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| author | Will Deacon <will.deacon@arm.com> | 2010-09-14 09:53:02 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-09-17 10:16:52 +0100 |
| commit | a672e99b129e286df2e2697a1b603d82321117f3 (patch) | |
| tree | 3307cdb68df62a67d78309ecdf6c35cab7321892 /arch/arm/mach-vexpress | |
| parent | 9f05027c7cb3cfe56a31892bd83391138d41a667 (diff) | |
| download | linux-a672e99b129e286df2e2697a1b603d82321117f3.tar.gz linux-a672e99b129e286df2e2697a1b603d82321117f3.tar.bz2 linux-a672e99b129e286df2e2697a1b603d82321117f3.zip | |
ARM: 6389/1: errata: incorrect hazard handling in the SCU may lead to data corruption
On the r2p0, r2p1 and r2p2 versions of the Cortex-A9, data corruption
can occur if a shared cache line is replaced on one CPU as another CPU
is accessing it.
This workaround sets two bits in the diagnostic register of the Cortex-A9,
reducing the linefill issuing capabilities of the processor and
avoiding the erroneous behaviour.
Acked-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/mach-vexpress')
0 files changed, 0 insertions, 0 deletions