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/mmu.h> 25 26 static void 27 gp100_fault_buffer_fini(struct nvkm_fault_buffer *buffer) 28 { 29 struct nvkm_device *device = buffer->fault->subdev.device; 30 nvkm_mask(device, 0x002a70, 0x00000001, 0x00000000); 31 } 32 33 static void 34 gp100_fault_buffer_init(struct nvkm_fault_buffer *buffer) 35 { 36 struct nvkm_device *device = buffer->fault->subdev.device; 37 nvkm_wr32(device, 0x002a74, upper_32_bits(buffer->vma->addr)); 38 nvkm_wr32(device, 0x002a70, lower_32_bits(buffer->vma->addr)); 39 nvkm_mask(device, 0x002a70, 0x00000001, 0x00000001); 40 } 41 42 static u32 43 gp100_fault_buffer_entries(struct nvkm_fault_buffer *buffer) 44 { 45 return nvkm_rd32(buffer->fault->subdev.device, 0x002a78); 46 } 47 48 static void 49 gp100_fault_intr(struct nvkm_fault *fault) 50 { 51 nvkm_event_send(&fault->event, 1, 0, NULL, 0); 52 } 53 54 static const struct nvkm_fault_func 55 gp100_fault = { 56 .intr = gp100_fault_intr, 57 .buffer.nr = 1, 58 .buffer.entry_size = 32, 59 .buffer.entries = gp100_fault_buffer_entries, 60 .buffer.init = gp100_fault_buffer_init, 61 .buffer.fini = gp100_fault_buffer_fini, 62 }; 63 64 int 65 gp100_fault_new(struct nvkm_device *device, int index, 66 struct nvkm_fault **pfault) 67 { 68 return nvkm_fault_new_(&gp100_fault, device, index, pfault); 69 } 70