loader: add dri_driver option to override dri driver to load

drirc implementation of MESA_LOADER_DRIVER_OVERRIDE which can be
used to override dri driver to load.

Usage:

override dri driver for device with spec kernel driver name:

<device kernel_driver="kernel_driver_name">
  <option name="dri_driver" value="new_dri_driver" />
</device>

or

<device driver="loader" kernel_driver="kernel_driver_name">
  <option name="dri_driver" value="new_dri_driver" />
</device>

v2:
  add kernel_driver device attribute to specify kernel
  driver name instead of reuse driver attribute

v3:
  seperate loader_get_kernel_driver_name into another patch
  seperate add kernel_driver attribute into another patch

Suggested-by: Michel Dänzer <[email protected]>
Signed-off-by: Qiang Yu <[email protected]>
Acked-by: Michel Dänzer <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
[v4 Emil: add HAVE_LIBDRM guard around __driConfigOptionsLoader and
loader_get_dri_config_driver]
Signed-off-by: Emil Velikov <[email protected]>

0 files changed, 0 insertions, 0 deletions