AuxXxilium/linux_dsm_epyc7002
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x86: change size of node ids from u8 to u16

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Change the size of node ids from 8 bits to 16 bits to
accomodate more than 256 nodes.

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
travis@sgi.com 2008-01-30 13:33:11 +01:00 committed by Ingo Molnar
parent ef97001f3d
commit 3cc87e3f40
4 changed files with 10 additions and 7 deletions
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9
arch/x86/mm/numa_64.c
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@ -11,6 +11,7 @@
#include <linux/ctype.h>
#include <linux/module.h>
#include <linux/nodemask.h>
#include <linux/sched.h>
#include <asm/e820.h>
#include <asm/proto.h>
@ -30,12 +31,12 @@ bootmem_data_t plat_node_bdata[MAX_NUMNODES];
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
};
@ -543,7 +544,9 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
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);
}

2
arch/x86/mm/srat_64.c
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@ -391,7 +391,7 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
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)

4
include/asm-x86/numa_64.h
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@ -20,7 +20,7 @@ extern void numa_set_node(int cpu, int node);
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(int cpu)
#define clear_node_cpumask(cpu) do {} while (0)
#endif
#define NUMA_NO_NODE 0xff
#define NUMA_NO_NODE 0xffff
#endif

2
include/asm-x86/topology.h
View File

@ -30,7 +30,7 @@
#include <asm/mpspec.h>
/* 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' */