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| author |   Liu Hua <sdu.liu@huawei.com> | 2014-04-18 09:43:32 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2014-04-23 11:09:42 +0100 |
| commit | a05e54c103b0b8e1dab5d04b411f1d48387c4903 (patch) | |
| tree | d9960fd5c3517f42f57c4513e28dd51a6353ec27 /arch/arm/include/asm/highmem.h | |
| parent | ARM: 8031/1: fixmap: remove FIX_KMAP_BEGIN and FIX_KMAP_END (diff) | |
| download | linux-dev-a05e54c103b0b8e1dab5d04b411f1d48387c4903.tar.xz linux-dev-a05e54c103b0b8e1dab5d04b411f1d48387c4903.zip | |
ARM: 8031/2: change fixmap mapping region to support 32 CPUs
In 32-bit ARM systems, the fixmap mapping region can support no more
than 14 CPUs(total: 896k; one CPU: 64K). And we can configure NR_CPUS
up to 32. So there is a mismatch.
This patch moves fixmapping region downwards to region 0xffc00000-
0xffe00000. Then the fixmap mapping region can support up to 32 CPUs.
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/include/asm/highmem.h')
| -rw-r--r-- | arch/arm/include/asm/highmem.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/asm/highmem.h b/arch/arm/include/asm/highmem.h index 91b99abe7a95..535579511ed0 100644 --- a/arch/arm/include/asm/highmem.h +++ b/arch/arm/include/asm/highmem.h @@ -18,6 +18,7 @@ } while (0) extern pte_t *pkmap_page_table; +extern pte_t *fixmap_page_table; extern void *kmap_high(struct page *page); extern void kunmap_high(struct page *page); |