Merge branches 'x86/paravirt', 'x86/pat', 'x86/setup-v2', 'x86/subarch', 'x86/uaccess...

[platform/adaptation/renesas_rcar/renesas_kernel.git] / include / linux / percpu.h

diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index 9f2a375..3577ffd 100644 (file)
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -8,35 +8,46 @@
 
 #include <asm/percpu.h>
 
+#ifndef PER_CPU_BASE_SECTION
+#ifdef CONFIG_SMP
+#define PER_CPU_BASE_SECTION ".data.percpu"
+#else
+#define PER_CPU_BASE_SECTION ".data"
+#endif
+#endif
+
 #ifdef CONFIG_SMP
-#define DEFINE_PER_CPU(type, name)                                     \
-       __attribute__((__section__(".data.percpu")))                    \
-       PER_CPU_ATTRIBUTES __typeof__(type) per_cpu__##name
 
 #ifdef MODULE
-#define SHARED_ALIGNED_SECTION ".data.percpu"
+#define PER_CPU_SHARED_ALIGNED_SECTION ""
 #else
-#define SHARED_ALIGNED_SECTION ".data.percpu.shared_aligned"
+#define PER_CPU_SHARED_ALIGNED_SECTION ".shared_aligned"
 #endif
+#define PER_CPU_FIRST_SECTION ".first"
 
-#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name)                      \
-       __attribute__((__section__(SHARED_ALIGNED_SECTION)))            \
-       PER_CPU_ATTRIBUTES __typeof__(type) per_cpu__##name             \
-       ____cacheline_aligned_in_smp
+#else
 
-#define DEFINE_PER_CPU_PAGE_ALIGNED(type, name)                        \
-       __attribute__((__section__(".data.percpu.page_aligned")))       \
+#define PER_CPU_SHARED_ALIGNED_SECTION ""
+#define PER_CPU_FIRST_SECTION ""
+
+#endif
+
+#define DEFINE_PER_CPU_SECTION(type, name, section)                    \
+       __attribute__((__section__(PER_CPU_BASE_SECTION section)))      \
        PER_CPU_ATTRIBUTES __typeof__(type) per_cpu__##name
-#else
+
 #define DEFINE_PER_CPU(type, name)                                     \
-       PER_CPU_ATTRIBUTES __typeof__(type) per_cpu__##name
+       DEFINE_PER_CPU_SECTION(type, name, "")
 
-#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name)                    \
-       DEFINE_PER_CPU(type, name)
+#define DEFINE_PER_CPU_SHARED_ALIGNED(type, name)                      \
+       DEFINE_PER_CPU_SECTION(type, name, PER_CPU_SHARED_ALIGNED_SECTION) \
+       ____cacheline_aligned_in_smp
 
-#define DEFINE_PER_CPU_PAGE_ALIGNED(type, name)                      \
-       DEFINE_PER_CPU(type, name)
-#endif
+#define DEFINE_PER_CPU_PAGE_ALIGNED(type, name)                                \
+       DEFINE_PER_CPU_SECTION(type, name, ".page_aligned")
+
+#define DEFINE_PER_CPU_FIRST(type, name)                               \
+       DEFINE_PER_CPU_SECTION(type, name, PER_CPU_FIRST_SECTION)
 
 #define EXPORT_PER_CPU_SYMBOL(var) EXPORT_SYMBOL(per_cpu__##var)
 #define EXPORT_PER_CPU_SYMBOL_GPL(var) EXPORT_SYMBOL_GPL(per_cpu__##var)