diff options
Diffstat (limited to 'target/linux/generic/patches-3.10/132-mips_inline_dma_ops.patch')
| -rw-r--r-- | target/linux/generic/patches-3.10/132-mips_inline_dma_ops.patch | 44 |
1 files changed, 15 insertions, 29 deletions
diff --git a/target/linux/generic/patches-3.10/132-mips_inline_dma_ops.patch b/target/linux/generic/patches-3.10/132-mips_inline_dma_ops.patch index bc907982e3..e31fc1901f 100644 --- a/target/linux/generic/patches-3.10/132-mips_inline_dma_ops.patch +++ b/target/linux/generic/patches-3.10/132-mips_inline_dma_ops.patch @@ -459,7 +459,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> int hw_coherentio = 0; /* Actual hardware supported DMA coherency setting. */ static int __init setcoherentio(char *str) -@@ -44,26 +44,6 @@ static int __init setnocoherentio(char * +@@ -44,13 +44,6 @@ static int __init setnocoherentio(char * early_param("nocoherentio", setnocoherentio); #endif @@ -470,23 +470,10 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> - plat_dma_addr_to_phys(dev, dma_addr) >> PAGE_SHIFT); -} - --/* -- * Warning on the terminology - Linux calls an uncached area coherent; -- * MIPS terminology calls memory areas with hardware maintained coherency -- * coherent. -- */ -- --static inline int cpu_is_noncoherent_r10000(struct device *dev) --{ -- return !plat_device_is_coherent(dev) && -- (current_cpu_type() == CPU_R10000 || -- current_cpu_type() == CPU_R12000); --} -- - static gfp_t massage_gfp_flags(const struct device *dev, gfp_t gfp) - { - gfp_t dma_flag; -@@ -119,8 +99,9 @@ void *dma_alloc_noncoherent(struct devic + /* + * The affected CPUs below in 'cpu_needs_post_dma_flush()' can + * speculatively fill random cachelines with stale data at any time, +@@ -123,8 +116,9 @@ void *dma_alloc_noncoherent(struct devic } EXPORT_SYMBOL(dma_alloc_noncoherent); @@ -498,7 +485,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> { void *ret; -@@ -144,6 +125,7 @@ static void *mips_dma_alloc_coherent(str +@@ -148,6 +142,7 @@ static void *mips_dma_alloc_coherent(str return ret; } @@ -506,7 +493,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> void dma_free_noncoherent(struct device *dev, size_t size, void *vaddr, -@@ -154,8 +136,8 @@ void dma_free_noncoherent(struct device +@@ -158,8 +153,8 @@ void dma_free_noncoherent(struct device } EXPORT_SYMBOL(dma_free_noncoherent); @@ -517,7 +504,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> { unsigned long addr = (unsigned long) vaddr; int order = get_order(size); -@@ -170,6 +152,7 @@ static void mips_dma_free_coherent(struc +@@ -174,6 +169,7 @@ static void mips_dma_free_coherent(struc free_pages(addr, get_order(size)); } @@ -525,7 +512,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> static inline void __dma_sync_virtual(void *addr, size_t size, enum dma_data_direction direction) -@@ -198,8 +181,8 @@ static inline void __dma_sync_virtual(vo +@@ -202,8 +198,8 @@ static inline void __dma_sync_virtual(vo * If highmem is not configured then the bulk of this loop gets * optimized out. */ @@ -536,15 +523,14 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> { size_t left = size; -@@ -228,109 +211,7 @@ static inline void __dma_sync(struct pag - left -= len; +@@ -233,108 +229,7 @@ static inline void __dma_sync(struct pag } while (left); } -- + -static void mips_dma_unmap_page(struct device *dev, dma_addr_t dma_addr, - size_t size, enum dma_data_direction direction, struct dma_attrs *attrs) -{ -- if (cpu_is_noncoherent_r10000(dev)) +- if (cpu_needs_post_dma_flush(dev)) - __dma_sync(dma_addr_to_page(dev, dma_addr), - dma_addr & ~PAGE_MASK, size, direction); - @@ -595,7 +581,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> -static void mips_dma_sync_single_for_cpu(struct device *dev, - dma_addr_t dma_handle, size_t size, enum dma_data_direction direction) -{ -- if (cpu_is_noncoherent_r10000(dev)) +- if (cpu_needs_post_dma_flush(dev)) - __dma_sync(dma_addr_to_page(dev, dma_handle), - dma_handle & ~PAGE_MASK, size, direction); -} @@ -615,7 +601,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> - - /* Make sure that gcc doesn't leave the empty loop body. */ - for (i = 0; i < nelems; i++, sg++) { -- if (cpu_is_noncoherent_r10000(dev)) +- if (cpu_needs_post_dma_flush(dev)) - __dma_sync(sg_page(sg), sg->offset, sg->length, - direction); - } @@ -647,7 +633,7 @@ Signed-off-by: Felix Fietkau <nbd@openwrt.org> void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction) -@@ -343,23 +224,10 @@ void dma_cache_sync(struct device *dev, +@@ -347,23 +242,10 @@ void dma_cache_sync(struct device *dev, EXPORT_SYMBOL(dma_cache_sync); |