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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
51533b61 MS |
2 | #ifndef __SUPP_REG_H__ |
3 | #define __SUPP_REG_H__ | |
4 | ||
5 | /* Macros for reading and writing support/special registers. */ | |
6 | ||
7 | #ifndef STRINGIFYFY | |
8 | #define STRINGIFYFY(i) #i | |
9 | #endif | |
10 | ||
11 | #ifndef STRINGIFY | |
12 | #define STRINGIFY(i) STRINGIFYFY(i) | |
13 | #endif | |
14 | ||
15 | #define SPEC_REG_BZ "BZ" | |
16 | #define SPEC_REG_VR "VR" | |
17 | #define SPEC_REG_PID "PID" | |
18 | #define SPEC_REG_SRS "SRS" | |
19 | #define SPEC_REG_WZ "WZ" | |
20 | #define SPEC_REG_EXS "EXS" | |
21 | #define SPEC_REG_EDA "EDA" | |
22 | #define SPEC_REG_MOF "MOF" | |
23 | #define SPEC_REG_DZ "DZ" | |
24 | #define SPEC_REG_EBP "EBP" | |
25 | #define SPEC_REG_ERP "ERP" | |
26 | #define SPEC_REG_SRP "SRP" | |
27 | #define SPEC_REG_NRP "NRP" | |
28 | #define SPEC_REG_CCS "CCS" | |
29 | #define SPEC_REG_USP "USP" | |
30 | #define SPEC_REG_SPC "SPC" | |
31 | ||
32 | #define RW_MM_CFG 0 | |
33 | #define RW_MM_KBASE_LO 1 | |
34 | #define RW_MM_KBASE_HI 2 | |
35 | #define RW_MM_CAUSE 3 | |
36 | #define RW_MM_TLB_SEL 4 | |
37 | #define RW_MM_TLB_LO 5 | |
38 | #define RW_MM_TLB_HI 6 | |
39 | #define RW_MM_TLB_PGD 7 | |
40 | ||
41 | #define BANK_GC 0 | |
42 | #define BANK_IM 1 | |
43 | #define BANK_DM 2 | |
44 | #define BANK_BP 3 | |
45 | ||
46 | #define RW_GC_CFG 0 | |
47 | #define RW_GC_CCS 1 | |
48 | #define RW_GC_SRS 2 | |
49 | #define RW_GC_NRP 3 | |
50 | #define RW_GC_EXS 4 | |
51 | #define RW_GC_R0 8 | |
52 | #define RW_GC_R1 9 | |
53 | ||
54 | #define SPEC_REG_WR(r,v) \ | |
55 | __asm__ __volatile__ ("move %0, $" r : : "r" (v)); | |
56 | ||
57 | #define SPEC_REG_RD(r,v) \ | |
58 | __asm__ __volatile__ ("move $" r ",%0" : "=r" (v)); | |
59 | ||
60 | #define NOP() \ | |
61 | __asm__ __volatile__ ("nop"); | |
62 | ||
63 | #define SUPP_BANK_SEL(b) \ | |
64 | SPEC_REG_WR(SPEC_REG_SRS,b); \ | |
65 | NOP(); \ | |
66 | NOP(); \ | |
67 | NOP(); | |
68 | ||
69 | #define SUPP_REG_WR(r,v) \ | |
70 | __asm__ __volatile__ ("move %0, $S" STRINGIFYFY(r) "\n\t" \ | |
71 | "nop\n\t" \ | |
72 | "nop\n\t" \ | |
73 | "nop\n\t" \ | |
74 | : : "r" (v)); | |
75 | ||
76 | #define SUPP_REG_RD(r,v) \ | |
77 | __asm__ __volatile__ ("move $S" STRINGIFYFY(r) ",%0" : "=r" (v)); | |
78 | ||
79 | #endif /* __SUPP_REG_H__ */ |