diff options
| author | Richard Henderson <rth@twiddle.net> | 2017-06-23 14:20:01 -0700 |
|---|---|---|
| committer | Matt Turner <mattst88@gmail.com> | 2017-08-29 12:01:49 -0700 |
| commit | 4606f68faff1b16734f9379937fc49ae289d4c6e (patch) | |
| tree | b3fba5c2240d6d822a6444a4ae2368ed5f79682e /arch/alpha/lib | |
| parent | 4758ce82e66711b1a4557577e30a5f9b88d4a4b5 (diff) | |
| download | op-kernel-dev-4606f68faff1b16734f9379937fc49ae289d4c6e.zip op-kernel-dev-4606f68faff1b16734f9379937fc49ae289d4c6e.tar.gz | |
alpha: Fix typo in ev6-copy_user.S
Patch 8525023121de4848b5f0a7d867ffeadbc477774d introduced a typo.
That said, the identity AND insns added by that patch are more
clearly written as MOV. At the same time, re-schedule the ev6
version so that the first dispatch can execute in parallel.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Diffstat (limited to 'arch/alpha/lib')
| -rw-r--r-- | arch/alpha/lib/copy_user.S | 2 | ||||
| -rw-r--r-- | arch/alpha/lib/ev6-copy_user.S | 7 |
2 files changed, 5 insertions, 4 deletions
diff --git a/arch/alpha/lib/copy_user.S b/arch/alpha/lib/copy_user.S index 159f1b7..c277a1a 100644 --- a/arch/alpha/lib/copy_user.S +++ b/arch/alpha/lib/copy_user.S @@ -34,7 +34,7 @@ .ent __copy_user __copy_user: .prologue 0 - and $18,$18,$0 + mov $18,$0 and $16,7,$3 beq $0,$35 beq $3,$36 diff --git a/arch/alpha/lib/ev6-copy_user.S b/arch/alpha/lib/ev6-copy_user.S index 35e6710..954ca03 100644 --- a/arch/alpha/lib/ev6-copy_user.S +++ b/arch/alpha/lib/ev6-copy_user.S @@ -45,9 +45,10 @@ # Pipeline info: Slotting & Comments __copy_user: .prologue 0 - andq $18, $18, $0 - subq $18, 32, $1 # .. E .. .. : Is this going to be a small copy? - beq $0, $zerolength # U .. .. .. : U L U L + mov $18, $0 # .. .. .. E + subq $18, 32, $1 # .. .. E. .. : Is this going to be a small copy? + nop # .. E .. .. + beq $18, $zerolength # U .. .. .. : U L U L and $16,7,$3 # .. .. .. E : is leading dest misalignment ble $1, $onebyteloop # .. .. U .. : 1st branch : small amount of data |
