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-rw-r--r--arch/powerpc/mm/tlb_nohash_low.S87
1 files changed, 82 insertions, 5 deletions
diff --git a/arch/powerpc/mm/tlb_nohash_low.S b/arch/powerpc/mm/tlb_nohash_low.S
index 3037911279b..bbdc5b577b8 100644
--- a/arch/powerpc/mm/tlb_nohash_low.S
+++ b/arch/powerpc/mm/tlb_nohash_low.S
@@ -39,7 +39,7 @@
/*
* 40x implementation needs only tlbil_va
*/
-_GLOBAL(_tlbil_va)
+_GLOBAL(__tlbil_va)
/* We run the search with interrupts disabled because we have to change
* the PID and I don't want to preempt when that happens.
*/
@@ -71,7 +71,7 @@ _GLOBAL(_tlbil_va)
* 440 implementation uses tlbsx/we for tlbil_va and a full sweep
* of the TLB for everything else.
*/
-_GLOBAL(_tlbil_va)
+_GLOBAL(__tlbil_va)
mfspr r5,SPRN_MMUCR
rlwimi r5,r4,0,24,31 /* Set TID */
@@ -124,8 +124,6 @@ _GLOBAL(_tlbil_pid)
* to have the larger code path before the _SECTION_ELSE
*/
-#define MMUCSR0_TLBFI (MMUCSR0_TLB0FI | MMUCSR0_TLB1FI | \
- MMUCSR0_TLB2FI | MMUCSR0_TLB3FI)
/*
* Flush MMU TLB on the local processor
*/
@@ -170,7 +168,7 @@ ALT_MMU_FTR_SECTION_END_IFSET(MMU_FTR_USE_TLBILX)
* Flush MMU TLB for a particular address, but only on the local processor
* (no broadcast)
*/
-_GLOBAL(_tlbil_va)
+_GLOBAL(__tlbil_va)
mfmsr r10
wrteei 0
slwi r4,r4,16
@@ -191,6 +189,85 @@ ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_USE_TLBILX)
isync
1: wrtee r10
blr
+#elif defined(CONFIG_PPC_BOOK3E)
+/*
+ * New Book3E (>= 2.06) implementation
+ *
+ * Note: We may be able to get away without the interrupt masking stuff
+ * if we save/restore MAS6 on exceptions that might modify it
+ */
+_GLOBAL(_tlbil_pid)
+ slwi r4,r3,MAS6_SPID_SHIFT
+ mfmsr r10
+ wrteei 0
+ mtspr SPRN_MAS6,r4
+ PPC_TLBILX_PID(0,0)
+ wrtee r10
+ msync
+ isync
+ blr
+
+_GLOBAL(_tlbil_pid_noind)
+ slwi r4,r3,MAS6_SPID_SHIFT
+ mfmsr r10
+ ori r4,r4,MAS6_SIND
+ wrteei 0
+ mtspr SPRN_MAS6,r4
+ PPC_TLBILX_PID(0,0)
+ wrtee r10
+ msync
+ isync
+ blr
+
+_GLOBAL(_tlbil_all)
+ PPC_TLBILX_ALL(0,0)
+ msync
+ isync
+ blr
+
+_GLOBAL(_tlbil_va)
+ mfmsr r10
+ wrteei 0
+ cmpwi cr0,r6,0
+ slwi r4,r4,MAS6_SPID_SHIFT
+ rlwimi r4,r5,MAS6_ISIZE_SHIFT,MAS6_ISIZE_MASK
+ beq 1f
+ rlwimi r4,r6,MAS6_SIND_SHIFT,MAS6_SIND
+1: mtspr SPRN_MAS6,r4 /* assume AS=0 for now */
+ PPC_TLBILX_VA(0,r3)
+ msync
+ isync
+ wrtee r10
+ blr
+
+_GLOBAL(_tlbivax_bcast)
+ mfmsr r10
+ wrteei 0
+ cmpwi cr0,r6,0
+ slwi r4,r4,MAS6_SPID_SHIFT
+ rlwimi r4,r5,MAS6_ISIZE_SHIFT,MAS6_ISIZE_MASK
+ beq 1f
+ rlwimi r4,r6,MAS6_SIND_SHIFT,MAS6_SIND
+1: mtspr SPRN_MAS6,r4 /* assume AS=0 for now */
+ PPC_TLBIVAX(0,r3)
+ eieio
+ tlbsync
+ sync
+ wrtee r10
+ blr
+
+_GLOBAL(set_context)
+#ifdef CONFIG_BDI_SWITCH
+ /* Context switch the PTE pointer for the Abatron BDI2000.
+ * The PGDIR is the second parameter.
+ */
+ lis r5, abatron_pteptrs@h
+ ori r5, r5, abatron_pteptrs@l
+ stw r4, 0x4(r5)
+#endif
+ mtspr SPRN_PID,r3
+ isync /* Force context change */
+ blr
#else
#error Unsupported processor type !
#endif