projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 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__ */ |