drm/i915/pmu: Drop redundant IS_VALLEYVIEW check in __get_rc6()

Because VLV_GT_RENDER_RC6 == GEN6_GT_GFX_RC6, the IS_VALLEYVIEW() check is
not needed. Neither is the check present in other code paths which call
intel_rc6_residency_ns() (in functions gen6_drpc(), rc6_residency() and
rc6_residency_ms_show()).

v2: Elimintate VLV_GT_RENDER_RC6 #define (Jani)

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Badal Nilawar <badal.nilawar@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220314161310.6468-1-ashutosh.dixit@intel.com

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

@@ -113,7 +113,7 @@ static int vlv_drpc(struct seq_file *m)
 	seq_printf(m, "Media Power Well: %s\n",
 		   (pw_status & VLV_GTLC_PW_MEDIA_STATUS_MASK) ? "Up" : "Down");
 
-	print_rc6_res(m, "Render RC6 residency since boot:", VLV_GT_RENDER_RC6);
+	print_rc6_res(m, "Render RC6 residency since boot:", GEN6_GT_GFX_RC6);
 	print_rc6_res(m, "Media RC6 residency since boot:", VLV_GT_MEDIA_RC6);
 
 	return fw_domains_show(m, NULL);

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

@@ -1433,7 +1433,6 @@
 #define   VLV_MEDIA_RC6_COUNT_EN		(1 << 1)
 #define   VLV_RENDER_RC6_COUNT_EN		(1 << 0)
 #define GEN6_GT_GFX_RC6				_MMIO(0x138108)
-#define VLV_GT_RENDER_RC6			_MMIO(0x138108)
 #define VLV_GT_MEDIA_RC6			_MMIO(0x13810c)
 
 #define GEN6_GT_GFX_RC6p			_MMIO(0x13810c)

drivers/gpu/drm/i915/i915_pmu.c

@@ -148,10 +148,7 @@ static u64 __get_rc6(struct intel_gt *gt)
 	struct drm_i915_private *i915 = gt->i915;
 	u64 val;
 
-	val = intel_rc6_residency_ns(&gt->rc6,
-				     IS_VALLEYVIEW(i915) ?
-				     VLV_GT_RENDER_RC6 :
-				     GEN6_GT_GFX_RC6);
+	val = intel_rc6_residency_ns(&gt->rc6, GEN6_GT_GFX_RC6);
 
 	if (HAS_RC6p(i915))
 		val += intel_rc6_residency_ns(&gt->rc6, GEN6_GT_GFX_RC6p);