subdev/fault/gp100.c

0001 /*
0002  * Copyright 2018 Red Hat Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  */
0022 #include "priv.h"
0023
0024 #include <core/memory.h>
0025 #include <subdev/mc.h>
0026
0027 #include <nvif/class.h>
0028
0029 void
0030 gp100_fault_buffer_intr(struct nvkm_fault_buffer *buffer, bool enable)
0031 {
0032     struct nvkm_device *device = buffer->fault->subdev.device;
0033     nvkm_mc_intr_mask(device, NVKM_SUBDEV_FAULT, 0, enable);
0034 }
0035
0036 void
0037 gp100_fault_buffer_fini(struct nvkm_fault_buffer *buffer)
0038 {
0039     struct nvkm_device *device = buffer->fault->subdev.device;
0040     nvkm_mask(device, 0x002a70, 0x00000001, 0x00000000);
0041 }
0042
0043 void
0044 gp100_fault_buffer_init(struct nvkm_fault_buffer *buffer)
0045 {
0046     struct nvkm_device *device = buffer->fault->subdev.device;
0047     nvkm_wr32(device, 0x002a74, upper_32_bits(buffer->addr));
0048     nvkm_wr32(device, 0x002a70, lower_32_bits(buffer->addr));
0049     nvkm_mask(device, 0x002a70, 0x00000001, 0x00000001);
0050 }
0051
0052 u64 gp100_fault_buffer_pin(struct nvkm_fault_buffer *buffer)
0053 {
0054     return nvkm_memory_bar2(buffer->mem);
0055 }
0056
0057 void
0058 gp100_fault_buffer_info(struct nvkm_fault_buffer *buffer)
0059 {
0060     buffer->entries = nvkm_rd32(buffer->fault->subdev.device, 0x002a78);
0061     buffer->get = 0x002a7c;
0062     buffer->put = 0x002a80;
0063 }
0064
0065 void
0066 gp100_fault_intr(struct nvkm_fault *fault)
0067 {
0068     nvkm_event_send(&fault->event, 1, 0, NULL, 0);
0069 }
0070
0071 static const struct nvkm_fault_func
0072 gp100_fault = {
0073     .intr = gp100_fault_intr,
0074     .buffer.nr = 1,
0075     .buffer.entry_size = 32,
0076     .buffer.info = gp100_fault_buffer_info,
0077     .buffer.pin = gp100_fault_buffer_pin,
0078     .buffer.init = gp100_fault_buffer_init,
0079     .buffer.fini = gp100_fault_buffer_fini,
0080     .buffer.intr = gp100_fault_buffer_intr,
0081     .user = { { 0, 0, MAXWELL_FAULT_BUFFER_A }, 0 },
0082 };
0083
0084 int
0085 gp100_fault_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
0086         struct nvkm_fault **pfault)
0087 {
0088     return nvkm_fault_new_(&gp100_fault, device, type, inst, pfault);
0089 }