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| author | Liu Hua <sdu.liu@huawei.com> | 2014-04-18 10:43:32 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-04-23 12:09:42 +0200 |
| commit | a05e54c103b0b8e1dab5d04b411f1d48387c4903 (patch) | |
| tree | d9960fd5c3517f42f57c4513e28dd51a6353ec27 /Documentation/arm | |
| parent | ARM: 8031/1: fixmap: remove FIX_KMAP_BEGIN and FIX_KMAP_END (diff) | |
| download | linux-a05e54c103b0b8e1dab5d04b411f1d48387c4903.tar.xz linux-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 'Documentation/arm')
| -rw-r--r-- | Documentation/arm/memory.txt | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/arm/memory.txt b/Documentation/arm/memory.txt index d74e8a5901fc..256c5e067fb1 100644 --- a/Documentation/arm/memory.txt +++ b/Documentation/arm/memory.txt @@ -41,7 +41,7 @@ fffe8000 fffeffff DTCM mapping area for platforms with fffe0000 fffe7fff ITCM mapping area for platforms with ITCM mounted inside the CPU. -fff00000 fffdffff Fixmap mapping region. Addresses provided +fffc0000 ffdfffff Fixmap mapping region. Addresses provided by fix_to_virt() will be located here. fee00000 feffffff Mapping of PCI I/O space. This is a static |