diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-sparc/swift.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-sparc/swift.h')
-rw-r--r-- | include/asm-sparc/swift.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/include/asm-sparc/swift.h b/include/asm-sparc/swift.h new file mode 100644 index 000000000000..e535061bf755 --- /dev/null +++ b/include/asm-sparc/swift.h | |||
@@ -0,0 +1,106 @@ | |||
1 | /* swift.h: Specific definitions for the _broken_ Swift SRMMU | ||
2 | * MMU module. | ||
3 | * | ||
4 | * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) | ||
5 | */ | ||
6 | |||
7 | #ifndef _SPARC_SWIFT_H | ||
8 | #define _SPARC_SWIFT_H | ||
9 | |||
10 | /* Swift is so brain damaged, here is the mmu control register. */ | ||
11 | #define SWIFT_ST 0x00800000 /* SW tablewalk enable */ | ||
12 | #define SWIFT_WP 0x00400000 /* Watchpoint enable */ | ||
13 | |||
14 | /* Branch folding (buggy, disable on production systems!) */ | ||
15 | #define SWIFT_BF 0x00200000 | ||
16 | #define SWIFT_PMC 0x00180000 /* Page mode control */ | ||
17 | #define SWIFT_PE 0x00040000 /* Parity enable */ | ||
18 | #define SWIFT_PC 0x00020000 /* Parity control */ | ||
19 | #define SWIFT_AP 0x00010000 /* Graphics page mode control (TCX/SX) */ | ||
20 | #define SWIFT_AC 0x00008000 /* Alternate Cacheability (see viking.h) */ | ||
21 | #define SWIFT_BM 0x00004000 /* Boot mode */ | ||
22 | #define SWIFT_RC 0x00003c00 /* DRAM refresh control */ | ||
23 | #define SWIFT_IE 0x00000200 /* Instruction cache enable */ | ||
24 | #define SWIFT_DE 0x00000100 /* Data cache enable */ | ||
25 | #define SWIFT_SA 0x00000080 /* Store Allocate */ | ||
26 | #define SWIFT_NF 0x00000002 /* No fault mode */ | ||
27 | #define SWIFT_EN 0x00000001 /* MMU enable */ | ||
28 | |||
29 | /* Bits [13:5] select one of 512 instruction cache tags */ | ||
30 | static inline void swift_inv_insn_tag(unsigned long addr) | ||
31 | { | ||
32 | __asm__ __volatile__("sta %%g0, [%0] %1\n\t" | ||
33 | : /* no outputs */ | ||
34 | : "r" (addr), "i" (ASI_M_TXTC_TAG) | ||
35 | : "memory"); | ||
36 | } | ||
37 | |||
38 | /* Bits [12:4] select one of 512 data cache tags */ | ||
39 | static inline void swift_inv_data_tag(unsigned long addr) | ||
40 | { | ||
41 | __asm__ __volatile__("sta %%g0, [%0] %1\n\t" | ||
42 | : /* no outputs */ | ||
43 | : "r" (addr), "i" (ASI_M_DATAC_TAG) | ||
44 | : "memory"); | ||
45 | } | ||
46 | |||
47 | static inline void swift_flush_dcache(void) | ||
48 | { | ||
49 | unsigned long addr; | ||
50 | |||
51 | for (addr = 0; addr < 0x2000; addr += 0x10) | ||
52 | swift_inv_data_tag(addr); | ||
53 | } | ||
54 | |||
55 | static inline void swift_flush_icache(void) | ||
56 | { | ||
57 | unsigned long addr; | ||
58 | |||
59 | for (addr = 0; addr < 0x4000; addr += 0x20) | ||
60 | swift_inv_insn_tag(addr); | ||
61 | } | ||
62 | |||
63 | static inline void swift_idflash_clear(void) | ||
64 | { | ||
65 | unsigned long addr; | ||
66 | |||
67 | for (addr = 0; addr < 0x2000; addr += 0x10) { | ||
68 | swift_inv_insn_tag(addr<<1); | ||
69 | swift_inv_data_tag(addr); | ||
70 | } | ||
71 | } | ||
72 | |||
73 | /* Swift is so broken, it isn't even safe to use the following. */ | ||
74 | static inline void swift_flush_page(unsigned long page) | ||
75 | { | ||
76 | __asm__ __volatile__("sta %%g0, [%0] %1\n\t" | ||
77 | : /* no outputs */ | ||
78 | : "r" (page), "i" (ASI_M_FLUSH_PAGE) | ||
79 | : "memory"); | ||
80 | } | ||
81 | |||
82 | static inline void swift_flush_segment(unsigned long addr) | ||
83 | { | ||
84 | __asm__ __volatile__("sta %%g0, [%0] %1\n\t" | ||
85 | : /* no outputs */ | ||
86 | : "r" (addr), "i" (ASI_M_FLUSH_SEG) | ||
87 | : "memory"); | ||
88 | } | ||
89 | |||
90 | static inline void swift_flush_region(unsigned long addr) | ||
91 | { | ||
92 | __asm__ __volatile__("sta %%g0, [%0] %1\n\t" | ||
93 | : /* no outputs */ | ||
94 | : "r" (addr), "i" (ASI_M_FLUSH_REGION) | ||
95 | : "memory"); | ||
96 | } | ||
97 | |||
98 | static inline void swift_flush_context(void) | ||
99 | { | ||
100 | __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t" | ||
101 | : /* no outputs */ | ||
102 | : "i" (ASI_M_FLUSH_CTX) | ||
103 | : "memory"); | ||
104 | } | ||
105 | |||
106 | #endif /* !(_SPARC_SWIFT_H) */ | ||