From 4b1c5df2af38b2681b7c1a058534d17c54aaf6cf Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 27 Aug 2008 18:40:38 -0700 Subject: sparc32: Make mmu_map_dma_area and mmu_unmap_dma_area take a device pointer. This lets us kill this "map it in every IOMMU" crazy code, and also some of the final references to sbus_root. Signed-off-by: David S. Miller --- arch/sparc/mm/io-unit.c | 14 +++++--------- arch/sparc/mm/iommu.c | 10 +++++----- arch/sparc/mm/sun4c.c | 6 +++--- 3 files changed, 13 insertions(+), 17 deletions(-) (limited to 'arch/sparc/mm') diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c index 6b469820fb92..0f97ab30df3f 100644 --- a/arch/sparc/mm/io-unit.c +++ b/arch/sparc/mm/io-unit.c @@ -186,12 +186,12 @@ static void iounit_release_scsi_sgl(struct device *dev, struct scatterlist *sg, } #ifdef CONFIG_SBUS -static int iounit_map_dma_area(dma_addr_t *pba, unsigned long va, __u32 addr, int len) +static int iounit_map_dma_area(struct device *dev, dma_addr_t *pba, unsigned long va, __u32 addr, int len) { + struct iounit_struct *iounit = dev->archdata.iommu; unsigned long page, end; pgprot_t dvma_prot; iopte_t *iopte; - struct sbus_bus *sbus; *pba = addr; @@ -213,12 +213,8 @@ static int iounit_map_dma_area(dma_addr_t *pba, unsigned long va, __u32 addr, in i = ((addr - IOUNIT_DMA_BASE) >> PAGE_SHIFT); - for_each_sbus(sbus) { - struct iounit_struct *iounit = sbus->ofdev.dev.archdata.iommu; - - iopte = (iopte_t *)(iounit->page_table + i); - *iopte = MKIOPTE(__pa(page)); - } + iopte = (iopte_t *)(iounit->page_table + i); + *iopte = MKIOPTE(__pa(page)); } addr += PAGE_SIZE; va += PAGE_SIZE; @@ -229,7 +225,7 @@ static int iounit_map_dma_area(dma_addr_t *pba, unsigned long va, __u32 addr, in return 0; } -static void iounit_unmap_dma_area(unsigned long addr, int len) +static void iounit_unmap_dma_area(struct device *dev, unsigned long addr, int len) { /* XXX Somebody please fill this in */ } diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c index 832d99f33470..2970cea877b1 100644 --- a/arch/sparc/mm/iommu.c +++ b/arch/sparc/mm/iommu.c @@ -334,11 +334,11 @@ static void iommu_release_scsi_sgl(struct device *dev, struct scatterlist *sg, i } #ifdef CONFIG_SBUS -static int iommu_map_dma_area(dma_addr_t *pba, unsigned long va, - unsigned long addr, int len) +static int iommu_map_dma_area(struct device *dev, dma_addr_t *pba, unsigned long va, + unsigned long addr, int len) { + struct iommu_struct *iommu = dev->archdata.iommu; unsigned long page, end; - struct iommu_struct *iommu = sbus_root->ofdev.dev.archdata.iommu; iopte_t *iopte = iommu->page_table; iopte_t *first; int ioptex; @@ -401,9 +401,9 @@ static int iommu_map_dma_area(dma_addr_t *pba, unsigned long va, return 0; } -static void iommu_unmap_dma_area(unsigned long busa, int len) +static void iommu_unmap_dma_area(struct device *dev, unsigned long busa, int len) { - struct iommu_struct *iommu = sbus_root->ofdev.dev.archdata.iommu; + struct iommu_struct *iommu = dev->archdata.iommu; iopte_t *iopte = iommu->page_table; unsigned long end; int ioptex = (busa - iommu->start) >> PAGE_SHIFT; diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c index 65af3119f5ac..f289e7ce902e 100644 --- a/arch/sparc/mm/sun4c.c +++ b/arch/sparc/mm/sun4c.c @@ -532,8 +532,8 @@ static inline void sun4c_init_ss2_cache_bug(void) } /* Addr is always aligned on a page boundary for us already. */ -static int sun4c_map_dma_area(dma_addr_t *pba, unsigned long va, - unsigned long addr, int len) +static int sun4c_map_dma_area(struct device *dev, dma_addr_t *pba, unsigned long va, + unsigned long addr, int len) { unsigned long page, end; @@ -555,7 +555,7 @@ static int sun4c_map_dma_area(dma_addr_t *pba, unsigned long va, return 0; } -static void sun4c_unmap_dma_area(unsigned long busa, int len) +static void sun4c_unmap_dma_area(struct device *dev, unsigned long busa, int len) { /* Fortunately for us, bus_addr == uncached_virt in sun4c. */ /* XXX Implement this */ -- cgit v1.2.1