summaryrefslogtreecommitdiffstats
path: root/arch/mips/include
diff options
context:
space:
mode:
authorDavid Daney <ddaney@caviumnetworks.com>2010-10-14 12:36:49 -0700
committerRalf Baechle <ralf@linux-mips.org>2011-01-18 19:30:28 +0100
commit1befdd5536e1500371f7f884d0f0ae528a519333 (patch)
tree0c189a3c6686381f1393f9ea5cb161c36e08738f /arch/mips/include
parentf5b35d0b16a08e6c1e7c8a41fa87ad10cf9aefa4 (diff)
MIPS: Implement __read_mostly
Just do what everyone else is doing by placing __read_mostly things in the .data.read_mostly section. mips_io_port_base can not be read-only (const) and writable (__read_mostly) at the same time. One of them has to go, so I chose to eliminate the __read_mostly. It will still get stuck in a portion of memory that is not adjacent to things that are written, and thus not be on a dirty cache line, for whatever that is worth. Signed-off-by: David Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1702/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include')
-rw-r--r--arch/mips/include/asm/cache.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cache.h b/arch/mips/include/asm/cache.h
index 37f175c42bb..650ac9ba734 100644
--- a/arch/mips/include/asm/cache.h
+++ b/arch/mips/include/asm/cache.h
@@ -17,4 +17,6 @@
#define SMP_CACHE_SHIFT L1_CACHE_SHIFT
#define SMP_CACHE_BYTES L1_CACHE_BYTES
+#define __read_mostly __attribute__((__section__(".data.read_mostly")))
+
#endif /* _ASM_CACHE_H */