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authorDavid S. Miller <davem@sunset.davemloft.net>2006-02-11 23:21:20 +0300
committerDavid S. Miller <davem@sunset.davemloft.net>2006-03-20 12:12:23 +0300
commit459b6e621e0e15315c25bac47fa7113e5818d45d (patch)
tree4bbff0ec1dafb7fba8b247c84ad708f54cc687fe /include/asm-sparc64/ttable.h
parentfd05068d7b22b64211f9202aa67ad44b51d44242 (diff)
downloadlinux-459b6e621e0e15315c25bac47fa7113e5818d45d.tar.xz
[SPARC64]: Fix some SUN4V TLB miss bugs.
Code patching did not sign extend negative branch offsets correctly. Kernel TLB miss path needs patching and %g4 register preservation in order to handle SUN4V correctly. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64/ttable.h')
-rw-r--r--include/asm-sparc64/ttable.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/include/asm-sparc64/ttable.h b/include/asm-sparc64/ttable.h
index 6bb86a7a5b42..9e28b240f3aa 100644
--- a/include/asm-sparc64/ttable.h
+++ b/include/asm-sparc64/ttable.h
@@ -186,19 +186,19 @@
ldx [%g2 + HV_FAULT_I_CTX_OFFSET], %g5; \
srlx %g4, 22, %g7; \
sllx %g5, 48, %g6; \
- brz,pn %g5, kvmap_itlb_4v; \
+ ba,pt %xcc, sun4v_itsb_miss; \
or %g6, %g7, %g6; \
- ba,a,pt %xcc, sun4v_itsb_miss;
+ nop;
-#define SUN4V_DTSB_MISS \
+#define SUN4V_DTSB_MISS \
ldxa [%g0] ASI_SCRATCHPAD, %g2; \
ldx [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4; \
ldx [%g2 + HV_FAULT_D_CTX_OFFSET], %g5; \
srlx %g4, 22, %g7; \
sllx %g5, 48, %g6; \
- brz,pn %g5, kvmap_dtlb_4v; \
+ ba,pt %xcc, sun4v_dtsb_miss; \
or %g6, %g7, %g6; \
- ba,a,pt %xcc, sun4v_dtsb_miss;
+ nop;
/* Before touching these macros, you owe it to yourself to go and
* see how arch/sparc64/kernel/winfixup.S works... -DaveM