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| author | David S. Miller <davem@sunset.davemloft.net> | 2006-02-07 22:13:05 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 01:11:56 -0800 |
| commit | 8b11bd12aff76e02cdc2cbc9e439bba88d281223 (patch) | |
| tree | 903ab8830616bfbe5a821e4359f642842c8060a4 /arch/sparc64/kernel/head.S | |
| parent | 481295f982b21b1dbe71cbf41d3a93028fee30d1 (diff) | |
| download | lwn-8b11bd12aff76e02cdc2cbc9e439bba88d281223.tar.gz lwn-8b11bd12aff76e02cdc2cbc9e439bba88d281223.zip | |
[SPARC64]: Patch up mmu context register writes for sun4v.
sun4v uses ASI_MMU instead of ASI_DMMU
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/head.S')
| -rw-r--r-- | arch/sparc64/kernel/head.S | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S index f04f7391f236..a304845f8c56 100644 --- a/arch/sparc64/kernel/head.S +++ b/arch/sparc64/kernel/head.S @@ -303,12 +303,24 @@ jump_to_sun4u_init: sun4u_init: /* Set ctx 0 */ - mov PRIMARY_CONTEXT, %g7 - stxa %g0, [%g7] ASI_DMMU - membar #Sync + mov PRIMARY_CONTEXT, %g7 + +661: stxa %g0, [%g7] ASI_DMMU + .section .sun4v_1insn_patch, "ax" + .word 661b + stxa %g0, [%g7] ASI_MMU + .previous + + membar #Sync + + mov SECONDARY_CONTEXT, %g7 + +661: stxa %g0, [%g7] ASI_DMMU + .section .sun4v_1insn_patch, "ax" + .word 661b + stxa %g0, [%g7] ASI_MMU + .previous - mov SECONDARY_CONTEXT, %g7 - stxa %g0, [%g7] ASI_DMMU membar #Sync BRANCH_IF_ANY_CHEETAH(g1,g7,cheetah_tlb_fixup) @@ -436,8 +448,15 @@ setup_trap_table: /* Start using proper page size encodings in ctx register. */ sethi %hi(sparc64_kern_pri_context), %g3 ldx [%g3 + %lo(sparc64_kern_pri_context)], %g2 - mov PRIMARY_CONTEXT, %g1 - stxa %g2, [%g1] ASI_DMMU + + mov PRIMARY_CONTEXT, %g1 + +661: stxa %g2, [%g1] ASI_DMMU + .section .sun4v_1insn_patch, "ax" + .word 661b + stxa %g2, [%g1] ASI_MMU + .previous + membar #Sync /* Kill PROM timer */ |