drm/xe: add a new sysfs directory for gtidle properties

1) Add a new sysfs directory under devices/gt#/ called gtidle
   to contain idle properties of GT such as name, idle_status,
   idle_residency_ms

2) Remove forcewake calls for residency counter

v2:
    - abstract using function pointers (Anshuman)
    - remove forcewake calls for residency counter
    - use device_attr (Badal)
    - move rc functions to guc_pc
    - change name to gt_idle (Rodrigo)

v3:
    - return error for drmm_add_action_or_reset
    - replace file and functions with gt_idle prefix
      to gt_idle_sysfs (Himal)
    - use enum for gt idle state
    - move multiplier to gt idle and initialize (Anshuman)
    - correct doc annotation (Rodrigo)
    - remove return variable
    - use kobj_gt instead of new gtidle kobj
    - move residency_ms to gtidle file
    - retain xe_guc_pc prefix for functions in guc_rc file (Michal)

v4:
    - fix doc errors in xe_guc_pc file
    - change u64 to u32 for reading residency counter
    - keep gtidle states generic GT_IDLE_C[0/6] (Anshuman)

v5:
    - update commit message to include removal of
      forcewake calls (Anshuman)
    - return void from sysfs initialization function and add warnings
      (Andi)

v6:
    - remove extra lines (Anshuman)

Signed-off-by: Riana Tauro <riana.tauro@intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Anshuman Gupta <anshuman.gupta@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/drm/xe/xe_gt_types.h b/drivers/gpu/drm/xe/xe_gt_types.h
index 99ab7ec99ccd..7d4de019f9a5 100644
--- a/drivers/gpu/drm/xe/xe_gt_types.h
+++ b/drivers/gpu/drm/xe/xe_gt_types.h
@@ -7,6 +7,7 @@
 #define _XE_GT_TYPES_H_
 
 #include "xe_force_wake_types.h"
+#include "xe_gt_idle_sysfs_types.h"
 #include "xe_hw_engine_types.h"
 #include "xe_hw_fence_types.h"
 #include "xe_reg_sr_types.h"
@@ -260,6 +261,9 @@ struct xe_gt {
 	/** @uc: micro controllers on the GT */
 	struct xe_uc uc;
 
+	/** @gtidle: idle properties of GT */
+	struct xe_gt_idle gtidle;
+
 	/** @engine_ops: submission backend engine operations */
 	const struct xe_engine_ops *engine_ops;