drm/i915/gt: Allow the user to change the CCS mode through sysfsccs-mode

Create the 'ccs_mode' file under

/sys/class/drm/cardX/gt/gt0/ccs_mode

This file allows the user to read and set the current CCS mode.

 - Reading: The user can read the current CCS mode, which can be
   1, 2, or 4. This value is derived from the current engine
   mask.

 - Writing: The user can set the CCS mode to 1, 2, or 4,
   depending on the desired number of exposed engines and the
   required load balancing.

The interface will return -EBUSY if other clients are connected
to i915, or -EINVAL if an invalid value is set.

Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>

0 files changed, 0 insertions, 0 deletions