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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-01-04 15:41:29 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-01-04 15:41:29 +0100 |
| commit | 333c9624b728a9e83b741ea75836aa114ec35272 (patch) | |
| tree | 607fa3d2d2aa3d2cc3e4c4ebacdf8e7d7b59c565 | |
| parent | [ARM] Remove unused dma.c files (diff) | |
| download | linux-333c9624b728a9e83b741ea75836aa114ec35272.tar.xz linux-333c9624b728a9e83b741ea75836aa114ec35272.zip | |
[ARM] Move ISA DMA bus_to_virt() out of set_dma_addr()
Allow the compiler to optimise the bus_to_virt(virt_to_bus())
transformation in the ARM ISA DMA interface.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/kernel/dma.c | 8 | ||||
| -rw-r--r-- | include/asm-arm/dma.h | 4 |
2 files changed, 7 insertions, 5 deletions
diff --git a/arch/arm/kernel/dma.c b/arch/arm/kernel/dma.c index 8d6381cd8915..3aedada71046 100644 --- a/arch/arm/kernel/dma.c +++ b/arch/arm/kernel/dma.c @@ -131,7 +131,7 @@ void set_dma_sg (dmach_t channel, struct scatterlist *sg, int nr_sg) * * Copy address to the structure, and set the invalid bit */ -void set_dma_addr (dmach_t channel, unsigned long physaddr) +void __set_dma_addr (dmach_t channel, void *addr) { dma_t *dma = dma_chan + channel; @@ -141,7 +141,7 @@ void set_dma_addr (dmach_t channel, unsigned long physaddr) dma->sg = &dma->buf; dma->sgcount = 1; - dma->buf.__address = bus_to_virt(physaddr); + dma->buf.__address = addr; dma->using_sg = 0; dma->invalid = 1; } @@ -278,7 +278,7 @@ GLOBAL_ALIAS(get_dma_list, get_dma_residue); GLOBAL_ALIAS(set_dma_mode, get_dma_residue); GLOBAL_ALIAS(set_dma_page, get_dma_residue); GLOBAL_ALIAS(set_dma_count, get_dma_residue); -GLOBAL_ALIAS(set_dma_addr, get_dma_residue); +GLOBAL_ALIAS(__set_dma_addr, get_dma_residue); GLOBAL_ALIAS(set_dma_sg, get_dma_residue); GLOBAL_ALIAS(set_dma_speed, get_dma_residue); GLOBAL_ALIAS(init_dma, get_dma_residue); @@ -289,7 +289,7 @@ EXPORT_SYMBOL(request_dma); EXPORT_SYMBOL(free_dma); EXPORT_SYMBOL(enable_dma); EXPORT_SYMBOL(disable_dma); -EXPORT_SYMBOL(set_dma_addr); +EXPORT_SYMBOL(__set_dma_addr); EXPORT_SYMBOL(set_dma_count); EXPORT_SYMBOL(set_dma_mode); EXPORT_SYMBOL(set_dma_page); diff --git a/include/asm-arm/dma.h b/include/asm-arm/dma.h index ef41df43a584..1c7087f9364c 100644 --- a/include/asm-arm/dma.h +++ b/include/asm-arm/dma.h @@ -91,7 +91,9 @@ extern void set_dma_sg(dmach_t channel, struct scatterlist *sg, int nr_sg); * especially since some DMA architectures don't update the * DMA address immediately, but defer it to the enable_dma(). */ -extern void set_dma_addr(dmach_t channel, unsigned long physaddr); +extern void __set_dma_addr(dmach_t channel, void *addr); +#define set_dma_addr(channel, addr) \ + __set_dma_addr(channel, bus_to_virt(addr)) /* Set the DMA byte count for this channel * |