diff options
author | Tony Lindgren <tony@atomide.com> | 2011-02-25 12:27:14 -0800 |
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committer | Tony Lindgren <tony@atomide.com> | 2011-02-25 12:27:14 -0800 |
commit | 02fa9f0451ac639a687bfc145eefe58703ff220e (patch) | |
tree | fe984acc78f22f6eb8fb98efaba8b1ac2f3ad8d9 /arch/microblaze/include/asm/pgtable.h | |
parent | cbc9438075ca9dee3f39a2e7310f81c304b40359 (diff) | |
parent | 51c404b2c514930e98e81e0b9294f19892a4f871 (diff) | |
download | linux-02fa9f0451ac639a687bfc145eefe58703ff220e.tar.bz2 |
Merge branch 'patches_for_2.6.38rc' of git://git.pwsan.com/linux-2.6 into devel-fixes
Diffstat (limited to 'arch/microblaze/include/asm/pgtable.h')
-rw-r--r-- | arch/microblaze/include/asm/pgtable.h | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h index b23f68075879..885574a73f01 100644 --- a/arch/microblaze/include/asm/pgtable.h +++ b/arch/microblaze/include/asm/pgtable.h @@ -411,20 +411,19 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) static inline unsigned long pte_update(pte_t *p, unsigned long clr, unsigned long set) { - unsigned long old, tmp, msr; - - __asm__ __volatile__("\ - msrclr %2, 0x2\n\ - nop\n\ - lw %0, %4, r0\n\ - andn %1, %0, %5\n\ - or %1, %1, %6\n\ - sw %1, %4, r0\n\ - mts rmsr, %2\n\ - nop" - : "=&r" (old), "=&r" (tmp), "=&r" (msr), "=m" (*p) - : "r" ((unsigned long)(p + 1) - 4), "r" (clr), "r" (set), "m" (*p) - : "cc"); + unsigned long flags, old, tmp; + + raw_local_irq_save(flags); + + __asm__ __volatile__( "lw %0, %2, r0 \n" + "andn %1, %0, %3 \n" + "or %1, %1, %4 \n" + "sw %1, %2, r0 \n" + : "=&r" (old), "=&r" (tmp) + : "r" ((unsigned long)(p + 1) - 4), "r" (clr), "r" (set) + : "cc"); + + raw_local_irq_restore(flags); return old; } |