diff options
author | Tejun Heo <tj@kernel.org> | 2010-04-05 11:37:28 +0900 |
---|---|---|
committer | Tejun Heo <tj@kernel.org> | 2010-04-05 11:37:28 +0900 |
commit | 336f5899d287f06d8329e208fc14ce50f7ec9698 (patch) | |
tree | 9b762d450d5eb248a6ff8317badb7e223d93ed58 /arch/sh/mm/tlb-sh4.c | |
parent | a4ab2773205e8b94c18625455f85e3b6bb9d7ad6 (diff) | |
parent | db217dece3003df0841bacf9556b5c06aa097dae (diff) | |
download | op-kernel-dev-336f5899d287f06d8329e208fc14ce50f7ec9698.zip op-kernel-dev-336f5899d287f06d8329e208fc14ce50f7ec9698.tar.gz |
Merge branch 'master' into export-slabh
Diffstat (limited to 'arch/sh/mm/tlb-sh4.c')
-rw-r--r-- | arch/sh/mm/tlb-sh4.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/sh/mm/tlb-sh4.c b/arch/sh/mm/tlb-sh4.c index ccac77f..cfdf793 100644 --- a/arch/sh/mm/tlb-sh4.c +++ b/arch/sh/mm/tlb-sh4.c @@ -80,3 +80,31 @@ void local_flush_tlb_one(unsigned long asid, unsigned long page) __raw_writel(data, addr); back_to_cached(); } + +void local_flush_tlb_all(void) +{ + unsigned long flags, status; + int i; + + /* + * Flush all the TLB. + */ + local_irq_save(flags); + jump_to_uncached(); + + status = __raw_readl(MMUCR); + status = ((status & MMUCR_URB) >> MMUCR_URB_SHIFT); + + if (status == 0) + status = MMUCR_URB_NENTRIES; + + for (i = 0; i < status; i++) + __raw_writel(0x0, MMU_UTLB_ADDRESS_ARRAY | (i << 8)); + + for (i = 0; i < 4; i++) + __raw_writel(0x0, MMU_ITLB_ADDRESS_ARRAY | (i << 8)); + + back_to_cached(); + ctrl_barrier(); + local_irq_restore(flags); +} |