]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - include/asm-generic/percpu.h
ide: add ide_dev_is_sata() helper (take 2)
[linux-2.6-omap-h63xx.git] / include / asm-generic / percpu.h
index 78cf45547e31f0a5742be733f31c0a394297c040..d85172e9ed4580afa55c333e49fcb2ee925403db 100644 (file)
@@ -1,25 +1,36 @@
 #ifndef _ASM_GENERIC_PERCPU_H_
 #define _ASM_GENERIC_PERCPU_H_
 #include <linux/compiler.h>
+#include <linux/threads.h>
 
 #define __GENERIC_PER_CPU
 #ifdef CONFIG_SMP
 
 extern unsigned long __per_cpu_offset[NR_CPUS];
 
+#define per_cpu_offset(x) (__per_cpu_offset[x])
+
 /* Separate out the type, so (int[3], foo) works. */
 #define DEFINE_PER_CPU(type, name) \
     __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name
 
+#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name)              \
+    __attribute__((__section__(".data.percpu.shared_aligned"))) \
+    __typeof__(type) per_cpu__##name                           \
+    ____cacheline_aligned_in_smp
+
 /* var is in discarded region: offset to particular copy we want */
-#define per_cpu(var, cpu) (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset[cpu]))
+#define per_cpu(var, cpu) (*({                         \
+       extern int simple_identifier_##var(void);       \
+       RELOC_HIDE(&per_cpu__##var, __per_cpu_offset[cpu]); }))
 #define __get_cpu_var(var) per_cpu(var, smp_processor_id())
+#define __raw_get_cpu_var(var) per_cpu(var, raw_smp_processor_id())
 
 /* A macro to avoid #include hell... */
 #define percpu_modcopy(pcpudst, src, size)                     \
 do {                                                           \
        unsigned int __i;                                       \
-       for_each_cpu(__i)                                       \
+       for_each_possible_cpu(__i)                              \
                memcpy((pcpudst)+__per_cpu_offset[__i],         \
                       (src), (size));                          \
 } while (0)
@@ -28,8 +39,12 @@ do {                                                         \
 #define DEFINE_PER_CPU(type, name) \
     __typeof__(type) per_cpu__##name
 
+#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name)      \
+    DEFINE_PER_CPU(type, name)
+
 #define per_cpu(var, cpu)                      (*((void)(cpu), &per_cpu__##var))
 #define __get_cpu_var(var)                     per_cpu__##var
+#define __raw_get_cpu_var(var)                 per_cpu__##var
 
 #endif /* SMP */