1 /* 2 * Copyright 2012 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 const struct nvkm_mc_map 27 nv04_mc_reset[] = { 28 { 0x00001000, NVKM_ENGINE_GR }, 29 { 0x00000100, NVKM_ENGINE_FIFO }, 30 {} 31 }; 32 33 static void 34 nv04_mc_device_disable(struct nvkm_mc *mc, u32 mask) 35 { 36 nvkm_mask(mc->subdev.device, 0x000200, mask, 0x00000000); 37 } 38 39 static void 40 nv04_mc_device_enable(struct nvkm_mc *mc, u32 mask) 41 { 42 struct nvkm_device *device = mc->subdev.device; 43 44 nvkm_mask(device, 0x000200, mask, mask); 45 nvkm_rd32(device, 0x000200); 46 } 47 48 static bool 49 nv04_mc_device_enabled(struct nvkm_mc *mc, u32 mask) 50 { 51 return (nvkm_rd32(mc->subdev.device, 0x000200) & mask) == mask; 52 } 53 54 const struct nvkm_mc_device_func 55 nv04_mc_device = { 56 .enabled = nv04_mc_device_enabled, 57 .enable = nv04_mc_device_enable, 58 .disable = nv04_mc_device_disable, 59 }; 60 61 static const struct nvkm_intr_data 62 nv04_mc_intrs[] = { 63 { NVKM_ENGINE_DISP , 0, 0, 0x01010000, true }, 64 { NVKM_ENGINE_GR , 0, 0, 0x00001000, true }, 65 { NVKM_ENGINE_FIFO , 0, 0, 0x00000100 }, 66 { NVKM_SUBDEV_BUS , 0, 0, 0x10000000, true }, 67 { NVKM_SUBDEV_TIMER, 0, 0, 0x00100000, true }, 68 {} 69 }; 70 71 void 72 nv04_mc_intr_rearm(struct nvkm_intr *intr) 73 { 74 struct nvkm_mc *mc = container_of(intr, typeof(*mc), intr); 75 int leaf; 76 77 for (leaf = 0; leaf < intr->leaves; leaf++) 78 nvkm_wr32(mc->subdev.device, 0x000140 + (leaf * 4), 0x00000001); 79 } 80 81 void 82 nv04_mc_intr_unarm(struct nvkm_intr *intr) 83 { 84 struct nvkm_mc *mc = container_of(intr, typeof(*mc), intr); 85 int leaf; 86 87 for (leaf = 0; leaf < intr->leaves; leaf++) 88 nvkm_wr32(mc->subdev.device, 0x000140 + (leaf * 4), 0x00000000); 89 90 nvkm_rd32(mc->subdev.device, 0x000140); 91 } 92 93 bool 94 nv04_mc_intr_pending(struct nvkm_intr *intr) 95 { 96 struct nvkm_mc *mc = container_of(intr, typeof(*mc), intr); 97 bool pending = false; 98 int leaf; 99 100 for (leaf = 0; leaf < intr->leaves; leaf++) { 101 intr->stat[leaf] = nvkm_rd32(mc->subdev.device, 0x000100 + (leaf * 4)); 102 if (intr->stat[leaf]) 103 pending = true; 104 } 105 106 return pending; 107 } 108 109 const struct nvkm_intr_func 110 nv04_mc_intr = { 111 .pending = nv04_mc_intr_pending, 112 .unarm = nv04_mc_intr_unarm, 113 .rearm = nv04_mc_intr_rearm, 114 }; 115 116 void 117 nv04_mc_init(struct nvkm_mc *mc) 118 { 119 struct nvkm_device *device = mc->subdev.device; 120 nvkm_wr32(device, 0x000200, 0xffffffff); /* everything enabled */ 121 nvkm_wr32(device, 0x001850, 0x00000001); /* disable rom access */ 122 } 123 124 static const struct nvkm_mc_func 125 nv04_mc = { 126 .init = nv04_mc_init, 127 .intr = &nv04_mc_intr, 128 .intrs = nv04_mc_intrs, 129 .device = &nv04_mc_device, 130 .reset = nv04_mc_reset, 131 }; 132 133 int 134 nv04_mc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc) 135 { 136 return nvkm_mc_new_(&nv04_mc, device, type, inst, pmc); 137 } 138