AcoSail/kernel_optimize_test
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alpha: use L1_CACHE_BYTES for cacheline size in the linker script

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Currently the linker script uses 64 for cacheline size which isn't
optimal for all cases.  Include asm/cache.h and use L1_CACHE_BYTES
instead as suggested by Sam Ravnborg.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Tejun Heo 2011-01-25 14:27:38 +01:00
parent 19df0c2fef
commit 0f06c06362
1 changed files with 3 additions and 2 deletions
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5
arch/alpha/kernel/vmlinux.lds.S
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@ -1,5 +1,6 @@
#include <asm-generic/vmlinux.lds.h>
#include <asm/thread_info.h>
#include <asm/cache.h>
#include <asm/page.h>
OUTPUT_FORMAT("elf64-alpha")
@ -38,7 +39,7 @@ SECTIONS
__init_begin = ALIGN(PAGE_SIZE);
INIT_TEXT_SECTION(PAGE_SIZE)
INIT_DATA_SECTION(16)
PERCPU(64, PAGE_SIZE)
PERCPU(L1_CACHE_BYTES, PAGE_SIZE)
/* Align to THREAD_SIZE rather than PAGE_SIZE here so any padding page
needed for the THREAD_SIZE aligned init_task gets freed after init */
. = ALIGN(THREAD_SIZE);
@ -46,7 +47,7 @@ SECTIONS
/* Freed after init ends here */
_data = .;
RW_DATA_SECTION(64, PAGE_SIZE, THREAD_SIZE)
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
.got : {
*(.got)