drm/i915/gt: Create the gt_to_guc() wrapper

We already have guc_to_gt() and getting to guc from the GT it
requires some mental effort. Add the gt_to_guc().

Given the reference to the "gt", the gt_to_guc() will return the
pinter to the "guc".

Update all the files under the gt/ directory.
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231229102734.674362-2-andi.shyti@linux.intel.com

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

@@ -589,7 +589,7 @@ u64 intel_clamp_preempt_timeout_ms(struct intel_engine_cs *engine, u64 value)
 	 * NB: The GuC API only supports 32bit values. However, the limit is further
 	 * reduced due to internal calculations which would otherwise overflow.
 	 */
-	if (intel_guc_submission_is_wanted(&engine->gt->uc.guc))
+	if (intel_guc_submission_is_wanted(gt_to_guc(engine->gt)))
 		value = min_t(u64, value, guc_policy_max_preempt_timeout_ms());
 
 	value = min_t(u64, value, jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT));
@@ -610,7 +610,7 @@ u64 intel_clamp_timeslice_duration_ms(struct intel_engine_cs *engine, u64 value)
 	 * NB: The GuC API only supports 32bit values. However, the limit is further
 	 * reduced due to internal calculations which would otherwise overflow.
 	 */
-	if (intel_guc_submission_is_wanted(&engine->gt->uc.guc))
+	if (intel_guc_submission_is_wanted(gt_to_guc(engine->gt)))
 		value = min_t(u64, value, guc_policy_max_exec_quantum_ms());
 
 	value = min_t(u64, value, jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT));

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

@@ -230,11 +230,8 @@ static void guc_ggtt_ct_invalidate(struct intel_gt *gt)
 	struct intel_uncore *uncore = gt->uncore;
 	intel_wakeref_t wakeref;
 
-	with_intel_runtime_pm_if_active(uncore->rpm, wakeref) {
-		struct intel_guc *guc = &gt->uc.guc;
-
-		intel_guc_invalidate_tlb_guc(guc);
-	}
+	with_intel_runtime_pm_if_active(uncore->rpm, wakeref)
+		intel_guc_invalidate_tlb_guc(gt_to_guc(gt));
 }
 
 static void guc_ggtt_invalidate(struct i915_ggtt *ggtt)
@@ -245,7 +242,7 @@ static void guc_ggtt_invalidate(struct i915_ggtt *ggtt)
 	gen8_ggtt_invalidate(ggtt);
 
 	list_for_each_entry(gt, &ggtt->gt_list, ggtt_link) {
-		if (intel_guc_tlb_invalidation_is_available(&gt->uc.guc))
+		if (intel_guc_tlb_invalidation_is_available(gt_to_guc(gt)))
 			guc_ggtt_ct_invalidate(gt);
 		else if (GRAPHICS_VER(i915) >= 12)
 			intel_uncore_write_fw(gt->uncore,

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

@@ -123,6 +123,11 @@ static inline struct drm_i915_private *guc_to_i915(struct intel_guc *guc)
 	return guc_to_gt(guc)->i915;
 }
 
+static inline struct intel_guc *gt_to_guc(struct intel_gt *gt)
+{
+	return &gt->uc.guc;
+}
+
 void intel_gt_common_init_early(struct intel_gt *gt);
 int intel_root_gt_init_early(struct drm_i915_private *i915);
 int intel_gt_assign_ggtt(struct intel_gt *gt);

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

@@ -68,9 +68,9 @@ gen11_other_irq_handler(struct intel_gt *gt, const u8 instance,
 	struct intel_gt *media_gt = gt->i915->media_gt;
 
 	if (instance == OTHER_GUC_INSTANCE)
-		return guc_irq_handler(&gt->uc.guc, iir);
+		return guc_irq_handler(gt_to_guc(gt), iir);
 	if (instance == OTHER_MEDIA_GUC_INSTANCE && media_gt)
-		return guc_irq_handler(&media_gt->uc.guc, iir);
+		return guc_irq_handler(gt_to_guc(media_gt), iir);
 
 	if (instance == OTHER_GTPM_INSTANCE)
 		return gen11_rps_irq_handler(&gt->rps, iir);
@@ -442,7 +442,7 @@ void gen8_gt_irq_handler(struct intel_gt *gt, u32 master_ctl)
 		iir = raw_reg_read(regs, GEN8_GT_IIR(2));
 		if (likely(iir)) {
 			gen6_rps_irq_handler(&gt->rps, iir);
-			guc_irq_handler(&gt->uc.guc, iir >> 16);
+			guc_irq_handler(gt_to_guc(gt), iir >> 16);
 			raw_reg_write(regs, GEN8_GT_IIR(2), iir);
 		}
 	}

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

@@ -538,7 +538,7 @@ static bool rps_eval(void *data)
 {
 	struct intel_gt *gt = data;
 
-	if (intel_guc_slpc_is_used(&gt->uc.guc))
+	if (intel_guc_slpc_is_used(gt_to_guc(gt)))
 		return false;
 	else
 		return HAS_RPS(gt->i915);

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

@@ -442,7 +442,7 @@ static ssize_t slpc_ignore_eff_freq_show(struct kobject *kobj,
 					 char *buff)
 {
 	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(kobj, attr->attr.name);
-	struct intel_guc_slpc *slpc = &gt->uc.guc.slpc;
+	struct intel_guc_slpc *slpc = &gt_to_guc(gt)->slpc;
 
 	return sysfs_emit(buff, "%u\n", slpc->ignore_eff_freq);
 }
@@ -452,7 +452,7 @@ static ssize_t slpc_ignore_eff_freq_store(struct kobject *kobj,
 					  const char *buff, size_t count)
 {
 	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(kobj, attr->attr.name);
-	struct intel_guc_slpc *slpc = &gt->uc.guc.slpc;
+	struct intel_guc_slpc *slpc = &gt_to_guc(gt)->slpc;
 	int err;
 	u32 val;
 
@@ -573,7 +573,7 @@ static ssize_t media_freq_factor_show(struct kobject *kobj,
 				      char *buff)
 {
 	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(kobj, attr->attr.name);
-	struct intel_guc_slpc *slpc = &gt->uc.guc.slpc;
+	struct intel_guc_slpc *slpc = &gt_to_guc(gt)->slpc;
 	intel_wakeref_t wakeref;
 	u32 mode;
 
@@ -604,7 +604,7 @@ static ssize_t media_freq_factor_store(struct kobject *kobj,
 				       const char *buff, size_t count)
 {
 	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(kobj, attr->attr.name);
-	struct intel_guc_slpc *slpc = &gt->uc.guc.slpc;
+	struct intel_guc_slpc *slpc = &gt_to_guc(gt)->slpc;
 	u32 factor, mode;
 	int err;
 

drivers/gpu/drm/i915/gt/intel_rc6.c

@@ -109,7 +109,7 @@ static void gen11_rc6_enable(struct intel_rc6 *rc6)
 	 * thus allowing GuC to control RC6 entry/exit fully instead.
 	 * We will not set the HW ENABLE and EI bits
 	 */
-	if (!intel_guc_rc_enable(&gt->uc.guc))
+	if (!intel_guc_rc_enable(gt_to_guc(gt)))
 		rc6->ctl_enable = GEN6_RC_CTL_RC6_ENABLE;
 	else
 		rc6->ctl_enable =
@@ -569,7 +569,7 @@ static void __intel_rc6_disable(struct intel_rc6 *rc6)
 	struct intel_gt *gt = rc6_to_gt(rc6);
 
 	/* Take control of RC6 back from GuC */
-	intel_guc_rc_disable(&gt->uc.guc);
+	intel_guc_rc_disable(gt_to_guc(gt));
 
 	intel_uncore_forcewake_get(uncore, FORCEWAKE_ALL);
 	if (GRAPHICS_VER(i915) >= 9)

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

@@ -52,7 +52,7 @@ static struct intel_guc_slpc *rps_to_slpc(struct intel_rps *rps)
 {
 	struct intel_gt *gt = rps_to_gt(rps);
 
-	return &gt->uc.guc.slpc;
+	return &gt_to_guc(gt)->slpc;
 }
 
 static bool rps_uses_slpc(struct intel_rps *rps)

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

@@ -132,7 +132,7 @@ void intel_gt_invalidate_tlb_full(struct intel_gt *gt, u32 seqno)
 		return;
 
 	with_intel_gt_pm_if_awake(gt, wakeref) {
-		struct intel_guc *guc = &gt->uc.guc;
+		struct intel_guc *guc = gt_to_guc(gt);
 
 		mutex_lock(&gt->tlb.invalidate_lock);
 		if (tlb_seqno_passed(gt, seqno))

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

@@ -53,7 +53,7 @@ static int slpc_set_max_freq(struct intel_guc_slpc *slpc, u32 freq)
 static int slpc_set_freq(struct intel_gt *gt, u32 freq)
 {
 	int err;
-	struct intel_guc_slpc *slpc = &gt->uc.guc.slpc;
+	struct intel_guc_slpc *slpc = &gt_to_guc(gt)->slpc;
 
 	err = slpc_set_max_freq(slpc, freq);
 	if (err) {
@@ -182,7 +182,7 @@ static int vary_min_freq(struct intel_guc_slpc *slpc, struct intel_rps *rps,
 
 static int slpc_power(struct intel_gt *gt, struct intel_engine_cs *engine)
 {
-	struct intel_guc_slpc *slpc = &gt->uc.guc.slpc;
+	struct intel_guc_slpc *slpc = &gt_to_guc(gt)->slpc;
 	struct {
 		u64 power;
 		int freq;
@@ -262,7 +262,7 @@ static int max_granted_freq(struct intel_guc_slpc *slpc, struct intel_rps *rps,
 
 static int run_test(struct intel_gt *gt, int test_type)
 {
-	struct intel_guc_slpc *slpc = &gt->uc.guc.slpc;
+	struct intel_guc_slpc *slpc = &gt_to_guc(gt)->slpc;
 	struct intel_rps *rps = &gt->rps;
 	struct intel_engine_cs *engine;
 	enum intel_engine_id id;