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| author | Vineet Gupta <vgupta@synopsys.com> | 2015-04-06 14:52:39 +0300 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2015-06-22 11:36:55 +0300 |
| commit | d7a512bfe0be3790bae8465b4cb6c1bbca03c616 (patch) | |
| tree | fd9a859c1e104ffa9032720ffd99dac0c4213478 /arch/arc/mm/tlbex.S | |
| parent | 4de0e52867d831057676340271d21cfb920eac1c (diff) | |
| download | linux-d7a512bfe0be3790bae8465b4cb6c1bbca03c616.tar.xz | |
ARCv2: MMUv4: TLB programming Model changes
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/mm/tlbex.S')
| -rw-r--r-- | arch/arc/mm/tlbex.S | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arc/mm/tlbex.S b/arch/arc/mm/tlbex.S index 00c8d7f772bc..8624ebd7114e 100644 --- a/arch/arc/mm/tlbex.S +++ b/arch/arc/mm/tlbex.S @@ -44,6 +44,7 @@ #include <asm/processor.h> #include <asm/tlb-mmu1.h> +#ifdef CONFIG_ISA_ARCOMPACT ;----------------------------------------------------------------- ; ARC700 Exception Handling doesn't auto-switch stack and it only provides ; ONE scratch AUX reg "ARC_REG_SCRATCH_DATA0" @@ -121,6 +122,24 @@ ex_saved_reg1: #endif .endm +#else /* ARCv2 */ + +.macro TLBMISS_FREEUP_REGS + PUSH r0 + PUSH r1 + PUSH r2 + PUSH r3 +.endm + +.macro TLBMISS_RESTORE_REGS + POP r3 + POP r2 + POP r1 + POP r0 +.endm + +#endif + ;============================================================================ ; Troubleshooting Stuff ;============================================================================ @@ -239,6 +258,7 @@ ex_saved_reg1: ; Commit the TLB entry into MMU .macro COMMIT_ENTRY_TO_MMU +#if (CONFIG_ARC_MMU_VER < 4) /* Get free TLB slot: Set = computed from vaddr, way = random */ sr TLBGetIndex, [ARC_REG_TLBCOMMAND] @@ -249,6 +269,10 @@ ex_saved_reg1: #else sr TLBWrite, [ARC_REG_TLBCOMMAND] #endif + +#else + sr TLBInsertEntry, [ARC_REG_TLBCOMMAND] +#endif .endm |