Commit 5dca122f authored by Ashutosh Dixit's avatar Ashutosh Dixit Committed by Rodrigo Vivi
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drm/i915/gt: Create gt/gtN/.defaults/ for per gt sysfs defaults 



Create a gt/gtN/.defaults/ directory (similar to
engine/<engine-name>/.defaults/) to expose default parameter values for
each gt in sysfs. This allows userspace to restore default parameter values
after they have changed. The empty 'struct gt_defaults' will be populated
by subsequent patches.

v2: Changed 'struct intel_rps_defaults rps_defaults' to
    'struct gt_defaults defaults' (Andi)

Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: default avatarAshutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/be7c30d0ae58be9d8d5b8242ba00a1b2825e63ad.1658192398.git.ashutosh.dixit@intel.com
parent 1dab4561

drivers/gpu/drm/i915/gt/intel_gt_sysfs.c

+5 −0
Original line number Diff line number Diff line
@@ -101,6 +101,10 @@ void intel_gt_sysfs_register(struct intel_gt *gt) 
				 gt->i915->sysfs_gt, "gt%d", gt->info.id))

		goto exit_fail;



	gt->sysfs_defaults = kobject_create_and_add(".defaults", &gt->sysfs_gt);

	if (!gt->sysfs_defaults)

		goto exit_fail;



	intel_gt_sysfs_pm_init(gt, &gt->sysfs_gt);



	return;
@@ -113,5 +117,6 @@ void intel_gt_sysfs_register(struct intel_gt *gt) 


void intel_gt_sysfs_unregister(struct intel_gt *gt)

{

	kobject_put(gt->sysfs_defaults);

	kobject_put(&gt->sysfs_gt);

}

drivers/gpu/drm/i915/gt/intel_gt_types.h

+7 −0
Original line number Diff line number Diff line
@@ -75,6 +75,9 @@ enum intel_submission_method { 
	INTEL_SUBMISSION_GUC,

};



struct gt_defaults {

};



struct intel_gt {

	struct drm_i915_private *i915;

	struct intel_uncore *uncore;
@@ -235,6 +238,10 @@ struct intel_gt { 


	/* gt/gtN sysfs */

	struct kobject sysfs_gt;



	/* sysfs defaults per gt */

	struct gt_defaults defaults;

	struct kobject *sysfs_defaults;

};



enum intel_gt_scratch_field {