diff options
Diffstat (limited to 'arch/mips/mm')
| -rw-r--r-- | arch/mips/mm/c-r4k.c | 10 | ||||
| -rw-r--r-- | arch/mips/mm/init.c | 19 |
2 files changed, 19 insertions, 10 deletions
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 971f6c047b8..d7088331fb0 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -983,11 +983,15 @@ static void __init probe_pcache(void) printk("Primary instruction cache %ldkB, %s, %s, linesize %d bytes.\n", icache_size >> 10, - cpu_has_vtag_icache ? "virtually tagged" : "physically tagged", + cpu_has_vtag_icache ? "VIVT" : "VIPT", way_string[c->icache.ways], c->icache.linesz); - printk("Primary data cache %ldkB, %s, linesize %d bytes.\n", - dcache_size >> 10, way_string[c->dcache.ways], c->dcache.linesz); + printk("Primary data cache %ldkB, %s, %s, %s, linesize %d bytes\n", + dcache_size >> 10, way_string[c->dcache.ways], + (c->dcache.flags & MIPS_CACHE_PINDEX) ? "PIPT" : "VIPT", + (c->dcache.flags & MIPS_CACHE_ALIASES) ? + "cache aliases" : "no aliases", + c->dcache.linesz); } /* diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 5240432e6d1..110ee7656b4 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -211,7 +211,7 @@ void copy_user_highpage(struct page *to, struct page *from, void *vfrom, *vto; vto = kmap_atomic(to, KM_USER1); - if (cpu_has_dc_aliases && !Page_dcache_dirty(from)) { + if (cpu_has_dc_aliases && page_mapped(from)) { vfrom = kmap_coherent(from, vaddr); copy_page(vto, vfrom); kunmap_coherent(); @@ -234,12 +234,15 @@ void copy_to_user_page(struct vm_area_struct *vma, struct page *page, unsigned long vaddr, void *dst, const void *src, unsigned long len) { - if (cpu_has_dc_aliases) { + if (cpu_has_dc_aliases && page_mapped(page)) { void *vto = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK); memcpy(vto, src, len); kunmap_coherent(); - } else + } else { memcpy(dst, src, len); + if (cpu_has_dc_aliases) + SetPageDcacheDirty(page); + } if ((vma->vm_flags & VM_EXEC) && !cpu_has_ic_fills_f_dc) flush_cache_page(vma, vaddr, page_to_pfn(page)); } @@ -250,13 +253,15 @@ void copy_from_user_page(struct vm_area_struct *vma, struct page *page, unsigned long vaddr, void *dst, const void *src, unsigned long len) { - if (cpu_has_dc_aliases) { - void *vfrom = - kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK); + if (cpu_has_dc_aliases && page_mapped(page)) { + void *vfrom = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK); memcpy(dst, vfrom, len); kunmap_coherent(); - } else + } else { memcpy(dst, src, len); + if (cpu_has_dc_aliases) + SetPageDcacheDirty(page); + } } EXPORT_SYMBOL(copy_from_user_page); |