aboutsummaryrefslogtreecommitdiff
path: root/arch/ia64
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-14 09:58:24 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-14 09:58:24 -0800
commitd0316554d3586cbea60592a41391b5def2553d6f (patch)
tree5e7418f0bacbc68cec5dfd1541e03eb56870aa02 /arch/ia64
parentfb0bbb92d42d5bd0ab224605444efdfed06d6934 (diff)
parent51e99be00ce2713cbb841cedc997cafa6e26c7f4 (diff)
downloadlinux-2.6.38-lt-ux500-d0316554d3586cbea60592a41391b5def2553d6f.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (34 commits) m68k: rename global variable vmalloc_end to m68k_vmalloc_end percpu: add missing per_cpu_ptr_to_phys() definition for UP percpu: Fix kdump failure if booted with percpu_alloc=page percpu: make misc percpu symbols unique percpu: make percpu symbols in ia64 unique percpu: make percpu symbols in powerpc unique percpu: make percpu symbols in x86 unique percpu: make percpu symbols in xen unique percpu: make percpu symbols in cpufreq unique percpu: make percpu symbols in oprofile unique percpu: make percpu symbols in tracer unique percpu: make percpu symbols under kernel/ and mm/ unique percpu: remove some sparse warnings percpu: make alloc_percpu() handle array types vmalloc: fix use of non-existent percpu variable in put_cpu_var() this_cpu: Use this_cpu_xx in trace_functions_graph.c this_cpu: Use this_cpu_xx for ftrace this_cpu: Use this_cpu_xx in nmi handling this_cpu: Use this_cpu operations in RCU this_cpu: Use this_cpu ops for VM statistics ... Fix up trivial (famous last words) global per-cpu naming conflicts in arch/x86/kvm/svm.c mm/slab.c
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/Kconfig3
-rw-r--r--arch/ia64/include/asm/meminit.h2
-rw-r--r--arch/ia64/include/asm/pgtable.h3
-rw-r--r--arch/ia64/include/asm/processor.h6
-rw-r--r--arch/ia64/kernel/acpi.c33
-rw-r--r--arch/ia64/kernel/head.S4
-rw-r--r--arch/ia64/kernel/ia64_ksyms.c2
-rw-r--r--arch/ia64/kernel/mca_asm.S2
-rw-r--r--arch/ia64/kernel/relocate_kernel.S2
-rw-r--r--arch/ia64/kernel/setup.c27
-rw-r--r--arch/ia64/kernel/vmlinux.lds.S11
-rw-r--r--arch/ia64/mm/contig.c99
-rw-r--r--arch/ia64/mm/discontig.c129
-rw-r--r--arch/ia64/mm/init.c4
-rw-r--r--arch/ia64/sn/kernel/sn2/sn2_smp.c8
-rw-r--r--arch/ia64/xen/irq_xen.c131
-rw-r--r--arch/ia64/xen/time.c22
17 files changed, 316 insertions, 172 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 1ee596cd942..2d7f56a98e0 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -87,9 +87,6 @@ config GENERIC_TIME_VSYSCALL
bool
default y
-config HAVE_LEGACY_PER_CPU_AREA
- def_bool y
-
config HAVE_SETUP_PER_CPU_AREA
def_bool y
diff --git a/arch/ia64/include/asm/meminit.h b/arch/ia64/include/asm/meminit.h
index 688a812c017..61c7b1750b1 100644
--- a/arch/ia64/include/asm/meminit.h
+++ b/arch/ia64/include/asm/meminit.h
@@ -61,7 +61,7 @@ extern int register_active_ranges(u64 start, u64 len, int nid);
#ifdef CONFIG_VIRTUAL_MEM_MAP
# define LARGE_GAP 0x40000000 /* Use virtual mem map if hole is > than this */
- extern unsigned long vmalloc_end;
+ extern unsigned long VMALLOC_END;
extern struct page *vmem_map;
extern int find_largest_hole(u64 start, u64 end, void *arg);
extern int create_mem_map_page_table(u64 start, u64 end, void *arg);
diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h
index 8840a690d1e..69bf13857a9 100644
--- a/arch/ia64/include/asm/pgtable.h
+++ b/arch/ia64/include/asm/pgtable.h
@@ -228,8 +228,7 @@ ia64_phys_addr_valid (unsigned long addr)
#define VMALLOC_START (RGN_BASE(RGN_GATE) + 0x200000000UL)
#ifdef CONFIG_VIRTUAL_MEM_MAP
# define VMALLOC_END_INIT (RGN_BASE(RGN_GATE) + (1UL << (4*PAGE_SHIFT - 9)))
-# define VMALLOC_END vmalloc_end
- extern unsigned long vmalloc_end;
+extern unsigned long VMALLOC_END;
#else
#if defined(CONFIG_SPARSEMEM) && defined(CONFIG_SPARSEMEM_VMEMMAP)
/* SPARSEMEM_VMEMMAP uses half of vmalloc... */
diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h
index 3eaeedf1aef..7fa90f73f6b 100644
--- a/arch/ia64/include/asm/processor.h
+++ b/arch/ia64/include/asm/processor.h
@@ -229,7 +229,7 @@ struct cpuinfo_ia64 {
#endif
};
-DECLARE_PER_CPU(struct cpuinfo_ia64, cpu_info);
+DECLARE_PER_CPU(struct cpuinfo_ia64, ia64_cpu_info);
/*
* The "local" data variable. It refers to the per-CPU data of the currently executing
@@ -237,8 +237,8 @@ DECLARE_PER_CPU(struct cpuinfo_ia64, cpu_info);
* Do not use the address of local_cpu_data, since it will be different from
* cpu_data(smp_processor_id())!
*/
-#define local_cpu_data (&__ia64_per_cpu_var(cpu_info))
-#define cpu_data(cpu) (&per_cpu(cpu_info, cpu))
+#define local_cpu_data (&__ia64_per_cpu_var(ia64_cpu_info))
+#define cpu_data(cpu) (&per_cpu(ia64_cpu_info, cpu))
extern void print_cpu_info (struct cpuinfo_ia64 *);
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index baec6f00f7f..40574ae1140 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -702,11 +702,23 @@ int __init early_acpi_boot_init(void)
printk(KERN_ERR PREFIX
"Error parsing MADT - no LAPIC entries\n");
+#ifdef CONFIG_SMP
+ if (available_cpus == 0) {
+ printk(KERN_INFO "ACPI: Found 0 CPUS; assuming 1\n");
+ printk(KERN_INFO "CPU 0 (0x%04x)", hard_smp_processor_id());
+ smp_boot_data.cpu_phys_id[available_cpus] =
+ hard_smp_processor_id();
+ available_cpus = 1; /* We've got at least one of these, no? */
+ }
+ smp_boot_data.cpu_count = available_cpus;
+#endif
+ /* Make boot-up look pretty */
+ printk(KERN_INFO "%d CPUs available, %d CPUs total\n", available_cpus,
+ total_cpus);
+
return 0;
}
-
-
int __init acpi_boot_init(void)
{
@@ -769,18 +781,8 @@ int __init acpi_boot_init(void)
if (acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt))
printk(KERN_ERR PREFIX "Can't find FADT\n");
+#ifdef CONFIG_ACPI_NUMA
#ifdef CONFIG_SMP
- if (available_cpus == 0) {
- printk(KERN_INFO "ACPI: Found 0 CPUS; assuming 1\n");
- printk(KERN_INFO "CPU 0 (0x%04x)", hard_smp_processor_id());
- smp_boot_data.cpu_phys_id[available_cpus] =
- hard_smp_processor_id();
- available_cpus = 1; /* We've got at least one of these, no? */
- }
- smp_boot_data.cpu_count = available_cpus;
-
- smp_build_cpu_map();
-# ifdef CONFIG_ACPI_NUMA
if (srat_num_cpus == 0) {
int cpu, i = 1;
for (cpu = 0; cpu < smp_boot_data.cpu_count; cpu++)
@@ -789,14 +791,9 @@ int __init acpi_boot_init(void)
node_cpuid[i++].phys_id =
smp_boot_data.cpu_phys_id[cpu];
}
-# endif
#endif
-#ifdef CONFIG_ACPI_NUMA
build_cpu_to_node_map();
#endif
- /* Make boot-up look pretty */
- printk(KERN_INFO "%d CPUs available, %d CPUs total\n", available_cpus,
- total_cpus);
return 0;
}
diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S
index 696eff28a0c..17a9fba3893 100644
--- a/arch/ia64/kernel/head.S
+++ b/arch/ia64/kernel/head.S
@@ -1051,7 +1051,7 @@ END(ia64_delay_loop)
* intermediate precision so that we can produce a full 64-bit result.
*/
GLOBAL_ENTRY(ia64_native_sched_clock)
- addl r8=THIS_CPU(cpu_info) + IA64_CPUINFO_NSEC_PER_CYC_OFFSET,r0
+ addl r8=THIS_CPU(ia64_cpu_info) + IA64_CPUINFO_NSEC_PER_CYC_OFFSET,r0
mov.m r9=ar.itc // fetch cycle-counter (35 cyc)
;;
ldf8 f8=[r8]
@@ -1077,7 +1077,7 @@ sched_clock = ia64_native_sched_clock
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
GLOBAL_ENTRY(cycle_to_cputime)
alloc r16=ar.pfs,1,0,0,0
- addl r8=THIS_CPU(cpu_info) + IA64_CPUINFO_NSEC_PER_CYC_OFFSET,r0
+ addl r8=THIS_CPU(ia64_cpu_info) + IA64_CPUINFO_NSEC_PER_CYC_OFFSET,r0
;;
ldf8 f8=[r8]
;;
diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c
index 14d39e30062..461b99902bf 100644
--- a/arch/ia64/kernel/ia64_ksyms.c
+++ b/arch/ia64/kernel/ia64_ksyms.c
@@ -30,7 +30,7 @@ EXPORT_SYMBOL(max_low_pfn); /* defined by bootmem.c, but not exported by generic
#endif
#include <asm/processor.h>
-EXPORT_SYMBOL(per_cpu__cpu_info);
+EXPORT_SYMBOL(per_cpu__ia64_cpu_info);
#ifdef CONFIG_SMP
EXPORT_SYMBOL(per_cpu__local_per_cpu_offset);
#endif
diff --git a/arch/ia64/kernel/mca_asm.S b/arch/ia64/kernel/mca_asm.S
index 7461d2573d4..d5bdf9de36b 100644
--- a/arch/ia64/kernel/mca_asm.S
+++ b/arch/ia64/kernel/mca_asm.S
@@ -59,7 +59,7 @@
ia64_do_tlb_purge:
#define O(member) IA64_CPUINFO_##member##_OFFSET
- GET_THIS_PADDR(r2, cpu_info) // load phys addr of cpu_info into r2
+ GET_THIS_PADDR(r2, ia64_cpu_info) // load phys addr of cpu_info into r2
;;
addl r17=O(PTCE_STRIDE),r2
addl r2=O(PTCE_BASE),r2
diff --git a/arch/ia64/kernel/relocate_kernel.S b/arch/ia64/kernel/relocate_kernel.S
index 32f6fc131fb..c370e02f006 100644
--- a/arch/ia64/kernel/relocate_kernel.S
+++ b/arch/ia64/kernel/relocate_kernel.S
@@ -61,7 +61,7 @@ GLOBAL_ENTRY(relocate_new_kernel)
// purge all TC entries
#define O(member) IA64_CPUINFO_##member##_OFFSET
- GET_THIS_PADDR(r2, cpu_info) // load phys addr of cpu_info into r2
+ GET_THIS_PADDR(r2, ia64_cpu_info) // load phys addr of cpu_info into r2
;;
addl r17=O(PTCE_STRIDE),r2
addl r2=O(PTCE_BASE),r2
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 1de86c96801..a1ea8791977 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -74,7 +74,7 @@ unsigned long __per_cpu_offset[NR_CPUS];
EXPORT_SYMBOL(__per_cpu_offset);
#endif
-DEFINE_PER_CPU(struct cpuinfo_ia64, cpu_info);
+DEFINE_PER_CPU(struct cpuinfo_ia64, ia64_cpu_info);
DEFINE_PER_CPU(unsigned long, local_per_cpu_offset);
unsigned long ia64_cycles_per_usec;
struct ia64_boot_param *ia64_boot_param;
@@ -566,19 +566,18 @@ setup_arch (char **cmdline_p)
early_acpi_boot_init();
# ifdef CONFIG_ACPI_NUMA
acpi_numa_init();
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
+# ifdef CONFIG_ACPI_HOTPLUG_CPU
prefill_possible_map();
-#endif
+# endif
per_cpu_scan_finalize((cpus_weight(early_cpu_possible_map) == 0 ?
32 : cpus_weight(early_cpu_possible_map)),
additional_cpus > 0 ? additional_cpus : 0);
# endif
-#else
-# ifdef CONFIG_SMP
- smp_build_cpu_map(); /* happens, e.g., with the Ski simulator */
-# endif
#endif /* CONFIG_APCI_BOOT */
+#ifdef CONFIG_SMP
+ smp_build_cpu_map();
+#endif
find_memory();
/* process SAL system table: */
@@ -856,18 +855,6 @@ identify_cpu (struct cpuinfo_ia64 *c)
}
/*
- * In UP configuration, setup_per_cpu_areas() is defined in
- * include/linux/percpu.h
- */
-#ifdef CONFIG_SMP
-void __init
-setup_per_cpu_areas (void)
-{
- /* start_kernel() requires this... */
-}
-#endif
-
-/*
* Do the following calculations:
*
* 1. the max. cache line size.
@@ -980,7 +967,7 @@ cpu_init (void)
* depends on the data returned by identify_cpu(). We break the dependency by
* accessing cpu_data() through the canonical per-CPU address.
*/
- cpu_info = cpu_data + ((char *) &__ia64_per_cpu_var(cpu_info) - __per_cpu_start);
+ cpu_info = cpu_data + ((char *) &__ia64_per_cpu_var(ia64_cpu_info) - __per_cpu_start);
identify_cpu(cpu_info);
#ifdef CONFIG_MCKINLEY
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index 0a0c77b2c98..1295ba327f6 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -166,6 +166,12 @@ SECTIONS
}
#endif
+#ifdef CONFIG_SMP
+ . = ALIGN(PERCPU_PAGE_SIZE);
+ __cpu0_per_cpu = .;
+ . = . + PERCPU_PAGE_SIZE; /* cpu0 per-cpu space */
+#endif
+
. = ALIGN(PAGE_SIZE);
__init_end = .;
@@ -198,11 +204,6 @@ SECTIONS
data : { } :data
.data : AT(ADDR(.data) - LOAD_OFFSET)
{
-#ifdef CONFIG_SMP
- . = ALIGN(PERCPU_PAGE_SIZE);
- __cpu0_per_cpu = .;
- . = . + PERCPU_PAGE_SIZE; /* cpu0 per-cpu space */
-#endif
INIT_TASK_DATA(PAGE_SIZE)
CACHELINE_ALIGNED_DATA(SMP_CACHE_BYTES)
READ_MOSTLY_DATA(SMP_CACHE_BYTES)
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index 2f724d2bf29..54bf5405981 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -154,38 +154,99 @@ static void *cpu_data;
void * __cpuinit
per_cpu_init (void)
{
- int cpu;
- static int first_time=1;
+ static bool first_time = true;
+ void *cpu0_data = __cpu0_per_cpu;
+ unsigned int cpu;
+
+ if (!first_time)
+ goto skip;
+ first_time = false;
/*
- * get_free_pages() cannot be used before cpu_init() done. BSP
- * allocates "NR_CPUS" pages for all CPUs to avoid that AP calls
- * get_zeroed_page().
+ * get_free_pages() cannot be used before cpu_init() done.
+ * BSP allocates PERCPU_PAGE_SIZE bytes for all possible CPUs
+ * to avoid that AP calls get_zeroed_page().
*/
- if (first_time) {
- void *cpu0_data = __cpu0_per_cpu;
+ for_each_possible_cpu(cpu) {
+ void *src = cpu == 0 ? cpu0_data : __phys_per_cpu_start;
- first_time=0;
+ memcpy(cpu_data, src, __per_cpu_end - __per_cpu_start);
+ __per_cpu_offset[cpu] = (char *)cpu_data - __per_cpu_start;
+ per_cpu(local_per_cpu_offset, cpu) = __per_cpu_offset[cpu];
- __per_cpu_offset[0] = (char *) cpu0_data - __per_cpu_start;
- per_cpu(local_per_cpu_offset, 0) = __per_cpu_offset[0];
+ /*
+ * percpu area for cpu0 is moved from the __init area
+ * which is setup by head.S and used till this point.
+ * Update ar.k3. This move is ensures that percpu
+ * area for cpu0 is on the correct node and its
+ * virtual address isn't insanely far from other
+ * percpu areas which is important for congruent
+ * percpu allocator.
+ */
+ if (cpu == 0)
+ ia64_set_kr(IA64_KR_PER_CPU_DATA, __pa(cpu_data) -
+ (unsigned long)__per_cpu_start);
- for (cpu = 1; cpu < NR_CPUS; cpu++) {
- memcpy(cpu_data, __phys_per_cpu_start, __per_cpu_end - __per_cpu_start);
- __per_cpu_offset[cpu] = (char *) cpu_data - __per_cpu_start;
- cpu_data += PERCPU_PAGE_SIZE;
- per_cpu(local_per_cpu_offset, cpu) = __per_cpu_offset[cpu];
- }
+ cpu_data += PERCPU_PAGE_SIZE;
}
+skip:
return __per_cpu_start + __per_cpu_offset[smp_processor_id()];
}
static inline void
alloc_per_cpu_data(void)
{
- cpu_data = __alloc_bootmem(PERCPU_PAGE_SIZE * NR_CPUS-1,
+ cpu_data = __alloc_bootmem(PERCPU_PAGE_SIZE * num_possible_cpus(),
PERCPU_PAGE_SIZE, __pa(MAX_DMA_ADDRESS));
}
+
+/**
+ * setup_per_cpu_areas - setup percpu areas
+ *
+ * Arch code has already allocated and initialized percpu areas. All
+ * this function has to do is to teach the determined layout to the
+ * dynamic percpu allocator, which happens to be more complex than
+ * creating whole new ones using helpers.
+ */
+void __init
+setup_per_cpu_areas(void)
+{
+ struct pcpu_alloc_info *ai;
+ struct pcpu_group_info *gi;
+ unsigned int cpu;
+ ssize_t static_size, reserved_size, dyn_size;
+ int rc;
+
+ ai = pcpu_alloc_alloc_info(1, num_possible_cpus());
+ if (!ai)
+ panic("failed to allocate pcpu_alloc_info");
+ gi = &ai->groups[0];
+
+ /* units are assigned consecutively to possible cpus */
+ for_each_possible_cpu(cpu)
+ gi->cpu_map[gi->nr_units++] = cpu;
+
+ /* set parameters */
+ static_size = __per_cpu_end - __per_cpu_start;
+ reserved_size = PERCPU_MODULE_RESERVE;
+ dyn_size = PERCPU_PAGE_SIZE - static_size - reserved_size;
+ if (dyn_size < 0)
+ panic("percpu area overflow static=%zd reserved=%zd\n",
+ static_size, reserved_size);
+
+ ai->static_size = static_size;
+ ai->reserved_size = reserved_size;
+ ai->dyn_size = dyn_size;
+ ai->unit_size = PERCPU_PAGE_SIZE;
+ ai->atom_size = PAGE_SIZE;
+ ai->alloc_size = PERCPU_PAGE_SIZE;
+
+ rc = pcpu_setup_first_chunk(ai, __per_cpu_start + __per_cpu_offset[0]);
+ if (rc)
+ panic("failed to setup percpu area (err=%d)", rc);
+
+ pcpu_free_alloc_info(ai);
+}
#else
#define alloc_per_cpu_data() do { } while (0)
#endif /* CONFIG_SMP */
@@ -270,8 +331,8 @@ paging_init (void)
map_size = PAGE_ALIGN(ALIGN(max_low_pfn, MAX_ORDER_NR_PAGES) *
sizeof(struct page));
- vmalloc_end -= map_size;
- vmem_map = (struct page *) vmalloc_end;
+ VMALLOC_END -= map_size;
+ vmem_map = (struct page *) VMALLOC_END;
efi_memmap_walk(create_mem_map_page_table, NULL);
/*
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index d85ba98d900..19c4b2195dc 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -143,22 +143,120 @@ static void *per_cpu_node_setup(void *cpu_data, int node)
int cpu;
for_each_possible_early_cpu(cpu) {
- if (cpu == 0) {
- void *cpu0_data = __cpu0_per_cpu;
- __per_cpu_offset[cpu] = (char*)cpu0_data -
- __per_cpu_start;
- } else if (node == node_cpuid[cpu].nid) {
- memcpy(__va(cpu_data), __phys_per_cpu_start,
- __per_cpu_end - __per_cpu_start);
- __per_cpu_offset[cpu] = (char*)__va(cpu_data) -
- __per_cpu_start;
- cpu_data += PERCPU_PAGE_SIZE;
- }
+ void *src = cpu == 0 ? __cpu0_per_cpu : __phys_per_cpu_start;
+
+ if (node != node_cpuid[cpu].nid)
+ continue;
+
+ memcpy(__va(cpu_data), src, __per_cpu_end - __per_cpu_start);
+ __per_cpu_offset[cpu] = (char *)__va(cpu_data) -
+ __per_cpu_start;
+
+ /*
+ * percpu area for cpu0 is moved from the __init area
+ * which is setup by head.S and used till this point.
+ * Update ar.k3. This move is ensures that percpu
+ * area for cpu0 is on the correct node and its
+ * virtual address isn't insanely far from other
+ * percpu areas which is important for congruent
+ * percpu allocator.
+ */
+ if (cpu == 0)
+ ia64_set_kr(IA64_KR_PER_CPU_DATA,
+ (unsigned long)cpu_data -
+ (unsigned long)__per_cpu_start);
+
+ cpu_data += PERCPU_PAGE_SIZE;
}
#endif
return cpu_data;
}
+#ifdef CONFIG_SMP
+/**
+ * setup_per_cpu_areas - setup percpu areas
+ *
+ * Arch code has already allocated and initialized percpu areas. All
+ * this function has to do is to teach the determined layout to the
+ * dynamic percpu allocator, which happens to be more complex than
+ * creating whole new ones using helpers.
+ */
+void __init setup_per_cpu_areas(void)
+{
+ struct pcpu_alloc_info *ai;
+ struct pcpu_group_info *uninitialized_var(gi);
+ unsigned int *cpu_map;
+ void *base;
+ unsigned long base_offset;
+ unsigned int cpu;
+ ssize_t static_size, reserved_size, dyn_size;
+ int node, prev_node, unit, nr_units, rc;
+
+ ai = pcpu_alloc_alloc_info(MAX_NUMNODES, nr_cpu_ids);
+ if (!ai)
+ panic("failed to allocate pcpu_alloc_info");
+ cpu_map = ai->groups[0].cpu_map;
+
+ /* determine base */
+ base = (void *)ULONG_MAX;
+ for_each_possible_cpu(cpu)
+ base = min(base,
+ (void *)(__per_cpu_offset[cpu] + __per_cpu_start));
+ base_offset = (void *)__per_cpu_start - base;
+
+ /* build cpu_map, units are grouped by node */
+ unit = 0;
+ for_each_node(node)
+ for_each_possible_cpu(cpu)
+ if (node == node_cpuid[cpu].nid)
+ cpu_map[unit++] = cpu;
+ nr_units = unit;
+
+ /* set basic parameters */
+ static_size = __per_cpu_end - __per_cpu_start;
+ reserved_size = PERCPU_MODULE_RESERVE;
+ dyn_size = PERCPU_PAGE_SIZE - static_size - reserved_size;
+ if (dyn_size < 0)
+ panic("percpu area overflow static=%zd reserved=%zd\n",
+ static_size, reserved_size);
+
+ ai->static_size = static_size;
+ ai->reserved_size = reserved_size;
+ ai->dyn_size = dyn_size;
+ ai->unit_size = PERCPU_PAGE_SIZE;
+ ai->atom_size = PAGE_SIZE;
+ ai->alloc_size = PERCPU_PAGE_SIZE;
+
+ /*
+ * CPUs are put into groups according to node. Walk cpu_map
+ * and create new groups at node boundaries.
+ */
+ prev_node = -1;
+ ai->nr_groups = 0;
+ for (unit = 0; unit < nr_units; unit++) {
+ cpu = cpu_map[unit];
+ node = node_cpuid[cpu].nid;
+
+ if (node == prev_node) {
+ gi->nr_units++;
+ continue;
+ }
+ prev_node = node;
+
+ gi = &ai->groups[ai->nr_groups++];
+ gi->nr_units = 1;
+ gi->base_offset = __per_cpu_offset[cpu] + base_offset;
+ gi->cpu_map = &cpu_map[unit];
+ }
+
+ rc = pcpu_setup_first_chunk(ai, base);
+ if (rc)
+ panic("failed to setup percpu area (err=%d)", rc);
+
+ pcpu_free_alloc_info(ai);
+}
+#endif
+
/**
* fill_pernode - initialize pernode data.
* @node: the node id.
@@ -352,7 +450,8 @@ static void __init initialize_pernode_data(void)
/* Set the node_data pointer for each per-cpu struct */
for_each_possible_early_cpu(cpu) {
node = node_cpuid[cpu].nid;
- per_cpu(cpu_info, cpu).node_data = mem_data[node].node_data;
+ per_cpu(ia64_cpu_info, cpu).node_data =
+ mem_data[node].node_data;
}
#else
{
@@ -360,7 +459,7 @@ static void __init initialize_pernode_data(void)
cpu = 0;
node = node_cpuid[cpu].nid;
cpu0_cpu_info = (struct cpuinfo_ia64 *)(__phys_per_cpu_start +
- ((char *)&per_cpu__cpu_info - __per_cpu_start));
+ ((char *)&per_cpu__ia64_cpu_info - __per_cpu_start));
cpu0_cpu_info->node_data = mem_data[node].node_data;
}
#endif /* CONFIG_SMP */
@@ -666,9 +765,9 @@ void __init paging_init(void)
sparse_init();
#ifdef CONFIG_VIRTUAL_MEM_MAP
- vmalloc_end -= PAGE_ALIGN(ALIGN(max_low_pfn, MAX_ORDER_NR_PAGES) *
+ VMALLOC_END -= PAGE_ALIGN(ALIGN(max_low_pfn, MAX_ORDER_NR_PAGES) *
sizeof(struct page));
- vmem_map = (struct page *) vmalloc_end;
+ vmem_map = (struct page *) VMALLOC_END;
efi_memmap_walk(create_mem_map_page_table, NULL);
printk("Virtual mem_map starts at 0x%p\n", vmem_map);
#endif
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 1857766a63c..b9609c69343 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -44,8 +44,8 @@ extern void ia64_tlb_init (void);
unsigned long MAX_DMA_ADDRESS = PAGE_OFFSET + 0x100000000UL;
#ifdef CONFIG_VIRTUAL_MEM_MAP
-unsigned long vmalloc_end = VMALLOC_END_INIT;
-EXPORT_SYMBOL(vmalloc_end);
+unsigned long VMALLOC_END = VMALLOC_END_INIT;
+EXPORT_SYMBOL(VMALLOC_END);
struct page *vmem_map;
EXPORT_SYMBOL(vmem_map);
#endif
diff --git a/arch/ia64/sn/kernel/sn2/sn2_smp.c b/arch/ia64/sn/kernel/sn2/sn2_smp.c
index 1176506b2ba..e884ba4e031 100644
--- a/arch/ia64/sn/kernel/sn2/sn2_smp.c
+++ b/arch/ia64/sn/kernel/sn2/sn2_smp.c
@@ -496,13 +496,13 @@ static int sn2_ptc_seq_show(struct seq_file *file, void *data)
seq_printf(file, "cpu %d %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld\n", cpu, stat->ptc_l,
stat->change_rid, stat->shub_ptc_flushes, stat->nodes_flushed,
stat->deadlocks,
- 1000 * stat->lock_itc_clocks / per_cpu(cpu_info, cpu).cyc_per_usec,
- 1000 * stat->shub_itc_clocks / per_cpu(cpu_info, cpu).cyc_per_usec,
- 1000 * stat->shub_itc_clocks_max / per_cpu(cpu_info, cpu).cyc_per_usec,
+ 1000 * stat->lock_itc_clocks / per_cpu(ia64_cpu_info, cpu).cyc_per_usec,
+ 1000 * stat->shub_itc_clocks / per_cpu(ia64_cpu_info, cpu).cyc_per_usec,
+ 1000 * stat->shub_itc_clocks_max / per_cpu(ia64_cpu_info, cpu).cyc_per_usec,
stat->shub_ptc_flushes_not_my_mm,
stat->deadlocks2,
stat->shub_ipi_flushes,
- 1000 * stat->shub_ipi_flushes_itc_clocks / per_cpu(cpu_info, cpu).cyc_per_usec);
+ 1000 * stat->shub_ipi_flushes_itc_clocks / per_cpu(ia64_cpu_info, cpu).cyc_per_usec);
}
return 0;
}
diff --git a/arch/ia64/xen/irq_xen.c b/arch/ia64/xen/irq_xen.c
index f042e192d2f..a3fb7cf9ae1 100644
--- a/arch/ia64/xen/irq_xen.c
+++ b/arch/ia64/xen/irq_xen.c
@@ -63,19 +63,19 @@ xen_free_irq_vector(int vector)
}
-static DEFINE_PER_CPU(int, timer_irq) = -1;
-static DEFINE_PER_CPU(int, ipi_irq) = -1;
-static DEFINE_PER_CPU(int, resched_irq) = -1;
-static DEFINE_PER_CPU(int, cmc_irq) = -1;
-static DEFINE_PER_CPU(int, cmcp_irq) = -1;
-static DEFINE_PER_CPU(int, cpep_irq) = -1;
+static DEFINE_PER_CPU(int, xen_timer_irq) = -1;
+static DEFINE_PER_CPU(int, xen_ipi_irq) = -1;
+static DEFINE_PER_CPU(int, xen_resched_irq) = -1;
+static DEFINE_PER_CPU(int, xen_cmc_irq) = -1;
+static DEFINE_PER_CPU(int, xen_cmcp_irq) = -1;
+static DEFINE_PER_CPU(int, xen_cpep_irq) = -1;
#define NAME_SIZE 15
-static DEFINE_PER_CPU(char[NAME_SIZE], timer_name);
-static DEFINE_PER_CPU(char[NAME_SIZE], ipi_name);
-static DEFINE_PER_CPU(char[NAME_SIZE], resched_name);
-static DEFINE_PER_CPU(char[NAME_SIZE], cmc_name);
-static DEFINE_PER_CPU(char[NAME_SIZE], cmcp_name);
-static DEFINE_PER_CPU(char[NAME_SIZE], cpep_name);
+static DEFINE_PER_CPU(char[NAME_SIZE], xen_timer_name);
+static DEFINE_PER_CPU(char[NAME_SIZE], xen_ipi_name);
+static DEFINE_PER_CPU(char[NAME_SIZE], xen_resched_name);
+static DEFINE_PER_CPU(char[NAME_SIZE], xen_cmc_name);
+static DEFINE_PER_CPU(char[NAME_SIZE], xen_cmcp_name);
+static DEFINE_PER_CPU(char[NAME_SIZE], xen_cpep_name);
#undef NAME_SIZE
struct saved_irq {
@@ -144,64 +144,64 @@ __xen_register_percpu_irq(unsigned int cpu, unsigned int vec,
if (xen_slab_ready) {
switch (vec) {
case IA64_TIMER_VECTOR:
- snprintf(per_cpu(timer_name, cpu),
- sizeof(per_cpu(timer_name, cpu)),
+ snprintf(per_cpu(xen_timer_name, cpu),
+ sizeof(per_cpu(xen_timer_name, cpu)),
"%s%d", action->name, cpu);
irq = bind_virq_to_irqhandler(VIRQ_ITC, cpu,
action->handler, action->flags,
- per_cpu(timer_name, cpu), action->dev_id);
- per_cpu(timer_irq, cpu) = irq;
+ per_cpu(xen_timer_name, cpu), action->dev_id);
+ per_cpu(xen_timer_irq, cpu) = irq;
break;
case IA64_IPI_RESCHEDULE:
- snprintf(per_cpu(resched_name, cpu),
- sizeof(per_cpu(resched_name, cpu)),
+ snprintf(per_cpu(xen_resched_name, cpu),
+ sizeof(per_cpu(xen_resched_name, cpu)),
"%s%d", action->name, cpu);
irq = bind_ipi_to_irqhandler(XEN_RESCHEDULE_VECTOR, cpu,
action->handler, action->flags,
- per_cpu(resched_name, cpu), action->dev_id);
- per_cpu(resched_irq, cpu) = irq;
+ per_cpu(xen_resched_name, cpu), action->dev_id);
+ per_cpu(xen_resched_irq, cpu) = irq;
break;
case IA64_IPI_VECTOR:
- snprintf(per_cpu(ipi_name, cpu),
- sizeof(per_cpu(ipi_name, cpu)),
+ snprintf(per_cpu(xen_ipi_name, cpu),
+ sizeof(per_cpu(xen_ipi_name, cpu)),
"%s%d", action->name, cpu);
irq = bind_ipi_to_irqhandler(XEN_IPI_VECTOR, cpu,
action->handler, action->flags,
- per_cpu(ipi_name, cpu), action->dev_id);
- per_cpu(ipi_irq, cpu) = irq;
+ per_cpu(xen_ipi_name, cpu), action->dev_id);
+ per_cpu(xen_ipi_irq, cpu) = irq;
break;
case IA64_CMC_VECTOR:
- snprintf(per_cpu(cmc_name, cpu),
- sizeof(per_cpu(cmc_name, cpu)),
+ snprintf(per_cpu(xen_cmc_name, cpu),
+ sizeof(per_cpu(xen_cmc_name, cpu)),
"%s%d", action->name, cpu);
irq = bind_virq_to_irqhandler(VIRQ_MCA_CMC, cpu,
- action->handler,
- action->flags,
- per_cpu(cmc_name, cpu),
- action->dev_id);
- per_cpu(cmc_irq, cpu) = irq;
+ action->handler,
+ action->flags,
+ per_cpu(xen_cmc_name, cpu),
+ action->dev_id);
+ per_cpu(xen_cmc_irq, cpu) = irq;
break;
case IA64_CMCP_VECTOR:
- snprintf(per_cpu(cmcp_name, cpu),
- sizeof(per_cpu(cmcp_name, cpu)),
+ snprintf(per_cpu(xen_cmcp_name, cpu),
+ sizeof(per_cpu(xen_cmcp_name, cpu)),
"%s%d", action->name, cpu);
irq = bind_ipi_to_irqhandler(XEN_CMCP_VECTOR, cpu,
- action->handler,
- action->flags,
- per_cpu(cmcp_name, cpu),
- action->dev_id);
- per_cpu(cmcp_irq, cpu) = irq;
+ action->handler,
+ action->flags,
+ per_cpu(xen_cmcp_name, cpu),
+ action->dev_id);
+ per_cpu(xen_cmcp_irq, cpu) = irq;
break;
case IA64_CPEP_VECTOR:
- snprintf(per_cpu(cpep_name, cpu),
- sizeof(per_cpu(cpep_name, cpu)),
+ snprintf(per_cpu(xen_cpep_name, cpu),
+ sizeof(per_cpu(xen_cpep_name, cpu)),
"%s%d", action->name, cpu);
irq = bind_ipi_to_irqhandler(XEN_CPEP_VECTOR, cpu,
- action->handler,
- action->flags,
- per_cpu(cpep_name, cpu),
- action->dev_id);
- per_cpu(cpep_irq, cpu) = irq;
+ action->handler,
+ action->flags,
+ per_cpu(xen_cpep_name, cpu),
+ action->dev_id);
+ per_cpu(xen_cpep_irq, cpu) = irq;
break;
case IA64_CPE_VECTOR:
case IA64_MCA_RENDEZ_VECTOR:
@@ -275,30 +275,33 @@ unbind_evtchn_callback(struct notifier_block *nfb,
if (action == CPU_DEAD) {
/* Unregister evtchn. */
- if (per_cpu(cpep_irq, cpu) >= 0) {
- unbind_from_irqhandler(per_cpu(cpep_irq, cpu), NULL);
- per_cpu(cpep_irq, cpu) = -1;
+ if (per_cpu(xen_cpep_irq, cpu) >= 0) {
+ unbind_from_irqhandler(per_cpu(xen_cpep_irq, cpu),
+ NULL);
+ per_cpu(xen_cpep_irq, cpu) = -1;
}
- if (per_cpu(cmcp_irq, cpu) >= 0) {
- unbind_from_irqhandler(per_cpu(cmcp_irq, cpu), NULL);
- per_cpu(cmcp_irq, cpu) = -1;
+ if (per_cpu(xen_cmcp_irq, cpu) >= 0) {
+ unbind_from_irqhandler(per_cpu(xen_cmcp_irq, cpu),
+ NULL);
+ per_cpu(xen_cmcp_irq, cpu) = -1;
}
- if (per_cpu(cmc_irq, cpu) >= 0) {
- unbind_from_irqhandler(per_cpu(cmc_irq, cpu), NULL);
- per_cpu(cmc_irq, cpu) = -1;
+ if (per_cpu(xen_cmc_irq, cpu) >= 0) {
+ unbind_from_irqhandler(per_cpu(xen_cmc_irq, cpu), NULL);
+ per_cpu(xen_cmc_irq, cpu) = -1;
}
- if (per_cpu(ipi_irq, cpu) >= 0) {
- unbind_from_irqhandler(per_cpu(ipi_irq, cpu), NULL);
- per_cpu(ipi_irq, cpu) = -1;
+ if (per_cpu(xen_ipi_irq, cpu) >= 0) {
+ unbind_from_irqhandler(per_cpu(xen_ipi_irq, cpu), NULL);
+ per_cpu(xen_ipi_irq, cpu) = -1;
}
- if (per_cpu(resched_irq, cpu) >= 0) {
- unbind_from_irqhandler(per_cpu(resched_irq, cpu),
- NULL);
- per_cpu(resched_irq, cpu) = -1;
+ if (per_cpu(xen_resched_irq, cpu) >= 0) {
+ unbind_from_irqhandler(per_cpu(xen_resched_irq, cpu),
+ NULL);
+ per_cpu(xen_resched_irq, cpu) = -1;
}
- if (per_cpu(timer_irq, cpu) >= 0) {
- unbind_from_irqhandler(per_cpu(timer_irq, cpu), NULL);
- per_cpu(timer_irq, cpu) = -1;
+ if (per_cpu(xen_timer_irq, cpu) >= 0) {
+ unbind_from_irqhandler(per_cpu(xen_timer_irq, cpu),
+ NULL);
+ per_cpu(xen_timer_irq, cpu) = -1;
}
}
return NOTIFY_OK;
diff --git a/arch/ia64/xen/time.c b/arch/ia64/xen/time.c
index dbeadb9c8e2..c1c544513e8 100644
--- a/arch/ia64/xen/time.c
+++ b/arch/ia64/xen/time.c
@@ -34,15 +34,15 @@
#include "../kernel/fsyscall_gtod_data.h"
-DEFINE_PER_CPU(struct vcpu_runstate_info, runstate);
-DEFINE_PER_CPU(unsigned long, processed_stolen_time);
-DEFINE_PER_CPU(unsigned long, processed_blocked_time);
+static DEFINE_PER_CPU(struct vcpu_runstate_info, xen_runstate);
+static DEFINE_PER_CPU(unsigned long, xen_stolen_time);
+static DEFINE_PER_CPU(unsigned long, xen_blocked_time);
/* taken from i386/kernel/time-xen.c */
static void xen_init_missing_ticks_accounting(int cpu)
{
struct vcpu_register_runstate_memory_area area;
- struct vcpu_runstate_info *runstate = &per_cpu(runstate, cpu);
+ struct vcpu_runstate_info *runstate = &per_cpu(xen_runstate, cpu);
int rc;
memset(runstate, 0, sizeof(*runstate));
@@ -52,8 +52,8 @@ static void xen_init_missing_ticks_accounting(int cpu)
&area);
WARN_ON(rc && rc != -ENOSYS);
- per_cpu(processed_blocked_time, cpu) = runstate->time[RUNSTATE_blocked];
- per_cpu(processed_stolen_time, cpu) = runstate->time[RUNSTATE_runnable]
+ per_cpu(xen_blocked_time, cpu) = runstate->time[RUNSTATE_blocked];
+ per_cpu(xen_stolen_time, cpu) = runstate->time[RUNSTATE_runnable]
+ runstate->time[RUNSTATE_offline];
}
@@ -68,7 +68,7 @@ static void get_runstate_snapshot(struct vcpu_runstate_info *res)
BUG_ON(preemptible());
- state = &__get_cpu_var(runstate);
+ state = &__get_cpu_var(xen_runstate);
/*
* The runstate info is always updated by the hypervisor on
@@ -103,12 +103,12 @@ consider_steal_time(unsigned long new_itm)
* This function just checks and reject this effect.
*/
if (!time_after_eq(runstate.time[RUNSTATE_blocked],
- per_cpu(processed_blocked_time, cpu)))
+ per_cpu(xen_blocked_time, cpu)))
blocked = 0;
if (!time_after_eq(runstate.time[RUNSTATE_runnable] +
runstate.time[RUNSTATE_offline],
- per_cpu(processed_stolen_time, cpu)))
+ per_cpu(xen_stolen_time, cpu)))
stolen = 0;
if (!time_after(delta_itm + new_itm, ia64_get_itc()))
@@ -147,8 +147,8 @@ consider_steal_time(unsigned long new_itm)
} else {
local_cpu_data->itm_next = delta_itm + new_itm;
}
- per_cpu(processed_stolen_time, cpu) += NS_PER_TICK * stolen;
- per_cpu(processed_blocked_time, cpu) += NS_PER_TICK * blocked;
+ per_cpu(xen_stolen_time, cpu) += NS_PER_TICK * stolen;
+ per_cpu(xen_blocked_time, cpu) += NS_PER_TICK * blocked;
}
return delta_itm;
}