diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-27 13:26:18 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-27 13:26:18 -0800 |
commit | ef1a8de8ea004a689b2aa9f5cefcba2b1a0262f2 (patch) | |
tree | 14324fad5e33c50c7d00646b7f6d2524943e7726 /arch/powerpc/lib/copyuser_64.S | |
parent | 1c32fd0c5ac1ccbdc37a1a392a5d75cbe059b401 (diff) | |
parent | 3d98ffbffb16f2a1569b83cb78db0b5100e6c937 (diff) |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (88 commits)
powerpc: Fix lwsync feature fixup vs. modules on 64-bit
powerpc: Convert pmc_owner_lock to raw_spinlock
powerpc: Convert die.lock to raw_spinlock
powerpc: Convert tlbivax_lock to raw_spinlock
powerpc: Convert mpic locks to raw_spinlock
powerpc: Convert pmac_pic_lock to raw_spinlock
powerpc: Convert big_irq_lock to raw_spinlock
powerpc: Convert feature_lock to raw_spinlock
powerpc: Convert i8259_lock to raw_spinlock
powerpc: Convert beat_htab_lock to raw_spinlock
powerpc: Convert confirm_error_lock to raw_spinlock
powerpc: Convert ipic_lock to raw_spinlock
powerpc: Convert native_tlbie_lock to raw_spinlock
powerpc: Convert beatic_irq_mask_lock to raw_spinlock
powerpc: Convert nv_lock to raw_spinlock
powerpc: Convert context_lock to raw_spinlock
powerpc/85xx: Add NOR, LEDs and PIB support for MPC8568E-MDS boards
powerpc/86xx: Enable VME driver on the GE SBC610
powerpc/86xx: Enable VME driver on the GE PPC9A
powerpc/86xx: Add MSI section to GE PPC9A DTS
...
Diffstat (limited to 'arch/powerpc/lib/copyuser_64.S')
-rw-r--r-- | arch/powerpc/lib/copyuser_64.S | 80 |
1 files changed, 57 insertions, 23 deletions
diff --git a/arch/powerpc/lib/copyuser_64.S b/arch/powerpc/lib/copyuser_64.S index 693b14a778f..578b625d6a3 100644 --- a/arch/powerpc/lib/copyuser_64.S +++ b/arch/powerpc/lib/copyuser_64.S @@ -44,37 +44,55 @@ BEGIN_FTR_SECTION andi. r0,r4,7 bne .Lsrc_unaligned END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD) - srdi r7,r5,4 -20: ld r9,0(r4) - addi r4,r4,-8 - mtctr r7 - andi. r5,r5,7 - bf cr7*4+0,22f - addi r3,r3,8 - addi r4,r4,8 - mr r8,r9 - blt cr1,72f -21: ld r9,8(r4) -70: std r8,8(r3) -22: ldu r8,16(r4) -71: stdu r9,16(r3) + blt cr1,.Ldo_tail /* if < 16 bytes to copy */ + srdi r0,r5,5 + cmpdi cr1,r0,0 +20: ld r7,0(r4) +220: ld r6,8(r4) + addi r4,r4,16 + mtctr r0 + andi. r0,r5,0x10 + beq 22f + addi r3,r3,16 + addi r4,r4,-16 + mr r9,r7 + mr r8,r6 + beq cr1,72f +21: ld r7,16(r4) +221: ld r6,24(r4) + addi r4,r4,32 +70: std r9,0(r3) +270: std r8,8(r3) +22: ld r9,0(r4) +222: ld r8,8(r4) +71: std r7,16(r3) +271: std r6,24(r3) + addi r3,r3,32 bdnz 21b -72: std r8,8(r3) +72: std r9,0(r3) +272: std r8,8(r3) + andi. r5,r5,0xf beq+ 3f - addi r3,r3,16 + addi r4,r4,16 .Ldo_tail: - bf cr7*4+1,1f -23: lwz r9,8(r4) + addi r3,r3,16 + bf cr7*4+0,246f +244: ld r9,0(r4) + addi r4,r4,8 +245: std r9,0(r3) + addi r3,r3,8 +246: bf cr7*4+1,1f +23: lwz r9,0(r4) addi r4,r4,4 73: stw r9,0(r3) addi r3,r3,4 1: bf cr7*4+2,2f -44: lhz r9,8(r4) +44: lhz r9,0(r4) addi r4,r4,2 74: sth r9,0(r3) addi r3,r3,2 2: bf cr7*4+3,3f -45: lbz r9,8(r4) +45: lbz r9,0(r4) 75: stb r9,0(r3) 3: li r3,0 blr @@ -220,7 +238,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD) 131: addi r3,r3,8 120: +320: 122: +322: 124: 125: 126: @@ -229,9 +249,11 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD) 129: 133: addi r3,r3,8 -121: 132: addi r3,r3,8 +121: +321: +344: 134: 135: 138: @@ -303,18 +325,22 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD) 183: add r3,r3,r7 b 1f +371: 180: addi r3,r3,8 171: 177: addi r3,r3,8 -170: -172: +370: +372: 176: 178: addi r3,r3,4 185: addi r3,r3,4 +170: +172: +345: 173: 174: 175: @@ -341,11 +367,19 @@ END_FTR_SECTION_IFCLR(CPU_FTR_UNALIGNED_LD_STD) .section __ex_table,"a" .align 3 .llong 20b,120b + .llong 220b,320b .llong 21b,121b + .llong 221b,321b .llong 70b,170b + .llong 270b,370b .llong 22b,122b + .llong 222b,322b .llong 71b,171b + .llong 271b,371b .llong 72b,172b + .llong 272b,372b + .llong 244b,344b + .llong 245b,345b .llong 23b,123b .llong 73b,173b .llong 44b,144b |