| /trunk/kernel/arch/sparc64/include/trap/mmu.h |
|---|
| 60,7 → 60,6 |
| /* |
| * First, try to refill TLB from TSB. |
| */ |
| #ifdef CONFIG_TSB |
| ldxa [%g0] ASI_IMMU, %g1 ! read TSB Tag Target Register |
| ldxa [%g0] ASI_IMMU_TSB_8KB_PTR_REG, %g2 ! read TSB 8K Pointer |
| 84,7 → 83,7 |
| #ifdef CONFIG_TSB |
| ldxa [%g0] ASI_DMMU, %g1 ! read TSB Tag Target Register |
| srlx %g1, TSB_TAG_TARGET_CONTEXT_SHIFT, %g2 ! is this kernel miss? |
| srlx %g1, TSB_TAG_TARGET_CONTEXT_SHIFT, %g2 ! is this a kernel miss? |
| brz,pn %g2, 0f |
| ldxa [%g0] ASI_DMMU_TSB_8KB_PTR_REG, %g3 ! read TSB 8K Pointer |
| ldda [%g3] ASI_NUCLEUS_QUAD_LDD, %g4 ! 16-byte atomic load into %g4 and %g5 |
| /trunk/kernel/arch/sparc64/include/mm/tsb.h |
|---|
| 42,7 → 42,7 |
| * again, is nice because TSBs need to be locked |
| * in TLBs - only one TLB entry will do. |
| */ |
| #define TSB_SIZE 2 /* when changing this, change as.c as well */ |
| #define TSB_SIZE 2 /* when changing this, change as.c as well */ |
| #define ITSB_ENTRY_COUNT (512*(1<<TSB_SIZE)) |
| #define DTSB_ENTRY_COUNT (512*(1<<TSB_SIZE)) |
| /trunk/kernel/arch/sparc64/src/start.S |
|---|
| 67,7 → 67,7 |
| * Setup basic runtime environment. |
| */ |
| wrpr %g0, NWINDOWS - 2, %cansave ! set maximum saveable windows |
| wrpr %g0, NWINDOWS - 2, %cansave ! set maximum saveable windows |
| wrpr %g0, 0, %canrestore ! get rid of windows we will never need again |
| wrpr %g0, 0, %otherwin ! make sure the window state is consistent |
| wrpr %g0, NWINDOWS - 1, %cleanwin ! prevent needless clean_window traps for kernel |