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https://gitlab.freedesktop.org/mesa/mesa.git
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7ab925a6aa
v2: Fix the leak of device_name
v3: Rebased
It enables to use the DRI_PRIME env var to specify
which gpu to use.
Two syntax are supported:
If DRI_PRIME is 1 it means: take any other gpu than the default one.
If DRI_PRIME is the ID_PATH_TAG of a device: choose this device if
possible.
The ID_PATH_TAG is a tag filled by udev.
You can check it with 'udevadm info' on the device node.
For example it can be "pci-0000_01_00_0".
Render-nodes need to be enabled to choose another gpu,
and they need to have the ID_PATH_TAG advertised.
It is possible for not very recent udev that the tag
is not advertised for render-nodes, then
ones need to add a file containing:
SUBSYSTEM=="drm", IMPORT{builtin}="path_id"
in /etc/udev/rules.d/
Signed-off-by: Axel Davy <axel.davy@ens.fr>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
64 lines
2.3 KiB
C
64 lines
2.3 KiB
C
/*
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* Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Authors:
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* Rob Clark <robclark@freedesktop.org>
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*/
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#ifndef LOADER_H
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#define LOADER_H
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/* Helpers to figure out driver and device name, eg. from pci-id, etc. */
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#define _LOADER_DRI (1 << 0)
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#define _LOADER_GALLIUM (1 << 1)
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int
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loader_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id);
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char *
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loader_get_driver_for_fd(int fd, unsigned driver_types);
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char *
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loader_get_device_name_for_fd(int fd);
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/* Function to get a different device than the one we are to use by default,
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* if the user requests so and it is possible. The initial fd will be closed
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* if neccessary. The returned fd is potentially a render-node.
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*/
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int
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loader_get_user_preferred_fd(int default_fd, int *different_device);
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/* for logging.. keep this aligned with egllog.h so we can just use
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* _eglLog directly.
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*/
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#define _LOADER_FATAL 0 /* unrecoverable error */
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#define _LOADER_WARNING 1 /* recoverable error/problem */
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#define _LOADER_INFO 2 /* just useful info */
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#define _LOADER_DEBUG 3 /* useful info for debugging */
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void
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loader_set_logger(void (*logger)(int level, const char *fmt, ...));
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#endif /* LOADER_H */
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