mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-26 08:51:13 +00:00
72b58f2eb1
This is the oxnas target previously developed at http://gitorious.org/openwrt-oxnas Basically, this consolidates the changes and addtionas from http://github.org/kref/linux-oxnas into a new OpenWrt hardware target 'oxnas' adding support for PLX Technology NAS7820/NAS7821/NAS7825/... formally known as Oxford Semiconductor OXE810SE/OXE815/OX820/... For now there are 4 supported boards: Cloud Engines Pogoplug V3 (without PCIe) fully supported Cloud Engines Pogoplug Pro (with PCIe) fully supported MitraStar STG-212 aka ZyXEL NSA-212, aka Medion Akoya P89625 / P89636 / P89626 / P89630, aka Medion MD 86407 / MD 86805 / MD 86517 / MD 86587 fully supported, see http://wiki.openwrt.org/toh/medion/md86587 Shuttle KD-20 partially supported (S-ATA driver lacks support for 2nd port) Signed-off-by: Daniel Golle <daniel@makrotopia.org> SVN-Revision: 43388
63 lines
2.3 KiB
Diff
63 lines
2.3 KiB
Diff
Index: linux-3.18-rc4/arch/arm/include/asm/glue-cache.h
|
|
===================================================================
|
|
--- linux-3.18-rc4.orig/arch/arm/include/asm/glue-cache.h
|
|
+++ linux-3.18-rc4/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
|
|
Index: linux-3.18-rc4/arch/arm/mm/Kconfig
|
|
===================================================================
|
|
--- linux-3.18-rc4.orig/arch/arm/mm/Kconfig
|
|
+++ linux-3.18-rc4/arch/arm/mm/Kconfig
|
|
@@ -843,6 +843,17 @@ 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
|
|
|
|
Index: linux-3.18-rc4/arch/arm/mm/flush.c
|
|
===================================================================
|
|
--- linux-3.18-rc4.orig/arch/arm/mm/flush.c
|
|
+++ linux-3.18-rc4/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 {
|