1 /* 2 * Copyright 2018 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 #include "priv.h" 23 24 #include <core/memory.h> 25 #include <subdev/mmu.h> 26 #include <engine/fifo.h> 27 28 static void 29 gv100_fault_buffer_process(struct nvkm_fault_buffer *buffer) 30 { 31 struct nvkm_device *device = buffer->fault->subdev.device; 32 struct nvkm_memory *mem = buffer->mem; 33 const u32 foff = buffer->id * 0x14; 34 u32 get = nvkm_rd32(device, 0x100e2c + foff); 35 u32 put = nvkm_rd32(device, 0x100e30 + foff); 36 if (put == get) 37 return; 38 39 nvkm_kmap(mem); 40 while (get != put) { 41 const u32 base = get * buffer->fault->func->buffer.entry_size; 42 const u32 instlo = nvkm_ro32(mem, base + 0x00); 43 const u32 insthi = nvkm_ro32(mem, base + 0x04); 44 const u32 addrlo = nvkm_ro32(mem, base + 0x08); 45 const u32 addrhi = nvkm_ro32(mem, base + 0x0c); 46 const u32 timelo = nvkm_ro32(mem, base + 0x10); 47 const u32 timehi = nvkm_ro32(mem, base + 0x14); 48 const u32 info0 = nvkm_ro32(mem, base + 0x18); 49 const u32 info1 = nvkm_ro32(mem, base + 0x1c); 50 struct nvkm_fault_data info; 51 52 if (++get == buffer->entries) 53 get = 0; 54 nvkm_wr32(device, 0x100e2c + foff, get); 55 56 info.addr = ((u64)addrhi << 32) | addrlo; 57 info.inst = ((u64)insthi << 32) | instlo; 58 info.time = ((u64)timehi << 32) | timelo; 59 info.engine = (info0 & 0x000000ff); 60 info.valid = (info1 & 0x80000000) >> 31; 61 info.gpc = (info1 & 0x1f000000) >> 24; 62 info.hub = (info1 & 0x00100000) >> 20; 63 info.access = (info1 & 0x000f0000) >> 16; 64 info.client = (info1 & 0x00007f00) >> 8; 65 info.reason = (info1 & 0x0000001f); 66 67 nvkm_fifo_fault(device->fifo, &info); 68 } 69 nvkm_done(mem); 70 } 71 72 static void 73 gv100_fault_buffer_fini(struct nvkm_fault_buffer *buffer) 74 { 75 struct nvkm_device *device = buffer->fault->subdev.device; 76 const u32 intr = buffer->id ? 0x08000000 : 0x20000000; 77 const u32 foff = buffer->id * 0x14; 78 79 nvkm_mask(device, 0x100a34, intr, intr); 80 nvkm_mask(device, 0x100e34 + foff, 0x80000000, 0x00000000); 81 } 82 83 static void 84 gv100_fault_buffer_init(struct nvkm_fault_buffer *buffer) 85 { 86 struct nvkm_device *device = buffer->fault->subdev.device; 87 const u32 intr = buffer->id ? 0x08000000 : 0x20000000; 88 const u32 foff = buffer->id * 0x14; 89 90 nvkm_mask(device, 0x100e34 + foff, 0xc0000000, 0x40000000); 91 nvkm_wr32(device, 0x100e28 + foff, upper_32_bits(buffer->vma->addr)); 92 nvkm_wr32(device, 0x100e24 + foff, lower_32_bits(buffer->vma->addr)); 93 nvkm_mask(device, 0x100e34 + foff, 0x80000000, 0x80000000); 94 nvkm_mask(device, 0x100a2c, intr, intr); 95 } 96 97 static u32 98 gv100_fault_buffer_entries(struct nvkm_fault_buffer *buffer) 99 { 100 struct nvkm_device *device = buffer->fault->subdev.device; 101 const u32 foff = buffer->id * 0x14; 102 nvkm_mask(device, 0x100e34 + foff, 0x40000000, 0x40000000); 103 return nvkm_rd32(device, 0x100e34 + foff) & 0x000fffff; 104 } 105 106 static int 107 gv100_fault_ntfy_nrpfb(struct nvkm_notify *notify) 108 { 109 struct nvkm_fault *fault = container_of(notify, typeof(*fault), nrpfb); 110 gv100_fault_buffer_process(fault->buffer[0]); 111 return NVKM_NOTIFY_KEEP; 112 } 113 114 static void 115 gv100_fault_intr_fault(struct nvkm_fault *fault) 116 { 117 struct nvkm_subdev *subdev = &fault->subdev; 118 struct nvkm_device *device = subdev->device; 119 struct nvkm_fault_data info; 120 const u32 addrlo = nvkm_rd32(device, 0x100e4c); 121 const u32 addrhi = nvkm_rd32(device, 0x100e50); 122 const u32 info0 = nvkm_rd32(device, 0x100e54); 123 const u32 insthi = nvkm_rd32(device, 0x100e58); 124 const u32 info1 = nvkm_rd32(device, 0x100e5c); 125 126 info.addr = ((u64)addrhi << 32) | addrlo; 127 info.inst = ((u64)insthi << 32) | (info0 & 0xfffff000); 128 info.time = 0; 129 info.engine = (info0 & 0x000000ff); 130 info.valid = (info1 & 0x80000000) >> 31; 131 info.gpc = (info1 & 0x1f000000) >> 24; 132 info.hub = (info1 & 0x00100000) >> 20; 133 info.access = (info1 & 0x000f0000) >> 16; 134 info.client = (info1 & 0x00007f00) >> 8; 135 info.reason = (info1 & 0x0000001f); 136 137 nvkm_fifo_fault(device->fifo, &info); 138 } 139 140 static void 141 gv100_fault_intr(struct nvkm_fault *fault) 142 { 143 struct nvkm_subdev *subdev = &fault->subdev; 144 struct nvkm_device *device = subdev->device; 145 u32 stat = nvkm_rd32(device, 0x100a20); 146 147 if (stat & 0x80000000) { 148 gv100_fault_intr_fault(fault); 149 nvkm_wr32(device, 0x100e60, 0x80000000); 150 stat &= ~0x80000000; 151 } 152 153 if (stat & 0x20000000) { 154 if (fault->buffer[0]) { 155 nvkm_event_send(&fault->event, 1, 0, NULL, 0); 156 stat &= ~0x20000000; 157 } 158 } 159 160 if (stat) { 161 nvkm_debug(subdev, "intr %08x\n", stat); 162 } 163 } 164 165 static void 166 gv100_fault_fini(struct nvkm_fault *fault) 167 { 168 nvkm_notify_put(&fault->nrpfb); 169 nvkm_mask(fault->subdev.device, 0x100a34, 0x80000000, 0x80000000); 170 } 171 172 static void 173 gv100_fault_init(struct nvkm_fault *fault) 174 { 175 nvkm_mask(fault->subdev.device, 0x100a2c, 0x80000000, 0x80000000); 176 nvkm_notify_get(&fault->nrpfb); 177 } 178 179 static int 180 gv100_fault_oneinit(struct nvkm_fault *fault) 181 { 182 return nvkm_notify_init(&fault->buffer[0]->object, &fault->event, 183 gv100_fault_ntfy_nrpfb, false, NULL, 0, 0, 184 &fault->nrpfb); 185 } 186 187 static const struct nvkm_fault_func 188 gv100_fault = { 189 .oneinit = gv100_fault_oneinit, 190 .init = gv100_fault_init, 191 .fini = gv100_fault_fini, 192 .intr = gv100_fault_intr, 193 .buffer.nr = 2, 194 .buffer.entry_size = 32, 195 .buffer.entries = gv100_fault_buffer_entries, 196 .buffer.init = gv100_fault_buffer_init, 197 .buffer.fini = gv100_fault_buffer_fini, 198 }; 199 200 int 201 gv100_fault_new(struct nvkm_device *device, int index, 202 struct nvkm_fault **pfault) 203 { 204 return nvkm_fault_new_(&gv100_fault, device, index, pfault); 205 } 206