1 /* 2 * Copyright 2019 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 */ 22 #ifndef __NVHW_DRF_H__ 23 #define __NVHW_DRF_H__ 24 25 /* Helpers common to all DRF accessors. */ 26 #define DRF_LO(drf) (0 ? drf) 27 #define DRF_HI(drf) (1 ? drf) 28 #define DRF_BITS(drf) (DRF_HI(drf) - DRF_LO(drf) + 1) 29 #define DRF_MASK(drf) (~0ULL >> (64 - DRF_BITS(drf))) 30 #define DRF_SMASK(drf) (DRF_MASK(drf) << DRF_LO(drf)) 31 32 /* Helpers for DRF-MW accessors. */ 33 #define DRF_MX_MW(drf) drf 34 #define DRF_MX(drf) DRF_MX_##drf 35 #define DRF_MW(drf) DRF_MX(drf) 36 #define DRF_MW_SPANS(o,drf) (DRF_LW_IDX((o),drf) != DRF_HW_IDX((o),drf)) 37 #define DRF_MW_SIZE(o) (sizeof((o)[0]) * 8) 38 39 #define DRF_LW_IDX(o,drf) (DRF_LO(DRF_MW(drf)) / DRF_MW_SIZE(o)) 40 #define DRF_LW_LO(o,drf) (DRF_LO(DRF_MW(drf)) % DRF_MW_SIZE(o)) 41 #define DRF_LW_HI(o,drf) (DRF_MW_SPANS((o),drf) ? (DRF_MW_SIZE(o) - 1) : DRF_HW_HI((o),drf)) 42 #define DRF_LW_BITS(o,drf) (DRF_LW_HI((o),drf) - DRF_LW_LO((o),drf) + 1) 43 #define DRF_LW_MASK(o,drf) (~0ULL >> (64 - DRF_LW_BITS((o),drf))) 44 #define DRF_LW_SMASK(o,drf) (DRF_LW_MASK((o),drf) << DRF_LW_LO((o),drf)) 45 #define DRF_LW_GET(o,drf) (((o)[DRF_LW_IDX((o),drf)] >> DRF_LW_LO((o),drf)) & DRF_LW_MASK((o),drf)) 46 #define DRF_LW_VAL(o,drf,v) (((v) & DRF_LW_MASK((o),drf)) << DRF_LW_LO((o),drf)) 47 #define DRF_LW_CLR(o,drf) ((o)[DRF_LW_IDX((o),drf)] & ~DRF_LW_SMASK((o),drf)) 48 #define DRF_LW_SET(o,drf,v) (DRF_LW_CLR((o),drf) | DRF_LW_VAL((o),drf,(v))) 49 50 #define DRF_HW_IDX(o,drf) (DRF_HI(DRF_MW(drf)) / DRF_MW_SIZE(o)) 51 #define DRF_HW_LO(o,drf) 0 52 #define DRF_HW_HI(o,drf) (DRF_HI(DRF_MW(drf)) % DRF_MW_SIZE(o)) 53 #define DRF_HW_BITS(o,drf) (DRF_HW_HI((o),drf) - DRF_HW_LO((o),drf) + 1) 54 #define DRF_HW_MASK(o,drf) (~0ULL >> (64 - DRF_HW_BITS((o),drf))) 55 #define DRF_HW_SMASK(o,drf) (DRF_HW_MASK((o),drf) << DRF_HW_LO((o),drf)) 56 #define DRF_HW_GET(o,drf) ((o)[DRF_HW_IDX(o,drf)] & DRF_HW_SMASK((o),drf)) 57 #define DRF_HW_VAL(o,drf,v) (((long long)(v) >> DRF_LW_BITS((o),drf)) & DRF_HW_SMASK((o),drf)) 58 #define DRF_HW_CLR(o,drf) ((o)[DRF_HW_IDX((o),drf)] & ~DRF_HW_SMASK((o),drf)) 59 #define DRF_HW_SET(o,drf,v) (DRF_HW_CLR((o),drf) | DRF_HW_VAL((o),drf,(v))) 60 61 /* DRF accessors. */ 62 #define NVVAL_X(drf,v) (((v) & DRF_MASK(drf)) << DRF_LO(drf)) 63 #define NVVAL_N(X,d,r,f, v) NVVAL_X(d##_##r##_##f, (v)) 64 #define NVVAL_I(X,d,r,f,i,v) NVVAL_X(d##_##r##_##f(i), (v)) 65 #define NVVAL_(X,_1,_2,_3,_4,_5,IMPL,...) IMPL 66 #define NVVAL(A...) NVVAL_(X, ##A, NVVAL_I, NVVAL_N)(X, ##A) 67 68 #define NVDEF_N(X,d,r,f, v) NVVAL_X(d##_##r##_##f, d##_##r##_##f##_##v) 69 #define NVDEF_I(X,d,r,f,i,v) NVVAL_X(d##_##r##_##f(i), d##_##r##_##f##_##v) 70 #define NVDEF_(X,_1,_2,_3,_4,_5,IMPL,...) IMPL 71 #define NVDEF(A...) NVDEF_(X, ##A, NVDEF_I, NVDEF_N)(X, ##A) 72 73 #define NVVAL_GET_X(o,drf) (((o) >> DRF_LO(drf)) & DRF_MASK(drf)) 74 #define NVVAL_GET_N(X,o,d,r,f ) NVVAL_GET_X(o, d##_##r##_##f) 75 #define NVVAL_GET_I(X,o,d,r,f,i) NVVAL_GET_X(o, d##_##r##_##f(i)) 76 #define NVVAL_GET_(X,_1,_2,_3,_4,_5,IMPL,...) IMPL 77 #define NVVAL_GET(A...) NVVAL_GET_(X, ##A, NVVAL_GET_I, NVVAL_GET_N)(X, ##A) 78 79 #define NVVAL_SET_X(o,drf,v) (((o) & ~DRF_SMASK(drf)) | NVVAL_X(drf, (v))) 80 #define NVVAL_SET_N(X,o,d,r,f, v) NVVAL_SET_X(o, d##_##r##_##f, (v)) 81 #define NVVAL_SET_I(X,o,d,r,f,i,v) NVVAL_SET_X(o, d##_##r##_##f(i), (v)) 82 #define NVVAL_SET_(X,_1,_2,_3,_4,_5,_6,IMPL,...) IMPL 83 #define NVVAL_SET(A...) NVVAL_SET_(X, ##A, NVVAL_SET_I, NVVAL_SET_N)(X, ##A) 84 85 #define NVDEF_SET_N(X,o,d,r,f, v) \ 86 NVVAL_SET_X(o, d##_##r##_##f, d##_##r##_##f##_##v) 87 #define NVDEF_SET_I(X,o,d,r,f,i,v) \ 88 NVVAL_SET_X(o, d##_##r##_##f(i), d##_##r##_##f##_##v) 89 #define NVDEF_SET_(X,_1,_2,_3,_4,_5,_6,IMPL,...) IMPL 90 #define NVDEF_SET(A...) NVDEF_SET_(X, ##A, NVDEF_SET_I, NVDEF_SET_N)(X, ##A) 91 92 /* DRF-MW accessors. */ 93 #define NVVAL_MW_GET_X(o,drf) \ 94 ((DRF_MW_SPANS((o),drf) ? \ 95 (DRF_HW_GET((o),drf) << DRF_LW_BITS((o),drf)) : 0) | DRF_LW_GET((o),drf)) 96 #define NVVAL_MW_GET_N(X,o,d,r,f ) NVVAL_MW_GET_X((o), d##_##r##_##f) 97 #define NVVAL_MW_GET_I(X,o,d,r,f,i) NVVAL_MW_GET_X((o), d##_##r##_##f(i)) 98 #define NVVAL_MW_GET_(X,_1,_2,_3,_4,_5,IMPL,...) IMPL 99 #define NVVAL_MW_GET(A...) NVVAL_MW_GET_(X, ##A, NVVAL_MW_GET_I, NVVAL_MW_GET_N)(X, ##A) 100 101 #define NVVAL_MW_SET_X(o,drf,v) do { \ 102 (o)[DRF_LW_IDX((o),drf)] = DRF_LW_SET((o),drf,(v)); \ 103 if (DRF_MW_SPANS((o),drf)) \ 104 (o)[DRF_HW_IDX((o),drf)] = DRF_HW_SET((o),drf,(v)); \ 105 } while(0) 106 #define NVVAL_MW_SET_N(X,o,d,r,f, v) NVVAL_MW_SET_X((o), d##_##r##_##f, (v)) 107 #define NVVAL_MW_SET_I(X,o,d,r,f,i,v) NVVAL_MW_SET_X((o), d##_##r##_##f(i), (v)) 108 #define NVVAL_MW_SET_(X,_1,_2,_3,_4,_5,_6,IMPL,...) IMPL 109 #define NVVAL_MW_SET(A...) \ 110 NVVAL_MW_SET_(X, ##A, NVVAL_MW_SET_I, NVVAL_MW_SET_N)(X, ##A) 111 112 #define NVDEF_MW_SET_N(X,o,d,r,f, v) \ 113 NVVAL_MW_SET_X(o, d##_##r##_##f, d##_##r##_##f##_##v) 114 #define NVDEF_MW_SET_I(X,o,d,r,f,i,v) \ 115 NVVAL_MW_SET_X(o, d##_##r##_##f(i), d##_##r##_##f##_##v) 116 #define NVDEF_MW_SET_(X,_1,_2,_3,_4,_5,_6,IMPL,...) IMPL 117 #define NVDEF_MW_SET(A...) \ 118 NVDEF_MW_SET_(X, ##A, NVDEF_MW_SET_I, NVDEF_MW_SET_N)(X, ##A) 119 #endif 120