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| author | Ingo Molnar <mingo@kernel.org> | 2012-05-30 10:59:04 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-05-30 10:59:04 +0200 |
| commit | 063e04776172f93b16a5eefd5661a340c1126513 (patch) | |
| tree | 19cb1623631c8cc5dcf0d91f4731feec7cbefa04 /arch/tile/mm/migrate_64.S | |
| parent | 59cd358a7a5b2f6b61faa01dae6cfda3830ac62a (diff) | |
| parent | 731a7378b81c2f5fa88ca1ae20b83d548d5613dc (diff) | |
| download | blackbird-op-linux-063e04776172f93b16a5eefd5661a340c1126513.tar.gz blackbird-op-linux-063e04776172f93b16a5eefd5661a340c1126513.zip | |
Merge branch 'linus' into perf/urgent
Merge back Linus's latest branch so that we pick up the uprobes changes.
( I tested this branch locally and while it's one from the middle of the
merge window it's a good one to base further work off. )
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/tile/mm/migrate_64.S')
| -rw-r--r-- | arch/tile/mm/migrate_64.S | 34 |
1 files changed, 7 insertions, 27 deletions
diff --git a/arch/tile/mm/migrate_64.S b/arch/tile/mm/migrate_64.S index e76fea688beb..1d15b10833d1 100644 --- a/arch/tile/mm/migrate_64.S +++ b/arch/tile/mm/migrate_64.S @@ -38,8 +38,7 @@ #define FRAME_R30 16 #define FRAME_R31 24 #define FRAME_R32 32 -#define FRAME_R33 40 -#define FRAME_SIZE 48 +#define FRAME_SIZE 40 @@ -60,10 +59,9 @@ #define r_my_cpumask r3 /* Locals (callee-save); must not be more than FRAME_xxx above. */ -#define r_save_ics r30 -#define r_context r31 -#define r_access r32 -#define r_asid r33 +#define r_context r30 +#define r_access r31 +#define r_asid r32 /* * Caller-save locals and frame constants are the same as @@ -93,11 +91,7 @@ STD_ENTRY(flush_and_install_context) st r_tmp, r31 addi r_tmp, sp, FRAME_R32 } - { - st r_tmp, r32 - addi r_tmp, sp, FRAME_R33 - } - st r_tmp, r33 + st r_tmp, r32 /* Move some arguments to callee-save registers. */ { @@ -106,13 +100,6 @@ STD_ENTRY(flush_and_install_context) } move r_asid, r_asid_in - /* Disable interrupts, since we can't use our stack. */ - { - mfspr r_save_ics, INTERRUPT_CRITICAL_SECTION - movei r_tmp, 1 - } - mtspr INTERRUPT_CRITICAL_SECTION, r_tmp - /* First, flush our L2 cache. */ { move r0, zero /* cache_pa */ @@ -147,7 +134,7 @@ STD_ENTRY(flush_and_install_context) } { move r2, r_asid - movei r3, HV_CTX_DIRECTIO + moveli r3, HV_CTX_DIRECTIO | CTX_PAGE_FLAG } jal hv_install_context bnez r0, 1f @@ -158,10 +145,7 @@ STD_ENTRY(flush_and_install_context) jal hv_flush_all } -1: /* Reset interrupts back how they were before. */ - mtspr INTERRUPT_CRITICAL_SECTION, r_save_ics - - /* Restore the callee-saved registers and return. */ +1: /* Restore the callee-saved registers and return. */ addli lr, sp, FRAME_SIZE { ld lr, lr @@ -177,10 +161,6 @@ STD_ENTRY(flush_and_install_context) } { ld r32, r_tmp - addli r_tmp, sp, FRAME_R33 - } - { - ld r33, r_tmp addi sp, sp, FRAME_SIZE } jrp lr |
