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[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>
This commit is contained in:
David S. Miller 2005-08-30 11:26:15 -07:00
parent d7ce78fd9a
commit dbd2fdf549
2 changed files with 14 additions and 2 deletions
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3
arch/sparc64/kernel/head.S
View File

@ -539,10 +539,11 @@ cheetah_tlb_fixup:
call cheetah_plus_patch_winfixup
nop
2: /* Patch copy/page operations to cheetah optimized versions. */
call cheetah_patch_copyops
nop
call cheetah_patch_copy_page
nop
call cheetah_patch_cachetlbops
nop

13
arch/sparc64/lib/copy_page.S
View File

@ -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