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authorMark Brown <broonie@kernel.org>2014-10-20 12:55:07 -0400
committerMark Brown <broonie@kernel.org>2014-10-20 13:27:32 -0400
commitb7a40242c82cd73cfcea305f23e67d068dd8401a (patch)
tree251b49d19cd7c371847ae1f951e1b537ca0e1c15 /arch/mips/mm
parentd26833bfce5e56017bea9f1f50838f20e18e7b7e (diff)
parent9c6de47d53a3ce8df1642ae67823688eb98a190a (diff)
Merge branch 'fix/dw' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-dw
Conflicts: drivers/spi/spi-dw-mid.c
Diffstat (limited to 'arch/mips/mm')
-rw-r--r--arch/mips/mm/cache.c27
-rw-r--r--arch/mips/mm/init.c1
2 files changed, 20 insertions, 8 deletions
diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c
index f7b91d3a371d..7e3ea7766822 100644
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -119,25 +119,36 @@ void __flush_anon_page(struct page *page, unsigned long vmaddr)
119 119
120EXPORT_SYMBOL(__flush_anon_page); 120EXPORT_SYMBOL(__flush_anon_page);
121 121
122void __update_cache(struct vm_area_struct *vma, unsigned long address, 122static void mips_flush_dcache_from_pte(pte_t pteval, unsigned long address)
123 pte_t pte)
124{ 123{
125 struct page *page; 124 struct page *page;
126 unsigned long pfn, addr; 125 unsigned long pfn = pte_pfn(pteval);
127 int exec = (vma->vm_flags & VM_EXEC) && !cpu_has_ic_fills_f_dc;
128 126
129 pfn = pte_pfn(pte);
130 if (unlikely(!pfn_valid(pfn))) 127 if (unlikely(!pfn_valid(pfn)))
131 return; 128 return;
129
132 page = pfn_to_page(pfn); 130 page = pfn_to_page(pfn);
133 if (page_mapping(page) && Page_dcache_dirty(page)) { 131 if (page_mapping(page) && Page_dcache_dirty(page)) {
134 addr = (unsigned long) page_address(page); 132 unsigned long page_addr = (unsigned long) page_address(page);
135 if (exec || pages_do_alias(addr, address & PAGE_MASK)) 133
136 flush_data_cache_page(addr); 134 if (!cpu_has_ic_fills_f_dc ||
135 pages_do_alias(page_addr, address & PAGE_MASK))
136 flush_data_cache_page(page_addr);
137 ClearPageDcacheDirty(page); 137 ClearPageDcacheDirty(page);
138 } 138 }
139} 139}
140 140
141void set_pte_at(struct mm_struct *mm, unsigned long addr,
142 pte_t *ptep, pte_t pteval)
143{
144 if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc) {
145 if (pte_present(pteval))
146 mips_flush_dcache_from_pte(pteval, addr);
147 }
148
149 set_pte(ptep, pteval);
150}
151
141unsigned long _page_cachable_default; 152unsigned long _page_cachable_default;
142EXPORT_SYMBOL(_page_cachable_default); 153EXPORT_SYMBOL(_page_cachable_default);
143 154
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 571aab064936..f42e35e42790 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -53,6 +53,7 @@
53 */ 53 */
54unsigned long empty_zero_page, zero_page_mask; 54unsigned long empty_zero_page, zero_page_mask;
55EXPORT_SYMBOL_GPL(empty_zero_page); 55EXPORT_SYMBOL_GPL(empty_zero_page);
56EXPORT_SYMBOL(zero_page_mask);
56 57
57/* 58/*
58 * Not static inline because used by IP27 special magic initialization code 59 * Not static inline because used by IP27 special magic initialization code