From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754474AbYAMShz (ORCPT ); Sun, 13 Jan 2008 13:37:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753778AbYAMSfJ (ORCPT ); Sun, 13 Jan 2008 13:35:09 -0500 Received: from relay1.sgi.com ([192.48.171.29]:50029 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753364AbYAMSe5 (ORCPT ); Sun, 13 Jan 2008 13:34:57 -0500 Message-Id: <20080113183454.288993000@sgi.com> References: <20080113183453.973425000@sgi.com> User-Agent: quilt/0.46-1 Date: Sun, 13 Jan 2008 10:34:55 -0800 From: travis@sgi.com To: Andrew Morton , Andi Kleen , mingo@elte.hu Cc: Christoph Lameter , Jack Steiner , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH 02/10] x86: Change size of node ids from u8 to u16 Content-Disposition: inline; filename=big_nodeids Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Change the size of node ids from 8 bits to 16 bits to accomodate more than 256 nodes. Signed-off-by: Mike Travis Reviewed-by: Christoph Lameter --- arch/x86/mm/numa_64.c | 9 ++++++--- arch/x86/mm/srat_64.c | 2 +- include/asm-x86/numa_64.h | 4 ++-- include/asm-x86/topology.h | 2 +- 4 files changed, 10 insertions(+), 7 deletions(-) --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include @@ -30,12 +31,12 @@ bootmem_data_t plat_node_bdata[MAX_NUMNO struct memnode memnode; -int cpu_to_node_map[NR_CPUS] __read_mostly = { +u16 cpu_to_node_map[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = NUMA_NO_NODE }; EXPORT_SYMBOL(cpu_to_node_map); -unsigned char apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = { +u16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = { [0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE }; @@ -544,7 +545,9 @@ void __init numa_initmem_init(unsigned l node_set(0, node_possible_map); for (i = 0; i < NR_CPUS; i++) numa_set_node(i, 0); - node_to_cpumask_map[0] = cpumask_of_cpu(0); + /* we can't use cpumask_of_cpu() yet */ + memset(&node_to_cpumask_map[0], 0, sizeof(node_to_cpumask_map[0])); + cpu_set(0, node_to_cpumask_map[0]); e820_register_active_regions(0, start_pfn, end_pfn); setup_node_bootmem(0, start_pfn << PAGE_SHIFT, end_pfn << PAGE_SHIFT); } --- a/arch/x86/mm/srat_64.c +++ b/arch/x86/mm/srat_64.c @@ -391,7 +391,7 @@ int __init acpi_scan_nodes(unsigned long static int fake_node_to_pxm_map[MAX_NUMNODES] __initdata = { [0 ... MAX_NUMNODES-1] = PXM_INVAL }; -static unsigned char fake_apicid_to_node[MAX_LOCAL_APIC] __initdata = { +static u16 fake_apicid_to_node[MAX_LOCAL_APIC] __initdata = { [0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE }; static int __init find_node_by_addr(unsigned long addr) --- a/include/asm-x86/numa_64.h +++ b/include/asm-x86/numa_64.h @@ -20,7 +20,7 @@ extern void numa_set_node(int cpu, int n extern void srat_reserve_add_area(int nodeid); extern int hotadd_percent; -extern unsigned char apicid_to_node[MAX_LOCAL_APIC]; +extern u16 apicid_to_node[MAX_LOCAL_APIC]; extern void numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn); extern unsigned long numa_free_all_bootmem(void); @@ -40,6 +40,6 @@ static inline void clear_node_cpumask(in #define clear_node_cpumask(cpu) do {} while (0) #endif -#define NUMA_NO_NODE 0xff +#define NUMA_NO_NODE 0xffff #endif --- a/include/asm-x86/topology.h +++ b/include/asm-x86/topology.h @@ -30,7 +30,7 @@ #include /* Mappings between logical cpu number and node number */ -extern int cpu_to_node_map[]; +extern u16 cpu_to_node_map[]; extern cpumask_t node_to_cpumask_map[]; /* Returns the number of the node containing CPU 'cpu' */ --