--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
-@@ -1430,6 +1430,7 @@ config CPU_CAVIUM_OCTEON
+@@ -1431,6 +1431,7 @@ config CPU_CAVIUM_OCTEON
select LIBFDT
select USE_OF
select USB_EHCI_BIG_ENDIAN_MMIO
help
The Cavium Octeon processor is a highly integrated chip containing
many ethernet hardware widgets for networking tasks. The processor
-@@ -1650,6 +1651,9 @@ config SYS_HAS_CPU_XLR
+@@ -1651,6 +1652,9 @@ config SYS_HAS_CPU_XLR
config SYS_HAS_CPU_XLP
bool
#include <asm/scatterlist.h>
#include <asm/dma-coherence.h>
#include <asm/cache.h>
-@@ -10,14 +16,47 @@
- #include <dma-coherence.h>
- #endif
+@@ -12,12 +18,47 @@
+
+ extern struct dma_map_ops *mips_dma_map_ops;
--extern struct dma_map_ops *mips_dma_map_ops;
+void __dma_sync(struct page *page, unsigned long offset, size_t size,
+ enum dma_data_direction direction);
+void *mips_dma_alloc_coherent(struct device *dev, size_t size,
+ struct dma_attrs *attrs);
+void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
+ dma_addr_t dma_handle, struct dma_attrs *attrs);
-
++
static inline struct dma_map_ops *get_dma_ops(struct device *dev)
{
+#ifdef CONFIG_SYS_HAS_DMA_OPS
}
static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-@@ -30,12 +69,309 @@ static inline bool dma_capable(struct de
+@@ -30,12 +71,309 @@ static inline bool dma_capable(struct de
static inline void dma_mark_clean(void *addr, size_t size) {}
}
static inline int dma_mapping_error(struct device *dev, u64 mask)
-@@ -43,7 +379,9 @@ static inline int dma_mapping_error(stru
+@@ -43,7 +381,9 @@ static inline int dma_mapping_error(stru
struct dma_map_ops *ops = get_dma_ops(dev);
debug_dma_mapping_error(dev, mask);
}
static inline int
-@@ -69,7 +407,11 @@ static inline void *dma_alloc_attrs(stru
+@@ -69,7 +409,11 @@ static inline void *dma_alloc_attrs(stru
void *ret;
struct dma_map_ops *ops = get_dma_ops(dev);
debug_dma_alloc_coherent(dev, size, *dma_handle, ret);
-@@ -84,7 +426,10 @@ static inline void dma_free_attrs(struct
+@@ -84,7 +428,10 @@ static inline void dma_free_attrs(struct
{
struct dma_map_ops *ops = get_dma_ops(dev);
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
- 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);
{
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;
}
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);
{
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));
}
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.
*/
{
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);
-
-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);
-}
-
- /* 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);
- }
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);
projects / openwrt.git / blobdiff