brcm47xx: rename target to bcm47xx

[openwrt/staging/chunkeey.git] / target / linux / brcm47xx / patches-4.14 / 160-kmap_coherent.patch

diff --git a/target/linux/brcm47xx/patches-4.14/160-kmap_coherent.patch b/target/linux/brcm47xx/patches-4.14/160-kmap_coherent.patch
deleted file mode 100644 (file)
index 5cdb545..0000000
--- a/target/linux/brcm47xx/patches-4.14/160-kmap_coherent.patch
+++ /dev/null
@@ -1,78 +0,0 @@
-From: Jeff Hansen <jhansen@cardaccess-inc.com>
-Subject: [PATCH] kmap_coherent
-
-On ASUS WL-500gP there are some "Data bus error"s when executing simple
-commands liks "ps" or "cat /proc/1/cmdline".
-
-This fixes OpenWrt ticket #1485: https://dev.openwrt.org/ticket/1485
----
---- a/arch/mips/include/asm/cpu-features.h
-+++ b/arch/mips/include/asm/cpu-features.h
-@@ -187,6 +187,9 @@
- #ifndef cpu_has_local_ebase
- #define cpu_has_local_ebase   1
- #endif
-+#ifndef cpu_use_kmap_coherent
-+#define cpu_use_kmap_coherent 1
-+#endif
- 
- /*
-  * I-Cache snoops remote store.        This only matters on SMP.  Some multiprocessors
---- a/arch/mips/include/asm/mach-bcm47xx/cpu-feature-overrides.h
-+++ b/arch/mips/include/asm/mach-bcm47xx/cpu-feature-overrides.h
-@@ -80,4 +80,6 @@
- #define cpu_scache_line_size()                0
- #define cpu_has_vz                    0
- 
-+#define cpu_use_kmap_coherent         0
-+
- #endif /* __ASM_MACH_BCM47XX_CPU_FEATURE_OVERRIDES_H */
---- a/arch/mips/mm/c-r4k.c
-+++ b/arch/mips/mm/c-r4k.c
-@@ -694,7 +694,7 @@ static inline void local_r4k_flush_cache
-               map_coherent = (cpu_has_dc_aliases &&
-                               page_mapcount(page) &&
-                               !Page_dcache_dirty(page));
--              if (map_coherent)
-+              if (map_coherent && cpu_use_kmap_coherent)
-                       vaddr = kmap_coherent(page, addr);
-               else
-                       vaddr = kmap_atomic(page);
-@@ -719,7 +719,7 @@ static inline void local_r4k_flush_cache
-       }
- 
-       if (vaddr) {
--              if (map_coherent)
-+              if (map_coherent && cpu_use_kmap_coherent)
-                       kunmap_coherent();
-               else
-                       kunmap_atomic(vaddr);
---- a/arch/mips/mm/init.c
-+++ b/arch/mips/mm/init.c
-@@ -170,7 +170,7 @@ void copy_user_highpage(struct page *to,
-       void *vfrom, *vto;
- 
-       vto = kmap_atomic(to);
--      if (cpu_has_dc_aliases &&
-+      if (cpu_has_dc_aliases && cpu_use_kmap_coherent &&
-           page_mapcount(from) && !Page_dcache_dirty(from)) {
-               vfrom = kmap_coherent(from, vaddr);
-               copy_page(vto, vfrom);
-@@ -192,7 +192,7 @@ void copy_to_user_page(struct vm_area_st
-       struct page *page, unsigned long vaddr, void *dst, const void *src,
-       unsigned long len)
- {
--      if (cpu_has_dc_aliases &&
-+      if (cpu_has_dc_aliases && cpu_use_kmap_coherent &&
-           page_mapcount(page) && !Page_dcache_dirty(page)) {
-               void *vto = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK);
-               memcpy(vto, src, len);
-@@ -210,7 +210,7 @@ void copy_from_user_page(struct vm_area_
-       struct page *page, unsigned long vaddr, void *dst, const void *src,
-       unsigned long len)
- {
--      if (cpu_has_dc_aliases &&
-+      if (cpu_has_dc_aliases && cpu_use_kmap_coherent &&
-           page_mapcount(page) && !Page_dcache_dirty(page)) {
-               void *vfrom = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK);
-               memcpy(dst, vfrom, len);