summaryrefslogtreecommitdiffstats
path: root/arch/x86/include/asm/percpu.h
diff options
context:
space:
mode:
authorTejun Heo <tj@kernel.org>2009-02-20 08:29:09 +0100
committerTejun Heo <tj@kernel.org>2009-02-20 08:29:09 +0100
commit11124411aa95827404d6bfdfc14c908e1b54513c (patch)
treee613edf6df9d1130e0ebe853ba1390c8389b25b3 /arch/x86/include/asm/percpu.h
parentpercpu: implement new dynamic percpu allocator (diff)
downloadlinux-11124411aa95827404d6bfdfc14c908e1b54513c.tar.xz
linux-11124411aa95827404d6bfdfc14c908e1b54513c.zip
x86: convert to the new dynamic percpu allocator
Impact: use new dynamic allocator, unified access to static/dynamic percpu memory Convert to the new dynamic percpu allocator. * implement populate_extra_pte() for both 32 and 64 * update setup_per_cpu_areas() to use pcpu_setup_static() * define __addr_to_pcpu_ptr() and __pcpu_ptr_to_addr() * define config HAVE_DYNAMIC_PER_CPU_AREA Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/percpu.h')
-rw-r--r--arch/x86/include/asm/percpu.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index aee103b26d01..8f1d2fbec1d4 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -43,6 +43,14 @@
#else /* ...!ASSEMBLY */
#include <linux/stringify.h>
+#include <asm/sections.h>
+
+#define __addr_to_pcpu_ptr(addr) \
+ (void *)((unsigned long)(addr) - (unsigned long)pcpu_base_addr \
+ + (unsigned long)__per_cpu_start)
+#define __pcpu_ptr_to_addr(ptr) \
+ (void *)((unsigned long)(ptr) + (unsigned long)pcpu_base_addr \
+ - (unsigned long)__per_cpu_start)
#ifdef CONFIG_SMP
#define __percpu_arg(x) "%%"__stringify(__percpu_seg)":%P" #x