		__asm__("btst %w2,%1\n\t"
+			"beq 1f\n\t"
+			"inc.l #1,%0\n"
+			"1:"
+			: "=r"(ret)
+			: "WU"(*b_addr), "r"(bit), "0"(ret) : "cc");
+	}
+	return ret;
+}
+
+#define __test_bit(nr, addr) test_bit(nr, addr)
+
+#define H8300_GEN_TEST_BITOP(FNNAME, OP)				\
+static inline int FNNAME(int nr, void *addr)				\
+{									\
+	int retval = 0;							\
+	char ccrsave;							\
+	unsigned char *b_addr;						\
+	unsigned char bit = nr & 7;					\
+									\
+	b_addr = (unsigned char *)addr + ((nr >> 3) ^ 3);		\
+	if (__builtin_constant_p(nr)) {					\
+		__asm__("stc ccr,%s2\n\t"				\
+			"orc #0x80,ccr\n\t"				\
+			"bld %4,%1\n\t"					\
+			OP " %4,%1\n\t"					\
+			"rotxl.l %0\n\t"				\
+			"ldc %s2,ccr"					\
+			: "=r"(retval), "+WU" (*b_addr), "=&r"(ccrsave)	\
+			: "0"(retval), "i"(nr & 7) : "cc");		\
+	} else {							\
+		__asm__("stc ccr,%t3\n\t"				\
+			"orc #0x80,ccr\n\t"				\
+			"btst %s3,%1\n\t"				\
+			OP " %s3,%1\n\t"				\
+			"beq 1f\n\t"					\
+			"inc.l #1,%0\n\t"				\
+			"1:\n"						\
+			"ldc %t3,ccr"					\
+			: "=r"(retval), "+WU" (*b_addr)			\
+			: "0" (retval), "r"(bit) : "cc");		\
+	}								\
+	return retval;							\
+}									\
+									\
+static inline int __ ## FNNAME(int nr, void *addr)			\
+{									\
+	int retval = 0;							\
+	unsigned char *b_addr;						\
+	unsigned char bit = nr & 7;					\
+									\
+	b_addr = (unsigned char *)addr + ((nr >> 3) ^ 3);		\
+	if (__builtin_constant_p(nr)) {					\
+		__asm__("bld %3,%1\n\t"					\
+			OP " %3,%1\n\t"					\
+			"rotxl.l %0\n\t"				\
+			: "=r"(retval), "+WU"(*b_addr)			\
+			: "0" (retval), "i"(nr & 7));			\
+	} else {							\
+		__asm__("btst %s3,%1\n\t"				\
+			OP " %s3,%1\n\t"				\
+			"beq 1f\n\t"					\
+			"inc.l #1,%0\n\t"				\
+			"1:"						\
+			: "=r"(retval), "+WU"(*b_addr)			\
+			: "0" (retval), "r"(bit));			\
+	}								\
+	return retval;							\
+}
+
+H8300_GEN_TEST_BITOP(test_and_set_bit,	  "bset")
+H8300_GEN_TEST_BITOP(test_and_clear_bit,  "bclr")
+H8300_GEN_TEST_BITOP(test_and_change_bit, "bnot")
+#undef H8300_GEN_TEST_BITOP
+
+#include <asm-generic/bitops/ffs.h>
+
+static inline unsigned long __ffs(unsigned long word)
+{
+	unsigned long result;
+
+	result = -1;
+	__asm__("1:\n\t"
+		"shlr.l %2\n\t"
+		"adds #1,%0\n\t"
+		"bcc 1b"
+		: "=r" (result)
+		: "0"(result), "r"(word));
+	return result;
+}
+
+#include <asm-generic/bitops/find.h>
+#include <asm-generic/bitops/sched.h>
+#include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/lock.h>
+#include <asm-generic/bitops/le.h>
+#include <asm-generic/bitops/ext2-atomic.h>
+
+#endif /* __KERNEL__ */
+
+#include <asm-generic/bitops/fls.h>
+#include <asm-generic/bitops/__fls.h>
+#include <asm-generic/bitops/fls64.h>
+
+#endif /* _H8300_BITOPS_H */
diff --git a/arch/h8300/include/asm/bootparams.h b/arch/h8300/include/asm/bootparams.h
new file mode 100644
index 0000000..6c0b145
--- /dev/null
+++ b/arch/h8300/include/asm/bootparams.h
@@ -0,0 +1,17 @@
+/*
+H8/300 kernel boot parameters
+*/
+
+#ifndef __ASM_H8300_BOOTPARAMS__
+#define __ASM_H8300_BOOTPARAMS__
+
+struct bootparams {
+	short size;
+	unsigned char gpio_ddr[24];
+	unsigned char gpio_use[24];
+	unsigned int clock_freq;
+	unsigned int ram_end;
+	unsigned char *command_line;
+} __packed __aligned(2);
+
+#endif
diff --git a/arch/h8300/include/asm/bug.h b/arch/h8300/include/asm/bug.h
new file mode 100644
index 0000000..1e1be81
--- /dev/null
+++ b/arch/h8300/include/asm/bug.h
@@ -0,0 +1,12 @@
+#ifndef _H8300_BUG_H
+#define _H8300_BUG_H
+
+/* always true */
+#define is_valid_bugaddr(addr) (1)
+
+#include <asm-generic/bug.h>
+
+struct pt_regs;
+extern void die(const char *str, struct pt_regs *fp, unsigned long err);
+
+#endif
diff --git a/arch/h8300/include/asm/cache.h b/arch/h8300/include/asm/cache.h
new file mode 100644
index 0000000..0ef1edc
--- /dev/null
+++ b/arch/h8300/include/asm/cache.h
@@ -0,0 +1,11 @@
+#ifndef __ARCH_H8300_CACHE_H
+#define __ARCH_H8300_CACHE_H
+
+/* bytes per L1 cache line */
+#define        L1_CACHE_SHIFT  2
+#define        L1_CACHE_BYTES  (1 << L1_CACHE_SHIFT)
+
+#define __cacheline_aligned
+#define ____cacheline_aligned
+
+#endif
diff --git a/arch/h8300/include/asm/checksum.h b/arch/h8300/include/asm/checksum.h
new file mode 100644
index 0000000..59e2adc9
--- /dev/null
+++ b/arch/h8300/include/asm/checksum.h
@@ -0,0 +1,102 @@
+#ifndef _H8300_CHECKSUM_H
+#define _H8300_CHECKSUM_H
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+__wsum csum_partial(const void *buff, int len, __wsum sum);
+
+/*
+ * the same as csum_partial, but copies from src while it
+ * checksums
+ *
+ * here even more important to align src and dst on a 32-bit (or even
+ * better 64-bit) boundary
+ */
+
+__wsum csum_partial_copy_nocheck(const void *src, void *dst,
+				 int len, __wsum sum);
+
+
+/*
+ * the same as csum_partial_copy, but copies from user space.
+ *
+ * here even more important to align src and dst on a 32-bit (or even
+ * better 64-bit) boundary
+ */
+
+extern __wsum csum_partial_copy_from_user(const void __user *src, void *dst,
+					  int len, __wsum sum, int *csum_err);
+
+__sum16 ip_fast_csum(const void *iph, unsigned int ihl);
+
+
+/*
+ *	Fold a partial checksum
+ */
+
+static inline __sum16 csum_fold(__wsum sum)
+{
+	__asm__("add.w %e0,%f0\n\t"
+		"xor.w %e0,%e0\n\t"
+		"rotxl.w %e0\n\t"
+		"add.w %e0,%f0\n\t"
+		"sub.w %e0,%e0\n\t"
+		: "=r"(sum)
+		: "0"(sum));
+	return (__force __sum16)~sum;
+}
+
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+
+static inline __wsum
+csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
+		  unsigned short proto, __wsum sum)
+{
+	int tmp;
+
+	__asm__ ("sub.l %1,%1\n\t"
+		 "add.l %3,%0\n\t"
+		 "addx	#0,%w1\n\t"
+		 "add.l	%4,%0\n\t"
+		 "addx	#0,%w1\n\t"
+		 "add.l %5,%0\n\t"
+		 "addx	#0,%w1\n\t"
+		 "add.l	%1,%0\n\t"
+		 "bcc	1f\n\t"
+		 "inc.l	#1,%0\n"
+		 "1:"
+		 : "=&r" (sum), "=&r"(tmp)
+		 : "0" (sum), "1" (daddr),
+		   "r" (saddr), "r" (len + proto));
+	return sum;
+}
+
+static inline __sum16
+csum_tcpudp_magic(__be32 saddr, __be32 daddr, unsigned short len,
+		  unsigned short proto, __wsum sum)
+{
+	return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
+}
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+
+extern __sum16 ip_compute_csum(const void *buff, int len);
+
+#endif /* _H8300_CHECKSUM_H */
diff --git a/arch/h8300/include/asm/cmpxchg.h b/arch/h8300/include/asm/cmpxchg.h
new file mode 100644
index 0000000..95fec4c
--- /dev/null
+++ b/arch/h8300/include/asm/cmpxchg.h
@@ -0,0 +1,65 @@
+#ifndef __ARCH_H8300_CMPXCHG__
+#define __ARCH_H8300_CMPXCHG__
+
+#include <linux/irqflags.h>
+
+#define xchg(ptr, x) \
+	((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), \
+				    sizeof(*(ptr))))
+
+struct __xchg_dummy { unsigned long a[100]; };
+#define __xg(x) ((volatile struct __xchg_dummy *)(x))
+
+static inline unsigned long __xchg(unsigned long x,
+				   volatile void *ptr, int size)
+{
+	unsigned long tmp, flags;
+
+	local_irq_save(flags);
+
+	switch (size) {
+	case 1:
+		__asm__ __volatile__
+			("mov.b %2,%0\n\t"
+			 "mov.b %1,%2"
+			 : "=&r" (tmp) : "r" (x), "m" (*__xg(ptr)));
+		break;
+	case 2:
+		__asm__ __volatile__
+			("mov.w %2,%0\n\t"
+			 "mov.w %1,%2"
+			 : "=&r" (tmp) : "r" (x), "m" (*__xg(ptr)));
+		break;
+	case 4:
+		__asm__ __volatile__
+			("mov.l %2,%0\n\t"
+			 "mov.l %1,%2"
+			 : "=&r" (tmp) : "r" (x), "m" (*__xg(ptr)));
+		break;
+	default:
+		tmp = 0;
+	}
+	local_irq_restore(flags);
+	return tmp;
+}
+
+#include <asm-generic/cmpxchg-local.h>
+
+/*
+ * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
+ * them available.
+ */
+#define cmpxchg_local(ptr, o, n)					 \
+	((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr),		 \
+						     (unsigned long)(o), \
+						     (unsigned long)(n), \
+						     sizeof(*(ptr))))
+#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+
+#ifndef CONFIG_SMP
+#include <asm-generic/cmpxchg.h>
+#endif
+
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+
+#endif /* __ARCH_H8300_CMPXCHG__ */
diff --git a/arch/h8300/include/asm/delay.h b/arch/h8300/include/asm/delay.h
new file mode 100644
index 0000000..2bdde59
--- /dev/null
+++ b/arch/h8300/include/asm/delay.h
@@ -0,0 +1,38 @@
+#ifndef _H8300_DELAY_H
+#define _H8300_DELAY_H
+
+#include <asm/param.h>
+
+/*
+ * Copyright (C) 2002 Yoshinori Sato <ysato@sourceforge.jp>
+ *
+ * Delay routines, using a pre-computed "loops_per_second" value.
+ */
+
+static inline void __delay(unsigned long loops)
+{
+	__asm__ __volatile__ ("1:\n\t"
+			      "dec.l #1,%0\n\t"
+			      "bne 1b"
+			      : "=r" (loops) : "0"(loops));
+}
+
+/*
+ * Use only for very small delays ( < 1 msec).  Should probably use a
+ * lookup table, really, as the multiplications take much too long with
+ * short delays.  This is a "reasonable" implementation, though (and the
+ * first constant multiplications gets optimized away if the delay is
+ * a constant)
+ */
+
+extern unsigned long loops_per_jiffy;
+
+static inline void udelay(unsigned long usecs)
+{
+	usecs *= 4295;		/* 2**32 / 1000000 */
+	usecs /= (loops_per_jiffy*HZ);
+	if (usecs)
+		__delay(usecs);
+}
+
+#endif /* _H8300_DELAY_H */
diff --git a/arch/h8300/include/asm/device.h b/arch/h8300/include/asm/device.h
new file mode 100644
index 0000000..06746c5
--- /dev/null
+++ b/arch/h8300/include/asm/device.h
@@ -0,0 +1,6 @@
+/*
+ * Arch specific extensions to struct device
+ *
+ * This file is released under the GPLv2
+ */
+#include <asm-generic/device.h>
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
new file mode 100644
index 0000000..f6f4716
--- /dev/null
+++ b/arch/h8300/include/asm/dma-mapping.h
@@ -0,0 +1,124 @@
+#ifndef _H8300_DMA_MAPPING_H
+#define _H8300_DMA_MAPPING_H
+
+struct scatterlist;
+
+static inline int dma_supported(struct device *dev, u64 mask)
+{
+	return 1;
+}
+
+static inline int dma_set_mask(struct device *dev, u64 mask)
+{
+	return 0;
+}
+
+extern void *dma_alloc_coherent(struct device *, size_t,
+				dma_addr_t *, gfp_t);
+extern void dma_free_coherent(struct device *, size_t,
+			      void *, dma_addr_t);
+
+static inline void *dma_alloc_attrs(struct device *dev, size_t size,
+				    dma_addr_t *dma_handle, gfp_t flag,
+				    struct dma_attrs *attrs)
+{
+	/* attrs is not supported and ignored */
+	return dma_alloc_coherent(dev, size, dma_handle, flag);
+}
+
+static inline void dma_free_attrs(struct device *dev, size_t size,
+				  void *cpu_addr, dma_addr_t dma_handle,
+				  struct dma_attrs *attrs)
+{
+	/* attrs is not supported and ignored */
+	dma_free_coherent(dev, size, cpu_addr, dma_handle);
+}
+
+static inline void *dma_alloc_noncoherent(struct device *dev, size_t size,
+					  dma_addr_t *handle, gfp_t flag)
+{
+	return dma_alloc_coherent(dev, size, handle, flag);
+}
+static inline void dma_free_noncoherent(struct device *dev, size_t size,
+					void *addr, dma_addr_t handle)
+{
+	dma_free_coherent(dev, size, addr, handle);
+}
+static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
+				  enum dma_data_direction dir)
+{
+	/* we use coherent allocation, so not much to do here. */
+}
+
+extern dma_addr_t dma_map_single(struct device *, void *, size_t,
+				 enum dma_data_direction);
+static inline void dma_unmap_single(struct device *dev, dma_addr_t addr,
+				    size_t size, enum dma_data_direction dir)
+{
+}
+
+extern dma_addr_t dma_map_page(struct device *, struct page *,
+			       unsigned long, size_t size,
+			       enum dma_data_direction);
+static inline void dma_unmap_page(struct device *dev, dma_addr_t address,
+				  size_t size, enum dma_data_direction dir)
+{
+}
+
+extern int dma_map_sg(struct device *, struct scatterlist *, int,
+		      enum dma_data_direction);
+static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+				int nhwentries, enum dma_data_direction dir)
+{
+}
+
+extern void dma_sync_single_for_device(struct device *, dma_addr_t, size_t,
+				       enum dma_data_direction);
+extern void dma_sync_sg_for_device(struct device *, struct scatterlist *, int,
+				   enum dma_data_direction);
+
+static inline void dma_sync_single_range_for_device(struct device *dev,
+		dma_addr_t dma_handle, unsigned long offset, size_t size,
+		enum dma_data_direction direction)
+{
+	/* just sync everything for now */
+	dma_sync_single_for_device(dev, dma_handle, offset + size, direction);
+}
+
+static inline void dma_sync_single_for_cpu(struct device *dev,
+					   dma_addr_t handle,
+					   size_t size,
+					   enum dma_data_direction dir)
+{
+}
+
+static inline void dma_sync_sg_for_cpu(struct device *dev,
+				       struct scatterlist *sg,
+				       int nents, enum dma_data_direction dir)
+{
+}
+
+static inline void dma_sync_single_range_for_cpu(struct device *dev,
+		dma_addr_t dma_handle, unsigned long offset, size_t size,
+		enum dma_data_direction direction)
+{
+	/* just sync everything for now */
+	dma_sync_single_for_cpu(dev, dma_handle, offset + size, direction);
+}
+
+static inline int dma_mapping_error(struct device *dev, dma_addr_t handle)
+{
+	return 0;
+}
+
+/* drivers/base/dma-mapping.c */
+extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
+			   void *cpu_addr, dma_addr_t dma_addr, size_t size);
+extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
+				  void *cpu_addr, dma_addr_t dma_addr,
+				  size_t size);
+
+#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h, s)
+#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s)
+
+#endif
diff --git a/arch/h8300/include/asm/elf.h b/arch/h8300/include/asm/elf.h
new file mode 100644
index 0000000..09031d0
--- /dev/null
+++ b/arch/h8300/include/asm/elf.h
@@ -0,0 +1,101 @@
+#ifndef __ASM_H8300_ELF_H
+#define __ASM_H8300_ELF_H
+
+/*
+ * ELF register definitions..
+ */
+
+#include <asm/ptrace.h>
+#include <asm/user.h>
+
+typedef unsigned long elf_greg_t;
+
+#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+typedef unsigned long elf_fpregset_t;
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) ((x)->e_machine == EM_H8_300)
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS	ELFCLASS32
+#define ELF_DATA	ELFDATA2MSB
+#define ELF_ARCH	EM_H8_300
+#if defined(CONFIG_CPU_H8300H)
+#define ELF_CORE_EFLAGS 0x810000
+#endif
+#if defined(CONFIG_CPU_H8S)
+#define ELF_CORE_EFLAGS 0x820000
+#endif
+
+#define ELF_PLAT_INIT(_r) do { (_r)->er1 = 0; } while (0)
+
+#define ELF_EXEC_PAGESIZE	4096
+
+/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
+   use of this is to invoke "./ld.so someprog" to test out a new version of
+   the loader.  We need to make sure that it is out of the way of the program
+   that it will "exec", and that there is sufficient room for the brk.  */
+
+#define ELF_ET_DYN_BASE         0xD0000000UL
+
+/* This yields a mask that user programs can use to figure out what
+   instruction set this cpu supports.  */
+
+#define ELF_HWCAP	(0)
+
+/* This yields a string that ld.so will use to load implementation
+   specific libraries for optimization.  This is more specific in
+   intent than poking at uname or /proc/cpuinfo.  */
+
+#define ELF_PLATFORM  (NULL)
+
+#define R_H8_NONE       0
+#define R_H8_DIR32      1
+#define R_H8_DIR32_28   2
+#define R_H8_DIR32_24   3
+#define R_H8_DIR32_16   4
+#define R_H8_DIR32U     6
+#define R_H8_DIR32U_28  7
+#define R_H8_DIR32U_24  8
+#define R_H8_DIR32U_20  9
+#define R_H8_DIR32U_16 10
+#define R_H8_DIR24     11
+#define R_H8_DIR24_20  12
+#define R_H8_DIR24_16  13
+#define R_H8_DIR24U    14
+#define R_H8_DIR24U_20 15
+#define R_H8_DIR24U_16 16
+#define R_H8_DIR16     17
+#define R_H8_DIR16U    18
+#define R_H8_DIR16S_32 19
+#define R_H8_DIR16S_28 20
+#define R_H8_DIR16S_24 21
+#define R_H8_DIR16S_20 22
+#define R_H8_DIR16S    23
+#define R_H8_DIR8      24
+#define R_H8_DIR8U     25
+#define R_H8_DIR8Z_32  26
+#define R_H8_DIR8Z_28  27
+#define R_H8_DIR8Z_24  28
+#define R_H8_DIR8Z_20  29
+#define R_H8_DIR8Z_16  30
+#define R_H8_PCREL16   31
+#define R_H8_PCREL8    32
+#define R_H8_BPOS      33
+#define R_H8_PCREL32   34
+#define R_H8_GOT32O    35
+#define R_H8_GOT16O    36
+#define R_H8_DIR16A8   59
+#define R_H8_DIR16R8   60
+#define R_H8_DIR24A8   61
+#define R_H8_DIR24R8   62
+#define R_H8_DIR32A16  63
+#define R_H8_ABS32     65
+#define R_H8_ABS32A16 127
+
+#endif
diff --git a/arch/h8300/include/asm/emergency-restart.h b/arch/h8300/include/asm/emergency-restart.h
new file mode 100644
index 0000000..108d8c4
--- /dev/null
+++ b/arch/h8300/include/asm/emergency-restart.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_EMERGENCY_RESTART_H
+#define _ASM_EMERGENCY_RESTART_H
+
+#include <asm-generic/emergency-restart.h>
+
+#endif /* _ASM_EMERGENCY_RESTART_H */
diff --git a/arch/h8300/include/asm/flat.h b/arch/h8300/include/asm/flat.h
new file mode 100644
index 0000000..9ff092e
--- /dev/null
+++ b/arch/h8300/include/asm/flat.h
@@ -0,0 +1,27 @@
+/*
+ * arch/h8300/asm/include/flat.h -- uClinux flat-format executables
+ */
+
+#ifndef __H8300_FLAT_H__
+#define __H8300_FLAT_H__
+
+#define	flat_argvp_envp_on_stack()		1
+#define	flat_old_ram_flag(flags)		1
+#define	flat_reloc_valid(reloc, size)		((reloc) <= (size))
+#define	flat_set_persistent(relval, p)		0
+
+/*
+ * on the H8 a couple of the relocations have an instruction in the
+ * top byte.  As there can only be 24bits of address space,  we just
+ * always preserve that 8bits at the top,  when it isn't an instruction
+ * is is 0 (davidm@snapgear.com)
+ */
+
+#define	flat_get_relocate_addr(rel)		(rel & ~0x00000001)
+#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
+	(get_unaligned(rp) & (((flags) & FLAT_FLAG_GOTPIC) ? \
+			      0xffffffff : 0x00ffffff))
+#define flat_put_addr_at_rp(rp, addr, rel) \
+	put_unaligned(((*(char *)(rp)) << 24) | ((addr) & 0x00ffffff), (rp))
+
+#endif /* __H8300_FLAT_H__ */
diff --git a/arch/h8300/include/asm/io.h b/arch/h8300/include/asm/io.h
new file mode 100644
index 0000000..51ee096
--- /dev/null
+++ b/arch/h8300/include/asm/io.h
@@ -0,0 +1,314 @@
+#ifndef _H8300_IO_H
+#define _H8300_IO_H
+
+#ifdef __KERNEL__
+
+#include <linux/types.h>
+
+#define __raw_readb(addr) ({ u8 __v = *(volatile u8 *)(addr); __v; })
+
+#define __raw_readw(addr) ({ u16 __v = *(volatile u16 *)(addr); __v; })
+
+#define __raw_readl(addr) ({ u32 __v = *(volatile u32 *)(addr); __v; })
+
+#define __raw_writeb(b, addr) (void)((*(volatile u8 *)(addr)) = (b))
+
+#define __raw_writew(b, addr) (void)((*(volatile u16 *)(addr)) = (b))
+
+#define __raw_writel(b, addr) (void)((*(volatile u32 *)(addr)) = (b))
+
+#define readb __raw_readb
+#define readw __raw_readw
+#define readl __raw_readl
+#define writeb __raw_writeb
+#define writew __raw_writew
+#define writel __raw_writel
+
+#if defined(CONFIG_H83069)
+#define ABWCR  0xFEE020
+#elif defined(CONFIG_H8S2678)
+#define ABWCR  0xFFFEC0
+#endif
+
+#ifdef CONFIG_H8300_BUBSSWAP
+#define _swapw(x) __builtin_bswap16(x)
+#define _swapl(x) __builtin_bswap32(x)
+#else
+#define _swapw(x) (x)
+#define _swapl(x) (x)
+#endif
+
+static inline int h8300_buswidth(unsigned int addr)
+{
+	return (*(volatile u8 *)ABWCR & (1 << ((addr >> 21) & 7))) == 0;
+}
+
+static inline void io_outsb(unsigned int addr, const void *buf, int len)
+{
+	volatile unsigned char  *ap_b = (volatile unsigned char *) addr;
+	volatile unsigned short *ap_w = (volatile unsigned short *) addr;
+	unsigned char *bp = (unsigned char *) buf;
+
+	if (h8300_buswidth(addr) && (addr & 1)) {
+		while (len--)
+			*ap_w = *bp++;
+	} else {
+		while (len--)
+			*ap_b = *bp++;
+	}
+}
+
+static inline void io_outsw(unsigned int addr, const void *buf, int len)
+{
+	volatile unsigned short *ap = (volatile unsigned short *) addr;
+	unsigned short *bp = (unsigned short *) buf;
+
+	while (len--)
+		*ap = _swapw(*bp++);
+}
+
+static inline void io_outsl(unsigned int addr, const void *buf, int len)
+{
+	volatile unsigned short *ap = (volatile unsigned short *) addr;
+	unsigned short *bp = (unsigned short *) buf;
+
+	while (len--) {
+		*(ap + 1) = _swapw(*(bp + 0));
+		*(ap + 0) = _swapw(*(bp + 1));
+		bp += 2;
+	}
+}
+
+static inline void io_outsw_noswap(unsigned int addr, const void *buf, int len)
+{
+	volatile unsigned short *ap = (volatile unsigned short *) addr;
+	unsigned short *bp = (unsigned short *) buf;
+
+	while (len--)
+		*ap = *bp++;
+}
+
+static inline void io_outsl_noswap(unsigned int addr, const void *buf, int len)
+{
+	volatile unsigned long *ap = (volatile unsigned long *) addr;
+	unsigned long *bp = (unsigned long *) buf;
+
+	while (len--)
+		*ap = *bp++;
+}
+
+static inline void io_insb(unsigned int addr, void *buf, int len)
+{
+	volatile unsigned char  *ap_b;
+	volatile unsigned short *ap_w;
+	unsigned char *bp = (unsigned char *) buf;
+
+	if (h8300_buswidth(addr)) {
+		ap_w = (volatile unsigned short *)(addr & ~1);
+		while (len--)
+			*bp++ = *ap_w & 0xff;
+	} else {
+		ap_b = (volatile unsigned char *)addr;
+		while (len--)
+			*bp++ = *ap_b;
+	}
+}
+
+static inline void io_insw(unsigned int addr, void *buf, int len)
+{
+	volatile unsigned short *ap = (volatile unsigned short *) addr;
+	unsigned short *bp = (unsigned short *) buf;
+
+	while (len--)
+		*bp++ = _swapw(*ap);
+}
+
+static inline void io_insl(unsigned int addr, void *buf, int len)
+{
+	volatile unsigned short *ap = (volatile unsigned short *) addr;
+	unsigned short *bp = (unsigned short *) buf;
+
+	while (len--) {
+		*(bp + 0) = _swapw(*(ap + 1));
+		*(bp + 1) = _swapw(*(ap + 0));
+		bp += 2;
+	}
+}
+
+static inline void io_insw_noswap(unsigned int addr, void *buf, int len)
+{
+	volatile unsigned short *ap = (volatile unsigned short *) addr;
+	unsigned short *bp = (unsigned short *) buf;
+
+	while (len--)
+		*bp++ = *ap;
+}
+
+static inline void io_insl_noswap(unsigned int addr, void *buf, int len)
+{
+	volatile unsigned long *ap = (volatile unsigned long *) addr;
+	unsigned long *bp = (unsigned long *) buf;
+
+	while (len--)
+		*bp++ = *ap;
+}
+
+/*
+ *	make the short names macros so specific devices
+ *	can override them as required
+ */
+
+#define memset_io(a, b, c)	memset((void *)(a), (b), (c))
+#define memcpy_fromio(a, b, c)	memcpy((a), (void *)(b), (c))
+#define memcpy_toio(a, b, c)	memcpy((void *)(a), (b), (c))
+
+#define mmiowb()
+
+#define inb(addr)    ((h8300_buswidth(addr)) ? \
+		      __raw_readw((addr) & ~1) & 0xff:__raw_readb(addr))
+#define inw(addr)    _swapw(__raw_readw(addr))
+#define inl(addr)    (_swapw(__raw_readw(addr) << 16 | \
+			     _swapw(__raw_readw(addr + 2))))
+#define outb(x, addr) ((void)((h8300_buswidth(addr) && ((addr) & 1)) ? \
+			      __raw_writeb(x, (addr) & ~1) : \
+			      __raw_writeb(x, addr)))
+#define outw(x, addr) ((void) __raw_writew(_swapw(x), addr))
+#define outl(x, addr) \
+		((void) __raw_writel(_swapw(x & 0xffff) | \
+				      _swapw(x >> 16) << 16, addr))
+
+#define inb_p(addr)    inb(addr)
+#define inw_p(addr)    inw(addr)
+#define inl_p(addr)    inl(addr)
+#define outb_p(x, addr) outb(x, addr)
+#define outw_p(x, addr) outw(x, addr)
+#define outl_p(x, addr) outl(x, addr)
+
+#define outsb(a, b, l) io_outsb(a, b, l)
+#define outsw(a, b, l) io_outsw(a, b, l)
+#define outsl(a, b, l) io_outsl(a, b, l)
+
+#define insb(a, b, l) io_insb(a, b, l)
+#define insw(a, b, l) io_insw(a, b, l)
+#define insl(a, b, l) io_insl(a, b, l)
+
+#define ioread8(a)		__raw_readb(a)
+#define ioread16(a)		__raw_readw(a)
+#define ioread32(a)		__raw_readl(a)
+
+#define iowrite8(v, a)		__raw_writeb((v), (a))
+#define iowrite16(v, a)		__raw_writew((v), (a))
+#define iowrite32(v, a)		__raw_writel((v), (a))
+
+#define ioread8_rep(p, d, c)	insb(p, d, c)
+#define ioread16_rep(p, d, c)	insw(p, d, c)
+#define ioread32_rep(p, d, c)	insl(p, d, c)
+#define iowrite8_rep(p, s, c)	outsb(p, s, c)
+#define iowrite16_rep(p, s, c)	outsw(p, s, c)
+#define iowrite32_rep(p, s, c)	outsl(p, s, c)
+
+#define IO_SPACE_LIMIT 0xffffff
+
+/* Values for nocacheflag and cmode */
+#define IOMAP_FULL_CACHING		0
+#define IOMAP_NOCACHE_SER		1
+#define IOMAP_NOCACHE_NONSER		2
+#define IOMAP_WRITETHROUGH		3
+
+extern void *__ioremap(unsigned long physaddr, unsigned long size,
+		       int cacheflag);
+extern void __iounmap(void *addr, unsigned long size);
+
+static inline void *ioremap(unsigned long physaddr, unsigned long size)
+{
+	return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
+}
+static inline void *ioremap_nocache(unsigned long physaddr,
+				    unsigned long size)
+{
+	return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
+}
+static inline void *ioremap_writethrough(unsigned long physaddr,
+					 unsigned long size)
+{
+	return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
+}
+static inline void *ioremap_fullcache(unsigned long physaddr,
+				      unsigned long size)
+{
+	return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
+}
+
+extern void iounmap(void *addr);
+
+#define ioremap_wc ioremap_nocache
+
+/* H8/300 internal I/O functions */
+static inline unsigned char ctrl_inb(unsigned long addr)
+{
+	return *(volatile unsigned char *)addr;
+}
+
+static inline unsigned short ctrl_inw(unsigned long addr)
+{
+	return *(volatile unsigned short *)addr;
+}
+
+static inline unsigned long ctrl_inl(unsigned long addr)
+{
+	return *(volatile unsigned long *)addr;
+}
+
+static inline void ctrl_outb(unsigned char b, unsigned long addr)
+{
+	*(volatile unsigned char *)addr = b;
+}
+
+static inline void ctrl_outw(unsigned short b, unsigned long addr)
+{
+	*(volatile unsigned short *)addr = b;
+}
+
+static inline void ctrl_outl(unsigned long b, unsigned long addr)
+{
+	*(volatile unsigned long *)addr = b;
+}
+
+static inline void ctrl_bclr(int b, unsigned long addr)
+{
+	if (__builtin_constant_p(b))
+		__asm__("bclr %1,%0" : : "WU"(addr), "i"(b));
+	else
+		__asm__("bclr %w1,%0" : : "WU"(addr), "r"(b));
+}
+
+static inline void ctrl_bset(int b, unsigned long addr)
+{
+	if (__builtin_constant_p(b))
+		__asm__("bset %1,%0" : : "WU"(addr), "i"(b));
+	else
+		__asm__("bset %w1,%0" : : "WU"(addr), "r"(b));
+}
+
+/*
+ * Macros used for converting between virtual and physical mappings.
+ */
+#define phys_to_virt(vaddr)	((void *) (vaddr))
+#define virt_to_phys(vaddr)	((unsigned long) (vaddr))
+
+#define virt_to_bus virt_to_phys
+#define bus_to_virt phys_to_virt
+/*
+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
+ * access
+ */
+#define xlate_dev_mem_ptr(p)	__va(p)
+
+/*
+ * Convert a virtual cached pointer to an uncached pointer
+ */
+#define xlate_dev_kmem_ptr(p)	(p)
+
+#endif /* __KERNEL__ */
+
+#endif /* _H8300_IO_H */
diff --git a/arch/h8300/include/asm/irq.h b/arch/h8300/include/asm/irq.h
new file mode 100644
index 0000000..69f23f0
--- /dev/null
+++ b/arch/h8300/include/asm/irq.h
@@ -0,0 +1,26 @@
+#ifndef _H8300_IRQ_H_
+#define _H8300_IRQ_H_
+
+#include <linux/irqchip.h>
+
+#if defined(CONFIG_CPU_H8300H)
+#define NR_IRQS 64
+#define IRQ_CHIP h8300h_irq_chip
+#define EXT_IRQ0 12
+#define EXT_IRQS 6
+#elif defined(CONFIG_CPU_H8S)
+#define NR_IRQS 128
+#define IRQ_CHIP h8s_irq_chip
+#define EXT_IRQ0 16
+#define EXT_IRQS 16
+#endif
+
+static inline int irq_canonicalize(int irq)
+{
+	return irq;
+}
+
+void h8300_init_ipr(void);
+extern struct irq_chip h8300h_irq_chip;
+extern struct irq_chip h8s_irq_chip;
+#endif /* _H8300_IRQ_H_ */
diff --git a/arch/h8300/include/asm/irqflags.h b/arch/h8300/include/asm/irqflags.h
new file mode 100644
index 0000000..5e1e324
--- /dev/null
+++ b/arch/h8300/include/asm/irqflags.h
@@ -0,0 +1,96 @@
+#ifndef _H8300_IRQFLAGS_H
+#define _H8300_IRQFLAGS_H
+
+#ifdef CONFIG_CPU_H8300H
+typedef unsigned char h8300flags;
+
+static inline h8300flags arch_local_save_flags(void)
+{
+	h8300flags flags;
+
+	__asm__ volatile ("stc ccr,%w0" : "=r" (flags));
+	return flags;
+}
+
+static inline void arch_local_irq_disable(void)
+{
+	__asm__ volatile ("orc  #0xc0,ccr");
+}
+
+static inline void arch_local_irq_enable(void)
+{
+	__asm__ volatile ("andc #0x3f,ccr");
+}
+
+static inline h8300flags arch_local_irq_save(void)
+{
+	h8300flags flags;
+
+	__asm__ volatile ("stc ccr,%w0\n\t"
+		      "orc  #0xc0,ccr" : "=r" (flags));
+	return flags;
+}
+
+static inline void arch_local_irq_restore(h8300flags flags)
+{
+	__asm__ volatile ("ldc %w0,ccr" : : "r" (flags) : "cc");
+}
+
+static inline int arch_irqs_disabled_flags(unsigned long flags)
+{
+	return (flags & 0xc0) == 0xc0;
+}
+#endif
+#ifdef CONFIG_CPU_H8S
+typedef unsigned short h8300flags;
+
+static inline h8300flags arch_local_save_flags(void)
+{
+	h8300flags flags;
+
+	__asm__ volatile ("stc ccr,%w0\n\tstc exr,%x0" : "=r" (flags));
+	return flags;
+}
+
+static inline void arch_local_irq_disable(void)
+{
+	__asm__ volatile ("orc #0x80,ccr\n\t");
+}
+
+static inline void arch_local_irq_enable(void)
+{
+	__asm__ volatile ("andc #0x7f,ccr\n\t"
+		      "andc #0xf0,exr\n\t");
+}
+
+static inline h8300flags arch_local_irq_save(void)
+{
+	h8300flags flags;
+
+	__asm__ volatile ("stc ccr,%w0\n\t"
+		      "stc exr,%x0\n\t"
+		      "orc  #0x80,ccr\n\t"
+		      : "=r" (flags));
+	return flags;
+}
+
+static inline void arch_local_irq_restore(h8300flags flags)
+{
+	__asm__ volatile ("ldc %w0,ccr\n\t"
+		      "ldc %x0,exr"
+		      : : "r" (flags) : "cc");
+}
+
+static inline int arch_irqs_disabled_flags(h8300flags flags)
+{
+	return (flags & 0x0080) == 0x0080;
+}
+
+#endif
+
+static inline int arch_irqs_disabled(void)
+{
+	return arch_irqs_disabled_flags(arch_local_save_flags());
+}
+
+#endif /* _H8300_IRQFLAGS_H */
diff --git a/arch/h8300/include/asm/mc146818rtc.h b/arch/h8300/include/asm/mc146818rtc.h
new file mode 100644
index 0000000..ab9d964
--- /dev/null
+++ b/arch/h8300/include/asm/mc146818rtc.h
@@ -0,0 +1,9 @@
+/*
+ * Machine dependent access functions for RTC registers.
+ */
+#ifndef _H8300_MC146818RTC_H
+#define _H8300_MC146818RTC_H
+
+/* empty include file to satisfy the include in genrtc.c/ide-geometry.c */
+
+#endif /* _H8300_MC146818RTC_H */
diff --git a/arch/h8300/include/asm/mutex.h b/arch/h8300/include/asm/mutex.h
new file mode 100644
index 0000000..458c1f7
--- /dev/null
+++ b/arch/h8300/include/asm/mutex.h
@@ -0,0 +1,9 @@
+/*
+ * Pull in the generic implementation for the mutex fastpath.
+ *
+ * TODO: implement optimized primitives instead, or leave the generic
+ * implementation in place, or pick the atomic_xchg() based generic
+ * implementation. (see asm-generic/mutex-xchg.h for details)
+ */
+
+#include <asm-generic/mutex-dec.h>
diff --git a/arch/h8300/include/asm/page.h b/arch/h8300/include/asm/page.h
new file mode 100644
index 0000000..3a987a5
--- /dev/null
+++ b/arch/h8300/include/asm/page.h
@@ -0,0 +1,18 @@
+#ifndef _H8300_PAGE_H
+#define _H8300_PAGE_H
+
+#include <asm-generic/page.h>
+#include <linux/types.h>
+
+#define MAP_NR(addr) (((uintptr_t)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)
+#define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
+				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+
+#ifndef __ASSEMBLY__
+extern unsigned long rom_length;
+extern unsigned long memory_start;
+extern unsigned long memory_end;
+extern unsigned long _ramend;
+#endif
+
+#endif
diff --git a/arch/h8300/include/asm/page_offset.h b/arch/h8300/include/asm/page_offset.h
new file mode 100644
index 0000000..888576d
--- /dev/null
+++ b/arch/h8300/include/asm/page_offset.h
@@ -0,0 +1,2 @@
+
+#define PAGE_OFFSET_RAW		0x00000000
diff --git a/arch/h8300/include/asm/pci.h b/arch/h8300/include/asm/pci.h
new file mode 100644
index 0000000..0b2acaa
--- /dev/null
+++ b/arch/h8300/include/asm/pci.h
@@ -0,0 +1,19 @@
+#ifndef _ASM_H8300_PCI_H
+#define _ASM_H8300_PCI_H
+
+/*
+ * asm-h8300/pci.h - H8/300 specific PCI declarations.
+ *
+ * Yoshinori Sato <ysato@users.sourceforge.jp>
+ */
+
+#define pcibios_assign_all_busses()	0
+
+static inline void pcibios_penalize_isa_irq(int irq, int active)
+{
+	/* We don't do dynamic PCI IRQ allocation */
+}
+
+#define PCI_DMA_BUS_IS_PHYS	(1)
+
+#endif /* _ASM_H8300_PCI_H */
diff --git a/arch/h8300/include/asm/pgtable.h b/arch/h8300/include/asm/pgtable.h
new file mode 100644
index 0000000..8341db6
--- /dev/null
+++ b/arch/h8300/include/asm/pgtable.h
@@ -0,0 +1,49 @@
+#ifndef _H8300_PGTABLE_H
+#define _H8300_PGTABLE_H
+#include <asm-generic/pgtable-nopud.h>
+#include <asm-generic/pgtable.h>
+#define pgtable_cache_init()   do { } while (0)
+extern void paging_init(void);
+#define PAGE_NONE		__pgprot(0)    /* these mean nothing to NO_MM */
+#define PAGE_SHARED		__pgprot(0)    /* these mean nothing to NO_MM */
+#define PAGE_COPY		__pgprot(0)    /* these mean nothing to NO_MM */
+#define PAGE_READONLY	__pgprot(0)    /* these mean nothing to NO_MM */
+#define PAGE_KERNEL		__pgprot(0)    /* these mean nothing to NO_MM */
+#define __swp_type(x)		(0)
+#define __swp_offset(x)		(0)
+#define __swp_entry(typ, off)	((swp_entry_t) { ((typ) | ((off) << 7)) })
+#define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) })
+#define __swp_entry_to_pte(x)	((pte_t) { (x).val })
+#define kern_addr_valid(addr)	(1)
+#define pgprot_writecombine(prot)  (prot)
+#define pgprot_noncached pgprot_writecombine
+
+static inline int pte_file(pte_t pte) { return 0; }
+#define swapper_pg_dir ((pgd_t *) 0)
+/*
+ * ZERO_PAGE is a global shared page that is always zero: used
+ * for zero-mapped memory areas etc..
+ */
+#define ZERO_PAGE(vaddr)	(virt_to_page(0))
+
+/*
+ * These would be in other places but having them here reduces the diffs.
+ */
+extern unsigned int kobjsize(const void *objp);
+extern int is_in_rom(unsigned long);
+
+/*
+ * No page table caches to initialise
+ */
+#define pgtable_cache_init()   do { } while (0)
+
+/*
+ * All 32bit addresses are effectively valid for vmalloc...
+ * Sort of meaningless for non-VM targets.
+ */
+#define	VMALLOC_START	0
+#define	VMALLOC_END	0xffffffff
+
+#define arch_enter_lazy_cpu_mode()    do {} while (0)
+
+#endif /* _H8300_PGTABLE_H */
diff --git a/arch/h8300/include/asm/processor.h b/arch/h8300/include/asm/processor.h
new file mode 100644
index 0000000..54e3fd8
--- /dev/null
+++ b/arch/h8300/include/asm/processor.h
@@ -0,0 +1,144 @@
+/*
+ * include/asm-h8300/processor.h
+ *
+ * Copyright (C) 2002 Yoshinori Sato
+ *
+ * Based on: linux/asm-m68nommu/processor.h
+ *
+ * Copyright (C) 1995 Hamish Macdonald
+ */
+
+#ifndef __ASM_H8300_PROCESSOR_H
+#define __ASM_H8300_PROCESSOR_H
+
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter").
+ */
+#define current_text_addr() ({ __label__ _l; _l: &&_l; })
+
+#include <linux/compiler.h>
+#include <asm/segment.h>
+#include <asm/ptrace.h>
+#include <asm/current.h>
+
+static inline unsigned long rdusp(void)
+{
+	extern unsigned int	_sw_usp;
+
+	return _sw_usp;
+}
+
+static inline void wrusp(unsigned long usp)
+{
+	extern unsigned int	_sw_usp;
+
+	_sw_usp = usp;
+}
+
+/*
+ * User space process size: 3.75GB. This is hardcoded into a few places,
+ * so don't change it unless you know what you are doing.
+ */
+#define TASK_SIZE	(0xFFFFFFFFUL)
+
+#ifdef __KERNEL__
+#define STACK_TOP	TASK_SIZE
+#define STACK_TOP_MAX	STACK_TOP
+#endif
+
+/*
+ * This decides where the kernel will search for a free chunk of vm
+ * space during mmap's. We won't be using it
+ */
+#define TASK_UNMAPPED_BASE	0
+
+struct thread_struct {
+	unsigned long  ksp;		/* kernel stack pointer */
+	unsigned long  usp;		/* user stack pointer */
+	unsigned long  ccr;		/* saved status register */
+	unsigned long  esp0;            /* points to SR of stack frame */
+	struct {
+		unsigned short *addr;
+		unsigned short inst;
+	} breakinfo;
+};
+
+#define INIT_THREAD  {						\
+	.ksp  = sizeof(init_stack) + (unsigned long)init_stack, \
+	.usp  = 0,						\
+	.ccr  = PS_S,						\
+	.esp0 = 0,						\
+	.breakinfo = {						\
+		.addr = (unsigned short *)-1,			\
+		.inst = 0					\
+	}							\
+}
+
+/*
+ * Do necessary setup to start up a newly executed thread.
+ *
+ * pass the data segment into user programs if it exists,
+ * it can't hurt anything as far as I can tell
+ */
+#if defined(CONFIG_CPU_H8300H)
+#define start_thread(_regs, _pc, _usp)				\
+do {								\
+	(_regs)->pc = (_pc);					\
+	(_regs)->ccr = 0x00;	   /* clear all flags */	\
+	(_regs)->er5 = current->mm->start_data;	/* GOT base */	\
+	(_regs)->sp = ((unsigned long)(_usp)) - sizeof(unsigned long) * 3; \
+} while (0)
+#endif
+#if defined(CONFIG_CPU_H8S)
+#define start_thread(_regs, _pc, _usp)				\
+do {								\
+	(_regs)->pc = (_pc);					\
+	(_regs)->ccr = 0x00;	   /* clear kernel flag */	\
+	(_regs)->exr = 0x78;	   /* enable all interrupts */	\
+	(_regs)->er5 = current->mm->start_data;	/* GOT base */	\
+	/* 14 = space for retaddr(4), vector(4), er0(4) and exr(2) on stack */ \
+	(_regs)->sp = ((unsigned long)(_usp)) - 14;		\
+} while (0)
+#endif
+
+/* Forward declaration, a strange C thing */
+struct task_struct;
+
+/* Free all resources held by a thread. */
+static inline void release_thread(struct task_struct *dead_task)
+{
+}
+
+/*
+ * Free current thread data structures etc..
+ */
+static inline void exit_thread(void)
+{
+}
+
+/*
+ * Return saved PC of a blocked thread.
+ */
+unsigned long thread_saved_pc(struct task_struct *tsk);
+unsigned long get_wchan(struct task_struct *p);
+
+#define	KSTK_EIP(tsk)	\
+	({			 \
+		unsigned long eip = 0;	      \
+		if ((tsk)->thread.esp0 > PAGE_SIZE &&	\
+		    MAP_NR((tsk)->thread.esp0) < max_mapnr)	 \
+			eip = ((struct pt_regs *) (tsk)->thread.esp0)->pc; \
+		eip; })
+
+#define	KSTK_ESP(tsk)	((tsk) == current ? rdusp() : (tsk)->thread.usp)
+
+#define cpu_relax()    barrier()
+#define cpu_relax_lowlatency()	cpu_relax()
+
+#define HARD_RESET_NOW() ({		\
+	local_irq_disable();		\
+	asm("jmp @@0");			\
+})
+
+#endif
diff --git a/arch/h8300/include/asm/ptrace.h b/arch/h8300/include/asm/ptrace.h
new file mode 100644
index 0000000..e693fb4
--- /dev/null
+++ b/arch/h8300/include/asm/ptrace.h
@@ -0,0 +1,36 @@
+#ifndef _H8300_PTRACE_H
+#define _H8300_PTRACE_H
+
+#include <uapi/asm/ptrace.h>
+
+#ifndef __ASSEMBLY__
+#ifndef PS_S
+#define PS_S  (0x10)
+#endif
+
+#if defined(CONFIG_CPU_H8300H)
+#define H8300_REGS_NO 11
+#endif
+#if defined(CONFIG_CPU_H8S)
+#define H8300_REGS_NO 12
+#endif
+
+#define arch_has_single_step()	(1)
+
+#define user_mode(regs) (!((regs)->ccr & PS_S))
+#define instruction_pointer(regs) ((regs)->pc)
+#define profile_pc(regs) instruction_pointer(regs)
+#define user_stack_pointer(regs) ((regs)->sp)
+#define current_pt_regs() ((struct pt_regs *) \
+	(THREAD_SIZE + (unsigned long)current_thread_info()) - 1)
+#define signal_pt_regs() ((struct pt_regs *)current->thread.esp0)
+#define current_user_stack_pointer() rdusp()
+#define task_pt_regs(task) \
+	((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE) - 1)
+
+extern long h8300_get_reg(struct task_struct *task, int regno);
+extern int h8300_put_reg(struct task_struct *task, int regno,
+			 unsigned long data);
+
+#endif /* __ASSEMBLY__ */
+#endif /* _H8300_PTRACE_H */
diff --git a/arch/h8300/include/asm/segment.h b/arch/h8300/include/asm/segment.h
new file mode 100644
index 0000000..c8bc68e
--- /dev/null
+++ b/arch/h8300/include/asm/segment.h
@@ -0,0 +1,49 @@
+#ifndef _H8300_SEGMENT_H
+#define _H8300_SEGMENT_H
+
+/* define constants */
+#define USER_DATA     (1)
+#ifndef __USER_DS
+#define __USER_DS     (USER_DATA)
+#endif
+#define USER_PROGRAM  (2)
+#define SUPER_DATA    (3)
+#ifndef __KERNEL_DS
+#define __KERNEL_DS   (SUPER_DATA)
+#endif
+#define SUPER_PROGRAM (4)
+
+#ifndef __ASSEMBLY__
+
+typedef struct {
+	unsigned long seg;
+} mm_segment_t;
+
+#define MAKE_MM_SEG(s)	((mm_segment_t) { (s) })
+#define USER_DS		MAKE_MM_SEG(__USER_DS)
+#define KERNEL_DS	MAKE_MM_SEG(__KERNEL_DS)
+
+/*
+ * Get/set the SFC/DFC registers for MOVES instructions
+ */
+
+static inline mm_segment_t get_fs(void)
+{
+	return USER_DS;
+}
+
+static inline mm_segment_t get_ds(void)
+{
+	/* return the supervisor data space code */
+	return KERNEL_DS;
+}
+
+static inline void set_fs(mm_segment_t val)
+{
+}
+
+#define segment_eq(a, b)	((a).seg == (b).seg)
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _H8300_SEGMENT_H */
diff --git a/arch/h8300/include/asm/sh_bios.h b/arch/h8300/include/asm/sh_bios.h
new file mode 100644
index 0000000..9ce513c
--- /dev/null
+++ b/arch/h8300/include/asm/sh_bios.h
@@ -0,0 +1,4 @@
+#ifndef SH_BIOS_H
+#define SH_BIOS_H
+
+#endif
diff --git a/arch/h8300/include/asm/signal.h b/arch/h8300/include/asm/signal.h
new file mode 100644
index 0000000..5870835
--- /dev/null
+++ b/arch/h8300/include/asm/signal.h
@@ -0,0 +1,22 @@
+#ifndef _H8300_SIGNAL_H
+#define _H8300_SIGNAL_H
+
+#include <uapi/asm/signal.h>
+
+/* Most things should be clean enough to redefine this at will, if care
+   is taken to make libc match.  */
+
+#define _NSIG		64
+#define _NSIG_BPW	32
+#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
+
+typedef unsigned long old_sigset_t;		/* at least 32 bits */
+
+typedef struct {
+	unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+#define __ARCH_HAS_SA_RESTORER
+#include <asm/sigcontext.h>
+
+#endif /* _H8300_SIGNAL_H */
diff --git a/arch/h8300/include/asm/smp.h b/arch/h8300/include/asm/smp.h
new file mode 100644
index 0000000..9e9bd7e
--- /dev/null
+++ b/arch/h8300/include/asm/smp.h
@@ -0,0 +1 @@
+/* nothing required here yet */
diff --git a/arch/h8300/include/asm/spinlock.h b/arch/h8300/include/asm/spinlock.h
new file mode 100644
index 0000000..d5407fa
--- /dev/null
+++ b/arch/h8300/include/asm/spinlock.h
@@ -0,0 +1,6 @@
+#ifndef __H8300_SPINLOCK_H
+#define __H8300_SPINLOCK_H
+
+#error "H8/300 doesn't do SMP yet"
+
+#endif
diff --git a/arch/h8300/include/asm/string.h b/arch/h8300/include/asm/string.h
new file mode 100644
index 0000000..5dc5a8a
--- /dev/null
+++ b/arch/h8300/include/asm/string.h
@@ -0,0 +1,17 @@
+#ifndef _H8300_STRING_H_
+#define _H8300_STRING_H_
+
+#ifdef __KERNEL__ /* only set these up for kernel code */
+
+#include <asm/setup.h>
+#include <asm/page.h>
+
+#define __HAVE_ARCH_MEMSET
+extern void *memset(void *s, int c, size_t count);
+
+#define __HAVE_ARCH_MEMCPY
+extern void *memcpy(void *d, const void *s, size_t count);
+
+#endif /* KERNEL */
+
+#endif
diff --git a/arch/h8300/include/asm/switch_to.h b/arch/h8300/include/asm/switch_to.h
new file mode 100644
index 0000000..7ad1bf9
--- /dev/null
+++ b/arch/h8300/include/asm/switch_to.h
@@ -0,0 +1,51 @@
+#ifndef _H8300_SWITCH_TO_H
+#define _H8300_SWITCH_TO_H
+
+/*
+ * switch_to(n) should switch tasks to task ptr, first checking that
+ * ptr isn't the current task, in which case it does nothing.  This
+ * also clears the TS-flag if the task we switched to has used the
+ * math co-processor latest.
+ */
+/*
+ * switch_to() saves the extra registers, that are not saved
+ * automatically by SAVE_SWITCH_STACK in resume(), ie. d0-d5 and
+ * a0-a1. Some of these are used by schedule() and its predecessors
+ * and so we might get see unexpected behaviors when a task returns
+ * with unexpected register values.
+ *
+ * syscall stores these registers itself and none of them are used
+ * by syscall after the function in the syscall has been called.
+ *
+ * Beware that resume now expects *next to be in d1 and the offset of
+ * tss to be in a1. This saves a few instructions as we no longer have
+ * to push them onto the stack and read them back right after.
+ *
+ * 02/17/96 - Jes Sorensen (jds@kom.auc.dk)
+ *
+ * Changed 96/09/19 by Andreas Schwab
+ * pass prev in a0, next in a1, offset of tss in d1, and whether
+ * the mm structures are shared in d2 (to avoid atc flushing).
+ *
+ * H8/300 Porting 2002/09/04 Yoshinori Sato
+ */
+
+asmlinkage void resume(void);
+#define switch_to(prev, next, last) \
+do {			     \
+	void *_last;					    \
+	__asm__ __volatile__(				    \
+		"mov.l	%1, er0\n\t"			    \
+		"mov.l	%2, er1\n\t"			    \
+		"mov.l	%3, er2\n\t"			    \
+		"jsr @_resume\n\t"			    \
+		"mov.l	er2,%0\n\t"			    \
+		: "=r" (_last)				    \
+		: "r" (&(prev->thread)),		    \
+		  "r" (&(next->thread)),		    \
+		  "g" (prev)				    \
+		: "cc", "er0", "er1", "er2", "er3");	    \
+	(last) = _last;					    \
+} while (0)
+
+#endif /* _H8300_SWITCH_TO_H */
diff --git a/arch/h8300/include/asm/syscall.h b/arch/h8300/include/asm/syscall.h
new file mode 100644
index 0000000..b41f688
--- /dev/null
+++ b/arch/h8300/include/asm/syscall.h
@@ -0,0 +1,56 @@
+#ifndef __ASM_H8300_SYSCALLS_32_H
+#define __ASM_H8300_SYSCALLS_32_H
+
+#ifdef __KERNEL__
+
+#include <linux/compiler.h>
+#include <linux/linkage.h>
+#include <linux/types.h>
+#include <linux/ptrace.h>
+
+static inline int
+syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
+{
+	return regs->orig_er0;
+}
+
+static inline void
+syscall_get_arguments(struct task_struct *task, struct pt_regs *regs,
+		      unsigned int i, unsigned int n, unsigned long *args)
+{
+	BUG_ON(i + n > 6);
+
+	while (n > 0) {
+		switch (i) {
+		case 0:
+			*args++ = regs->er1;
+			break;
+		case 1:
+			*args++ = regs->er2;
+			break;
+		case 2:
+			*args++ = regs->er3;
+			break;
+		case 3:
+			*args++ = regs->er4;
+			break;
+		case 4:
+			*args++ = regs->er5;
+			break;
+		case 5:
+			*args++ = regs->er6;
+			break;
+		}
+		i++;
+		n--;
+	}
+}
+
+
+
+/* Misc syscall related bits */
+asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
+asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
+
+#endif /* __KERNEL__ */
+#endif /* __ASM_H8300_SYSCALLS_32_H */
diff --git a/arch/h8300/include/asm/thread_info.h b/arch/h8300/include/asm/thread_info.h
new file mode 100644
index 0000000..eded1ee
--- /dev/null
+++ b/arch/h8300/include/asm/thread_info.h
@@ -0,0 +1,119 @@
+/* thread_info.h: h8300 low-level thread information
+ * adapted from the i386 and PPC versions by Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ * Copyright (C) 2002  David Howells (dhowells@redhat.com)
+ * - Incorporating suggestions made by Linus Torvalds and Dave Miller
+ */
+
+#ifndef _ASM_THREAD_INFO_H
+#define _ASM_THREAD_INFO_H
+
+#include <asm/page.h>
+
+#ifdef __KERNEL__
+
+#ifndef __ASSEMBLY__
+
+/*
+ * low level task data.
+ * If you change this, change the TI_* offsets below to match.
+ */
+struct thread_info {
+	struct task_struct *task;		/* main task structure */
+	struct exec_domain *exec_domain;	/* execution domain */
+	unsigned long	   flags;		/* low level flags */
+	int		   cpu;			/* cpu we're on */
+	int		   preempt_count;	/* 0 => preemptable, <0 => BUG */
+	struct restart_block restart_block;
+};
+
+/*
+ * macros/functions for gaining access to the thread information structure
+ */
+#define INIT_THREAD_INFO(tsk)			\
+{						\
+	.task =		&tsk,			\
+	.exec_domain =	&default_exec_domain,	\
+	.flags =	0,			\
+	.cpu =		0,			\
+	.preempt_count = INIT_PREEMPT_COUNT,	\
+	.restart_block	= {			\
+		.fn = do_no_restart_syscall,	\
+	},					\
+}
+
+#define init_thread_info	(init_thread_union.thread_info)
+#define init_stack		(init_thread_union.stack)
+
+
+/*
+ * Size of kernel stack for each process. This must be a power of 2...
+ */
+#define THREAD_SIZE_ORDER	1
+#define THREAD_SIZE		8192	/* 2 pages */
+
+
+/* how to get the thread information struct from C */
+static inline struct thread_info *current_thread_info(void)
+{
+	struct thread_info *ti;
+
+	__asm__("mov.l	sp, %0\n\t"
+		"and.w	%1, %T0"
+		: "=&r"(ti)
+		: "i" (~(THREAD_SIZE-1) & 0xffff));
+	return ti;
+}
+
+#endif /* __ASSEMBLY__ */
+
+/*
+ * Offsets in thread_info structure, used in assembly code
+ */
+#define TI_TASK		0
+#define TI_EXECDOMAIN	4
+#define TI_FLAGS	8
+#define TI_CPU		12
+#define TI_PRE_COUNT	16
+
+/*
+ * thread information flag bit numbers
+ */
+#define TIF_SYSCALL_TRACE	0	/* syscall trace active */
+#define TIF_SIGPENDING		1	/* signal pending */
+#define TIF_NEED_RESCHED	2	/* rescheduling necessary */
+#define TIF_SINGLESTEP		3	/* singlestepping active */
+#define TIF_MEMDIE		4	/* is terminating due to OOM killer */
+#define TIF_RESTORE_SIGMASK	5	/* restore signal mask in do_signal() */
+#define TIF_NOTIFY_RESUME	6	/* callback before returning to user */
+#define TIF_SYSCALL_AUDIT	7	/* syscall auditing active */
+#define TIF_SYSCALL_TRACEPOINT	8	/* for ftrace syscall instrumentation */
+#define TIF_POLLING_NRFLAG	9	/* true if poll_idle() is polling TIF_NEED_RESCHED */
+
+/* as above, but as bit values */
+#define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
+#define _TIF_SIGPENDING		(1 << TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)
+#define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
+#define _TIF_SINGLESTEP		(1 << TIF_SINGLESTEP)
+#define _TIF_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)
+#define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
+#define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)
+
+/* work to do in syscall trace */
+#define _TIF_WORK_SYSCALL_MASK	(_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \
+				 _TIF_SYSCALL_AUDIT | _TIF_SYSCALL_TRACEPOINT)
+
+/* work to do on any return to u-space */
+#define _TIF_ALLWORK_MASK	(_TIF_SYSCALL_TRACE | _TIF_SIGPENDING      | \
+				 _TIF_NEED_RESCHED  | _TIF_SYSCALL_AUDIT   | \
+				 _TIF_SINGLESTEP    | _TIF_NOTIFY_RESUME   | \
+				 _TIF_SYSCALL_TRACEPOINT)
+
+/* work to do on interrupt/exception return */
+#define _TIF_WORK_MASK		(_TIF_ALLWORK_MASK & ~(_TIF_SYSCALL_TRACE | \
+				 _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP))
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_THREAD_INFO_H */
diff --git a/arch/h8300/include/asm/timer.h b/arch/h8300/include/asm/timer.h
new file mode 100644
index 0000000..c905f4e
--- /dev/null
+++ b/arch/h8300/include/asm/timer.h
@@ -0,0 +1,31 @@
+#ifndef __H8300_TIMER_H
+#define __H8300_TIMER_H
+
+unsigned long get_cpu_clock(void);
+
+#define H8300_TIMER_FREQ get_cpu_clock() /* Timer input freq. */
+
+#define H8300_TMR8_CLKSRC    0
+#define H8300_TMR8_CLKEVTDEV 1
+
+#define H8300_TMR8_DIV_8 0
+#define H8300_TMR8_DIV_64 1
+#define H8300_TMR8_DIV_8192 2
+
+struct h8300_timer8_config {
+	int mode;
+	int div;
+	int rating;
+};
+
+struct h8300_timer16_config {
+	int rating;
+	__u8 enb;
+	__u8 imfa;
+	__u8 imiea;
+};
+
+struct h8300_tpu_config {
+	int rating;
+};
+#endif
diff --git a/arch/h8300/include/asm/tlb.h b/arch/h8300/include/asm/tlb.h
new file mode 100644
index 0000000..2c6fa4ee
--- /dev/null
+++ b/arch/h8300/include/asm/tlb.h
@@ -0,0 +1,8 @@
+#ifndef __H8300_TLB_H__
+#define __H8300_TLB_H__
+
+#define tlb_flush(tlb)	do { } while (0)
+
+#include <asm-generic/tlb.h>
+
+#endif
diff --git a/arch/h8300/include/asm/topology.h b/arch/h8300/include/asm/topology.h
new file mode 100644
index 0000000..fdc1219
--- /dev/null
+++ b/arch/h8300/include/asm/topology.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_H8300_TOPOLOGY_H
+#define _ASM_H8300_TOPOLOGY_H
+
+#include <asm-generic/topology.h>
+
+#endif /* _ASM_H8300_TOPOLOGY_H */
diff --git a/arch/h8300/include/asm/traps.h b/arch/h8300/include/asm/traps.h
new file mode 100644
index 0000000..aa34e75
--- /dev/null
+++ b/arch/h8300/include/asm/traps.h
@@ -0,0 +1,41 @@
+/*
+ *  linux/include/asm-h8300/traps.h
+ *
+ *  Copyright (C) 2003 Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _H8300_TRAPS_H
+#define _H8300_TRAPS_H
+
+extern void _system_call(void);
+extern void _interrupt_entry(void);
+extern void _trace_break(void);
+extern void _nmi(void);
+extern void _interrupt_entry(void);
+
+extern unsigned long *_interrupt_redirect_table;
+
+#define JMP_OP 0x5a000000
+#define JSR_OP 0x5e000000
+#define VECTOR(address) ((JMP_OP)|((unsigned long)address))
+#define REDIRECT(address) ((JSR_OP)|((unsigned long)address))
+#define CPU_VECTOR ((unsigned long *)0x000000)
+#define ADDR_MASK (0xffffff)
+
+#define TRACE_VEC 5
+
+#define TRAP0_VEC 8
+#define TRAP1_VEC 9
+#define TRAP2_VEC 10
+#define TRAP3_VEC 11
+
+extern char _start, _etext;
+#define check_kernel_text(addr) \
+	((addr >= (unsigned long)(&_start)) && \
+	 (addr <  (unsigned long)(&_etext)))
+
+#endif /* _H8300_TRAPS_H */
diff --git a/arch/h8300/include/asm/uaccess.h b/arch/h8300/include/asm/uaccess.h
new file mode 100644
index 0000000..a3b6b18
--- /dev/null
+++ b/arch/h8300/include/asm/uaccess.h
@@ -0,0 +1,136 @@
+#ifndef __H8300_UACCESS_H
+#define __H8300_UACCESS_H
+
+/*
+ * User space memory access functions
+ */
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+
+#include <asm/segment.h>
+
+#define VERIFY_READ	0
+#define VERIFY_WRITE	1
+
+/* We let the MMU do all checking */
+#define access_ok(type, addr, size) __access_ok((unsigned long)addr, size)
+static inline int __access_ok(unsigned long addr, unsigned long size)
+{
+#define	RANGE_CHECK_OK(addr, size, lower, upper) \
+	(((addr) >= (lower)) && (((addr) + (size)) < (upper)))
+
+	extern unsigned long  memory_end;
+
+	return RANGE_CHECK_OK(addr, size, 0L, memory_end);
+}
+
+/*
+ * The exception table consists of pairs of addresses: the first is the
+ * address of an instruction that is allowed to fault, and the second is
+ * the address at which the program should continue.  No registers are
+ * modified, so it is entirely up to the continuation code to figure out
+ * what to do.
+ *
+ * All the routines below use bits of fixup code that are out of line
+ * with the main instruction path.  This means when everything is well,
+ * we don't even have to jump over them.  Further, they do not intrude
+ * on our cache or tlb entries.
+ */
+
+struct exception_table_entry {
+	unsigned long insn, fixup;
+};
+
+/* Returns 0 if exception not found and fixup otherwise.  */
+extern unsigned long search_exception_table(unsigned long);
+
+
+/*
+ * These are the main single-value transfer routines.  They automatically
+ * use the right size if we just have the right pointer type.
+ */
+
+#define put_user(x, ptr)				\
+({							\
+	int __pu_err = 0;				\
+	typeof(*(ptr)) __pu_val = (x);			\
+	switch (sizeof(*(ptr))) {			\
+	case 1:						\
+	/* falll through */ \
+	case 2:						\
+	/* fall through */ \
+	case 4:						\
+		*(ptr) = x;				\
+		break;					\
+	case 8:						\
+		memcpy(ptr, &__pu_val, sizeof(*(ptr))); \
+		break;					\
+	default:					\
+		__pu_err = __put_user_bad();		\
+		break;					\
+	}						\
+	__pu_err;					\
+})
+
+#define __put_user(x, ptr) put_user(x, ptr)
+
+extern int __put_user_bad(void);
+
+/*
+ * Tell gcc we read from memory instead of writing: this is because
+ * we do not write to any memory gcc knows about, so there are no
+ * aliasing issues.
+ */
+
+#define __ptr(x) ((unsigned long *)(x))
+
+/*
+ * Tell gcc we read from memory instead of writing: this is because
+ * we do not write to any memory gcc knows about, so there are no
+ * aliasing issues.
+ */
+
+#define get_user(x, ptr)					\
+({								\
+	typeof(*(ptr)) __gu_val;				\
+	int __gu_err = 0;					\
+	switch (sizeof(*(ptr))) {				\
+	case 1:							\
+		*(u8 *)&__gu_val = *((u8 *)(ptr));		\
+		break;						\
+	case 2:							\
+		*(u16 *)&__gu_val = *((u16 *)ptr);		\
+		break;						\
+	case 4:							\
+		*(u32 *)&__gu_val = *((u32 *)ptr);		\
+		break;						\
+	case 8:							\
+		memcpy((void *)&__gu_val, ptr, sizeof(*(ptr)));	\
+		break;						\
+	default:						\
+		__gu_err = __get_user_bad();			\
+		break;						\
+	}							\
+	(x) = (typeof(*(ptr)))__gu_val;				\
+	__gu_err;						\
+})
+#define __get_user(x, ptr) get_user(x, ptr)
+
+extern int __get_user_bad(void);
+
+#define copy_from_user(to, from, n)		(memcpy(to, from, n), 0)
+#define copy_to_user(to, from, n)		(memcpy(to, from, n), 0)
+
+#define __copy_from_user(to, from, n) copy_from_user(to, from, n)
+#define __copy_to_user(to, from, n) copy_to_user(to, from, n)
+#define __copy_to_user_inatomic __copy_to_user
+#define __copy_from_user_inatomic __copy_from_user
+
+unsigned long clear_user(void __user *addr, unsigned long size);
+#define strnlen_user(s, n) (strnlen(s, n) + 1)
+long strncpy_from_user(char *d, const char *s, long n);
+
+#define __clear_user	clear_user
+
+#endif /* _H8300_UACCESS_H */
diff --git a/arch/h8300/include/asm/unaligned.h b/arch/h8300/include/asm/unaligned.h
new file mode 100644
index 0000000..b8d06c7
--- /dev/null
+++ b/arch/h8300/include/asm/unaligned.h
@@ -0,0 +1,11 @@
+#ifndef _ASM_H8300_UNALIGNED_H
+#define _ASM_H8300_UNALIGNED_H
+
+#include <linux/unaligned/be_memmove.h>
+#include <linux/unaligned/le_byteshift.h>
+#include <linux/unaligned/generic.h>
+
+#define get_unaligned	__get_unaligned_be
+#define put_unaligned	__put_unaligned_be
+
+#endif /* _ASM_H8300_UNALIGNED_H */
diff --git a/arch/h8300/include/asm/user.h b/arch/h8300/include/asm/user.h
new file mode 100644
index 0000000..2e3555f
--- /dev/null
+++ b/arch/h8300/include/asm/user.h
@@ -0,0 +1,74 @@
+#ifndef _H8300_USER_H
+#define _H8300_USER_H
+
+#include <asm/page.h>
+
+/* Core file format: The core file is written in such a way that gdb
+   can understand it and provide useful information to the user (under
+   linux we use the 'trad-core' bfd).  There are quite a number of
+   obstacles to being able to view the contents of the floating point
+   registers, and until these are solved you will not be able to view the
+   contents of them.  Actually, you can read in the core file and look at
+   the contents of the user struct to find out what the floating point
+   registers contain.
+   The actual file contents are as follows:
+   UPAGE: 1 page consisting of a user struct that tells gdb what is present
+   in the file.  Directly after this is a copy of the task_struct, which
+   is currently not used by gdb, but it may come in useful at some point.
+   All of the registers are stored as part of the upage.  The upage should
+   always be only one page.
+   DATA: The data area is stored.  We use current->end_text to
+   current->brk to pick up all of the user variables, plus any memory
+   that may have been malloced.  No attempt is made to determine if a page
+   is demand-zero or if a page is totally unused, we just cover the entire
+   range.  All of the addresses are rounded in such a way that an integral
+   number of pages is written.
+   STACK: We need the stack information in order to get a meaningful
+   backtrace.  We need to write the data from (esp) to
+   current->start_stack, so we round each of these off in order to be able
+   to write an integer number of pages.
+   The minimum core file size is 3 pages, or 12288 bytes.
+*/
+
+/* This is the old layout of "struct pt_regs" as of Linux 1.x, and
+   is still the layout used by user (the new pt_regs doesn't have
+   all registers). */
+struct user_regs_struct {
+	long er1, er2, er3, er4, er5, er6;
+	long er0;
+	long usp;
+	long orig_er0;
+	long ccr;
+	long pc;
+};
+
+/* When the kernel dumps core, it starts by dumping the user struct -
+   this will be used by gdb to figure out where the data and stack segments
+   are within the file, and what virtual addresses to use. */
+struct user {
+/* We start with the registers, to mimic the way that "memory" is returned
+   from the ptrace(3,...) function.  */
+	struct user_regs_struct regs;	/* Where the registers are actually stored */
+/* ptrace does not yet supply these.  Someday.... */
+/* The rest of this junk is to help gdb figure out what goes where */
+	unsigned long int u_tsize;	/* Text segment size (pages). */
+	unsigned long int u_dsize;	/* Data segment size (pages). */
+	unsigned long int u_ssize;	/* Stack segment size (pages). */
+	unsigned long start_code;     /* Starting virtual address of text. */
+	unsigned long start_stack;	/* Starting virtual address of stack area.
+					   This is actually the bottom of the stack,
+					   the top of the stack is always found in the
+					   esp register.  */
+	long int signal;		/* Signal that caused the core dump. */
+	int reserved;			/* No longer used */
+	unsigned long u_ar0;		/* Used by gdb to help find the values for */
+	/* the registers. */
+	unsigned long magic;		/* To uniquely identify a core file */
+	char u_comm[32];		/* User command that was responsible */
+};
+#define NBPG PAGE_SIZE
+#define UPAGES 1
+#define HOST_TEXT_START_ADDR (u.start_code)
+#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
+
+#endif
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 02/16] h8300: UAPI headers
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
  2015-03-09  8:46 ` [PATCH v6 01/16] h8300: Assembly headers Yoshinori Sato
@ 2015-03-09  8:46 ` Yoshinori Sato
  2015-03-09  8:46 ` [PATCH v6 03/16] h8300: Exception and Interrupt handling Yoshinori Sato
                   ` (14 subsequent siblings)
  16 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:46 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 arch/h8300/include/uapi/asm/Kbuild       |  29 ++++++++
 arch/h8300/include/uapi/asm/auxvec.h     |   4 ++
 arch/h8300/include/uapi/asm/byteorder.h  |   6 ++
 arch/h8300/include/uapi/asm/ptrace.h     |  42 +++++++++++
 arch/h8300/include/uapi/asm/sigcontext.h |  18 +++++
 arch/h8300/include/uapi/asm/signal.h     | 115 +++++++++++++++++++++++++++++++
 arch/h8300/include/uapi/asm/swab.h       |   1 +
 arch/h8300/include/uapi/asm/unistd.h     |   3 +
 8 files changed, 218 insertions(+)
 create mode 100644 arch/h8300/include/uapi/asm/Kbuild
 create mode 100644 arch/h8300/include/uapi/asm/auxvec.h
 create mode 100644 arch/h8300/include/uapi/asm/byteorder.h
 create mode 100644 arch/h8300/include/uapi/asm/ptrace.h
 create mode 100644 arch/h8300/include/uapi/asm/sigcontext.h
 create mode 100644 arch/h8300/include/uapi/asm/signal.h
 create mode 100644 arch/h8300/include/uapi/asm/swab.h
 create mode 100644 arch/h8300/include/uapi/asm/unistd.h

diff --git a/arch/h8300/include/uapi/asm/Kbuild b/arch/h8300/include/uapi/asm/Kbuild
new file mode 100644
index 0000000..077e720
--- /dev/null
+++ b/arch/h8300/include/uapi/asm/Kbuild
@@ -0,0 +1,29 @@
+# UAPI Header export list
+include include/uapi/asm-generic/Kbuild.asm
+
+header-y += auxvec.h
+header-y += bitsperlong.h
+header-y += errno.h
+header-y += fcntl.h
+header-y += ioctl.h
+header-y += ioctls.h
+header-y += ipcbuf.h
+header-y += kvm_para.h
+header-y += mman.h
+header-y += msgbuf.h
+header-y += param.h
+header-y += poll.h
+header-y += posix_types.h
+header-y += resource.h
+header-y += sembuf.h
+header-y += setup.h
+header-y += shmbuf.h
+header-y += siginfo.h
+header-y += socket.h
+header-y += sockios.h
+header-y += stat.h
+header-y += statfs.h
+header-y += termbits.h
+header-y += termios.h
+header-y += types.h
+header-y += unistd.h
diff --git a/arch/h8300/include/uapi/asm/auxvec.h b/arch/h8300/include/uapi/asm/auxvec.h
new file mode 100644
index 0000000..1d36fe38
--- /dev/null
+++ b/arch/h8300/include/uapi/asm/auxvec.h
@@ -0,0 +1,4 @@
+#ifndef __ASMH8300_AUXVEC_H
+#define __ASMH8300_AUXVEC_H
+
+#endif
diff --git a/arch/h8300/include/uapi/asm/byteorder.h b/arch/h8300/include/uapi/asm/byteorder.h
new file mode 100644
index 0000000..13539da
--- /dev/null
+++ b/arch/h8300/include/uapi/asm/byteorder.h
@@ -0,0 +1,6 @@
+#ifndef _H8300_BYTEORDER_H
+#define _H8300_BYTEORDER_H
+
+#include <linux/byteorder/big_endian.h>
+
+#endif /* _H8300_BYTEORDER_H */
diff --git a/arch/h8300/include/uapi/asm/ptrace.h b/arch/h8300/include/uapi/asm/ptrace.h
new file mode 100644
index 0000000..e132670d
--- /dev/null
+++ b/arch/h8300/include/uapi/asm/ptrace.h
@@ -0,0 +1,42 @@
+#ifndef _UAPI_H8300_PTRACE_H
+#define _UAPI_H8300_PTRACE_H
+
+#ifndef __ASSEMBLY__
+
+#define PT_ER1	   0
+#define PT_ER2	   1
+#define PT_ER3	   2
+#define PT_ER4	   3
+#define PT_ER5	   4
+#define PT_ER6	   5
+#define PT_ER0	   6
+#define PT_USP	   7
+#define PT_ORIG_ER0	   8
+#define PT_CCR	   9
+#define PT_PC	   10
+#define PT_EXR     11
+
+/* this struct defines the way the registers are stored on the
+   stack during a system call. */
+
+struct pt_regs {
+	long     retpc;
+	long     er4;
+	long     er5;
+	long     er6;
+	long     er3;
+	long     er2;
+	long     er1;
+	long     orig_er0;
+	long	 sp;
+	unsigned short	 ccr;
+	long     er0;
+	long     vector;
+#if defined(__H8300S__)
+	unsigned short	 exr;
+#endif
+	unsigned long  pc;
+} __attribute__((aligned(2), packed));
+
+#endif /* __ASSEMBLY__ */
+#endif /* _UAPI_H8300_PTRACE_H */
diff --git a/arch/h8300/include/uapi/asm/sigcontext.h b/arch/h8300/include/uapi/asm/sigcontext.h
new file mode 100644
index 0000000..c41fdaa
--- /dev/null
+++ b/arch/h8300/include/uapi/asm/sigcontext.h
@@ -0,0 +1,18 @@
+#ifndef _ASM_H8300_SIGCONTEXT_H
+#define _ASM_H8300_SIGCONTEXT_H
+
+struct sigcontext {
+	unsigned long  sc_mask;		/* old sigmask */
+	unsigned long  sc_usp;		/* old user stack pointer */
+	unsigned long  sc_er0;
+	unsigned long  sc_er1;
+	unsigned long  sc_er2;
+	unsigned long  sc_er3;
+	unsigned long  sc_er4;
+	unsigned long  sc_er5;
+	unsigned long  sc_er6;
+	unsigned short sc_ccr;
+	unsigned long  sc_pc;
+};
+
+#endif
diff --git a/arch/h8300/include/uapi/asm/signal.h b/arch/h8300/include/uapi/asm/signal.h
new file mode 100644
index 0000000..af3a6c3
--- /dev/null
+++ b/arch/h8300/include/uapi/asm/signal.h
@@ -0,0 +1,115 @@
+#ifndef _UAPI_H8300_SIGNAL_H
+#define _UAPI_H8300_SIGNAL_H
+
+#include <linux/types.h>
+
+/* Avoid too many header ordering problems.  */
+struct siginfo;
+
+#ifndef __KERNEL__
+/* Here we must cater to libcs that poke about in kernel headers.  */
+
+#define NSIG		32
+typedef unsigned long sigset_t;
+
+#endif /* __KERNEL__ */
+
+#define SIGHUP		 1
+#define SIGINT		 2
+#define SIGQUIT		 3
+#define SIGILL		 4
+#define SIGTRAP		 5
+#define SIGABRT		 6
+#define SIGIOT		 6
+#define SIGBUS		 7
+#define SIGFPE		 8
+#define SIGKILL		 9
+#define SIGUSR1		10
+#define SIGSEGV		11
+#define SIGUSR2		12
+#define SIGPIPE		13
+#define SIGALRM		14
+#define SIGTERM		15
+#define SIGSTKFLT	16
+#define SIGCHLD		17
+#define SIGCONT		18
+#define SIGSTOP		19
+#define SIGTSTP		20
+#define SIGTTIN		21
+#define SIGTTOU		22
+#define SIGURG		23
+#define SIGXCPU		24
+#define SIGXFSZ		25
+#define SIGVTALRM	26
+#define SIGPROF		27
+#define SIGWINCH	28
+#define SIGIO		29
+#define SIGPOLL		SIGIO
+/*
+#define SIGLOST		29
+*/
+#define SIGPWR		30
+#define SIGSYS		31
+#define	SIGUNUSED	31
+
+/* These should not be considered constants from userland.  */
+#define SIGRTMIN	32
+#define SIGRTMAX	_NSIG
+
+/*
+ * SA_FLAGS values:
+ *
+ * SA_ONSTACK indicates that a registered stack_t will be used.
+ * SA_RESTART flag to get restarting signals (which were the default long ago)
+ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
+ * SA_RESETHAND clears the handler when the signal is delivered.
+ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
+ * SA_NODEFER prevents the current signal from being masked in the handler.
+ *
+ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
+ * Unix names RESETHAND and NODEFER respectively.
+ */
+#define SA_NOCLDSTOP	0x00000001
+#define SA_NOCLDWAIT	0x00000002 /* not supported yet */
+#define SA_SIGINFO	0x00000004
+#define SA_ONSTACK	0x08000000
+#define SA_RESTART	0x10000000
+#define SA_NODEFER	0x40000000
+#define SA_RESETHAND	0x80000000
+
+#define SA_NOMASK	SA_NODEFER
+#define SA_ONESHOT	SA_RESETHAND
+
+#define SA_RESTORER	0x04000000
+
+#define MINSIGSTKSZ	2048
+#define SIGSTKSZ	8192
+
+#include <asm-generic/signal-defs.h>
+
+#ifndef __KERNEL__
+/* Here we must cater to libcs that poke about in kernel headers.  */
+
+struct sigaction {
+	union {
+	  __sighandler_t _sa_handler;
+	  void (*_sa_sigaction)(int, struct siginfo *, void *);
+	} _u;
+	sigset_t sa_mask;
+	unsigned long sa_flags;
+	void (*sa_restorer)(void);
+};
+
+#define sa_handler	_u._sa_handler
+#define sa_sigaction	_u._sa_sigaction
+
+#endif /* __KERNEL__ */
+
+typedef struct sigaltstack {
+	void *ss_sp;
+	int ss_flags;
+	size_t ss_size;
+} stack_t;
+
+
+#endif /* _UAPI_H8300_SIGNAL_H */
diff --git a/arch/h8300/include/uapi/asm/swab.h b/arch/h8300/include/uapi/asm/swab.h
new file mode 100644
index 0000000..7847e56
--- /dev/null
+++ b/arch/h8300/include/uapi/asm/swab.h
@@ -0,0 +1 @@
+#include <asm-generic/swab.h>
diff --git a/arch/h8300/include/uapi/asm/unistd.h b/arch/h8300/include/uapi/asm/unistd.h
new file mode 100644
index 0000000..7a2eb69
--- /dev/null
+++ b/arch/h8300/include/uapi/asm/unistd.h
@@ -0,0 +1,3 @@
+#define __ARCH_NOMMU
+
+#include <asm-generic/unistd.h>
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 03/16] h8300: Exception and Interrupt handling
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
  2015-03-09  8:46 ` [PATCH v6 01/16] h8300: Assembly headers Yoshinori Sato
  2015-03-09  8:46 ` [PATCH v6 02/16] h8300: UAPI headers Yoshinori Sato
@ 2015-03-09  8:46 ` Yoshinori Sato
  2015-03-09  8:46 ` [PATCH v6 04/16] h8300: kernel booting Yoshinori Sato
                   ` (13 subsequent siblings)
  16 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:46 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 arch/h8300/kernel/entry.S | 418 ++++++++++++++++++++++++++++++++++++++++++++++
 arch/h8300/kernel/irq.c   | 100 +++++++++++
 arch/h8300/kernel/traps.c | 161 ++++++++++++++++++
 3 files changed, 679 insertions(+)
 create mode 100644 arch/h8300/kernel/entry.S
 create mode 100644 arch/h8300/kernel/irq.c
 create mode 100644 arch/h8300/kernel/traps.c

diff --git a/arch/h8300/kernel/entry.S b/arch/h8300/kernel/entry.S
new file mode 100644
index 0000000..8f56f51
--- /dev/null
+++ b/arch/h8300/kernel/entry.S
@@ -0,0 +1,418 @@
+/*
+ *
+ *  linux/arch/h8300/kernel/entry.S
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *  David McCullough <davidm@snapgear.com>
+ *
+ */
+
+/*
+ *  entry.S
+ *  include exception/interrupt gateway
+ *          system call entry
+ */
+
+#include <linux/sys.h>
+#include <asm/unistd.h>
+#include <asm/setup.h>
+#include <asm/segment.h>
+#include <asm/linkage.h>
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
+#include <asm/errno.h>
+
+#if defined(CONFIG_CPU_H8300H)
+#define USERRET 8
+INTERRUPTS = 64
+	.h8300h
+	.macro	SHLL2 reg
+	shll.l	\reg
+	shll.l	\reg
+	.endm
+	.macro	SHLR2 reg
+	shlr.l	\reg
+	shlr.l	\reg
+	.endm
+	.macro	SAVEREGS
+	mov.l	er0,@-sp
+	mov.l	er1,@-sp
+	mov.l	er2,@-sp
+	mov.l	er3,@-sp
+	.endm
+	.macro	RESTOREREGS
+	mov.l	@sp+,er3
+	mov.l	@sp+,er2
+	.endm
+	.macro	SAVEEXR
+	.endm
+	.macro	RESTOREEXR
+	.endm
+#endif
+#if defined(CONFIG_CPU_H8S)
+#define USERRET 10
+#define USEREXR 8
+INTERRUPTS = 128
+	.h8300s
+	.macro	SHLL2 reg
+	shll.l	#2,\reg
+	.endm
+	.macro	SHLR2 reg
+	shlr.l	#2,\reg
+	.endm
+	.macro	SAVEREGS
+	stm.l	er0-er3,@-sp
+	.endm
+	.macro	RESTOREREGS
+	ldm.l	@sp+,er2-er3
+	.endm
+	.macro	SAVEEXR
+	mov.w	@(USEREXR:16,er0),r1
+	mov.w	r1,@(LEXR-LER3:16,sp)		/* copy EXR */
+	.endm
+	.macro	RESTOREEXR
+	mov.w	@(LEXR-LER1:16,sp),r1		/* restore EXR */
+	mov.b	r1l,r1h
+	mov.w	r1,@(USEREXR:16,er0)
+	.endm
+#endif
+
+
+/* CPU context save/restore macros. */
+
+	.macro	SAVE_ALL
+	mov.l	er0,@-sp
+	stc	ccr,r0l				/* check kernel mode */
+	btst	#4,r0l
+	bne	5f
+
+	/* user mode */
+	mov.l	sp,@_sw_usp
+	mov.l	@sp,er0				/* restore saved er0 */
+	orc	#0x10,ccr			/* switch kernel stack */
+	mov.l	@_sw_ksp,sp
+	sub.l	#(LRET-LORIG),sp		/* allocate LORIG - LRET */
+	SAVEREGS
+	mov.l   @_sw_usp,er0
+	mov.l   @(USERRET:16,er0),er1           /* copy the RET addr */
+	mov.l   er1,@(LRET-LER3:16,sp)
+	SAVEEXR
+
+	mov.l	@(LORIG-LER3:16,sp),er0
+	mov.l	er0,@(LER0-LER3:16,sp)		/* copy ER0 */
+	mov.w	e1,r1				/* e1 highbyte = ccr */
+	and	#0xef,r1h			/* mask mode? flag */
+	bra	6f
+5:
+	/* kernel mode */
+	mov.l	@sp,er0				/* restore saved er0 */
+	subs	#2,sp				/* set dummy ccr */
+	subs	#4,sp				/* set dummp sp */
+	SAVEREGS
+	mov.w	@(LRET-LER3:16,sp),r1		/* copy old ccr */
+6:
+	mov.b	r1h,r1l
+	mov.b	#0,r1h
+	mov.w	r1,@(LCCR-LER3:16,sp)		/* set ccr */
+	mov.l	@_sw_usp,er2
+	mov.l	er2,@(LSP-LER3:16,sp)		/* set usp */
+	mov.l	er6,@-sp			/* syscall arg #6 */
+	mov.l	er5,@-sp			/* syscall arg #5 */
+	mov.l	er4,@-sp			/* syscall arg #4 */
+	.endm					/* r1 = ccr */
+
+	.macro	RESTORE_ALL
+	mov.l	@sp+,er4
+	mov.l	@sp+,er5
+	mov.l	@sp+,er6
+	RESTOREREGS
+	mov.w	@(LCCR-LER1:16,sp),r0		/* check kernel mode */
+	btst	#4,r0l
+	bne	7f
+
+	orc	#0xc0,ccr
+	mov.l	@(LSP-LER1:16,sp),er0
+	mov.l	@(LER0-LER1:16,sp),er1		/* restore ER0 */
+	mov.l	er1,@er0
+	RESTOREEXR
+	mov.w	@(LCCR-LER1:16,sp),r1		/* restore the RET addr */
+	mov.b	r1l,r1h
+	mov.b	@(LRET+1-LER1:16,sp),r1l
+	mov.w	r1,e1
+	mov.w	@(LRET+2-LER1:16,sp),r1
+	mov.l	er1,@(USERRET:16,er0)
+
+	mov.l	@sp+,er1
+	add.l	#(LRET-LER1),sp			/* remove LORIG - LRET */
+	mov.l	sp,@_sw_ksp
+	andc	#0xef,ccr			/* switch to user mode */
+	mov.l	er0,sp
+	bra	8f
+7:
+	mov.l	@sp+,er1
+	add.l	#10,sp
+8:
+	mov.l	@sp+,er0
+	adds	#4,sp				/* remove the sw created LVEC */
+	rte
+	.endm
+
+.globl _system_call
+.globl ret_from_exception
+.globl ret_from_fork
+.globl ret_from_kernel_thread
+.globl ret_from_interrupt
+.globl _interrupt_redirect_table
+.globl _sw_ksp,_sw_usp
+.globl _resume
+.globl _interrupt_entry
+.globl _trace_break
+.globl _nmi
+
+#if defined(CONFIG_ROMKERNEL)
+	.section .int_redirect,"ax"
+_interrupt_redirect_table:
+#if defined(CONFIG_CPU_H8300H)
+	.rept	7
+	.long	0
+	.endr
+#endif
+#if defined(CONFIG_CPU_H8S)
+	.rept	5
+	.long	0
+	.endr
+	jmp	@_trace_break
+	.long	0
+#endif
+
+	jsr	@_interrupt_entry		/* NMI */
+	jmp	@_system_call			/* TRAPA #0 (System call) */
+	.long	0
+	.long	0
+	jmp	@_trace_break			/* TRAPA #3 (breakpoint) */
+	.rept	INTERRUPTS-12
+	jsr	@_interrupt_entry
+	.endr
+#endif
+#if defined(CONFIG_RAMKERNEL)
+.globl _interrupt_redirect_table
+	.section .bss
+_interrupt_redirect_table:
+	.space	4
+#endif
+
+	.section .text
+	.align	2
+_interrupt_entry:
+	SAVE_ALL
+/* r1l is saved ccr */
+	mov.l	sp,er0
+	add.l	#LVEC,er0
+	btst	#4,r1l
+	bne	1f
+	/* user LVEC */
+	mov.l	@_sw_usp,er0
+	adds	#4,er0
+1:
+	mov.l	@er0,er0			/* LVEC address */
+#if defined(CONFIG_ROMKERNEL)
+	sub.l	#_interrupt_redirect_table,er0
+#endif
+#if defined(CONFIG_RAMKERNEL)
+	mov.l	@_interrupt_redirect_table,er1
+	sub.l	er1,er0
+#endif
+	SHLR2	er0
+	dec.l	#1,er0
+	mov.l	sp,er1
+	subs	#4,er1				/* adjust ret_pc */
+#if defined(CONFIG_CPU_H8S)
+	orc	#7,exr
+#endif
+	jsr	@do_IRQ
+	jmp	@ret_from_interrupt
+
+_system_call:
+	subs	#4,sp				/* dummy LVEC */
+	SAVE_ALL
+	/* er0: syscall nr */
+	andc	#0xbf,ccr
+	mov.l	er0,er4
+
+	/* save top of frame */
+	mov.l	sp,er0
+	jsr	@set_esp0
+	mov.l	sp,er2
+	and.w	#0xe000,r2
+	mov.l	@(TI_FLAGS:16,er2),er2
+	and.w	#_TIF_WORK_SYSCALL_MASK,r2
+	beq	1f
+	mov.l	sp,er0
+	jsr	@do_syscall_trace_enter
+1:
+	cmp.l	#__NR_syscalls,er4
+	bcc	badsys
+	SHLL2	er4
+	mov.l	#_sys_call_table,er0
+	add.l	er4,er0
+	mov.l	@er0,er4
+	beq	ret_from_exception:16
+	mov.l	@(LER1:16,sp),er0
+	mov.l	@(LER2:16,sp),er1
+	mov.l	@(LER3:16,sp),er2
+	jsr	@er4
+	mov.l	er0,@(LER0:16,sp)		/* save the return value */
+	mov.l	sp,er2
+	and.w	#0xe000,r2
+	mov.l	@(TI_FLAGS:16,er2),er2
+	and.w	#_TIF_WORK_SYSCALL_MASK,r2
+	beq	2f
+	mov.l	sp,er0
+	jsr	@do_syscall_trace_leave
+2:
+	orc	#0xc0,ccr
+	bra	resume_userspace
+
+badsys:
+	mov.l	#-ENOSYS,er0
+	mov.l	er0,@(LER0:16,sp)
+	bra	resume_userspace
+
+#if !defined(CONFIG_PREEMPT)
+#define resume_kernel restore_all
+#endif
+
+ret_from_exception:
+#if defined(CONFIG_PREEMPT)
+	orc	#0xc0,ccr
+#endif
+ret_from_interrupt:
+	mov.b	@(LCCR+1:16,sp),r0l
+	btst	#4,r0l
+#if defined(CONFIG_PREEMPT)
+	bne	resume_kernel:16	/* return from kernel */
+#else
+	bne	restore_all:16		/* return from kernel */
+#endif
+resume_userspace:
+	andc	#0xbf,ccr
+	mov.l	sp,er4
+	and.w	#0xe000,r4		/* er4 <- current thread info */
+	mov.l	@(TI_FLAGS:16,er4),er1
+	and.l	#_TIF_WORK_MASK,er1
+	beq	restore_all:8
+work_pending:
+	btst	#TIF_NEED_RESCHED,r1l
+	bne	work_resched:8
+	/* work notifysig */
+	mov.l	sp,er0
+	subs	#4,er0			/* er0: pt_regs */
+	jsr	@do_notify_resume
+	bra	restore_all:8
+work_resched:
+	mov.l	sp,er0
+	jsr	@set_esp0
+	jsr	@schedule
+	bra	resume_userspace:8
+restore_all:
+	RESTORE_ALL			/* Does RTE */
+
+#if defined(CONFIG_PREEMPT)
+resume_kernel:
+	mov.l	@(TI_PRE_COUNT:16,er4),er0
+	bne	restore_all:8
+need_resched:
+	mov.l	@(TI_FLAGS:16,er4),er0
+	btst	#TIF_NEED_RESCHED,r0l
+	beq	restore_all:8
+	mov.b	@(LCCR+1:16,sp),r0l	/* Interrupt Enabled? */
+	bmi	restore_all:8
+	mov.l	sp,er0
+	jsr	@set_esp0
+	jsr	@preempt_schedule_irq
+	bra	need_resched:8
+#endif
+
+ret_from_fork:
+	mov.l	er2,er0
+	jsr	@schedule_tail
+	jmp	@ret_from_exception
+
+ret_from_kernel_thread:
+	mov.l	er2,er0
+	jsr	@schedule_tail
+	mov.l	@(LER4:16,sp),er0
+	mov.l	@(LER5:16,sp),er1
+	jsr	@er1
+	jmp	@ret_from_exception
+
+_resume:
+	/*
+	 * Beware - when entering resume, offset of tss is in d1,
+	 * prev (the current task) is in a0, next (the new task)
+	 * is in a1 and d2.b is non-zero if the mm structure is
+	 * shared between the tasks, so don't change these
+	 * registers until their contents are no longer needed.
+	 */
+
+	/* save sr */
+	sub.w	r3,r3
+	stc	ccr,r3l
+	mov.w	r3,@(THREAD_CCR+2:16,er0)
+
+	/* disable interrupts */
+	orc	#0xc0,ccr
+	mov.l	@_sw_usp,er3
+	mov.l	er3,@(THREAD_USP:16,er0)
+	mov.l	sp,@(THREAD_KSP:16,er0)
+
+	/* Skip address space switching if they are the same. */
+	/* FIXME: what did we hack out of here, this does nothing! */
+
+	mov.l	@(THREAD_USP:16,er1),er0
+	mov.l	er0,@_sw_usp
+	mov.l	@(THREAD_KSP:16,er1),sp
+
+	/* restore status register */
+	mov.w	@(THREAD_CCR+2:16,er1),r3
+
+	ldc	r3l,ccr
+	rts
+
+_trace_break:
+	subs	#4,sp
+	SAVE_ALL
+	sub.l	er1,er1
+	dec.l	#1,er1
+	mov.l	er1,@(LORIG,sp)
+	mov.l	sp,er0
+	jsr	@set_esp0
+	mov.l	@_sw_usp,er0
+	mov.l	@er0,er1
+	mov.w	@(-2:16,er1),r2
+	cmp.w	#0x5730,r2
+	beq	1f
+	subs	#2,er1
+	mov.l	er1,@er0
+1:
+	and.w	#0xff,e1
+	mov.l	er1,er0
+	jsr	@trace_trap
+	jmp	@ret_from_exception
+
+_nmi:
+	subs	#4, sp
+	mov.l	er0, @-sp
+	mov.l	@_interrupt_redirect_table, er0
+	add.l	#8*4, er0
+	mov.l	er0, @(4,sp)
+	mov.l	@sp+, er0
+	jmp	@_interrupt_entry
+
+	.section	.bss
+_sw_ksp:
+	.space	4
+_sw_usp:
+	.space	4
+
+	.end
diff --git a/arch/h8300/kernel/irq.c b/arch/h8300/kernel/irq.c
new file mode 100644
index 0000000..56adef5
--- /dev/null
+++ b/arch/h8300/kernel/irq.c
@@ -0,0 +1,100 @@
+/*
+ * linux/arch/h8300/kernel/irq.c
+ *
+ * Copyright 2014 Yoshinori Sato <ysato@users.sourceforge.jp>
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <asm/traps.h>
+
+#ifdef CONFIG_RAMKERNEL
+typedef void (*h8300_vector)(void);
+
+static const h8300_vector __initconst trap_table[] = {
+	0, 0, 0, 0,
+	_trace_break,
+	0, 0,
+	_nmi,
+	_system_call,
+	0, 0,
+	_trace_break,
+};
+
+static unsigned long __init *get_vector_address(void)
+{
+	unsigned long *rom_vector = CPU_VECTOR;
+	unsigned long base, tmp;
+	int vec_no;
+
+	base = rom_vector[EXT_IRQ0] & ADDR_MASK;
+
+	/* check romvector format */
+	for (vec_no = EXT_IRQ0 + 1; vec_no <= EXT_IRQ0+EXT_IRQS; vec_no++) {
+		if ((base+(vec_no - EXT_IRQ0)*4) !=
+		    (rom_vector[vec_no] & ADDR_MASK))
+			return NULL;
+	}
+
+	/* ramvector base address */
+	base -= EXT_IRQ0*4;
+
+	/* writerble? */
+	tmp = ~(*(volatile unsigned long *)base);
+	(*(volatile unsigned long *)base) = tmp;
+	if ((*(volatile unsigned long *)base) != tmp)
+		return NULL;
+	return (unsigned long *)base;
+}
+
+static void __init setup_vector(void)
+{
+	int i;
+	unsigned long *ramvec, *ramvec_p;
+	const h8300_vector *trap_entry;
+
+	ramvec = get_vector_address();
+	if (ramvec == NULL)
+		panic("interrupt vector serup failed.");
+	else
+		pr_debug("virtual vector at 0x%p\n", ramvec);
+
+	/* create redirect table */
+	ramvec_p = ramvec;
+	trap_entry = trap_table;
+	for (i = 0; i < NR_IRQS; i++) {
+		if (i < 12) {
+			if (*trap_entry)
+				*ramvec_p = VECTOR(*trap_entry);
+			ramvec_p++;
+			trap_entry++;
+		} else
+			*ramvec_p++ = REDIRECT(_interrupt_entry);
+	}
+	_interrupt_redirect_table = ramvec;
+}
+#else
+void setup_vector(void)
+{
+	/* noting do */
+}
+#endif
+
+void __init init_IRQ(void)
+{
+	int c;
+
+	setup_vector();
+	h8300_init_ipr();
+
+	for (c = 0; c < NR_IRQS; c++)
+		irq_set_chip_and_handler(c, &IRQ_CHIP, handle_simple_irq);
+}
+
+asmlinkage void do_IRQ(int irq)
+{
+	irq_enter();
+	generic_handle_irq(irq);
+	irq_exit();
+}
diff --git a/arch/h8300/kernel/traps.c b/arch/h8300/kernel/traps.c
new file mode 100644
index 0000000..1b2d7cd
--- /dev/null
+++ b/arch/h8300/kernel/traps.c
@@ -0,0 +1,161 @@
+/*
+ * linux/arch/h8300/boot/traps.c -- general exception handling code
+ * H8/300 support Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ * Cloned from Linux/m68k.
+ *
+ * No original Copyright holder listed,
+ * Probable original (C) Roman Zippel (assigned DJD, 1999)
+ *
+ * Copyright 1999-2000 D. Jeff Dionne, <jeff@rt-control.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/bug.h>
+
+#include <asm/irq.h>
+#include <asm/traps.h>
+#include <asm/page.h>
+
+static DEFINE_SPINLOCK(die_lock);
+
+/*
+ * this must be called very early as the kernel might
+ * use some instruction that are emulated on the 060
+ */
+
+void __init base_trap_init(void)
+{
+}
+
+void __init trap_init(void)
+{
+}
+
+asmlinkage void set_esp0(unsigned long ssp)
+{
+	current->thread.esp0 = ssp;
+}
+
+/*
+ *	Generic dumping code. Used for panic and debug.
+ */
+
+static void dump(struct pt_regs *fp)
+{
+	unsigned long	*sp;
+	unsigned char	*tp;
+	int		i;
+
+	pr_info("\nCURRENT PROCESS:\n\n");
+	pr_info("COMM=%s PID=%d\n", current->comm, current->pid);
+	if (current->mm) {
+		pr_info("TEXT=%08x-%08x DATA=%08x-%08x BSS=%08x-%08x\n",
+			(int) current->mm->start_code,
+			(int) current->mm->end_code,
+			(int) current->mm->start_data,
+			(int) current->mm->end_data,
+			(int) current->mm->end_data,
+			(int) current->mm->brk);
+		pr_info("USER-STACK=%08x  KERNEL-STACK=%08lx\n\n",
+			(int) current->mm->start_stack,
+			(int) PAGE_SIZE+(unsigned long)current);
+	}
+
+	show_regs(fp);
+	pr_info("\nCODE:");
+	tp = ((unsigned char *) fp->pc) - 0x20;
+	for (sp = (unsigned long *) tp, i = 0; (i < 0x40);  i += 4) {
+		if ((i % 0x10) == 0)
+			pr_info("\n%08x: ", (int) (tp + i));
+		pr_info("%08x ", (int) *sp++);
+	}
+	pr_info("\n");
+
+	pr_info("\nKERNEL STACK:");
+	tp = ((unsigned char *) fp) - 0x40;
+	for (sp = (unsigned long *) tp, i = 0; (i < 0xc0); i += 4) {
+		if ((i % 0x10) == 0)
+			pr_info("\n%08x: ", (int) (tp + i));
+		pr_info("%08x ", (int) *sp++);
+	}
+	pr_info("\n");
+	if (STACK_MAGIC != *(unsigned long *)((unsigned long)current+PAGE_SIZE))
+		pr_info("(Possibly corrupted stack page??)\n");
+
+	pr_info("\n\n");
+}
+
+void die(const char *str, struct pt_regs *fp, unsigned long err)
+{
+	static int diecount;
+
+	oops_enter();
+
+	console_verbose();
+	spin_lock_irq(&die_lock);
+	report_bug(fp->pc, fp);
+	pr_crit("%s: %04lx [#%d] ", str, err & 0xffff, ++diecount);
+	dump(fp);
+
+	spin_unlock_irq(&die_lock);
+	do_exit(SIGSEGV);
+}
+
+static int kstack_depth_to_print = 24;
+
+void show_stack(struct task_struct *task, unsigned long *esp)
+{
+	unsigned long *stack,  addr;
+	int i;
+
+	if (esp == NULL)
+		esp = (unsigned long *) &esp;
+
+	stack = esp;
+
+	pr_info("Stack from %08lx:", (unsigned long)stack);
+	for (i = 0; i < kstack_depth_to_print; i++) {
+		if (((unsigned long)stack & (THREAD_SIZE - 1)) == 0)
+			break;
+		if (i % 8 == 0)
+			pr_info("\n       ");
+		pr_info(" %08lx", *stack++);
+	}
+
+	pr_info("\nCall Trace:");
+	i = 0;
+	stack = esp;
+	while (((unsigned long)stack & (THREAD_SIZE - 1)) != 0) {
+		addr = *stack++;
+		/*
+		 * If the address is either in the text segment of the
+		 * kernel, or in the region which contains vmalloc'ed
+		 * memory, it *may* be the address of a calling
+		 * routine; if so, print it so that someone tracing
+		 * down the cause of the crash will be able to figure
+		 * out the call path that was taken.
+		 */
+		if (check_kernel_text(addr)) {
+			if (i % 4 == 0)
+				pr_info("\n       ");
+			pr_info(" [<%08lx>]", addr);
+			i++;
+		}
+	}
+	pr_info("\n");
+}
+
+void show_trace_task(struct task_struct *tsk)
+{
+	show_stack(tsk, (unsigned long *)tsk->thread.esp0);
+}
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 04/16] h8300: kernel booting
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
                   ` (2 preceding siblings ...)
  2015-03-09  8:46 ` [PATCH v6 03/16] h8300: Exception and Interrupt handling Yoshinori Sato
@ 2015-03-09  8:46 ` Yoshinori Sato
  2015-03-09  8:46 ` [PATCH v6 05/16] h8300: Process and signal Yoshinori Sato
                   ` (12 subsequent siblings)
  16 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:46 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 arch/h8300/boot/Makefile               |  26 +++++
 arch/h8300/boot/compressed/Makefile    |  37 +++++++
 arch/h8300/boot/compressed/head.S      |  48 +++++++++
 arch/h8300/boot/compressed/misc.c      |  74 ++++++++++++++
 arch/h8300/boot/compressed/vmlinux.lds |  32 ++++++
 arch/h8300/boot/compressed/vmlinux.scr |   9 ++
 arch/h8300/kernel/head_ram.S           |  60 ++++++++++++
 arch/h8300/kernel/head_rom.S           | 108 ++++++++++++++++++++
 arch/h8300/kernel/setup.c              | 174 +++++++++++++++++++++++++++++++++
 9 files changed, 568 insertions(+)
 create mode 100644 arch/h8300/boot/Makefile
 create mode 100644 arch/h8300/boot/compressed/Makefile
 create mode 100644 arch/h8300/boot/compressed/head.S
 create mode 100644 arch/h8300/boot/compressed/misc.c
 create mode 100644 arch/h8300/boot/compressed/vmlinux.lds
 create mode 100644 arch/h8300/boot/compressed/vmlinux.scr
 create mode 100644 arch/h8300/kernel/head_ram.S
 create mode 100644 arch/h8300/kernel/head_rom.S
 create mode 100644 arch/h8300/kernel/setup.c

diff --git a/arch/h8300/boot/Makefile b/arch/h8300/boot/Makefile
new file mode 100644
index 0000000..2f6393a
--- /dev/null
+++ b/arch/h8300/boot/Makefile
@@ -0,0 +1,26 @@
+# arch/h8300/boot/Makefile
+
+targets := vmlinux.srec vmlinux.bin zImage
+subdir- := compressed
+
+OBJCOPYFLAGS_vmlinux.srec := -Osrec
+OBJCOPYFLAGS_vmlinux.bin  := -Obinary
+OBJCOPYFLAGS_zImage := -O binary -R .note -R .comment -R .stab -R .stabstr -S
+
+UIMAGE_LOADADDR = $(CONFIG_RAMBASE)
+UIMAGE_ENTRYADDR = $(shell /bin/bash -c 'printf "0x%08x" \
+	$$[$(CONFIG_RAMBASE) + $(CONFIG_OFFSET)]')
+
+$(obj)/vmlinux.srec $(obj)/vmlinux.bin:  vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/compressed/vmlinux: FORCE
+	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
+
+$(obj)/uImage.bin: $(obj)/vmlinux.bin
+	$(call if_changed,uimage,none)
+
+CLEAN_FILES += arch/$(ARCH)/vmlinux.bin arch/$(ARCH)/vmlinux.srec arch/$(ARCH)/uImage.bin
diff --git a/arch/h8300/boot/compressed/Makefile b/arch/h8300/boot/compressed/Makefile
new file mode 100644
index 0000000..87d03b7
--- /dev/null
+++ b/arch/h8300/boot/compressed/Makefile
@@ -0,0 +1,37 @@
+#
+# linux/arch/sh/boot/compressed/Makefile
+#
+# create a compressed vmlinux image from the original vmlinux
+#
+
+targets		:= vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o
+
+OBJECTS = $(obj)/head.o $(obj)/misc.o
+
+#
+# IMAGE_OFFSET is the load offset of the compression loader
+# Assign dummy values if these 2 variables are not defined,
+# in order to suppress error message.
+#
+CONFIG_MEMORY_START     ?= 0x00400000
+CONFIG_BOOT_LINK_OFFSET ?= 0x00140000
+IMAGE_OFFSET := $(shell printf "0x%08x" $$(($(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET))))
+
+LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
+LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -estartup $(obj)/vmlinux.lds
+
+$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE
+	$(call if_changed,ld)
+	@:
+
+$(obj)/vmlinux.bin: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,gzip)
+
+LDFLAGS_piggy.o := -r --format binary --oformat elf32-h8300-linux -T
+OBJCOPYFLAGS := -O binary
+
+$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
+	$(call if_changed,ld)
diff --git a/arch/h8300/boot/compressed/head.S b/arch/h8300/boot/compressed/head.S
new file mode 100644
index 0000000..74c0d8cc
--- /dev/null
+++ b/arch/h8300/boot/compressed/head.S
@@ -0,0 +1,48 @@
+/*
+ *  linux/arch/h8300/boot/compressed/head.S
+ *
+ *  Copyright (C) 2006 Yoshinori Sato
+ */
+
+#include <linux/linkage.h>
+
+	.section	.text..startup,"ax"
+	.global	startup
+startup:
+	mov.l	er0, er4
+	mov.l	er0, sp
+	mov.l	#__sbss, er0
+	mov.l	#__ebss, er1
+	sub.l	er0, er1
+	shlr	er1
+	shlr	er1
+	sub.l	er2, er2
+1:
+	mov.l	er2, @er0
+	adds	#4, er0
+	dec.l	#1, er1
+	bne	1b
+	jsr	@decompress_kernel
+	mov.l	er4, er0
+	jmp	@0x400000
+
+	.align	9
+fake_headers_as_bzImage:
+	.word	0
+	.ascii	"HdrS"		; header signature
+	.word	0x0202		; header version number (>= 0x0105)
+				; or else old loadlin-1.5 will fail)
+	.word	0		; default_switch
+	.word	0		; SETUPSEG
+	.word	0x1000
+	.word	0		; pointing to kernel version string
+	.byte	0		; = 0, old one (LILO, Loadlin,
+				; 0xTV: T=0 for LILO
+				;       V = version
+	.byte	1		; Load flags bzImage=1
+	.word	0x8000		; size to move, when setup is not
+	.long	0x100000	; 0x100000 = default for big kernel
+	.long	0		; address of loaded ramdisk image
+	.long	0		; its size in bytes
+
+	.end
diff --git a/arch/h8300/boot/compressed/misc.c b/arch/h8300/boot/compressed/misc.c
new file mode 100644
index 0000000..7042741
--- /dev/null
+++ b/arch/h8300/boot/compressed/misc.c
@@ -0,0 +1,74 @@
+/*
+ * arch/h8300/boot/compressed/misc.c
+ *
+ * This is a collection of several routines from gzip-1.0.3
+ * adapted for Linux.
+ *
+ * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
+ *
+ * Adapted for h8300 by Yoshinori Sato 2006
+ */
+
+#include <asm/uaccess.h>
+
+/*
+ * gzip declarations
+ */
+
+#define OF(args)  args
+#define STATIC static
+
+#undef memset
+#undef memcpy
+#define memzero(s, n)     memset((s), (0), (n))
+
+extern int _end;
+static unsigned long free_mem_ptr;
+static unsigned long free_mem_end_ptr;
+
+extern char input_data[];
+extern int input_len;
+static unsigned char *output;
+
+#define HEAP_SIZE             0x10000
+
+#include "../../../../lib/decompress_inflate.c"
+
+void *memset(void *s, int c, size_t n)
+{
+	int i;
+	char *ss = (char *)s;
+
+	for (i = 0; i < n; i++)
+		ss[i] = c;
+	return s;
+}
+
+void *memcpy(void *dest, const void *src, size_t n)
+{
+	int i;
+	char *d = (char *)dest, *s = (char *)src;
+
+	for (i = 0; i < n; i++)
+		d[i] = s[i];
+	return dest;
+}
+
+static void error(char *x)
+{
+
+	while (1)
+		;	/* Halt */
+}
+
+#define STACK_SIZE (4096)
+long user_stack[STACK_SIZE];
+long *stack_start = &user_stack[STACK_SIZE];
+
+void decompress_kernel(void)
+{
+	free_mem_ptr = (unsigned long)&_end;
+	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
+
+	decompress(input_data, input_len, NULL, NULL, output, NULL, error);
+}
diff --git a/arch/h8300/boot/compressed/vmlinux.lds b/arch/h8300/boot/compressed/vmlinux.lds
new file mode 100644
index 0000000..a0a3a0e
--- /dev/null
+++ b/arch/h8300/boot/compressed/vmlinux.lds
@@ -0,0 +1,32 @@
+SECTIONS
+{
+        .text :
+        {
+        __stext = . ;
+	__text = .;
+	       *(.text..startup)
+	       *(.text)
+        __etext = . ;
+        }
+
+	.rodata :
+	{
+		*(.rodata)
+	}
+        .data :
+
+        {
+        __sdata = . ;
+        ___data_start = . ;
+                *(.data.*)
+	}
+        .bss :
+        {
+        . = ALIGN(0x4) ;
+        __sbss = . ;
+                *(.bss*)
+        . = ALIGN(0x4) ;
+        __ebss = . ;
+        __end = . ;
+        }
+}
diff --git a/arch/h8300/boot/compressed/vmlinux.scr b/arch/h8300/boot/compressed/vmlinux.scr
new file mode 100644
index 0000000..a0849036
--- /dev/null
+++ b/arch/h8300/boot/compressed/vmlinux.scr
@@ -0,0 +1,9 @@
+SECTIONS
+{
+  .data : {
+	input_len = .;
+	LONG(input_data_end - input_data) input_data = .;
+	*(.data)
+	input_data_end = .;
+	}
+}
diff --git a/arch/h8300/kernel/head_ram.S b/arch/h8300/kernel/head_ram.S
new file mode 100644
index 0000000..f64b3d9
--- /dev/null
+++ b/arch/h8300/kernel/head_ram.S
@@ -0,0 +1,60 @@
+
+#include <linux/sys.h>
+#include <linux/init.h>
+#include <asm/unistd.h>
+#include <asm/setup.h>
+#include <asm/segment.h>
+#include <asm/linkage.h>
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
+#include <asm/errno.h>
+
+#if defined(CONFIG_CPU_H8300H)
+	.h8300h
+#define SYSCR 0xfee012
+#define IRAMTOP 0xffff20
+#endif
+#if defined(CONFIG_CPU_H8S)
+	.h8300s
+#define INTCR 0xffff31
+#define IRAMTOP 0xffc000
+#endif
+
+	__HEAD
+	.global	_start
+_start:
+	mov.l	#IRAMTOP,sp
+	/* .bss clear */
+	mov.l	#_sbss,er5
+	mov.l	#_ebss,er4
+	sub.l	er5,er4
+	shlr	er4
+	shlr	er4
+	sub.l	er1,er1
+1:
+	mov.l	er1,@er5
+	adds	#4,er5
+	dec.l	#1,er4
+	bne	1b
+	jsr	@parse_bootparam
+
+	/* linux kernel start */
+#if defined(CONFIG_CPU_H8300H)
+	ldc	#0xd0,ccr	/* running kernel */
+	mov.l	#SYSCR,er0
+	bclr	#3,@er0
+#endif
+#if defined(CONFIG_CPU_H8S)
+	ldc	#0x07,exr
+	bclr	#4,@INTCR:8
+	bset	#5,@INTCR:8	/* Interrupt mode 2 */
+	ldc	#0x90,ccr	/* running kernel */
+#endif
+	mov.l	#init_thread_union,sp
+	add.l	#0x2000,sp
+	jsr	@start_kernel
+
+1:
+	bra	1b
+
+	.end
diff --git a/arch/h8300/kernel/head_rom.S b/arch/h8300/kernel/head_rom.S
new file mode 100644
index 0000000..60ca8fa
--- /dev/null
+++ b/arch/h8300/kernel/head_rom.S
@@ -0,0 +1,108 @@
+#include <linux/init.h>
+#include <asm/thread_info.h>
+
+#if defined(CONFIG_CPU_H8300H)
+	.h8300h
+#define SYSCR 0xfee012
+#define IRAMTOP 0xffff20
+#define NR_INT 64
+#endif
+#if defined(CONFIG_CPU_H8S)
+	.h8300s
+#define INTCR 0xffff31
+#define IRAMTOP 0xffc000
+#define NR_INT 128
+#endif
+
+	__HEAD
+	.global	_start
+_start:
+	mov.l	#IRAMTOP,sp
+#if !defined(CONFIG_H8300H_SIM) && \
+    !defined(CONFIG_H8S_SIM)
+	jsr	@lowlevel_init
+
+	/* copy .data */
+	mov.l	#_begin_data,er5
+	mov.l	#_sdata,er6
+	mov.l	#_edata,er4
+	sub.l	er6,er4
+	shlr.l	er4
+	shlr.l	er4
+1:
+	mov.l	@er5+,er0
+	mov.l	er0,@er6
+	adds	#4,er6
+	dec.l	#1,er4
+	bne	1b
+	/* .bss clear */
+	mov.l	#_sbss,er5
+	mov.l	#_ebss,er4
+	sub.l	er5,er4
+	shlr	er4
+	shlr	er4
+	sub.l	er0,er0
+1:
+	mov.l	er0,@er5
+	adds	#4,er5
+	dec.l	#1,er4
+	bne	1b
+#else
+	/* get cmdline from gdb */
+	jsr	@0xcc
+	;; er0 - argc
+	;; er1 - argv
+	mov.l	#command_line,er3
+	adds	#4,er1
+	dec.l	#1,er0
+	beq	4f
+1:
+	mov.l	@er1+,er2
+2:
+	mov.b	@er2+,r4l
+	beq	3f
+	mov.b	r4l,@er3
+	adds	#1,er3
+	bra	2b
+3:
+	mov.b	#' ',r4l
+	mov.b	r4l,@er3
+	adds	#1,er3
+	dec.l	#1,er0
+	bne	1b
+	subs	#1,er3
+	mov.b	#0,r4l
+	mov.b	r4l,@er3
+4:
+#endif
+	/* linux kernel start */
+#if defined(CONFIG_CPU_H8300H)
+	ldc	#0xd0,ccr	/* running kernel */
+	mov.l	#SYSCR,er0
+	bclr	#3,@er0
+#endif
+#if defined(CONFIG_CPU_H8S)
+	ldc	#0x07,exr
+	bclr	#4,@INTCR:8
+	bset	#5,@INTCR:8	/* Interrupt mode 2 */
+	ldc	#0x90,ccr	/* running kernel */
+#endif
+	mov.l	#init_thread_union,sp
+	add.l	#0x2000,sp
+	jsr	@start_kernel
+
+1:
+	bra	1b
+
+#if defined(CONFIG_ROMKERNEL)
+	/* interrupt vector */
+	.section .vectors,"ax"
+	.long	_start
+	.long	_start
+vector	=	2
+	.rept	NR_INT - 2
+	.long	_interrupt_redirect_table+vector*4
+vector	=	vector + 1
+	.endr
+#endif
+	.end
diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c
new file mode 100644
index 0000000..95e7fb6
--- /dev/null
+++ b/arch/h8300/kernel/setup.c
@@ -0,0 +1,174 @@
+/*
+ *  linux/arch/h8300/kernel/setup.c
+ *
+ *  Copyright (C) 2001-2014 Yoshinori Sato <ysato@users.sourceforge.jp>
+ */
+
+/*
+ * This file handles the architecture-dependent parts of system setup
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/console.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/bootmem.h>
+#include <linux/seq_file.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+
+#include <asm/setup.h>
+#include <asm/irq.h>
+#include <asm/pgtable.h>
+#include <asm/sections.h>
+#include <asm/bootparams.h>
+#include <asm/page.h>
+
+#if defined(CONFIG_CPU_H8300H)
+#define CPU "H8/300H"
+#elif defined(CONFIG_CPU_H8S)
+#define CPU "H8S"
+#else
+#define CPU "Unknown"
+#endif
+
+struct bootparams bootparams;
+unsigned long rom_length;
+unsigned long memory_start;
+unsigned long memory_end;
+EXPORT_SYMBOL(memory_end);
+
+char __initdata command_line[COMMAND_LINE_SIZE];
+
+void sim_console_register(void);
+int h8300_clk_init(unsigned long hz);
+
+void __init __attribute__((weak)) early_device_init(void)
+{
+}
+
+void __init setup_arch(char **cmdline_p)
+{
+	int bootmap_size;
+
+#if defined(CONFIG_ROMKERNEL)
+	bootparams.ram_end = CONFIG_RAMBASE + CONFIG_RAMSIZE;
+	bootparams.clock_freq = CONFIG_CPU_CLOCK;
+#endif
+
+	memory_start = (unsigned long) &_ramend;
+
+	memory_start = PAGE_ALIGN(memory_start);
+	memory_end = bootparams.ram_end;
+
+	init_mm.start_code = (unsigned long) _stext;
+	init_mm.end_code = (unsigned long) _etext;
+	init_mm.end_data = (unsigned long) _edata;
+	init_mm.brk = (unsigned long) 0;
+
+	pr_notice("\r\n\nuClinux " CPU "\n");
+	pr_notice("Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
+
+	strcpy(boot_command_line, command_line);
+	*cmdline_p = command_line;
+
+	parse_early_param();
+
+	/*
+	 * give all the memory to the bootmap allocator,  tell it to put the
+	 * boot mem_map at the start of memory
+	 */
+	bootmap_size = init_bootmem_node(
+			NODE_DATA(0),
+			memory_start >> PAGE_SHIFT, /* map goes here */
+			PAGE_OFFSET >> PAGE_SHIFT,	/* 0 on coldfire */
+			memory_end >> PAGE_SHIFT);
+	/*
+	 * free the usable memory,  we have to make sure we do not free
+	 * the bootmem bitmap so we then reserve it after freeing it :-)
+	 */
+	free_bootmem(memory_start, memory_end - memory_start);
+	reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT);
+#if defined(CONFIG_H8300H_SIM) || defined(CONFIG_H8S_SIM)
+	sim_console_register();
+#endif
+
+	early_device_init();
+	early_platform_driver_probe("earlyprintk", 1, 0);
+	/*
+	 * get kmalloc into gear
+	 */
+	paging_init();
+}
+
+/*
+ *	Get CPU information for use by the procfs.
+ */
+
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
+	char *cpu;
+	u_long clockfreq;
+
+	cpu = CPU;
+	clockfreq = bootparams.clock_freq;
+
+	seq_printf(m,  "CPU:\t\t%s\n"
+		   "Clock:\t\t%lu.%1luMHz\n"
+		   "BogoMips:\t%lu.%02lu\n"
+		   "Calibration:\t%lu loops\n",
+		   cpu,
+		   clockfreq/1000, clockfreq%1000,
+		   (loops_per_jiffy*HZ)/500000,
+		   ((loops_per_jiffy*HZ)/5000)%100,
+		   (loops_per_jiffy*HZ));
+
+	return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+	return *pos < num_possible_cpus() ?
+		((void *) 0x12345678) : NULL;
+}
+
+static void *c_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	++*pos;
+	return c_start(m, pos);
+}
+
+static void c_stop(struct seq_file *m, void *v)
+{
+}
+
+const struct seq_operations cpuinfo_op = {
+	.start	= c_start,
+	.next	= c_next,
+	.stop	= c_stop,
+	.show	= show_cpuinfo,
+};
+
+void __init parse_bootparam(struct bootparams *bp)
+{
+	memcpy(&bootparams, bp, bp->size);
+	strncpy(command_line, bootparams.command_line, sizeof(command_line));
+}
+
+static void __init timer_setup(void)
+{
+	early_platform_driver_register_all("earlytimer");
+	early_platform_driver_probe("earlytimer", 1, 0);
+}
+
+void __init time_init(void)
+{
+	h8300_clk_init(bootparams.clock_freq);
+	late_time_init = timer_setup;
+}
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 05/16] h8300: Process and signal
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
                   ` (3 preceding siblings ...)
  2015-03-09  8:46 ` [PATCH v6 04/16] h8300: kernel booting Yoshinori Sato
@ 2015-03-09  8:46 ` Yoshinori Sato
  2015-03-09  8:47 ` [PATCH v6 06/16] h8300: CPU depend helpers Yoshinori Sato
                   ` (11 subsequent siblings)
  16 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:46 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 arch/h8300/kernel/entry.S   |   6 +-
 arch/h8300/kernel/process.c | 171 ++++++++++++++++++++++++++
 arch/h8300/kernel/ptrace.c  | 203 +++++++++++++++++++++++++++++++
 arch/h8300/kernel/signal.c  | 289 ++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 664 insertions(+), 5 deletions(-)
 create mode 100644 arch/h8300/kernel/process.c
 create mode 100644 arch/h8300/kernel/ptrace.c
 create mode 100644 arch/h8300/kernel/signal.c

diff --git a/arch/h8300/kernel/entry.S b/arch/h8300/kernel/entry.S
index 8f56f51..797dfa8 100644
--- a/arch/h8300/kernel/entry.S
+++ b/arch/h8300/kernel/entry.S
@@ -289,11 +289,7 @@ ret_from_exception:
 ret_from_interrupt:
 	mov.b	@(LCCR+1:16,sp),r0l
 	btst	#4,r0l
-#if defined(CONFIG_PREEMPT)
 	bne	resume_kernel:16	/* return from kernel */
-#else
-	bne	restore_all:16		/* return from kernel */
-#endif
 resume_userspace:
 	andc	#0xbf,ccr
 	mov.l	sp,er4
@@ -308,7 +304,7 @@ work_pending:
 	mov.l	sp,er0
 	subs	#4,er0			/* er0: pt_regs */
 	jsr	@do_notify_resume
-	bra	restore_all:8
+	bra	resume_userspace:8
 work_resched:
 	mov.l	sp,er0
 	jsr	@set_esp0
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
new file mode 100644
index 0000000..dee4125
--- /dev/null
+++ b/arch/h8300/kernel/process.c
@@ -0,0 +1,171 @@
+/*
+ *  linux/arch/h8300/kernel/process.c
+ *
+ * Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ *  Based on:
+ *
+ *  linux/arch/m68knommu/kernel/process.c
+ *
+ *  Copyright (C) 1998  D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>,
+ *                      Kenneth Albanowski <kjahds@kjahds.com>,
+ *                      The Silver Hammer Group, Ltd.
+ *
+ *  linux/arch/m68k/kernel/process.c
+ *
+ *  Copyright (C) 1995  Hamish Macdonald
+ *
+ *  68060 fixes by Jesper Skov
+ */
+
+/*
+ * This file handles the architecture-dependent parts of process handling..
+ */
+
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/stddef.h>
+#include <linux/unistd.h>
+#include <linux/ptrace.h>
+#include <linux/user.h>
+#include <linux/interrupt.h>
+#include <linux/reboot.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/rcupdate.h>
+
+#include <asm/uaccess.h>
+#include <asm/traps.h>
+#include <asm/setup.h>
+#include <asm/pgtable.h>
+
+void (*pm_power_off)(void) = NULL;
+EXPORT_SYMBOL(pm_power_off);
+
+asmlinkage void ret_from_fork(void);
+asmlinkage void ret_from_kernel_thread(void);
+
+/*
+ * The idle loop on an H8/300..
+ */
+void arch_cpu_idle(void)
+{
+	local_irq_enable();
+	__asm__("sleep");
+}
+
+void machine_restart(char *__unused)
+{
+	local_irq_disable();
+	__asm__("jmp @@0");
+}
+
+void machine_halt(void)
+{
+	local_irq_disable();
+	__asm__("sleep");
+	for (;;)
+		;
+}
+
+void machine_power_off(void)
+{
+	local_irq_disable();
+	__asm__("sleep");
+	for (;;)
+		;
+}
+
+void show_regs(struct pt_regs *regs)
+{
+	show_regs_print_info(KERN_DEFAULT);
+
+	pr_notice("\n");
+	pr_notice("PC: %08lx  Status: %02x\n",
+	       regs->pc, regs->ccr);
+	pr_notice("ORIG_ER0: %08lx ER0: %08lx ER1: %08lx\n",
+	       regs->orig_er0, regs->er0, regs->er1);
+	pr_notice("ER2: %08lx ER3: %08lx ER4: %08lx ER5: %08lx\n",
+	       regs->er2, regs->er3, regs->er4, regs->er5);
+	pr_notice("ER6' %08lx ", regs->er6);
+	if (user_mode(regs))
+		printk("USP: %08lx\n", rdusp());
+	else
+		printk("\n");
+}
+
+void flush_thread(void)
+{
+}
+
+int copy_thread(unsigned long clone_flags,
+		unsigned long usp, unsigned long topstk,
+		struct task_struct *p)
+{
+	struct pt_regs *childregs;
+
+	childregs = (struct pt_regs *) (THREAD_SIZE + task_stack_page(p)) - 1;
+
+	if (unlikely(p->flags & PF_KTHREAD)) {
+		memset(childregs, 0, sizeof(struct pt_regs));
+		childregs->retpc = (unsigned long) ret_from_kernel_thread;
+		childregs->er4 = topstk; /* arg */
+		childregs->er5 = usp; /* fn */
+	}  else {
+		*childregs = *current_pt_regs();
+		childregs->er0 = 0;
+		childregs->retpc = (unsigned long) ret_from_fork;
+		p->thread.usp = usp ?: rdusp();
+	}
+	p->thread.ksp = (unsigned long)childregs;
+
+	return 0;
+}
+
+unsigned long thread_saved_pc(struct task_struct *tsk)
+{
+	return ((struct pt_regs *)tsk->thread.esp0)->pc;
+}
+
+unsigned long get_wchan(struct task_struct *p)
+{
+	unsigned long fp, pc;
+	unsigned long stack_page;
+	int count = 0;
+
+	if (!p || p == current || p->state == TASK_RUNNING)
+		return 0;
+
+	stack_page = (unsigned long)p;
+	fp = ((struct pt_regs *)p->thread.ksp)->er6;
+	do {
+		if (fp < stack_page+sizeof(struct thread_info) ||
+		    fp >= 8184+stack_page)
+			return 0;
+		pc = ((unsigned long *)fp)[1];
+		if (!in_sched_functions(pc))
+			return pc;
+		fp = *(unsigned long *) fp;
+	} while (count++ < 16);
+	return 0;
+}
+
+/* generic sys_clone is not enough registers */
+asmlinkage int sys_clone(unsigned long __user *args)
+{
+	unsigned long clone_flags;
+	unsigned long  newsp;
+	uintptr_t parent_tidptr;
+	uintptr_t child_tidptr;
+
+	get_user(clone_flags, &args[0]);
+	get_user(newsp, &args[1]);
+	get_user(parent_tidptr, &args[2]);
+	get_user(child_tidptr, &args[3]);
+	return do_fork(clone_flags, newsp, 0,
+		       (int __user *)parent_tidptr, (int __user *)child_tidptr);
+}
diff --git a/arch/h8300/kernel/ptrace.c b/arch/h8300/kernel/ptrace.c
new file mode 100644
index 0000000..9207554
--- /dev/null
+++ b/arch/h8300/kernel/ptrace.c
@@ -0,0 +1,203 @@
+/*
+ *  linux/arch/h8300/kernel/ptrace.c
+ *
+ *  Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of
+ * this archive for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/audit.h>
+#include <linux/tracehook.h>
+#include <linux/regset.h>
+#include <linux/elf.h>
+
+#define CCR_MASK 0x6f    /* mode/imask not set */
+#define EXR_MASK 0x80    /* modify only T */
+
+#define PT_REG(r) offsetof(struct pt_regs, r)
+
+extern void user_disable_single_step(struct task_struct *child);
+
+/* Mapping from PT_xxx to the stack offset at which the register is
+   saved.  Notice that usp has no stack-slot and needs to be treated
+   specially (see get_reg/put_reg below). */
+static const int register_offset[] = {
+	PT_REG(er1), PT_REG(er2), PT_REG(er3), PT_REG(er4),
+	PT_REG(er5), PT_REG(er6), PT_REG(er0), -1,
+	PT_REG(orig_er0), PT_REG(ccr), PT_REG(pc),
+#if defined(CONFIG_CPU_H8S)
+	PT_REG(exr),
+#endif
+};
+
+/* read register */
+long h8300_get_reg(struct task_struct *task, int regno)
+{
+	switch (regno) {
+	case PT_USP:
+		return task->thread.usp + sizeof(long)*2;
+	case PT_CCR:
+	case PT_EXR:
+	    return *(unsigned short *)(task->thread.esp0 +
+				       register_offset[regno]);
+	default:
+	    return *(unsigned long *)(task->thread.esp0 +
+				      register_offset[regno]);
+	}
+}
+
+int h8300_put_reg(struct task_struct *task, int regno, unsigned long data)
+{
+	unsigned short oldccr;
+	unsigned short oldexr;
+
+	switch (regno) {
+	case PT_USP:
+		task->thread.usp = data - sizeof(long)*2;
+	case PT_CCR:
+		oldccr = *(unsigned short *)(task->thread.esp0 +
+					     register_offset[regno]);
+		oldccr &= ~CCR_MASK;
+		data &= CCR_MASK;
+		data |= oldccr;
+		*(unsigned short *)(task->thread.esp0 +
+				    register_offset[regno]) = data;
+		break;
+	case PT_EXR:
+		oldexr = *(unsigned short *)(task->thread.esp0 +
+					     register_offset[regno]);
+		oldccr &= ~EXR_MASK;
+		data &= EXR_MASK;
+		data |= oldexr;
+		*(unsigned short *)(task->thread.esp0 +
+				    register_offset[regno]) = data;
+		break;
+	default:
+		*(unsigned long *)(task->thread.esp0 +
+				   register_offset[regno]) = data;
+		break;
+	}
+	return 0;
+}
+
+static int regs_get(struct task_struct *target,
+		    const struct user_regset *regset,
+		    unsigned int pos, unsigned int count,
+		    void *kbuf, void __user *ubuf)
+{
+	int r;
+	struct user_regs_struct regs;
+	long *reg = (long *)&regs;
+
+	/* build user regs in buffer */
+	for (r = 0; r < ARRAY_SIZE(register_offset); r++)
+		*reg++ = h8300_get_reg(target, r);
+
+	return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+				   &regs, 0, sizeof(regs));
+}
+
+static int regs_set(struct task_struct *target,
+		    const struct user_regset *regset,
+		    unsigned int pos, unsigned int count,
+		    const void *kbuf, const void __user *ubuf)
+{
+	int r;
+	int ret;
+	struct user_regs_struct regs;
+	long *reg;
+
+	/* build user regs in buffer */
+	for (reg = (long *)&regs, r = 0; r < ARRAY_SIZE(register_offset); r++)
+		*reg++ = h8300_get_reg(target, r);
+
+	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+				 &regs, 0, sizeof(regs));
+	if (ret)
+		return ret;
+
+	/* write back to pt_regs */
+	for (reg = (long *)&regs, r = 0; r < ARRAY_SIZE(register_offset); r++)
+		h8300_put_reg(target, r, *reg++);
+	return 0;
+}
+
+enum h8300_regset {
+	REGSET_GENERAL,
+};
+
+static const struct user_regset h8300_regsets[] = {
+	[REGSET_GENERAL] = {
+		.core_note_type	= NT_PRSTATUS,
+		.n		= ELF_NGREG,
+		.size		= sizeof(long),
+		.align		= sizeof(long),
+		.get		= regs_get,
+		.set		= regs_set,
+	},
+};
+
+static const struct user_regset_view user_h8300_native_view = {
+	.name = "h8300",
+	.e_machine = EM_H8_300,
+	.regsets = h8300_regsets,
+	.n = ARRAY_SIZE(h8300_regsets),
+};
+
+const struct user_regset_view *task_user_regset_view(struct task_struct *task)
+{
+	return &user_h8300_native_view;
+}
+
+void ptrace_disable(struct task_struct *child)
+{
+	user_disable_single_step(child);
+}
+
+long arch_ptrace(struct task_struct *child, long request,
+		 unsigned long addr, unsigned long data)
+{
+	int ret;
+
+	switch (request) {
+	default:
+		ret = ptrace_request(child, request, addr, data);
+		break;
+	}
+	return ret;
+}
+
+asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
+{
+	long ret = 0;
+
+	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
+	    tracehook_report_syscall_entry(regs))
+		/*
+		 * Tracing decided this syscall should not happen.
+		 * We'll return a bogus call number to get an ENOSYS
+		 * error, but leave the original number in regs->regs[0].
+		 */
+		ret = -1L;
+
+	audit_syscall_entry(regs->er1, regs->er2, regs->er3,
+			    regs->er4, regs->er5);
+
+	return ret ?: regs->er0;
+}
+
+asmlinkage void do_syscall_trace_leave(struct pt_regs *regs)
+{
+	int step;
+
+	audit_syscall_exit(regs);
+
+	step = test_thread_flag(TIF_SINGLESTEP);
+	if (step || test_thread_flag(TIF_SYSCALL_TRACE))
+		tracehook_report_syscall_exit(regs, step);
+}
diff --git a/arch/h8300/kernel/signal.c b/arch/h8300/kernel/signal.c
new file mode 100644
index 0000000..380fffd
--- /dev/null
+++ b/arch/h8300/kernel/signal.c
@@ -0,0 +1,289 @@
+/*
+ *  linux/arch/h8300/kernel/signal.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+/*
+ * uClinux H8/300 support by Yoshinori Sato <ysato@users.sourceforge.jp>
+ *                and David McCullough <davidm@snapgear.com>
+ *
+ * Based on
+ * Linux/m68k by Hamish Macdonald
+ */
+
+/*
+ * ++roman (07/09/96): implemented signal stacks (specially for tosemu on
+ * Atari :-) Current limitation: Only one sigstack can be active at one time.
+ * If a second signal with SA_ONSTACK set arrives while working on a sigstack,
+ * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested
+ * signal handlers!
+ */
+
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/kernel.h>
+#include <linux/signal.h>
+#include <linux/syscalls.h>
+#include <linux/errno.h>
+#include <linux/wait.h>
+#include <linux/ptrace.h>
+#include <linux/unistd.h>
+#include <linux/stddef.h>
+#include <linux/highuid.h>
+#include <linux/personality.h>
+#include <linux/tty.h>
+#include <linux/binfmts.h>
+#include <linux/tracehook.h>
+
+#include <asm/setup.h>
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/traps.h>
+#include <asm/ucontext.h>
+
+/*
+ * Do a signal return; undo the signal stack.
+ *
+ * Keep the return code on the stack quadword aligned!
+ * That makes the cache flush below easier.
+ */
+
+struct rt_sigframe {
+	long dummy_er0;
+	long dummy_vector;
+#if defined(CONFIG_CPU_H8S)
+	short dummy_exr;
+#endif
+	long dummy_pc;
+	char *pretcode;
+	struct siginfo *pinfo;
+	void *puc;
+	unsigned char retcode[8];
+	struct siginfo info;
+	struct ucontext uc;
+	int sig;
+} __packed __aligned(2);
+
+static inline int
+restore_sigcontext(struct sigcontext *usc, int *pd0)
+{
+	struct pt_regs *regs = current_pt_regs();
+	int err = 0;
+	unsigned int ccr;
+	unsigned int usp;
+	unsigned int er0;
+
+	/* Always make any pending restarted system calls return -EINTR */
+	current_thread_info()->restart_block.fn = do_no_restart_syscall;
+
+	/* restore passed registers */
+#define COPY(r)  do { err |= get_user(regs->r, &usc->sc_##r); } while (0)
+	COPY(er1);
+	COPY(er2);
+	COPY(er3);
+	COPY(er5);
+	COPY(pc);
+	ccr = regs->ccr & 0x10;
+	COPY(ccr);
+#undef COPY
+	regs->ccr &= 0xef;
+	regs->ccr |= ccr;
+	regs->orig_er0 = -1;		/* disable syscall checks */
+	err |= __get_user(usp, &usc->sc_usp);
+	wrusp(usp);
+
+	err |= __get_user(er0, &usc->sc_er0);
+	*pd0 = er0;
+	return err;
+}
+
+asmlinkage int sys_rt_sigreturn(void)
+{
+	unsigned long usp = rdusp();
+	struct rt_sigframe *frame = (struct rt_sigframe *)(usp - 4);
+	sigset_t set;
+	int er0;
+
+	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+		goto badframe;
+	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+		goto badframe;
+
+	set_current_blocked(&set);
+
+	if (restore_sigcontext(&frame->uc.uc_mcontext, &er0))
+		goto badframe;
+
+	if (restore_altstack(&frame->uc.uc_stack))
+		goto badframe;
+
+	return er0;
+
+badframe:
+	force_sig(SIGSEGV, current);
+	return 0;
+}
+
+static int setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
+			     unsigned long mask)
+{
+	int err = 0;
+
+	err |= __put_user(regs->er0, &sc->sc_er0);
+	err |= __put_user(regs->er1, &sc->sc_er1);
+	err |= __put_user(regs->er2, &sc->sc_er2);
+	err |= __put_user(regs->er3, &sc->sc_er3);
+	err |= __put_user(regs->er4, &sc->sc_er4);
+	err |= __put_user(regs->er5, &sc->sc_er5);
+	err |= __put_user(regs->er6, &sc->sc_er6);
+	err |= __put_user(rdusp(),   &sc->sc_usp);
+	err |= __put_user(regs->pc,  &sc->sc_pc);
+	err |= __put_user(regs->ccr, &sc->sc_ccr);
+	err |= __put_user(mask,      &sc->sc_mask);
+
+	return err;
+}
+
+static inline void __user *
+get_sigframe(struct ksignal *ksig, struct pt_regs *regs, size_t frame_size)
+{
+	return (void __user *)((sigsp(rdusp(), ksig) - frame_size) & -8UL);
+}
+
+static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
+			  struct pt_regs *regs)
+{
+	struct rt_sigframe *frame;
+	int err = 0;
+	unsigned char *ret;
+
+	frame = get_sigframe(ksig, regs, sizeof(*frame));
+
+	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
+		return -EFAULT;
+
+	if (ksig->ka.sa.sa_flags & SA_SIGINFO)
+		err |= copy_siginfo_to_user(&frame->info, &ksig->info);
+
+	/* Create the ucontext.  */
+	err |= __put_user(0, &frame->uc.uc_flags);
+	err |= __put_user(0, &frame->uc.uc_link);
+	err |= __save_altstack(&frame->uc.uc_stack, rdusp());
+	err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]);
+	err |= copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+	if (err)
+		return -EFAULT;
+
+	/* Set up to return from userspace.  */
+	ret = frame->retcode;
+	if (ksig->ka.sa.sa_flags & SA_RESTORER)
+		ret = (unsigned char *)(ksig->ka.sa.sa_restorer);
+	else {
+		/* sub.l er0,er0; mov.b #__NR_rt_sigreturn,r0l; trapa #0 */
+		err |= __put_user(0x1a80f800 + (__NR_rt_sigreturn & 0xff),
+				  (unsigned long *)(frame->retcode + 0));
+		err |= __put_user(0x5700,
+				  (unsigned short *)(frame->retcode + 4));
+	}
+	err |= __put_user(ret, &frame->pretcode);
+
+	if (err)
+		return -EFAULT;
+
+	/* Set up registers for signal handler */
+	wrusp((unsigned long) frame);
+	regs->pc  = (unsigned long) ksig->ka.sa.sa_handler;
+	regs->er0 = ksig->sig;
+	regs->er1 = (unsigned long)&(frame->info);
+	regs->er2 = (unsigned long)&frame->uc;
+	regs->er5 = current->mm->start_data;	/* GOT base */
+
+	return 0;
+}
+
+static void
+handle_restart(struct pt_regs *regs, struct k_sigaction *ka)
+{
+	switch (regs->er0) {
+	case -ERESTARTNOHAND:
+		if (!ka)
+			goto do_restart;
+		regs->er0 = -EINTR;
+		break;
+	case -ERESTART_RESTARTBLOCK:
+		if (!ka) {
+			regs->er0 = __NR_restart_syscall;
+			regs->pc -= 2;
+		} else
+			regs->er0 = -EINTR;
+		break;
+	case -ERESTARTSYS:
+		if (!(ka->sa.sa_flags & SA_RESTART)) {
+			regs->er0 = -EINTR;
+			break;
+		}
+		/* fallthrough */
+	case -ERESTARTNOINTR:
+do_restart:
+		regs->er0 = regs->orig_er0;
+		regs->pc -= 2;
+		break;
+	}
+}
+
+/*
+ * OK, we're invoking a handler
+ */
+static void
+handle_signal(struct ksignal *ksig, struct pt_regs *regs)
+{
+	sigset_t *oldset = sigmask_to_save();
+	int ret;
+	/* are we from a system call? */
+	if (regs->orig_er0 >= 0)
+		handle_restart(regs, &ksig->ka);
+
+	ret = setup_rt_frame(ksig, oldset, regs);
+
+	signal_setup_done(ret, ksig, 0);
+}
+
+/*
+ * Note that 'init' is a special process: it doesn't get signals it doesn't
+ * want to handle. Thus you cannot kill init even with a SIGKILL even by
+ * mistake.
+ */
+static void do_signal(struct pt_regs *regs)
+{
+	struct ksignal ksig;
+
+	current->thread.esp0 = (unsigned long) regs;
+
+	if (get_signal(&ksig)) {
+		/* Whee!  Actually deliver the signal.  */
+		handle_signal(&ksig, regs);
+		return;
+	}
+	/* Did we come from a system call? */
+	if (regs->orig_er0 >= 0)
+		handle_restart(regs, NULL);
+
+	/* If there's no signal to deliver, we just restore the saved mask.  */
+	restore_saved_sigmask();
+}
+
+asmlinkage void do_notify_resume(struct pt_regs *regs, u32 thread_info_flags)
+{
+	if (thread_info_flags & _TIF_SIGPENDING)
+		do_signal(regs);
+
+	if (thread_info_flags & _TIF_NOTIFY_RESUME) {
+		clear_thread_flag(TIF_NOTIFY_RESUME);
+		tracehook_notify_resume(regs);
+	}
+}
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 06/16] h8300: CPU depend helpers
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
                   ` (4 preceding siblings ...)
  2015-03-09  8:46 ` [PATCH v6 05/16] h8300: Process and signal Yoshinori Sato
@ 2015-03-09  8:47 ` Yoshinori Sato
  2015-03-09 16:21   ` Joe Perches
  2015-03-09  8:47 ` [PATCH v6 07/16] h8300: miscellaneous functions Yoshinori Sato
                   ` (10 subsequent siblings)
  16 siblings, 1 reply; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:47 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 arch/h8300/kernel/cpu/Makefile         |   4 +
 arch/h8300/kernel/cpu/h83069/Makefile  |   1 +
 arch/h8300/kernel/cpu/h83069/setup.c   | 202 ++++++++++++++++++++++++++
 arch/h8300/kernel/cpu/h8s2678/Makefile |   1 +
 arch/h8300/kernel/cpu/h8s2678/setup.c  | 161 +++++++++++++++++++++
 arch/h8300/kernel/cpu/irq_h.c          |  62 ++++++++
 arch/h8300/kernel/cpu/irq_s.c          |  70 +++++++++
 arch/h8300/kernel/cpu/ptrace_h.c       | 256 +++++++++++++++++++++++++++++++++
 arch/h8300/kernel/cpu/ptrace_s.c       |  44 ++++++
 9 files changed, 801 insertions(+)
 create mode 100644 arch/h8300/kernel/cpu/Makefile
 create mode 100644 arch/h8300/kernel/cpu/h83069/Makefile
 create mode 100644 arch/h8300/kernel/cpu/h83069/setup.c
 create mode 100644 arch/h8300/kernel/cpu/h8s2678/Makefile
 create mode 100644 arch/h8300/kernel/cpu/h8s2678/setup.c
 create mode 100644 arch/h8300/kernel/cpu/irq_h.c
 create mode 100644 arch/h8300/kernel/cpu/irq_s.c
 create mode 100644 arch/h8300/kernel/cpu/ptrace_h.c
 create mode 100644 arch/h8300/kernel/cpu/ptrace_s.c

diff --git a/arch/h8300/kernel/cpu/Makefile b/arch/h8300/kernel/cpu/Makefile
new file mode 100644
index 0000000..684475c
--- /dev/null
+++ b/arch/h8300/kernel/cpu/Makefile
@@ -0,0 +1,4 @@
+obj-$(CONFIG_CPU_H8300H) += ptrace_h.o irq_h.o
+obj-$(CONFIG_CPU_H8S) += ptrace_s.o irq_s.o
+obj-$(CONFIG_H83069) += h83069/
+obj-$(CONFIG_H8S2678) += h8s2678/
diff --git a/arch/h8300/kernel/cpu/h83069/Makefile b/arch/h8300/kernel/cpu/h83069/Makefile
new file mode 100644
index 0000000..49d283e
--- /dev/null
+++ b/arch/h8300/kernel/cpu/h83069/Makefile
@@ -0,0 +1 @@
+obj-y = setup.o
diff --git a/arch/h8300/kernel/cpu/h83069/setup.c b/arch/h8300/kernel/cpu/h83069/setup.c
new file mode 100644
index 0000000..99c2716
--- /dev/null
+++ b/arch/h8300/kernel/cpu/h83069/setup.c
@@ -0,0 +1,202 @@
+/*
+ * H8/3069 Internal peripheral setup
+ *
+ *  Copyright (C) 2009,2014 Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/serial_sci.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <asm/timer.h>
+
+static struct resource sci0_resources[] = {
+	DEFINE_RES_MEM(0xffffb0, 8),
+	DEFINE_RES_IRQ(52),
+	DEFINE_RES_IRQ(53),
+	DEFINE_RES_IRQ(54),
+	DEFINE_RES_IRQ(55),
+};
+
+
+static struct plat_sci_port sci0_platform_data = {
+	.flags		= UPF_BOOT_AUTOCONF,
+	.scscr		= SCSCR_RE | SCSCR_TE,
+	.type		= PORT_SCI,
+};
+
+static struct resource sci1_resources[] = {
+	DEFINE_RES_MEM(0xffffb8, 8),
+	DEFINE_RES_IRQ(56),
+	DEFINE_RES_IRQ(57),
+	DEFINE_RES_IRQ(58),
+	DEFINE_RES_IRQ(59),
+};
+
+static struct plat_sci_port sci1_platform_data = {
+	.flags		= UPF_BOOT_AUTOCONF,
+	.scscr		= SCSCR_RE | SCSCR_TE,
+	.type		= PORT_SCI,
+};
+
+static struct platform_device sci0_device = {
+	.name		= "sh-sci",
+	.id		= 0,
+	.resource	= sci0_resources,
+	.num_resources	= ARRAY_SIZE(sci0_resources),
+	.dev		= {
+		.platform_data	= &sci0_platform_data,
+	},
+};
+
+static struct platform_device sci1_device = {
+	.name		= "sh-sci",
+	.id		= 1,
+	.resource	= sci1_resources,
+	.num_resources	= ARRAY_SIZE(sci1_resources),
+	.dev		= {
+		.platform_data	= &sci1_platform_data,
+	},
+};
+
+static struct h8300_timer8_config tm8_unit0_platform_data = {
+	.mode	= H8300_TMR8_CLKEVTDEV,
+	.div	= H8300_TMR8_DIV_8,
+};
+
+static struct resource tm8_unit0_resources[] = {
+	DEFINE_RES_MEM(0xffff80, 9),
+	DEFINE_RES_IRQ(36),
+	DEFINE_RES_IRQ(39),
+};
+
+static struct platform_device timer8_unit0_device = {
+	.name		= "h8300-8timer",
+	.id		= 0,
+	.dev = {
+		.platform_data	= &tm8_unit0_platform_data,
+	},
+	.resource	= tm8_unit0_resources,
+	.num_resources	= ARRAY_SIZE(tm8_unit0_resources),
+};
+
+static struct h8300_timer8_config tm8_unit1_platform_data = {
+	.mode	= H8300_TMR8_CLKSRC,
+	.div	= H8300_TMR8_DIV_8,
+};
+
+static struct resource tm8_unit1_resources[] = {
+	DEFINE_RES_MEM(0xffff90, 9),
+	DEFINE_RES_IRQ(40),
+	DEFINE_RES_IRQ(43),
+};
+
+static struct platform_device timer8_unit1_device = {
+	.name		= "h8300-8timer",
+	.id		= 1,
+	.dev = {
+		.platform_data	= &tm8_unit1_platform_data,
+	},
+	.resource	= tm8_unit1_resources,
+	.num_resources	= ARRAY_SIZE(tm8_unit1_resources),
+};
+
+
+static struct h8300_timer16_config timer16data0 = {
+	.enb	= 0,
+	.imfa	= 0,
+	.imiea	= 4,
+};
+
+static struct h8300_timer16_config timer16data1 = {
+	.enb	= 1,
+	.imfa	= 1,
+	.imiea	= 5,
+};
+
+static struct h8300_timer16_config timer16data2 = {
+	.enb	= 2,
+	.imfa	= 2,
+	.imiea	= 6,
+};
+
+static struct resource tm16ch0_resources[] = {
+	DEFINE_RES_MEM(0xffff68, 8),
+	DEFINE_RES_MEM(0xffff60, 7),
+	DEFINE_RES_IRQ(24),
+};
+
+static struct resource tm16ch1_resources[] = {
+	DEFINE_RES_MEM(0xffff70, 8),
+	DEFINE_RES_MEM(0xffff60, 7),
+	DEFINE_RES_IRQ(28),
+};
+
+static struct resource tm16ch2_resources[] = {
+	DEFINE_RES_MEM(0xffff78, 8),
+	DEFINE_RES_MEM(0xffff60, 7),
+	DEFINE_RES_IRQ(32),
+};
+
+static struct platform_device timer16_ch0_device = {
+	.name	= "h8300h-16timer",
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &timer16data0,
+	},
+	.resource	= tm16ch0_resources,
+	.num_resources	= ARRAY_SIZE(tm16ch0_resources),
+};
+
+static struct platform_device timer16_ch1_device = {
+	.name	= "h8300h-16timer",
+	.id		= 1,
+	.dev		= {
+		.platform_data	= &timer16data1,
+	},
+	.resource	= tm16ch1_resources,
+	.num_resources	= ARRAY_SIZE(tm16ch1_resources),
+};
+
+static struct platform_device timer16_ch2_device = {
+	.name	= "h8300h-16timer",
+	.id		= 2,
+	.dev		= {
+		.platform_data	= &timer16data2,
+	},
+	.resource	= tm16ch2_resources,
+	.num_resources	= ARRAY_SIZE(tm16ch2_resources),
+};
+
+static struct platform_device *devices[] __initdata = {
+	&timer8_unit1_device,
+	&timer16_ch0_device,
+	&timer16_ch1_device,
+	&timer16_ch2_device,
+	&sci0_device,
+	&sci1_device,
+};
+
+static struct platform_device *early_devices[] __initdata = {
+	&timer8_unit0_device,
+	&sci0_device,
+	&sci1_device,
+};
+
+static int __init devices_register(void)
+{
+	return platform_add_devices(devices,
+				    ARRAY_SIZE(devices));
+}
+
+arch_initcall(devices_register);
+
+void __init early_device_init(void)
+{
+	early_platform_add_devices(early_devices,
+				   ARRAY_SIZE(early_devices));
+}
diff --git a/arch/h8300/kernel/cpu/h8s2678/Makefile b/arch/h8300/kernel/cpu/h8s2678/Makefile
new file mode 100644
index 0000000..49d283e
--- /dev/null
+++ b/arch/h8300/kernel/cpu/h8s2678/Makefile
@@ -0,0 +1 @@
+obj-y = setup.o
diff --git a/arch/h8300/kernel/cpu/h8s2678/setup.c b/arch/h8300/kernel/cpu/h8s2678/setup.c
new file mode 100644
index 0000000..ea743ec
--- /dev/null
+++ b/arch/h8300/kernel/cpu/h8s2678/setup.c
@@ -0,0 +1,161 @@
+/*
+ * H8S2678 Internal peripheral setup
+ *
+ *  Copyright (C) 2014  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/serial_sci.h>
+#include <asm/timer.h>
+
+static struct resource sci0_resources[] = {
+	DEFINE_RES_MEM(0xffff78, 8),
+	DEFINE_RES_IRQ(88),
+	DEFINE_RES_IRQ(89),
+	DEFINE_RES_IRQ(90),
+	DEFINE_RES_IRQ(91),
+};
+
+
+static struct plat_sci_port sci0_platform_data = {
+	.flags		= UPF_BOOT_AUTOCONF,
+	.scscr		= SCSCR_RE | SCSCR_TE,
+	.type		= PORT_SCI,
+};
+
+static struct resource sci1_resources[] = {
+	DEFINE_RES_MEM(0xffff80, 8),
+	DEFINE_RES_IRQ(92),
+	DEFINE_RES_IRQ(93),
+	DEFINE_RES_IRQ(94),
+	DEFINE_RES_IRQ(95),
+};
+
+static struct plat_sci_port sci1_platform_data = {
+	.flags		= UPF_BOOT_AUTOCONF,
+	.scscr		= SCSCR_RE | SCSCR_TE,
+	.type		= PORT_SCI,
+};
+
+static struct resource sci2_resources[] = {
+	DEFINE_RES_MEM(0xffff88, 8),
+	DEFINE_RES_IRQ(96),
+	DEFINE_RES_IRQ(97),
+	DEFINE_RES_IRQ(98),
+	DEFINE_RES_IRQ(99),
+};
+
+static struct plat_sci_port sci2_platform_data = {
+	.flags		= UPF_BOOT_AUTOCONF,
+	.scscr		= SCSCR_RE | SCSCR_TE,
+	.type		= PORT_SCI,
+};
+
+static struct platform_device sci0_device = {
+	.name		= "sh-sci",
+	.id		= 0,
+	.resource	= sci0_resources,
+	.num_resources	= ARRAY_SIZE(sci0_resources),
+	.dev		= {
+		.platform_data	= &sci0_platform_data,
+	},
+};
+
+static struct platform_device sci1_device = {
+	.name		= "sh-sci",
+	.id		= 1,
+	.resource	= sci1_resources,
+	.num_resources	= ARRAY_SIZE(sci1_resources),
+	.dev		= {
+		.platform_data	= &sci1_platform_data,
+	},
+};
+
+static struct platform_device sci2_device = {
+	.name		= "sh-sci",
+	.id		= 2,
+	.resource	= sci2_resources,
+	.num_resources	= ARRAY_SIZE(sci2_resources),
+	.dev		= {
+		.platform_data	= &sci2_platform_data,
+	},
+};
+
+static struct h8300_timer8_config timer8_platform_data = {
+	.mode	= H8300_TMR8_CLKEVTDEV,
+	.div	= H8300_TMR8_DIV_8,
+};
+
+static struct resource tm8_unit0_resources[] = {
+	DEFINE_RES_MEM(0xffffb0, 10),
+	DEFINE_RES_IRQ(72),
+	DEFINE_RES_IRQ(75),
+};
+
+static struct platform_device tm8_unit0_device = {
+	.name		= "h8300-8timer",
+	.id		= 0,
+	.dev = {
+		.platform_data	= &timer8_platform_data,
+	},
+	.resource	= tm8_unit0_resources,
+	.num_resources	= ARRAY_SIZE(tm8_unit0_resources),
+};
+
+static struct resource tpu12_resources[] = {
+	DEFINE_RES_MEM(0xffffe0, 16),
+	DEFINE_RES_MEM(0xfffff0, 12),
+};
+
+static struct resource tpu45_resources[] = {
+	DEFINE_RES_MEM(0xfffe90, 16),
+	DEFINE_RES_MEM(0xfffea0, 12),
+};
+
+static struct platform_device tpu12_device = {
+	.name	= "h8s-tpu",
+	.id		= 0,
+	.resource	= tpu12_resources,
+	.num_resources	= ARRAY_SIZE(tpu12_resources),
+};
+
+static struct platform_device tpu45_device = {
+	.name	= "h8s-tpu",
+	.id		= 1,
+	.resource	= tpu45_resources,
+	.num_resources	= ARRAY_SIZE(tpu45_resources),
+};
+
+static struct platform_device *devices[] __initdata = {
+	&tpu12_device,
+	&tpu45_device,
+	&sci0_device,
+	&sci1_device,
+	&sci2_device,
+};
+
+static struct platform_device *early_devices[] __initdata = {
+	&tm8_unit0_device,
+	&sci0_device,
+	&sci1_device,
+	&sci2_device,
+};
+
+static int __init devices_register(void)
+{
+	return platform_add_devices(devices,
+				    ARRAY_SIZE(devices));
+}
+arch_initcall(devices_register);
+
+void __init early_device_init(void)
+{
+	/* SCI / Timer enable */
+	ctrl_outw(0x07f0, 0xffff40);
+	early_platform_add_devices(early_devices,
+				   ARRAY_SIZE(early_devices));
+}
diff --git a/arch/h8300/kernel/cpu/irq_h.c b/arch/h8300/kernel/cpu/irq_h.c
new file mode 100644
index 0000000..90021d8
--- /dev/null
+++ b/arch/h8300/kernel/cpu/irq_h.c
@@ -0,0 +1,62 @@
+/*
+ * linux/arch/h8300/kernel/irq_h.c
+ *
+ * Copyright 2014 Yoshinori Sato <ysato@users.sourceforge.jp>
+ */
+
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <asm/io.h>
+
+static const char ipr_bit[] = {
+	 7,  6,  5,  5,
+	 4,  4,  4,  4,  3,  3,  3,  3,
+	 2,  2,  2,  2,  1,  1,  1,  1,
+	 0,  0,  0,  0, 15, 15, 15, 15,
+	14, 14, 14, 14, 13, 13, 13, 13,
+	-1, -1, -1, -1, 11, 11, 11, 11,
+	10, 10, 10, 10,  9,  9,  9,  9,
+};
+
+#define IPR 0xffee18
+
+static void h8300h_disable_irq(struct irq_data *data)
+{
+	int bit;
+	int irq = data->irq - 12;
+
+	bit = ipr_bit[irq];
+	if (bit >= 0) {
+		if (bit < 8)
+			ctrl_bclr(bit & 7, IPR);
+		else
+			ctrl_bclr(bit & 7, (IPR+1));
+	}
+}
+
+static void h8300h_enable_irq(struct irq_data *data)
+{
+	int bit;
+	int irq = data->irq - 12;
+
+	bit = ipr_bit[irq];
+	if (bit >= 0) {
+		if (bit < 8)
+			ctrl_bset(bit & 7, IPR);
+		else
+			ctrl_bset(bit & 7, (IPR+1));
+	}
+}
+
+struct irq_chip h8300h_irq_chip = {
+	.name		= "H8/300H-INTC",
+	.irq_enable	= h8300h_enable_irq,
+	.irq_disable	= h8300h_disable_irq,
+};
+
+void __init h8300_init_ipr(void)
+{
+	/* All interrupt priority high */
+	ctrl_outb(0xff, IPR + 0);
+	ctrl_outb(0xee, IPR + 1);
+}
diff --git a/arch/h8300/kernel/cpu/irq_s.c b/arch/h8300/kernel/cpu/irq_s.c
new file mode 100644
index 0000000..71c322e
--- /dev/null
+++ b/arch/h8300/kernel/cpu/irq_s.c
@@ -0,0 +1,70 @@
+/*
+ * linux/arch/h8300/kernel/irq_s.c
+ *
+ * Copyright 2014 Yoshinori Sato <ysato@users.sourceforge.jp>
+ */
+
+#include <linux/irq.h>
+#include <asm/io.h>
+#define IPRA 0xfffe00
+
+static const unsigned char ipr_table[] = {
+	0x03, 0x02, 0x01, 0x00, 0x13, 0x12, 0x11, 0x10, /* 16 - 23 */
+	0x23, 0x22, 0x21, 0x20, 0x33, 0x32, 0x31, 0x30, /* 24 - 31 */
+	0x43, 0x42, 0x41, 0x40, 0x53, 0x53, 0x52, 0x52, /* 32 - 39 */
+	0x51, 0x51, 0x51, 0x51, 0x51, 0x51, 0x51, 0x51, /* 40 - 47 */
+	0x50, 0x50, 0x50, 0x50, 0x63, 0x63, 0x63, 0x63, /* 48 - 55 */
+	0x62, 0x62, 0x62, 0x62, 0x62, 0x62, 0x62, 0x62, /* 56 - 63 */
+	0x61, 0x61, 0x61, 0x61, 0x60, 0x60, 0x60, 0x60, /* 64 - 71 */
+	0x73, 0x73, 0x73, 0x73, 0x72, 0x72, 0x72, 0x72, /* 72 - 79 */
+	0x71, 0x71, 0x71, 0x71, 0x70, 0x83, 0x82, 0x81, /* 80 - 87 */
+	0x80, 0x80, 0x80, 0x80, 0x93, 0x93, 0x93, 0x93, /* 88 - 95 */
+	0x92, 0x92, 0x92, 0x92, 0x91, 0x91, 0x91, 0x91, /* 96 - 103 */
+	0x90, 0x90, 0x90, 0x90, 0xa3, 0xa3, 0xa3, 0xa3, /* 104 - 111 */
+	0xa2, 0xa2, 0xa2, 0xa2, 0xa1, 0xa1, 0xa1, 0xa1, /* 112 - 119 */
+	0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, /* 120 - 127 */
+};
+
+static void h8s_disable_irq(struct irq_data *data)
+{
+	int pos;
+	unsigned int addr;
+	unsigned short pri;
+	int irq = data->irq;
+
+	addr = IPRA + ((ipr_table[irq - 16] & 0xf0) >> 3);
+	pos = (ipr_table[irq - 16] & 0x0f) * 4;
+	pri = ~(0x000f << pos);
+	pri &= ctrl_inw(addr);
+	ctrl_outw(pri, addr);
+}
+
+static void h8s_enable_irq(struct irq_data *data)
+{
+	int pos;
+	unsigned int addr;
+	unsigned short pri;
+	int irq = data->irq;
+
+	addr = IPRA + ((ipr_table[irq - 16] & 0xf0) >> 3);
+	pos = (ipr_table[irq - 16] & 0x0f) * 4;
+	pri = ~(0x000f << pos);
+	pri &= ctrl_inw(addr);
+	pri |= 1 << pos;
+	ctrl_outw(pri, addr);
+}
+
+struct irq_chip h8s_irq_chip = {
+	.name		= "H8S-INTC",
+	.irq_enable	= h8s_enable_irq,
+	.irq_disable	= h8s_disable_irq,
+};
+
+void __init h8300_init_ipr(void)
+{
+	int n;
+	/* All interrupt priority is 1 */
+	/* IPRA to IPRK */
+	for (n = 0; n <= 'k' - 'a'; n++)
+		ctrl_outw(0x1111, IPRA + (n * 2));
+}
diff --git a/arch/h8300/kernel/cpu/ptrace_h.c b/arch/h8300/kernel/cpu/ptrace_h.c
new file mode 100644
index 0000000..fe3b567
--- /dev/null
+++ b/arch/h8300/kernel/cpu/ptrace_h.c
@@ -0,0 +1,256 @@
+/*
+ *    ptrace cpu depend helper functions
+ *
+ *  Copyright 2003, 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of
+ * this archive for more details.
+ */
+
+#include <linux/linkage.h>
+#include <linux/sched.h>
+#include <asm/ptrace.h>
+
+#define BREAKINST 0x5730 /* trapa #3 */
+
+/* disable singlestep */
+void user_disable_single_step(struct task_struct *child)
+{
+	if ((long)child->thread.breakinfo.addr != -1L) {
+		*(child->thread.breakinfo.addr) = child->thread.breakinfo.inst;
+		child->thread.breakinfo.addr = (unsigned short *)-1L;
+	}
+}
+
+/* calculate next pc */
+enum jump_type {none,	 /* normal instruction */
+		jabs,	 /* absolute address jump */
+		ind,	 /* indirect address jump */
+		ret,	 /* return to subrutine */
+		reg,	 /* register indexed jump */
+		relb,	 /* pc relative jump (byte offset) */
+		relw,	 /* pc relative jump (word offset) */
+	       };
+
+/* opcode decode table define
+   ptn: opcode pattern
+   msk: opcode bitmask
+   len: instruction length (<0 next table index)
+   jmp: jump operation mode */
+struct optable {
+	unsigned char bitpattern;
+	unsigned char bitmask;
+	signed char length;
+	signed char type;
+} __packed __aligned(1);
+
+#define OPTABLE(ptn, msk, len, jmp)	\
+	{				\
+		.bitpattern = ptn,	\
+		.bitmask    = msk,	\
+		.length	    = len,	\
+		.type	    = jmp,	\
+	}
+
+static const struct optable optable_0[] = {
+	OPTABLE(0x00, 0xff,  1, none), /* 0x00 */
+	OPTABLE(0x01, 0xff, -1, none), /* 0x01 */
+	OPTABLE(0x02, 0xfe,  1, none), /* 0x02-0x03 */
+	OPTABLE(0x04, 0xee,  1, none), /* 0x04-0x05/0x14-0x15 */
+	OPTABLE(0x06, 0xfe,  1, none), /* 0x06-0x07 */
+	OPTABLE(0x08, 0xea,  1, none), /* 0x08-0x09/0x0c-0x0d/0x18-0x19/0x1c-0x1d */
+	OPTABLE(0x0a, 0xee,  1, none), /* 0x0a-0x0b/0x1a-0x1b */
+	OPTABLE(0x0e, 0xee,  1, none), /* 0x0e-0x0f/0x1e-0x1f */
+	OPTABLE(0x10, 0xfc,  1, none), /* 0x10-0x13 */
+	OPTABLE(0x16, 0xfe,  1, none), /* 0x16-0x17 */
+	OPTABLE(0x20, 0xe0,  1, none), /* 0x20-0x3f */
+	OPTABLE(0x40, 0xf0,  1, relb), /* 0x40-0x4f */
+	OPTABLE(0x50, 0xfc,  1, none), /* 0x50-0x53 */
+	OPTABLE(0x54, 0xfd,  1, ret), /* 0x54/0x56 */
+	OPTABLE(0x55, 0xff,  1, relb), /* 0x55 */
+	OPTABLE(0x57, 0xff,  1, none), /* 0x57 */
+	OPTABLE(0x58, 0xfb,  2, relw), /* 0x58/0x5c */
+	OPTABLE(0x59, 0xfb,  1, reg), /* 0x59/0x5b */
+	OPTABLE(0x5a, 0xfb,  2, jabs), /* 0x5a/0x5e */
+	OPTABLE(0x5b, 0xfb,  2, ind), /* 0x5b/0x5f */
+	OPTABLE(0x60, 0xe8,  1, none), /* 0x60-0x67/0x70-0x77 */
+	OPTABLE(0x68, 0xfa,  1, none), /* 0x68-0x69/0x6c-0x6d */
+	OPTABLE(0x6a, 0xfe, -2, none), /* 0x6a-0x6b */
+	OPTABLE(0x6e, 0xfe,  2, none), /* 0x6e-0x6f */
+	OPTABLE(0x78, 0xff,  4, none), /* 0x78 */
+	OPTABLE(0x79, 0xff,  2, none), /* 0x79 */
+	OPTABLE(0x7a, 0xff,  3, none), /* 0x7a */
+	OPTABLE(0x7b, 0xff,  2, none), /* 0x7b */
+	OPTABLE(0x7c, 0xfc,  2, none), /* 0x7c-0x7f */
+	OPTABLE(0x80, 0x80,  1, none), /* 0x80-0xff */
+};
+
+static const struct optable optable_1[] = {
+	OPTABLE(0x00, 0xff, -3, none), /* 0x0100 */
+	OPTABLE(0x40, 0xf0, -3, none), /* 0x0140-0x14f */
+	OPTABLE(0x80, 0xf0,  1, none), /* 0x0180-0x018f */
+	OPTABLE(0xc0, 0xc0,  2, none), /* 0x01c0-0x01ff */
+};
+
+static const struct optable optable_2[] = {
+	OPTABLE(0x00, 0x20,  2, none), /* 0x6a0?/0x6a8?/0x6b0?/0x6b8? */
+	OPTABLE(0x20, 0x20,  3, none), /* 0x6a2?/0x6aa?/0x6b2?/0x6ba? */
+};
+
+static const struct optable optable_3[] = {
+	OPTABLE(0x69, 0xfb,  2, none), /* 0x010069/0x01006d/014069/0x01406d */
+	OPTABLE(0x6b, 0xff, -4, none), /* 0x01006b/0x01406b */
+	OPTABLE(0x6f, 0xff,  3, none), /* 0x01006f/0x01406f */
+	OPTABLE(0x78, 0xff,  5, none), /* 0x010078/0x014078 */
+};
+
+static const struct optable optable_4[] = {
+/* 0x0100690?/0x01006d0?/0140690?/0x01406d0?/
+   0x0100698?/0x01006d8?/0140698?/0x01406d8? */
+	OPTABLE(0x00, 0x78, 3, none),
+/* 0x0100692?/0x01006d2?/0140692?/0x01406d2?/
+   0x010069a?/0x01006da?/014069a?/0x01406da? */
+	OPTABLE(0x20, 0x78, 4, none),
+};
+
+static const struct optables_list {
+	const struct optable *ptr;
+	int size;
+} optables[] = {
+#define OPTABLES(no)                                                   \
+	{                                                              \
+		.ptr  = optable_##no,                                  \
+		.size = sizeof(optable_##no) / sizeof(struct optable), \
+	}
+	OPTABLES(0),
+	OPTABLES(1),
+	OPTABLES(2),
+	OPTABLES(3),
+	OPTABLES(4),
+
+};
+
+const unsigned char condmask[] = {
+	0x00, 0x40, 0x01, 0x04, 0x02, 0x08, 0x10, 0x20
+};
+
+static int isbranch(struct task_struct *task, int reson)
+{
+	unsigned char cond = h8300_get_reg(task, PT_CCR);
+
+	/* encode complex conditions */
+	/* B4: N^V
+	   B5: Z|(N^V)
+	   B6: C|Z */
+	__asm__("bld #3,%w0\n\t"
+		"bxor #1,%w0\n\t"
+		"bst #4,%w0\n\t"
+		"bor #2,%w0\n\t"
+		"bst #5,%w0\n\t"
+		"bld #2,%w0\n\t"
+		"bor #0,%w0\n\t"
+		"bst #6,%w0\n\t"
+		: "=&r"(cond) : "0"(cond) : "cc");
+	cond &= condmask[reson >> 1];
+	if (!(reson & 1))
+		return cond == 0;
+	else
+		return cond != 0;
+}
+
+static unsigned short *decode(struct task_struct *child,
+			      const struct optable *op,
+			      char *fetch_p, unsigned short *pc,
+			      unsigned char inst)
+{
+	unsigned long addr;
+	unsigned long *sp;
+	int regno;
+
+	switch (op->type) {
+	case none:
+		return (unsigned short *)pc + op->length;
+	case jabs:
+		addr = *(unsigned long *)pc;
+		return (unsigned short *)(addr & 0x00ffffff);
+	case ind:
+		addr = *pc & 0xff;
+		return (unsigned short *)(*(unsigned long *)addr);
+	case ret:
+		sp = (unsigned long *)h8300_get_reg(child, PT_USP);
+		/* user stack frames
+		   |   er0  | temporary saved
+		   +--------+
+		   |   exp  | exception stack frames
+		   +--------+
+		   | ret pc | userspace return address
+		*/
+		return (unsigned short *)(*(sp+2) & 0x00ffffff);
+	case reg:
+		regno = (*pc >> 4) & 0x07;
+		if (regno == 0)
+			addr = h8300_get_reg(child, PT_ER0);
+		else
+			addr = h8300_get_reg(child, regno-1 + PT_ER1);
+		return (unsigned short *)addr;
+	case relb:
+		if (inst == 0x55 || isbranch(child, inst & 0x0f))
+			pc = (unsigned short *)((unsigned long)pc +
+						((signed char)(*fetch_p)));
+		return pc+1; /* skip myself */
+	case relw:
+		if (inst == 0x5c || isbranch(child, (*fetch_p & 0xf0) >> 4))
+			pc = (unsigned short *)((unsigned long)pc +
+						((signed short)(*(pc+1))));
+		return pc+2; /* skip myself */
+	default:
+		return NULL;
+	}
+}
+
+static unsigned short *nextpc(struct task_struct *child, unsigned short *pc)
+{
+	const struct optable *op;
+	unsigned char *fetch_p;
+	int op_len;
+	unsigned char inst;
+
+	op = optables[0].ptr;
+	op_len = optables[0].size;
+	fetch_p = (unsigned char *)pc;
+	inst = *fetch_p++;
+	do {
+		if ((inst & op->bitmask) == op->bitpattern) {
+			if (op->length < 0) {
+				op = optables[-op->length].ptr;
+				op_len = optables[-op->length].size + 1;
+				inst = *fetch_p++;
+			} else
+				return decode(child, op, fetch_p, pc, inst);
+		} else
+			op++;
+	} while (--op_len > 0);
+	return NULL;
+}
+
+/* Set breakpoint(s) to simulate a single step from the current PC.  */
+
+void user_enable_single_step(struct task_struct *child)
+{
+	unsigned short *next;
+
+	next = nextpc(child, (unsigned short *)h8300_get_reg(child, PT_PC));
+	child->thread.breakinfo.addr = next;
+	child->thread.breakinfo.inst = *next;
+	*next = BREAKINST;
+}
+
+asmlinkage void trace_trap(unsigned long bp)
+{
+	if ((unsigned long)current->thread.breakinfo.addr == bp) {
+		user_disable_single_step(current);
+		force_sig(SIGTRAP, current);
+	} else
+		force_sig(SIGILL, current);
+}
diff --git a/arch/h8300/kernel/cpu/ptrace_s.c b/arch/h8300/kernel/cpu/ptrace_s.c
new file mode 100644
index 0000000..ef5a9c1
--- /dev/null
+++ b/arch/h8300/kernel/cpu/ptrace_s.c
@@ -0,0 +1,44 @@
+/*
+ *  linux/arch/h8300/kernel/ptrace_h8s.c
+ *    ptrace cpu depend helper functions
+ *
+ *  Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of
+ * this archive for more details.
+ */
+
+#include <linux/linkage.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <asm/ptrace.h>
+
+#define CCR_MASK  0x6f
+#define EXR_TRACE 0x80
+
+/* disable singlestep */
+void user_disable_single_step(struct task_struct *child)
+{
+	unsigned char exr;
+
+	exr = h8300_get_reg(child, PT_EXR);
+	exr &= ~EXR_TRACE;
+	h8300_put_reg(child, PT_EXR, exr);
+}
+
+/* enable singlestep */
+void user_enable_single_step(struct task_struct *child)
+{
+	unsigned char exr;
+
+	exr = h8300_get_reg(child, PT_EXR);
+	exr |= EXR_TRACE;
+	h8300_put_reg(child, PT_EXR, exr);
+}
+
+asmlinkage void trace_trap(unsigned long bp)
+{
+	(void)bp;
+	force_sig(SIGTRAP, current);
+}
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 07/16] h8300: miscellaneous functions
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
                   ` (5 preceding siblings ...)
  2015-03-09  8:47 ` [PATCH v6 06/16] h8300: CPU depend helpers Yoshinori Sato
@ 2015-03-09  8:47 ` Yoshinori Sato
  2015-03-09  8:47 ` [PATCH v6 08/16] h8300: Memory management Yoshinori Sato
                   ` (9 subsequent siblings)
  16 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:47 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 arch/h8300/kernel/asm-offsets.c | 60 ++++++++++++++++++++++++++
 arch/h8300/kernel/dma.c         | 95 +++++++++++++++++++++++++++++++++++++++++
 arch/h8300/kernel/h8300_ksyms.c | 34 +++++++++++++++
 arch/h8300/kernel/module.c      | 70 ++++++++++++++++++++++++++++++
 arch/h8300/kernel/sim-console.c | 79 ++++++++++++++++++++++++++++++++++
 arch/h8300/kernel/syscalls.c    | 14 ++++++
 6 files changed, 352 insertions(+)
 create mode 100644 arch/h8300/kernel/asm-offsets.c
 create mode 100644 arch/h8300/kernel/dma.c
 create mode 100644 arch/h8300/kernel/h8300_ksyms.c
 create mode 100644 arch/h8300/kernel/module.c
 create mode 100644 arch/h8300/kernel/sim-console.c
 create mode 100644 arch/h8300/kernel/syscalls.c

diff --git a/arch/h8300/kernel/asm-offsets.c b/arch/h8300/kernel/asm-offsets.c
new file mode 100644
index 0000000..9fb9d49
--- /dev/null
+++ b/arch/h8300/kernel/asm-offsets.c
@@ -0,0 +1,60 @@
+/*
+ * This program is used to generate definitions needed by
+ * assembly language modules.
+ *
+ * We use the technique used in the OSF Mach kernel code:
+ * generate asm statements containing #defines,
+ * compile this file to assembler, and then extract the
+ * #defines from the assembly-language output.
+ */
+
+#include <linux/stddef.h>
+#include <linux/sched.h>
+#include <linux/kernel_stat.h>
+#include <linux/ptrace.h>
+#include <linux/hardirq.h>
+#include <linux/kbuild.h>
+#include <asm/irq.h>
+#include <asm/ptrace.h>
+
+int main(void)
+{
+	/* offsets into the task struct */
+	DEFINE(TASK_STATE, offsetof(struct task_struct, state));
+	DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
+	DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
+	DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
+	DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
+	DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack));
+	DEFINE(TASK_MM, offsetof(struct task_struct, mm));
+	DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
+
+	/* offsets into the irq_cpustat_t struct */
+	DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
+
+	/* offsets into the thread struct */
+	DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
+	DEFINE(THREAD_USP, offsetof(struct thread_struct, usp));
+	DEFINE(THREAD_CCR, offsetof(struct thread_struct, ccr));
+
+	/* offsets into the pt_regs struct */
+	DEFINE(LER0,  offsetof(struct pt_regs, er0)      - sizeof(long));
+	DEFINE(LER1,  offsetof(struct pt_regs, er1)      - sizeof(long));
+	DEFINE(LER2,  offsetof(struct pt_regs, er2)      - sizeof(long));
+	DEFINE(LER3,  offsetof(struct pt_regs, er3)      - sizeof(long));
+	DEFINE(LER4,  offsetof(struct pt_regs, er4)      - sizeof(long));
+	DEFINE(LER5,  offsetof(struct pt_regs, er5)      - sizeof(long));
+	DEFINE(LER6,  offsetof(struct pt_regs, er6)      - sizeof(long));
+	DEFINE(LORIG, offsetof(struct pt_regs, orig_er0) - sizeof(long));
+	DEFINE(LSP,  offsetof(struct pt_regs, sp)        - sizeof(long));
+	DEFINE(LCCR,  offsetof(struct pt_regs, ccr)      - sizeof(long));
+	DEFINE(LVEC,  offsetof(struct pt_regs, vector)   - sizeof(long));
+#if defined(CONFIG_CPU_H8S)
+	DEFINE(LEXR,  offsetof(struct pt_regs, exr)      - sizeof(long));
+#endif
+	DEFINE(LRET,  offsetof(struct pt_regs, pc)       - sizeof(long));
+
+	DEFINE(PT_PTRACED, PT_PTRACED);
+
+	return 0;
+}
diff --git a/arch/h8300/kernel/dma.c b/arch/h8300/kernel/dma.c
new file mode 100644
index 0000000..061f3c3
--- /dev/null
+++ b/arch/h8300/kernel/dma.c
@@ -0,0 +1,95 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#undef DEBUG
+
+#include <linux/dma-mapping.h>
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/scatterlist.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/export.h>
+
+#include <asm/pgalloc.h>
+
+void *dma_alloc_coherent(struct device *dev, size_t size,
+			   dma_addr_t *dma_handle, gfp_t gfp)
+{
+	void *ret;
+	/* ignore region specifiers */
+	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
+
+	if (dev == NULL || (*dev->dma_mask < 0xffffffff))
+		gfp |= GFP_DMA;
+	ret = (void *)__get_free_pages(gfp, get_order(size));
+
+	if (ret != NULL) {
+		memset(ret, 0, size);
+		*dma_handle = virt_to_phys(ret);
+	}
+	return ret;
+}
+EXPORT_SYMBOL(dma_alloc_coherent);
+
+void dma_free_coherent(struct device *dev, size_t size,
+			 void *vaddr, dma_addr_t dma_handle)
+{
+	free_pages((unsigned long)vaddr, get_order(size));
+}
+EXPORT_SYMBOL(dma_free_coherent);
+
+void dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
+				size_t size, enum dma_data_direction dir)
+{
+}
+EXPORT_SYMBOL(dma_sync_single_for_device);
+
+void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
+			    int nents, enum dma_data_direction dir)
+{
+	int i;
+
+	for (i = 0; i < nents; sg++, i++)
+		dma_sync_single_for_device(dev, sg->dma_address,
+					   sg->length, dir);
+}
+EXPORT_SYMBOL(dma_sync_sg_for_device);
+
+dma_addr_t dma_map_single(struct device *dev, void *addr, size_t size,
+			  enum dma_data_direction dir)
+{
+	dma_addr_t handle = virt_to_bus(addr);
+
+	dma_sync_single_for_device(dev, handle, size, dir);
+	return handle;
+}
+EXPORT_SYMBOL(dma_map_single);
+
+dma_addr_t dma_map_page(struct device *dev, struct page *page,
+			unsigned long offset, size_t size,
+			enum dma_data_direction dir)
+{
+	dma_addr_t handle = page_to_phys(page) + offset;
+
+	dma_sync_single_for_device(dev, handle, size, dir);
+	return handle;
+}
+EXPORT_SYMBOL(dma_map_page);
+
+int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+	       enum dma_data_direction dir)
+{
+	int i;
+
+	for (i = 0; i < nents; sg++, i++) {
+		sg->dma_address = sg_phys(sg);
+		dma_sync_single_for_device(dev, sg->dma_address,
+					   sg->length, dir);
+	}
+	return nents;
+}
+EXPORT_SYMBOL(dma_map_sg);
diff --git a/arch/h8300/kernel/h8300_ksyms.c b/arch/h8300/kernel/h8300_ksyms.c
new file mode 100644
index 0000000..33bf96a
--- /dev/null
+++ b/arch/h8300/kernel/h8300_ksyms.c
@@ -0,0 +1,34 @@
+#include <linux/module.h>
+#include <linux/linkage.h>
+
+/*
+ * libgcc functions - functions that are used internally by the
+ * compiler...  (prototypes are not correct though, but that
+ * doesn't really matter since they're not versioned).
+ */
+asmlinkage long long __ashldi3(long long, int);
+asmlinkage long long __ashrdi3(long long, int);
+asmlinkage long long __lshrdi3(long long, int);
+asmlinkage long __divsi3(long, long);
+asmlinkage long __modsi3(long, long);
+asmlinkage unsigned long __umodsi3(unsigned long, unsigned long);
+asmlinkage long long __muldi3(long long, long long);
+asmlinkage long __mulsi3(long, long);
+asmlinkage long __udivsi3(long, long);
+asmlinkage void *memcpy(void *, const void *, size_t);
+asmlinkage void *memset(void *, int, size_t);
+asmlinkage long strncpy_from_user(void *to, void *from, size_t n);
+
+	/* gcc lib functions */
+EXPORT_SYMBOL(__ashldi3);
+EXPORT_SYMBOL(__ashrdi3);
+EXPORT_SYMBOL(__lshrdi3);
+EXPORT_SYMBOL(__divsi3);
+EXPORT_SYMBOL(__modsi3);
+EXPORT_SYMBOL(__umodsi3);
+EXPORT_SYMBOL(__muldi3);
+EXPORT_SYMBOL(__mulsi3);
+EXPORT_SYMBOL(__udivsi3);
+EXPORT_SYMBOL(memcpy);
+EXPORT_SYMBOL(memset);
+EXPORT_SYMBOL(strncpy_from_user);
diff --git a/arch/h8300/kernel/module.c b/arch/h8300/kernel/module.c
new file mode 100644
index 0000000..515f6c4
--- /dev/null
+++ b/arch/h8300/kernel/module.c
@@ -0,0 +1,70 @@
+#include <linux/moduleloader.h>
+#include <linux/elf.h>
+#include <linux/vmalloc.h>
+#include <linux/fs.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+
+int apply_relocate_add(Elf32_Shdr *sechdrs,
+		       const char *strtab,
+		       unsigned int symindex,
+		       unsigned int relsec,
+		       struct module *me)
+{
+	unsigned int i;
+	Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr;
+
+	pr_debug("Applying relocate section %u to %u\n", relsec,
+	       sechdrs[relsec].sh_info);
+	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rela); i++) {
+		/* This is where to make the change */
+		uint32_t *loc =
+			(uint32_t *)(sechdrs[sechdrs[relsec].sh_info].sh_addr
+					     + rela[i].r_offset);
+		/* This is the symbol it is referring to.  Note that all
+		   undefined symbols have been resolved.  */
+		Elf32_Sym *sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
+			+ ELF32_R_SYM(rela[i].r_info);
+		uint32_t v = sym->st_value + rela[i].r_addend;
+
+		switch (ELF32_R_TYPE(rela[i].r_info)) {
+		case R_H8_DIR24R8:
+			loc = (uint32_t *)((uint32_t)loc - 1);
+			*loc = (*loc & 0xff000000) | ((*loc & 0xffffff) + v);
+			break;
+		case R_H8_DIR24A8:
+			if (ELF32_R_SYM(rela[i].r_info))
+				*loc += v;
+			break;
+		case R_H8_DIR32:
+		case R_H8_DIR32A16:
+			*loc += v;
+			break;
+		case R_H8_PCREL16:
+			v -= (unsigned long)loc + 2;
+			if ((Elf32_Sword)v > 0x7fff ||
+			    (Elf32_Sword)v < -(Elf32_Sword)0x8000)
+				goto overflow;
+			else
+				*(unsigned short *)loc = v;
+			break;
+		case R_H8_PCREL8:
+			v -= (unsigned long)loc + 1;
+			if ((Elf32_Sword)v > 0x7f ||
+			    (Elf32_Sword)v < -(Elf32_Sword)0x80)
+				goto overflow;
+			else
+				*(unsigned char *)loc = v;
+			break;
+		default:
+			pr_err("module %s: Unknown relocation: %u\n",
+			       me->name, ELF32_R_TYPE(rela[i].r_info));
+			return -ENOEXEC;
+		}
+	}
+	return 0;
+ overflow:
+	pr_err("module %s: relocation offset overflow: %08x\n",
+	       me->name, rela[i].r_offset);
+	return -ENOEXEC;
+}
diff --git a/arch/h8300/kernel/sim-console.c b/arch/h8300/kernel/sim-console.c
new file mode 100644
index 0000000..a15edf0
--- /dev/null
+++ b/arch/h8300/kernel/sim-console.c
@@ -0,0 +1,79 @@
+/*
+ * arch/h8300/kernel/early_printk.c
+ *
+ *  Copyright (C) 2009 Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/console.h>
+#include <linux/tty.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+
+static void sim_write(struct console *co, const char *ptr,
+				 unsigned len)
+{
+	register const int fd __asm__("er0") = 1; /* stdout */
+	register const char *_ptr __asm__("er1") = ptr;
+	register const unsigned _len __asm__("er2") = len;
+
+	__asm__(".byte 0x5e,0x00,0x00,0xc7\n\t" /* jsr @0xc7 (sys_write) */
+		: : "g"(fd), "g"(_ptr), "g"(_len));
+}
+
+static struct console sim_console = {
+	.name		= "sim_console",
+	.write		= sim_write,
+	.setup		= NULL,
+	.flags		= CON_PRINTBUFFER,
+	.index		= -1,
+};
+
+static char sim_console_buf[32];
+
+static int sim_probe(struct platform_device *pdev)
+{
+	if (sim_console.data)
+		return -EEXIST;
+
+	if (!strstr(sim_console_buf, "keep"))
+		sim_console.flags |= CON_BOOT;
+
+	register_console(&sim_console);
+	return 0;
+}
+
+static int sim_remove(struct platform_device *pdev)
+{
+	return 0;
+}
+
+static struct platform_driver sim_driver = {
+	.probe		= sim_probe,
+	.remove		= sim_remove,
+	.driver		= {
+		.name	= "h8300-sim",
+		.owner	= THIS_MODULE,
+	},
+};
+
+early_platform_init_buffer("earlyprintk", &sim_driver,
+			   sim_console_buf, ARRAY_SIZE(sim_console_buf));
+
+static struct platform_device sim_console_device = {
+	.name		= "h8300-sim",
+	.id		= 0,
+};
+
+static struct platform_device *devices[] __initdata = {
+	&sim_console_device,
+};
+
+void __init sim_console_register(void)
+{
+	early_platform_add_devices(devices,
+				   ARRAY_SIZE(devices));
+}
diff --git a/arch/h8300/kernel/syscalls.c b/arch/h8300/kernel/syscalls.c
new file mode 100644
index 0000000..1f9123a
--- /dev/null
+++ b/arch/h8300/kernel/syscalls.c
@@ -0,0 +1,14 @@
+#include <linux/syscalls.h>
+#include <linux/signal.h>
+#include <linux/unistd.h>
+
+#undef __SYSCALL
+#define __SYSCALL(nr, call) [nr] = (call),
+
+#define sys_mmap2 sys_mmap_pgoff
+
+asmlinkage int sys_rt_sigreturn(void);
+
+void *_sys_call_table[__NR_syscalls] = {
+#include <asm/unistd.h>
+};
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 08/16] h8300: Memory management
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
                   ` (6 preceding siblings ...)
  2015-03-09  8:47 ` [PATCH v6 07/16] h8300: miscellaneous functions Yoshinori Sato
@ 2015-03-09  8:47 ` Yoshinori Sato
  2015-03-09  8:47 ` [PATCH v6 09/16] h8300: library functions Yoshinori Sato
                   ` (8 subsequent siblings)
  16 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:47 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 arch/h8300/mm/Makefile |   5 ++
 arch/h8300/mm/fault.c  |  57 +++++++++++++++++++++
 arch/h8300/mm/init.c   | 133 +++++++++++++++++++++++++++++++++++++++++++++++++
 arch/h8300/mm/kmap.c   |  61 +++++++++++++++++++++++
 arch/h8300/mm/memory.c |  53 ++++++++++++++++++++
 5 files changed, 309 insertions(+)
 create mode 100644 arch/h8300/mm/Makefile
 create mode 100644 arch/h8300/mm/fault.c
 create mode 100644 arch/h8300/mm/init.c
 create mode 100644 arch/h8300/mm/kmap.c
 create mode 100644 arch/h8300/mm/memory.c

diff --git a/arch/h8300/mm/Makefile b/arch/h8300/mm/Makefile
new file mode 100644
index 0000000..117d71f
--- /dev/null
+++ b/arch/h8300/mm/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the linux h8300-specific parts of the memory manager.
+#
+
+obj-y	 := init.o fault.o memory.o kmap.o
diff --git a/arch/h8300/mm/fault.c b/arch/h8300/mm/fault.c
new file mode 100644
index 0000000..5924ff5
--- /dev/null
+++ b/arch/h8300/mm/fault.c
@@ -0,0 +1,57 @@
+/*
+ *  linux/arch/h8300/mm/fault.c
+ *
+ *  Copyright (C) 1998  D. Jeff Dionne <jeff@lineo.ca>,
+ *  Copyright (C) 2000  Lineo, Inc.  (www.lineo.com)
+ *
+ *  Based on:
+ *
+ *  linux/arch/m68knommu/mm/fault.c
+ *  linux/arch/m68k/mm/fault.c
+ *
+ *  Copyright (C) 1995  Hamish Macdonald
+ */
+
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/kernel.h>
+#include <linux/ptrace.h>
+
+#include <asm/pgtable.h>
+
+void die(const char *str, struct pt_regs *fp, unsigned long err);
+
+/*
+ * This routine handles page faults.  It determines the problem, and
+ * then passes it off to one of the appropriate routines.
+ *
+ * error_code:
+ *	bit 0 == 0 means no page found, 1 means protection fault
+ *	bit 1 == 0 means read, 1 means write
+ *
+ * If this routine detects a bad access, it returns 1, otherwise it
+ * returns 0.
+ */
+asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address,
+			      unsigned long error_code)
+{
+#ifdef DEBUG
+	pr_debug("regs->sr=%#x, regs->pc=%#lx, address=%#lx, %ld\n",
+		 regs->sr, regs->pc, address, error_code);
+#endif
+
+/*
+ * Oops. The kernel tried to access some bad page. We'll have to
+ * terminate things with extreme prejudice.
+ */
+	if ((unsigned long) address < PAGE_SIZE)
+		pr_alert("Unable to handle kernel NULL pointer dereference");
+	else
+		pr_alert("Unable to handle kernel access");
+	printk(" at virtual address %08lx\n", address);
+	if (!user_mode(regs))
+		die("Oops", regs, error_code);
+	do_exit(SIGKILL);
+
+	return 1;
+}
diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
new file mode 100644
index 0000000..98028b1
--- /dev/null
+++ b/arch/h8300/mm/init.c
@@ -0,0 +1,133 @@
+/*
+ *  linux/arch/h8300/mm/init.c
+ *
+ *  Copyright (C) 1998  D. Jeff Dionne <jeff@lineo.ca>,
+ *                      Kenneth Albanowski <kjahds@kjahds.com>,
+ *  Copyright (C) 2000  Lineo, Inc.  (www.lineo.com)
+ *
+ *  Based on:
+ *
+ *  linux/arch/m68knommu/mm/init.c
+ *  linux/arch/m68k/mm/init.c
+ *
+ *  Copyright (C) 1995  Hamish Macdonald
+ *
+ *  JAN/1999 -- hacked to support ColdFire (gerg@snapgear.com)
+ *  DEC/2000 -- linux 2.4 support <davidm@snapgear.com>
+ */
+
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/init.h>
+#include <linux/highmem.h>
+#include <linux/pagemap.h>
+#include <linux/bootmem.h>
+#include <linux/gfp.h>
+
+#include <asm/setup.h>
+#include <asm/segment.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/sections.h>
+
+/*
+ * BAD_PAGE is the page that is used for page faults when linux
+ * is out-of-memory. Older versions of linux just did a
+ * do_exit(), but using this instead means there is less risk
+ * for a process dying in kernel mode, possibly leaving a inode
+ * unused etc..
+ *
+ * BAD_PAGETABLE is the accompanying page-table: it is initialized
+ * to point to BAD_PAGE entries.
+ *
+ * ZERO_PAGE is a special page that is used for zero-initialized
+ * data and COW.
+ */
+static unsigned long empty_bad_page_table;
+static unsigned long empty_bad_page;
+unsigned long empty_zero_page;
+
+/*
+ * paging_init() continues the virtual memory environment setup which
+ * was begun by the code in arch/head.S.
+ * The parameters are pointers to where to stick the starting and ending
+ * addresses of available kernel virtual memory.
+ */
+void __init paging_init(void)
+{
+	/*
+	 * Make sure start_mem is page aligned,  otherwise bootmem and
+	 * page_alloc get different views og the world.
+	 */
+	unsigned long start_mem = PAGE_ALIGN(memory_start);
+	unsigned long end_mem   = memory_end & PAGE_MASK;
+
+	pr_debug("start_mem is %#lx\nvirtual_end is %#lx\n",
+		 start_mem, end_mem);
+
+	/*
+	 * Initialize the bad page table and bad page to point
+	 * to a couple of allocated pages.
+	 */
+	empty_bad_page_table = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
+	empty_bad_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
+	empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
+	memset((void *)empty_zero_page, 0, PAGE_SIZE);
+
+	/*
+	 * Set up SFC/DFC registers (user data space).
+	 */
+	set_fs(USER_DS);
+
+	pr_debug("before free_area_init\n");
+
+	pr_debug("free_area_init -> start_mem is %#lx\nvirtual_end is %#lx\n",
+		 start_mem, end_mem);
+
+	{
+		unsigned long zones_size[MAX_NR_ZONES] = {0, };
+
+		zones_size[ZONE_NORMAL] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT;
+		free_area_init(zones_size);
+	}
+}
+
+void __init mem_init(void)
+{
+	unsigned long codesize = _etext - _stext;
+
+	pr_devel("Mem_init: start=%lx, end=%lx\n", memory_start, memory_end);
+
+	high_memory = (void *) (memory_end & PAGE_MASK);
+	max_mapnr = MAP_NR(high_memory);
+
+	/* this will put all low memory onto the freelists */
+	free_all_bootmem();
+
+	mem_init_print_info(NULL);
+	if (rom_length > 0 && rom_length > codesize)
+		pr_info("Memory available: %luK/%luK ROM\n",
+			(rom_length - codesize) >> 10, rom_length >> 10);
+}
+
+
+#ifdef CONFIG_BLK_DEV_INITRD
+void free_initrd_mem(unsigned long start, unsigned long end)
+{
+	free_reserved_area((void *)start, (void *)end, -1, "initrd");
+}
+#endif
+
+void
+free_initmem(void)
+{
+	free_initmem_default(-1);
+}
diff --git a/arch/h8300/mm/kmap.c b/arch/h8300/mm/kmap.c
new file mode 100644
index 0000000..4315aa3
--- /dev/null
+++ b/arch/h8300/mm/kmap.c
@@ -0,0 +1,61 @@
+/*
+ *  linux/arch/h8300/mm/kmap.c
+ *
+ *  Based on
+ *  linux/arch/m68knommu/mm/kmap.c
+ *
+ *  Copyright (C) 2000 Lineo, <davidm@snapgear.com>
+ *  Copyright (C) 2000-2002 David McCullough <davidm@snapgear.com>
+ */
+
+#include <linux/mm.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/vmalloc.h>
+#include <linux/module.h>
+
+#include <asm/setup.h>
+#include <asm/segment.h>
+#include <asm/page.h>
+#include <asm/pgalloc.h>
+#include <asm/io.h>
+
+#undef DEBUG
+
+#define VIRT_OFFSET (0x01000000)
+
+/*
+ * Map some physical address range into the kernel address space.
+ */
+void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
+{
+	return (void *)(physaddr + VIRT_OFFSET);
+}
+EXPORT_SYMBOL(__ioremap);
+
+/*
+ * Unmap a ioremap()ed region again.
+ */
+void iounmap(void *addr)
+{
+}
+EXPORT_SYMBOL(iounmap);
+
+/*
+ * __iounmap unmaps nearly everything, so be careful
+ * it doesn't free currently pointer/page tables anymore but it
+ * wans't used anyway and might be added later.
+ */
+void __iounmap(void *addr, unsigned long size)
+{
+}
+
+/*
+ * Set new cache mode for some kernel address space.
+ * The caller must push data for that range itself, if such data may already
+ * be in the cache.
+ */
+void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
+{
+}
diff --git a/arch/h8300/mm/memory.c b/arch/h8300/mm/memory.c
new file mode 100644
index 0000000..4974aa4
--- /dev/null
+++ b/arch/h8300/mm/memory.c
@@ -0,0 +1,53 @@
+/*
+ *  linux/arch/h8300/mm/memory.c
+ *
+ *  Copyright (C) 2002  Yoshinori Sato <ysato@users.sourceforge.jp>,
+ *
+ *  Based on:
+ *
+ *  linux/arch/m68knommu/mm/memory.c
+ *
+ *  Copyright (C) 1998  Kenneth Albanowski <kjahds@kjahds.com>,
+ *  Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
+ *
+ *  Based on:
+ *
+ *  linux/arch/m68k/mm/memory.c
+ *
+ *  Copyright (C) 1995  Hamish Macdonald
+ */
+
+#include <linux/mm.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/types.h>
+
+#include <asm/setup.h>
+#include <asm/segment.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/traps.h>
+#include <asm/io.h>
+
+void cache_clear(unsigned long paddr, int len)
+{
+}
+
+
+void cache_push(unsigned long paddr, int len)
+{
+}
+
+void cache_push_v(unsigned long vaddr, int len)
+{
+}
+
+/*
+ * Map some physical address range into the kernel address space.
+ */
+
+unsigned long kernel_map(unsigned long paddr, unsigned long size,
+			 int nocacheflag, unsigned long *memavailp)
+{
+	return paddr;
+}
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 09/16] h8300: library functions
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
                   ` (7 preceding siblings ...)
  2015-03-09  8:47 ` [PATCH v6 08/16] h8300: Memory management Yoshinori Sato
@ 2015-03-09  8:47 ` Yoshinori Sato
  2015-03-09  8:47 ` [PATCH v6 10/16] h8300: Build scripts Yoshinori Sato
                   ` (7 subsequent siblings)
  16 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:47 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 arch/h8300/lib/Makefile    |   7 ++
 arch/h8300/lib/abs.S       |  20 ++++++
 arch/h8300/lib/ashldi3.c   |  24 +++++++
 arch/h8300/lib/ashrdi3.c   |  24 +++++++
 arch/h8300/lib/checksum.c  | 167 +++++++++++++++++++++++++++++++++++++++++++++
 arch/h8300/lib/libgcc.h    |  77 +++++++++++++++++++++
 arch/h8300/lib/lshrdi3.c   |  23 +++++++
 arch/h8300/lib/memcpy.S    |  85 +++++++++++++++++++++++
 arch/h8300/lib/memset.S    |  69 +++++++++++++++++++
 arch/h8300/lib/moddivsi3.S |  72 +++++++++++++++++++
 arch/h8300/lib/modsi3.S    |  72 +++++++++++++++++++
 arch/h8300/lib/muldi3.c    |  44 ++++++++++++
 arch/h8300/lib/mulsi3.S    |  38 +++++++++++
 arch/h8300/lib/strncpy.S   |  34 +++++++++
 arch/h8300/lib/ucmpdi2.c   |  17 +++++
 arch/h8300/lib/udivsi3.S   |  76 +++++++++++++++++++++
 16 files changed, 849 insertions(+)
 create mode 100644 arch/h8300/lib/Makefile
 create mode 100644 arch/h8300/lib/abs.S
 create mode 100644 arch/h8300/lib/ashldi3.c
 create mode 100644 arch/h8300/lib/ashrdi3.c
 create mode 100644 arch/h8300/lib/checksum.c
 create mode 100644 arch/h8300/lib/libgcc.h
 create mode 100644 arch/h8300/lib/lshrdi3.c
 create mode 100644 arch/h8300/lib/memcpy.S
 create mode 100644 arch/h8300/lib/memset.S
 create mode 100644 arch/h8300/lib/moddivsi3.S
 create mode 100644 arch/h8300/lib/modsi3.S
 create mode 100644 arch/h8300/lib/muldi3.c
 create mode 100644 arch/h8300/lib/mulsi3.S
 create mode 100644 arch/h8300/lib/strncpy.S
 create mode 100644 arch/h8300/lib/ucmpdi2.c
 create mode 100644 arch/h8300/lib/udivsi3.S

diff --git a/arch/h8300/lib/Makefile b/arch/h8300/lib/Makefile
new file mode 100644
index 0000000..8311a9f
--- /dev/null
+++ b/arch/h8300/lib/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for H8/300-specific library files..
+#
+
+lib-y  = checksum.o memcpy.o memset.o abs.o strncpy.o \
+	 mulsi3.o udivsi3.o muldi3.o moddivsi3.o \
+	 ashldi3.o lshrdi3.o ashrdi3.o ucmpdi2.o
diff --git a/arch/h8300/lib/abs.S b/arch/h8300/lib/abs.S
new file mode 100644
index 0000000..efda749
--- /dev/null
+++ b/arch/h8300/lib/abs.S
@@ -0,0 +1,20 @@
+;;; abs.S
+
+#include <asm/linkage.h>
+
+#if defined(CONFIG_CPU_H8300H)
+	.h8300h
+#endif
+#if defined(CONFIG_CPU_H8S)
+	.h8300s
+#endif
+	.text
+.global _abs
+
+;;; int abs(int n)
+_abs:
+	mov.l	er0,er0
+	bpl	1f
+	neg.l	er0
+1:
+	rts
diff --git a/arch/h8300/lib/ashldi3.c b/arch/h8300/lib/ashldi3.c
new file mode 100644
index 0000000..c6aa8ea
--- /dev/null
+++ b/arch/h8300/lib/ashldi3.c
@@ -0,0 +1,24 @@
+#include "libgcc.h"
+
+DWtype
+__ashldi3(DWtype u, word_type b)
+{
+	const DWunion uu = {.ll = u};
+	const word_type bm = (sizeof (Wtype) * BITS_PER_UNIT) - b;
+	DWunion w;
+
+	if (b == 0)
+		return u;
+
+	if (bm <= 0) {
+		w.s.low = 0;
+		w.s.high = (UWtype) uu.s.low << -bm;
+	} else {
+		const UWtype carries = (UWtype) uu.s.low >> bm;
+
+		w.s.low = (UWtype) uu.s.low << b;
+		w.s.high = ((UWtype) uu.s.high << b) | carries;
+	}
+
+	return w.ll;
+}
diff --git a/arch/h8300/lib/ashrdi3.c b/arch/h8300/lib/ashrdi3.c
new file mode 100644
index 0000000..070adf9
--- /dev/null
+++ b/arch/h8300/lib/ashrdi3.c
@@ -0,0 +1,24 @@
+#include "libgcc.h"
+
+DWtype __ashrdi3(DWtype u, word_type b)
+{
+	const DWunion uu = {.ll = u};
+	const word_type bm = (sizeof (Wtype) * BITS_PER_UNIT) - b;
+	DWunion w;
+
+	if (b == 0)
+		return u;
+
+	if (bm <= 0) {
+		/* w.s.high = 1..1 or 0..0 */
+		w.s.high = uu.s.high >> (sizeof (Wtype) * BITS_PER_UNIT - 1);
+		w.s.low = uu.s.high >> -bm;
+	} else {
+		const UWtype carries = (UWtype) uu.s.high << bm;
+
+		w.s.high = uu.s.high >> b;
+		w.s.low = ((UWtype) uu.s.low >> b) | carries;
+	}
+
+	return w.ll;
+}
diff --git a/arch/h8300/lib/checksum.c b/arch/h8300/lib/checksum.c
new file mode 100644
index 0000000..ae28469
--- /dev/null
+++ b/arch/h8300/lib/checksum.c
@@ -0,0 +1,167 @@
+/*
+ * INET		An implementation of the TCP/IP protocol suite for the LINUX
+ *		operating system.  INET is implemented using the  BSD Socket
+ *		interface as the means of communication with the user level.
+ *
+ *		IP/TCP/UDP checksumming routines
+ *
+ * Authors:	Jorge Cwik, <jorge@laser.satlink.net>
+ *		Arnt Gulbrandsen, <agulbra@nvg.unit.no>
+ *		Tom May, <ftom@netcom.com>
+ *		Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de>
+ *		Lots of code moved from tcp.c and ip.c; see those files
+ *		for more names.
+ *
+ * 03/02/96	Jes Sorensen, Andreas Schwab, Roman Hodek:
+ *		Fixed some nasty bugs, causing some horrible crashes.
+ *		A: At some points, the sum (%0) was used as
+ *		length-counter instead of the length counter
+ *		(%1). Thanks to Roman Hodek for pointing this out.
+ *		B: GCC seems to mess up if one uses too many
+ *		data-registers to hold input values and one tries to
+ *		specify d0 and d1 as scratch registers. Letting gcc choose these
+ *      registers itself solves the problem.
+ *
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		as published by the Free Software Foundation; either version
+ *		2 of the License, or (at your option) any later version.
+ */
+
+/* Revised by Kenneth Albanowski for m68knommu. Basic problem: unaligned access kills, so most
+   of the assembly has to go. */
+
+#include <net/checksum.h>
+#include <linux/module.h>
+
+static inline unsigned short from32to16(unsigned long x)
+{
+	/* add up 16-bit and 16-bit for 16+c bit */
+	x = (x & 0xffff) + (x >> 16);
+	/* add up carry.. */
+	x = (x & 0xffff) + (x >> 16);
+	return x;
+}
+
+static unsigned long do_csum(const unsigned char *buff, int len)
+{
+	int odd, count;
+	unsigned long result = 0;
+
+	if (len <= 0)
+		goto out;
+	odd = 1 & (unsigned long) buff;
+	if (odd) {
+		result = *buff;
+		len--;
+		buff++;
+	}
+	count = len >> 1;		/* nr of 16-bit words.. */
+	if (count) {
+		if (2 & (unsigned long) buff) {
+			result += *(unsigned short *) buff;
+			count--;
+			len -= 2;
+			buff += 2;
+		}
+		count >>= 1;		/* nr of 32-bit words.. */
+		if (count) {
+			unsigned long carry = 0;
+
+			do {
+				unsigned long w = *(unsigned long *) buff;
+
+				count--;
+				buff += 4;
+				result += carry;
+				result += w;
+				carry = (w > result);
+			} while (count);
+			result += carry;
+			result = (result & 0xffff) + (result >> 16);
+		}
+		if (len & 2) {
+			result += *(unsigned short *) buff;
+			buff += 2;
+		}
+	}
+	if (len & 1)
+		result += (*buff << 8);
+	result = from32to16(result);
+	if (odd)
+		result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
+out:
+	return result;
+}
+
+/*
+ *	This is a version of ip_compute_csum() optimized for IP headers,
+ *	which always checksum on 4 octet boundaries.
+ */
+__sum16 ip_fast_csum(const void *iph, unsigned int ihl)
+{
+	return (__force __sum16)~do_csum(iph, ihl*4);
+}
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+/*
+ * Egads...  That thing apparently assumes that *all* checksums it ever sees will
+ * be folded.  Very likely a bug.
+ */
+__wsum csum_partial(const void *buff, int len, __wsum sum)
+{
+	unsigned int result = do_csum(buff, len);
+
+	/* add in old sum, and carry.. */
+	result += (__force u32)sum;
+	/* 16+c bits -> 16 bits */
+	result = (result & 0xffff) + (result >> 16);
+	return (__force __wsum)result;
+}
+
+EXPORT_SYMBOL(csum_partial);
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+__sum16 ip_compute_csum(const void *buff, int len)
+{
+	return (__force __sum16)~do_csum(buff, len);
+}
+
+/*
+ * copy from fs while checksumming, otherwise like csum_partial
+ */
+
+__wsum
+csum_partial_copy_from_user(const void __user *src, void *dst, int len,
+			    __wsum sum, int *csum_err)
+{
+	if (csum_err)
+		*csum_err = 0;
+	memcpy(dst, (__force const void *)src, len);
+	return csum_partial(dst, len, sum);
+}
+
+/*
+ * copy from ds while checksumming, otherwise like csum_partial
+ */
+
+__wsum
+csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
+{
+	memcpy(dst, src, len);
+	return csum_partial(dst, len, sum);
+}
diff --git a/arch/h8300/lib/libgcc.h b/arch/h8300/lib/libgcc.h
new file mode 100644
index 0000000..468a8f7
--- /dev/null
+++ b/arch/h8300/lib/libgcc.h
@@ -0,0 +1,77 @@
+#ifndef __H8300_LIBGCC_H__
+#define __H8300_LIBGCC_H__
+
+#ifdef __ASSEMBLY__
+#define A0 r0
+#define A0L r0l
+#define A0H r0h
+
+#define A1 r1
+#define A1L r1l
+#define A1H r1h
+
+#define A2 r2
+#define A2L r2l
+#define A2H r2h
+
+#define A3 r3
+#define A3L r3l
+#define A3H r3h
+
+#define S0 r4
+#define S0L r4l
+#define S0H r4h
+
+#define S1 r5
+#define S1L r5l
+#define S1H r5h
+
+#define S2 r6
+#define S2L r6l
+#define S2H r6h
+
+#define PUSHP	push.l
+#define POPP	pop.l
+
+#define A0P	er0
+#define A1P	er1
+#define A2P	er2
+#define A3P	er3
+#define S0P	er4
+#define S1P	er5
+#define S2P	er6
+
+#define A0E	e0
+#define A1E	e1
+#define A2E	e2
+#define A3E	e3
+#else
+#define Wtype   SItype
+#define UWtype  USItype
+#define HWtype  SItype
+#define UHWtype USItype
+#define DWtype  DItype
+#define UDWtype UDItype
+#define UWtype  USItype
+#define Wtype   SItype
+#define UWtype  USItype
+#define W_TYPE_SIZE (4 * BITS_PER_UNIT)
+#define BITS_PER_UNIT (8)
+
+typedef          int SItype     __attribute__ ((mode (SI)));
+typedef unsigned int USItype    __attribute__ ((mode (SI)));
+typedef		 int DItype	__attribute__ ((mode (DI)));
+typedef unsigned int UDItype	__attribute__ ((mode (DI)));
+struct DWstruct {
+	Wtype high, low;
+};
+typedef union {
+	struct DWstruct s;
+	DWtype ll;
+} DWunion;
+
+typedef int word_type __attribute__ ((mode (__word__)));
+
+#endif
+
+#endif
diff --git a/arch/h8300/lib/lshrdi3.c b/arch/h8300/lib/lshrdi3.c
new file mode 100644
index 0000000..a86bbe3
--- /dev/null
+++ b/arch/h8300/lib/lshrdi3.c
@@ -0,0 +1,23 @@
+#include "libgcc.h"
+
+DWtype __lshrdi3(DWtype u, word_type b)
+{
+	const DWunion uu = {.ll = u};
+	const word_type bm = (sizeof (Wtype) * BITS_PER_UNIT) - b;
+	DWunion w;
+
+	if (b == 0)
+		return u;
+
+	if (bm <= 0) {
+		w.s.high = 0;
+		w.s.low = (UWtype) uu.s.high >> -bm;
+	} else {
+		const UWtype carries = (UWtype) uu.s.high << bm;
+
+		w.s.high = (UWtype) uu.s.high >> b;
+		w.s.low = ((UWtype) uu.s.low >> b) | carries;
+	}
+
+	return w.ll;
+}
diff --git a/arch/h8300/lib/memcpy.S b/arch/h8300/lib/memcpy.S
new file mode 100644
index 0000000..0c9a51f
--- /dev/null
+++ b/arch/h8300/lib/memcpy.S
@@ -0,0 +1,85 @@
+;;; memcpy.S
+
+#include <asm/linkage.h>
+
+#if defined(CONFIG_CPU_H8300H)
+	.h8300h
+#endif
+#if defined(CONFIG_CPU_H8S)
+	.h8300s
+#endif
+	.text
+.global memcpy
+
+;;; void *memcpy(void *to, void *from, size_t n)
+memcpy:
+	mov.l	er2,er2
+	bne	1f
+	rts
+1:
+	;; address check
+	bld	#0,r0l
+	bxor	#0,r1l
+	bcs	4f
+	mov.l	er4,@-sp
+	mov.l	er0,@-sp
+	btst	#0,r0l
+	beq	1f
+	;; (aligned even) odd address
+	mov.b	@er1,r3l
+	mov.b	r3l,@er0
+	adds	#1,er1
+	adds	#1,er0
+	dec.l	#1,er2
+	beq	3f
+1:
+	;; n < sizeof(unsigned long) check
+	sub.l	er4,er4
+	adds	#4,er4		; loop count check value
+	cmp.l	er4,er2
+	blo	2f
+	;; unsigned long copy
+1:
+	mov.l	@er1,er3
+	mov.l	er3,@er0
+	adds	#4,er0
+	adds	#4,er1
+	subs	#4,er2
+	cmp.l	er4,er2
+	bcc	1b
+	;; rest
+2:
+	mov.l	er2,er2
+	beq	3f
+1:
+	mov.b	@er1,r3l
+	mov.b	r3l,@er0
+	adds	#1,er1
+	adds	#1,er0
+	dec.l	#1,er2
+	bne	1b
+3:
+	mov.l	@sp+,er0
+	mov.l	@sp+,er4
+	rts
+
+	;; odd <- even / even <- odd
+4:
+	mov.l	er4,er3
+	mov.l	er2,er4
+	mov.l	er5,er2
+	mov.l	er1,er5
+	mov.l	er6,er1
+	mov.l	er0,er6
+1:
+	eepmov.w
+	mov.w	r4,r4
+	bne	1b
+	dec.w	#1,e4
+	bpl	1b
+	mov.l	er1,er6
+	mov.l	er2,er5
+	mov.l	er3,er4
+	rts
+
+	.end
diff --git a/arch/h8300/lib/memset.S b/arch/h8300/lib/memset.S
new file mode 100644
index 0000000..18d4e70
--- /dev/null
+++ b/arch/h8300/lib/memset.S
@@ -0,0 +1,69 @@
+/* memset.S */
+
+#include <asm/linkage.h>
+
+#if defined(CONFIG_CPU_H8300H)
+	.h8300h
+#endif
+#if defined(CONFIG_CPU_H8S)
+	.h8300s
+#endif
+	.text
+
+.global	memset
+.global	clear_user
+
+;;void *memset(*ptr, int c, size_t count)
+;; ptr = er0
+;; c   = er1(r1l)
+;; count = er2
+memset:
+	btst	#0,r0l
+	beq	2f
+
+	;; odd address
+1:
+	mov.b	r1l,@er0
+	adds	#1,er0
+	dec.l	#1,er2
+	beq	6f
+
+	;; even address
+2:
+	mov.l	er2,er3
+	cmp.l	#4,er2
+	blo	4f
+	;; count>=4 -> count/4
+#if defined(CONFIG_CPU_H8300H)
+	shlr.l	er2
+	shlr.l	er2
+#endif
+#if defined(CONFIG_CPU_H8S)
+	shlr.l	#2,er2
+#endif
+	;; byte -> long
+	mov.b	r1l,r1h
+	mov.w	r1,e1
+3:
+	mov.l	er1,@er0
+	adds	#4,er0
+	dec.l	#1,er2
+	bne	3b
+4:
+	;; count % 4
+	and.b	#3,r3l
+	beq	6f
+5:
+	mov.b	r1l,@er0
+	adds	#1,er0
+	dec.b	r3l
+	bne	5b
+6:
+	rts
+
+clear_user:
+	mov.l	er1, er2
+	sub.l	er1, er1
+	bra	memset
+
+	.end
diff --git a/arch/h8300/lib/moddivsi3.S b/arch/h8300/lib/moddivsi3.S
new file mode 100644
index 0000000..c803129
--- /dev/null
+++ b/arch/h8300/lib/moddivsi3.S
@@ -0,0 +1,72 @@
+#include "libgcc.h"
+
+; numerator in A0/A1
+; denominator in A2/A3
+	.global	__modsi3
+__modsi3:
+	PUSHP	S2P
+	bsr	modnorm
+	bsr	__divsi3
+	mov.l	er3,er0
+	bra	exitdiv
+
+	.global	__umodsi3
+__umodsi3:
+	bsr	__udivsi3:16
+	mov.l	er3,er0
+	rts
+
+	.global	__divsi3
+__divsi3:
+	PUSHP	S2P
+	bsr	divnorm
+	bsr	__udivsi3:16
+
+	; examine what the sign should be
+exitdiv:
+	btst	#3,S2L
+	beq	reti
+
+	; should be -ve
+	neg.l	A0P
+
+reti:
+	POPP	S2P
+	rts
+
+divnorm:
+	mov.l	A0P,A0P		; is the numerator -ve
+	stc	ccr,S2L		; keep the sign in bit 3 of S2L
+	bge	postive
+
+	neg.l	A0P		; negate arg
+
+postive:
+	mov.l	A1P,A1P		; is the denominator -ve
+	bge	postive2
+
+	neg.l	A1P		; negate arg
+	xor.b	#0x08,S2L	; toggle the result sign
+
+postive2:
+	rts
+
+;; Basically the same, except that the sign of the divisor determines
+;; the sign.
+modnorm:
+	mov.l	A0P,A0P		; is the numerator -ve
+	stc	ccr,S2L		; keep the sign in bit 3 of S2L
+	bge	mpostive
+
+	neg.l	A0P		; negate arg
+
+mpostive:
+	mov.l	A1P,A1P		; is the denominator -ve
+	bge	mpostive2
+
+	neg.l	A1P		; negate arg
+
+mpostive2:
+	rts
+
+	.end
diff --git a/arch/h8300/lib/modsi3.S b/arch/h8300/lib/modsi3.S
new file mode 100644
index 0000000..68b1dfc
--- /dev/null
+++ b/arch/h8300/lib/modsi3.S
@@ -0,0 +1,72 @@
+#include "libgcc.h"
+
+; numerator in A0/A1
+; denominator in A2/A3
+	.global	__modsi3
+__modsi3:
+	PUSHP	S2P
+	bsr	modnorm
+	bsr	__divsi3
+	mov.l	er3,er0
+	bra	exitdiv
+
+	.global	__umodsi3
+__umodsi3:
+	bsr	__udivsi3
+	mov.l	er3,er0
+	rts
+
+	.global	__divsi3
+__divsi3:
+	PUSHP	S2P
+	jsr	divnorm
+	bsr	__udivsi3
+
+	; examine what the sign should be
+exitdiv:
+	btst	#3,S2L
+	beq	reti
+
+	; should be -ve
+	neg.l	A0P
+
+reti:
+	POPP	S2P
+	rts
+
+divnorm:
+	mov.l	A0P,A0P		; is the numerator -ve
+	stc	ccr,S2L		; keep the sign in bit 3 of S2L
+	bge	postive
+
+	neg.l	A0P		; negate arg
+
+postive:
+	mov.l	A1P,A1P		; is the denominator -ve
+	bge	postive2
+
+	neg.l	A1P		; negate arg
+	xor.b	#0x08,S2L	; toggle the result sign
+
+postive2:
+	rts
+
+;; Basically the same, except that the sign of the divisor determines
+;; the sign.
+modnorm:
+	mov.l	A0P,A0P		; is the numerator -ve
+	stc	ccr,S2L		; keep the sign in bit 3 of S2L
+	bge	mpostive
+
+	neg.l	A0P		; negate arg
+
+mpostive:
+	mov.l	A1P,A1P		; is the denominator -ve
+	bge	mpostive2
+
+	neg.l	A1P		; negate arg
+
+mpostive2:
+	rts
+
+	.end
diff --git a/arch/h8300/lib/muldi3.c b/arch/h8300/lib/muldi3.c
new file mode 100644
index 0000000..7905122
--- /dev/null
+++ b/arch/h8300/lib/muldi3.c
@@ -0,0 +1,44 @@
+#include "libgcc.h"
+
+#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
+#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
+#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))
+
+#define umul_ppmm(w1, w0, u, v) \
+	do {			   \
+		UWtype __x0, __x1, __x2, __x3;	\
+		UHWtype __ul, __vl, __uh, __vh; \
+		__ul = __ll_lowpart(u);	\
+		__uh = __ll_highpart(u);	\
+		__vl = __ll_lowpart(v);	\
+		__vh = __ll_highpart(v);	\
+		__x0 = (UWtype) __ul * __vl;	\
+		__x1 = (UWtype) __ul * __vh;	\
+		__x2 = (UWtype) __uh * __vl;	\
+		__x3 = (UWtype) __uh * __vh;	\
+		__x1 += __ll_highpart(__x0);	\
+		__x1 += __x2;			\
+		if (__x1 < __x2)		\
+			__x3 += __ll_B;		\
+		(w1) = __x3 + __ll_highpart(__x1);	       \
+		(w0) = __ll_lowpart(__x1) * __ll_B + __ll_lowpart(__x0); \
+	} while (0)
+
+#define __umulsidi3(u, v) (			\
+		{				\
+			DWunion __w;		\
+			umul_ppmm(__w.s.high, __w.s.low, u, v);	\
+			__w.ll; }					\
+		)
+
+DWtype __muldi3(DWtype u, DWtype v)
+{
+	const DWunion uu = {.ll = u};
+	const DWunion vv = {.ll = v};
+	DWunion w = {.ll = __umulsidi3(uu.s.low, vv.s.low)};
+
+	w.s.high += ((UWtype) uu.s.low * (UWtype) vv.s.high
+		     + (UWtype) uu.s.high * (UWtype) vv.s.low);
+
+	return w.ll;
+}
diff --git a/arch/h8300/lib/mulsi3.S b/arch/h8300/lib/mulsi3.S
new file mode 100644
index 0000000..451f0e0
--- /dev/null
+++ b/arch/h8300/lib/mulsi3.S
@@ -0,0 +1,38 @@
+;
+; mulsi3 for H8/300H - based on Renesas SH implementation
+;
+; by Toshiyasu Morita
+;
+; Old code:
+;
+; 16b * 16b = 372 states (worst case)
+; 32b * 32b = 724 states (worst case)
+;
+; New code:
+;
+; 16b * 16b =  48 states
+; 16b * 32b =  72 states
+; 32b * 32b =  92 states
+;
+
+	.global __mulsi3
+__mulsi3:
+	mov.w	r1,r2   ; ( 2 states) b * d
+	mulxu	r0,er2  ; (22 states)
+
+	mov.w	e0,r3   ; ( 2 states) a * d
+	beq	L_skip1 ; ( 4 states)
+	mulxu	r1,er3  ; (22 states)
+	add.w	r3,e2   ; ( 2 states)
+
+L_skip1:
+	mov.w	e1,r3   ; ( 2 states) c * b
+	beq	L_skip2 ; ( 4 states)
+	mulxu	r0,er3  ; (22 states)
+	add.w	r3,e2   ; ( 2 states)
+
+L_skip2:
+	mov.l	er2,er0	; ( 2 states)
+	rts		; (10 states)
+
+	.end
diff --git a/arch/h8300/lib/strncpy.S b/arch/h8300/lib/strncpy.S
new file mode 100644
index 0000000..d00396a
--- /dev/null
+++ b/arch/h8300/lib/strncpy.S
@@ -0,0 +1,34 @@
+;;; strncpy.S
+
+#include <asm/linkage.h>
+
+	.text
+.global strncpy_from_user
+
+;;; long strncpy_from_user(void *to, void *from, size_t n)
+strncpy_from_user:
+	mov.l	er2,er2
+	bne	1f
+	sub.l	er0,er0
+	rts
+1:
+	mov.l	er4,@-sp
+	sub.l	er3,er3
+2:
+	mov.b	@er1+,r4l
+	mov.b	r4l,@er0
+	adds	#1,er0
+	beq	3f
+	inc.l	#1,er3
+	dec.l	#1,er2
+	bne	2b
+3:
+	dec.l	#1,er2
+4:
+	mov.b	r4l,@er0
+	adds	#1,er0
+	dec.l	#1,er2
+	bne	4b
+	mov.l	er3,er0
+	mov.l	@sp+,er4
+	rts
diff --git a/arch/h8300/lib/ucmpdi2.c b/arch/h8300/lib/ucmpdi2.c
new file mode 100644
index 0000000..772399d
--- /dev/null
+++ b/arch/h8300/lib/ucmpdi2.c
@@ -0,0 +1,17 @@
+#include "libgcc.h"
+
+word_type __ucmpdi2(DWtype a, DWtype b)
+{
+	const DWunion au = {.ll = a};
+	const DWunion bu = {.ll = b};
+
+	if ((UWtype) au.s.high < (UWtype) bu.s.high)
+		return 0;
+	else if ((UWtype) au.s.high > (UWtype) bu.s.high)
+		return 2;
+	if ((UWtype) au.s.low < (UWtype) bu.s.low)
+		return 0;
+	else if ((UWtype) au.s.low > (UWtype) bu.s.low)
+		return 2;
+	return 1;
+}
diff --git a/arch/h8300/lib/udivsi3.S b/arch/h8300/lib/udivsi3.S
new file mode 100644
index 0000000..bbe6561
--- /dev/null
+++ b/arch/h8300/lib/udivsi3.S
@@ -0,0 +1,76 @@
+#include "libgcc.h"
+
+	;; This function also computes the remainder and stores it in er3.
+	.global	__udivsi3
+__udivsi3:
+	mov.w	A1E,A1E		; denominator top word 0?
+	bne	DenHighNonZero
+
+	; do it the easy way, see page 107 in manual
+	mov.w	A0E,A2
+	extu.l	A2P
+	divxu.w	A1,A2P
+	mov.w	A2E,A0E
+	divxu.w	A1,A0P
+	mov.w	A0E,A3
+	mov.w	A2,A0E
+	extu.l	A3P
+	rts
+
+	; er0 = er0 / er1
+	; er3 = er0 % er1
+	; trashes er1 er2
+	; expects er1 >= 2^16
+DenHighNonZero:
+	mov.l	er0,er3
+	mov.l	er1,er2
+#ifdef CONFIG_CPU_H8300H
+divmod_L21:
+	shlr.l	er0
+	shlr.l	er2		; make divisor < 2^16
+	mov.w	e2,e2
+	bne	divmod_L21
+#else
+	shlr.l	#2,er2		; make divisor < 2^16
+	mov.w	e2,e2
+	beq	divmod_L22A
+divmod_L21:
+	shlr.l	#2,er0
+divmod_L22:
+	shlr.l	#2,er2		; make divisor < 2^16
+	mov.w	e2,e2
+	bne	divmod_L21
+divmod_L22A:
+	rotxl.w	r2
+	bcs	divmod_L23
+	shlr.l	er0
+	bra	divmod_L24
+divmod_L23:
+	rotxr.w	r2
+	shlr.l	#2,er0
+divmod_L24:
+#endif
+	;; At this point,
+	;;  er0 contains shifted dividend
+	;;  er1 contains divisor
+	;;  er2 contains shifted divisor
+	;;  er3 contains dividend, later remainder
+	divxu.w	r2,er0		; r0 now contains the approximate quotient (AQ)
+	extu.l	er0
+	beq	divmod_L25
+	subs	#1,er0		; er0 = AQ - 1
+	mov.w	e1,r2
+	mulxu.w	r0,er2		; er2 = upper (AQ - 1) * divisor
+	sub.w	r2,e3		; dividend - 65536 * er2
+	mov.w	r1,r2
+	mulxu.w	r0,er2		; compute er3 = remainder (tentative)
+	sub.l	er2,er3		; er3 = dividend - (AQ - 1) * divisor
+divmod_L25:
+	cmp.l	er1,er3		; is divisor < remainder?
+	blo	divmod_L26
+	adds	#1,er0
+	sub.l	er1,er3		; correct the remainder
+divmod_L26:
+	rts
+
+	.end
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 10/16] h8300: Build scripts
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
                   ` (8 preceding siblings ...)
  2015-03-09  8:47 ` [PATCH v6 09/16] h8300: library functions Yoshinori Sato
@ 2015-03-09  8:47 ` Yoshinori Sato
  2015-03-09  8:47 ` [PATCH v6 11/16] h8300: clock driver Yoshinori Sato
                   ` (6 subsequent siblings)
  16 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:47 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 arch/h8300/Kconfig              |  73 ++++++++++++++++++++++++++
 arch/h8300/Kconfig.cpu          | 111 ++++++++++++++++++++++++++++++++++++++++
 arch/h8300/Makefile             |  45 ++++++++++++++++
 arch/h8300/kernel/Makefile      |  16 ++++++
 arch/h8300/kernel/vmlinux.lds.S |  67 ++++++++++++++++++++++++
 5 files changed, 312 insertions(+)
 create mode 100644 arch/h8300/Kconfig
 create mode 100644 arch/h8300/Kconfig.cpu
 create mode 100644 arch/h8300/Makefile
 create mode 100644 arch/h8300/kernel/Makefile
 create mode 100644 arch/h8300/kernel/vmlinux.lds.S

diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
new file mode 100644
index 0000000..9e352e6
--- /dev/null
+++ b/arch/h8300/Kconfig
@@ -0,0 +1,73 @@
+config H8300
+	bool
+	default y
+	select GENERIC_ATOMIC64
+	select HAVE_UID16
+	select VIRT_TO_BUS
+	select ARCH_WANT_IPC_PARSE_VERSION
+	select GENERIC_IRQ_SHOW
+	select FRAME_POINTER
+	select GENERIC_CPU_DEVICES
+	select MODULES_USE_ELF_RELA
+	select GENERIC_CLOCKEVENTS
+	select CLKDEV_LOOKUP
+	select COMMON_CLK
+	select ARCH_WANT_FRAME_POINTERS
+
+config RWSEM_GENERIC_SPINLOCK
+	def_bool y
+
+config GENERIC_HWEIGHT
+	def_bool y
+
+config GENERIC_CALIBRATE_DELAY
+	def_bool y
+
+config NO_IOPORT_MAP
+	def_bool y
+
+config HZ
+	int
+	default 100
+
+config NR_CPUS
+	int
+	default 1
+
+source "init/Kconfig"
+
+source "kernel/Kconfig.freezer"
+
+source "arch/h8300/Kconfig.cpu"
+
+menu "Kernel Features"
+
+source "kernel/Kconfig.preempt"
+
+source "mm/Kconfig"
+
+endmenu
+
+menu "Executable file formats"
+
+source "fs/Kconfig.binfmt"
+
+endmenu
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+menu "Kernel hacking"
+
+source "lib/Kconfig.debug"
+
+endmenu
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"
diff --git a/arch/h8300/Kconfig.cpu b/arch/h8300/Kconfig.cpu
new file mode 100644
index 0000000..fdacf92
--- /dev/null
+++ b/arch/h8300/Kconfig.cpu
@@ -0,0 +1,111 @@
+config CPU_H8300H
+	bool
+
+config CPU_H8S
+	bool
+
+config H83069
+	bool
+	select CPU_H8300H
+	select H8300_TMR16
+
+config H8S2678
+	bool
+	select CPU_H8S
+	select H8300_TPU
+
+config RAMKERNEL
+	bool
+
+config ROMKERNEL
+	bool
+
+menu "Processor type and features"
+
+choice
+prompt "H8/300 platform"
+
+config H8300_AE3068
+	bool "AE-3068/69"
+	select H83069
+	select RAMKERNEL
+	help
+	  AKI-H8/3068F / AKI-H8/3069F Flashmicom LAN Board Support
+	  More Information. (Japanese Only)
+	  <http://akizukidenshi.com/catalog/default.aspx>
+	  AE-3068/69 Evaluation Board Support
+	  More Information.
+	  <http://www.microtronique.com/ae3069lan.htm>
+
+config H8300_H8MAX
+	bool "H8MAX"
+	select H83069
+	select RAMKERNEL
+	select HAVE_IDE
+	help
+	  H8MAX Evaluation Board Support
+	  More Information. (Japanese Only)
+	  <http://strawberry-linux.com/h8/index.html>
+
+config H8300_KANEBEBE
+	bool "KaneBebe"
+	select H83069
+	select RAMKERNEL
+	help
+	  KaneBebe Evalition Board Support
+	  More Information. (Japanese Only)
+	  <http://www.nissin-tech.com/2009/10/uclinuxkane-bebe-h83069f.html>
+
+config H8300H_SIM
+	bool "H8/300H GDB Simulator"
+	select H83069
+	select ROMKERNEL
+	help
+	  GDB Simulator Support
+	  More Information.
+	  <http://sourceware.org/sid/>
+
+config H8S_EDOSK2674
+	bool "EDOSK-2674"
+	select H8S2678
+	select RAMKERNEL
+	help
+	  Renesas EDOSK-2674 Evaluation Board Support
+	  More Information.
+	  <http://www.azpower.com/H8-uClinux/index.html>
+	  <http://www.renesas.eu/products/tools/introductory_evaluation_tools/evaluation_development_os_kits/edosk2674r/edosk2674r_software_tools_root.jsp>
+
+config H8S_SIM
+	bool "H8S GDB Simulator"
+	select H8S2678
+	select ROMKERNEL
+	help
+	  GDB Simulator Support
+	  More Information.
+	  <http://sourceware.org/sid/>
+
+endchoice
+
+if ROMKERNEL
+config CPU_CLOCK
+	int "CPU Clock Frequency"
+	help
+	  CPU Clock Frequency
+
+config ROMSIZE
+	hex "ROM size"
+	default 0x200000
+
+config RAMSIZE
+	hex "RAM size"
+endif
+
+config RAMBASE
+	hex "RAM base address"
+	default 0x400000
+
+config OFFSET
+        hex "Load offset"
+	default 0
+
+endmenu
diff --git a/arch/h8300/Makefile b/arch/h8300/Makefile
new file mode 100644
index 0000000..44e915c
--- /dev/null
+++ b/arch/h8300/Makefile
@@ -0,0 +1,45 @@
+#
+# arch/h8300/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# (C) Copyright 2002-2015 Yoshinori Sato <ysato@users.sourceforge.jp>
+#
+
+cflags-$(CONFIG_CPU_H8300H)	:= -mh
+aflags-$(CONFIG_CPU_H8300H)	:= -mh -Wa,--mach=h8300h
+ldflags-$(CONFIG_CPU_H8300H)	:= -mh8300helf_linux
+cflags-$(CONFIG_CPU_H8S)	:= -ms
+aflags-$(CONFIG_CPU_H8S)	:= -ms -Wa,--mach=h8300s
+ldflags-$(CONFIG_CPU_H8S)	:= -mh8300self_linux
+
+KBUILD_CFLAGS += $(cflags-y)
+KBUILD_CFLAGS += -mint32 -fno-builtin
+KBUILD_CFLAGS += -D__linux__
+KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\"
+KBUILD_AFLAGS += $(aflags-y)
+LDFLAGS += $(ldflags-y)
+
+CROSS_COMPILE := h8300-unknown-linux-
+
+core-y	+= arch/$(ARCH)/kernel/ arch/$(ARCH)/mm/
+
+libs-y	+= arch/$(ARCH)/lib/
+
+boot := arch/h8300/boot
+
+archmrproper:
+
+archclean:
+	$(Q)$(MAKE) $(clean)=$(boot)
+
+vmlinux.srec vmlinux.bin zImage uImage.bin: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
+define archhelp
+  @echo  'vmlinux.bin  - Create raw binary'
+  @echo  'vmlinux.srec - Create srec binary'
+  @echo  'zImage       - Compressed kernel image'
+endef
diff --git a/arch/h8300/kernel/Makefile b/arch/h8300/kernel/Makefile
new file mode 100644
index 0000000..0b5fe00
--- /dev/null
+++ b/arch/h8300/kernel/Makefile
@@ -0,0 +1,16 @@
+#
+# Makefile for the linux kernel.
+#
+
+extra-y := vmlinux.lds
+
+obj-y := process.o traps.o ptrace.o \
+	 signal.o setup.o syscalls.o \
+	 irq.o entry.o dma.o cpu/
+
+obj-$(CONFIG_ROMKERNEL) += head_rom.o
+obj-$(CONFIG_RAMKERNEL) += head_ram.o
+
+obj-$(CONFIG_MODULES) += module.o h8300_ksyms.o
+obj-$(CONFIG_H8300H_SIM) += sim-console.o
+obj-$(CONFIG_H8S_SIM) += sim-console.o
diff --git a/arch/h8300/kernel/vmlinux.lds.S b/arch/h8300/kernel/vmlinux.lds.S
new file mode 100644
index 0000000..c92c096
--- /dev/null
+++ b/arch/h8300/kernel/vmlinux.lds.S
@@ -0,0 +1,67 @@
+#include <asm-generic/vmlinux.lds.h>
+#include <asm/page.h>
+
+#define ROMTOP 0x000000
+#define RAMTOP CONFIG_RAMBASE
+
+jiffies = jiffies_64 + 4;
+
+ENTRY(_start)
+
+SECTIONS
+{
+#if defined(CONFIG_ROMKERNEL)
+	. = ROMTOP;
+	.vectors :
+	{
+	_vector = . ;
+		*(.vector*)
+	}
+#else
+	. = RAMTOP;
+	_ramstart = .;
+	. = . + CONFIG_OFFSET;
+#endif
+	_text = .;
+	HEAD_TEXT_SECTION
+	.text : {
+	_stext = . ;
+		TEXT_TEXT
+		SCHED_TEXT
+		LOCK_TEXT
+#if defined(CONFIG_ROMKERNEL)
+		*(.int_redirect)
+#endif
+	_etext = . ;
+	}
+	EXCEPTION_TABLE(16)
+	NOTES
+	RO_DATA_SECTION(4)
+	ROMEND = .;
+#if defined(CONFIG_ROMKERNEL)
+	. = RAMTOP;
+	_ramstart = .;
+#define ADDR(x) ROMEND
+#else
+#endif
+	_sdata = . ;
+	__data_start = . ;
+	RW_DATA_SECTION(0,0,0)
+#if defined(CONFIG_ROMKERNEL)
+#undef ADDR
+#endif	
+	. = ALIGN(0x4) ;
+	__init_begin = .;
+	INIT_TEXT_SECTION(4)
+	INIT_DATA_SECTION(4)
+	SECURITY_INIT
+	__init_end = .;
+	_edata = . ;
+	_begin_data = LOADADDR(.data);
+	_sbss =.;
+	BSS_SECTION(0, 0 ,0)
+	_ebss =.;
+	_ramend = .;
+	_end = .;
+	DISCARDS
+}
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 11/16] h8300: clock driver
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
                   ` (9 preceding siblings ...)
  2015-03-09  8:47 ` [PATCH v6 10/16] h8300: Build scripts Yoshinori Sato
@ 2015-03-09  8:47 ` Yoshinori Sato
  2015-03-09  9:13   ` Jeff Kirsher
  2015-03-09  8:47 ` [PATCH v6 12/16] h8300: clocksource Yoshinori Sato
                   ` (5 subsequent siblings)
  16 siblings, 1 reply; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:47 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 drivers/clk/Makefile            |   1 +
 drivers/clk/h8300/Makefile      |   2 +
 drivers/clk/h8300/clk-h83069.c  |  80 +++++++++++++++++++
 drivers/clk/h8300/clk-h8s2678.c | 171 ++++++++++++++++++++++++++++++++++++++++
 include/linux/clk-provider.h    |  12 +++
 5 files changed, 266 insertions(+)
 create mode 100644 drivers/clk/h8300/Makefile
 create mode 100644 drivers/clk/h8300/clk-h83069.c
 create mode 100644 drivers/clk/h8300/clk-h8s2678.c

diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index d478ceb..593b09c 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -70,3 +70,4 @@ obj-$(CONFIG_ARCH_U8500)		+= ux500/
 obj-$(CONFIG_COMMON_CLK_VERSATILE)	+= versatile/
 obj-$(CONFIG_X86)			+= x86/
 obj-$(CONFIG_ARCH_ZYNQ)			+= zynq/
+obj-$(CONFIG_H8300)		+= h8300/
diff --git a/drivers/clk/h8300/Makefile b/drivers/clk/h8300/Makefile
new file mode 100644
index 0000000..82eab42
--- /dev/null
+++ b/drivers/clk/h8300/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_H83069) += clk-h83069.o
+obj-$(CONFIG_H8S2678) += clk-h8s2678.o
diff --git a/drivers/clk/h8300/clk-h83069.c b/drivers/clk/h8300/clk-h83069.c
new file mode 100644
index 0000000..0a20dd5
--- /dev/null
+++ b/drivers/clk/h8300/clk-h83069.c
@@ -0,0 +1,80 @@
+/*
+ * H8/3069 clock driver
+ *
+ * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
+ */
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+
+static DEFINE_SPINLOCK(clklock);
+
+#define DIVCR ((unsigned char *)0xfee01b)
+#define DEVNAME "h83069-cpg"
+
+static int clk_probe(struct platform_device *pdev)
+{
+	struct clk *clk;
+	int *hz = dev_get_platdata(&pdev->dev);
+
+	clk = clk_register_fixed_rate(&pdev->dev, "master_clk", NULL,
+				      CLK_IS_ROOT, *hz);
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "failed to register clock");
+		return PTR_ERR(clk);
+	}
+	clk_register_clkdev(clk, "master_clk", DEVNAME ".%d", 0);
+
+	clk = clk_register_divider(&pdev->dev, "core_clk", "master_clk",
+				   CLK_SET_RATE_GATE, DIVCR, 0, 2,
+				   CLK_DIVIDER_POWER_OF_TWO, &clklock);
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "failed to register clock");
+		return PTR_ERR(clk);
+	}
+	clk_register_clkdev(clk, "core_clk", DEVNAME ".%d", 0);
+
+	clk = clk_register_fixed_factor(&pdev->dev, "peripheral_clk", "core_clk",
+					0, 1, 1);
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "failed to register clock");
+		return PTR_ERR(clk);
+	}
+	clk_register_clkdev(clk, "peripheral_clk", NULL);
+	return 0;
+}
+
+static struct platform_driver cpg_driver = {
+	.driver = {
+		.name = DEVNAME,
+	},
+	.probe = clk_probe,
+};
+
+early_platform_init(DEVNAME, &cpg_driver);
+
+static struct platform_device clk_device = {
+	.name		= DEVNAME,
+	.id		= 0,
+};
+
+static struct platform_device *devices[] __initdata = {
+	&clk_device,
+};
+
+int __init h8300_clk_init(int hz)
+{
+	static int master_hz;
+
+	master_hz = hz;
+	clk_device.dev.platform_data = &master_hz;
+	early_platform_add_devices(devices,
+				   ARRAY_SIZE(devices));
+	early_platform_driver_register_all(DEVNAME);
+	early_platform_driver_probe(DEVNAME, 1, 0);
+	return 0;
+}
diff --git a/drivers/clk/h8300/clk-h8s2678.c b/drivers/clk/h8300/clk-h8s2678.c
new file mode 100644
index 0000000..55b490c
--- /dev/null
+++ b/drivers/clk/h8300/clk-h8s2678.c
@@ -0,0 +1,171 @@
+/*
+ * H8S2678 clock driver
+ *
+ * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
+ */
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+
+static DEFINE_SPINLOCK(clklock);
+
+#define SCKCR 0xffff3b
+#define PLLCR 0xffff45
+#define DEVNAME "h8s2678-cpg"
+#define MAX_FREQ 33333333
+#define MIN_FREQ  8000000
+
+static unsigned long pll_recalc_rate(struct clk_hw *hw,
+		unsigned long parent_rate)
+{
+	int mul = 1 << (ctrl_inb(PLLCR) & 3);
+
+	return parent_rate * mul;
+}
+
+static long pll_round_rate(struct clk_hw *hw, unsigned long rate,
+				unsigned long *prate)
+{
+	int i, m = -1;
+	long offset[3];
+
+	if (rate > MAX_FREQ)
+		rate = MAX_FREQ;
+	if (rate < MIN_FREQ)
+		rate = MIN_FREQ;
+
+	for (i = 0; i < 3; i++)
+		offset[i] = abs(rate - (*prate * (1 << i)));
+	for (i = 0; i < 3; i++)
+		if (m < 0)
+			m = i;
+		else
+			m = (offset[i] < offset[m])?i:m;
+
+	return *prate * (1 << m);
+}
+
+static int pll_set_rate(struct clk_hw *hw, unsigned long rate,
+			unsigned long parent_rate)
+{
+	int pll;
+	unsigned char val;
+	unsigned long flags;
+
+	pll = ((rate / parent_rate) / 2) & 0x03;
+	spin_lock_irqsave(&clklock, flags);
+	val = ctrl_inb(SCKCR);
+	val |= 0x08;
+	ctrl_outb(val, SCKCR);
+	val = ctrl_inb(PLLCR);
+	val &= ~0x03;
+	val |= pll;
+	ctrl_outb(val, PLLCR);
+	spin_unlock_irqrestore(&clklock, flags);
+	return 0;
+}
+
+static const struct clk_ops pll_ops = {
+	.recalc_rate = pll_recalc_rate,
+	.round_rate = pll_round_rate,
+	.set_rate = pll_set_rate,
+};
+
+static struct clk *pll_clk_register(struct device *dev, const char *name,
+				const char *parent)
+{
+	struct clk_hw *hw;
+	struct clk *clk;
+	struct clk_init_data init;
+
+	hw = kzalloc(sizeof(struct clk_hw), GFP_KERNEL);
+	if (!hw)
+		return ERR_PTR(-ENOMEM);
+
+	init.name = name;
+	init.ops = &pll_ops;
+	init.flags = CLK_IS_BASIC;
+	init.parent_names = &parent;
+	init.num_parents = 1;
+	hw->init = &init;
+
+	clk = clk_register(dev, hw);
+	if (IS_ERR(clk))
+		kfree(hw);
+
+	return clk;
+}
+
+static int clk_probe(struct platform_device *pdev)
+{
+	struct clk *clk;
+	int *hz = dev_get_platdata(&pdev->dev);
+
+	clk = clk_register_fixed_rate(&pdev->dev, "master_clk", NULL,
+				      CLK_IS_ROOT, *hz);
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "failed to register clock");
+		return PTR_ERR(clk);
+	}
+	clk_register_clkdev(clk, "master_clk", DEVNAME ".%d", 0);
+
+	clk = pll_clk_register(&pdev->dev, "pll_clk", "master_clk");
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "failed to register clock");
+		return PTR_ERR(clk);
+	}
+	clk_register_clkdev(clk, "pll_clk", DEVNAME ".%d", 0);
+
+	clk = clk_register_divider(&pdev->dev, "core_clk", "pll_clk",
+				   CLK_SET_RATE_GATE, (unsigned char *)SCKCR,
+				   0, 3, CLK_DIVIDER_POWER_OF_TWO, &clklock);
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "failed to register clock");
+		return PTR_ERR(clk);
+	}
+	clk_register_clkdev(clk, "core_clk", DEVNAME ".%d", 0);
+
+	clk = clk_register_fixed_factor(&pdev->dev, "peripheral_clk", "core_clk",
+					0, 1, 1);
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "failed to register clock");
+		return PTR_ERR(clk);
+	}
+	clk_register_clkdev(clk, "peripheral_clk", NULL);
+	return 0;
+}
+
+static struct platform_driver cpg_driver = {
+	.driver = {
+		.name = DEVNAME,
+	},
+	.probe = clk_probe,
+};
+
+early_platform_init(DEVNAME, &cpg_driver);
+
+static struct platform_device clk_device = {
+	.name		= DEVNAME,
+	.id		= 0,
+};
+
+static struct platform_device *devices[] __initdata = {
+	&clk_device,
+};
+
+int __init h8300_clk_init(int hz)
+{
+	static int master_hz;
+
+	master_hz = hz;
+	clk_device.dev.platform_data = &master_hz;
+	early_platform_add_devices(devices,
+				   ARRAY_SIZE(devices));
+	early_platform_driver_register_all(DEVNAME);
+	early_platform_driver_probe(DEVNAME, 1, 0);
+	return 0;
+}
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 5591ea7..6059414 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -675,6 +675,18 @@ static inline void clk_writel(u32 val, u32 __iomem *reg)
 	iowrite32be(val, reg);
 }
 
+#elif IS_ENABLED(CONFIG_H8300)
+
+static inline u32 clk_readl(u32 __iomem *reg)
+{
+	return __raw_readb(reg);
+}
+
+static inline void clk_writel(u32 val, u32 __iomem *reg)
+{
+	__raw_writeb(val, reg);
+}
+
 #else	/* platform dependent I/O accessors */
 
 static inline u32 clk_readl(u32 __iomem *reg)
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 12/16] h8300: clocksource
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
                   ` (10 preceding siblings ...)
  2015-03-09  8:47 ` [PATCH v6 11/16] h8300: clock driver Yoshinori Sato
@ 2015-03-09  8:47 ` Yoshinori Sato
  2015-03-09  8:47 ` [PATCH v6 13/16] h8300: configs Yoshinori Sato
                   ` (4 subsequent siblings)
  16 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:47 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 drivers/clocksource/Kconfig         |   6 +
 drivers/clocksource/Makefile        |   3 +
 drivers/clocksource/h8300_timer16.c | 332 ++++++++++++++++++++++++++++++
 drivers/clocksource/h8300_timer8.c  | 398 ++++++++++++++++++++++++++++++++++++
 drivers/clocksource/h8300_tpu.c     | 203 ++++++++++++++++++
 5 files changed, 942 insertions(+)
 create mode 100644 drivers/clocksource/h8300_timer16.c
 create mode 100644 drivers/clocksource/h8300_timer8.c
 create mode 100644 drivers/clocksource/h8300_tpu.c

diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 68161f7..81707b8 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -250,4 +250,10 @@ config CLKSRC_PXA
 	help
 	  This enables OST0 support available on PXA and SA-11x0
 	  platforms.
+config H8300_TMR16
+        bool
+
+config H8300_TPU
+        bool
+
 endmenu
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index 752d5c7..99b45f7 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -51,3 +51,6 @@ obj-$(CONFIG_ARCH_INTEGRATOR_AP)	+= timer-integrator-ap.o
 obj-$(CONFIG_CLKSRC_VERSATILE)		+= versatile.o
 obj-$(CONFIG_CLKSRC_MIPS_GIC)		+= mips-gic-timer.o
 obj-$(CONFIG_ASM9260_TIMER)		+= asm9260_timer.o
+obj-$(CONFIG_H8300)			+= h8300_timer8.o
+obj-$(CONFIG_H8300_TMR16)		+= h8300_timer16.o
+obj-$(CONFIG_H8300_TPU)			+= h8300_tpu.o
diff --git a/drivers/clocksource/h8300_timer16.c b/drivers/clocksource/h8300_timer16.c
new file mode 100644
index 0000000..bf6a74c
--- /dev/null
+++ b/drivers/clocksource/h8300_timer16.c
@@ -0,0 +1,332 @@
+/*
+ *  linux/arch/h8300/kernel/timer/timer16.c
+ *
+ *  Yoshinori Sato <ysato@users.sourcefoge.jp>
+ *
+ *  16bit Timer clockevent device
+ *
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/clockchips.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <asm/segment.h>
+#include <asm/irq.h>
+#include <asm/timer.h>
+
+#define TSTR	0
+#define TSNC	1
+#define TMDR	2
+#define TOLR	3
+#define TISRA	4
+#define TISRB	5
+#define TISRC	6
+
+#define TCR	0
+#define TIOR	1
+#define TCNT	2
+#define GRA	4
+#define GRB	6
+
+#define FLAG_REPROGRAM (1 << 0)
+#define FLAG_SKIPEVENT (1 << 1)
+#define FLAG_IRQCONTEXT (1 << 2)
+#define FLAG_STARTED (1 << 3)
+
+#define ONESHOT  0
+#define PERIODIC 1
+
+#define RELATIVE 0
+#define ABSOLUTE 1
+
+struct timer16_priv {
+	struct platform_device *pdev;
+	struct clock_event_device ced;
+	struct irqaction irqaction;
+	unsigned long mapbase;
+	unsigned long mapcommon;
+	unsigned long flags;
+	unsigned int rate;
+	unsigned short gra;
+	unsigned char enb;
+	unsigned char imfa;
+	unsigned char imiea;
+	unsigned char ovf;
+	raw_spinlock_t lock;
+	struct clk *clk;
+};
+
+static unsigned long timer16_get_counter(struct timer16_priv *p)
+{
+	unsigned long v1, v2, v3;
+	int o1, o2;
+
+	o1 = ctrl_inb(p->mapcommon + TISRC) & p->ovf;
+
+	/* Make sure the timer value is stable. Stolen from acpi_pm.c */
+	do {
+		o2 = o1;
+		v1 = ctrl_inw(p->mapbase + TCNT);
+		v2 = ctrl_inw(p->mapbase + TCNT);
+		v3 = ctrl_inw(p->mapbase + TCNT);
+		o1 = ctrl_inb(p->mapcommon + TISRC) & p->ovf;
+	} while (unlikely((o1 != o2) || (v1 > v2 && v1 < v3)
+			  || (v2 > v3 && v2 < v1) || (v3 > v1 && v3 < v2)));
+
+	v2 |= 0x10000;
+	return v2;
+}
+
+
+static irqreturn_t timer16_interrupt(int irq, void *dev_id)
+{
+	struct timer16_priv *p = (struct timer16_priv *)dev_id;
+
+	ctrl_outb(ctrl_inb(p->mapcommon + TISRA) & ~p->imfa,
+		  p->mapcommon + TISRA);
+
+	p->flags |= FLAG_IRQCONTEXT;
+	ctrl_outw(p->gra, p->mapbase + GRA);
+	if (!(p->flags & FLAG_SKIPEVENT)) {
+		if (p->ced.mode == CLOCK_EVT_MODE_ONESHOT) {
+			ctrl_outb(ctrl_inb(p->mapcommon + TSTR) & ~p->enb,
+				  p->mapcommon + TISRA);
+		}
+		p->ced.event_handler(&p->ced);
+	}
+
+	p->flags &= ~(FLAG_SKIPEVENT | FLAG_IRQCONTEXT);
+
+	return IRQ_HANDLED;
+}
+
+static void timer16_set_next(struct timer16_priv *p, unsigned long delta)
+{
+	unsigned long flags;
+	unsigned long now;
+
+	raw_spin_lock_irqsave(&p->lock, flags);
+	if (delta >= 0x10000)
+		dev_warn(&p->pdev->dev, "delta out of range\n");
+	now = timer16_get_counter(p);
+	p->gra = delta;
+	ctrl_outb(ctrl_inb(p->mapcommon + TISRA) | p->imiea,
+		  p->mapcommon + TISRA);
+	if (delta > now)
+		ctrl_outw(delta, p->mapbase + GRA);
+	else
+		ctrl_outw(now + 1, p->mapbase + GRA);
+
+	raw_spin_unlock_irqrestore(&p->lock, flags);
+}
+
+static int timer16_enable(struct timer16_priv *p)
+{
+	p->rate = clk_get_rate(p->clk) / 8;
+	ctrl_outw(0xffff, p->mapbase + GRA);
+	ctrl_outw(0x0000, p->mapbase + TCNT);
+	ctrl_outb(0xa3, p->mapbase + TCR);
+	ctrl_outb(ctrl_inb(p->mapcommon + TSTR) | p->enb,
+		  p->mapcommon + TSTR);
+
+	return 0;
+}
+
+static int timer16_start(struct timer16_priv *p)
+{
+	int ret = 0;
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&p->lock, flags);
+
+	if (!(p->flags & FLAG_STARTED))
+		ret = timer16_enable(p);
+
+	if (ret)
+		goto out;
+	p->flags |= FLAG_STARTED;
+
+ out:
+	raw_spin_unlock_irqrestore(&p->lock, flags);
+
+	return ret;
+}
+
+static void timer16_stop(struct timer16_priv *p)
+{
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&p->lock, flags);
+
+	ctrl_outb(ctrl_inb(p->mapcommon + TSTR) & ~p->enb,
+		  p->mapcommon + TSTR);
+
+	raw_spin_unlock_irqrestore(&p->lock, flags);
+}
+
+static inline struct timer16_priv *ced_to_priv(struct clock_event_device *ced)
+{
+	return container_of(ced, struct timer16_priv, ced);
+}
+
+static void timer16_clock_event_start(struct timer16_priv *p, int periodic)
+{
+	struct clock_event_device *ced = &p->ced;
+
+	timer16_start(p);
+
+	ced->shift = 32;
+	ced->mult = div_sc(p->rate, NSEC_PER_SEC, ced->shift);
+	ced->max_delta_ns = clockevent_delta2ns(0xffff, ced);
+	ced->min_delta_ns = clockevent_delta2ns(0x0001, ced);
+
+	timer16_set_next(p, periodic?(p->rate + HZ/2) / HZ:0x10000);
+}
+
+static void timer16_clock_event_mode(enum clock_event_mode mode,
+				    struct clock_event_device *ced)
+{
+	struct timer16_priv *p = ced_to_priv(ced);
+
+	switch (mode) {
+	case CLOCK_EVT_MODE_PERIODIC:
+		dev_info(&p->pdev->dev, "used for periodic clock events\n");
+		timer16_stop(p);
+		timer16_clock_event_start(p, PERIODIC);
+		break;
+	case CLOCK_EVT_MODE_ONESHOT:
+		dev_info(&p->pdev->dev, "used for oneshot clock events\n");
+		timer16_stop(p);
+		timer16_clock_event_start(p, ONESHOT);
+		break;
+	case CLOCK_EVT_MODE_SHUTDOWN:
+	case CLOCK_EVT_MODE_UNUSED:
+		timer16_stop(p);
+		break;
+	default:
+		break;
+	}
+}
+
+static int timer16_clock_event_next(unsigned long delta,
+				   struct clock_event_device *ced)
+{
+	struct timer16_priv *p = ced_to_priv(ced);
+
+	BUG_ON(ced->mode != CLOCK_EVT_MODE_ONESHOT);
+	timer16_set_next(p, delta - 1);
+
+	return 0;
+}
+
+#define REG_CH   0
+#define REG_COMM 1
+
+static int timer16_setup(struct timer16_priv *p, struct platform_device *pdev)
+{
+	struct h8300_timer16_config *cfg = dev_get_platdata(&pdev->dev);
+	struct resource *res[2];
+	int ret, irq;
+
+	memset(p, 0, sizeof(*p));
+	p->pdev = pdev;
+
+	res[REG_CH] = platform_get_resource(p->pdev,
+					    IORESOURCE_MEM, REG_CH);
+	res[REG_COMM] = platform_get_resource(p->pdev,
+					      IORESOURCE_MEM, REG_COMM);
+	if (!res[REG_CH] || !res[REG_COMM]) {
+		dev_err(&p->pdev->dev, "failed to get I/O memory\n");
+		return -ENXIO;
+	}
+	irq = platform_get_irq(p->pdev, 0);
+	if (irq < 0) {
+		dev_err(&p->pdev->dev, "failed to get irq\n");
+		return irq;
+	}
+
+	p->clk = clk_get(&p->pdev->dev, "peripheral_clk");
+	if (IS_ERR(p->clk)) {
+		dev_err(&p->pdev->dev, "can't get clk\n");
+		return PTR_ERR(p->clk);
+	}
+
+	p->pdev = pdev;
+	p->mapbase = res[REG_CH]->start;
+	p->mapcommon = res[REG_COMM]->start;
+	p->enb = 1 << cfg->enb;
+	p->imfa = 1 << cfg->imfa;
+	p->imiea = 1 << cfg->imiea;
+	p->ced.name = pdev->name;
+	p->ced.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
+	p->ced.rating = 200;
+	p->ced.cpumask = cpumask_of(0);
+	p->ced.set_next_event = timer16_clock_event_next;
+	p->ced.set_mode = timer16_clock_event_mode;
+
+	ret = request_irq(irq, timer16_interrupt,
+			  IRQF_DISABLED | IRQF_TIMER, pdev->name, p);
+	if (ret < 0) {
+		dev_err(&p->pdev->dev, "failed to request irq %d\n", irq);
+		return ret;
+	}
+
+	clockevents_register_device(&p->ced);
+
+	return 0;
+}
+
+static int timer16_probe(struct platform_device *pdev)
+{
+	struct timer16_priv *p = platform_get_drvdata(pdev);
+
+	if (p) {
+		dev_info(&pdev->dev, "kept as earlytimer\n");
+		return 0;
+	}
+
+	p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL);
+	if (!p)
+		return -ENOMEM;
+
+	return timer16_setup(p, pdev);
+}
+
+static int timer16_remove(struct platform_device *pdev)
+{
+	return -EBUSY;
+}
+
+static struct platform_driver timer16_driver = {
+	.probe		= timer16_probe,
+	.remove		= timer16_remove,
+	.driver		= {
+		.name	= "h8300h-16timer",
+	}
+};
+
+static int __init timer16_init(void)
+{
+	return platform_driver_register(&timer16_driver);
+}
+
+static void __exit timer16_exit(void)
+{
+	platform_driver_unregister(&timer16_driver);
+}
+
+subsys_initcall(timer16_init);
+module_exit(timer16_exit);
+MODULE_AUTHOR("Yoshinori Sato");
+MODULE_DESCRIPTION("H8/300H 16bit Timer Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/clocksource/h8300_timer8.c b/drivers/clocksource/h8300_timer8.c
new file mode 100644
index 0000000..3d84b6c
--- /dev/null
+++ b/drivers/clocksource/h8300_timer8.c
@@ -0,0 +1,398 @@
+/*
+ *  linux/arch/h8300/kernel/cpu/timer/timer8.c
+ *
+ *  Yoshinori Sato <ysato@users.sourcefoge.jp>
+ *
+ *  8bit Timer driver
+ *
+ */
+
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/clocksource.h>
+#include <linux/clockchips.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <asm/irq.h>
+#include <asm/timer.h>
+
+#define _8TCR	0
+#define _8TCSR	2
+#define TCORA	4
+#define TCORB	6
+#define _8TCNT	8
+
+#define FLAG_REPROGRAM (1 << 0)
+#define FLAG_SKIPEVENT (1 << 1)
+#define FLAG_IRQCONTEXT (1 << 2)
+#define FLAG_STARTED (1 << 3)
+
+#define ONESHOT  0
+#define PERIODIC 1
+
+#define RELATIVE 0
+#define ABSOLUTE 1
+
+struct timer8_priv {
+	struct platform_device *pdev;
+	int mode;
+	union {
+		struct clocksource cs;
+		struct clock_event_device ced;
+	} clk;
+	struct irqaction irqaction;
+	unsigned long mapbase;
+	raw_spinlock_t lock;
+	unsigned long total_cycles;
+	unsigned int cs_enabled;
+	unsigned long flags;
+	unsigned int rate;
+	unsigned short tcora;
+	unsigned short div;
+	struct clk *pclk;
+};
+
+static const int div_rate[] = {8, 64, 8192};
+
+static unsigned long timer8_get_counter(struct timer8_priv *p)
+{
+	unsigned long v1, v2, v3;
+	int o1, o2;
+
+	o1 = ctrl_inb(p->mapbase + _8TCSR) & 0x20;
+
+	/* Make sure the timer value is stable. Stolen from acpi_pm.c */
+	do {
+		o2 = o1;
+		v1 = ctrl_inw(p->mapbase + _8TCNT);
+		v2 = ctrl_inw(p->mapbase + _8TCNT);
+		v3 = ctrl_inw(p->mapbase + _8TCNT);
+		o1 = ctrl_inb(p->mapbase + _8TCSR) & 0x20;
+	} while (unlikely((o1 != o2) || (v1 > v2 && v1 < v3)
+			  || (v2 > v3 && v2 < v1) || (v3 > v1 && v3 < v2)));
+
+	v2 |= o1 << 10;
+	return v2;
+}
+
+static irqreturn_t timer8_interrupt(int irq, void *dev_id)
+{
+	struct timer8_priv *p = dev_id;
+
+	switch (p->mode) {
+	case H8300_TMR8_CLKSRC:
+		ctrl_outb(ctrl_inb(p->mapbase + _8TCSR) & ~0x20,
+			  p->mapbase + _8TCSR);
+		p->total_cycles += 0x10000;
+		break;
+	case H8300_TMR8_CLKEVTDEV:
+		ctrl_outb(ctrl_inb(p->mapbase + _8TCSR) & ~0x40,
+			  p->mapbase + _8TCSR);
+		p->flags |= FLAG_IRQCONTEXT;
+		ctrl_outw(p->tcora, p->mapbase + TCORA);
+		if (!(p->flags & FLAG_SKIPEVENT)) {
+			if (p->clk.ced.mode == CLOCK_EVT_MODE_ONESHOT)
+				ctrl_outw(0x0000, p->mapbase + _8TCR);
+			p->clk.ced.event_handler(&p->clk.ced);
+		}
+		p->flags &= ~(FLAG_SKIPEVENT | FLAG_IRQCONTEXT);
+		break;
+	}
+
+	return IRQ_HANDLED;
+}
+
+static inline struct timer8_priv *cs_to_priv(struct clocksource *cs)
+{
+	return container_of(cs, struct timer8_priv, clk.cs);
+}
+
+static cycle_t timer8_clocksource_read(struct clocksource *cs)
+{
+	struct timer8_priv *p = cs_to_priv(cs);
+	unsigned long flags, raw;
+	unsigned long value;
+
+	raw_spin_lock_irqsave(&p->lock, flags);
+	value = p->total_cycles;
+	raw = timer8_get_counter(p);
+	raw_spin_unlock_irqrestore(&p->lock, flags);
+
+	return value + raw;
+}
+
+static int timer8_clocksource_enable(struct clocksource *cs)
+{
+	struct timer8_priv *p = cs_to_priv(cs);
+
+	WARN_ON(p->cs_enabled);
+
+	p->total_cycles = 0;
+	ctrl_outw(0, p->mapbase + _8TCNT);
+	ctrl_outw(0x2400 | p->div, p->mapbase + _8TCR);
+
+	p->cs_enabled = true;
+	return 0;
+}
+
+static void timer8_clocksource_disable(struct clocksource *cs)
+{
+	struct timer8_priv *p = cs_to_priv(cs);
+
+	WARN_ON(!p->cs_enabled);
+
+	ctrl_outb(0, p->mapbase + _8TCR);
+	p->cs_enabled = false;
+}
+
+static void timer8_set_next(struct timer8_priv *p, unsigned long delta)
+{
+	unsigned long flags;
+	unsigned long now;
+
+	raw_spin_lock_irqsave(&p->lock, flags);
+	if (delta >= 0x10000)
+		dev_warn(&p->pdev->dev, "delta out of range\n");
+	now = timer8_get_counter(p);
+	p->tcora = delta;
+	ctrl_outb(ctrl_inb(p->mapbase + _8TCR) | 0x40, p->mapbase + _8TCR);
+	if (delta > now)
+		ctrl_outw(delta, p->mapbase + TCORA);
+	else
+		ctrl_outw(now + 1, p->mapbase + TCORA);
+
+	raw_spin_unlock_irqrestore(&p->lock, flags);
+}
+
+static int timer8_enable(struct timer8_priv *p)
+{
+	p->rate = clk_get_rate(p->pclk) / div_rate[p->div];
+	ctrl_outw(0xffff, p->mapbase + TCORA);
+	ctrl_outw(0x0000, p->mapbase + _8TCNT);
+	ctrl_outw(0x0c01, p->mapbase + _8TCR);
+
+	return 0;
+}
+
+static int timer8_start(struct timer8_priv *p)
+{
+	int ret = 0;
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&p->lock, flags);
+
+	if (!(p->flags & FLAG_STARTED))
+		ret = timer8_enable(p);
+
+	if (ret)
+		goto out;
+	p->flags |= FLAG_STARTED;
+
+ out:
+	raw_spin_unlock_irqrestore(&p->lock, flags);
+
+	return ret;
+}
+
+static void timer8_stop(struct timer8_priv *p)
+{
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&p->lock, flags);
+
+	ctrl_outw(0x0000, p->mapbase + _8TCR);
+
+	raw_spin_unlock_irqrestore(&p->lock, flags);
+}
+
+static inline struct timer8_priv *ced_to_priv(struct clock_event_device *ced)
+{
+	return container_of(ced, struct timer8_priv, clk.ced);
+}
+
+static void timer8_clock_event_start(struct timer8_priv *p, int periodic)
+{
+	struct clock_event_device *ced = &p->clk.ced;
+
+	timer8_start(p);
+
+	ced->shift = 32;
+	ced->mult = div_sc(p->rate, NSEC_PER_SEC, ced->shift);
+	ced->max_delta_ns = clockevent_delta2ns(0xffff, ced);
+	ced->min_delta_ns = clockevent_delta2ns(0x0001, ced);
+
+	timer8_set_next(p, periodic?(p->rate + HZ/2) / HZ:0x10000);
+}
+
+static void timer8_clock_event_mode(enum clock_event_mode mode,
+				    struct clock_event_device *ced)
+{
+	struct timer8_priv *p = ced_to_priv(ced);
+
+	switch (mode) {
+	case CLOCK_EVT_MODE_PERIODIC:
+		dev_info(&p->pdev->dev, "used for periodic clock events\n");
+		timer8_stop(p);
+		timer8_clock_event_start(p, PERIODIC);
+		break;
+	case CLOCK_EVT_MODE_ONESHOT:
+		dev_info(&p->pdev->dev, "used for oneshot clock events\n");
+		timer8_stop(p);
+		timer8_clock_event_start(p, ONESHOT);
+		break;
+	case CLOCK_EVT_MODE_SHUTDOWN:
+	case CLOCK_EVT_MODE_UNUSED:
+		timer8_stop(p);
+		break;
+	default:
+		break;
+	}
+}
+
+static int timer8_clock_event_next(unsigned long delta,
+				   struct clock_event_device *ced)
+{
+	struct timer8_priv *p = ced_to_priv(ced);
+
+	BUG_ON(ced->mode != CLOCK_EVT_MODE_ONESHOT);
+	timer8_set_next(p, delta - 1);
+
+	return 0;
+}
+
+#define CMI 0
+#define OVI 1
+static int __init timer8_setup(struct timer8_priv *p,
+			       struct platform_device *pdev)
+{
+	struct h8300_timer8_config *cfg = dev_get_platdata(&pdev->dev);
+	struct resource *res;
+	int irq[2];
+	int ret;
+
+	memset(p, 0, sizeof(*p));
+	p->pdev = pdev;
+
+	res = platform_get_resource(p->pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&p->pdev->dev, "failed to get I/O memory\n");
+		return -ENXIO;
+	}
+
+	irq[CMI] = platform_get_irq(p->pdev, CMI);
+	irq[OVI] = platform_get_irq(p->pdev, OVI);
+	if (irq[CMI] < 0 || irq[OVI] < 0) {
+		dev_err(&p->pdev->dev, "failed to get irq\n");
+		return -ENXIO;
+	}
+
+	p->mapbase = res->start;
+
+	p->irqaction.name = dev_name(&p->pdev->dev);
+	p->irqaction.handler = timer8_interrupt;
+	p->irqaction.dev_id = p;
+	p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER;
+
+	p->mode = cfg->mode;
+	p->div = cfg->div;
+
+	p->pclk = clk_get(&p->pdev->dev, "peripheral_clk");
+	if (IS_ERR(p->pclk)) {
+		dev_err(&p->pdev->dev, "can't get clk\n");
+		return PTR_ERR(p->pclk);
+	}
+
+	switch (p->mode) {
+	case H8300_TMR8_CLKSRC:
+		p->clk.cs.name = pdev->name;
+		p->clk.cs.rating = 200;
+		p->clk.cs.read = timer8_clocksource_read;
+		p->clk.cs.enable = timer8_clocksource_enable;
+		p->clk.cs.disable = timer8_clocksource_disable;
+		p->clk.cs.mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8);
+		p->clk.cs.flags = CLOCK_SOURCE_IS_CONTINUOUS;
+
+		ret = setup_irq(irq[OVI], &p->irqaction);
+		if (ret < 0) {
+			dev_err(&p->pdev->dev,
+				"failed to request irq %d\n", irq[OVI]);
+			return ret;
+		}
+		clocksource_register_hz(&p->clk.cs,
+					clk_get_rate(p->pclk) / div_rate[p->div]);
+		break;
+	case H8300_TMR8_CLKEVTDEV:
+		p->clk.ced.name = pdev->name;
+		p->clk.ced.features = CLOCK_EVT_FEAT_PERIODIC |
+					CLOCK_EVT_FEAT_ONESHOT;
+		p->clk.ced.rating = 200;
+		p->clk.ced.cpumask = cpumask_of(0);
+		p->clk.ced.set_next_event = timer8_clock_event_next;
+		p->clk.ced.set_mode = timer8_clock_event_mode;
+
+		ret = setup_irq(irq[CMI], &p->irqaction);
+		if (ret < 0) {
+			dev_err(&p->pdev->dev,
+				"failed to request irq %d\n", irq[CMI]);
+			return ret;
+		}
+		clockevents_register_device(&p->clk.ced);
+		break;
+	}
+	platform_set_drvdata(pdev, p);
+
+	return 0;
+}
+
+static int timer8_probe(struct platform_device *pdev)
+{
+	struct timer8_priv *p = platform_get_drvdata(pdev);
+
+	if (p) {
+		dev_info(&pdev->dev, "kept as earlytimer\n");
+		return 0;
+	}
+
+	p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL);
+	if (!p)
+		return -ENOMEM;
+
+	return timer8_setup(p, pdev);
+}
+
+static int timer8_remove(struct platform_device *pdev)
+{
+	return -EBUSY;
+}
+
+static struct platform_driver timer8_driver = {
+	.probe		= timer8_probe,
+	.remove		= timer8_remove,
+	.driver		= {
+		.name	= "h8300-8timer",
+	}
+};
+
+static int __init timer8_init(void)
+{
+	return platform_driver_register(&timer8_driver);
+}
+
+static void __exit timer8_exit(void)
+{
+	platform_driver_unregister(&timer8_driver);
+}
+
+early_platform_init("earlytimer", &timer8_driver);
+subsys_initcall(timer8_init);
+module_exit(timer8_exit);
+MODULE_AUTHOR("Yoshinori Sato");
+MODULE_DESCRIPTION("H8/300 8bit Timer Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/clocksource/h8300_tpu.c b/drivers/clocksource/h8300_tpu.c
new file mode 100644
index 0000000..1aae8a7
--- /dev/null
+++ b/drivers/clocksource/h8300_tpu.c
@@ -0,0 +1,203 @@
+/*
+ *  linux/arch/h8300/kernel/cpu/timer/timer_tpu.c
+ *
+ *  Yoshinori Sato <ysato@users.sourcefoge.jp>
+ *
+ *  TPU driver
+ *
+ */
+
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/clocksource.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <asm/irq.h>
+#include <asm/timer.h>
+
+#define TCR	0
+#define TMDR	1
+#define TIOR	2
+#define TER	4
+#define TSR	5
+#define TCNT	6
+#define TGRA	8
+#define TGRB	10
+#define TGRC	12
+#define TGRD	14
+
+struct tpu_priv {
+	struct platform_device *pdev;
+	struct clocksource cs;
+	struct clk *clk;
+	unsigned long mapbase1;
+	unsigned long mapbase2;
+	raw_spinlock_t lock;
+	unsigned int cs_enabled;
+};
+
+static inline unsigned long read_tcnt32(struct tpu_priv *p)
+{
+	unsigned long tcnt;
+
+	tcnt = ctrl_inw(p->mapbase1 + TCNT) << 16;
+	tcnt |= ctrl_inw(p->mapbase2 + TCNT);
+	return tcnt;
+}
+
+static int tpu_get_counter(struct tpu_priv *p, unsigned long long *val)
+{
+	unsigned long v1, v2, v3;
+	int o1, o2;
+
+	o1 = ctrl_inb(p->mapbase1 + TSR) & 0x10;
+
+	/* Make sure the timer value is stable. Stolen from acpi_pm.c */
+	do {
+		o2 = o1;
+		v1 = read_tcnt32(p);
+		v2 = read_tcnt32(p);
+		v3 = read_tcnt32(p);
+		o1 = ctrl_inb(p->mapbase1 + TSR) & 0x10;
+	} while (unlikely((o1 != o2) || (v1 > v2 && v1 < v3)
+			  || (v2 > v3 && v2 < v1) || (v3 > v1 && v3 < v2)));
+
+	*val = v2;
+	return o1;
+}
+
+static inline struct tpu_priv *cs_to_priv(struct clocksource *cs)
+{
+	return container_of(cs, struct tpu_priv, cs);
+}
+
+static cycle_t tpu_clocksource_read(struct clocksource *cs)
+{
+	struct tpu_priv *p = cs_to_priv(cs);
+	unsigned long flags;
+	unsigned long long value;
+
+	raw_spin_lock_irqsave(&p->lock, flags);
+	if (tpu_get_counter(p, &value))
+		value += 0x100000000;
+	raw_spin_unlock_irqrestore(&p->lock, flags);
+
+	return value;
+}
+
+static int tpu_clocksource_enable(struct clocksource *cs)
+{
+	struct tpu_priv *p = cs_to_priv(cs);
+
+	WARN_ON(p->cs_enabled);
+
+	ctrl_outw(0, p->mapbase1 + TCNT);
+	ctrl_outw(0, p->mapbase2 + TCNT);
+	ctrl_outb(0x0f, p->mapbase1 + TCR);
+	ctrl_outb(0x03, p->mapbase2 + TCR);
+
+	p->cs_enabled = true;
+	return 0;
+}
+
+static void tpu_clocksource_disable(struct clocksource *cs)
+{
+	struct tpu_priv *p = cs_to_priv(cs);
+
+	WARN_ON(!p->cs_enabled);
+
+	ctrl_outb(0, p->mapbase1 + TCR);
+	ctrl_outb(0, p->mapbase2 + TCR);
+	p->cs_enabled = false;
+}
+
+#define CH_L 0
+#define CH_H 1
+
+static int __init tpu_setup(struct tpu_priv *p, struct platform_device *pdev)
+{
+	struct resource *res[2];
+
+	memset(p, 0, sizeof(*p));
+	p->pdev = pdev;
+
+	res[CH_L] = platform_get_resource(p->pdev, IORESOURCE_MEM, CH_L);
+	res[CH_H] = platform_get_resource(p->pdev, IORESOURCE_MEM, CH_H);
+	if (!res[CH_L] || !res[CH_H]) {
+		dev_err(&p->pdev->dev, "failed to get I/O memory\n");
+		return -ENXIO;
+	}
+
+	p->clk = clk_get(&p->pdev->dev, "peripheral_clk");
+	if (IS_ERR(p->clk)) {
+		dev_err(&p->pdev->dev, "can't get clk\n");
+		return PTR_ERR(p->clk);
+	}
+
+	p->mapbase1 = res[CH_L]->start;
+	p->mapbase2 = res[CH_H]->start;
+
+	p->cs.name = pdev->name;
+	p->cs.rating = 200;
+	p->cs.read = tpu_clocksource_read;
+	p->cs.enable = tpu_clocksource_enable;
+	p->cs.disable = tpu_clocksource_disable;
+	p->cs.mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8);
+	p->cs.flags = CLOCK_SOURCE_IS_CONTINUOUS;
+	clocksource_register_hz(&p->cs, clk_get_rate(p->clk) / 64);
+	platform_set_drvdata(pdev, p);
+
+	return 0;
+}
+
+static int tpu_probe(struct platform_device *pdev)
+{
+	struct tpu_priv *p = platform_get_drvdata(pdev);
+
+	if (p) {
+		dev_info(&pdev->dev, "kept as earlytimer\n");
+		return 0;
+	}
+
+	p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL);
+	if (!p)
+		return -ENOMEM;
+
+	return tpu_setup(p, pdev);
+}
+
+static int tpu_remove(struct platform_device *pdev)
+{
+	return -EBUSY;
+}
+
+static struct platform_driver tpu_driver = {
+	.probe		= tpu_probe,
+	.remove		= tpu_remove,
+	.driver		= {
+		.name	= "h8s-tpu",
+	}
+};
+
+static int __init tpu_init(void)
+{
+	return platform_driver_register(&tpu_driver);
+}
+
+static void __exit tpu_exit(void)
+{
+	platform_driver_unregister(&tpu_driver);
+}
+
+subsys_initcall(tpu_init);
+module_exit(tpu_exit);
+MODULE_AUTHOR("Yoshinori Sato");
+MODULE_DESCRIPTION("H8S Timer Pulse Unit Driver");
+MODULE_LICENSE("GPL v2");
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 13/16] h8300: configs
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
                   ` (11 preceding siblings ...)
  2015-03-09  8:47 ` [PATCH v6 12/16] h8300: clocksource Yoshinori Sato
@ 2015-03-09  8:47 ` Yoshinori Sato
  2015-03-09  8:47 ` [PATCH v6 14/16] serial: Add h8300 Yoshinori Sato
                   ` (3 subsequent siblings)
  16 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:47 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 arch/h8300/configs/h8300h-sim_defconfig | 53 +++++++++++++++++++++++++++++++++
 arch/h8300/configs/h8s-sim_defconfig    | 53 +++++++++++++++++++++++++++++++++
 2 files changed, 106 insertions(+)
 create mode 100644 arch/h8300/configs/h8300h-sim_defconfig
 create mode 100644 arch/h8300/configs/h8s-sim_defconfig

diff --git a/arch/h8300/configs/h8300h-sim_defconfig b/arch/h8300/configs/h8300h-sim_defconfig
new file mode 100644
index 0000000..bad1a1e
--- /dev/null
+++ b/arch/h8300/configs/h8300h-sim_defconfig
@@ -0,0 +1,53 @@
+# CONFIG_LOCALVERSION_AUTO is not set
+# CONFIG_USELIB is not set
+# CONFIG_INIT_FALLBACK is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+# CONFIG_UID16 is not set
+# CONFIG_SYSFS_SYSCALL is not set
+# CONFIG_KALLSYMS is not set
+# CONFIG_BASE_FULL is not set
+# CONFIG_FUTEX is not set
+# CONFIG_EPOLL is not set
+# CONFIG_SIGNALFD is not set
+# CONFIG_TIMERFD is not set
+# CONFIG_EVENTFD is not set
+# CONFIG_AIO is not set
+# CONFIG_ADVISE_SYSCALLS is not set
+CONFIG_EMBEDDED=y
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_COMPAT_BRK is not set
+CONFIG_SLOB=y
+# CONFIG_BLOCK is not set
+CONFIG_H8300H_SIM=y
+CONFIG_CPU_CLOCK=20000000
+CONFIG_RAMSIZE=0x200000
+# CONFIG_BINFMT_SCRIPT is not set
+CONFIG_BINFMT_FLAT=y
+# CONFIG_COREDUMP is not set
+# CONFIG_UEVENT_HELPER is not set
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_FW_LOADER is not set
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_UNIX98_PTYS is not set
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_DEVKMEM is not set
+CONFIG_SERIAL_SH_SCI=y
+CONFIG_SERIAL_SH_SCI_CONSOLE=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_IOMMU_SUPPORT is not set
+# CONFIG_FILE_LOCKING is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_INOTIFY_USER is not set
+# CONFIG_PROC_FS is not set
+# CONFIG_SYSFS is not set
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_DEBUG_INFO=y
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_CRC32 is not set
diff --git a/arch/h8300/configs/h8s-sim_defconfig b/arch/h8300/configs/h8s-sim_defconfig
new file mode 100644
index 0000000..025cdd8
--- /dev/null
+++ b/arch/h8300/configs/h8s-sim_defconfig
@@ -0,0 +1,53 @@
+# CONFIG_LOCALVERSION_AUTO is not set
+# CONFIG_USELIB is not set
+# CONFIG_INIT_FALLBACK is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+# CONFIG_UID16 is not set
+# CONFIG_SYSFS_SYSCALL is not set
+# CONFIG_KALLSYMS is not set
+# CONFIG_BASE_FULL is not set
+# CONFIG_FUTEX is not set
+# CONFIG_EPOLL is not set
+# CONFIG_SIGNALFD is not set
+# CONFIG_TIMERFD is not set
+# CONFIG_EVENTFD is not set
+# CONFIG_AIO is not set
+# CONFIG_ADVISE_SYSCALLS is not set
+CONFIG_EMBEDDED=y
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_COMPAT_BRK is not set
+CONFIG_SLOB=y
+# CONFIG_BLOCK is not set
+CONFIG_H8S_SIM=y
+CONFIG_CPU_CLOCK=33333333
+CONFIG_RAMSIZE=0x200000
+# CONFIG_BINFMT_SCRIPT is not set
+CONFIG_BINFMT_FLAT=y
+# CONFIG_COREDUMP is not set
+# CONFIG_UEVENT_HELPER is not set
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_FW_LOADER is not set
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_UNIX98_PTYS is not set
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_DEVKMEM is not set
+CONFIG_SERIAL_SH_SCI=y
+CONFIG_SERIAL_SH_SCI_CONSOLE=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_IOMMU_SUPPORT is not set
+# CONFIG_FILE_LOCKING is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_INOTIFY_USER is not set
+# CONFIG_PROC_FS is not set
+# CONFIG_SYSFS is not set
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_DEBUG_INFO=y
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_CRC32 is not set
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 14/16] serial: Add h8300
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
                   ` (12 preceding siblings ...)
  2015-03-09  8:47 ` [PATCH v6 13/16] h8300: configs Yoshinori Sato
@ 2015-03-09  8:47 ` Yoshinori Sato
  2015-03-09  8:47 ` [PATCH v6 15/16] Add ELF machine Yoshinori Sato
                   ` (2 subsequent siblings)
  16 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:47 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 drivers/tty/serial/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index d2501f0..db93a85 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -738,7 +738,7 @@ config SERIAL_IP22_ZILOG_CONSOLE
 
 config SERIAL_SH_SCI
 	tristate "SuperH SCI(F) serial port support"
-	depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST
+	depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST || H8300
 	select SERIAL_CORE
 
 config SERIAL_SH_SCI_NR_UARTS
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 15/16] Add ELF machine
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
                   ` (13 preceding siblings ...)
  2015-03-09  8:47 ` [PATCH v6 14/16] serial: Add h8300 Yoshinori Sato
@ 2015-03-09  8:47 ` Yoshinori Sato
  2015-03-09  9:10   ` Jeff Kirsher
  2015-03-09  8:47 ` [PATCH v6 16/16] mksysmap: Add h8300 local symbol pattern Yoshinori Sato
  2015-03-10  5:55 ` [PATCH v6 00/16] Revert h8300 archtecture support Guenter Roeck
  16 siblings, 1 reply; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:47 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 include/uapi/linux/elf-em.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/elf-em.h b/include/uapi/linux/elf-em.h
index ae99f77..b088296 100644
--- a/include/uapi/linux/elf-em.h
+++ b/include/uapi/linux/elf-em.h
@@ -25,6 +25,7 @@
 #define EM_ARM		40	/* ARM 32 bit */
 #define EM_SH		42	/* SuperH */
 #define EM_SPARCV9	43	/* SPARC v9 64-bit */
+#define EM_H8_300	46	/* Renesas H8/300 */
 #define EM_IA_64	50	/* HP/Intel IA-64 */
 #define EM_X86_64	62	/* AMD x86-64 */
 #define EM_S390		22	/* IBM S/390 */
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* [PATCH v6 16/16] mksysmap: Add h8300 local symbol pattern
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
                   ` (14 preceding siblings ...)
  2015-03-09  8:47 ` [PATCH v6 15/16] Add ELF machine Yoshinori Sato
@ 2015-03-09  8:47 ` Yoshinori Sato
  2015-03-10  5:55 ` [PATCH v6 00/16] Revert h8300 archtecture support Guenter Roeck
  16 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-09  8:47 UTC (permalink / raw)
  To: linux-kernel, linux-arch; +Cc: Yoshinori Sato

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
---
 scripts/mksysmap | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/mksysmap b/scripts/mksysmap
index 7ada35a..a35acc0 100755
--- a/scripts/mksysmap
+++ b/scripts/mksysmap
@@ -41,4 +41,4 @@
 # so we just ignore them to let readprofile continue to work.
 # (At least sparc64 has __crc_ in the middle).
 
-$NM -n $1 | grep -v '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)' > $2
+$NM -n $1 | grep -v '\( [aNUw] \)\|\(__crc_\)\|\( \$[adt]\)\|\( .L\)' > $2
-- 
2.1.4


^ permalink raw reply	[flat|nested] 25+ messages in thread

* Re: [PATCH v6 15/16] Add ELF machine
  2015-03-09  8:47 ` [PATCH v6 15/16] Add ELF machine Yoshinori Sato
@ 2015-03-09  9:10   ` Jeff Kirsher
  2015-03-10  7:43     ` Yoshinori Sato
  0 siblings, 1 reply; 25+ messages in thread
From: Jeff Kirsher @ 2015-03-09  9:10 UTC (permalink / raw)
  To: Yoshinori Sato, linux-kernel, linux-arch

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

On 03/09/2015 01:47 AM, Yoshinori Sato wrote:
> Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> --- 
> include/uapi/linux/elf-em.h | 1 + 1 file changed, 1 insertion(+)

Where is the patch description for this change?  Do you just expect
everyone to know why you made the change?

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^ permalink raw reply	[flat|nested] 25+ messages in thread

* Re: [PATCH v6 11/16] h8300: clock driver
  2015-03-09  8:47 ` [PATCH v6 11/16] h8300: clock driver Yoshinori Sato
@ 2015-03-09  9:13   ` Jeff Kirsher
  2015-03-10  7:46     ` Yoshinori Sato
  0 siblings, 1 reply; 25+ messages in thread
From: Jeff Kirsher @ 2015-03-09  9:13 UTC (permalink / raw)
  To: Yoshinori Sato, linux-kernel, linux-arch

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

On 03/09/2015 01:47 AM, Yoshinori Sato wrote:
> Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> --- 
> drivers/clk/Makefile            |   1 + drivers/clk/h8300/Makefile
> |   2 + drivers/clk/h8300/clk-h83069.c  |  80 +++++++++++++++++++ 
> drivers/clk/h8300/clk-h8s2678.c | 171
> ++++++++++++++++++++++++++++++++++++++++ 
> include/linux/clk-provider.h    |  12 +++ 5 files changed, 266
> insertions(+) create mode 100644 drivers/clk/h8300/Makefile create
> mode 100644 drivers/clk/h8300/clk-h83069.c create mode 100644
> drivers/clk/h8300/clk-h8s2678.c

A lot of changes and no patch description?  A patch description needs
to explain "why" the change.

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^ permalink raw reply	[flat|nested] 25+ messages in thread

* Re: [PATCH v6 06/16] h8300: CPU depend helpers
  2015-03-09  8:47 ` [PATCH v6 06/16] h8300: CPU depend helpers Yoshinori Sato
@ 2015-03-09 16:21   ` Joe Perches
  2015-03-09 17:55     ` Geert Uytterhoeven
  0 siblings, 1 reply; 25+ messages in thread
From: Joe Perches @ 2015-03-09 16:21 UTC (permalink / raw)
  To: Yoshinori Sato; +Cc: linux-kernel, linux-arch

On Mon, 2015-03-09 at 17:47 +0900, Yoshinori Sato wrote:
> Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>

trivia:

>  arch/h8300/kernel/cpu/h83069/setup.c   | 202 ++++++++++++++++++++++++++
[]
> diff --git a/arch/h8300/kernel/cpu/h83069/setup.c b/arch/h8300/kernel/cpu/h83069/setup.c
[]
> +static struct resource sci0_resources[] = {
> +	DEFINE_RES_MEM(0xffffb0, 8),
> +	DEFINE_RES_IRQ(52),
> +	DEFINE_RES_IRQ(53),
> +	DEFINE_RES_IRQ(54),
> +	DEFINE_RES_IRQ(55),
> +}

Perhaps most all of these might be const?

> +static struct plat_sci_port sci0_platform_data = {
[]
> +static struct resource sci1_resources[] = {
[]
> +static struct plat_sci_port sci1_platform_data = {
[]
> +static struct platform_device sci0_device = {
[]
> +static struct platform_device sci1_device = {
[]
> +static struct h8300_timer8_config tm8_unit0_platform_data = {
[]
> +static struct resource tm8_unit0_resources[] = {
[]
> +static struct platform_device timer8_unit0_device = {
[]
> +static struct h8300_timer8_config tm8_unit1_platform_data = {
[]

etc..



^ permalink raw reply	[flat|nested] 25+ messages in thread

* Re: [PATCH v6 06/16] h8300: CPU depend helpers
  2015-03-09 16:21   ` Joe Perches
@ 2015-03-09 17:55     ` Geert Uytterhoeven
  0 siblings, 0 replies; 25+ messages in thread
From: Geert Uytterhoeven @ 2015-03-09 17:55 UTC (permalink / raw)
  To: Joe Perches; +Cc: Yoshinori Sato, linux-kernel, Linux-Arch

On Mon, Mar 9, 2015 at 5:21 PM, Joe Perches <joe@perches.com> wrote:
>>  arch/h8300/kernel/cpu/h83069/setup.c   | 202 ++++++++++++++++++++++++++
> []
>> diff --git a/arch/h8300/kernel/cpu/h83069/setup.c b/arch/h8300/kernel/cpu/h83069/setup.c
> []
>> +static struct resource sci0_resources[] = {
>> +     DEFINE_RES_MEM(0xffffb0, 8),
>> +     DEFINE_RES_IRQ(52),
>> +     DEFINE_RES_IRQ(53),
>> +     DEFINE_RES_IRQ(54),
>> +     DEFINE_RES_IRQ(55),
>> +}
>
> Perhaps most all of these might be const?
>
>> +static struct plat_sci_port sci0_platform_data = {
> []
>> +static struct resource sci1_resources[] = {
> []
>> +static struct plat_sci_port sci1_platform_data = {
> []
>> +static struct platform_device sci0_device = {
> []
>> +static struct platform_device sci1_device = {
> []
>> +static struct h8300_timer8_config tm8_unit0_platform_data = {
> []
>> +static struct resource tm8_unit0_resources[] = {
> []
>> +static struct platform_device timer8_unit0_device = {
> []
>> +static struct h8300_timer8_config tm8_unit1_platform_data = {
> []

Unfortunately not. device.platform_data and platform_device.resource are
not const pointers.

They can only be const (and __initdata) when the platform devices are
created using platform_device_register_resndata(), as that one copies the
data.

May still be a good idea to use that instead of static platform devices, though,
especially for multi-platform kernels (because the __initdata data is reclaimed
later).

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

^ permalink raw reply	[flat|nested] 25+ messages in thread

* Re: [PATCH v6 00/16] Revert h8300 archtecture support
  2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
                   ` (15 preceding siblings ...)
  2015-03-09  8:47 ` [PATCH v6 16/16] mksysmap: Add h8300 local symbol pattern Yoshinori Sato
@ 2015-03-10  5:55 ` Guenter Roeck
  2015-03-10  8:09   ` Yoshinori Sato
  16 siblings, 1 reply; 25+ messages in thread
From: Guenter Roeck @ 2015-03-10  5:55 UTC (permalink / raw)
  To: Yoshinori Sato; +Cc: linux-kernel, linux-arch

On Mon, Mar 09, 2015 at 05:46:54PM +0900, Yoshinori Sato wrote:
> Hello.
> 
> I rewriting h8300 support.
> 

It might possibly be better to use the term "re-introduce" instead of
rewrite or revert (as in the headline).

Also,
	s/archtecture/architecture/

in the headline.

Given that the reason for dropping the architecture in the first place was
the lack of an active maintainer, I am somewhat surprised that you don't
add one to the MAINTAINERS file.

Guenter

^ permalink raw reply	[flat|nested] 25+ messages in thread

* Re: [PATCH v6 15/16] Add ELF machine
  2015-03-09  9:10   ` Jeff Kirsher
@ 2015-03-10  7:43     ` Yoshinori Sato
  0 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-10  7:43 UTC (permalink / raw)
  To: jeffrey.t.kirsher; +Cc: linux-kernel, linux-arch

At Mon, 09 Mar 2015 02:10:57 -0700,
Jeff Kirsher wrote:
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
> 
> On 03/09/2015 01:47 AM, Yoshinori Sato wrote:
> > Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> --- 
> > include/uapi/linux/elf-em.h | 1 + 1 file changed, 1 insertion(+)
> 
> Where is the patch description for this change?  Do you just expect
> everyone to know why you made the change?

Sorry. I forgat it.

This changes added H8/300 ELF machine.

> 
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-- 
Yoshinori Sato
<ysato@users.sourceforge.jp>

^ permalink raw reply	[flat|nested] 25+ messages in thread

* Re: [PATCH v6 11/16] h8300: clock driver
  2015-03-09  9:13   ` Jeff Kirsher
@ 2015-03-10  7:46     ` Yoshinori Sato
  0 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-10  7:46 UTC (permalink / raw)
  To: jeffrey.t.kirsher; +Cc: linux-kernel, linux-arch

At Mon, 09 Mar 2015 02:13:31 -0700,
Jeff Kirsher wrote:
> 
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA512
> 
> On 03/09/2015 01:47 AM, Yoshinori Sato wrote:
> > Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> --- 
> > drivers/clk/Makefile            |   1 + drivers/clk/h8300/Makefile
> > |   2 + drivers/clk/h8300/clk-h83069.c  |  80 +++++++++++++++++++ 
> > drivers/clk/h8300/clk-h8s2678.c | 171
> > ++++++++++++++++++++++++++++++++++++++++ 
> > include/linux/clk-provider.h    |  12 +++ 5 files changed, 266
> > insertions(+) create mode 100644 drivers/clk/h8300/Makefile create
> > mode 100644 drivers/clk/h8300/clk-h83069.c create mode 100644
> > drivers/clk/h8300/clk-h8s2678.c
> 
> A lot of changes and no patch description?  A patch description needs
> to explain "why" the change.

OK.
I give the description and resend.

> 
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-- 
Yoshinori Sato
<ysato@users.sourceforge.jp>

^ permalink raw reply	[flat|nested] 25+ messages in thread

* Re: [PATCH v6 00/16] Revert h8300 archtecture support
  2015-03-10  5:55 ` [PATCH v6 00/16] Revert h8300 archtecture support Guenter Roeck
@ 2015-03-10  8:09   ` Yoshinori Sato
  0 siblings, 0 replies; 25+ messages in thread
From: Yoshinori Sato @ 2015-03-10  8:09 UTC (permalink / raw)
  To: Guenter Roeck; +Cc: linux-kernel, linux-arch

At Mon, 9 Mar 2015 22:55:22 -0700,
Guenter Roeck wrote:

Thanks comment.

> 
> On Mon, Mar 09, 2015 at 05:46:54PM +0900, Yoshinori Sato wrote:
> > Hello.
> > 
> > I rewriting h8300 support.
> > 
> It might possibly be better to use the term "re-introduce" instead of
> rewrite or revert (as in the headline).
> 
> Also,
> 	s/archtecture/architecture/
> 
> in the headline.

OK.
It's corrected next.

> Given that the reason for dropping the architecture in the first place was
> the lack of an active maintainer, I am somewhat surprised that you don't
> add one to the MAINTAINERS file.

Oh.
I add next.

> Guenter

-- 
Yoshinori Sato
<ysato@users.sourceforge.jp>

^ permalink raw reply	[flat|nested] 25+ messages in thread

end of thread, other threads:[~2015-03-10  8:09 UTC | newest]

Thread overview: 25+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-03-09  8:46 [PATCH v6 00/16] Revert h8300 archtecture support Yoshinori Sato
2015-03-09  8:46 ` [PATCH v6 01/16] h8300: Assembly headers Yoshinori Sato
2015-03-09  8:46 ` [PATCH v6 02/16] h8300: UAPI headers Yoshinori Sato
2015-03-09  8:46 ` [PATCH v6 03/16] h8300: Exception and Interrupt handling Yoshinori Sato
2015-03-09  8:46 ` [PATCH v6 04/16] h8300: kernel booting Yoshinori Sato
2015-03-09  8:46 ` [PATCH v6 05/16] h8300: Process and signal Yoshinori Sato
2015-03-09  8:47 ` [PATCH v6 06/16] h8300: CPU depend helpers Yoshinori Sato
2015-03-09 16:21   ` Joe Perches
2015-03-09 17:55     ` Geert Uytterhoeven
2015-03-09  8:47 ` [PATCH v6 07/16] h8300: miscellaneous functions Yoshinori Sato
2015-03-09  8:47 ` [PATCH v6 08/16] h8300: Memory management Yoshinori Sato
2015-03-09  8:47 ` [PATCH v6 09/16] h8300: library functions Yoshinori Sato
2015-03-09  8:47 ` [PATCH v6 10/16] h8300: Build scripts Yoshinori Sato
2015-03-09  8:47 ` [PATCH v6 11/16] h8300: clock driver Yoshinori Sato
2015-03-09  9:13   ` Jeff Kirsher
2015-03-10  7:46     ` Yoshinori Sato
2015-03-09  8:47 ` [PATCH v6 12/16] h8300: clocksource Yoshinori Sato
2015-03-09  8:47 ` [PATCH v6 13/16] h8300: configs Yoshinori Sato
2015-03-09  8:47 ` [PATCH v6 14/16] serial: Add h8300 Yoshinori Sato
2015-03-09  8:47 ` [PATCH v6 15/16] Add ELF machine Yoshinori Sato
2015-03-09  9:10   ` Jeff Kirsher
2015-03-10  7:43     ` Yoshinori Sato
2015-03-09  8:47 ` [PATCH v6 16/16] mksysmap: Add h8300 local symbol pattern Yoshinori Sato
2015-03-10  5:55 ` [PATCH v6 00/16] Revert h8300 archtecture support Guenter Roeck
2015-03-10  8:09   ` Yoshinori Sato

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