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