diff options
| author | Michal Simek <monstr@monstr.eu> | 2011-06-10 11:07:55 +0200 |
|---|---|---|
| committer | Michal Simek <monstr@monstr.eu> | 2011-10-14 12:24:22 +0200 |
| commit | c83858b3e6e8db9dbb17641de1a2420bb102ae31 (patch) | |
| tree | f0cc549fb0d73478819978c69b2d37abc53209a2 /arch/microblaze/lib/uaccess_old.S | |
| parent | eedac7914dd4d6effa0b970a36efd898c9fc4873 (diff) | |
microblaze: Change label names - copy_tofrom_user
Change label name to be prepared for loop unrolling.
Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze/lib/uaccess_old.S')
| -rw-r--r-- | arch/microblaze/lib/uaccess_old.S | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/arch/microblaze/lib/uaccess_old.S b/arch/microblaze/lib/uaccess_old.S index bacfedc3c7d..6dfd4a08726 100644 --- a/arch/microblaze/lib/uaccess_old.S +++ b/arch/microblaze/lib/uaccess_old.S @@ -121,32 +121,31 @@ __copy_tofrom_user: */ beqid r7, 0f /* zero size is not likely */ andi r3, r7, 0x3 /* filter add count */ - bneid r3, 4f /* if is odd value then byte copying */ + bneid r3, bu /* if is odd value then byte copying */ or r3, r5, r6 /* find if is any to/from unaligned */ andi r3, r3, 0x3 /* mask unaligned */ - bneid r3, 1f /* it is unaligned -> then jump */ + bneid r3, bu1 /* it is unaligned -> then jump */ or r3, r0, r0 -/* at least one 4 byte copy */ -5: lw r4, r6, r3 -6: sw r4, r5, r3 +w1: lw r4, r6, r3 /* at least one 4 byte copy */ +w2: sw r4, r5, r3 addik r7, r7, -4 - bneid r7, 5b + bneid r7, w1 addik r3, r3, 4 addik r3, r7, 0 rtsd r15, 8 nop .section __ex_table,"a" - .word 5b, 0f; - .word 6b, 0f; + .word w1, 0f; + .word w2, 0f; .text -4: or r3, r0, r0 -1: lbu r4,r6,r3 -2: sb r4,r5,r3 +bu: or r3, r0, r0 +bu1: lbu r4,r6,r3 +bu2: sb r4,r5,r3 addik r7,r7,-1 - bneid r7,1b + bneid r7,bu1 addik r3,r3,1 /* delay slot */ 0: addik r3,r7,0 @@ -155,6 +154,6 @@ __copy_tofrom_user: .size __copy_tofrom_user, . - __copy_tofrom_user .section __ex_table,"a" - .word 1b, 0b; - .word 2b, 0b; + .word bu1, 0b; + .word bu2, 0b; .text |