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| author | Kristoffer Glembo <kristoffer@gaisler.com> | 2011-01-18 05:10:27 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-03-17 02:18:58 +0100 |
| commit | 1b19274083d67f66ce3097c8d2bebc22b7911e3f (patch) | |
| tree | 1b9abc0173ef48c160b2d47d21f2c13ba0c60dae /arch/sparc | |
| parent | sparc/leon: Add LEON dma_ops. (diff) | |
| download | linux-1b19274083d67f66ce3097c8d2bebc22b7911e3f.tar.xz linux-1b19274083d67f66ce3097c8d2bebc22b7911e3f.zip | |
sparc/leon: Make mmu_inval_dma_area flush dcache for LEONs without snooping enabled.
Signed-off-by: Kristoffer Glembo <kristoffer@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/kernel/ioport.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index b81748119cf7..815003b5fab6 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -50,10 +50,14 @@ #include <asm/io-unit.h> #include <asm/leon.h> -#ifdef CONFIG_SPARC_LEON -#define mmu_inval_dma_area(p, l) leon_flush_dcache_all() -#else +#ifndef CONFIG_SPARC_LEON #define mmu_inval_dma_area(p, l) /* Anton pulled it out for 2.4.0-xx */ +#else +static inline void mmu_inval_dma_area(unsigned long va, unsigned long len) +{ + if (!sparc_leon3_snooping_enabled()) + leon_flush_dcache_all(); +} #endif static struct resource *_sparc_find_resource(struct resource *r, |