The patch titled
Subject: arch/avr32: add option to skip sync on DMA map
has been removed from the -mm tree. Its filename was
arch-avr32-add-option-to-skip-sync-on-dma-map.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Alexander Duyck <alexander.h.duyck@xxxxxxxxx>
Subject: arch/avr32: add option to skip sync on DMA map
The use of DMA_ATTR_SKIP_CPU_SYNC was not consistent across all of the DMA
APIs in the arch/arm folder. This change is meant to correct that so that
we get consistent behavior.
Link: http://lkml.kernel.org/r/20161110113430.76501.79737.stgit@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Alexander Duyck <alexander.h.duyck@xxxxxxxxx>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/avr32/mm/dma-coherent.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff -puN arch/avr32/mm/dma-coherent.c~arch-avr32-add-option-to-skip-sync-on-dma-map arch/avr32/mm/dma-coherent.c
--- a/arch/avr32/mm/dma-coherent.c~arch-avr32-add-option-to-skip-sync-on-dma-map
+++ a/arch/avr32/mm/dma-coherent.c
@@ -146,7 +146,8 @@ static dma_addr_t avr32_dma_map_page(str
{
void *cpu_addr = page_address(page) + offset;
- dma_cache_sync(dev, cpu_addr, size, direction);
+ if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
+ dma_cache_sync(dev, cpu_addr, size, direction);
return virt_to_bus(cpu_addr);
}
@@ -162,6 +163,10 @@ static int avr32_dma_map_sg(struct devic
sg->dma_address = page_to_bus(sg_page(sg)) + sg->offset;
virt = sg_virt(sg);
+
+ if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
+ continue;
+
dma_cache_sync(dev, virt, sg->length, direction);
}
_
Patches currently in -mm which might be from alexander.h.duyck@xxxxxxxxx are
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
