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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-01-04 16:08:30 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-01-04 16:08:30 +0100 |
| commit | 7cdad482974792419cfe4b0affca689170116f49 (patch) | |
| tree | f9ee204f8848274ffb3323f425ad039cf4807de6 /arch/arm/mach-rpc/dma.c | |
| parent | [ARM] Move ISA DMA bus_to_virt() out of set_dma_addr() (diff) | |
| download | linux-7cdad482974792419cfe4b0affca689170116f49.tar.xz linux-7cdad482974792419cfe4b0affca689170116f49.zip | |
[ARM] Remove '__address' from scatterlist and convert to DMA API
The old __address element in struct scatterlist remained from older
kernels because the ARM DMA emulation code made use of it. Move
this field into struct dma_struct, and convert DMA emulation code
to setup a SG entry as required.
Also, convert DMA emulation code to use the new DMA API rather
than the PCI DMA API.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-rpc/dma.c')
| -rw-r--r-- | arch/arm/mach-rpc/dma.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/arch/arm/mach-rpc/dma.c b/arch/arm/mach-rpc/dma.c index bc0747439fb3..bd86ffba8810 100644 --- a/arch/arm/mach-rpc/dma.c +++ b/arch/arm/mach-rpc/dma.c @@ -13,7 +13,7 @@ #include <linux/mman.h> #include <linux/init.h> #include <linux/interrupt.h> -#include <linux/pci.h> +#include <linux/dma-mapping.h> #include <asm/page.h> #include <asm/dma.h> @@ -148,11 +148,14 @@ static void iomd_enable_dma(dmach_t channel, dma_t *dma) * Cope with ISA-style drivers which expect cache * coherence. */ - if (!dma->using_sg) { - dma->buf.dma_address = pci_map_single(NULL, - dma->buf.__address, dma->buf.length, + if (!dma->sg) { + dma->sg = &dma->buf; + dma->sgcount = 1; + dma->buf.length = dma->count; + dma->buf.dma_address = dma_map_single(NULL, + dma->addr, dma->count, dma->dma_mode == DMA_MODE_READ ? - PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE); + DMA_FROM_DEVICE : DMA_TO_DEVICE); } iomd_writeb(DMA_CR_C, dma_base + CR); @@ -239,7 +242,7 @@ static void floppy_enable_dma(dmach_t channel, dma_t *dma) unsigned int fiqhandler_length; struct pt_regs regs; - if (dma->using_sg) + if (dma->sg) BUG(); if (dma->dma_mode == DMA_MODE_READ) { @@ -252,8 +255,8 @@ static void floppy_enable_dma(dmach_t channel, dma_t *dma) fiqhandler_length = &floppy_fiqout_end - &floppy_fiqout_start; } - regs.ARM_r9 = dma->buf.length; - regs.ARM_r10 = (unsigned long)dma->buf.__address; + regs.ARM_r9 = dma->count; + regs.ARM_r10 = (unsigned long)dma->addr; regs.ARM_fp = (unsigned long)FLOPPYDMA_BASE; if (claim_fiq(&fh)) { |