diff options
| author | Steven J. Hill <sjhill@mips.com> | 2012-08-29 00:20:08 -0400 |
|---|---|---|
| committer | Steven J. Hill <sjhill@mips.com> | 2012-09-13 16:43:52 -0400 |
| commit | 625c0a21700bdb90844d926a1508a17a77e369c9 (patch) | |
| tree | cda27e3f4b541e91d92788fa18985bfa20a6b119 /arch/mips/include/asm | |
| parent | 3234f4466934f08136736790e3de3c6debc71271 (diff) | |
MIPS: Avoid pipeline stalls on some MIPS32R2 cores.
The architecture specification says that an EHB instruction is
needed to avoid a hazard when writing TLB entries. However, some
cores do not have this hazard, and thus the EHB instruction causes
a costly pipeline stall. Detect these cores and do not use the EHB
instruction.
Signed-off-by: Steven J. Hill <sjhill@mips.com>
Diffstat (limited to 'arch/mips/include/asm')
0 files changed, 0 insertions, 0 deletions