kernel: update 3.10 to 3.10.26

[openwrt/svn-archive/archive.git] / target / linux / generic / patches-3.10 / 132-mips_inline_dma_ops.patch

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 bc907982e34ad20cf52c8a3818a4032ed0477eee..e31fc1901fceb8e3130a577a8a7b2e76ceee45bb 100644 (file)
--- 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);