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| author | Liu Hua <sdu.liu@huawei.com> | 2014-04-18 12:27:01 +0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-04-23 14:09:27 +0400 |
| commit | 4221e2e6b3160e4b558df14fa79f025c0e277935 (patch) | |
| tree | 35a6bed487f7ab9ddaa557eb9f447bbaec8824ca /arch/arm/mm | |
| parent | 16c79a3776c17965dedab4732d925f6098df91c1 (diff) | |
| download | linux-4221e2e6b3160e4b558df14fa79f025c0e277935.tar.xz | |
ARM: 8031/1: fixmap: remove FIX_KMAP_BEGIN and FIX_KMAP_END
It seems that these two macros are not used by non architecture
specific code. And on ARM FIX_KMAP_BEGIN equals zero.
This patch removes these two macros. Instead, using FIX_KMAP_NR_PTES to
tell the pte number belonged to fixmap mapping region. The code will
become clearer when I introduce a bugfix on fixmap mapping region.
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Liu Hua <sdu.liu@huawei.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm')
| -rw-r--r-- | arch/arm/mm/highmem.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/mm/highmem.c b/arch/arm/mm/highmem.c index 21b9e1bf9b77..e05e8ad26ba5 100644 --- a/arch/arm/mm/highmem.c +++ b/arch/arm/mm/highmem.c @@ -63,7 +63,7 @@ void *kmap_atomic(struct page *page) type = kmap_atomic_idx_push(); idx = type + KM_TYPE_NR * smp_processor_id(); - vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); + vaddr = __fix_to_virt(idx); #ifdef CONFIG_DEBUG_HIGHMEM /* * With debugging enabled, kunmap_atomic forces that entry to 0. @@ -94,7 +94,7 @@ void __kunmap_atomic(void *kvaddr) if (cache_is_vivt()) __cpuc_flush_dcache_area((void *)vaddr, PAGE_SIZE); #ifdef CONFIG_DEBUG_HIGHMEM - BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx)); + BUG_ON(vaddr != __fix_to_virt(idx)); set_top_pte(vaddr, __pte(0)); #else (void) idx; /* to kill a warning */ @@ -117,7 +117,7 @@ void *kmap_atomic_pfn(unsigned long pfn) type = kmap_atomic_idx_push(); idx = type + KM_TYPE_NR * smp_processor_id(); - vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); + vaddr = __fix_to_virt(idx); #ifdef CONFIG_DEBUG_HIGHMEM BUG_ON(!pte_none(get_top_pte(vaddr))); #endif |