diff options
| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-11 19:13:44 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-11 19:13:44 -0700 |
| commit | 55982fd184a065b1c69279d29cbc01dbf424d2f4 (patch) | |
| tree | 9b309cba341736a0766249ba51972a8ca040e502 /include/asm-avr32/dma-mapping.h | |
| parent | 1ef3e36251e4edc77a48967d015a87ca3c4283ea (diff) | |
| parent | a7e30b8d91d3291de4543d97849193ebc3ec4c1c (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
[AVR32] Fix random segfault with preemption
[AVR32] Don't use __builtin_xchg()
[AVR32] ngw100 i2c-gpio tweaks
[AVR32] Ignore a few irrelevant syscalls
[AVR32] SMC configuration in clock cycles
[AVR32] Drop support for redundant "keepinitrd" boot-time parm.
[AVR32] Make dma_sync_*_for_cpu no-ops
[AVR32] Remove unneeded 8K alignment of .text section
[AVR32] Kill a few hardcoded constants in vmlinux.lds
[AVR32] rename vmlinux.lds
[AVR32] fix command line parsing in early_parse_fbmem
[AVR32] checkstack support
[AVR32] Wire up USBA device
[AVR32] add multidrive support for pio driver
[AVR32] /sys/kernel/debug/at32ap_clk
[AVR32] Move AT32_PM_BASE definition into pm.h
Diffstat (limited to 'include/asm-avr32/dma-mapping.h')
| -rw-r--r-- | include/asm-avr32/dma-mapping.h | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/include/asm-avr32/dma-mapping.h b/include/asm-avr32/dma-mapping.h index 21bb60bbb9a..81e342636ac 100644 --- a/include/asm-avr32/dma-mapping.h +++ b/include/asm-avr32/dma-mapping.h @@ -264,7 +264,11 @@ static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction direction) { - dma_cache_sync(dev, bus_to_virt(dma_handle), size, direction); + /* + * No need to do anything since the CPU isn't supposed to + * touch this memory after we flushed it at mapping- or + * sync-for-device time. + */ } static inline void @@ -309,12 +313,11 @@ static inline void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction direction) { - int i; - - for (i = 0; i < nents; i++) { - dma_cache_sync(dev, page_address(sg[i].page) + sg[i].offset, - sg[i].length, direction); - } + /* + * No need to do anything since the CPU isn't supposed to + * touch this memory after we flushed it at mapping- or + * sync-for-device time. + */ } static inline void |