fdo-mirrors/mesa-drm
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/drm.git synced 2025-12-20 03:30:22 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

amdgpu: add env support for amdgpu.ids path

Browse source 
In some cases, like when building a Snap application that uses
libdrm, the `amdgpu.ids` file isn't directly available at the
compiling place, but inside a mounted folder. This forces each
application to link/bind the file from the current place
(usually at the $SNAP/gnome-platform/usr/share/libdrm/amdgpu.ids)
which is cumbersome.

This patch allows to set an environment variable, called
AMDGPU_ASIC_ID_TABLE_PATH, where the file will be also searched
if it isn't located in the default, meson-configured, path.
This commit is contained in:
Sergio Costas Rodriguez 2022-11-02 15:48:07 +01:00
parent a8e5e10a87
commit c3c7fb21aa
No known key found for this signature in database
GPG key ID: D4A5410CE1372A40
2 changed files with 22 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
README.rst
View file

@ -49,3 +49,12 @@ Then use ninja to build and install:
If you are installing into a system location you will need to run install
separately, and as root.
AMDGPU ASIC table file
----------------------
The AMDGPU driver requires the `amdgpu.ids` file. It is usually located at
`$PREFIX/share/libdrm`, but it is possible to specify an alternative path
during runtime by setting the `AMDGPU_ASIC_ID_TABLE_PATH` environment
variable with the full path (including the file name) of the alternative
file.

17
amdgpu/amdgpu_asic_id.c
View file

@ -22,6 +22,11 @@
*
*/
// secure_getenv requires _GNU_SOURCE
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
@ -168,10 +173,14 @@ void amdgpu_parse_asic_ids(struct amdgpu_device *dev)
ssize_t n;
int line_num = 1;
int r = 0;
const char *amdgpu_asic_id_table_path = secure_getenv("AMDGPU_ASIC_ID_TABLE_PATH");
fp = fopen(AMDGPU_ASIC_ID_TABLE, "r");
if (amdgpu_asic_id_table_path == NULL || amdgpu_asic_id_table_path[0] == '\0')
amdgpu_asic_id_table_path = AMDGPU_ASIC_ID_TABLE;
fp = fopen(amdgpu_asic_id_table_path, "r");
if (!fp) {
fprintf(stderr, "%s: %s\n", AMDGPU_ASIC_ID_TABLE,
fprintf(stderr, "%s: %s\n", amdgpu_asic_id_table_path,
strerror(errno));
goto get_cpu;
}
@ -188,7 +197,7 @@ void amdgpu_parse_asic_ids(struct amdgpu_device *dev)
continue;
}
drmMsg("%s version: %s\n", AMDGPU_ASIC_ID_TABLE, line);
drmMsg("%s version: %s\n", amdgpu_asic_id_table_path, line);
break;
}
@ -206,7 +215,7 @@ void amdgpu_parse_asic_ids(struct amdgpu_device *dev)
if (r == -EINVAL) {
fprintf(stderr, "Invalid format: %s: line %d: %s\n",
AMDGPU_ASIC_ID_TABLE, line_num, line);
amdgpu_asic_id_table_path, line_num, line);
} else if (r && r != -EAGAIN) {
fprintf(stderr, "%s: Cannot parse ASIC IDs: %s\n",
__func__, strerror(-r));