1 files changed, 0 insertions, 56 deletions
diff --git a/target/linux/oxnas/patches-4.1/010-arm_introduce-dma-fiq-irq-broadcast.patch b/target/linux/oxnas/patches-4.1/010-arm_introduce-dma-fiq-irq-broadcast.patch
deleted file mode 100644
index 65ef6bc5e6..0000000000
--- a/target/linux/oxnas/patches-4.1/010-arm_introduce-dma-fiq-irq-broadcast.patch
+++ /dev/null
@@ -1,56 +0,0 @@
---- a/arch/arm/include/asm/glue-cache.h
-+++ b/arch/arm/include/asm/glue-cache.h
-@@ -156,11 +156,19 @@ static inline void nop_dma_unmap_area(co
- #define __cpuc_flush_user_range		__glue(_CACHE,_flush_user_cache_range)
- #define __cpuc_coherent_kern_range	__glue(_CACHE,_coherent_kern_range)
- #define __cpuc_coherent_user_range	__glue(_CACHE,_coherent_user_range)
-+#ifndef CONFIG_DMA_CACHE_FIQ_BROADCAST
- #define __cpuc_flush_dcache_area	__glue(_CACHE,_flush_kern_dcache_area)
- 
- #define dmac_map_area			__glue(_CACHE,_dma_map_area)
- #define dmac_unmap_area			__glue(_CACHE,_dma_unmap_area)
- #define dmac_flush_range		__glue(_CACHE,_dma_flush_range)
-+#else
-+#define __cpuc_flush_dcache_area	__glue(fiq,_flush_kern_dcache_area)
-+
-+#define dmac_map_area			__glue(fiq,_dma_map_area)
-+#define dmac_unmap_area			__glue(fiq,_dma_unmap_area)
-+#define dmac_flush_range		__glue(fiq,_dma_flush_range)
-+#endif /* CONFIG_DMA_CACHE_FIQ_BROADCAST */
- #endif
- 
- #endif
---- a/arch/arm/mm/Kconfig
-+++ b/arch/arm/mm/Kconfig
-@@ -858,6 +858,17 @@ config DMA_CACHE_RWFO
- 	  in hardware, other workarounds are needed (e.g. cache
- 	  maintenance broadcasting in software via FIQ).
- 
-+config DMA_CACHE_FIQ_BROADCAST
-+	bool "Enable fiq broadcast DMA cache maintenance"
-+	depends on CPU_V6K && SMP
-+	select FIQ
-+	help
-+	  The Snoop Control Unit on ARM11MPCore does not detect the
-+	  cache maintenance operations and the dma_{map,unmap}_area()
-+	  functions may leave stale cache entries on other CPUs. By
-+	  enabling this option, fiq broadcast in the ARMv6
-+	  DMA cache maintenance functions is performed.
-+
- config OUTER_CACHE
- 	bool
- 
---- a/arch/arm/mm/flush.c
-+++ b/arch/arm/mm/flush.c
-@@ -314,7 +314,11 @@ void flush_dcache_page(struct page *page
- 
- 	mapping = page_mapping(page);
- 
-+#ifndef CONFIG_DMA_CACHE_FIQ_BROADCAST
- 	if (!cache_ops_need_broadcast() &&
-+#else
-+	if (
-+#endif
- 	    mapping && !page_mapped(page))
- 		clear_bit(PG_dcache_clean, &page->flags);
- 	else {