From 7cdad482974792419cfe4b0affca689170116f49 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 4 Jan 2006 15:08:30 +0000 Subject: [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 --- arch/arm/mach-rpc/dma.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) (limited to 'arch/arm/mach-rpc') 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 #include #include -#include +#include #include #include @@ -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)) { -- cgit v1.2.1