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| author | Jimi Xenidis <jimix@watson.ibm.com> | 2005-09-15 08:42:19 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-15 08:04:39 -0700 |
| commit | be201f7f4cd26b1bb994062803e0d87877e749ce (patch) | |
| tree | 091e65900e1ca67de0549d4236164067596a11e9 /arch | |
| parent | 0fb74dfb08b3d40e41ffdb6540078dcac433ac7a (diff) | |
| download | linux-stable-be201f7f4cd26b1bb994062803e0d87877e749ce.tar.gz linux-stable-be201f7f4cd26b1bb994062803e0d87877e749ce.tar.bz2 linux-stable-be201f7f4cd26b1bb994062803e0d87877e749ce.zip | |
[PATCH] ppc64: Fix recent regression
As noted by Olof Johansson <olof@lixom.net>:
"A recent patch changed the way the LPAR bit is checked during early
boot. This resulted in a polarity change in a conditional branch
without changing the branch, causing at least some legacy machines to
not boot."
This fixes it.
Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ppc64/kernel/head.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S index 58c314738c99..72c61041151a 100644 --- a/arch/ppc64/kernel/head.S +++ b/arch/ppc64/kernel/head.S @@ -1649,7 +1649,7 @@ _GLOBAL(__secondary_start) ld r3,0(r3) lwz r3,PLATFORM(r3) /* r3 = platform flags */ andi. r3,r3,PLATFORM_LPAR /* Test if bit 0 is set (LPAR bit) */ - bne 98f + beq 98f /* branch if result is 0 */ mfspr r3,PVR srwi r3,r3,16 cmpwi r3,0x37 /* SStar */ @@ -1813,7 +1813,7 @@ _STATIC(start_here_multiplatform) ld r3,0(r3) lwz r3,PLATFORM(r3) /* r3 = platform flags */ andi. r3,r3,PLATFORM_LPAR /* Test if bit 0 is set (LPAR bit) */ - bne 98f + beq 98f /* branch if result is 0 */ mfspr r3,PVR srwi r3,r3,16 cmpwi r3,0x37 /* SStar */ @@ -1834,7 +1834,7 @@ _STATIC(start_here_multiplatform) lwz r3,PLATFORM(r3) /* r3 = platform flags */ /* Test if bit 0 is set (LPAR bit) */ andi. r3,r3,PLATFORM_LPAR - bne 98f + bne 98f /* branch if result is !0 */ LOADADDR(r6,_SDR1) /* Only if NOT LPAR */ sub r6,r6,r26 ld r6,0(r6) /* get the value of _SDR1 */ |