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| author | David S. Miller <davem@sunset.davemloft.net> | 2006-02-11 12:21:20 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 01:12:23 -0800 |
| commit | 459b6e621e0e15315c25bac47fa7113e5818d45d (patch) | |
| tree | 4bbff0ec1dafb7fba8b247c84ad708f54cc687fe /include/asm-sparc64 | |
| parent | fd05068d7b22b64211f9202aa67ad44b51d44242 (diff) | |
| download | blackbird-obmc-linux-459b6e621e0e15315c25bac47fa7113e5818d45d.tar.gz blackbird-obmc-linux-459b6e621e0e15315c25bac47fa7113e5818d45d.zip | |
[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')
| -rw-r--r-- | include/asm-sparc64/ttable.h | 10 |
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 |
