root/drivers/gpu/drm/nouveau/nvkm/subdev/fault/gp100.c

DEFINITIONS

1. gp100_fault_buffer_intr
2. gp100_fault_buffer_fini
3. gp100_fault_buffer_init
4. gp100_fault_buffer_info
5. gp100_fault_intr
6. gp100_fault_new

   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 }