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author | Rusty Russell <rusty@rustcorp.com.au> | 2008-12-31 07:35:57 -0500 |
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committer | Rusty Russell <rusty@rustcorp.com.au> | 2008-12-31 07:35:57 -0500 |
commit | 2ca1a615835d9f4990f42102ab1f2ef434e7e89c (patch) | |
tree | 726cf3d5f29a6c66c44e4bd68e7ebed2fd83d059 /arch/sparc/kernel/dtlb_miss.S | |
parent | e12f0102ac81d660c9f801d0a0e10ccf4537a9de (diff) | |
parent | 6a94cb73064c952255336cc57731904174b2c58f (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
arch/x86/kernel/io_apic.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 @@ | |||
1 | /* DTLB ** ICACHE line 1: Context 0 check and TSB load */ | ||
2 | ldxa [%g0] ASI_DMMU_TSB_8KB_PTR, %g1 ! Get TSB 8K pointer | ||
3 | ldxa [%g0] ASI_DMMU, %g6 ! Get TAG TARGET | ||
4 | srlx %g6, 48, %g5 ! Get context | ||
5 | sllx %g6, 22, %g6 ! Zero out context | ||
6 | brz,pn %g5, kvmap_dtlb ! Context 0 processing | ||
7 | srlx %g6, 22, %g6 ! Delay slot | ||
8 | TSB_LOAD_QUAD(%g1, %g4) ! Load TSB entry | ||
9 | cmp %g4, %g6 ! Compare TAG | ||
10 | |||
11 | /* DTLB ** ICACHE line 2: TSB compare and TLB load */ | ||
12 | bne,pn %xcc, tsb_miss_dtlb ! Miss | ||
13 | mov FAULT_CODE_DTLB, %g3 | ||
14 | stxa %g5, [%g0] ASI_DTLB_DATA_IN ! Load TLB | ||
15 | retry ! Trap done | ||
16 | nop | ||
17 | nop | ||
18 | nop | ||
19 | nop | ||
20 | |||
21 | /* DTLB ** ICACHE line 3: */ | ||
22 | nop | ||
23 | nop | ||
24 | nop | ||
25 | nop | ||
26 | nop | ||
27 | nop | ||
28 | nop | ||
29 | nop | ||
30 | |||
31 | /* DTLB ** ICACHE line 4: */ | ||
32 | nop | ||
33 | nop | ||
34 | nop | ||
35 | nop | ||
36 | nop | ||
37 | nop | ||
38 | nop | ||
39 | nop | ||