From 3b617e51ccb4e6e8fd00cbf15bf76a218776d6dd Mon Sep 17 00:00:00 2001 From: nbd Date: Tue, 6 Jan 2009 22:36:41 +0000 Subject: add initial 2.6.28 support for brcm47xx target Signed-off-by: Hauke Mehrtens git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13909 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../brcm47xx/patches-2.6.28/310-no_highpage.patch | 68 ++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 target/linux/brcm47xx/patches-2.6.28/310-no_highpage.patch (limited to 'target/linux/brcm47xx/patches-2.6.28/310-no_highpage.patch') diff --git a/target/linux/brcm47xx/patches-2.6.28/310-no_highpage.patch b/target/linux/brcm47xx/patches-2.6.28/310-no_highpage.patch new file mode 100644 index 000000000..2420e81a3 --- /dev/null +++ b/target/linux/brcm47xx/patches-2.6.28/310-no_highpage.patch @@ -0,0 +1,68 @@ +diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h +--- a/arch/mips/include/asm/page.h ++++ b/arch/mips/include/asm/page.h +@@ -32,6 +32,7 @@ + #ifndef __ASSEMBLY__ + + #include ++#include + #include + + extern void build_clear_page(void); +@@ -67,13 +68,16 @@ static inline void clear_user_page(void *addr, unsigned long vaddr, + flush_data_cache_page((unsigned long)addr); + } + +-extern void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, +- struct page *to); +-struct vm_area_struct; +-extern void copy_user_highpage(struct page *to, struct page *from, +- unsigned long vaddr, struct vm_area_struct *vma); ++static inline void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, ++ struct page *to) ++{ ++ extern void (*flush_data_cache_page)(unsigned long addr); + +-#define __HAVE_ARCH_COPY_USER_HIGHPAGE ++ copy_page(vto, vfrom); ++ if (!cpu_has_ic_fills_f_dc || ++ pages_do_alias((unsigned long)vto, vaddr & PAGE_MASK)) ++ flush_data_cache_page((unsigned long)vto); ++} + + /* + * These are used to make use of C type-checking.. +diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c +--- a/arch/mips/mm/init.c ++++ b/arch/mips/mm/init.c +@@ -206,30 +206,6 @@ void kunmap_coherent(void) + preempt_check_resched(); + } + +-void copy_user_highpage(struct page *to, struct page *from, +- unsigned long vaddr, struct vm_area_struct *vma) +-{ +- void *vfrom, *vto; +- +- vto = kmap_atomic(to, KM_USER1); +- if (cpu_has_dc_aliases && cpu_use_kmap_coherent && +- page_mapped(from) && !Page_dcache_dirty(from)) { +- vfrom = kmap_coherent(from, vaddr); +- copy_page(vto, vfrom); +- kunmap_coherent(); +- } else { +- vfrom = kmap_atomic(from, KM_USER0); +- copy_page(vto, vfrom); +- kunmap_atomic(vfrom, KM_USER0); +- } +- if ((!cpu_has_ic_fills_f_dc) || +- pages_do_alias((unsigned long)vto, vaddr & PAGE_MASK)) +- flush_data_cache_page((unsigned long)vto); +- kunmap_atomic(vto, KM_USER1); +- /* Make sure this page is cleared on other CPU's too before using it */ +- smp_wmb(); +-} +- + void copy_to_user_page(struct vm_area_struct *vma, + struct page *page, unsigned long vaddr, void *dst, const void *src, + unsigned long len) -- cgit v1.2.3