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| author | Will Deacon <will.deacon@arm.com> | 2013-03-28 11:25:03 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-04-03 18:00:00 +0200 |
| commit | 4fd75911f6970478444eece952dacb2db9d1e5a5 (patch) | |
| tree | 310800b1a6ad447f697f1dccd12d3e6cf11179cf /arch/arm/kernel/entry-header.S | |
| parent | ARM: 7683/1: pci: add a align_resource hook (diff) | |
| download | linux-4fd75911f6970478444eece952dacb2db9d1e5a5.tar.xz linux-4fd75911f6970478444eece952dacb2db9d1e5a5.zip | |
ARM: 7687/1: atomics: don't use exclusives for atomic64 read/set with LPAE
To ease page table updates with 64-bit descriptors, CPUs implementing
LPAE are required to implement ldrd/strd as atomic operations.
This patch uses these accessors instead of the exclusive variants when
performing atomic64_{read,set} on LPAE systems.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/entry-header.S')
0 files changed, 0 insertions, 0 deletions