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/mc.h> 26 27 #include <nvif/class.h> 28 29 void 30 gp100_fault_buffer_intr(struct nvkm_fault_buffer *buffer, bool enable) 31 { 32 struct nvkm_device *device = buffer->fault->subdev.device; 33 nvkm_mc_intr_mask(device, NVKM_SUBDEV_FAULT, 0, enable); 34 } 35 36 void 37 gp100_fault_buffer_fini(struct nvkm_fault_buffer *buffer) 38 { 39 struct nvkm_device *device = buffer->fault->subdev.device; 40 nvkm_mask(device, 0x002a70, 0x00000001, 0x00000000); 41 } 42 43 void 44 gp100_fault_buffer_init(struct nvkm_fault_buffer *buffer) 45 { 46 struct nvkm_device *device = buffer->fault->subdev.device; 47 nvkm_wr32(device, 0x002a74, upper_32_bits(buffer->addr)); 48 nvkm_wr32(device, 0x002a70, lower_32_bits(buffer->addr)); 49 nvkm_mask(device, 0x002a70, 0x00000001, 0x00000001); 50 } 51 52 u64 gp100_fault_buffer_pin(struct nvkm_fault_buffer *buffer) 53 { 54 return nvkm_memory_bar2(buffer->mem); 55 } 56 57 void 58 gp100_fault_buffer_info(struct nvkm_fault_buffer *buffer) 59 { 60 buffer->entries = nvkm_rd32(buffer->fault->subdev.device, 0x002a78); 61 buffer->get = 0x002a7c; 62 buffer->put = 0x002a80; 63 } 64 65 void 66 gp100_fault_intr(struct nvkm_fault *fault) 67 { 68 nvkm_event_send(&fault->event, 1, 0, NULL, 0); 69 } 70 71 static const struct nvkm_fault_func 72 gp100_fault = { 73 .intr = gp100_fault_intr, 74 .buffer.nr = 1, 75 .buffer.entry_size = 32, 76 .buffer.info = gp100_fault_buffer_info, 77 .buffer.pin = gp100_fault_buffer_pin, 78 .buffer.init = gp100_fault_buffer_init, 79 .buffer.fini = gp100_fault_buffer_fini, 80 .buffer.intr = gp100_fault_buffer_intr, 81 .user = { { 0, 0, MAXWELL_FAULT_BUFFER_A }, 0 }, 82 }; 83 84 int 85 gp100_fault_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, 86 struct nvkm_fault **pfault) 87 { 88 return nvkm_fault_new_(&gp100_fault, device, type, inst, pfault); 89 } 90