diff options
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/misc_32.S | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 2c2ab89f0b6..ae0d084b6a2 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -272,239 +272,6 @@ _GLOBAL(real_writeb) #endif /* CONFIG_40x */ -/* - * Flush MMU TLB - */ -#ifndef CONFIG_FSL_BOOKE -_GLOBAL(_tlbil_all) -_GLOBAL(_tlbil_pid) -#endif -_GLOBAL(_tlbia) -#if defined(CONFIG_40x) - sync /* Flush to memory before changing mapping */ - tlbia - isync /* Flush shadow TLB */ -#elif defined(CONFIG_44x) - li r3,0 - sync - - /* Load high watermark */ - lis r4,tlb_44x_hwater@ha - lwz r5,tlb_44x_hwater@l(r4) - -1: tlbwe r3,r3,PPC44x_TLB_PAGEID - addi r3,r3,1 - cmpw 0,r3,r5 - ble 1b - - isync -#elif defined(CONFIG_FSL_BOOKE) - /* Invalidate all entries in TLB0 */ - li r3, 0x04 - tlbivax 0,3 - /* Invalidate all entries in TLB1 */ - li r3, 0x0c - tlbivax 0,3 - msync -#ifdef CONFIG_SMP - tlbsync -#endif /* CONFIG_SMP */ -#else /* !(CONFIG_40x || CONFIG_44x || CONFIG_FSL_BOOKE) */ -#if defined(CONFIG_SMP) - rlwinm r8,r1,0,0,(31-THREAD_SHIFT) - lwz r8,TI_CPU(r8) - oris r8,r8,10 - mfmsr r10 - SYNC - rlwinm r0,r10,0,17,15 /* clear bit 16 (MSR_EE) */ - rlwinm r0,r0,0,28,26 /* clear DR */ - mtmsr r0 - SYNC_601 - isync - lis r9,mmu_hash_lock@h - ori r9,r9,mmu_hash_lock@l - tophys(r9,r9) -10: lwarx r7,0,r9 - cmpwi 0,r7,0 - bne- 10b - stwcx. r8,0,r9 - bne- 10b - sync - tlbia - sync - TLBSYNC - li r0,0 - stw r0,0(r9) /* clear mmu_hash_lock */ - mtmsr r10 - SYNC_601 - isync -#else /* CONFIG_SMP */ - sync - tlbia - sync -#endif /* CONFIG_SMP */ -#endif /* ! defined(CONFIG_40x) */ - blr - -/* - * Flush MMU TLB for a particular address - */ -#ifndef CONFIG_FSL_BOOKE -_GLOBAL(_tlbil_va) -#endif -_GLOBAL(_tlbie) -#if defined(CONFIG_40x) - /* We run the search with interrupts disabled because we have to change - * the PID and I don't want to preempt when that happens. - */ - mfmsr r5 - mfspr r6,SPRN_PID - wrteei 0 - mtspr SPRN_PID,r4 - tlbsx. r3, 0, r3 - mtspr SPRN_PID,r6 - wrtee r5 - bne 10f - sync - /* There are only 64 TLB entries, so r3 < 64, which means bit 25 is clear. - * Since 25 is the V bit in the TLB_TAG, loading this value will invalidate - * the TLB entry. */ - tlbwe r3, r3, TLB_TAG - isync -10: - -#elif defined(CONFIG_44x) - mfspr r5,SPRN_MMUCR - rlwimi r5,r4,0,24,31 /* Set TID */ - - /* We have to run the search with interrupts disabled, even critical - * and debug interrupts (in fact the only critical exceptions we have - * are debug and machine check). Otherwise an interrupt which causes - * a TLB miss can clobber the MMUCR between the mtspr and the tlbsx. */ - mfmsr r4 - lis r6,(MSR_EE|MSR_CE|MSR_ME|MSR_DE)@ha - addi r6,r6,(MSR_EE|MSR_CE|MSR_ME|MSR_DE)@l - andc r6,r4,r6 - mtmsr r6 - mtspr SPRN_MMUCR,r5 - tlbsx. r3, 0, r3 - mtmsr r4 - bne 10f - sync - /* There are only 64 TLB entries, so r3 < 64, - * which means bit 22, is clear. Since 22 is - * the V bit in the TLB_PAGEID, loading this - * value will invalidate the TLB entry. - */ - tlbwe r3, r3, PPC44x_TLB_PAGEID - isync -10: -#elif defined(CONFIG_FSL_BOOKE) - rlwinm r4, r3, 0, 0, 19 - ori r5, r4, 0x08 /* TLBSEL = 1 */ - tlbivax 0, r4 - tlbivax 0, r5 - msync -#if defined(CONFIG_SMP) - tlbsync -#endif /* CONFIG_SMP */ -#else /* !(CONFIG_40x || CONFIG_44x || CONFIG_FSL_BOOKE) */ -#if defined(CONFIG_SMP) - rlwinm r8,r1,0,0,(31-THREAD_SHIFT) - lwz r8,TI_CPU(r8) - oris r8,r8,11 - mfmsr r10 - SYNC - rlwinm r0,r10,0,17,15 /* clear bit 16 (MSR_EE) */ - rlwinm r0,r0,0,28,26 /* clear DR */ - mtmsr r0 - SYNC_601 - isync - lis r9,mmu_hash_lock@h - ori r9,r9,mmu_hash_lock@l - tophys(r9,r9) -10: lwarx r7,0,r9 - cmpwi 0,r7,0 - bne- 10b - stwcx. r8,0,r9 - bne- 10b - eieio - tlbie r3 - sync - TLBSYNC - li r0,0 - stw r0,0(r9) /* clear mmu_hash_lock */ - mtmsr r10 - SYNC_601 - isync -#else /* CONFIG_SMP */ - tlbie r3 - sync -#endif /* CONFIG_SMP */ -#endif /* ! CONFIG_40x */ - blr - -#if defined(CONFIG_FSL_BOOKE) -/* - * Flush MMU TLB, but only on the local processor (no broadcast) - */ -_GLOBAL(_tlbil_all) -#define MMUCSR0_TLBFI (MMUCSR0_TLB0FI | MMUCSR0_TLB1FI | \ - MMUCSR0_TLB2FI | MMUCSR0_TLB3FI) - li r3,(MMUCSR0_TLBFI)@l - mtspr SPRN_MMUCSR0, r3 -1: - mfspr r3,SPRN_MMUCSR0 - andi. r3,r3,MMUCSR0_TLBFI@l - bne 1b - blr - -/* - * Flush MMU TLB for a particular process id, but only on the local processor - * (no broadcast) - */ -_GLOBAL(_tlbil_pid) -/* we currently do an invalidate all since we don't have per pid invalidate */ - li r3,(MMUCSR0_TLBFI)@l - mtspr SPRN_MMUCSR0, r3 -1: - mfspr r3,SPRN_MMUCSR0 - andi. r3,r3,MMUCSR0_TLBFI@l - bne 1b - msync - isync - blr - -/* - * Flush MMU TLB for a particular address, but only on the local processor - * (no broadcast) - */ -_GLOBAL(_tlbil_va) - mfmsr r10 - wrteei 0 - slwi r4,r4,16 - mtspr SPRN_MAS6,r4 /* assume AS=0 for now */ - tlbsx 0,r3 - mfspr r4,SPRN_MAS1 /* check valid */ - andis. r3,r4,MAS1_VALID@h - beq 1f - rlwinm r4,r4,0,1,31 - mtspr SPRN_MAS1,r4 - tlbwe - msync - isync -1: wrtee r10 - blr -#endif /* CONFIG_FSL_BOOKE */ - -/* - * Nobody implements this yet - */ -_GLOBAL(_tlbivax_bcast) -1: trap - EMIT_BUG_ENTRY 1b,__FILE__,__LINE__,0; - blr - /* * Flush instruction cache. |