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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-14 12:58:24 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-14 12:58:24 -0500
commitd0316554d3586cbea60592a41391b5def2553d6f (patch)
tree5e7418f0bacbc68cec5dfd1541e03eb56870aa02 /arch/ia64/kernel
parentfb0bbb92d42d5bd0ab224605444efdfed06d6934 (diff)
parent51e99be00ce2713cbb841cedc997cafa6e26c7f4 (diff)
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/kernel')
-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
7 files changed, 33 insertions, 48 deletions
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index baec6f00f7f3..40574ae11401 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -702,11 +702,23 @@ int __init early_acpi_boot_init(void)
702 printk(KERN_ERR PREFIX 702 printk(KERN_ERR PREFIX
703 "Error parsing MADT - no LAPIC entries\n"); 703 "Error parsing MADT - no LAPIC entries\n");
704 704
705#ifdef CONFIG_SMP
706 if (available_cpus == 0) {
707 printk(KERN_INFO "ACPI: Found 0 CPUS; assuming 1\n");
708 printk(KERN_INFO "CPU 0 (0x%04x)", hard_smp_processor_id());
709 smp_boot_data.cpu_phys_id[available_cpus] =
710 hard_smp_processor_id();
711 available_cpus = 1; /* We've got at least one of these, no? */
712 }
713 smp_boot_data.cpu_count = available_cpus;
714#endif
715 /* Make boot-up look pretty */
716 printk(KERN_INFO "%d CPUs available, %d CPUs total\n", available_cpus,
717 total_cpus);
718
705 return 0; 719 return 0;
706} 720}
707 721
708
709
710int __init acpi_boot_init(void) 722int __init acpi_boot_init(void)
711{ 723{
712 724
@@ -769,18 +781,8 @@ int __init acpi_boot_init(void)
769 if (acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt)) 781 if (acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt))
770 printk(KERN_ERR PREFIX "Can't find FADT\n"); 782 printk(KERN_ERR PREFIX "Can't find FADT\n");
771 783
784#ifdef CONFIG_ACPI_NUMA
772#ifdef CONFIG_SMP 785#ifdef CONFIG_SMP
773 if (available_cpus == 0) {
774 printk(KERN_INFO "ACPI: Found 0 CPUS; assuming 1\n");
775 printk(KERN_INFO "CPU 0 (0x%04x)", hard_smp_processor_id());
776 smp_boot_data.cpu_phys_id[available_cpus] =
777 hard_smp_processor_id();
778 available_cpus = 1; /* We've got at least one of these, no? */
779 }
780 smp_boot_data.cpu_count = available_cpus;
781
782 smp_build_cpu_map();
783# ifdef CONFIG_ACPI_NUMA
784 if (srat_num_cpus == 0) { 786 if (srat_num_cpus == 0) {
785 int cpu, i = 1; 787 int cpu, i = 1;
786 for (cpu = 0; cpu < smp_boot_data.cpu_count; cpu++) 788 for (cpu = 0; cpu < smp_boot_data.cpu_count; cpu++)
@@ -789,14 +791,9 @@ int __init acpi_boot_init(void)
789 node_cpuid[i++].phys_id = 791 node_cpuid[i++].phys_id =
790 smp_boot_data.cpu_phys_id[cpu]; 792 smp_boot_data.cpu_phys_id[cpu];
791 } 793 }
792# endif
793#endif 794#endif
794#ifdef CONFIG_ACPI_NUMA
795 build_cpu_to_node_map(); 795 build_cpu_to_node_map();
796#endif 796#endif
797 /* Make boot-up look pretty */
798 printk(KERN_INFO "%d CPUs available, %d CPUs total\n", available_cpus,
799 total_cpus);
800 return 0; 797 return 0;
801} 798}
802 799
diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S
index 696eff28a0c4..17a9fba38930 100644
--- a/arch/ia64/kernel/head.S
+++ b/arch/ia64/kernel/head.S
@@ -1051,7 +1051,7 @@ END(ia64_delay_loop)
1051 * intermediate precision so that we can produce a full 64-bit result. 1051 * intermediate precision so that we can produce a full 64-bit result.
1052 */ 1052 */
1053GLOBAL_ENTRY(ia64_native_sched_clock) 1053GLOBAL_ENTRY(ia64_native_sched_clock)
1054 addl r8=THIS_CPU(cpu_info) + IA64_CPUINFO_NSEC_PER_CYC_OFFSET,r0 1054 addl r8=THIS_CPU(ia64_cpu_info) + IA64_CPUINFO_NSEC_PER_CYC_OFFSET,r0
1055 mov.m r9=ar.itc // fetch cycle-counter (35 cyc) 1055 mov.m r9=ar.itc // fetch cycle-counter (35 cyc)
1056 ;; 1056 ;;
1057 ldf8 f8=[r8] 1057 ldf8 f8=[r8]
@@ -1077,7 +1077,7 @@ sched_clock = ia64_native_sched_clock
1077#ifdef CONFIG_VIRT_CPU_ACCOUNTING 1077#ifdef CONFIG_VIRT_CPU_ACCOUNTING
1078GLOBAL_ENTRY(cycle_to_cputime) 1078GLOBAL_ENTRY(cycle_to_cputime)
1079 alloc r16=ar.pfs,1,0,0,0 1079 alloc r16=ar.pfs,1,0,0,0
1080 addl r8=THIS_CPU(cpu_info) + IA64_CPUINFO_NSEC_PER_CYC_OFFSET,r0 1080 addl r8=THIS_CPU(ia64_cpu_info) + IA64_CPUINFO_NSEC_PER_CYC_OFFSET,r0
1081 ;; 1081 ;;
1082 ldf8 f8=[r8] 1082 ldf8 f8=[r8]
1083 ;; 1083 ;;
diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c
index 14d39e300627..461b99902bf6 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
30#endif 30#endif
31 31
32#include <asm/processor.h> 32#include <asm/processor.h>
33EXPORT_SYMBOL(per_cpu__cpu_info); 33EXPORT_SYMBOL(per_cpu__ia64_cpu_info);
34#ifdef CONFIG_SMP 34#ifdef CONFIG_SMP
35EXPORT_SYMBOL(per_cpu__local_per_cpu_offset); 35EXPORT_SYMBOL(per_cpu__local_per_cpu_offset);
36#endif 36#endif
diff --git a/arch/ia64/kernel/mca_asm.S b/arch/ia64/kernel/mca_asm.S
index 7461d2573d41..d5bdf9de36b6 100644
--- a/arch/ia64/kernel/mca_asm.S
+++ b/arch/ia64/kernel/mca_asm.S
@@ -59,7 +59,7 @@
59ia64_do_tlb_purge: 59ia64_do_tlb_purge:
60#define O(member) IA64_CPUINFO_##member##_OFFSET 60#define O(member) IA64_CPUINFO_##member##_OFFSET
61 61
62 GET_THIS_PADDR(r2, cpu_info) // load phys addr of cpu_info into r2 62 GET_THIS_PADDR(r2, ia64_cpu_info) // load phys addr of cpu_info into r2
63 ;; 63 ;;
64 addl r17=O(PTCE_STRIDE),r2 64 addl r17=O(PTCE_STRIDE),r2
65 addl r2=O(PTCE_BASE),r2 65 addl r2=O(PTCE_BASE),r2
diff --git a/arch/ia64/kernel/relocate_kernel.S b/arch/ia64/kernel/relocate_kernel.S
index 32f6fc131fbe..c370e02f0061 100644
--- a/arch/ia64/kernel/relocate_kernel.S
+++ b/arch/ia64/kernel/relocate_kernel.S
@@ -61,7 +61,7 @@ GLOBAL_ENTRY(relocate_new_kernel)
61 61
62 // purge all TC entries 62 // purge all TC entries
63#define O(member) IA64_CPUINFO_##member##_OFFSET 63#define O(member) IA64_CPUINFO_##member##_OFFSET
64 GET_THIS_PADDR(r2, cpu_info) // load phys addr of cpu_info into r2 64 GET_THIS_PADDR(r2, ia64_cpu_info) // load phys addr of cpu_info into r2
65 ;; 65 ;;
66 addl r17=O(PTCE_STRIDE),r2 66 addl r17=O(PTCE_STRIDE),r2
67 addl r2=O(PTCE_BASE),r2 67 addl r2=O(PTCE_BASE),r2
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 1de86c96801d..a1ea87919777 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -74,7 +74,7 @@ unsigned long __per_cpu_offset[NR_CPUS];
74EXPORT_SYMBOL(__per_cpu_offset); 74EXPORT_SYMBOL(__per_cpu_offset);
75#endif 75#endif
76 76
77DEFINE_PER_CPU(struct cpuinfo_ia64, cpu_info); 77DEFINE_PER_CPU(struct cpuinfo_ia64, ia64_cpu_info);
78DEFINE_PER_CPU(unsigned long, local_per_cpu_offset); 78DEFINE_PER_CPU(unsigned long, local_per_cpu_offset);
79unsigned long ia64_cycles_per_usec; 79unsigned long ia64_cycles_per_usec;
80struct ia64_boot_param *ia64_boot_param; 80struct ia64_boot_param *ia64_boot_param;
@@ -566,19 +566,18 @@ setup_arch (char **cmdline_p)
566 early_acpi_boot_init(); 566 early_acpi_boot_init();
567# ifdef CONFIG_ACPI_NUMA 567# ifdef CONFIG_ACPI_NUMA
568 acpi_numa_init(); 568 acpi_numa_init();
569#ifdef CONFIG_ACPI_HOTPLUG_CPU 569# ifdef CONFIG_ACPI_HOTPLUG_CPU
570 prefill_possible_map(); 570 prefill_possible_map();
571#endif 571# endif
572 per_cpu_scan_finalize((cpus_weight(early_cpu_possible_map) == 0 ? 572 per_cpu_scan_finalize((cpus_weight(early_cpu_possible_map) == 0 ?
573 32 : cpus_weight(early_cpu_possible_map)), 573 32 : cpus_weight(early_cpu_possible_map)),
574 additional_cpus > 0 ? additional_cpus : 0); 574 additional_cpus > 0 ? additional_cpus : 0);
575# endif 575# endif
576#else
577# ifdef CONFIG_SMP
578 smp_build_cpu_map(); /* happens, e.g., with the Ski simulator */
579# endif
580#endif /* CONFIG_APCI_BOOT */ 576#endif /* CONFIG_APCI_BOOT */
581 577
578#ifdef CONFIG_SMP
579 smp_build_cpu_map();
580#endif
582 find_memory(); 581 find_memory();
583 582
584 /* process SAL system table: */ 583 /* process SAL system table: */
@@ -856,18 +855,6 @@ identify_cpu (struct cpuinfo_ia64 *c)
856} 855}
857 856
858/* 857/*
859 * In UP configuration, setup_per_cpu_areas() is defined in
860 * include/linux/percpu.h
861 */
862#ifdef CONFIG_SMP
863void __init
864setup_per_cpu_areas (void)
865{
866 /* start_kernel() requires this... */
867}
868#endif
869
870/*
871 * Do the following calculations: 858 * Do the following calculations:
872 * 859 *
873 * 1. the max. cache line size. 860 * 1. the max. cache line size.
@@ -980,7 +967,7 @@ cpu_init (void)
980 * depends on the data returned by identify_cpu(). We break the dependency by 967 * depends on the data returned by identify_cpu(). We break the dependency by
981 * accessing cpu_data() through the canonical per-CPU address. 968 * accessing cpu_data() through the canonical per-CPU address.
982 */ 969 */
983 cpu_info = cpu_data + ((char *) &__ia64_per_cpu_var(cpu_info) - __per_cpu_start); 970 cpu_info = cpu_data + ((char *) &__ia64_per_cpu_var(ia64_cpu_info) - __per_cpu_start);
984 identify_cpu(cpu_info); 971 identify_cpu(cpu_info);
985 972
986#ifdef CONFIG_MCKINLEY 973#ifdef CONFIG_MCKINLEY
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index 0a0c77b2c988..1295ba327f6f 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -166,6 +166,12 @@ SECTIONS
166 } 166 }
167#endif 167#endif
168 168
169#ifdef CONFIG_SMP
170 . = ALIGN(PERCPU_PAGE_SIZE);
171 __cpu0_per_cpu = .;
172 . = . + PERCPU_PAGE_SIZE; /* cpu0 per-cpu space */
173#endif
174
169 . = ALIGN(PAGE_SIZE); 175 . = ALIGN(PAGE_SIZE);
170 __init_end = .; 176 __init_end = .;
171 177
@@ -198,11 +204,6 @@ SECTIONS
198 data : { } :data 204 data : { } :data
199 .data : AT(ADDR(.data) - LOAD_OFFSET) 205 .data : AT(ADDR(.data) - LOAD_OFFSET)
200 { 206 {
201#ifdef CONFIG_SMP
202 . = ALIGN(PERCPU_PAGE_SIZE);
203 __cpu0_per_cpu = .;
204 . = . + PERCPU_PAGE_SIZE; /* cpu0 per-cpu space */
205#endif
206 INIT_TASK_DATA(PAGE_SIZE) 207 INIT_TASK_DATA(PAGE_SIZE)
207 CACHELINE_ALIGNED_DATA(SMP_CACHE_BYTES) 208 CACHELINE_ALIGNED_DATA(SMP_CACHE_BYTES)
208 READ_MOSTLY_DATA(SMP_CACHE_BYTES) 209 READ_MOSTLY_DATA(SMP_CACHE_BYTES)