From 843aef4930b9953c9ca624a990b201440304b56f Mon Sep 17 00:00:00 2001 From: David Daney Date: Thu, 11 Dec 2008 15:33:36 -0800 Subject: [PATCH] MIPS: Adjust the dma-common.c platform hooks. We add a dev parameter to plat_unmap_dma_mem(), and hooks for plat_dma_supported() and plat_extra_sync_for_device() which should be nop changes for all existing targets. Signed-off-by: David Daney Signed-off-by: Ralf Baechle --- .../include/asm/mach-generic/dma-coherence.h | 26 ++++++++++++++++++- .../include/asm/mach-ip27/dma-coherence.h | 26 ++++++++++++++++++- .../include/asm/mach-ip32/dma-coherence.h | 26 ++++++++++++++++++- .../include/asm/mach-jazz/dma-coherence.h | 26 ++++++++++++++++++- .../include/asm/mach-lemote/dma-coherence.h | 26 ++++++++++++++++++- arch/mips/mm/dma-default.c | 25 +++++++----------- 6 files changed, 135 insertions(+), 20 deletions(-) diff --git a/arch/mips/include/asm/mach-generic/dma-coherence.h b/arch/mips/include/asm/mach-generic/dma-coherence.h index 76e04e7feb84..36c611b6c597 100644 --- a/arch/mips/include/asm/mach-generic/dma-coherence.h +++ b/arch/mips/include/asm/mach-generic/dma-coherence.h @@ -28,10 +28,34 @@ static inline unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr) return dma_addr; } -static inline void plat_unmap_dma_mem(dma_addr_t dma_addr) +static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr) { } +static inline int plat_dma_supported(struct device *dev, u64 mask) +{ + /* + * we fall back to GFP_DMA when the mask isn't all 1s, + * so we can't guarantee allocations that must be + * within a tighter range than GFP_DMA.. + */ + if (mask < DMA_BIT_MASK(24)) + return 0; + + return 1; +} + +static inline void plat_extra_sync_for_device(struct device *dev) +{ + return; +} + +static inline int plat_dma_mapping_error(struct device *dev, + dma_addr_t dma_addr) +{ + return 0; +} + static inline int plat_device_is_coherent(struct device *dev) { #ifdef CONFIG_DMA_COHERENT diff --git a/arch/mips/include/asm/mach-ip27/dma-coherence.h b/arch/mips/include/asm/mach-ip27/dma-coherence.h index ed7e6222dc15..4c21bfca10c3 100644 --- a/arch/mips/include/asm/mach-ip27/dma-coherence.h +++ b/arch/mips/include/asm/mach-ip27/dma-coherence.h @@ -38,10 +38,34 @@ static unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr) return dma_addr & ~(0xffUL << 56); } -static inline void plat_unmap_dma_mem(dma_addr_t dma_addr) +static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr) { } +static inline int plat_dma_supported(struct device *dev, u64 mask) +{ + /* + * we fall back to GFP_DMA when the mask isn't all 1s, + * so we can't guarantee allocations that must be + * within a tighter range than GFP_DMA.. + */ + if (mask < DMA_BIT_MASK(24)) + return 0; + + return 1; +} + +static inline void plat_extra_sync_for_device(struct device *dev) +{ + return; +} + +static inline int plat_dma_mapping_error(struct device *dev, + dma_addr_t dma_addr) +{ + return 0; +} + static inline int plat_device_is_coherent(struct device *dev) { return 1; /* IP27 non-cohernet mode is unsupported */ diff --git a/arch/mips/include/asm/mach-ip32/dma-coherence.h b/arch/mips/include/asm/mach-ip32/dma-coherence.h index a5511ebb2d53..7ae40f4b1c80 100644 --- a/arch/mips/include/asm/mach-ip32/dma-coherence.h +++ b/arch/mips/include/asm/mach-ip32/dma-coherence.h @@ -60,10 +60,34 @@ static unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr) return addr; } -static inline void plat_unmap_dma_mem(dma_addr_t dma_addr) +static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr) { } +static inline int plat_dma_supported(struct device *dev, u64 mask) +{ + /* + * we fall back to GFP_DMA when the mask isn't all 1s, + * so we can't guarantee allocations that must be + * within a tighter range than GFP_DMA.. + */ + if (mask < DMA_BIT_MASK(24)) + return 0; + + return 1; +} + +static inline void plat_extra_sync_for_device(struct device *dev) +{ + return; +} + +static inline int plat_dma_mapping_error(struct device *dev, + dma_addr_t dma_addr) +{ + return 0; +} + static inline int plat_device_is_coherent(struct device *dev) { return 0; /* IP32 is non-cohernet */ diff --git a/arch/mips/include/asm/mach-jazz/dma-coherence.h b/arch/mips/include/asm/mach-jazz/dma-coherence.h index d66979a124a8..1c7cd27efa7b 100644 --- a/arch/mips/include/asm/mach-jazz/dma-coherence.h +++ b/arch/mips/include/asm/mach-jazz/dma-coherence.h @@ -27,11 +27,35 @@ static unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr) return vdma_log2phys(dma_addr); } -static void plat_unmap_dma_mem(dma_addr_t dma_addr) +static void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr) { vdma_free(dma_addr); } +static inline int plat_dma_supported(struct device *dev, u64 mask) +{ + /* + * we fall back to GFP_DMA when the mask isn't all 1s, + * so we can't guarantee allocations that must be + * within a tighter range than GFP_DMA.. + */ + if (mask < DMA_BIT_MASK(24)) + return 0; + + return 1; +} + +static inline void plat_extra_sync_for_device(struct device *dev) +{ + return; +} + +static inline int plat_dma_mapping_error(struct device *dev, + dma_addr_t dma_addr) +{ + return 0; +} + static inline int plat_device_is_coherent(struct device *dev) { return 0; diff --git a/arch/mips/include/asm/mach-lemote/dma-coherence.h b/arch/mips/include/asm/mach-lemote/dma-coherence.h index 7e914777ebc4..38fad7dfe7da 100644 --- a/arch/mips/include/asm/mach-lemote/dma-coherence.h +++ b/arch/mips/include/asm/mach-lemote/dma-coherence.h @@ -30,10 +30,34 @@ static inline unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr) return dma_addr & 0x7fffffff; } -static inline void plat_unmap_dma_mem(dma_addr_t dma_addr) +static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr) { } +static inline int plat_dma_supported(struct device *dev, u64 mask) +{ + /* + * we fall back to GFP_DMA when the mask isn't all 1s, + * so we can't guarantee allocations that must be + * within a tighter range than GFP_DMA.. + */ + if (mask < DMA_BIT_MASK(24)) + return 0; + + return 1; +} + +static inline void plat_extra_sync_for_device(struct device *dev) +{ + return; +} + +static inline int plat_dma_mapping_error(struct device *dev, + dma_addr_t dma_addr) +{ + return 0; +} + static inline int plat_device_is_coherent(struct device *dev) { return 0; diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c index e6708b3ad343..546e6977d4ff 100644 --- a/arch/mips/mm/dma-default.c +++ b/arch/mips/mm/dma-default.c @@ -111,7 +111,7 @@ EXPORT_SYMBOL(dma_alloc_coherent); void dma_free_noncoherent(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle) { - plat_unmap_dma_mem(dma_handle); + plat_unmap_dma_mem(dev, dma_handle); free_pages((unsigned long) vaddr, get_order(size)); } @@ -122,7 +122,7 @@ void dma_free_coherent(struct device *dev, size_t size, void *vaddr, { unsigned long addr = (unsigned long) vaddr; - plat_unmap_dma_mem(dma_handle); + plat_unmap_dma_mem(dev, dma_handle); if (!plat_device_is_coherent(dev)) addr = CAC_ADDR(addr); @@ -173,7 +173,7 @@ void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, __dma_sync(dma_addr_to_virt(dma_addr), size, direction); - plat_unmap_dma_mem(dma_addr); + plat_unmap_dma_mem(dev, dma_addr); } EXPORT_SYMBOL(dma_unmap_single); @@ -229,7 +229,7 @@ void dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size, dma_cache_wback_inv(addr, size); } - plat_unmap_dma_mem(dma_address); + plat_unmap_dma_mem(dev, dma_address); } EXPORT_SYMBOL(dma_unmap_page); @@ -249,7 +249,7 @@ void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries, if (addr) __dma_sync(addr, sg->length, direction); } - plat_unmap_dma_mem(sg->dma_address); + plat_unmap_dma_mem(dev, sg->dma_address); } } @@ -275,6 +275,7 @@ void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, { BUG_ON(direction == DMA_NONE); + plat_extra_sync_for_device(dev); if (!plat_device_is_coherent(dev)) { unsigned long addr; @@ -305,6 +306,7 @@ void dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle, { BUG_ON(direction == DMA_NONE); + plat_extra_sync_for_device(dev); if (!plat_device_is_coherent(dev)) { unsigned long addr; @@ -351,22 +353,14 @@ EXPORT_SYMBOL(dma_sync_sg_for_device); int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { - return 0; + return plat_dma_mapping_error(dev, dma_addr); } EXPORT_SYMBOL(dma_mapping_error); int dma_supported(struct device *dev, u64 mask) { - /* - * we fall back to GFP_DMA when the mask isn't all 1s, - * so we can't guarantee allocations that must be - * within a tighter range than GFP_DMA.. - */ - if (mask < DMA_BIT_MASK(24)) - return 0; - - return 1; + return plat_dma_supported(dev, mask); } EXPORT_SYMBOL(dma_supported); @@ -383,6 +377,7 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size, { BUG_ON(direction == DMA_NONE); + plat_extra_sync_for_device(dev); if (!plat_device_is_coherent(dev)) __dma_sync((unsigned long)vaddr, size, direction); } -- 2.30.2