diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-04-02 07:33:38 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-04-02 07:33:38 -0700 |
commit | bc53ba2918bef821dec3528397bc49cd55291e56 (patch) | |
tree | a7293ae2e1a3d8cd073d46ec25bc42d34825fb09 /arch/sh/mm/tlb-sh3.c | |
parent | 42be79e37e264557f12860fa4cc84b4de3685954 (diff) | |
parent | be97d758e5728099e95fe229866d5c6c900d3092 (diff) |
Merge branch 'sh/for-2.6.34' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.34' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Fix up the SH-3 build for recent TLB changes.
sh: export return_address() symbol.
sh: Enable the mmu in start_secondary()
sh: Fix FDPIC binary loader
arch/sh/kernel: Use set_cpus_allowed_ptr
sh: Update ecovec_defconfig
USB gadget r8a66597-udc.c: duplicated include
sh: update the TLB replacement counter for entry wiring.
Diffstat (limited to 'arch/sh/mm/tlb-sh3.c')
-rw-r--r-- | arch/sh/mm/tlb-sh3.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/sh/mm/tlb-sh3.c b/arch/sh/mm/tlb-sh3.c index 4f5f7cbdd50..7a940dbfc2e 100644 --- a/arch/sh/mm/tlb-sh3.c +++ b/arch/sh/mm/tlb-sh3.c @@ -77,3 +77,22 @@ void local_flush_tlb_one(unsigned long asid, unsigned long page) for (i = 0; i < ways; i++) __raw_writel(data, addr + (i << 8)); } + +void local_flush_tlb_all(void) +{ + unsigned long flags, status; + + /* + * Flush all the TLB. + * + * Write to the MMU control register's bit: + * TF-bit for SH-3, TI-bit for SH-4. + * It's same position, bit #2. + */ + local_irq_save(flags); + status = __raw_readl(MMUCR); + status |= 0x04; + __raw_writel(status, MMUCR); + ctrl_barrier(); + local_irq_restore(flags); +} |