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From: Christoph Hellwig <hch@lst.de>
To: Andrew Morton <akpm@linux-foundation.org>,
	Arnd Bergmann <arnd@arndb.de>,
	Roman Zippel <zippel@linux-m68k.org>
Cc: Jessica Yu <jeyu@kernel.org>, Michal Simek <monstr@monstr.eu>,
	x86@kernel.org, linux-alpha@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-c6x-dev@linux-c6x.org, linux-hexagon@vger.kernel.org,
	linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	linux-mips@vger.kernel.org, openrisc@lists.librecores.org,
	linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org,
	linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
	linux-arch@vger.kernel.org, linux-mm@kvack.org,
	linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org,
	linux-fsdevel@vger.kernel.org,
	Geert Uytterhoeven <geert@linux-m68k.org>
Subject: [PATCH 24/29] m68k: implement flush_icache_user_range
Date: Fri, 15 May 2020 16:36:41 +0200	[thread overview]
Message-ID: <20200515143646.3857579-25-hch@lst.de> (raw)
In-Reply-To: <20200515143646.3857579-1-hch@lst.de>

Rename the current flush_icache_range to flush_icache_user_range as
per commit ae92ef8a4424 ("PATCH] flush icache in correct context") there
seems to be an assumption that it operates on user addresses.  Add a
flush_icache_range around it that for now is a no-op.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 arch/m68k/include/asm/cacheflush_mm.h | 2 ++
 arch/m68k/mm/cache.c                  | 7 ++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/m68k/include/asm/cacheflush_mm.h b/arch/m68k/include/asm/cacheflush_mm.h
index 95376bf84faa5..1ac55e7b47f01 100644
--- a/arch/m68k/include/asm/cacheflush_mm.h
+++ b/arch/m68k/include/asm/cacheflush_mm.h
@@ -257,6 +257,8 @@ static inline void __flush_page_to_ram(void *vaddr)
 extern void flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
 				    unsigned long addr, int len);
 extern void flush_icache_range(unsigned long address, unsigned long endaddr);
+extern void flush_icache_user_range(unsigned long address,
+		unsigned long endaddr);
 
 static inline void copy_to_user_page(struct vm_area_struct *vma,
 				     struct page *page, unsigned long vaddr,
diff --git a/arch/m68k/mm/cache.c b/arch/m68k/mm/cache.c
index 99057cd5ff7f1..7915be3a09712 100644
--- a/arch/m68k/mm/cache.c
+++ b/arch/m68k/mm/cache.c
@@ -73,7 +73,7 @@ static unsigned long virt_to_phys_slow(unsigned long vaddr)
 
 /* Push n pages at kernel virtual address and clear the icache */
 /* RZ: use cpush %bc instead of cpush %dc, cinv %ic */
-void flush_icache_range(unsigned long address, unsigned long endaddr)
+void flush_icache_user_range(unsigned long address, unsigned long endaddr)
 {
 	if (CPU_IS_COLDFIRE) {
 		unsigned long start, end;
@@ -104,6 +104,11 @@ void flush_icache_range(unsigned long address, unsigned long endaddr)
 			      : "di" (FLUSH_I));
 	}
 }
+
+void flush_icache_range(unsigned long address, unsigned long endaddr)
+{
+	flush_icache_user_range(address, endaddr);
+}
 EXPORT_SYMBOL(flush_icache_range);
 
 void flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
-- 
2.26.2


  parent reply	other threads:[~2020-05-15 14:39 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-15 14:36 sort out the flush_icache_range mess v2 Christoph Hellwig
2020-05-15 14:36 ` [PATCH 01/29] arm: fix the flush_icache_range arguments in set_fiq_handler Christoph Hellwig
2020-05-15 14:36 ` [PATCH 02/29] nds32: unexport flush_icache_page Christoph Hellwig
2020-05-15 14:36 ` [PATCH 03/29] powerpc: unexport flush_icache_user_range Christoph Hellwig
2020-05-15 14:36 ` [PATCH 04/29] unicore32: remove flush_cache_user_range Christoph Hellwig
2020-05-15 14:36 ` [PATCH 05/29] asm-generic: fix the inclusion guards for cacheflush.h Christoph Hellwig
2020-05-15 14:36 ` [PATCH 06/29] asm-generic: don't include <linux/mm.h> in cacheflush.h Christoph Hellwig
2020-05-27  4:34   ` [PATCH] media: omap3isp: Shuffle cacheflush.h and include mm.h Nathan Chancellor
2020-05-27  5:10     ` Christoph Hellwig
2020-05-27  7:02     ` Geert Uytterhoeven
2020-05-27  8:13       ` Nathan Chancellor
2020-05-27 13:45         ` Laurent Pinchart
2020-05-15 14:36 ` [PATCH 07/29] asm-generic: improve the flush_dcache_page stub Christoph Hellwig
2020-05-15 14:36 ` [PATCH 08/29] alpha: use asm-generic/cacheflush.h Christoph Hellwig
2020-05-15 14:36 ` [PATCH 09/29] arm64: " Christoph Hellwig
2020-05-22 15:54   ` Catalin Marinas
2020-05-15 14:36 ` [PATCH 10/29] c6x: " Christoph Hellwig
2020-05-18 18:20   ` Mark Salter
2020-05-15 14:36 ` [PATCH 11/29] hexagon: " Christoph Hellwig
2020-05-15 14:36 ` [PATCH 12/29] ia64: " Christoph Hellwig
2020-05-15 14:36 ` [PATCH 13/29] microblaze: " Christoph Hellwig
2020-05-15 14:36 ` [PATCH 14/29] m68knommu: " Christoph Hellwig
2020-05-15 14:36 ` [PATCH 15/29] openrisc: " Christoph Hellwig
2020-05-15 14:36 ` [PATCH 16/29] powerpc: " Christoph Hellwig
2020-05-15 14:36 ` [PATCH 17/29] riscv: " Christoph Hellwig
2020-05-15 14:36 ` [PATCH 18/29] arm,sparc,unicore32: remove flush_icache_user_range Christoph Hellwig
2020-05-15 14:36 ` [PATCH 19/29] mm: rename flush_icache_user_range to flush_icache_user_page Christoph Hellwig
2020-05-15 14:36 ` [PATCH 20/29] asm-generic: add a flush_icache_user_range stub Christoph Hellwig
2020-05-15 14:36 ` [PATCH 21/29] sh: implement flush_icache_user_range Christoph Hellwig
2020-05-15 14:36 ` [PATCH 22/29] xtensa: " Christoph Hellwig
2020-05-15 14:36 ` [PATCH 23/29] arm: rename flush_cache_user_range to flush_icache_user_range Christoph Hellwig
2020-05-15 14:36 ` Christoph Hellwig [this message]
2020-05-15 14:36 ` [PATCH 25/29] exec: only build read_code when needed Christoph Hellwig
2020-05-15 14:36 ` [PATCH 26/29] exec: use flush_icache_user_range in read_code Christoph Hellwig
2020-05-15 14:36 ` [PATCH 27/29] binfmt_flat: use flush_icache_user_range Christoph Hellwig
2020-05-15 14:36 ` [PATCH 28/29] nommu: use flush_icache_user_range in brk and mmap Christoph Hellwig
2020-05-15 14:36 ` [PATCH 29/29] module: move the set_fs hack for flush_icache_range to m68k Christoph Hellwig
2020-05-18 13:04   ` Jessica Yu

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