2 * va_drm_utils.c - VA/DRM Utilities
4 * Copyright (c) 2012 Intel Corporation. All Rights Reserved.
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7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
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11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE LIABLE FOR
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30 #include "va_drm_utils.h"
31 #include "va_drmcommon.h"
33 struct driver_name_map {
39 static const struct driver_name_map g_driver_name_map[] = {
40 { "i915", 4, "i965" }, // Intel OTC GenX driver
41 { "pvrsrvkm", 8, "pvr" }, // Intel UMG PVR driver
42 { "emgd", 4, "emgd" }, // Intel ECG PVR driver
43 { "hybrid", 6, "hybrid" }, // Intel OTC Hybrid driver
44 { "nouveau", 7, "nouveau" }, // Mesa Gallium driver
45 { "radeon", 6, "r600" }, // Mesa Gallium driver
46 { "amdgpu", 6, "radeonsi" }, // Mesa Gallium driver
50 /* Returns the VA driver name for the active display */
52 VA_DRM_GetDriverName(VADriverContextP ctx, char **driver_name_ptr)
54 struct drm_state * const drm_state = ctx->drm_state;
55 drmVersionPtr drm_version;
56 char *driver_name = NULL;
57 const struct driver_name_map *m;
59 *driver_name_ptr = NULL;
61 if (!drm_state || drm_state->fd < 0)
62 return VA_STATUS_ERROR_INVALID_DISPLAY;
64 drm_version = drmGetVersion(drm_state->fd);
66 return VA_STATUS_ERROR_UNKNOWN;
68 for (m = g_driver_name_map; m->key != NULL; m++) {
69 if (drm_version->name_len >= m->key_len &&
70 strncmp(drm_version->name, m->key, m->key_len) == 0)
73 drmFreeVersion(drm_version);
76 return VA_STATUS_ERROR_UNKNOWN;
78 driver_name = strdup(m->name);
80 return VA_STATUS_ERROR_ALLOCATION_FAILED;
82 *driver_name_ptr = driver_name;
83 return VA_STATUS_SUCCESS;
86 /* Checks whether the file descriptor is a DRM Render-Nodes one */
88 VA_DRM_IsRenderNodeFd(int fd)
93 /* Check by device node */
94 if (fstat(fd, &st) == 0)
95 return S_ISCHR(st.st_mode) && (st.st_rdev & 0x80);
97 /* Check by device name */
98 name = drmGetDeviceNameFromFd(fd);
100 return strncmp(name, "/dev/dri/renderD", 16) == 0;
102 /* Unrecoverable error */