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authorSam Ravnborg <sam@ravnborg.org>2008-12-03 06:11:52 -0500
committerDavid S. Miller <davem@davemloft.net>2008-12-04 12:17:21 -0500
commita88b5ba8bd8ac18aad65ee6c6a254e2e74876db3 (patch)
treeeb3d0ffaf53c3f7ec6083752c2097cecd1cb892a /arch/sparc64/kernel/dtlb_prot.S
parentd670bd4f803c8b646acd20f3ba21e65458293faf (diff)
sparc,sparc64: unify kernel/
o Move all files from sparc64/kernel/ to sparc/kernel - rename as appropriate o Update sparc/Makefile to the changes o Update sparc/kernel/Makefile to include the sparc64 files NOTE: This commit changes link order on sparc64! Link order had to change for either of sparc32 and sparc64. And assuming sparc64 see more testing than sparc32 change link order on sparc64 where issues will be caught faster. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/dtlb_prot.S')
-rw-r--r--arch/sparc64/kernel/dtlb_prot.S54
1 files changed, 0 insertions, 54 deletions
diff --git a/arch/sparc64/kernel/dtlb_prot.S b/arch/sparc64/kernel/dtlb_prot.S
deleted file mode 100644
index b2c2c5be281c..000000000000
--- a/arch/sparc64/kernel/dtlb_prot.S
+++ /dev/null
@@ -1,54 +0,0 @@
1/*
2 * dtlb_prot.S: DTLB protection trap strategy.
3 * This is included directly into the trap table.
4 *
5 * Copyright (C) 1996,1998 David S. Miller (davem@redhat.com)
6 * Copyright (C) 1997,1998 Jakub Jelinek (jj@ultra.linux.cz)
7 */
8
9/* Ways we can get here:
10 *
11 * [TL == 0] 1) User stores to readonly pages.
12 * [TL == 0] 2) Nucleus stores to user readonly pages.
13 * [TL > 0] 3) Nucleus stores to user readonly stack frame.
14 */
15
16/* PROT ** ICACHE line 1: User DTLB protection trap */
17 mov TLB_SFSR, %g1
18 stxa %g0, [%g1] ASI_DMMU ! Clear FaultValid bit
19 membar #Sync ! Synchronize stores
20 rdpr %pstate, %g5 ! Move into alt-globals
21 wrpr %g5, PSTATE_AG|PSTATE_MG, %pstate
22 rdpr %tl, %g1 ! Need a winfixup?
23 cmp %g1, 1 ! Trap level >1?
24 mov TLB_TAG_ACCESS, %g4 ! For reload of vaddr
25
26/* PROT ** ICACHE line 2: More real fault processing */
27 bgu,pn %xcc, winfix_trampoline ! Yes, perform winfixup
28 ldxa [%g4] ASI_DMMU, %g5 ! Put tagaccess in %g5
29 ba,pt %xcc, sparc64_realfault_common ! Nope, normal fault
30 mov FAULT_CODE_DTLB | FAULT_CODE_WRITE, %g4
31 nop
32 nop
33 nop
34 nop
35
36/* PROT ** ICACHE line 3: Unused... */
37 nop
38 nop
39 nop
40 nop
41 nop
42 nop
43 nop
44 nop
45
46/* PROT ** ICACHE line 4: Unused... */
47 nop
48 nop
49 nop
50 nop
51 nop
52 nop
53 nop
54 nop