[PATCH] drm/i915/gt: move remaining debugfs interfaces into gt

[Andi Shyti <andi.shyti@xxxxxxxxx>]

The following interfaces:

  i915_wedged
  i915_forcewake_user
  i915_gem_interrupt

are dependent on gt values. Put them inside gt/ and drop the
"i915_" prefix name. This would be the new structure:

  dri/0/gt
  |
  +-- forcewake_user
  |
  +-- interrupt_info
  |
  \-- reset

Signed-off-by: Andi Shyti <andi.shyti@xxxxxxxxx>
Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/Makefile                 |   1 +
 drivers/gpu/drm/i915/gt/intel_gt_debugfs.c    |  47 ++++-
 .../gpu/drm/i915/gt/intel_gt_irq_debugfs.c    | 178 ++++++++++++++++++
 .../gpu/drm/i915/gt/intel_gt_irq_debugfs.h    |  15 ++
 drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c |  31 +++
 drivers/gpu/drm/i915/i915_debugfs.c           |  71 -------
 6 files changed, 271 insertions(+), 72 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_irq_debugfs.c
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_irq_debugfs.h

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 5c8e022a7383..770565c38448 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -100,6 +100,7 @@ gt-y += \
 	gt/intel_gt_debugfs.o \
 	gt/intel_gt_engines_debugfs.o \
 	gt/intel_gt_irq.o \
+	gt/intel_gt_irq_debugfs.o \
 	gt/intel_gt_pm.o \
 	gt/intel_gt_pm_debugfs.o \
 	gt/intel_gt_pm_irq.o \
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_debugfs.c b/drivers/gpu/drm/i915/gt/intel_gt_debugfs.c
index 03fb4aefbf90..2daff03a705a 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_debugfs.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_debugfs.c
@@ -8,10 +8,53 @@
 #include "i915_drv.h"
 #include "intel_gt_debugfs.h"
 #include "intel_gt_engines_debugfs.h"
+#include "intel_gt_irq_debugfs.h"
+#include "intel_gt_pm.h"
 #include "intel_gt_pm_debugfs.h"
+#include "intel_gt_requests.h"
 #include "intel_sseu_debugfs.h"
 #include "uc/intel_uc_debugfs.h"
 
+static int reset_show(void *data, u64 *val)
+{
+	struct intel_gt *gt = data;
+	int ret = intel_gt_terminally_wedged(gt);
+
+	switch (ret) {
+	case -EIO:
+		*val = 1;
+		return 0;
+	case 0:
+		*val = 0;
+		return 0;
+	default:
+		return ret;
+	}
+}
+
+static int reset_store(void *data, u64 val)
+{
+	struct intel_gt *gt = data;
+
+	/* Flush any previous reset before applying for a new one */
+	wait_event(gt->reset.queue,
+		   !test_bit(I915_RESET_BACKOFF, &gt->reset.flags));
+
+	intel_gt_handle_error(gt, val, I915_ERROR_CAPTURE,
+			      "Manually reset engine mask to %llx", val);
+	return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(reset_fops, reset_show, reset_store, "%llu\n");
+
+static void gt_debugfs_register(struct intel_gt *gt, struct dentry *root)
+{
+	static const struct intel_gt_debugfs_file files[] = {
+		{ "reset", &reset_fops, NULL },
+	};
+
+	intel_gt_debugfs_register_files(root, files, ARRAY_SIZE(files), gt);
+}
+
 void intel_gt_debugfs_register(struct intel_gt *gt)
 {
 	struct dentry *root;
@@ -23,10 +66,12 @@ void intel_gt_debugfs_register(struct intel_gt *gt)
 	if (IS_ERR(root))
 		return;
 
+	gt_debugfs_register(gt, root);
+
 	intel_gt_engines_debugfs_register(gt, root);
 	intel_gt_pm_debugfs_register(gt, root);
+	intel_gt_irq_debugfs_register(gt, root);
 	intel_sseu_debugfs_register(gt, root);
-
 	intel_uc_debugfs_register(&gt->uc, root);
 }
 
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_irq_debugfs.c b/drivers/gpu/drm/i915/gt/intel_gt_irq_debugfs.c
new file mode 100644
index 000000000000..3cf9ae8437e5
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/intel_gt_irq_debugfs.c
@@ -0,0 +1,178 @@
+// SPDX-License-Identifier: MIT
+
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#include "i915_drv.h"
+#include "intel_gt_debugfs.h"
+#include "intel_gt_irq_debugfs.h"
+
+static int interrupt_info_show(struct seq_file *m, void *data)
+{
+	struct intel_gt *gt = m->private;
+	struct drm_i915_private *i915 = gt->i915;
+	struct intel_uncore *uncore = gt->uncore;
+	struct intel_engine_cs *engine;
+	enum intel_engine_id id;
+	intel_wakeref_t wakeref;
+	int i;
+
+	wakeref = intel_runtime_pm_get(uncore->rpm);
+
+	if (IS_CHERRYVIEW(i915)) {
+		seq_printf(m, "Master Interrupt Control:\t%08x\n",
+			   intel_uncore_read(uncore, GEN8_MASTER_IRQ));
+
+		for (i = 0; i < 4; i++) {
+			seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
+				   i, intel_uncore_read(uncore,
+							GEN8_GT_IMR(i)));
+			seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
+				   i, intel_uncore_read(uncore,
+							GEN8_GT_IIR(i)));
+			seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
+				   i, intel_uncore_read(uncore,
+							GEN8_GT_IER(i)));
+		}
+
+	} else if (GRAPHICS_VER(i915) >= 11) {
+		seq_printf(m, "Master Interrupt Control:  %08x\n",
+			   intel_uncore_read(uncore, GEN11_GFX_MSTR_IRQ));
+
+		seq_printf(m, "Render/Copy Intr Enable:   %08x\n",
+			   intel_uncore_read(uncore,
+					     GEN11_RENDER_COPY_INTR_ENABLE));
+		seq_printf(m, "VCS/VECS Intr Enable:      %08x\n",
+			   intel_uncore_read(uncore,
+					     GEN11_VCS_VECS_INTR_ENABLE));
+		seq_printf(m, "GUC/SG Intr Enable:\t   %08x\n",
+			   intel_uncore_read(uncore,
+					     GEN11_GUC_SG_INTR_ENABLE));
+		seq_printf(m, "GPM/WGBOXPERF Intr Enable: %08x\n",
+			   intel_uncore_read(uncore,
+					     GEN11_GPM_WGBOXPERF_INTR_ENABLE));
+		seq_printf(m, "Crypto Intr Enable:\t   %08x\n",
+			   intel_uncore_read(uncore,
+					     GEN11_CRYPTO_RSVD_INTR_ENABLE));
+		seq_printf(m, "GUnit/CSME Intr Enable:\t   %08x\n",
+			   intel_uncore_read(uncore,
+					     GEN11_GUNIT_CSME_INTR_ENABLE));
+
+	} else if (GRAPHICS_VER(i915) >= 8) {
+		seq_printf(m, "Master Interrupt Control:\t%08x\n",
+			   intel_uncore_read(uncore, GEN8_MASTER_IRQ));
+
+		for (i = 0; i < 4; i++) {
+			seq_printf(m, "GT Interrupt IMR %d:\t%08x\n",
+				   i, intel_uncore_read(uncore,
+							GEN8_GT_IMR(i)));
+			seq_printf(m, "GT Interrupt IIR %d:\t%08x\n",
+				   i, intel_uncore_read(uncore,
+							GEN8_GT_IIR(i)));
+			seq_printf(m, "GT Interrupt IER %d:\t%08x\n",
+				   i, intel_uncore_read(uncore,
+							GEN8_GT_IER(i)));
+		}
+
+	} else if (IS_VALLEYVIEW(i915)) {
+		seq_printf(m, "Master IER:\t%08x\n",
+			   intel_uncore_read(uncore, VLV_MASTER_IER));
+
+		seq_printf(m, "Render IER:\t%08x\n",
+			   intel_uncore_read(uncore, GTIER));
+		seq_printf(m, "Render IIR:\t%08x\n",
+			   intel_uncore_read(uncore, GTIIR));
+		seq_printf(m, "Render IMR:\t%08x\n",
+			   intel_uncore_read(uncore, GTIMR));
+
+		seq_printf(m, "PM IER:\t\t%08x\n",
+			   intel_uncore_read(uncore, GEN6_PMIER));
+		seq_printf(m, "PM IIR:\t\t%08x\n",
+			   intel_uncore_read(uncore, GEN6_PMIIR));
+		seq_printf(m, "PM IMR:\t\t%08x\n",
+			   intel_uncore_read(uncore, GEN6_PMIMR));
+
+	} else if (!HAS_PCH_SPLIT(i915)) {
+		seq_printf(m, "Interrupt enable:    %08x\n",
+			   intel_uncore_read(uncore, GEN2_IER));
+		seq_printf(m, "Interrupt identity:  %08x\n",
+			   intel_uncore_read(uncore, GEN2_IIR));
+		seq_printf(m, "Interrupt mask:      %08x\n",
+			   intel_uncore_read(uncore, GEN2_IMR));
+	} else {
+		seq_printf(m, "Graphics Interrupt enable:		%08x\n",
+			   intel_uncore_read(uncore, GTIER));
+		seq_printf(m, "Graphics Interrupt identity:		%08x\n",
+			   intel_uncore_read(uncore, GTIIR));
+		seq_printf(m, "Graphics Interrupt mask:		%08x\n",
+			   intel_uncore_read(uncore, GTIMR));
+	}
+
+	if (GRAPHICS_VER(i915) >= 11) {
+		seq_printf(m, "RCS Intr Mask:\t %08x\n",
+			   intel_uncore_read(uncore,
+					     GEN11_RCS0_RSVD_INTR_MASK));
+		seq_printf(m, "BCS Intr Mask:\t %08x\n",
+			   intel_uncore_read(uncore,
+					     GEN11_BCS_RSVD_INTR_MASK));
+		seq_printf(m, "VCS0/VCS1 Intr Mask:\t %08x\n",
+			   intel_uncore_read(uncore,
+					     GEN11_VCS0_VCS1_INTR_MASK));
+		seq_printf(m, "VCS2/VCS3 Intr Mask:\t %08x\n",
+			   intel_uncore_read(uncore,
+					     GEN11_VCS2_VCS3_INTR_MASK));
+
+		if (HAS_ENGINE(gt, VCS4) || HAS_ENGINE(gt, VCS5))
+			seq_printf(m, "VCS4/VCS5 Intr Mask:\t %08x\n",
+				   intel_uncore_read(uncore,
+						GEN12_VCS4_VCS5_INTR_MASK));
+		if (HAS_ENGINE(gt, VCS6) || HAS_ENGINE(gt, VCS7))
+			seq_printf(m, "VCS6/VCS7 Intr Mask:\t %08x\n",
+				   intel_uncore_read(uncore,
+						GEN12_VCS6_VCS7_INTR_MASK));
+
+		seq_printf(m, "VECS0/VECS1 Intr Mask:\t %08x\n",
+			   intel_uncore_read(uncore,
+					     GEN11_VECS0_VECS1_INTR_MASK));
+
+		if (HAS_ENGINE(gt, VECS2) || HAS_ENGINE(gt, VECS3))
+			seq_printf(m, "VECS2/VECS3 Intr Mask:\t %08x\n",
+				   intel_uncore_read(uncore,
+						GEN12_VECS2_VECS3_INTR_MASK));
+
+		seq_printf(m, "GUC/SG Intr Mask:\t %08x\n",
+			   intel_uncore_read(uncore,
+					     GEN11_GUC_SG_INTR_MASK));
+		seq_printf(m, "GPM/WGBOXPERF Intr Mask: %08x\n",
+			   intel_uncore_read(uncore,
+					     GEN11_GPM_WGBOXPERF_INTR_MASK));
+		seq_printf(m, "Crypto Intr Mask:\t %08x\n",
+			   intel_uncore_read(uncore,
+					     GEN11_CRYPTO_RSVD_INTR_MASK));
+		seq_printf(m, "Gunit/CSME Intr Mask:\t %08x\n",
+			   intel_uncore_read(uncore,
+					     GEN11_GUNIT_CSME_INTR_MASK));
+
+	} else if (GRAPHICS_VER(i915) >= 6) {
+		for_each_engine(engine, gt, id) {
+			seq_printf(m,
+				   "Graphics Interrupt mask (%s):	%08x\n",
+				   engine->name, ENGINE_READ(engine, RING_IMR));
+		}
+	}
+
+	intel_runtime_pm_put(uncore->rpm, wakeref);
+
+	return 0;
+}
+DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(interrupt_info);
+
+void intel_gt_irq_debugfs_register(struct intel_gt *gt, struct dentry *root)
+{
+	static const struct intel_gt_debugfs_file files[] = {
+		{ "interrupt_info", &interrupt_info_fops, NULL },
+	};
+
+	intel_gt_debugfs_register_files(root, files, ARRAY_SIZE(files), gt);
+}
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_irq_debugfs.h b/drivers/gpu/drm/i915/gt/intel_gt_irq_debugfs.h
new file mode 100644
index 000000000000..95e519705001
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/intel_gt_irq_debugfs.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: MIT */
+
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#ifndef INTEL_GT_IRQ_DEBUGFS_H
+#define INTEL_GT_IRQ_DEBUGFS_H
+
+struct intel_gt;
+struct dentry;
+
+void intel_gt_irq_debugfs_register(struct intel_gt *gt, struct dentry *root);
+
+#endif /* INTEL_GT_IRQ_DEBUGFS_H */
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c
index 5f84ad602642..c75af6f97e7e 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c
@@ -19,6 +19,36 @@
 #include "intel_sideband.h"
 #include "intel_uncore.h"
 
+static int forcewake_user_open(struct inode *inode, struct file *file)
+{
+	struct intel_gt *gt = inode->i_private;
+
+	atomic_inc(&gt->user_wakeref);
+	intel_gt_pm_get(gt);
+	if (GRAPHICS_VER(gt->i915) >= 6)
+		intel_uncore_forcewake_user_get(gt->uncore);
+
+	return 0;
+}
+
+static int forcewake_user_release(struct inode *inode, struct file *file)
+{
+	struct intel_gt *gt = inode->i_private;
+
+	if (GRAPHICS_VER(gt->i915) >= 6)
+		intel_uncore_forcewake_user_put(gt->uncore);
+	intel_gt_pm_put(gt);
+	atomic_dec(&gt->user_wakeref);
+
+	return 0;
+}
+
+static const struct file_operations forcewake_user_fops = {
+	.owner = THIS_MODULE,
+	.open = forcewake_user_open,
+	.release = forcewake_user_release,
+};
+
 static int fw_domains_show(struct seq_file *m, void *data)
 {
 	struct intel_gt *gt = m->private;
@@ -627,6 +657,7 @@ void intel_gt_pm_debugfs_register(struct intel_gt *gt, struct dentry *root)
 		{ "drpc", &drpc_fops, NULL },
 		{ "frequency", &frequency_fops, NULL },
 		{ "forcewake", &fw_domains_fops, NULL },
+		{ "forcewake_user", &forcewake_user_fops, NULL},
 		{ "llc", &llc_fops, llc_eval },
 		{ "rps_boost", &rps_boost_fops, rps_eval },
 	};
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index fdbd46ff59e0..5a2a9315c889 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -554,42 +554,6 @@ static int i915_wa_registers(struct seq_file *m, void *unused)
 	return 0;
 }
 
-static int
-i915_wedged_get(void *data, u64 *val)
-{
-	struct drm_i915_private *i915 = data;
-	int ret = intel_gt_terminally_wedged(&i915->gt);
-
-	switch (ret) {
-	case -EIO:
-		*val = 1;
-		return 0;
-	case 0:
-		*val = 0;
-		return 0;
-	default:
-		return ret;
-	}
-}
-
-static int
-i915_wedged_set(void *data, u64 val)
-{
-	struct drm_i915_private *i915 = data;
-
-	/* Flush any previous reset before applying for a new one */
-	wait_event(i915->gt.reset.queue,
-		   !test_bit(I915_RESET_BACKOFF, &i915->gt.reset.flags));
-
-	intel_gt_handle_error(&i915->gt, val, I915_ERROR_CAPTURE,
-			      "Manually set wedged engine mask = %llx", val);
-	return 0;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(i915_wedged_fops,
-			i915_wedged_get, i915_wedged_set,
-			"%llu\n");
-
 static int
 i915_perf_noa_delay_set(void *data, u64 val)
 {
@@ -725,38 +689,6 @@ static int i915_sseu_status(struct seq_file *m, void *unused)
 	return intel_sseu_status(m, gt);
 }
 
-static int i915_forcewake_open(struct inode *inode, struct file *file)
-{
-	struct drm_i915_private *i915 = inode->i_private;
-	struct intel_gt *gt = &i915->gt;
-
-	atomic_inc(&gt->user_wakeref);
-	intel_gt_pm_get(gt);
-	if (GRAPHICS_VER(i915) >= 6)
-		intel_uncore_forcewake_user_get(gt->uncore);
-
-	return 0;
-}
-
-static int i915_forcewake_release(struct inode *inode, struct file *file)
-{
-	struct drm_i915_private *i915 = inode->i_private;
-	struct intel_gt *gt = &i915->gt;
-
-	if (GRAPHICS_VER(i915) >= 6)
-		intel_uncore_forcewake_user_put(&i915->uncore);
-	intel_gt_pm_put(gt);
-	atomic_dec(&gt->user_wakeref);
-
-	return 0;
-}
-
-static const struct file_operations i915_forcewake_fops = {
-	.owner = THIS_MODULE,
-	.open = i915_forcewake_open,
-	.release = i915_forcewake_release,
-};
-
 static const struct drm_info_list i915_debugfs_list[] = {
 	{"i915_capabilities", i915_capabilities, 0},
 	{"i915_gem_objects", i915_gem_object_info, 0},
@@ -775,7 +707,6 @@ static const struct i915_debugfs_files {
 	const struct file_operations *fops;
 } i915_debugfs_files[] = {
 	{"i915_perf_noa_delay", &i915_perf_noa_delay_fops},
-	{"i915_wedged", &i915_wedged_fops},
 	{"i915_gem_drop_caches", &i915_drop_caches_fops},
 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
 	{"i915_error_state", &i915_error_state_fops},
@@ -790,8 +721,6 @@ void i915_debugfs_register(struct drm_i915_private *dev_priv)
 
 	i915_debugfs_params(dev_priv);
 
-	debugfs_create_file("i915_forcewake_user", S_IRUSR, minor->debugfs_root,
-			    to_i915(minor->dev), &i915_forcewake_fops);
 	for (i = 0; i < ARRAY_SIZE(i915_debugfs_files); i++) {
 		debugfs_create_file(i915_debugfs_files[i].name,
 				    S_IRUGO | S_IWUSR,
-- 
2.27.0