diff options
Diffstat (limited to 'arch/sparc/mm/iommu.c')
| -rw-r--r-- | arch/sparc/mm/iommu.c | 38 |
1 files changed, 1 insertions, 37 deletions
diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c index c64f81e..720bea2 100644 --- a/arch/sparc/mm/iommu.c +++ b/arch/sparc/mm/iommu.c @@ -39,8 +39,6 @@ /* srmmu.c */ extern int viking_mxcc_present; -BTFIXUPDEF_CALL(void, flush_page_for_dma, unsigned long) -#define flush_page_for_dma(page) BTFIXUP_CALL(flush_page_for_dma)(page) extern int flush_page_for_dma_global; static int viking_flush; /* viking.S */ @@ -216,11 +214,6 @@ static u32 iommu_get_scsi_one(struct device *dev, char *vaddr, unsigned int len) return busa + off; } -static __u32 iommu_get_scsi_one_noflush(struct device *dev, char *vaddr, unsigned long len) -{ - return iommu_get_scsi_one(dev, vaddr, len); -} - static __u32 iommu_get_scsi_one_gflush(struct device *dev, char *vaddr, unsigned long len) { flush_page_for_dma(0); @@ -238,19 +231,6 @@ static __u32 iommu_get_scsi_one_pflush(struct device *dev, char *vaddr, unsigned return iommu_get_scsi_one(dev, vaddr, len); } -static void iommu_get_scsi_sgl_noflush(struct device *dev, struct scatterlist *sg, int sz) -{ - int n; - - while (sz != 0) { - --sz; - n = (sg->length + sg->offset + PAGE_SIZE-1) >> PAGE_SHIFT; - sg->dma_address = iommu_get_one(dev, sg_page(sg), n) + sg->offset; - sg->dma_length = sg->length; - sg = sg_next(sg); - } -} - static void iommu_get_scsi_sgl_gflush(struct device *dev, struct scatterlist *sg, int sz) { int n; @@ -426,17 +406,6 @@ static void iommu_unmap_dma_area(struct device *dev, unsigned long busa, int len } #endif -static const struct sparc32_dma_ops iommu_dma_noflush_ops = { - .get_scsi_one = iommu_get_scsi_one_noflush, - .get_scsi_sgl = iommu_get_scsi_sgl_noflush, - .release_scsi_one = iommu_release_scsi_one, - .release_scsi_sgl = iommu_release_scsi_sgl, -#ifdef CONFIG_SBUS - .map_dma_area = iommu_map_dma_area, - .unmap_dma_area = iommu_unmap_dma_area, -#endif -}; - static const struct sparc32_dma_ops iommu_dma_gflush_ops = { .get_scsi_one = iommu_get_scsi_one_gflush, .get_scsi_sgl = iommu_get_scsi_sgl_gflush, @@ -461,12 +430,7 @@ static const struct sparc32_dma_ops iommu_dma_pflush_ops = { void __init ld_mmu_iommu(void) { - viking_flush = (BTFIXUPVAL_CALL(flush_page_for_dma) == (unsigned long)viking_flush_page); - - if (!BTFIXUPVAL_CALL(flush_page_for_dma)) { - /* IO coherent chip */ - sparc32_dma_ops = &iommu_dma_noflush_ops; - } else if (flush_page_for_dma_global) { + if (flush_page_for_dma_global) { /* flush_page_for_dma flushes everything, no matter of what page is it */ sparc32_dma_ops = &iommu_dma_gflush_ops; } else { |
