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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-10 14:48:43 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-10 14:48:43 -0700 |
commit | 0f166396e7e8931bb4acfd1a6ea1bd4f0b43f1dd (patch) | |
tree | 6279fa70695a4c56b7e935018a4c0fc1dfa82e68 /arch/mips/mm/tlb-r4k.c | |
parent | 5f60cfd932b42c69ed3226400cb5eab152576c3a (diff) | |
parent | 105b1bca4d7bed85bb296f7e7caec2fc643e9fbf (diff) |
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (62 commits)
[MIPS] PNX8550: Cleanup proc code.
[MIPS] WRPPMC: Fix build.
[MIPS] Yosemite: Fix modpost warnings.
[MIPS] Change names of local variables to silence sparse
[MIPS] SB1: Fix modpost warning.
[MIPS] PNX: Fix modpost warnings.
[MIPS] Alchemy: Fix modpost warnings.
[MIPS] Non-FPAFF: Fix warning.
[MIPS] DEC: Fix modpost warning.
[MIPS] MIPSsim: Enable MIPSsim virtual network driver.
[MIPS] Delete Ocelot 3 support.
[MIPS] remove LASAT Networks platforms support
[MIPS] Early check for SMTC kernel on non-MT processor
[MIPS] Add debugfs files to show fpuemu statistics
[MIPS] Add some debugfs files to debug unaligned accesses
[MIPS] rbtx4938: Fix secondary PCIC and glue internal NICs
[MIPS] tc35815: Load MAC address via platform_device
[MIPS] Move FPU affinity code into separate file.
[MIPS] Make ioremap() work on TX39/49 special unmapped segment
[MIPS] rbtx4938: Update and minimize defconfig
...
Diffstat (limited to 'arch/mips/mm/tlb-r4k.c')
-rw-r--r-- | arch/mips/mm/tlb-r4k.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c index 65160d4984d9..dcd6913dc1ff 100644 --- a/arch/mips/mm/tlb-r4k.c +++ b/arch/mips/mm/tlb-r4k.c @@ -48,6 +48,22 @@ extern void build_tlb_refill_handler(void); #endif /* CONFIG_MIPS_MT_SMTC */ +#if defined(CONFIG_CPU_LOONGSON2) +/* + * LOONGSON2 has a 4 entry itlb which is a subset of dtlb, + * unfortrunately, itlb is not totally transparent to software. + */ +#define FLUSH_ITLB write_c0_diag(4); + +#define FLUSH_ITLB_VM(vma) { if ((vma)->vm_flags & VM_EXEC) write_c0_diag(4); } + +#else + +#define FLUSH_ITLB +#define FLUSH_ITLB_VM(vma) + +#endif + void local_flush_tlb_all(void) { unsigned long flags; @@ -73,6 +89,7 @@ void local_flush_tlb_all(void) } tlbw_use_hazard(); write_c0_entryhi(old_ctx); + FLUSH_ITLB; EXIT_CRITICAL(flags); } @@ -136,6 +153,7 @@ void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, } else { drop_mmu_context(mm, cpu); } + FLUSH_ITLB; EXIT_CRITICAL(flags); } } @@ -178,6 +196,7 @@ void local_flush_tlb_kernel_range(unsigned long start, unsigned long end) } else { local_flush_tlb_all(); } + FLUSH_ITLB; EXIT_CRITICAL(flags); } @@ -210,6 +229,7 @@ void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page) finish: write_c0_entryhi(oldpid); + FLUSH_ITLB_VM(vma); EXIT_CRITICAL(flags); } } @@ -241,7 +261,7 @@ void local_flush_tlb_one(unsigned long page) tlbw_use_hazard(); } write_c0_entryhi(oldpid); - + FLUSH_ITLB; EXIT_CRITICAL(flags); } @@ -293,6 +313,7 @@ void __update_tlb(struct vm_area_struct * vma, unsigned long address, pte_t pte) else tlb_write_indexed(); tlbw_use_hazard(); + FLUSH_ITLB_VM(vma); EXIT_CRITICAL(flags); } |