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| author | David Woodhouse <David.Woodhouse@intel.com> | 2009-01-05 12:50:33 +0300 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-01-05 12:50:33 +0300 |
| commit | 353816f43d1fb340ff2d9a911dd5d0799c09f6a5 (patch) | |
| tree | 517290fd884d286fe2971137ac89f89e3567785a /arch/sparc/kernel/dtlb_miss.S | |
| parent | 160bbab3000dafccbe43688e48208cecf4deb879 (diff) | |
| parent | fe0bdec68b77020281dc814805edfe594ae89e0f (diff) | |
| download | linux-353816f43d1fb340ff2d9a911dd5d0799c09f6a5.tar.xz | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
arch/arm/mach-pxa/corgi.c
arch/arm/mach-pxa/poodle.c
arch/arm/mach-pxa/spitz.c
Diffstat (limited to 'arch/sparc/kernel/dtlb_miss.S')
| -rw-r--r-- | arch/sparc/kernel/dtlb_miss.S | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/sparc/kernel/dtlb_miss.S b/arch/sparc/kernel/dtlb_miss.S new file mode 100644 index 000000000000..09a6a15a7105 --- /dev/null +++ b/arch/sparc/kernel/dtlb_miss.S @@ -0,0 +1,39 @@ +/* DTLB ** ICACHE line 1: Context 0 check and TSB load */ + ldxa [%g0] ASI_DMMU_TSB_8KB_PTR, %g1 ! Get TSB 8K pointer + ldxa [%g0] ASI_DMMU, %g6 ! Get TAG TARGET + srlx %g6, 48, %g5 ! Get context + sllx %g6, 22, %g6 ! Zero out context + brz,pn %g5, kvmap_dtlb ! Context 0 processing + srlx %g6, 22, %g6 ! Delay slot + TSB_LOAD_QUAD(%g1, %g4) ! Load TSB entry + cmp %g4, %g6 ! Compare TAG + +/* DTLB ** ICACHE line 2: TSB compare and TLB load */ + bne,pn %xcc, tsb_miss_dtlb ! Miss + mov FAULT_CODE_DTLB, %g3 + stxa %g5, [%g0] ASI_DTLB_DATA_IN ! Load TLB + retry ! Trap done + nop + nop + nop + nop + +/* DTLB ** ICACHE line 3: */ + nop + nop + nop + nop + nop + nop + nop + nop + +/* DTLB ** ICACHE line 4: */ + nop + nop + nop + nop + nop + nop + nop + nop |