1 /* 2 * Copyright 2014 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 * Authors: Ben Skeggs 23 */ 24 #include "priv.h" 25 26 #include <subdev/fb.h> 27 #include <subdev/timer.h> 28 29 void 30 gm107_ltc_cbc_clear(struct nvkm_ltc *ltc, u32 start, u32 limit) 31 { 32 struct nvkm_device *device = ltc->subdev.device; 33 nvkm_wr32(device, 0x17e270, start); 34 nvkm_wr32(device, 0x17e274, limit); 35 nvkm_mask(device, 0x17e26c, 0x00000000, 0x00000004); 36 } 37 38 void 39 gm107_ltc_cbc_wait(struct nvkm_ltc *ltc) 40 { 41 struct nvkm_device *device = ltc->subdev.device; 42 int c, s; 43 for (c = 0; c < ltc->ltc_nr; c++) { 44 for (s = 0; s < ltc->lts_nr; s++) { 45 const u32 addr = 0x14046c + (c * 0x2000) + (s * 0x200); 46 nvkm_wait_msec(device, 2000, addr, 47 0x00000004, 0x00000000); 48 } 49 } 50 } 51 52 void 53 gm107_ltc_zbc_clear_color(struct nvkm_ltc *ltc, int i, const u32 color[4]) 54 { 55 struct nvkm_device *device = ltc->subdev.device; 56 nvkm_mask(device, 0x17e338, 0x0000000f, i); 57 nvkm_wr32(device, 0x17e33c, color[0]); 58 nvkm_wr32(device, 0x17e340, color[1]); 59 nvkm_wr32(device, 0x17e344, color[2]); 60 nvkm_wr32(device, 0x17e348, color[3]); 61 } 62 63 void 64 gm107_ltc_zbc_clear_depth(struct nvkm_ltc *ltc, int i, const u32 depth) 65 { 66 struct nvkm_device *device = ltc->subdev.device; 67 nvkm_mask(device, 0x17e338, 0x0000000f, i); 68 nvkm_wr32(device, 0x17e34c, depth); 69 } 70 71 void 72 gm107_ltc_intr_lts(struct nvkm_ltc *ltc, int c, int s) 73 { 74 struct nvkm_subdev *subdev = <c->subdev; 75 struct nvkm_device *device = subdev->device; 76 u32 base = 0x140400 + (c * 0x2000) + (s * 0x200); 77 u32 intr = nvkm_rd32(device, base + 0x00c); 78 u16 stat = intr & 0x0000ffff; 79 char msg[128]; 80 81 if (stat) { 82 nvkm_snprintbf(msg, sizeof(msg), gf100_ltc_lts_intr_name, stat); 83 nvkm_error(subdev, "LTC%d_LTS%d: %08x [%s]\n", c, s, intr, msg); 84 } 85 86 nvkm_wr32(device, base + 0x00c, intr); 87 } 88 89 void 90 gm107_ltc_intr(struct nvkm_ltc *ltc) 91 { 92 struct nvkm_device *device = ltc->subdev.device; 93 u32 mask; 94 95 mask = nvkm_rd32(device, 0x00017c); 96 while (mask) { 97 u32 s, c = __ffs(mask); 98 for (s = 0; s < ltc->lts_nr; s++) 99 gm107_ltc_intr_lts(ltc, c, s); 100 mask &= ~(1 << c); 101 } 102 } 103 104 static int 105 gm107_ltc_oneinit(struct nvkm_ltc *ltc) 106 { 107 struct nvkm_device *device = ltc->subdev.device; 108 const u32 parts = nvkm_rd32(device, 0x022438); 109 const u32 mask = nvkm_rd32(device, 0x021c14); 110 const u32 slice = nvkm_rd32(device, 0x17e280) >> 28; 111 int i; 112 113 for (i = 0; i < parts; i++) { 114 if (!(mask & (1 << i))) 115 ltc->ltc_nr++; 116 } 117 ltc->lts_nr = slice; 118 119 return gf100_ltc_oneinit_tag_ram(ltc); 120 } 121 122 static void 123 gm107_ltc_init(struct nvkm_ltc *ltc) 124 { 125 struct nvkm_device *device = ltc->subdev.device; 126 u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001); 127 128 nvkm_wr32(device, 0x17e27c, ltc->ltc_nr); 129 nvkm_wr32(device, 0x17e278, ltc->tag_base); 130 nvkm_mask(device, 0x17e264, 0x00000002, lpg128 ? 0x00000002 : 0x00000000); 131 } 132 133 static const struct nvkm_ltc_func 134 gm107_ltc = { 135 .oneinit = gm107_ltc_oneinit, 136 .init = gm107_ltc_init, 137 .intr = gm107_ltc_intr, 138 .cbc_clear = gm107_ltc_cbc_clear, 139 .cbc_wait = gm107_ltc_cbc_wait, 140 .zbc = 16, 141 .zbc_clear_color = gm107_ltc_zbc_clear_color, 142 .zbc_clear_depth = gm107_ltc_zbc_clear_depth, 143 .invalidate = gf100_ltc_invalidate, 144 .flush = gf100_ltc_flush, 145 }; 146 147 int 148 gm107_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, 149 struct nvkm_ltc **pltc) 150 { 151 return nvkm_ltc_new_(&gm107_ltc, device, type, inst, pltc); 152 } 153