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 <subdev/mc.h> 25 26 #include <nvif/class.h> 27 28 static void 29 gp100_fault_buffer_intr(struct nvkm_fault_buffer *buffer, bool enable) 30 { 31 struct nvkm_device *device = buffer->fault->subdev.device; 32 nvkm_mc_intr_mask(device, NVKM_SUBDEV_FAULT, enable); 33 } 34 35 static void 36 gp100_fault_buffer_fini(struct nvkm_fault_buffer *buffer) 37 { 38 struct nvkm_device *device = buffer->fault->subdev.device; 39 nvkm_mask(device, 0x002a70, 0x00000001, 0x00000000); 40 } 41 42 static void 43 gp100_fault_buffer_init(struct nvkm_fault_buffer *buffer) 44 { 45 struct nvkm_device *device = buffer->fault->subdev.device; 46 nvkm_wr32(device, 0x002a74, upper_32_bits(buffer->addr)); 47 nvkm_wr32(device, 0x002a70, lower_32_bits(buffer->addr)); 48 nvkm_mask(device, 0x002a70, 0x00000001, 0x00000001); 49 } 50 51 static void 52 gp100_fault_buffer_info(struct nvkm_fault_buffer *buffer) 53 { 54 buffer->entries = nvkm_rd32(buffer->fault->subdev.device, 0x002a78); 55 buffer->get = 0x002a7c; 56 buffer->put = 0x002a80; 57 } 58 59 static void 60 gp100_fault_intr(struct nvkm_fault *fault) 61 { 62 nvkm_event_send(&fault->event, 1, 0, NULL, 0); 63 } 64 65 static const struct nvkm_fault_func 66 gp100_fault = { 67 .intr = gp100_fault_intr, 68 .buffer.nr = 1, 69 .buffer.entry_size = 32, 70 .buffer.info = gp100_fault_buffer_info, 71 .buffer.init = gp100_fault_buffer_init, 72 .buffer.fini = gp100_fault_buffer_fini, 73 .buffer.intr = gp100_fault_buffer_intr, 74 .user = { { 0, 0, MAXWELL_FAULT_BUFFER_A }, 0 }, 75 }; 76 77 int 78 gp100_fault_new(struct nvkm_device *device, int index, 79 struct nvkm_fault **pfault) 80 { 81 return nvkm_fault_new_(&gp100_fault, device, index, pfault); 82 } 83