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| author | Rob Herring <robh@kernel.org> | 2014-05-13 18:34:35 -0500 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2014-05-13 18:34:35 -0500 |
| commit | eafd370dfe487facfdef499057f4eac9aa0b4bf5 (patch) | |
| tree | 0925a67cd658cdf4811f49b4cd2073f663166bd0 /arch/xtensa/mm/cache.c | |
| parent | c3fc952d2fbe3ec78defd70cf73d5d76d27092ec (diff) | |
| parent | fb2caa50fbacd21719a90dd66b617ce3cb4fd6d7 (diff) | |
| download | linux-eafd370dfe487facfdef499057f4eac9aa0b4bf5.tar.gz linux-eafd370dfe487facfdef499057f4eac9aa0b4bf5.tar.bz2 linux-eafd370dfe487facfdef499057f4eac9aa0b4bf5.zip | |
Merge branch 'dt-bus-name' into for-next
Diffstat (limited to 'arch/xtensa/mm/cache.c')
| -rw-r--r-- | arch/xtensa/mm/cache.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/xtensa/mm/cache.c b/arch/xtensa/mm/cache.c index ba4c47f291b1..63cbb867dadd 100644 --- a/arch/xtensa/mm/cache.c +++ b/arch/xtensa/mm/cache.c @@ -59,6 +59,10 @@ * */ +#if (DCACHE_WAY_SIZE > PAGE_SIZE) && defined(CONFIG_HIGHMEM) +#error "HIGHMEM is not supported on cores with aliasing cache." +#endif + #if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK /* @@ -179,10 +183,11 @@ update_mmu_cache(struct vm_area_struct * vma, unsigned long addr, pte_t *ptep) #else if (!PageReserved(page) && !test_bit(PG_arch_1, &page->flags) && (vma->vm_flags & VM_EXEC) != 0) { - unsigned long paddr = (unsigned long) page_address(page); + unsigned long paddr = (unsigned long)kmap_atomic(page); __flush_dcache_page(paddr); __invalidate_icache_page(paddr); set_bit(PG_arch_1, &page->flags); + kunmap_atomic((void *)paddr); } #endif } |