ga100.c

  1/*
  2 * Copyright 2021 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/gsp.h>
 25
 26static int
 27ga100_top_parse(struct nvkm_top *top)
 28{
 29	struct nvkm_subdev *subdev = &top->subdev;
 30	struct nvkm_device *device = subdev->device;
 31	struct nvkm_top_device *info = NULL;
 32	u32 data, type, inst;
 33	int i, n, size = nvkm_rd32(device, 0x0224fc) >> 20;
 34
 35	for (i = 0, n = 0; i < size; i++) {
 36		if (!info) {
 37			if (!(info = nvkm_top_device_new(top)))
 38				return -ENOMEM;
 39			type = ~0;
 40			inst = 0;
 41		}
 42
 43		data = nvkm_rd32(device, 0x022800 + (i * 0x04));
 44		nvkm_trace(subdev, "%02x: %08x\n", i, data);
 45		if (!data && n == 0)
 46			continue;
 47
 48		switch (n++) {
 49		case 0:
 50			type	      = (data & 0x3f000000) >> 24;
 51			inst	      = (data & 0x000f0000) >> 16;
 52			info->fault   = (data & 0x0000007f);
 53			break;
 54		case 1:
 55			info->addr    = (data & 0x00fff000);
 56			info->reset   = (data & 0x0000001f);
 57			break;
 58		case 2:
 59			info->runlist = (data & 0x00fffc00);
 60			info->engine  = (data & 0x00000003);
 61			break;
 62		default:
 63			break;
 64		}
 65
 66		if (data & 0x80000000)
 67			continue;
 68		n = 0;
 69
 70		/* Translate engine type to NVKM engine identifier. */
 71#define I_(T,I) do { info->type = (T); info->inst = (I); } while(0)
 72#define O_(T,I) do { WARN_ON(inst); I_(T, I); } while (0)
 73		switch (type) {
 74		case 0x00000000: O_(NVKM_ENGINE_GR    ,    0); break;
 75		case 0x0000000d: O_(NVKM_ENGINE_SEC2  ,    0); break;
 76		case 0x0000000e: I_(NVKM_ENGINE_NVENC , inst); break;
 77		case 0x00000010: I_(NVKM_ENGINE_NVDEC , inst); break;
 78		case 0x00000012: I_(NVKM_SUBDEV_IOCTRL, inst); break;
 79		case 0x00000013: I_(NVKM_ENGINE_CE    , inst); break;
 80		case 0x00000014: O_(NVKM_SUBDEV_GSP   ,    0); break;
 81		case 0x00000015: I_(NVKM_ENGINE_NVJPG , inst); break;
 82		case 0x00000016: O_(NVKM_ENGINE_OFA   ,    0); break;
 83		case 0x00000017: O_(NVKM_SUBDEV_FLA   ,    0); break;
 84			break;
 85		default:
 86			break;
 87		}
 88
 89		nvkm_debug(subdev, "%02x.%d (%8s): addr %06x fault %2d "
 90				   "runlist %6x engine %2d reset %2d\n", type, inst,
 91			   info->type == NVKM_SUBDEV_NR ? "????????" : nvkm_subdev_type[info->type],
 92			   info->addr, info->fault, info->runlist < 0 ? 0 : info->runlist,
 93			   info->engine, info->reset);
 94		info = NULL;
 95	}
 96
 97	return 0;
 98}
 99
100static const struct nvkm_top_func
101ga100_top = {
102	.parse = ga100_top_parse,
103};
104
105int
106ga100_top_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
107	      struct nvkm_top **ptop)
108{
109	if (nvkm_gsp_rm(device->gsp))
110		return -ENODEV;
111
112	return nvkm_top_new_(&ga100_top, device, type, inst, ptop);
113}