diff options
| author | David S. Miller <davem@sunset.davemloft.net> | 2006-02-10 18:39:51 -0500 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 04:12:15 -0500 |
| commit | 12eaa328f9fb2d3fcb5afb682c762690d05a3cd8 (patch) | |
| tree | cce4e68b971757010a3e0bbf035fc65a381a3cd4 /include/asm-sparc64/ttable.h | |
| parent | 18397944642cbca7fcd4a109b43ed5b4652e95b9 (diff) | |
[SPARC64]: Use ASI_SCRATCHPAD address 0x0 properly.
This is where the virtual address of the fault status
area belongs.
To set it up we don't make a hypervisor call, instead
we call OBP's SUNW,set-trap-table with the real address
of the fault status area as the second argument. And
right before that call we write the virtual address into
ASI_SCRATCHPAD vaddr 0x0.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64/ttable.h')
| -rw-r--r-- | include/asm-sparc64/ttable.h | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/include/asm-sparc64/ttable.h b/include/asm-sparc64/ttable.h index 972f913709a..6bb86a7a5b4 100644 --- a/include/asm-sparc64/ttable.h +++ b/include/asm-sparc64/ttable.h | |||
| @@ -180,25 +180,25 @@ | |||
| 180 | #define KPROBES_TRAP(lvl) TRAP_ARG(bad_trap, lvl) | 180 | #define KPROBES_TRAP(lvl) TRAP_ARG(bad_trap, lvl) |
| 181 | #endif | 181 | #endif |
| 182 | 182 | ||
| 183 | #define SUN4V_ITSB_MISS \ | 183 | #define SUN4V_ITSB_MISS \ |
| 184 | mov SCRATCHPAD_CPUID, %g1; \ | 184 | ldxa [%g0] ASI_SCRATCHPAD, %g2; \ |
| 185 | ldxa [%g1] ASI_SCRATCHPAD, %g2; \ | 185 | ldx [%g2 + HV_FAULT_I_ADDR_OFFSET], %g4; \ |
| 186 | ldxa [%g1 + %g1] ASI_SCRATCHPAD, %g1;\ | 186 | ldx [%g2 + HV_FAULT_I_CTX_OFFSET], %g5; \ |
| 187 | sethi %hi(trap_block), %g5; \ | 187 | srlx %g4, 22, %g7; \ |
| 188 | sllx %g2, TRAP_BLOCK_SZ_SHIFT, %g2; \ | 188 | sllx %g5, 48, %g6; \ |
| 189 | or %g5, %lo(trap_block), %g5; \ | 189 | brz,pn %g5, kvmap_itlb_4v; \ |
| 190 | ba,pt %xcc, sun4v_itsb_miss; \ | 190 | or %g6, %g7, %g6; \ |
| 191 | add %g5, %g2, %g5; | 191 | ba,a,pt %xcc, sun4v_itsb_miss; |
| 192 | 192 | ||
| 193 | #define SUN4V_DTSB_MISS \ | 193 | #define SUN4V_DTSB_MISS \ |
| 194 | mov SCRATCHPAD_CPUID, %g1; \ | 194 | ldxa [%g0] ASI_SCRATCHPAD, %g2; \ |
| 195 | ldxa [%g1] ASI_SCRATCHPAD, %g2; \ | 195 | ldx [%g2 + HV_FAULT_D_ADDR_OFFSET], %g4; \ |
| 196 | ldxa [%g1 + %g1] ASI_SCRATCHPAD, %g1;\ | 196 | ldx [%g2 + HV_FAULT_D_CTX_OFFSET], %g5; \ |
| 197 | sethi %hi(trap_block), %g5; \ | 197 | srlx %g4, 22, %g7; \ |
| 198 | sllx %g2, TRAP_BLOCK_SZ_SHIFT, %g2; \ | 198 | sllx %g5, 48, %g6; \ |
| 199 | or %g5, %lo(trap_block), %g5; \ | 199 | brz,pn %g5, kvmap_dtlb_4v; \ |
| 200 | ba,pt %xcc, sun4v_dtsb_miss; \ | 200 | or %g6, %g7, %g6; \ |
| 201 | add %g5, %g2, %g5; | 201 | ba,a,pt %xcc, sun4v_dtsb_miss; |
| 202 | 202 | ||
| 203 | /* Before touching these macros, you owe it to yourself to go and | 203 | /* Before touching these macros, you owe it to yourself to go and |
| 204 | * see how arch/sparc64/kernel/winfixup.S works... -DaveM | 204 | * see how arch/sparc64/kernel/winfixup.S works... -DaveM |