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authorDavid S. Miller <davem@davemloft.net>2005-08-30 20:26:15 +0200
committerDavid S. Miller <davem@davemloft.net>2005-08-30 20:26:15 +0200
commitdbd2fdf549317de00e0b5ea465de5372039b7ee8 (patch)
tree67fad29313468b3f232264e98b508d9f3bd6a4de /arch/sparc64/lib
parent[SPARC64]: Eliminate irq_cpustat_t. (diff)
downloadlinux-dbd2fdf549317de00e0b5ea465de5372039b7ee8.tar.xz
linux-dbd2fdf549317de00e0b5ea465de5372039b7ee8.zip
[SPARC64]: Kill BRANCH_IF_ANY_CHEETAH() from copy page.
Just patch the branch at boot time instead. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/lib')
-rw-r--r--arch/sparc64/lib/copy_page.S13
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/sparc64/lib/copy_page.S b/arch/sparc64/lib/copy_page.S
index 23ebf2c970b7..feebb14fd27a 100644
--- a/arch/sparc64/lib/copy_page.S
+++ b/arch/sparc64/lib/copy_page.S
@@ -87,7 +87,7 @@ copy_user_page: /* %o0=dest, %o1=src, %o2=vaddr */
membar #Sync
wrpr %o2, 0x0, %pstate
- BRANCH_IF_ANY_CHEETAH(g3,o2,1f)
+cheetah_copy_page_insn:
ba,pt %xcc, 9f
nop
@@ -240,3 +240,14 @@ copy_user_page: /* %o0=dest, %o1=src, %o2=vaddr */
stw %o4, [%g6 + TI_PRE_COUNT]
.size copy_user_page, .-copy_user_page
+
+ .globl cheetah_patch_copy_page
+cheetah_patch_copy_page:
+ sethi %hi(0x01000000), %o1 ! NOP
+ sethi %hi(cheetah_copy_page_insn), %o0
+ or %o0, %lo(cheetah_copy_page_insn), %o0
+ stw %o1, [%o0]
+ membar #StoreStore
+ flush %o0
+ retl
+ nop