diff options
| author | Will Deacon <will.deacon@arm.com> | 2013-02-28 17:48:11 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-03-03 23:54:15 +0100 |
| commit | 862c588f062fe9339a180cf6429e4df1855c376a (patch) | |
| tree | 20348a057421b00913563d103c1cd430d1a7bb6f /arch/mn10300 | |
| parent | ARM: 7659/1: mm: make mm->context.id an atomic64_t variable (diff) | |
| download | linux-862c588f062fe9339a180cf6429e4df1855c376a.tar.xz linux-862c588f062fe9339a180cf6429e4df1855c376a.zip | |
ARM: 7660/1: tlb: add branch predictor maintenance operations
The ARM architecture requires explicit branch predictor maintenance
when updating an instruction stream for a given virtual address. In
reality, this isn't so much of a burden because the branch predictor
is flushed during the cache maintenance required to make the new
instructions visible to the I-side of the processor.
However, there are still some cases where explicit flushing is required,
so add a local_bp_flush_all operation to deal with this.
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 '')
0 files changed, 0 insertions, 0 deletions