From 7feee249d47f950a19ca142660ee41fe27b04b27 Mon Sep 17 00:00:00 2001 From: Kristoffer Glembo Date: Tue, 18 Jan 2011 04:10:28 +0000 Subject: [PATCH] sparc: Make mmu_inval_dma_area take void * instead of unsigned long to minimize casts. Signed-off-by: Kristoffer Glembo Acked-by: Sam Ravnborg Signed-off-by: David S. Miller --- arch/sparc/kernel/ioport.c | 53 +++++++++++++++++++------------------- 1 file changed, 27 insertions(+), 26 deletions(-) diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 815003b5fab6..bd4fb10748b1 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -53,7 +53,7 @@ #ifndef CONFIG_SPARC_LEON #define mmu_inval_dma_area(p, l) /* Anton pulled it out for 2.4.0-xx */ #else -static inline void mmu_inval_dma_area(unsigned long va, unsigned long len) +static inline void mmu_inval_dma_area(void *va, unsigned long len) { if (!sparc_leon3_snooping_enabled()) leon_flush_dcache_all(); @@ -284,7 +284,7 @@ static void *sbus_alloc_coherent(struct device *dev, size_t len, printk("sbus_alloc_consistent: cannot occupy 0x%lx", len_total); goto err_nova; } - mmu_inval_dma_area(va, len_total); + mmu_inval_dma_area((void *)va, len_total); // XXX The mmu_map_dma_area does this for us below, see comments. // sparc_mapiorange(0, virt_to_phys(va), res->start, len_total); @@ -435,7 +435,7 @@ static void *pci32_alloc_coherent(struct device *dev, size_t len, dma_addr_t *pba, gfp_t gfp) { unsigned long len_total = PAGE_ALIGN(len); - unsigned long va; + void *va; struct resource *res; int order; @@ -447,30 +447,34 @@ static void *pci32_alloc_coherent(struct device *dev, size_t len, } order = get_order(len_total); - va = __get_free_pages(GFP_KERNEL, order); - if (va == 0) { + va = (void *) __get_free_pages(GFP_KERNEL, order); + if (va == NULL) { printk("pci_alloc_consistent: no %ld pages\n", len_total>>PAGE_SHIFT); - return NULL; + goto err_nopages; } if ((res = kzalloc(sizeof(struct resource), GFP_KERNEL)) == NULL) { - free_pages(va, order); printk("pci_alloc_consistent: no core\n"); - return NULL; + goto err_nomem; } if (allocate_resource(&_sparc_dvma, res, len_total, _sparc_dvma.start, _sparc_dvma.end, PAGE_SIZE, NULL, NULL) != 0) { printk("pci_alloc_consistent: cannot occupy 0x%lx", len_total); - free_pages(va, order); - kfree(res); - return NULL; + goto err_nova; } mmu_inval_dma_area(va, len_total); sparc_mapiorange(0, virt_to_phys(va), res->start, len_total); *pba = virt_to_phys(va); /* equals virt_to_bus (R.I.P.) for us. */ return (void *) res->start; + +err_nova: + kfree(res); +err_nomem: + free_pages((unsigned long)va, order); +err_nopages: + return NULL; } /* Free and unmap a consistent DMA buffer. @@ -485,7 +489,7 @@ static void pci32_free_coherent(struct device *dev, size_t n, void *p, dma_addr_t ba) { struct resource *res; - unsigned long pgp; + void *pgp; if ((res = _sparc_find_resource(&_sparc_dvma, (unsigned long)p)) == NULL) { @@ -505,14 +509,14 @@ static void pci32_free_coherent(struct device *dev, size_t n, void *p, return; } - pgp = (unsigned long) phys_to_virt(ba); /* bus_to_virt actually */ + pgp = phys_to_virt(ba); /* bus_to_virt actually */ mmu_inval_dma_area(pgp, n); sparc_unmapiorange((unsigned long)p, n); release_resource(res); kfree(res); - free_pages(pgp, get_order(n)); + free_pages((unsigned long)pgp, get_order(n)); } /* @@ -531,7 +535,7 @@ static void pci32_unmap_page(struct device *dev, dma_addr_t ba, size_t size, enum dma_data_direction dir, struct dma_attrs *attrs) { if (dir != PCI_DMA_TODEVICE) - mmu_inval_dma_area((unsigned long)phys_to_virt(ba), PAGE_ALIGN(size)); + mmu_inval_dma_area(phys_to_virt(ba), PAGE_ALIGN(size)); } /* Map a set of buffers described by scatterlist in streaming @@ -579,9 +583,8 @@ static void pci32_unmap_sg(struct device *dev, struct scatterlist *sgl, if (dir != PCI_DMA_TODEVICE) { for_each_sg(sgl, sg, nents, n) { BUG_ON(page_address(sg_page(sg)) == NULL); - mmu_inval_dma_area( - (unsigned long) page_address(sg_page(sg)), - PAGE_ALIGN(sg->length)); + mmu_inval_dma_area(page_address(sg_page(sg)), + PAGE_ALIGN(sg->length)); } } } @@ -600,7 +603,7 @@ static void pci32_sync_single_for_cpu(struct device *dev, dma_addr_t ba, size_t size, enum dma_data_direction dir) { if (dir != PCI_DMA_TODEVICE) { - mmu_inval_dma_area((unsigned long)phys_to_virt(ba), + mmu_inval_dma_area(phys_to_virt(ba), PAGE_ALIGN(size)); } } @@ -609,7 +612,7 @@ static void pci32_sync_single_for_device(struct device *dev, dma_addr_t ba, size_t size, enum dma_data_direction dir) { if (dir != PCI_DMA_TODEVICE) { - mmu_inval_dma_area((unsigned long)phys_to_virt(ba), + mmu_inval_dma_area(phys_to_virt(ba), PAGE_ALIGN(size)); } } @@ -629,9 +632,8 @@ static void pci32_sync_sg_for_cpu(struct device *dev, struct scatterlist *sgl, if (dir != PCI_DMA_TODEVICE) { for_each_sg(sgl, sg, nents, n) { BUG_ON(page_address(sg_page(sg)) == NULL); - mmu_inval_dma_area( - (unsigned long) page_address(sg_page(sg)), - PAGE_ALIGN(sg->length)); + mmu_inval_dma_area(page_address(sg_page(sg)), + PAGE_ALIGN(sg->length)); } } } @@ -645,9 +647,8 @@ static void pci32_sync_sg_for_device(struct device *device, struct scatterlist * if (dir != PCI_DMA_TODEVICE) { for_each_sg(sgl, sg, nents, n) { BUG_ON(page_address(sg_page(sg)) == NULL); - mmu_inval_dma_area( - (unsigned long) page_address(sg_page(sg)), - PAGE_ALIGN(sg->length)); + mmu_inval_dma_area(page_address(sg_page(sg)), + PAGE_ALIGN(sg->length)); } } } -- 2.30.2