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| author |   Cyril Chemparathy <cyril@ti.com> | 2012-07-20 12:01:23 -0400 |
|---|---|---|
| committer |   Will Deacon <will.deacon@arm.com> | 2013-05-30 16:02:18 +0100 |
| commit | 82f667046ec895552caf2f7a4c6841c530bfc215 (patch) | |
| tree | a9ebf45fc7606fd6c8b8c7d5bce643a6527de454 /arch/arm/include/asm/memory.h | |
| parent | ARM: LPAE: accomodate >32-bit addresses for page table base (diff) | |
| download | linux-dev-82f667046ec895552caf2f7a4c6841c530bfc215.tar.xz linux-dev-82f667046ec895552caf2f7a4c6841c530bfc215.zip | |
ARM: mm: use physical addresses in highmem sanity checks
This patch modifies the highmem sanity checking code to use physical addresses
instead. This change eliminates the wrap-around problems associated with the
original virtual address based checks, and this simplifies the code a bit.
The one constraint imposed here is that low physical memory must be mapped in
a monotonically increasing fashion if there are multiple banks of memory,
i.e., x < y must => pa(x) < pa(y).
Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Subash Patel <subash.rp@samsung.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm/include/asm/memory.h')
0 files changed, 0 insertions, 0 deletions