[PATCH 1/3] x86: fix percpu, nodeids, apicids in x86.git
From: travis
Date: Tue Jan 22 2008 - 18:05:00 EST
[ patches for x86.git ]
01-fix-x86.git-need
- fixes up things missing in (08/01/22) x86.git [necessary]
This should bring x86.git up-to-date with changes from -mm specific to x86
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Eric Dumazet <dada1@xxxxxxxxxxxxx>
Cc: Yinghai Lu <yhlu.kernel@xxxxxxxxx>
Signed-off-by: Mike Travis <travis@xxxxxxx>
---
arch/x86/Kconfig | 2 +-
arch/x86/kernel/setup64.c | 10 +++++-----
arch/x86/kernel/smpboot_32.c | 2 +-
arch/x86/mm/numa_64.c | 14 ++++++--------
arch/x86/mm/srat_64.c | 2 +-
include/asm-generic/percpu.h | 12 ++----------
include/asm-x86/mmzone_64.h | 6 +++---
include/asm-x86/numa_64.h | 2 +-
include/asm-x86/topology.h | 16 +++++++++-------
init/main.c | 4 ++--
kernel/module.c | 8 ++++++++
11 files changed, 39 insertions(+), 39 deletions(-)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -100,7 +100,7 @@ config GENERIC_TIME_VSYSCALL
bool
default X86_64
-config ARCH_SETS_UP_PER_CPU_AREA
+config HAVE_SETUP_PER_CPU_AREA
def_bool X86_64
config ARCH_SUPPORTS_OPROFILE
--- a/arch/x86/kernel/setup64.c
+++ b/arch/x86/kernel/setup64.c
@@ -87,10 +87,10 @@ __setup("noexec32=", nonx32_setup);
/*
* Copy data used in early init routines from the initial arrays to the
- * per cpu data areas. These arrays then become expendable and the *_ptrs
- * are zeroed indicating that the static arrays are gone.
+ * per cpu data areas. These arrays then become expendable and the
+ * *_early_ptr's are zeroed indicating that the static arrays are gone.
*/
-void __init setup_percpu_maps(void)
+static void __init setup_per_cpu_maps(void)
{
int cpu;
@@ -114,7 +114,7 @@ void __init setup_percpu_maps(void)
#endif
}
- /* indicate the early static arrays are gone */
+ /* indicate the early static arrays will soon be gone */
x86_cpu_to_apicid_early_ptr = NULL;
x86_bios_cpu_apicid_early_ptr = NULL;
#ifdef CONFIG_NUMA
@@ -157,7 +157,7 @@ void __init setup_per_cpu_areas(void)
}
/* setup percpu data maps early */
- setup_percpu_maps();
+ setup_per_cpu_maps();
}
void pda_init(int cpu)
--- a/arch/x86/kernel/smpboot_32.c
+++ b/arch/x86/kernel/smpboot_32.c
@@ -460,7 +460,7 @@ cpumask_t node_to_cpumask_map[MAX_NUMNOD
{ [0 ... MAX_NUMNODES-1] = CPU_MASK_NONE };
EXPORT_SYMBOL(node_to_cpumask_map);
/* which node each logical CPU is on */
-u8 cpu_to_node_map[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = 0 };
+int cpu_to_node_map[NR_CPUS] __read_mostly = { [0 ... NR_CPUS-1] = 0 };
EXPORT_SYMBOL(cpu_to_node_map);
/* set up a mapping between cpu and node. */
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -31,17 +31,15 @@ bootmem_data_t plat_node_bdata[MAX_NUMNO
struct memnode memnode;
-u16 x86_cpu_to_node_map_init[NR_CPUS] = {
+int x86_cpu_to_node_map_init[NR_CPUS] = {
[0 ... NR_CPUS-1] = NUMA_NO_NODE
};
void *x86_cpu_to_node_map_early_ptr;
-DEFINE_PER_CPU(u16, x86_cpu_to_node_map) = NUMA_NO_NODE;
+DEFINE_PER_CPU(int, x86_cpu_to_node_map) = NUMA_NO_NODE;
EXPORT_PER_CPU_SYMBOL(x86_cpu_to_node_map);
-#ifdef CONFIG_DEBUG_PER_CPU_MAPS
EXPORT_SYMBOL(x86_cpu_to_node_map_early_ptr);
-#endif
-u16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
+s16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
};
@@ -65,7 +63,7 @@ static int __init populate_memnodemap(co
unsigned long addr, end;
int i, res = -1;
- memset(memnodemap, 0xff, memnodemapsize);
+ memset(memnodemap, 0xff, sizeof(s16)*memnodemapsize);
for (i = 0; i < numnodes; i++) {
addr = nodes[i].start;
end = nodes[i].end;
@@ -74,7 +72,7 @@ static int __init populate_memnodemap(co
if ((end >> shift) >= memnodemapsize)
return 0;
do {
- if (memnodemap[addr >> shift] != 0xff)
+ if (memnodemap[addr >> shift] != NUMA_NO_NODE)
return -1;
memnodemap[addr >> shift] = i;
addr += (1UL << shift);
@@ -535,7 +533,7 @@ __cpuinit void numa_add_cpu(int cpu)
void __cpuinit numa_set_node(int cpu, int node)
{
- u16 *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
+ int *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
cpu_pda(cpu)->nodenumber = node;
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -397,7 +397,7 @@ int __init acpi_scan_nodes(unsigned long
static int fake_node_to_pxm_map[MAX_NUMNODES] __initdata = {
[0 ... MAX_NUMNODES-1] = PXM_INVAL
};
-static u16 fake_apicid_to_node[MAX_LOCAL_APIC] __initdata = {
+static s16 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-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -47,7 +47,7 @@ extern unsigned long __per_cpu_offset[NR
#endif
/*
- * A percpu variable may point to a discarded reghions. The following are
+ * A percpu variable may point to a discarded regions. The following are
* established ways to produce a usable pointer from the percpu variable
* offset.
*/
@@ -59,18 +59,10 @@ extern unsigned long __per_cpu_offset[NR
(*SHIFT_PERCPU_PTR(&per_cpu_var(var), __my_cpu_offset))
-#ifdef CONFIG_ARCH_SETS_UP_PER_CPU_AREA
+#ifdef CONFIG_HAVE_SETUP_PER_CPU_AREA
extern void setup_per_cpu_areas(void);
#endif
-/* A macro to avoid #include hell... */
-#define percpu_modcopy(pcpudst, src, size) \
-do { \
- unsigned int __i; \
- for_each_possible_cpu(__i) \
- memcpy((pcpudst)+per_cpu_offset(__i), \
- (src), (size)); \
-} while (0)
#else /* ! SMP */
#define per_cpu(var, cpu) (*((void)(cpu), &per_cpu_var(var)))
--- a/include/asm-x86/mmzone_64.h
+++ b/include/asm-x86/mmzone_64.h
@@ -15,9 +15,9 @@
struct memnode {
int shift;
unsigned int mapsize;
- u8 *map;
- u8 embedded_map[64-16];
-} ____cacheline_aligned; /* total size = 64 bytes */
+ s16 *map;
+ s16 embedded_map[64-8];
+} ____cacheline_aligned; /* total size = 128 bytes */
extern struct memnode memnode;
#define memnode_shift memnode.shift
#define memnodemap memnode.map
--- 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 u16 apicid_to_node[MAX_LOCAL_APIC];
+extern s16 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);
--- a/include/asm-x86/topology.h
+++ b/include/asm-x86/topology.h
@@ -31,17 +31,19 @@
/* Mappings between logical cpu number and node number */
#ifdef CONFIG_X86_32
-extern u8 cpu_to_node_map[];
+extern int cpu_to_node_map[];
#else
-DECLARE_PER_CPU(u16, x86_cpu_to_node_map);
-extern u16 x86_cpu_to_node_map_init[];
+DECLARE_PER_CPU(int, x86_cpu_to_node_map);
+extern int x86_cpu_to_node_map_init[];
extern void *x86_cpu_to_node_map_early_ptr;
+/* Returns the number of the current Node. */
+#define numa_node_id() (early_cpu_to_node(raw_smp_processor_id()))
#endif
extern cpumask_t node_to_cpumask_map[];
-#define NUMA_NO_NODE ((u16)(~0))
+#define NUMA_NO_NODE (-1)
/* Returns the number of the node containing CPU 'cpu' */
#ifdef CONFIG_X86_32
@@ -54,11 +56,11 @@ static inline int cpu_to_node(int cpu)
#else /* CONFIG_X86_64 */
static inline int early_cpu_to_node(int cpu)
{
- u16 *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
+ int *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
if (cpu_to_node_map)
return cpu_to_node_map[cpu];
- else if(per_cpu_offset(cpu))
+ else if (per_cpu_offset(cpu))
return per_cpu(x86_cpu_to_node_map, cpu);
else
return NUMA_NO_NODE;
@@ -71,7 +73,7 @@ static inline int cpu_to_node(int cpu)
printk("KERN_NOTICE cpu_to_node(%d): usage too early!\n",
(int)cpu);
dump_stack();
- return ((u16 *)x86_cpu_to_node_map_early_ptr)[cpu];
+ return ((int *)x86_cpu_to_node_map_early_ptr)[cpu];
}
#endif
if (per_cpu_offset(cpu))
--- a/init/main.c
+++ b/init/main.c
@@ -363,7 +363,7 @@ static inline void smp_prepare_cpus(unsi
#else
-#ifndef CONFIG_ARCH_SETS_UP_PER_CPU_AREA
+#ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA
unsigned long __per_cpu_offset[NR_CPUS] __read_mostly;
EXPORT_SYMBOL(__per_cpu_offset);
@@ -384,7 +384,7 @@ static void __init setup_per_cpu_areas(v
ptr += size;
}
}
-#endif /* CONFIG_ARCH_SETS_UP_CPU_AREA */
+#endif /* CONFIG_HAVE_SETUP_PER_CPU_AREA */
/* Called by boot processor to activate the rest. */
static void __init smp_init(void)
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -427,6 +427,14 @@ static unsigned int find_pcpusec(Elf_Ehd
return find_sec(hdr, sechdrs, secstrings, ".data.percpu");
}
+static void percpu_modcopy(void *pcpudest, const void *from, unsigned long size)
+{
+ int cpu;
+
+ for_each_possible_cpu(cpu)
+ memcpy(pcpudest + per_cpu_offset(cpu), from, size);
+}
+
static int percpu_modinit(void)
{
pcpu_num_used = 2;
--
--
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