diff options
| author | Will Deacon <[email protected]> | 2010-09-14 09:51:43 +0100 |
|---|---|---|
| committer | Russell King <[email protected]> | 2010-09-17 10:16:51 +0100 |
| commit | 9f05027c7cb3cfe56a31892bd83391138d41a667 (patch) | |
| tree | efe9361be8e1b8d78ff44ef13a1e46e1a4b9b23a /net/unix/sysctl_net_unix.c | |
| parent | 6491848d1ab246f6d243ddef25085fc1d836ff2c (diff) | |
ARM: 6388/1: errata: DMB operation may be faulty
On versions of the Cortex-A9 up to and including r2p2, under rare
circumstances, a DMB instruction between 2 write operations may not
ensure the correct visibility ordering of the 2 writes.
This workaround sets a bit in the diagnostic register of the Cortex-A9,
causing the DMB instruction to behave like a DSB, which functions
correctly on the affected cores.
Acked-by: Catalin Marinas <[email protected]>
Signed-off-by: Will Deacon <[email protected]>
Signed-off-by: Russell King <[email protected]>
Diffstat (limited to 'net/unix/sysctl_net_unix.c')
0 files changed, 0 insertions, 0 deletions