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author | John Crispin <john@openwrt.org> | 2015-03-16 07:40:41 +0000 |
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committer | John Crispin <john@openwrt.org> | 2015-03-16 07:40:41 +0000 |
commit | 518d9fd2a0bef9b05c48cebb061b6b462961b3c7 (patch) | |
tree | ef1ba97d3cf4335a441084d2dcec23317974463e /target/linux/cns3xxx/patches-3.14/010-arm_introduce-dma-fiq-irq-broadcast.patch | |
parent | 43c66cb43416a6cac063a2b2213b79603dcc0dbf (diff) | |
download | mtk-20170518-518d9fd2a0bef9b05c48cebb061b6b462961b3c7.zip mtk-20170518-518d9fd2a0bef9b05c48cebb061b6b462961b3c7.tar.gz mtk-20170518-518d9fd2a0bef9b05c48cebb061b6b462961b3c7.tar.bz2 |
cns3xxx: drop 3.14 support
Signed-off-by: John Crispin <blogic@openwrt.org>
SVN-Revision: 44817
Diffstat (limited to 'target/linux/cns3xxx/patches-3.14/010-arm_introduce-dma-fiq-irq-broadcast.patch')
-rw-r--r-- | target/linux/cns3xxx/patches-3.14/010-arm_introduce-dma-fiq-irq-broadcast.patch | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/target/linux/cns3xxx/patches-3.14/010-arm_introduce-dma-fiq-irq-broadcast.patch b/target/linux/cns3xxx/patches-3.14/010-arm_introduce-dma-fiq-irq-broadcast.patch deleted file mode 100644 index a7cf49b..0000000 --- a/target/linux/cns3xxx/patches-3.14/010-arm_introduce-dma-fiq-irq-broadcast.patch +++ /dev/null @@ -1,64 +0,0 @@ ---- a/arch/arm/include/asm/glue-cache.h -+++ b/arch/arm/include/asm/glue-cache.h -@@ -156,11 +156,19 @@ extern 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 -@@ -844,6 +844,17 @@ 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 -@@ -281,6 +281,7 @@ void __sync_icache_dcache(pte_t pteval) - void flush_dcache_page(struct page *page) - { - struct address_space *mapping; -+ bool skip_broadcast = true; - - /* - * The zero page is never written to, so never has any dirty -@@ -291,7 +292,10 @@ void flush_dcache_page(struct page *page - - mapping = page_mapping(page); - -- if (!cache_ops_need_broadcast() && -+#ifndef CONFIG_DMA_CACHE_FIQ_BROADCAST -+ skip_broadcast = !cache_ops_need_broadcast(); -+#endif -+ if (skip_broadcast && - mapping && !page_mapped(page)) - clear_bit(PG_dcache_clean, &page->flags); - else { |