[PATCH v2 0/2] Introduce multitile support

[PATCH v2 0/2] Introduce multitile support

[Andi Shyti]

Hi,

This is the second series that prepares i915 to host multitile
platforms. It introduces the for_each_gt() macro that loops over
the tiles to perform per gt actions.

This patch is a combination of two patches developed originally
by Abdiel, who introduced some refactoring during probe, and then
Tvrtko has added the necessary tools to start using the various
tiles.

The second patch re-organises the sysfs interface to expose the
API for each of the GTs. I decided to prioritise this patch
over others to unblock Sujaritha for further development.

A third series will still follow this.

Thanks,
Andi

Patchwork: https://patchwork.freedesktop.org/series/98741/

Changelog
=========
v1 -> v2
 - fixed a couple of coding style issues in patch 2.

Andi Shyti (1):
  drm/i915/gt: make a gt sysfs group and move power management files

Tvrtko Ursulin (1):
  drm/i915: Prepare for multiple GTs

 drivers/gpu/drm/i915/Makefile                 |   4 +-
 drivers/gpu/drm/i915/gt/intel_gt.c            | 141 ++++++-
 drivers/gpu/drm/i915/gt/intel_gt.h            |  14 +-
 drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   9 +-
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |   7 +
 drivers/gpu/drm/i915/gt/sysfs_gt.c            | 126 ++++++
 drivers/gpu/drm/i915/gt/sysfs_gt.h            |  44 ++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c         | 393 ++++++++++++++++++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h         |  16 +
 drivers/gpu/drm/i915/i915_driver.c            |  29 +-
 drivers/gpu/drm/i915/i915_drv.h               |   8 +
 drivers/gpu/drm/i915/i915_reg.h               |   1 +
 drivers/gpu/drm/i915/i915_sysfs.c             | 315 +-------------
 drivers/gpu/drm/i915/i915_sysfs.h             |   3 +
 drivers/gpu/drm/i915/intel_memory_region.h    |   3 +
 drivers/gpu/drm/i915/intel_uncore.c           |  12 +-
 drivers/gpu/drm/i915/intel_uncore.h           |   3 +-
 .../gpu/drm/i915/selftests/mock_gem_device.c  |   5 +-
 18 files changed, 785 insertions(+), 348 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.h
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h

-- 
2.34.1

[Intel-gfx] [PATCH v2 0/2] Introduce multitile support

[Andi Shyti]

Hi,

This is the second series that prepares i915 to host multitile
platforms. It introduces the for_each_gt() macro that loops over
the tiles to perform per gt actions.

This patch is a combination of two patches developed originally
by Abdiel, who introduced some refactoring during probe, and then
Tvrtko has added the necessary tools to start using the various
tiles.

The second patch re-organises the sysfs interface to expose the
API for each of the GTs. I decided to prioritise this patch
over others to unblock Sujaritha for further development.

A third series will still follow this.

Thanks,
Andi

Patchwork: https://patchwork.freedesktop.org/series/98741/

Changelog
=========
v1 -> v2
 - fixed a couple of coding style issues in patch 2.

Andi Shyti (1):
  drm/i915/gt: make a gt sysfs group and move power management files

Tvrtko Ursulin (1):
  drm/i915: Prepare for multiple GTs

 drivers/gpu/drm/i915/Makefile                 |   4 +-
 drivers/gpu/drm/i915/gt/intel_gt.c            | 141 ++++++-
 drivers/gpu/drm/i915/gt/intel_gt.h            |  14 +-
 drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   9 +-
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |   7 +
 drivers/gpu/drm/i915/gt/sysfs_gt.c            | 126 ++++++
 drivers/gpu/drm/i915/gt/sysfs_gt.h            |  44 ++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c         | 393 ++++++++++++++++++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h         |  16 +
 drivers/gpu/drm/i915/i915_driver.c            |  29 +-
 drivers/gpu/drm/i915/i915_drv.h               |   8 +
 drivers/gpu/drm/i915/i915_reg.h               |   1 +
 drivers/gpu/drm/i915/i915_sysfs.c             | 315 +-------------
 drivers/gpu/drm/i915/i915_sysfs.h             |   3 +
 drivers/gpu/drm/i915/intel_memory_region.h    |   3 +
 drivers/gpu/drm/i915/intel_uncore.c           |  12 +-
 drivers/gpu/drm/i915/intel_uncore.h           |   3 +-
 .../gpu/drm/i915/selftests/mock_gem_device.c  |   5 +-
 18 files changed, 785 insertions(+), 348 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.h
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h

-- 
2.34.1

[PATCH v2 1/2] drm/i915: Prepare for multiple GTs

[Andi Shyti]

From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

On a multi-tile platform, each tile has its own registers + GGTT
space, and BAR 0 is extended to cover all of them.

Up to four gts are supported in i915->gt[], with slot zero
shadowing the existing i915->gt0 to enable source compatibility
with legacy driver paths. A for_each_gt macro is added to iterate
over the GTs and will be used by upcoming patches that convert
various parts of the driver to be multi-gt aware.

Only the primary/root tile is initialized for now; the other
tiles will be detected and plugged in by future patches once the
necessary infrastructure is in place to handle them.

Signed-off-by: Abdiel Janulgue <abdiel.janulgue@gmail.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_gt.c            | 139 ++++++++++++++++--
 drivers/gpu/drm/i915/gt/intel_gt.h            |  14 +-
 drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   9 +-
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |   7 +
 drivers/gpu/drm/i915/i915_driver.c            |  29 ++--
 drivers/gpu/drm/i915/i915_drv.h               |   6 +
 drivers/gpu/drm/i915/intel_memory_region.h    |   3 +
 drivers/gpu/drm/i915/intel_uncore.c           |  12 +-
 drivers/gpu/drm/i915/intel_uncore.h           |   3 +-
 .../gpu/drm/i915/selftests/mock_gem_device.c  |   5 +-
 10 files changed, 185 insertions(+), 42 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 622cdfed8a8b..17927da9e23e 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -27,7 +27,8 @@
 #include "shmem_utils.h"
 #include "pxp/intel_pxp.h"
 
-void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
+static void
+__intel_gt_init_early(struct intel_gt *gt)
 {
 	spin_lock_init(&gt->irq_lock);
 
@@ -47,19 +48,27 @@ void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
 	intel_rps_init_early(&gt->rps);
 }
 
+/* Preliminary initialization of Tile 0 */
 void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
 {
 	gt->i915 = i915;
 	gt->uncore = &i915->uncore;
+
+	__intel_gt_init_early(gt);
 }
 
-int intel_gt_probe_lmem(struct intel_gt *gt)
+static int intel_gt_probe_lmem(struct intel_gt *gt)
 {
 	struct drm_i915_private *i915 = gt->i915;
+	unsigned int instance = gt->info.id;
 	struct intel_memory_region *mem;
 	int id;
 	int err;
 
+	id = INTEL_REGION_LMEM + instance;
+	if (drm_WARN_ON(&i915->drm, id >= INTEL_REGION_STOLEN_SMEM))
+		return -ENODEV;
+
 	mem = intel_gt_setup_lmem(gt);
 	if (mem == ERR_PTR(-ENODEV))
 		mem = intel_gt_setup_fake_lmem(gt);
@@ -74,9 +83,8 @@ int intel_gt_probe_lmem(struct intel_gt *gt)
 		return err;
 	}
 
-	id = INTEL_REGION_LMEM;
-
 	mem->id = id;
+	mem->instance = instance;
 
 	intel_memory_region_set_name(mem, "local%u", mem->instance);
 
@@ -791,16 +799,21 @@ void intel_gt_driver_release(struct intel_gt *gt)
 	intel_gt_fini_buffer_pool(gt);
 }
 
-void intel_gt_driver_late_release(struct intel_gt *gt)
+void intel_gt_driver_late_release(struct drm_i915_private *i915)
 {
+	struct intel_gt *gt;
+	unsigned int id;
+
 	/* We need to wait for inflight RCU frees to release their grip */
 	rcu_barrier();
 
-	intel_uc_driver_late_release(&gt->uc);
-	intel_gt_fini_requests(gt);
-	intel_gt_fini_reset(gt);
-	intel_gt_fini_timelines(gt);
-	intel_engines_free(gt);
+	for_each_gt(gt, i915, id) {
+		intel_uc_driver_late_release(&gt->uc);
+		intel_gt_fini_requests(gt);
+		intel_gt_fini_reset(gt);
+		intel_gt_fini_timelines(gt);
+		intel_engines_free(gt);
+	}
 }
 
 /**
@@ -909,6 +922,112 @@ u32 intel_gt_read_register_fw(struct intel_gt *gt, i915_reg_t reg)
 	return intel_uncore_read_fw(gt->uncore, reg);
 }
 
+static int
+intel_gt_tile_setup(struct intel_gt *gt, phys_addr_t phys_addr)
+{
+	struct drm_i915_private *i915 = gt->i915;
+	unsigned int id = gt->info.id;
+	int ret;
+
+	if (id) {
+		struct intel_uncore_mmio_debug *mmio_debug;
+		struct intel_uncore *uncore;
+
+		/* For multi-tile platforms BAR0 must have at least 16MB per tile */
+		if (GEM_WARN_ON(pci_resource_len(to_pci_dev(i915->drm.dev), 0) <
+				(id + 1) * SZ_16M))
+			return -EINVAL;
+
+		uncore = kzalloc(sizeof(*uncore), GFP_KERNEL);
+		if (!gt->uncore)
+			return -ENOMEM;
+
+		mmio_debug = kzalloc(sizeof(*mmio_debug), GFP_KERNEL);
+		if (!mmio_debug) {
+			kfree(uncore);
+			return -ENOMEM;
+		}
+
+		gt->uncore = uncore;
+		gt->uncore->debug = mmio_debug;
+
+		__intel_gt_init_early(gt);
+	}
+
+	intel_uncore_init_early(gt->uncore, gt);
+
+	ret = intel_uncore_setup_mmio(gt->uncore, phys_addr);
+	if (ret)
+		return ret;
+
+	gt->phys_addr = phys_addr;
+
+	return 0;
+}
+
+static void
+intel_gt_tile_cleanup(struct intel_gt *gt)
+{
+	intel_uncore_cleanup_mmio(gt->uncore);
+
+	if (gt->info.id) {
+		kfree(gt->uncore);
+		kfree(gt);
+	}
+}
+
+int intel_gt_probe_all(struct drm_i915_private *i915)
+{
+	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
+	struct intel_gt *gt = &i915->gt0;
+	phys_addr_t phys_addr;
+	unsigned int mmio_bar;
+	int ret;
+
+	mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0;
+	phys_addr = pci_resource_start(pdev, mmio_bar);
+
+	/*
+	 * We always have at least one primary GT on any device
+	 * and it has been already initialized early during probe
+	 * in i915_driver_probe()
+	 */
+	ret = intel_gt_tile_setup(gt, phys_addr);
+	if (ret)
+		return ret;
+
+	i915->gt[0] = gt;
+
+	/* TODO: add more tiles */
+	return 0;
+}
+
+int intel_gt_tiles_init(struct drm_i915_private *i915)
+{
+	struct intel_gt *gt;
+	unsigned int id;
+	int ret;
+
+	for_each_gt(gt, i915, id) {
+		ret = intel_gt_probe_lmem(gt);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+void intel_gt_release_all(struct drm_i915_private *i915)
+{
+	struct intel_gt *gt;
+	unsigned int id;
+
+	for_each_gt(gt, i915, id) {
+		intel_gt_tile_cleanup(gt);
+		i915->gt[id] = NULL;
+	}
+}
+
 void intel_gt_info_print(const struct intel_gt_info *info,
 			 struct drm_printer *p)
 {
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
index 94e1bac8c0cc..fcd10d88612a 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt.h
@@ -35,9 +35,7 @@ static inline struct intel_gt *huc_to_gt(struct intel_huc *huc)
 }
 
 void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915);
-void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915);
 int intel_gt_assign_ggtt(struct intel_gt *gt);
-int intel_gt_probe_lmem(struct intel_gt *gt);
 int intel_gt_init_mmio(struct intel_gt *gt);
 int __must_check intel_gt_init_hw(struct intel_gt *gt);
 int intel_gt_init(struct intel_gt *gt);
@@ -47,7 +45,7 @@ void intel_gt_driver_unregister(struct intel_gt *gt);
 void intel_gt_driver_remove(struct intel_gt *gt);
 void intel_gt_driver_release(struct intel_gt *gt);
 
-void intel_gt_driver_late_release(struct intel_gt *gt);
+void intel_gt_driver_late_release(struct drm_i915_private *i915);
 
 int intel_gt_wait_for_idle(struct intel_gt *gt, long timeout);
 
@@ -86,6 +84,16 @@ static inline bool intel_gt_needs_read_steering(struct intel_gt *gt,
 
 u32 intel_gt_read_register_fw(struct intel_gt *gt, i915_reg_t reg);
 
+int intel_gt_probe_all(struct drm_i915_private *i915);
+int intel_gt_tiles_init(struct drm_i915_private *i915);
+void intel_gt_release_all(struct drm_i915_private *i915);
+
+#define for_each_gt(gt__, i915__, id__) \
+	for ((id__) = 0; \
+	     (id__) < I915_MAX_GT; \
+	     (id__)++) \
+		for_each_if(((gt__) = (i915__)->gt[(id__)]))
+
 void intel_gt_info_print(const struct intel_gt_info *info,
 			 struct drm_printer *p);
 
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
index c0fa41e4c803..e66479d33bc3 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
@@ -128,7 +128,14 @@ static const struct intel_wakeref_ops wf_ops = {
 
 void intel_gt_pm_init_early(struct intel_gt *gt)
 {
-	intel_wakeref_init(&gt->wakeref, gt->uncore->rpm, &wf_ops);
+	/*
+	 * We access the runtime_pm structure via gt->i915 here rather than
+	 * gt->uncore as we do elsewhere in the file because gt->uncore is not
+	 * yet initialized for all tiles at this point in the driver startup.
+	 * runtime_pm is per-device rather than per-tile, so this is still the
+	 * correct structure.
+	 */
+	intel_wakeref_init(&gt->wakeref, &gt->i915->runtime_pm, &wf_ops);
 	seqcount_mutex_init(&gt->stats.lock, &gt->wakeref.mutex);
 }
 
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
index 14216cc471b1..7311e485faae 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
@@ -180,7 +180,14 @@ struct intel_gt {
 
 	const struct intel_mmio_range *steering_table[NUM_STEERING_TYPES];
 
+	/*
+	 * Base of per-tile GTTMMADR where we can derive the MMIO and the GGTT.
+	 */
+	phys_addr_t phys_addr;
+
 	struct intel_gt_info {
+		unsigned int id;
+
 		intel_engine_mask_t engine_mask;
 
 		u32 l3bank_mask;
diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
index 8bef67cb6c33..aa00965cd36c 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -316,9 +316,8 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
 	intel_device_info_subplatform_init(dev_priv);
 	intel_step_init(dev_priv);
 
-	intel_gt_init_early(to_gt(dev_priv), dev_priv);
+	/* All tiles share a single mmio_debug */
 	intel_uncore_mmio_debug_init_early(&dev_priv->mmio_debug);
-	intel_uncore_init_early(&dev_priv->uncore, to_gt(dev_priv));
 
 	spin_lock_init(&dev_priv->irq_lock);
 	spin_lock_init(&dev_priv->gpu_error.lock);
@@ -349,7 +348,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
 
 	intel_wopcm_init_early(&dev_priv->wopcm);
 
-	__intel_gt_init_early(to_gt(dev_priv), dev_priv);
+	intel_gt_init_early(to_gt(dev_priv), dev_priv);
 
 	i915_gem_init_early(dev_priv);
 
@@ -370,7 +369,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
 
 err_gem:
 	i915_gem_cleanup_early(dev_priv);
-	intel_gt_driver_late_release(to_gt(dev_priv));
+	intel_gt_driver_late_release(dev_priv);
 	intel_region_ttm_device_fini(dev_priv);
 err_ttm:
 	vlv_suspend_cleanup(dev_priv);
@@ -389,7 +388,7 @@ static void i915_driver_late_release(struct drm_i915_private *dev_priv)
 	intel_irq_fini(dev_priv);
 	intel_power_domains_cleanup(dev_priv);
 	i915_gem_cleanup_early(dev_priv);
-	intel_gt_driver_late_release(to_gt(dev_priv));
+	intel_gt_driver_late_release(dev_priv);
 	intel_region_ttm_device_fini(dev_priv);
 	vlv_suspend_cleanup(dev_priv);
 	i915_workqueues_cleanup(dev_priv);
@@ -420,13 +419,9 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv)
 	if (ret < 0)
 		return ret;
 
-	ret = intel_uncore_setup_mmio(&dev_priv->uncore);
-	if (ret < 0)
-		goto err_bridge;
-
 	ret = intel_uncore_init_mmio(&dev_priv->uncore);
 	if (ret)
-		goto err_mmio;
+		return ret;
 
 	/* Try to make sure MCHBAR is enabled before poking at it */
 	intel_setup_mchbar(dev_priv);
@@ -444,9 +439,6 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv)
 err_uncore:
 	intel_teardown_mchbar(dev_priv);
 	intel_uncore_fini_mmio(&dev_priv->uncore);
-err_mmio:
-	intel_uncore_cleanup_mmio(&dev_priv->uncore);
-err_bridge:
 	pci_dev_put(dev_priv->bridge_dev);
 
 	return ret;
@@ -460,7 +452,6 @@ static void i915_driver_mmio_release(struct drm_i915_private *dev_priv)
 {
 	intel_teardown_mchbar(dev_priv);
 	intel_uncore_fini_mmio(&dev_priv->uncore);
-	intel_uncore_cleanup_mmio(&dev_priv->uncore);
 	pci_dev_put(dev_priv->bridge_dev);
 }
 
@@ -593,7 +584,7 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
 	if (ret)
 		goto err_ggtt;
 
-	ret = intel_gt_probe_lmem(to_gt(dev_priv));
+	ret = intel_gt_tiles_init(dev_priv);
 	if (ret)
 		goto err_mem_regions;
 
@@ -858,10 +849,14 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	intel_vgpu_detect(i915);
 
-	ret = i915_driver_mmio_probe(i915);
+	ret = intel_gt_probe_all(i915);
 	if (ret < 0)
 		goto out_runtime_pm_put;
 
+	ret = i915_driver_mmio_probe(i915);
+	if (ret < 0)
+		goto out_tiles_cleanup;
+
 	ret = i915_driver_hw_probe(i915);
 	if (ret < 0)
 		goto out_cleanup_mmio;
@@ -918,6 +913,8 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	i915_ggtt_driver_late_release(i915);
 out_cleanup_mmio:
 	i915_driver_mmio_release(i915);
+out_tiles_cleanup:
+	intel_gt_release_all(i915);
 out_runtime_pm_put:
 	enable_rpm_wakeref_asserts(&i915->runtime_pm);
 	i915_driver_late_release(i915);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 6caec2eca8cd..14dbbc5ba9e4 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -991,6 +991,12 @@ struct drm_i915_private {
 	/* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
 	struct intel_gt gt0;
 
+	/*
+	 * i915->gt[0] == &i915->gt0
+	 */
+#define I915_MAX_GT 4
+	struct intel_gt *gt[I915_MAX_GT];
+
 	struct {
 		struct i915_gem_contexts {
 			spinlock_t lock; /* locks list */
diff --git a/drivers/gpu/drm/i915/intel_memory_region.h b/drivers/gpu/drm/i915/intel_memory_region.h
index 5625c9c38993..6a6324a08e72 100644
--- a/drivers/gpu/drm/i915/intel_memory_region.h
+++ b/drivers/gpu/drm/i915/intel_memory_region.h
@@ -30,6 +30,9 @@ enum intel_memory_type {
 enum intel_region_id {
 	INTEL_REGION_SMEM = 0,
 	INTEL_REGION_LMEM,
+	INTEL_REGION_LMEM1,
+	INTEL_REGION_LMEM2,
+	INTEL_REGION_LMEM3,
 	INTEL_REGION_STOLEN_SMEM,
 	INTEL_REGION_STOLEN_LMEM,
 	INTEL_REGION_UNKNOWN, /* Should be last */
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 41d082213e81..016639c1275d 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -2020,14 +2020,11 @@ static int i915_pmic_bus_access_notifier(struct notifier_block *nb,
 	return NOTIFY_OK;
 }
 
-int intel_uncore_setup_mmio(struct intel_uncore *uncore)
+int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr)
 {
 	struct drm_i915_private *i915 = uncore->i915;
-	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
-	int mmio_bar;
 	int mmio_size;
 
-	mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0;
 	/*
 	 * Before gen4, the registers and the GTT are behind different BARs.
 	 * However, from gen4 onwards, the registers and the GTT are shared
@@ -2044,7 +2041,7 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore)
 	else
 		mmio_size = 2 * 1024 * 1024;
 
-	uncore->regs = pci_iomap(pdev, mmio_bar, mmio_size);
+	uncore->regs = ioremap(phys_addr, mmio_size);
 	if (uncore->regs == NULL) {
 		drm_err(&i915->drm, "failed to map registers\n");
 		return -EIO;
@@ -2055,9 +2052,8 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore)
 
 void intel_uncore_cleanup_mmio(struct intel_uncore *uncore)
 {
-	struct pci_dev *pdev = to_pci_dev(uncore->i915->drm.dev);
-
-	pci_iounmap(pdev, uncore->regs);
+	if (uncore->regs)
+		iounmap(uncore->regs);
 }
 
 void intel_uncore_init_early(struct intel_uncore *uncore,
diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h
index 210fe2a71612..2989032b580b 100644
--- a/drivers/gpu/drm/i915/intel_uncore.h
+++ b/drivers/gpu/drm/i915/intel_uncore.h
@@ -29,6 +29,7 @@
 #include <linux/notifier.h>
 #include <linux/hrtimer.h>
 #include <linux/io-64-nonatomic-lo-hi.h>
+#include <linux/types.h>
 
 #include "i915_reg.h"
 
@@ -219,7 +220,7 @@ void
 intel_uncore_mmio_debug_init_early(struct intel_uncore_mmio_debug *mmio_debug);
 void intel_uncore_init_early(struct intel_uncore *uncore,
 			     struct intel_gt *gt);
-int intel_uncore_setup_mmio(struct intel_uncore *uncore);
+int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr);
 int intel_uncore_init_mmio(struct intel_uncore *uncore);
 void intel_uncore_prune_engine_fw_domains(struct intel_uncore *uncore,
 					  struct intel_gt *gt);
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 28a0f054009a..79520f217c90 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -73,7 +73,7 @@ static void mock_device_release(struct drm_device *dev)
 	destroy_workqueue(i915->wq);
 
 	intel_region_ttm_device_fini(i915);
-	intel_gt_driver_late_release(to_gt(i915));
+	intel_gt_driver_late_release(i915);
 	intel_memory_regions_driver_release(i915);
 
 	drm_mode_config_cleanup(&i915->drm);
@@ -179,7 +179,6 @@ struct drm_i915_private *mock_gem_device(void)
 
 	i915_gem_init__mm(i915);
 	intel_gt_init_early(to_gt(i915), i915);
-	__intel_gt_init_early(to_gt(i915), i915);
 	mock_uncore_init(&i915->uncore, i915);
 	atomic_inc(&to_gt(i915)->wakeref.count); /* disable; no hw support */
 	to_gt(i915)->awake = -ENODEV;
@@ -227,7 +226,7 @@ struct drm_i915_private *mock_gem_device(void)
 err_drv:
 	intel_region_ttm_device_fini(i915);
 err_ttm:
-	intel_gt_driver_late_release(to_gt(i915));
+	intel_gt_driver_late_release(i915);
 	intel_memory_regions_driver_release(i915);
 	drm_mode_config_cleanup(&i915->drm);
 	mock_destroy_device(i915);
-- 
2.34.1

[Intel-gfx] [PATCH v2 1/2] drm/i915: Prepare for multiple GTs

[Andi Shyti]

From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

On a multi-tile platform, each tile has its own registers + GGTT
space, and BAR 0 is extended to cover all of them.

Up to four gts are supported in i915->gt[], with slot zero
shadowing the existing i915->gt0 to enable source compatibility
with legacy driver paths. A for_each_gt macro is added to iterate
over the GTs and will be used by upcoming patches that convert
various parts of the driver to be multi-gt aware.

Only the primary/root tile is initialized for now; the other
tiles will be detected and plugged in by future patches once the
necessary infrastructure is in place to handle them.

Signed-off-by: Abdiel Janulgue <abdiel.janulgue@gmail.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_gt.c            | 139 ++++++++++++++++--
 drivers/gpu/drm/i915/gt/intel_gt.h            |  14 +-
 drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   9 +-
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |   7 +
 drivers/gpu/drm/i915/i915_driver.c            |  29 ++--
 drivers/gpu/drm/i915/i915_drv.h               |   6 +
 drivers/gpu/drm/i915/intel_memory_region.h    |   3 +
 drivers/gpu/drm/i915/intel_uncore.c           |  12 +-
 drivers/gpu/drm/i915/intel_uncore.h           |   3 +-
 .../gpu/drm/i915/selftests/mock_gem_device.c  |   5 +-
 10 files changed, 185 insertions(+), 42 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 622cdfed8a8b..17927da9e23e 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -27,7 +27,8 @@
 #include "shmem_utils.h"
 #include "pxp/intel_pxp.h"
 
-void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
+static void
+__intel_gt_init_early(struct intel_gt *gt)
 {
 	spin_lock_init(&gt->irq_lock);
 
@@ -47,19 +48,27 @@ void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
 	intel_rps_init_early(&gt->rps);
 }
 
+/* Preliminary initialization of Tile 0 */
 void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
 {
 	gt->i915 = i915;
 	gt->uncore = &i915->uncore;
+
+	__intel_gt_init_early(gt);
 }
 
-int intel_gt_probe_lmem(struct intel_gt *gt)
+static int intel_gt_probe_lmem(struct intel_gt *gt)
 {
 	struct drm_i915_private *i915 = gt->i915;
+	unsigned int instance = gt->info.id;
 	struct intel_memory_region *mem;
 	int id;
 	int err;
 
+	id = INTEL_REGION_LMEM + instance;
+	if (drm_WARN_ON(&i915->drm, id >= INTEL_REGION_STOLEN_SMEM))
+		return -ENODEV;
+
 	mem = intel_gt_setup_lmem(gt);
 	if (mem == ERR_PTR(-ENODEV))
 		mem = intel_gt_setup_fake_lmem(gt);
@@ -74,9 +83,8 @@ int intel_gt_probe_lmem(struct intel_gt *gt)
 		return err;
 	}
 
-	id = INTEL_REGION_LMEM;
-
 	mem->id = id;
+	mem->instance = instance;
 
 	intel_memory_region_set_name(mem, "local%u", mem->instance);
 
@@ -791,16 +799,21 @@ void intel_gt_driver_release(struct intel_gt *gt)
 	intel_gt_fini_buffer_pool(gt);
 }
 
-void intel_gt_driver_late_release(struct intel_gt *gt)
+void intel_gt_driver_late_release(struct drm_i915_private *i915)
 {
+	struct intel_gt *gt;
+	unsigned int id;
+
 	/* We need to wait for inflight RCU frees to release their grip */
 	rcu_barrier();
 
-	intel_uc_driver_late_release(&gt->uc);
-	intel_gt_fini_requests(gt);
-	intel_gt_fini_reset(gt);
-	intel_gt_fini_timelines(gt);
-	intel_engines_free(gt);
+	for_each_gt(gt, i915, id) {
+		intel_uc_driver_late_release(&gt->uc);
+		intel_gt_fini_requests(gt);
+		intel_gt_fini_reset(gt);
+		intel_gt_fini_timelines(gt);
+		intel_engines_free(gt);
+	}
 }
 
 /**
@@ -909,6 +922,112 @@ u32 intel_gt_read_register_fw(struct intel_gt *gt, i915_reg_t reg)
 	return intel_uncore_read_fw(gt->uncore, reg);
 }
 
+static int
+intel_gt_tile_setup(struct intel_gt *gt, phys_addr_t phys_addr)
+{
+	struct drm_i915_private *i915 = gt->i915;
+	unsigned int id = gt->info.id;
+	int ret;
+
+	if (id) {
+		struct intel_uncore_mmio_debug *mmio_debug;
+		struct intel_uncore *uncore;
+
+		/* For multi-tile platforms BAR0 must have at least 16MB per tile */
+		if (GEM_WARN_ON(pci_resource_len(to_pci_dev(i915->drm.dev), 0) <
+				(id + 1) * SZ_16M))
+			return -EINVAL;
+
+		uncore = kzalloc(sizeof(*uncore), GFP_KERNEL);
+		if (!gt->uncore)
+			return -ENOMEM;
+
+		mmio_debug = kzalloc(sizeof(*mmio_debug), GFP_KERNEL);
+		if (!mmio_debug) {
+			kfree(uncore);
+			return -ENOMEM;
+		}
+
+		gt->uncore = uncore;
+		gt->uncore->debug = mmio_debug;
+
+		__intel_gt_init_early(gt);
+	}
+
+	intel_uncore_init_early(gt->uncore, gt);
+
+	ret = intel_uncore_setup_mmio(gt->uncore, phys_addr);
+	if (ret)
+		return ret;
+
+	gt->phys_addr = phys_addr;
+
+	return 0;
+}
+
+static void
+intel_gt_tile_cleanup(struct intel_gt *gt)
+{
+	intel_uncore_cleanup_mmio(gt->uncore);
+
+	if (gt->info.id) {
+		kfree(gt->uncore);
+		kfree(gt);
+	}
+}
+
+int intel_gt_probe_all(struct drm_i915_private *i915)
+{
+	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
+	struct intel_gt *gt = &i915->gt0;
+	phys_addr_t phys_addr;
+	unsigned int mmio_bar;
+	int ret;
+
+	mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0;
+	phys_addr = pci_resource_start(pdev, mmio_bar);
+
+	/*
+	 * We always have at least one primary GT on any device
+	 * and it has been already initialized early during probe
+	 * in i915_driver_probe()
+	 */
+	ret = intel_gt_tile_setup(gt, phys_addr);
+	if (ret)
+		return ret;
+
+	i915->gt[0] = gt;
+
+	/* TODO: add more tiles */
+	return 0;
+}
+
+int intel_gt_tiles_init(struct drm_i915_private *i915)
+{
+	struct intel_gt *gt;
+	unsigned int id;
+	int ret;
+
+	for_each_gt(gt, i915, id) {
+		ret = intel_gt_probe_lmem(gt);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+void intel_gt_release_all(struct drm_i915_private *i915)
+{
+	struct intel_gt *gt;
+	unsigned int id;
+
+	for_each_gt(gt, i915, id) {
+		intel_gt_tile_cleanup(gt);
+		i915->gt[id] = NULL;
+	}
+}
+
 void intel_gt_info_print(const struct intel_gt_info *info,
 			 struct drm_printer *p)
 {
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
index 94e1bac8c0cc..fcd10d88612a 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt.h
@@ -35,9 +35,7 @@ static inline struct intel_gt *huc_to_gt(struct intel_huc *huc)
 }
 
 void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915);
-void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915);
 int intel_gt_assign_ggtt(struct intel_gt *gt);
-int intel_gt_probe_lmem(struct intel_gt *gt);
 int intel_gt_init_mmio(struct intel_gt *gt);
 int __must_check intel_gt_init_hw(struct intel_gt *gt);
 int intel_gt_init(struct intel_gt *gt);
@@ -47,7 +45,7 @@ void intel_gt_driver_unregister(struct intel_gt *gt);
 void intel_gt_driver_remove(struct intel_gt *gt);
 void intel_gt_driver_release(struct intel_gt *gt);
 
-void intel_gt_driver_late_release(struct intel_gt *gt);
+void intel_gt_driver_late_release(struct drm_i915_private *i915);
 
 int intel_gt_wait_for_idle(struct intel_gt *gt, long timeout);
 
@@ -86,6 +84,16 @@ static inline bool intel_gt_needs_read_steering(struct intel_gt *gt,
 
 u32 intel_gt_read_register_fw(struct intel_gt *gt, i915_reg_t reg);
 
+int intel_gt_probe_all(struct drm_i915_private *i915);
+int intel_gt_tiles_init(struct drm_i915_private *i915);
+void intel_gt_release_all(struct drm_i915_private *i915);
+
+#define for_each_gt(gt__, i915__, id__) \
+	for ((id__) = 0; \
+	     (id__) < I915_MAX_GT; \
+	     (id__)++) \
+		for_each_if(((gt__) = (i915__)->gt[(id__)]))
+
 void intel_gt_info_print(const struct intel_gt_info *info,
 			 struct drm_printer *p);
 
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
index c0fa41e4c803..e66479d33bc3 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
@@ -128,7 +128,14 @@ static const struct intel_wakeref_ops wf_ops = {
 
 void intel_gt_pm_init_early(struct intel_gt *gt)
 {
-	intel_wakeref_init(&gt->wakeref, gt->uncore->rpm, &wf_ops);
+	/*
+	 * We access the runtime_pm structure via gt->i915 here rather than
+	 * gt->uncore as we do elsewhere in the file because gt->uncore is not
+	 * yet initialized for all tiles at this point in the driver startup.
+	 * runtime_pm is per-device rather than per-tile, so this is still the
+	 * correct structure.
+	 */
+	intel_wakeref_init(&gt->wakeref, &gt->i915->runtime_pm, &wf_ops);
 	seqcount_mutex_init(&gt->stats.lock, &gt->wakeref.mutex);
 }
 
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
index 14216cc471b1..7311e485faae 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
@@ -180,7 +180,14 @@ struct intel_gt {
 
 	const struct intel_mmio_range *steering_table[NUM_STEERING_TYPES];
 
+	/*
+	 * Base of per-tile GTTMMADR where we can derive the MMIO and the GGTT.
+	 */
+	phys_addr_t phys_addr;
+
 	struct intel_gt_info {
+		unsigned int id;
+
 		intel_engine_mask_t engine_mask;
 
 		u32 l3bank_mask;
diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
index 8bef67cb6c33..aa00965cd36c 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -316,9 +316,8 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
 	intel_device_info_subplatform_init(dev_priv);
 	intel_step_init(dev_priv);
 
-	intel_gt_init_early(to_gt(dev_priv), dev_priv);
+	/* All tiles share a single mmio_debug */
 	intel_uncore_mmio_debug_init_early(&dev_priv->mmio_debug);
-	intel_uncore_init_early(&dev_priv->uncore, to_gt(dev_priv));
 
 	spin_lock_init(&dev_priv->irq_lock);
 	spin_lock_init(&dev_priv->gpu_error.lock);
@@ -349,7 +348,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
 
 	intel_wopcm_init_early(&dev_priv->wopcm);
 
-	__intel_gt_init_early(to_gt(dev_priv), dev_priv);
+	intel_gt_init_early(to_gt(dev_priv), dev_priv);
 
 	i915_gem_init_early(dev_priv);
 
@@ -370,7 +369,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
 
 err_gem:
 	i915_gem_cleanup_early(dev_priv);
-	intel_gt_driver_late_release(to_gt(dev_priv));
+	intel_gt_driver_late_release(dev_priv);
 	intel_region_ttm_device_fini(dev_priv);
 err_ttm:
 	vlv_suspend_cleanup(dev_priv);
@@ -389,7 +388,7 @@ static void i915_driver_late_release(struct drm_i915_private *dev_priv)
 	intel_irq_fini(dev_priv);
 	intel_power_domains_cleanup(dev_priv);
 	i915_gem_cleanup_early(dev_priv);
-	intel_gt_driver_late_release(to_gt(dev_priv));
+	intel_gt_driver_late_release(dev_priv);
 	intel_region_ttm_device_fini(dev_priv);
 	vlv_suspend_cleanup(dev_priv);
 	i915_workqueues_cleanup(dev_priv);
@@ -420,13 +419,9 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv)
 	if (ret < 0)
 		return ret;
 
-	ret = intel_uncore_setup_mmio(&dev_priv->uncore);
-	if (ret < 0)
-		goto err_bridge;
-
 	ret = intel_uncore_init_mmio(&dev_priv->uncore);
 	if (ret)
-		goto err_mmio;
+		return ret;
 
 	/* Try to make sure MCHBAR is enabled before poking at it */
 	intel_setup_mchbar(dev_priv);
@@ -444,9 +439,6 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv)
 err_uncore:
 	intel_teardown_mchbar(dev_priv);
 	intel_uncore_fini_mmio(&dev_priv->uncore);
-err_mmio:
-	intel_uncore_cleanup_mmio(&dev_priv->uncore);
-err_bridge:
 	pci_dev_put(dev_priv->bridge_dev);
 
 	return ret;
@@ -460,7 +452,6 @@ static void i915_driver_mmio_release(struct drm_i915_private *dev_priv)
 {
 	intel_teardown_mchbar(dev_priv);
 	intel_uncore_fini_mmio(&dev_priv->uncore);
-	intel_uncore_cleanup_mmio(&dev_priv->uncore);
 	pci_dev_put(dev_priv->bridge_dev);
 }
 
@@ -593,7 +584,7 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
 	if (ret)
 		goto err_ggtt;
 
-	ret = intel_gt_probe_lmem(to_gt(dev_priv));
+	ret = intel_gt_tiles_init(dev_priv);
 	if (ret)
 		goto err_mem_regions;
 
@@ -858,10 +849,14 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	intel_vgpu_detect(i915);
 
-	ret = i915_driver_mmio_probe(i915);
+	ret = intel_gt_probe_all(i915);
 	if (ret < 0)
 		goto out_runtime_pm_put;
 
+	ret = i915_driver_mmio_probe(i915);
+	if (ret < 0)
+		goto out_tiles_cleanup;
+
 	ret = i915_driver_hw_probe(i915);
 	if (ret < 0)
 		goto out_cleanup_mmio;
@@ -918,6 +913,8 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	i915_ggtt_driver_late_release(i915);
 out_cleanup_mmio:
 	i915_driver_mmio_release(i915);
+out_tiles_cleanup:
+	intel_gt_release_all(i915);
 out_runtime_pm_put:
 	enable_rpm_wakeref_asserts(&i915->runtime_pm);
 	i915_driver_late_release(i915);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 6caec2eca8cd..14dbbc5ba9e4 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -991,6 +991,12 @@ struct drm_i915_private {
 	/* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
 	struct intel_gt gt0;
 
+	/*
+	 * i915->gt[0] == &i915->gt0
+	 */
+#define I915_MAX_GT 4
+	struct intel_gt *gt[I915_MAX_GT];
+
 	struct {
 		struct i915_gem_contexts {
 			spinlock_t lock; /* locks list */
diff --git a/drivers/gpu/drm/i915/intel_memory_region.h b/drivers/gpu/drm/i915/intel_memory_region.h
index 5625c9c38993..6a6324a08e72 100644
--- a/drivers/gpu/drm/i915/intel_memory_region.h
+++ b/drivers/gpu/drm/i915/intel_memory_region.h
@@ -30,6 +30,9 @@ enum intel_memory_type {
 enum intel_region_id {
 	INTEL_REGION_SMEM = 0,
 	INTEL_REGION_LMEM,
+	INTEL_REGION_LMEM1,
+	INTEL_REGION_LMEM2,
+	INTEL_REGION_LMEM3,
 	INTEL_REGION_STOLEN_SMEM,
 	INTEL_REGION_STOLEN_LMEM,
 	INTEL_REGION_UNKNOWN, /* Should be last */
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 41d082213e81..016639c1275d 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -2020,14 +2020,11 @@ static int i915_pmic_bus_access_notifier(struct notifier_block *nb,
 	return NOTIFY_OK;
 }
 
-int intel_uncore_setup_mmio(struct intel_uncore *uncore)
+int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr)
 {
 	struct drm_i915_private *i915 = uncore->i915;
-	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
-	int mmio_bar;
 	int mmio_size;
 
-	mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0;
 	/*
 	 * Before gen4, the registers and the GTT are behind different BARs.
 	 * However, from gen4 onwards, the registers and the GTT are shared
@@ -2044,7 +2041,7 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore)
 	else
 		mmio_size = 2 * 1024 * 1024;
 
-	uncore->regs = pci_iomap(pdev, mmio_bar, mmio_size);
+	uncore->regs = ioremap(phys_addr, mmio_size);
 	if (uncore->regs == NULL) {
 		drm_err(&i915->drm, "failed to map registers\n");
 		return -EIO;
@@ -2055,9 +2052,8 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore)
 
 void intel_uncore_cleanup_mmio(struct intel_uncore *uncore)
 {
-	struct pci_dev *pdev = to_pci_dev(uncore->i915->drm.dev);
-
-	pci_iounmap(pdev, uncore->regs);
+	if (uncore->regs)
+		iounmap(uncore->regs);
 }
 
 void intel_uncore_init_early(struct intel_uncore *uncore,
diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h
index 210fe2a71612..2989032b580b 100644
--- a/drivers/gpu/drm/i915/intel_uncore.h
+++ b/drivers/gpu/drm/i915/intel_uncore.h
@@ -29,6 +29,7 @@
 #include <linux/notifier.h>
 #include <linux/hrtimer.h>
 #include <linux/io-64-nonatomic-lo-hi.h>
+#include <linux/types.h>
 
 #include "i915_reg.h"
 
@@ -219,7 +220,7 @@ void
 intel_uncore_mmio_debug_init_early(struct intel_uncore_mmio_debug *mmio_debug);
 void intel_uncore_init_early(struct intel_uncore *uncore,
 			     struct intel_gt *gt);
-int intel_uncore_setup_mmio(struct intel_uncore *uncore);
+int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr);
 int intel_uncore_init_mmio(struct intel_uncore *uncore);
 void intel_uncore_prune_engine_fw_domains(struct intel_uncore *uncore,
 					  struct intel_gt *gt);
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 28a0f054009a..79520f217c90 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -73,7 +73,7 @@ static void mock_device_release(struct drm_device *dev)
 	destroy_workqueue(i915->wq);
 
 	intel_region_ttm_device_fini(i915);
-	intel_gt_driver_late_release(to_gt(i915));
+	intel_gt_driver_late_release(i915);
 	intel_memory_regions_driver_release(i915);
 
 	drm_mode_config_cleanup(&i915->drm);
@@ -179,7 +179,6 @@ struct drm_i915_private *mock_gem_device(void)
 
 	i915_gem_init__mm(i915);
 	intel_gt_init_early(to_gt(i915), i915);
-	__intel_gt_init_early(to_gt(i915), i915);
 	mock_uncore_init(&i915->uncore, i915);
 	atomic_inc(&to_gt(i915)->wakeref.count); /* disable; no hw support */
 	to_gt(i915)->awake = -ENODEV;
@@ -227,7 +226,7 @@ struct drm_i915_private *mock_gem_device(void)
 err_drv:
 	intel_region_ttm_device_fini(i915);
 err_ttm:
-	intel_gt_driver_late_release(to_gt(i915));
+	intel_gt_driver_late_release(i915);
 	intel_memory_regions_driver_release(i915);
 	drm_mode_config_cleanup(&i915->drm);
 	mock_destroy_device(i915);
-- 
2.34.1

Re: [PATCH v2 1/2] drm/i915: Prepare for multiple GTs

[Matt Roper]

On Thu, Jan 13, 2022 at 12:20:30AM +0200, Andi Shyti wrote:
> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> 
> On a multi-tile platform, each tile has its own registers + GGTT
> space, and BAR 0 is extended to cover all of them.
> 
> Up to four gts are supported in i915->gt[], with slot zero
> shadowing the existing i915->gt0 to enable source compatibility
> with legacy driver paths. A for_each_gt macro is added to iterate
> over the GTs and will be used by upcoming patches that convert
> various parts of the driver to be multi-gt aware.
> 
> Only the primary/root tile is initialized for now; the other
> tiles will be detected and plugged in by future patches once the
> necessary infrastructure is in place to handle them.
> 
> Signed-off-by: Abdiel Janulgue <abdiel.janulgue@gmail.com>
> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
> Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> Cc: Matthew Auld <matthew.auld@intel.com>
> ---
>  drivers/gpu/drm/i915/gt/intel_gt.c            | 139 ++++++++++++++++--
>  drivers/gpu/drm/i915/gt/intel_gt.h            |  14 +-
>  drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   9 +-
>  drivers/gpu/drm/i915/gt/intel_gt_types.h      |   7 +
>  drivers/gpu/drm/i915/i915_driver.c            |  29 ++--
>  drivers/gpu/drm/i915/i915_drv.h               |   6 +
>  drivers/gpu/drm/i915/intel_memory_region.h    |   3 +
>  drivers/gpu/drm/i915/intel_uncore.c           |  12 +-
>  drivers/gpu/drm/i915/intel_uncore.h           |   3 +-
>  .../gpu/drm/i915/selftests/mock_gem_device.c  |   5 +-
>  10 files changed, 185 insertions(+), 42 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
> index 622cdfed8a8b..17927da9e23e 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt.c
> +++ b/drivers/gpu/drm/i915/gt/intel_gt.c
> @@ -27,7 +27,8 @@
>  #include "shmem_utils.h"
>  #include "pxp/intel_pxp.h"
>  
> -void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
> +static void
> +__intel_gt_init_early(struct intel_gt *gt)
>  {
>  	spin_lock_init(&gt->irq_lock);
>  
> @@ -47,19 +48,27 @@ void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
>  	intel_rps_init_early(&gt->rps);
>  }
>  
> +/* Preliminary initialization of Tile 0 */
>  void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
>  {
>  	gt->i915 = i915;
>  	gt->uncore = &i915->uncore;
> +
> +	__intel_gt_init_early(gt);
>  }
>  
> -int intel_gt_probe_lmem(struct intel_gt *gt)
> +static int intel_gt_probe_lmem(struct intel_gt *gt)
>  {
>  	struct drm_i915_private *i915 = gt->i915;
> +	unsigned int instance = gt->info.id;
>  	struct intel_memory_region *mem;
>  	int id;
>  	int err;
>  
> +	id = INTEL_REGION_LMEM + instance;
> +	if (drm_WARN_ON(&i915->drm, id >= INTEL_REGION_STOLEN_SMEM))
> +		return -ENODEV;
> +
>  	mem = intel_gt_setup_lmem(gt);
>  	if (mem == ERR_PTR(-ENODEV))
>  		mem = intel_gt_setup_fake_lmem(gt);
> @@ -74,9 +83,8 @@ int intel_gt_probe_lmem(struct intel_gt *gt)
>  		return err;
>  	}
>  
> -	id = INTEL_REGION_LMEM;
> -
>  	mem->id = id;
> +	mem->instance = instance;
>  
>  	intel_memory_region_set_name(mem, "local%u", mem->instance);
>  
> @@ -791,16 +799,21 @@ void intel_gt_driver_release(struct intel_gt *gt)
>  	intel_gt_fini_buffer_pool(gt);
>  }
>  
> -void intel_gt_driver_late_release(struct intel_gt *gt)
> +void intel_gt_driver_late_release(struct drm_i915_private *i915)
>  {
> +	struct intel_gt *gt;
> +	unsigned int id;
> +
>  	/* We need to wait for inflight RCU frees to release their grip */
>  	rcu_barrier();
>  
> -	intel_uc_driver_late_release(&gt->uc);
> -	intel_gt_fini_requests(gt);
> -	intel_gt_fini_reset(gt);
> -	intel_gt_fini_timelines(gt);
> -	intel_engines_free(gt);
> +	for_each_gt(gt, i915, id) {
> +		intel_uc_driver_late_release(&gt->uc);
> +		intel_gt_fini_requests(gt);
> +		intel_gt_fini_reset(gt);
> +		intel_gt_fini_timelines(gt);
> +		intel_engines_free(gt);
> +	}
>  }
>  
>  /**
> @@ -909,6 +922,112 @@ u32 intel_gt_read_register_fw(struct intel_gt *gt, i915_reg_t reg)
>  	return intel_uncore_read_fw(gt->uncore, reg);
>  }
>  
> +static int
> +intel_gt_tile_setup(struct intel_gt *gt, phys_addr_t phys_addr)
> +{
> +	struct drm_i915_private *i915 = gt->i915;
> +	unsigned int id = gt->info.id;
> +	int ret;
> +
> +	if (id) {
> +		struct intel_uncore_mmio_debug *mmio_debug;
> +		struct intel_uncore *uncore;
> +
> +		/* For multi-tile platforms BAR0 must have at least 16MB per tile */
> +		if (GEM_WARN_ON(pci_resource_len(to_pci_dev(i915->drm.dev), 0) <
> +				(id + 1) * SZ_16M))
> +			return -EINVAL;
> +
> +		uncore = kzalloc(sizeof(*uncore), GFP_KERNEL);
> +		if (!gt->uncore)
> +			return -ENOMEM;
> +
> +		mmio_debug = kzalloc(sizeof(*mmio_debug), GFP_KERNEL);
> +		if (!mmio_debug) {
> +			kfree(uncore);
> +			return -ENOMEM;
> +		}
> +
> +		gt->uncore = uncore;
> +		gt->uncore->debug = mmio_debug;
> +
> +		__intel_gt_init_early(gt);
> +	}
> +
> +	intel_uncore_init_early(gt->uncore, gt);
> +
> +	ret = intel_uncore_setup_mmio(gt->uncore, phys_addr);
> +	if (ret)
> +		return ret;
> +
> +	gt->phys_addr = phys_addr;
> +
> +	return 0;
> +}
> +
> +static void
> +intel_gt_tile_cleanup(struct intel_gt *gt)
> +{
> +	intel_uncore_cleanup_mmio(gt->uncore);
> +
> +	if (gt->info.id) {
> +		kfree(gt->uncore);
> +		kfree(gt);
> +	}
> +}
> +
> +int intel_gt_probe_all(struct drm_i915_private *i915)
> +{
> +	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
> +	struct intel_gt *gt = &i915->gt0;
> +	phys_addr_t phys_addr;
> +	unsigned int mmio_bar;
> +	int ret;
> +
> +	mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0;
> +	phys_addr = pci_resource_start(pdev, mmio_bar);
> +
> +	/*
> +	 * We always have at least one primary GT on any device
> +	 * and it has been already initialized early during probe
> +	 * in i915_driver_probe()
> +	 */
> +	ret = intel_gt_tile_setup(gt, phys_addr);
> +	if (ret)
> +		return ret;
> +
> +	i915->gt[0] = gt;
> +
> +	/* TODO: add more tiles */
> +	return 0;
> +}
> +
> +int intel_gt_tiles_init(struct drm_i915_private *i915)
> +{
> +	struct intel_gt *gt;
> +	unsigned int id;
> +	int ret;
> +
> +	for_each_gt(gt, i915, id) {
> +		ret = intel_gt_probe_lmem(gt);
> +		if (ret)
> +			return ret;
> +	}
> +
> +	return 0;
> +}
> +
> +void intel_gt_release_all(struct drm_i915_private *i915)
> +{
> +	struct intel_gt *gt;
> +	unsigned int id;
> +
> +	for_each_gt(gt, i915, id) {
> +		intel_gt_tile_cleanup(gt);
> +		i915->gt[id] = NULL;
> +	}
> +}
> +
>  void intel_gt_info_print(const struct intel_gt_info *info,
>  			 struct drm_printer *p)
>  {
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
> index 94e1bac8c0cc..fcd10d88612a 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt.h
> +++ b/drivers/gpu/drm/i915/gt/intel_gt.h
> @@ -35,9 +35,7 @@ static inline struct intel_gt *huc_to_gt(struct intel_huc *huc)
>  }
>  
>  void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915);
> -void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915);
>  int intel_gt_assign_ggtt(struct intel_gt *gt);
> -int intel_gt_probe_lmem(struct intel_gt *gt);
>  int intel_gt_init_mmio(struct intel_gt *gt);
>  int __must_check intel_gt_init_hw(struct intel_gt *gt);
>  int intel_gt_init(struct intel_gt *gt);
> @@ -47,7 +45,7 @@ void intel_gt_driver_unregister(struct intel_gt *gt);
>  void intel_gt_driver_remove(struct intel_gt *gt);
>  void intel_gt_driver_release(struct intel_gt *gt);
>  
> -void intel_gt_driver_late_release(struct intel_gt *gt);
> +void intel_gt_driver_late_release(struct drm_i915_private *i915);
>  
>  int intel_gt_wait_for_idle(struct intel_gt *gt, long timeout);
>  
> @@ -86,6 +84,16 @@ static inline bool intel_gt_needs_read_steering(struct intel_gt *gt,
>  
>  u32 intel_gt_read_register_fw(struct intel_gt *gt, i915_reg_t reg);
>  
> +int intel_gt_probe_all(struct drm_i915_private *i915);
> +int intel_gt_tiles_init(struct drm_i915_private *i915);
> +void intel_gt_release_all(struct drm_i915_private *i915);
> +
> +#define for_each_gt(gt__, i915__, id__) \
> +	for ((id__) = 0; \
> +	     (id__) < I915_MAX_GT; \
> +	     (id__)++) \
> +		for_each_if(((gt__) = (i915__)->gt[(id__)]))
> +
>  void intel_gt_info_print(const struct intel_gt_info *info,
>  			 struct drm_printer *p);
>  
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
> index c0fa41e4c803..e66479d33bc3 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c
> +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
> @@ -128,7 +128,14 @@ static const struct intel_wakeref_ops wf_ops = {
>  
>  void intel_gt_pm_init_early(struct intel_gt *gt)
>  {
> -	intel_wakeref_init(&gt->wakeref, gt->uncore->rpm, &wf_ops);
> +	/*
> +	 * We access the runtime_pm structure via gt->i915 here rather than
> +	 * gt->uncore as we do elsewhere in the file because gt->uncore is not
> +	 * yet initialized for all tiles at this point in the driver startup.
> +	 * runtime_pm is per-device rather than per-tile, so this is still the
> +	 * correct structure.
> +	 */
> +	intel_wakeref_init(&gt->wakeref, &gt->i915->runtime_pm, &wf_ops);
>  	seqcount_mutex_init(&gt->stats.lock, &gt->wakeref.mutex);
>  }
>  
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
> index 14216cc471b1..7311e485faae 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
> +++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
> @@ -180,7 +180,14 @@ struct intel_gt {
>  
>  	const struct intel_mmio_range *steering_table[NUM_STEERING_TYPES];
>  
> +	/*
> +	 * Base of per-tile GTTMMADR where we can derive the MMIO and the GGTT.
> +	 */
> +	phys_addr_t phys_addr;
> +
>  	struct intel_gt_info {
> +		unsigned int id;
> +
>  		intel_engine_mask_t engine_mask;
>  
>  		u32 l3bank_mask;
> diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
> index 8bef67cb6c33..aa00965cd36c 100644
> --- a/drivers/gpu/drm/i915/i915_driver.c
> +++ b/drivers/gpu/drm/i915/i915_driver.c
> @@ -316,9 +316,8 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
>  	intel_device_info_subplatform_init(dev_priv);
>  	intel_step_init(dev_priv);
>  
> -	intel_gt_init_early(to_gt(dev_priv), dev_priv);
> +	/* All tiles share a single mmio_debug */
>  	intel_uncore_mmio_debug_init_early(&dev_priv->mmio_debug);
> -	intel_uncore_init_early(&dev_priv->uncore, to_gt(dev_priv));
>  
>  	spin_lock_init(&dev_priv->irq_lock);
>  	spin_lock_init(&dev_priv->gpu_error.lock);
> @@ -349,7 +348,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
>  
>  	intel_wopcm_init_early(&dev_priv->wopcm);
>  
> -	__intel_gt_init_early(to_gt(dev_priv), dev_priv);
> +	intel_gt_init_early(to_gt(dev_priv), dev_priv);
>  
>  	i915_gem_init_early(dev_priv);
>  
> @@ -370,7 +369,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
>  
>  err_gem:
>  	i915_gem_cleanup_early(dev_priv);
> -	intel_gt_driver_late_release(to_gt(dev_priv));
> +	intel_gt_driver_late_release(dev_priv);
>  	intel_region_ttm_device_fini(dev_priv);
>  err_ttm:
>  	vlv_suspend_cleanup(dev_priv);
> @@ -389,7 +388,7 @@ static void i915_driver_late_release(struct drm_i915_private *dev_priv)
>  	intel_irq_fini(dev_priv);
>  	intel_power_domains_cleanup(dev_priv);
>  	i915_gem_cleanup_early(dev_priv);
> -	intel_gt_driver_late_release(to_gt(dev_priv));
> +	intel_gt_driver_late_release(dev_priv);
>  	intel_region_ttm_device_fini(dev_priv);
>  	vlv_suspend_cleanup(dev_priv);
>  	i915_workqueues_cleanup(dev_priv);
> @@ -420,13 +419,9 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv)
>  	if (ret < 0)
>  		return ret;
>  
> -	ret = intel_uncore_setup_mmio(&dev_priv->uncore);
> -	if (ret < 0)
> -		goto err_bridge;
> -
>  	ret = intel_uncore_init_mmio(&dev_priv->uncore);
>  	if (ret)
> -		goto err_mmio;
> +		return ret;
>  
>  	/* Try to make sure MCHBAR is enabled before poking at it */
>  	intel_setup_mchbar(dev_priv);
> @@ -444,9 +439,6 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv)
>  err_uncore:
>  	intel_teardown_mchbar(dev_priv);
>  	intel_uncore_fini_mmio(&dev_priv->uncore);
> -err_mmio:
> -	intel_uncore_cleanup_mmio(&dev_priv->uncore);
> -err_bridge:
>  	pci_dev_put(dev_priv->bridge_dev);
>  
>  	return ret;
> @@ -460,7 +452,6 @@ static void i915_driver_mmio_release(struct drm_i915_private *dev_priv)
>  {
>  	intel_teardown_mchbar(dev_priv);
>  	intel_uncore_fini_mmio(&dev_priv->uncore);
> -	intel_uncore_cleanup_mmio(&dev_priv->uncore);
>  	pci_dev_put(dev_priv->bridge_dev);
>  }
>  
> @@ -593,7 +584,7 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
>  	if (ret)
>  		goto err_ggtt;
>  
> -	ret = intel_gt_probe_lmem(to_gt(dev_priv));
> +	ret = intel_gt_tiles_init(dev_priv);
>  	if (ret)
>  		goto err_mem_regions;
>  
> @@ -858,10 +849,14 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>  
>  	intel_vgpu_detect(i915);
>  
> -	ret = i915_driver_mmio_probe(i915);
> +	ret = intel_gt_probe_all(i915);
>  	if (ret < 0)
>  		goto out_runtime_pm_put;
>  
> +	ret = i915_driver_mmio_probe(i915);
> +	if (ret < 0)
> +		goto out_tiles_cleanup;
> +
>  	ret = i915_driver_hw_probe(i915);
>  	if (ret < 0)
>  		goto out_cleanup_mmio;
> @@ -918,6 +913,8 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>  	i915_ggtt_driver_late_release(i915);
>  out_cleanup_mmio:
>  	i915_driver_mmio_release(i915);
> +out_tiles_cleanup:
> +	intel_gt_release_all(i915);
>  out_runtime_pm_put:
>  	enable_rpm_wakeref_asserts(&i915->runtime_pm);
>  	i915_driver_late_release(i915);
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 6caec2eca8cd..14dbbc5ba9e4 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -991,6 +991,12 @@ struct drm_i915_private {
>  	/* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
>  	struct intel_gt gt0;
>  
> +	/*
> +	 * i915->gt[0] == &i915->gt0
> +	 */
> +#define I915_MAX_GT 4
> +	struct intel_gt *gt[I915_MAX_GT];
> +
>  	struct {
>  		struct i915_gem_contexts {
>  			spinlock_t lock; /* locks list */
> diff --git a/drivers/gpu/drm/i915/intel_memory_region.h b/drivers/gpu/drm/i915/intel_memory_region.h
> index 5625c9c38993..6a6324a08e72 100644
> --- a/drivers/gpu/drm/i915/intel_memory_region.h
> +++ b/drivers/gpu/drm/i915/intel_memory_region.h
> @@ -30,6 +30,9 @@ enum intel_memory_type {
>  enum intel_region_id {
>  	INTEL_REGION_SMEM = 0,
>  	INTEL_REGION_LMEM,
> +	INTEL_REGION_LMEM1,
> +	INTEL_REGION_LMEM2,
> +	INTEL_REGION_LMEM3,
>  	INTEL_REGION_STOLEN_SMEM,
>  	INTEL_REGION_STOLEN_LMEM,
>  	INTEL_REGION_UNKNOWN, /* Should be last */
> diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
> index 41d082213e81..016639c1275d 100644
> --- a/drivers/gpu/drm/i915/intel_uncore.c
> +++ b/drivers/gpu/drm/i915/intel_uncore.c
> @@ -2020,14 +2020,11 @@ static int i915_pmic_bus_access_notifier(struct notifier_block *nb,
>  	return NOTIFY_OK;
>  }
>  
> -int intel_uncore_setup_mmio(struct intel_uncore *uncore)
> +int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr)
>  {
>  	struct drm_i915_private *i915 = uncore->i915;
> -	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
> -	int mmio_bar;
>  	int mmio_size;
>  
> -	mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0;
>  	/*
>  	 * Before gen4, the registers and the GTT are behind different BARs.
>  	 * However, from gen4 onwards, the registers and the GTT are shared
> @@ -2044,7 +2041,7 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore)
>  	else
>  		mmio_size = 2 * 1024 * 1024;
>  
> -	uncore->regs = pci_iomap(pdev, mmio_bar, mmio_size);
> +	uncore->regs = ioremap(phys_addr, mmio_size);

Is there a specific reason we switch to ioremap() instead of
pci_iomap_range()?  I.e., we could pass 'phys_offset' rather than
'phys_addr' and call

        pci_iomap_range(pdev, mmio_bar, phys_offset, mmio_size);

Not that it really matters too much either way as far as I can see;
ioremap()/iounmap() should work fine too.


Reviewed-by: Matt Roper <matthew.d.roper@intel.com>

>  	if (uncore->regs == NULL) {
>  		drm_err(&i915->drm, "failed to map registers\n");
>  		return -EIO;
> @@ -2055,9 +2052,8 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore)
>  
>  void intel_uncore_cleanup_mmio(struct intel_uncore *uncore)
>  {
> -	struct pci_dev *pdev = to_pci_dev(uncore->i915->drm.dev);
> -
> -	pci_iounmap(pdev, uncore->regs);
> +	if (uncore->regs)
> +		iounmap(uncore->regs);
>  }
>  
>  void intel_uncore_init_early(struct intel_uncore *uncore,
> diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h
> index 210fe2a71612..2989032b580b 100644
> --- a/drivers/gpu/drm/i915/intel_uncore.h
> +++ b/drivers/gpu/drm/i915/intel_uncore.h
> @@ -29,6 +29,7 @@
>  #include <linux/notifier.h>
>  #include <linux/hrtimer.h>
>  #include <linux/io-64-nonatomic-lo-hi.h>
> +#include <linux/types.h>
>  
>  #include "i915_reg.h"
>  
> @@ -219,7 +220,7 @@ void
>  intel_uncore_mmio_debug_init_early(struct intel_uncore_mmio_debug *mmio_debug);
>  void intel_uncore_init_early(struct intel_uncore *uncore,
>  			     struct intel_gt *gt);
> -int intel_uncore_setup_mmio(struct intel_uncore *uncore);
> +int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr);
>  int intel_uncore_init_mmio(struct intel_uncore *uncore);
>  void intel_uncore_prune_engine_fw_domains(struct intel_uncore *uncore,
>  					  struct intel_gt *gt);
> diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
> index 28a0f054009a..79520f217c90 100644
> --- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
> +++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
> @@ -73,7 +73,7 @@ static void mock_device_release(struct drm_device *dev)
>  	destroy_workqueue(i915->wq);
>  
>  	intel_region_ttm_device_fini(i915);
> -	intel_gt_driver_late_release(to_gt(i915));
> +	intel_gt_driver_late_release(i915);
>  	intel_memory_regions_driver_release(i915);
>  
>  	drm_mode_config_cleanup(&i915->drm);
> @@ -179,7 +179,6 @@ struct drm_i915_private *mock_gem_device(void)
>  
>  	i915_gem_init__mm(i915);
>  	intel_gt_init_early(to_gt(i915), i915);
> -	__intel_gt_init_early(to_gt(i915), i915);
>  	mock_uncore_init(&i915->uncore, i915);
>  	atomic_inc(&to_gt(i915)->wakeref.count); /* disable; no hw support */
>  	to_gt(i915)->awake = -ENODEV;
> @@ -227,7 +226,7 @@ struct drm_i915_private *mock_gem_device(void)
>  err_drv:
>  	intel_region_ttm_device_fini(i915);
>  err_ttm:
> -	intel_gt_driver_late_release(to_gt(i915));
> +	intel_gt_driver_late_release(i915);
>  	intel_memory_regions_driver_release(i915);
>  	drm_mode_config_cleanup(&i915->drm);
>  	mock_destroy_device(i915);
> -- 
> 2.34.1
> 

-- 
Matt Roper
Graphics Software Engineer
VTT-OSGC Platform Enablement
Intel Corporation
(916) 356-2795

Re: [Intel-gfx] [PATCH v2 1/2] drm/i915: Prepare for multiple GTs

[Matt Roper]

On Thu, Jan 13, 2022 at 12:20:30AM +0200, Andi Shyti wrote:
> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> 
> On a multi-tile platform, each tile has its own registers + GGTT
> space, and BAR 0 is extended to cover all of them.
> 
> Up to four gts are supported in i915->gt[], with slot zero
> shadowing the existing i915->gt0 to enable source compatibility
> with legacy driver paths. A for_each_gt macro is added to iterate
> over the GTs and will be used by upcoming patches that convert
> various parts of the driver to be multi-gt aware.
> 
> Only the primary/root tile is initialized for now; the other
> tiles will be detected and plugged in by future patches once the
> necessary infrastructure is in place to handle them.
> 
> Signed-off-by: Abdiel Janulgue <abdiel.janulgue@gmail.com>
> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
> Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> Cc: Matthew Auld <matthew.auld@intel.com>
> ---
>  drivers/gpu/drm/i915/gt/intel_gt.c            | 139 ++++++++++++++++--
>  drivers/gpu/drm/i915/gt/intel_gt.h            |  14 +-
>  drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   9 +-
>  drivers/gpu/drm/i915/gt/intel_gt_types.h      |   7 +
>  drivers/gpu/drm/i915/i915_driver.c            |  29 ++--
>  drivers/gpu/drm/i915/i915_drv.h               |   6 +
>  drivers/gpu/drm/i915/intel_memory_region.h    |   3 +
>  drivers/gpu/drm/i915/intel_uncore.c           |  12 +-
>  drivers/gpu/drm/i915/intel_uncore.h           |   3 +-
>  .../gpu/drm/i915/selftests/mock_gem_device.c  |   5 +-
>  10 files changed, 185 insertions(+), 42 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
> index 622cdfed8a8b..17927da9e23e 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt.c
> +++ b/drivers/gpu/drm/i915/gt/intel_gt.c
> @@ -27,7 +27,8 @@
>  #include "shmem_utils.h"
>  #include "pxp/intel_pxp.h"
>  
> -void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
> +static void
> +__intel_gt_init_early(struct intel_gt *gt)
>  {
>  	spin_lock_init(&gt->irq_lock);
>  
> @@ -47,19 +48,27 @@ void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
>  	intel_rps_init_early(&gt->rps);
>  }
>  
> +/* Preliminary initialization of Tile 0 */
>  void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
>  {
>  	gt->i915 = i915;
>  	gt->uncore = &i915->uncore;
> +
> +	__intel_gt_init_early(gt);
>  }
>  
> -int intel_gt_probe_lmem(struct intel_gt *gt)
> +static int intel_gt_probe_lmem(struct intel_gt *gt)
>  {
>  	struct drm_i915_private *i915 = gt->i915;
> +	unsigned int instance = gt->info.id;
>  	struct intel_memory_region *mem;
>  	int id;
>  	int err;
>  
> +	id = INTEL_REGION_LMEM + instance;
> +	if (drm_WARN_ON(&i915->drm, id >= INTEL_REGION_STOLEN_SMEM))
> +		return -ENODEV;
> +
>  	mem = intel_gt_setup_lmem(gt);
>  	if (mem == ERR_PTR(-ENODEV))
>  		mem = intel_gt_setup_fake_lmem(gt);
> @@ -74,9 +83,8 @@ int intel_gt_probe_lmem(struct intel_gt *gt)
>  		return err;
>  	}
>  
> -	id = INTEL_REGION_LMEM;
> -
>  	mem->id = id;
> +	mem->instance = instance;
>  
>  	intel_memory_region_set_name(mem, "local%u", mem->instance);
>  
> @@ -791,16 +799,21 @@ void intel_gt_driver_release(struct intel_gt *gt)
>  	intel_gt_fini_buffer_pool(gt);
>  }
>  
> -void intel_gt_driver_late_release(struct intel_gt *gt)
> +void intel_gt_driver_late_release(struct drm_i915_private *i915)
>  {
> +	struct intel_gt *gt;
> +	unsigned int id;
> +
>  	/* We need to wait for inflight RCU frees to release their grip */
>  	rcu_barrier();
>  
> -	intel_uc_driver_late_release(&gt->uc);
> -	intel_gt_fini_requests(gt);
> -	intel_gt_fini_reset(gt);
> -	intel_gt_fini_timelines(gt);
> -	intel_engines_free(gt);
> +	for_each_gt(gt, i915, id) {
> +		intel_uc_driver_late_release(&gt->uc);
> +		intel_gt_fini_requests(gt);
> +		intel_gt_fini_reset(gt);
> +		intel_gt_fini_timelines(gt);
> +		intel_engines_free(gt);
> +	}
>  }
>  
>  /**
> @@ -909,6 +922,112 @@ u32 intel_gt_read_register_fw(struct intel_gt *gt, i915_reg_t reg)
>  	return intel_uncore_read_fw(gt->uncore, reg);
>  }
>  
> +static int
> +intel_gt_tile_setup(struct intel_gt *gt, phys_addr_t phys_addr)
> +{
> +	struct drm_i915_private *i915 = gt->i915;
> +	unsigned int id = gt->info.id;
> +	int ret;
> +
> +	if (id) {
> +		struct intel_uncore_mmio_debug *mmio_debug;
> +		struct intel_uncore *uncore;
> +
> +		/* For multi-tile platforms BAR0 must have at least 16MB per tile */
> +		if (GEM_WARN_ON(pci_resource_len(to_pci_dev(i915->drm.dev), 0) <
> +				(id + 1) * SZ_16M))
> +			return -EINVAL;
> +
> +		uncore = kzalloc(sizeof(*uncore), GFP_KERNEL);
> +		if (!gt->uncore)
> +			return -ENOMEM;
> +
> +		mmio_debug = kzalloc(sizeof(*mmio_debug), GFP_KERNEL);
> +		if (!mmio_debug) {
> +			kfree(uncore);
> +			return -ENOMEM;
> +		}
> +
> +		gt->uncore = uncore;
> +		gt->uncore->debug = mmio_debug;
> +
> +		__intel_gt_init_early(gt);
> +	}
> +
> +	intel_uncore_init_early(gt->uncore, gt);
> +
> +	ret = intel_uncore_setup_mmio(gt->uncore, phys_addr);
> +	if (ret)
> +		return ret;
> +
> +	gt->phys_addr = phys_addr;
> +
> +	return 0;
> +}
> +
> +static void
> +intel_gt_tile_cleanup(struct intel_gt *gt)
> +{
> +	intel_uncore_cleanup_mmio(gt->uncore);
> +
> +	if (gt->info.id) {
> +		kfree(gt->uncore);
> +		kfree(gt);
> +	}
> +}
> +
> +int intel_gt_probe_all(struct drm_i915_private *i915)
> +{
> +	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
> +	struct intel_gt *gt = &i915->gt0;
> +	phys_addr_t phys_addr;
> +	unsigned int mmio_bar;
> +	int ret;
> +
> +	mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0;
> +	phys_addr = pci_resource_start(pdev, mmio_bar);
> +
> +	/*
> +	 * We always have at least one primary GT on any device
> +	 * and it has been already initialized early during probe
> +	 * in i915_driver_probe()
> +	 */
> +	ret = intel_gt_tile_setup(gt, phys_addr);
> +	if (ret)
> +		return ret;
> +
> +	i915->gt[0] = gt;
> +
> +	/* TODO: add more tiles */
> +	return 0;
> +}
> +
> +int intel_gt_tiles_init(struct drm_i915_private *i915)
> +{
> +	struct intel_gt *gt;
> +	unsigned int id;
> +	int ret;
> +
> +	for_each_gt(gt, i915, id) {
> +		ret = intel_gt_probe_lmem(gt);
> +		if (ret)
> +			return ret;
> +	}
> +
> +	return 0;
> +}
> +
> +void intel_gt_release_all(struct drm_i915_private *i915)
> +{
> +	struct intel_gt *gt;
> +	unsigned int id;
> +
> +	for_each_gt(gt, i915, id) {
> +		intel_gt_tile_cleanup(gt);
> +		i915->gt[id] = NULL;
> +	}
> +}
> +
>  void intel_gt_info_print(const struct intel_gt_info *info,
>  			 struct drm_printer *p)
>  {
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
> index 94e1bac8c0cc..fcd10d88612a 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt.h
> +++ b/drivers/gpu/drm/i915/gt/intel_gt.h
> @@ -35,9 +35,7 @@ static inline struct intel_gt *huc_to_gt(struct intel_huc *huc)
>  }
>  
>  void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915);
> -void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915);
>  int intel_gt_assign_ggtt(struct intel_gt *gt);
> -int intel_gt_probe_lmem(struct intel_gt *gt);
>  int intel_gt_init_mmio(struct intel_gt *gt);
>  int __must_check intel_gt_init_hw(struct intel_gt *gt);
>  int intel_gt_init(struct intel_gt *gt);
> @@ -47,7 +45,7 @@ void intel_gt_driver_unregister(struct intel_gt *gt);
>  void intel_gt_driver_remove(struct intel_gt *gt);
>  void intel_gt_driver_release(struct intel_gt *gt);
>  
> -void intel_gt_driver_late_release(struct intel_gt *gt);
> +void intel_gt_driver_late_release(struct drm_i915_private *i915);
>  
>  int intel_gt_wait_for_idle(struct intel_gt *gt, long timeout);
>  
> @@ -86,6 +84,16 @@ static inline bool intel_gt_needs_read_steering(struct intel_gt *gt,
>  
>  u32 intel_gt_read_register_fw(struct intel_gt *gt, i915_reg_t reg);
>  
> +int intel_gt_probe_all(struct drm_i915_private *i915);
> +int intel_gt_tiles_init(struct drm_i915_private *i915);
> +void intel_gt_release_all(struct drm_i915_private *i915);
> +
> +#define for_each_gt(gt__, i915__, id__) \
> +	for ((id__) = 0; \
> +	     (id__) < I915_MAX_GT; \
> +	     (id__)++) \
> +		for_each_if(((gt__) = (i915__)->gt[(id__)]))
> +
>  void intel_gt_info_print(const struct intel_gt_info *info,
>  			 struct drm_printer *p);
>  
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
> index c0fa41e4c803..e66479d33bc3 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c
> +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
> @@ -128,7 +128,14 @@ static const struct intel_wakeref_ops wf_ops = {
>  
>  void intel_gt_pm_init_early(struct intel_gt *gt)
>  {
> -	intel_wakeref_init(&gt->wakeref, gt->uncore->rpm, &wf_ops);
> +	/*
> +	 * We access the runtime_pm structure via gt->i915 here rather than
> +	 * gt->uncore as we do elsewhere in the file because gt->uncore is not
> +	 * yet initialized for all tiles at this point in the driver startup.
> +	 * runtime_pm is per-device rather than per-tile, so this is still the
> +	 * correct structure.
> +	 */
> +	intel_wakeref_init(&gt->wakeref, &gt->i915->runtime_pm, &wf_ops);
>  	seqcount_mutex_init(&gt->stats.lock, &gt->wakeref.mutex);
>  }
>  
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
> index 14216cc471b1..7311e485faae 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
> +++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
> @@ -180,7 +180,14 @@ struct intel_gt {
>  
>  	const struct intel_mmio_range *steering_table[NUM_STEERING_TYPES];
>  
> +	/*
> +	 * Base of per-tile GTTMMADR where we can derive the MMIO and the GGTT.
> +	 */
> +	phys_addr_t phys_addr;
> +
>  	struct intel_gt_info {
> +		unsigned int id;
> +
>  		intel_engine_mask_t engine_mask;
>  
>  		u32 l3bank_mask;
> diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
> index 8bef67cb6c33..aa00965cd36c 100644
> --- a/drivers/gpu/drm/i915/i915_driver.c
> +++ b/drivers/gpu/drm/i915/i915_driver.c
> @@ -316,9 +316,8 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
>  	intel_device_info_subplatform_init(dev_priv);
>  	intel_step_init(dev_priv);
>  
> -	intel_gt_init_early(to_gt(dev_priv), dev_priv);
> +	/* All tiles share a single mmio_debug */
>  	intel_uncore_mmio_debug_init_early(&dev_priv->mmio_debug);
> -	intel_uncore_init_early(&dev_priv->uncore, to_gt(dev_priv));
>  
>  	spin_lock_init(&dev_priv->irq_lock);
>  	spin_lock_init(&dev_priv->gpu_error.lock);
> @@ -349,7 +348,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
>  
>  	intel_wopcm_init_early(&dev_priv->wopcm);
>  
> -	__intel_gt_init_early(to_gt(dev_priv), dev_priv);
> +	intel_gt_init_early(to_gt(dev_priv), dev_priv);
>  
>  	i915_gem_init_early(dev_priv);
>  
> @@ -370,7 +369,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
>  
>  err_gem:
>  	i915_gem_cleanup_early(dev_priv);
> -	intel_gt_driver_late_release(to_gt(dev_priv));
> +	intel_gt_driver_late_release(dev_priv);
>  	intel_region_ttm_device_fini(dev_priv);
>  err_ttm:
>  	vlv_suspend_cleanup(dev_priv);
> @@ -389,7 +388,7 @@ static void i915_driver_late_release(struct drm_i915_private *dev_priv)
>  	intel_irq_fini(dev_priv);
>  	intel_power_domains_cleanup(dev_priv);
>  	i915_gem_cleanup_early(dev_priv);
> -	intel_gt_driver_late_release(to_gt(dev_priv));
> +	intel_gt_driver_late_release(dev_priv);
>  	intel_region_ttm_device_fini(dev_priv);
>  	vlv_suspend_cleanup(dev_priv);
>  	i915_workqueues_cleanup(dev_priv);
> @@ -420,13 +419,9 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv)
>  	if (ret < 0)
>  		return ret;
>  
> -	ret = intel_uncore_setup_mmio(&dev_priv->uncore);
> -	if (ret < 0)
> -		goto err_bridge;
> -
>  	ret = intel_uncore_init_mmio(&dev_priv->uncore);
>  	if (ret)
> -		goto err_mmio;
> +		return ret;
>  
>  	/* Try to make sure MCHBAR is enabled before poking at it */
>  	intel_setup_mchbar(dev_priv);
> @@ -444,9 +439,6 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv)
>  err_uncore:
>  	intel_teardown_mchbar(dev_priv);
>  	intel_uncore_fini_mmio(&dev_priv->uncore);
> -err_mmio:
> -	intel_uncore_cleanup_mmio(&dev_priv->uncore);
> -err_bridge:
>  	pci_dev_put(dev_priv->bridge_dev);
>  
>  	return ret;
> @@ -460,7 +452,6 @@ static void i915_driver_mmio_release(struct drm_i915_private *dev_priv)
>  {
>  	intel_teardown_mchbar(dev_priv);
>  	intel_uncore_fini_mmio(&dev_priv->uncore);
> -	intel_uncore_cleanup_mmio(&dev_priv->uncore);
>  	pci_dev_put(dev_priv->bridge_dev);
>  }
>  
> @@ -593,7 +584,7 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
>  	if (ret)
>  		goto err_ggtt;
>  
> -	ret = intel_gt_probe_lmem(to_gt(dev_priv));
> +	ret = intel_gt_tiles_init(dev_priv);
>  	if (ret)
>  		goto err_mem_regions;
>  
> @@ -858,10 +849,14 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>  
>  	intel_vgpu_detect(i915);
>  
> -	ret = i915_driver_mmio_probe(i915);
> +	ret = intel_gt_probe_all(i915);
>  	if (ret < 0)
>  		goto out_runtime_pm_put;
>  
> +	ret = i915_driver_mmio_probe(i915);
> +	if (ret < 0)
> +		goto out_tiles_cleanup;
> +
>  	ret = i915_driver_hw_probe(i915);
>  	if (ret < 0)
>  		goto out_cleanup_mmio;
> @@ -918,6 +913,8 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>  	i915_ggtt_driver_late_release(i915);
>  out_cleanup_mmio:
>  	i915_driver_mmio_release(i915);
> +out_tiles_cleanup:
> +	intel_gt_release_all(i915);
>  out_runtime_pm_put:
>  	enable_rpm_wakeref_asserts(&i915->runtime_pm);
>  	i915_driver_late_release(i915);
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 6caec2eca8cd..14dbbc5ba9e4 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -991,6 +991,12 @@ struct drm_i915_private {
>  	/* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
>  	struct intel_gt gt0;
>  
> +	/*
> +	 * i915->gt[0] == &i915->gt0
> +	 */
> +#define I915_MAX_GT 4
> +	struct intel_gt *gt[I915_MAX_GT];
> +
>  	struct {
>  		struct i915_gem_contexts {
>  			spinlock_t lock; /* locks list */
> diff --git a/drivers/gpu/drm/i915/intel_memory_region.h b/drivers/gpu/drm/i915/intel_memory_region.h
> index 5625c9c38993..6a6324a08e72 100644
> --- a/drivers/gpu/drm/i915/intel_memory_region.h
> +++ b/drivers/gpu/drm/i915/intel_memory_region.h
> @@ -30,6 +30,9 @@ enum intel_memory_type {
>  enum intel_region_id {
>  	INTEL_REGION_SMEM = 0,
>  	INTEL_REGION_LMEM,
> +	INTEL_REGION_LMEM1,
> +	INTEL_REGION_LMEM2,
> +	INTEL_REGION_LMEM3,
>  	INTEL_REGION_STOLEN_SMEM,
>  	INTEL_REGION_STOLEN_LMEM,
>  	INTEL_REGION_UNKNOWN, /* Should be last */
> diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
> index 41d082213e81..016639c1275d 100644
> --- a/drivers/gpu/drm/i915/intel_uncore.c
> +++ b/drivers/gpu/drm/i915/intel_uncore.c
> @@ -2020,14 +2020,11 @@ static int i915_pmic_bus_access_notifier(struct notifier_block *nb,
>  	return NOTIFY_OK;
>  }
>  
> -int intel_uncore_setup_mmio(struct intel_uncore *uncore)
> +int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr)
>  {
>  	struct drm_i915_private *i915 = uncore->i915;
> -	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
> -	int mmio_bar;
>  	int mmio_size;
>  
> -	mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0;
>  	/*
>  	 * Before gen4, the registers and the GTT are behind different BARs.
>  	 * However, from gen4 onwards, the registers and the GTT are shared
> @@ -2044,7 +2041,7 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore)
>  	else
>  		mmio_size = 2 * 1024 * 1024;
>  
> -	uncore->regs = pci_iomap(pdev, mmio_bar, mmio_size);
> +	uncore->regs = ioremap(phys_addr, mmio_size);

Is there a specific reason we switch to ioremap() instead of
pci_iomap_range()?  I.e., we could pass 'phys_offset' rather than
'phys_addr' and call

        pci_iomap_range(pdev, mmio_bar, phys_offset, mmio_size);

Not that it really matters too much either way as far as I can see;
ioremap()/iounmap() should work fine too.


Reviewed-by: Matt Roper <matthew.d.roper@intel.com>

>  	if (uncore->regs == NULL) {
>  		drm_err(&i915->drm, "failed to map registers\n");
>  		return -EIO;
> @@ -2055,9 +2052,8 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore)
>  
>  void intel_uncore_cleanup_mmio(struct intel_uncore *uncore)
>  {
> -	struct pci_dev *pdev = to_pci_dev(uncore->i915->drm.dev);
> -
> -	pci_iounmap(pdev, uncore->regs);
> +	if (uncore->regs)
> +		iounmap(uncore->regs);
>  }
>  
>  void intel_uncore_init_early(struct intel_uncore *uncore,
> diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h
> index 210fe2a71612..2989032b580b 100644
> --- a/drivers/gpu/drm/i915/intel_uncore.h
> +++ b/drivers/gpu/drm/i915/intel_uncore.h
> @@ -29,6 +29,7 @@
>  #include <linux/notifier.h>
>  #include <linux/hrtimer.h>
>  #include <linux/io-64-nonatomic-lo-hi.h>
> +#include <linux/types.h>
>  
>  #include "i915_reg.h"
>  
> @@ -219,7 +220,7 @@ void
>  intel_uncore_mmio_debug_init_early(struct intel_uncore_mmio_debug *mmio_debug);
>  void intel_uncore_init_early(struct intel_uncore *uncore,
>  			     struct intel_gt *gt);
> -int intel_uncore_setup_mmio(struct intel_uncore *uncore);
> +int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr);
>  int intel_uncore_init_mmio(struct intel_uncore *uncore);
>  void intel_uncore_prune_engine_fw_domains(struct intel_uncore *uncore,
>  					  struct intel_gt *gt);
> diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
> index 28a0f054009a..79520f217c90 100644
> --- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
> +++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
> @@ -73,7 +73,7 @@ static void mock_device_release(struct drm_device *dev)
>  	destroy_workqueue(i915->wq);
>  
>  	intel_region_ttm_device_fini(i915);
> -	intel_gt_driver_late_release(to_gt(i915));
> +	intel_gt_driver_late_release(i915);
>  	intel_memory_regions_driver_release(i915);
>  
>  	drm_mode_config_cleanup(&i915->drm);
> @@ -179,7 +179,6 @@ struct drm_i915_private *mock_gem_device(void)
>  
>  	i915_gem_init__mm(i915);
>  	intel_gt_init_early(to_gt(i915), i915);
> -	__intel_gt_init_early(to_gt(i915), i915);
>  	mock_uncore_init(&i915->uncore, i915);
>  	atomic_inc(&to_gt(i915)->wakeref.count); /* disable; no hw support */
>  	to_gt(i915)->awake = -ENODEV;
> @@ -227,7 +226,7 @@ struct drm_i915_private *mock_gem_device(void)
>  err_drv:
>  	intel_region_ttm_device_fini(i915);
>  err_ttm:
> -	intel_gt_driver_late_release(to_gt(i915));
> +	intel_gt_driver_late_release(i915);
>  	intel_memory_regions_driver_release(i915);
>  	drm_mode_config_cleanup(&i915->drm);
>  	mock_destroy_device(i915);
> -- 
> 2.34.1
> 

-- 
Matt Roper
Graphics Software Engineer
VTT-OSGC Platform Enablement
Intel Corporation
(916) 356-2795

Re: [PATCH v2 1/2] drm/i915: Prepare for multiple GTs

[Andi Shyti]

Hi Matt,

[...]

> > -int intel_uncore_setup_mmio(struct intel_uncore *uncore)
> > +int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr)
> >  {
> >  	struct drm_i915_private *i915 = uncore->i915;
> > -	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
> > -	int mmio_bar;
> >  	int mmio_size;
> >  
> > -	mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0;
> >  	/*
> >  	 * Before gen4, the registers and the GTT are behind different BARs.
> >  	 * However, from gen4 onwards, the registers and the GTT are shared
> > @@ -2044,7 +2041,7 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore)
> >  	else
> >  		mmio_size = 2 * 1024 * 1024;
> >  
> > -	uncore->regs = pci_iomap(pdev, mmio_bar, mmio_size);
> > +	uncore->regs = ioremap(phys_addr, mmio_size);
> 
> Is there a specific reason we switch to ioremap() instead of
> pci_iomap_range()?  I.e., we could pass 'phys_offset' rather than
> 'phys_addr' and call
> 
>         pci_iomap_range(pdev, mmio_bar, phys_offset, mmio_size);
> 
> Not that it really matters too much either way as far as I can see;
> ioremap()/iounmap() should work fine too.

this was originally changed by Abdiel (I think) and I left as it
is as I tried to change as less as I could from the original
work.

> Reviewed-by: Matt Roper <matthew.d.roper@intel.com>

Thank you!

Andi

Re: [Intel-gfx] [PATCH v2 1/2] drm/i915: Prepare for multiple GTs

[Andi Shyti]

Hi Matt,

[...]

> > -int intel_uncore_setup_mmio(struct intel_uncore *uncore)
> > +int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr)
> >  {
> >  	struct drm_i915_private *i915 = uncore->i915;
> > -	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
> > -	int mmio_bar;
> >  	int mmio_size;
> >  
> > -	mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0;
> >  	/*
> >  	 * Before gen4, the registers and the GTT are behind different BARs.
> >  	 * However, from gen4 onwards, the registers and the GTT are shared
> > @@ -2044,7 +2041,7 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore)
> >  	else
> >  		mmio_size = 2 * 1024 * 1024;
> >  
> > -	uncore->regs = pci_iomap(pdev, mmio_bar, mmio_size);
> > +	uncore->regs = ioremap(phys_addr, mmio_size);
> 
> Is there a specific reason we switch to ioremap() instead of
> pci_iomap_range()?  I.e., we could pass 'phys_offset' rather than
> 'phys_addr' and call
> 
>         pci_iomap_range(pdev, mmio_bar, phys_offset, mmio_size);
> 
> Not that it really matters too much either way as far as I can see;
> ioremap()/iounmap() should work fine too.

this was originally changed by Abdiel (I think) and I left as it
is as I tried to change as less as I could from the original
work.

> Reviewed-by: Matt Roper <matthew.d.roper@intel.com>

Thank you!

Andi

Re: [PATCH v2 1/2] drm/i915: Prepare for multiple GTs

[Abdiel Janulgue]

On 14.1.2022 19.59, Andi Shyti wrote:
> Hi Matt,
> 
> [...]
> 
>>> -int intel_uncore_setup_mmio(struct intel_uncore *uncore)
>>> +int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr)
>>>   {
>>>   	struct drm_i915_private *i915 = uncore->i915;
>>> -	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
>>> -	int mmio_bar;
>>>   	int mmio_size;
>>>   
>>> -	mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0;
>>>   	/*
>>>   	 * Before gen4, the registers and the GTT are behind different BARs.
>>>   	 * However, from gen4 onwards, the registers and the GTT are shared
>>> @@ -2044,7 +2041,7 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore)
>>>   	else
>>>   		mmio_size = 2 * 1024 * 1024;
>>>   
>>> -	uncore->regs = pci_iomap(pdev, mmio_bar, mmio_size);
>>> +	uncore->regs = ioremap(phys_addr, mmio_size);
>>
>> Is there a specific reason we switch to ioremap() instead of
>> pci_iomap_range()?  I.e., we could pass 'phys_offset' rather than
>> 'phys_addr' and call
>>
>>          pci_iomap_range(pdev, mmio_bar, phys_offset, mmio_size);
>>
>> Not that it really matters too much either way as far as I can see;
>> ioremap()/iounmap() should work fine too.
> 
> this was originally changed by Abdiel (I think) and I left as it
> is as I tried to change as less as I could from the original
> work.

Hey,

It’s been awhile and this code has changed a lot! I remember needing the 
unmapped phys_addr of each tile’s mmio_bar as well when I refactored 
this spot (setup_mmio) so its GGTT portion can be ioremapped according 
to ggtt_probe_common.

Cheers!
Abdiel
> 
>> Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
> 
> Thank you!
> 
> Andi

Re: [Intel-gfx] [PATCH v2 1/2] drm/i915: Prepare for multiple GTs

[Abdiel Janulgue]

On 14.1.2022 19.59, Andi Shyti wrote:
> Hi Matt,
> 
> [...]
> 
>>> -int intel_uncore_setup_mmio(struct intel_uncore *uncore)
>>> +int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr)
>>>   {
>>>   	struct drm_i915_private *i915 = uncore->i915;
>>> -	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
>>> -	int mmio_bar;
>>>   	int mmio_size;
>>>   
>>> -	mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0;
>>>   	/*
>>>   	 * Before gen4, the registers and the GTT are behind different BARs.
>>>   	 * However, from gen4 onwards, the registers and the GTT are shared
>>> @@ -2044,7 +2041,7 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore)
>>>   	else
>>>   		mmio_size = 2 * 1024 * 1024;
>>>   
>>> -	uncore->regs = pci_iomap(pdev, mmio_bar, mmio_size);
>>> +	uncore->regs = ioremap(phys_addr, mmio_size);
>>
>> Is there a specific reason we switch to ioremap() instead of
>> pci_iomap_range()?  I.e., we could pass 'phys_offset' rather than
>> 'phys_addr' and call
>>
>>          pci_iomap_range(pdev, mmio_bar, phys_offset, mmio_size);
>>
>> Not that it really matters too much either way as far as I can see;
>> ioremap()/iounmap() should work fine too.
> 
> this was originally changed by Abdiel (I think) and I left as it
> is as I tried to change as less as I could from the original
> work.

Hey,

It’s been awhile and this code has changed a lot! I remember needing the 
unmapped phys_addr of each tile’s mmio_bar as well when I refactored 
this spot (setup_mmio) so its GGTT portion can be ioremapped according 
to ggtt_probe_common.

Cheers!
Abdiel
> 
>> Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
> 
> Thank you!
> 
> Andi

[PATCH v2 2/2] drm/i915/gt: make a gt sysfs group and move power management files

[Andi Shyti]

The GT has its own properties and in sysfs they should be grouped
in the 'gt/' directory.

Create a 'gt/' directory in sysfs which will contain gt0...gtN
directories related to each tile configured in the GPU. Move the
power management files inside those directories.

The previous power management files are kept in their original
root directory to avoid breaking the ABI. They point to the tile
'0' and a warning message is printed whenever accessed to. The
deprecated interface needs for the CONFIG_SYSFS_DEPRECATED_V2
flag in order to be generated.

The new sysfs structure will have a similar layout for the 4 tile
case:

/sys/.../card0
         ├── gt
         │   ├── gt0
         │   │   ├── id
         │   │   ├── rc6_enable
         │   │   ├── rc6_residency_ms
         │   │   ├── rps_act_freq_mhz
         │   │   ├── rps_boost_freq_mhz
         │   │   ├── rps_cur_freq_mhz
         │   │   ├── rps_max_freq_mhz
         │   │   ├── rps_min_freq_mhz
         │   │   ├── rps_RP0_freq_mhz
         │   │   ├── rps_RP1_freq_mhz
         │   │   └── rps_RPn_freq_mhz
	 .   .
	 .   .
	 .   .
         │   └── gt3
         │       ├── id
         │       ├── rc6_enable
         │       ├── rc6_residency_ms
         │       ├── rps_act_freq_mhz
         │       ├── rps_boost_freq_mhz
         │       ├── rps_cur_freq_mhz
         │       ├── rps_max_freq_mhz
         │       ├── rps_min_freq_mhz
         │       ├── rps_RP0_freq_mhz
         │       ├── rps_RP1_freq_mhz
         │       └── rps_RPn_freq_mhz
         ├── gt_act_freq_mhz   -+
         ├── gt_boost_freq_mhz  |
         ├── gt_cur_freq_mhz    |    Original interface
         ├── gt_max_freq_mhz    +─-> kept as existing ABI;
         ├── gt_min_freq_mhz    |    it points to gt0/
         ├── gt_RP0_freq_mhz    |
         └── gt_RP1_freq_mhz    |
         └── gt_RPn_freq_mhz   -+

Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
 drivers/gpu/drm/i915/Makefile         |   4 +-
 drivers/gpu/drm/i915/gt/intel_gt.c    |   2 +
 drivers/gpu/drm/i915/gt/sysfs_gt.c    | 126 +++++++++
 drivers/gpu/drm/i915/gt/sysfs_gt.h    |  44 +++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c | 393 ++++++++++++++++++++++++++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h |  16 ++
 drivers/gpu/drm/i915/i915_drv.h       |   2 +
 drivers/gpu/drm/i915/i915_reg.h       |   1 +
 drivers/gpu/drm/i915/i915_sysfs.c     | 315 +--------------------
 drivers/gpu/drm/i915/i915_sysfs.h     |   3 +
 10 files changed, 600 insertions(+), 306 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.h
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index aa86ac33effc..5fd203c626fc 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -121,7 +121,9 @@ gt-y += \
 	gt/intel_timeline.o \
 	gt/intel_workarounds.o \
 	gt/shmem_utils.o \
-	gt/sysfs_engines.o
+	gt/sysfs_engines.o \
+	gt/sysfs_gt.o \
+	gt/sysfs_gt_pm.o
 # autogenerated null render state
 gt-y += \
 	gt/gen6_renderstate.o \
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 17927da9e23e..2584c51c1c14 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -25,6 +25,7 @@
 #include "intel_rps.h"
 #include "intel_uncore.h"
 #include "shmem_utils.h"
+#include "sysfs_gt.h"
 #include "pxp/intel_pxp.h"
 
 static void
@@ -453,6 +454,7 @@ void intel_gt_driver_register(struct intel_gt *gt)
 	intel_rps_driver_register(&gt->rps);
 
 	intel_gt_debugfs_register(gt);
+	intel_gt_sysfs_register(gt);
 }
 
 static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size)
diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt.c b/drivers/gpu/drm/i915/gt/sysfs_gt.c
new file mode 100644
index 000000000000..46cf033a53ec
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/sysfs_gt.c
@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#include <drm/drm_device.h>
+#include <linux/device.h>
+#include <linux/kobject.h>
+#include <linux/printk.h>
+#include <linux/sysfs.h>
+
+#include "i915_drv.h"
+#include "i915_sysfs.h"
+#include "intel_gt.h"
+#include "intel_gt_types.h"
+#include "intel_rc6.h"
+
+#include "sysfs_gt.h"
+#include "sysfs_gt_pm.h"
+
+struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev,
+					    const char *name)
+{
+	struct kobject *kobj = &dev->kobj;
+
+	/*
+	 * We are interested at knowing from where the interface
+	 * has been called, whether it's called from gt/ or from
+	 * the parent directory.
+	 * From the interface position it depends also the value of
+	 * the private data.
+	 * If the interface is called from gt/ then private data is
+	 * of the "struct intel_gt *" type, otherwise it's * a
+	 * "struct drm_i915_private *" type.
+	 */
+	if (!is_object_gt(kobj)) {
+		struct drm_i915_private *i915 = kdev_minor_to_i915(dev);
+
+		pr_devel_ratelimited(DEPRECATED
+			"%s (pid %d) is trying to access deprecated %s "
+			"sysfs control, please use gt/gt<n>/%s instead\n",
+			current->comm, task_pid_nr(current), name, name);
+		return to_gt(i915);
+	}
+
+	return kobj_to_gt(kobj);
+}
+
+static struct kobject *gt_get_parent_obj(struct intel_gt *gt)
+{
+	return &gt->i915->drm.primary->kdev->kobj;
+}
+
+static ssize_t id_show(struct device *dev,
+		       struct device_attribute *attr,
+		       char *buf)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+
+	return sysfs_emit(buf, "%u\n", gt->info.id);
+}
+
+static DEVICE_ATTR_RO(id);
+
+static void kobj_gt_release(struct kobject *kobj)
+{
+	kfree(kobj);
+}
+
+static struct kobj_type kobj_gt_type = {
+	.release = kobj_gt_release,
+	.sysfs_ops = &kobj_sysfs_ops
+};
+
+struct kobject *
+intel_gt_create_kobj(struct intel_gt *gt, struct kobject *dir, const char *name)
+{
+	struct kobj_gt *kg;
+
+	kg = kzalloc(sizeof(*kg), GFP_KERNEL);
+	if (!kg)
+		return NULL;
+
+	kobject_init(&kg->base, &kobj_gt_type);
+	kg->gt = gt;
+
+	/* xfer ownership to sysfs tree */
+	if (kobject_add(&kg->base, dir, "%s", name)) {
+		kobject_put(&kg->base);
+		return NULL;
+	}
+
+	return &kg->base; /* borrowed ref */
+}
+
+void intel_gt_sysfs_register(struct intel_gt *gt)
+{
+	struct kobject *dir;
+	char name[80];
+
+	/*
+	 * We need to make things right with the
+	 * ABI compatibility. The files were originally
+	 * generated under the parent directory.
+	 *
+	 * We generate the files only for gt 0
+	 * to avoid duplicates.
+	 */
+	if (!gt->info.id)
+		intel_gt_sysfs_pm_init(gt, gt_get_parent_obj(gt));
+
+	snprintf(name, sizeof(name), "gt%d", gt->info.id);
+
+	dir = intel_gt_create_kobj(gt, gt->i915->sysfs_gt, name);
+	if (!dir) {
+		drm_err(&gt->i915->drm,
+			"failed to initialize %s sysfs root\n", name);
+		return;
+	}
+
+	if (sysfs_create_file(dir, &dev_attr_id.attr))
+		drm_err(&gt->i915->drm,
+			"failed to create sysfs %s info files\n", name);
+
+	intel_gt_sysfs_pm_init(gt, dir);
+}
diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt.h b/drivers/gpu/drm/i915/gt/sysfs_gt.h
new file mode 100644
index 000000000000..cd80a14bb14d
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/sysfs_gt.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#ifndef __SYSFS_GT_H__
+#define __SYSFS_GT_H__
+
+#include <linux/ctype.h>
+#include <linux/kobject.h>
+
+#include "i915_gem.h" /* GEM_BUG_ON() */
+
+struct intel_gt;
+
+struct kobj_gt {
+	struct kobject base;
+	struct intel_gt *gt;
+};
+
+static inline bool is_object_gt(struct kobject *kobj)
+{
+	bool b = !strncmp(kobj->name, "gt", 2);
+
+	GEM_BUG_ON(b && !isdigit(kobj->name[2]));
+
+	return b;
+}
+
+struct kobject *
+intel_gt_create_kobj(struct intel_gt *gt,
+		     struct kobject *dir,
+		     const char *name);
+
+static inline struct intel_gt *kobj_to_gt(struct kobject *kobj)
+{
+	return container_of(kobj, struct kobj_gt, base)->gt;
+}
+
+void intel_gt_sysfs_register(struct intel_gt *gt);
+struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev,
+					    const char *name);
+
+#endif /* SYSFS_GT_H */
diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
new file mode 100644
index 000000000000..6f4424be42d1
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
@@ -0,0 +1,393 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#include <drm/drm_device.h>
+#include <linux/sysfs.h>
+#include <linux/printk.h>
+
+#include "i915_drv.h"
+#include "intel_gt.h"
+#include "intel_rc6.h"
+#include "intel_rps.h"
+#include "sysfs_gt.h"
+#include "sysfs_gt_pm.h"
+
+#ifdef CONFIG_PM
+static u32 get_residency(struct intel_gt *gt, i915_reg_t reg)
+{
+	intel_wakeref_t wakeref;
+	u64 res = 0;
+
+	with_intel_runtime_pm(gt->uncore->rpm, wakeref)
+		res = intel_rc6_residency_us(&gt->rc6, reg);
+
+	return DIV_ROUND_CLOSEST_ULL(res, 1000);
+}
+
+static ssize_t rc6_enable_show(struct device *dev,
+			       struct device_attribute *attr,
+			       char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	u8 mask = 0;
+
+	if (HAS_RC6(gt->i915))
+		mask |= BIT(0);
+	if (HAS_RC6p(gt->i915))
+		mask |= BIT(1);
+	if (HAS_RC6pp(gt->i915))
+		mask |= BIT(2);
+
+	return scnprintf(buff, PAGE_SIZE, "%x\n", mask);
+}
+
+static ssize_t rc6_residency_ms_show(struct device *dev,
+				     struct device_attribute *attr,
+				     char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	u32 rc6_residency = get_residency(gt, GEN6_GT_GFX_RC6);
+
+	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6_residency);
+}
+
+static ssize_t rc6p_residency_ms_show(struct device *dev,
+				      struct device_attribute *attr,
+				      char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	u32 rc6p_residency = get_residency(gt, GEN6_GT_GFX_RC6p);
+
+	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6p_residency);
+}
+
+static ssize_t rc6pp_residency_ms_show(struct device *dev,
+				       struct device_attribute *attr,
+				       char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	u32 rc6pp_residency = get_residency(gt, GEN6_GT_GFX_RC6pp);
+
+	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6pp_residency);
+}
+
+static ssize_t media_rc6_residency_ms_show(struct device *dev,
+					   struct device_attribute *attr,
+					   char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	u32 rc6_residency = get_residency(gt, VLV_GT_MEDIA_RC6);
+
+	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6_residency);
+}
+
+static DEVICE_ATTR_RO(rc6_enable);
+static DEVICE_ATTR_RO(rc6_residency_ms);
+static DEVICE_ATTR_RO(rc6p_residency_ms);
+static DEVICE_ATTR_RO(rc6pp_residency_ms);
+static DEVICE_ATTR_RO(media_rc6_residency_ms);
+
+static struct attribute *rc6_attrs[] = {
+	&dev_attr_rc6_enable.attr,
+	&dev_attr_rc6_residency_ms.attr,
+	NULL
+};
+
+static struct attribute *rc6p_attrs[] = {
+	&dev_attr_rc6p_residency_ms.attr,
+	&dev_attr_rc6pp_residency_ms.attr,
+	NULL
+};
+
+static struct attribute *media_rc6_attrs[] = {
+	&dev_attr_media_rc6_residency_ms.attr,
+	NULL
+};
+
+static const struct attribute_group rc6_attr_group[] = {
+	{ .name = power_group_name, .attrs = rc6_attrs },
+	{ .attrs = rc6_attrs }
+};
+
+static const struct attribute_group rc6p_attr_group[] = {
+	{ .name = power_group_name, .attrs = rc6p_attrs },
+	{ .attrs = rc6p_attrs }
+};
+
+static const struct attribute_group media_rc6_attr_group[] = {
+	{ .name = power_group_name, .attrs = media_rc6_attrs },
+	{ .attrs = media_rc6_attrs }
+};
+
+static int __intel_gt_sysfs_create_group(struct kobject *kobj,
+					 const struct attribute_group *grp)
+{
+	int i = is_object_gt(kobj);
+
+	return i ? sysfs_create_group(kobj, &grp[i]) :
+		   sysfs_merge_group(kobj, &grp[i]);
+}
+
+static void intel_sysfs_rc6_init(struct intel_gt *gt, struct kobject *kobj)
+{
+	int ret;
+
+	if (!HAS_RC6(gt->i915))
+		return;
+
+	ret = __intel_gt_sysfs_create_group(kobj, rc6_attr_group);
+	if (ret)
+		drm_err(&gt->i915->drm,
+			"failed to create gt%u RC6 sysfs files\n", gt->info.id);
+
+	if (HAS_RC6p(gt->i915)) {
+		ret = __intel_gt_sysfs_create_group(kobj, rc6p_attr_group);
+		if (ret)
+			drm_err(&gt->i915->drm,
+				"failed to create gt%u RC6p sysfs files\n",
+				gt->info.id);
+	}
+
+	if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915)) {
+		ret = __intel_gt_sysfs_create_group(kobj, media_rc6_attr_group);
+		if (ret)
+			drm_err(&gt->i915->drm,
+				"failed to create media %u RC6 sysfs files\n",
+				gt->info.id);
+	}
+}
+#else
+static void intel_sysfs_rc6_init(struct intel_gt *gt, struct kobject *kobj)
+{
+}
+#endif /* CONFIG_PM */
+
+static ssize_t act_freq_mhz_show(struct device *dev,
+				 struct device_attribute *attr, char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+
+	return scnprintf(buff, PAGE_SIZE, "%d\n",
+			intel_rps_read_actual_frequency(&gt->rps));
+}
+
+static ssize_t cur_freq_mhz_show(struct device *dev,
+				 struct device_attribute *attr, char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+
+	return scnprintf(buff, PAGE_SIZE, "%d\n",
+			 intel_rps_get_requested_frequency(rps));
+}
+
+static ssize_t boost_freq_mhz_show(struct device *dev,
+				   struct device_attribute *attr,
+				   char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+
+	return scnprintf(buff, PAGE_SIZE, "%d\n",
+			 intel_rps_get_boost_frequency(rps));
+}
+
+static ssize_t boost_freq_mhz_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buff, size_t count)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+	bool boost = false;
+	ssize_t ret;
+	u32 val;
+
+	ret = kstrtou32(buff, 0, &val);
+	if (ret)
+		return ret;
+
+	/* Validate against (static) hardware limits */
+	val = intel_freq_opcode(rps, val);
+	if (val < rps->min_freq || val > rps->max_freq)
+		return -EINVAL;
+
+	mutex_lock(&rps->lock);
+	if (val != rps->boost_freq) {
+		rps->boost_freq = val;
+		boost = atomic_read(&rps->num_waiters);
+	}
+	mutex_unlock(&rps->lock);
+	if (boost)
+		schedule_work(&rps->work);
+
+	return count;
+}
+
+static ssize_t vlv_rpe_freq_mhz_show(struct device *dev,
+				     struct device_attribute *attr, char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+
+	return scnprintf(buff, PAGE_SIZE, "%d\n",
+			intel_gpu_freq(rps, rps->efficient_freq));
+}
+
+static ssize_t max_freq_mhz_show(struct device *dev,
+				 struct device_attribute *attr,
+				 char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+
+	return sysfs_emit(buff, "%d\n", intel_rps_get_max_frequency(rps));
+}
+
+static ssize_t max_freq_mhz_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buff, size_t count)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+	ssize_t ret;
+	u32 val;
+
+	ret = kstrtou32(buff, 0, &val);
+	if (ret)
+		return ret;
+
+	ret = intel_rps_set_max_frequency(rps, val);
+
+	return ret ?: count;
+}
+
+static ssize_t min_freq_mhz_show(struct device *dev,
+				 struct device_attribute *attr,
+				 char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+
+	return sysfs_emit(buff, "%d\n", intel_rps_get_min_frequency(rps));
+}
+
+static ssize_t min_freq_mhz_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buff, size_t count)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+	ssize_t ret;
+	u32 val;
+
+	ret = kstrtou32(buff, 0, &val);
+	if (ret)
+		return ret;
+
+	ret = intel_rps_set_min_frequency(rps, val);
+
+	return ret ?: count;
+}
+
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)
+
+#define INTEL_GT_RPS_SYSFS_ATTR_RO(_name)				\
+		INTEL_GT_RPS_SYSFS_ATTR(_name, 0444, _name##_show, NULL)
+#define INTEL_GT_RPS_SYSFS_ATTR_RW(_name)				\
+		INTEL_GT_RPS_SYSFS_ATTR(_name, 0644, _name##_show, _name##_store)
+
+static INTEL_GT_RPS_SYSFS_ATTR_RO(act_freq_mhz);
+static INTEL_GT_RPS_SYSFS_ATTR_RO(cur_freq_mhz);
+static INTEL_GT_RPS_SYSFS_ATTR_RW(boost_freq_mhz);
+static INTEL_GT_RPS_SYSFS_ATTR_RW(max_freq_mhz);
+static INTEL_GT_RPS_SYSFS_ATTR_RW(min_freq_mhz);
+
+static DEVICE_ATTR_RO(vlv_rpe_freq_mhz);
+
+static ssize_t rps_rp_mhz_show(struct device *dev,
+			       struct device_attribute *attr,
+			       char *buff);
+
+static INTEL_GT_RPS_SYSFS_ATTR(RP0_freq_mhz, 0444, rps_rp_mhz_show, NULL);
+static INTEL_GT_RPS_SYSFS_ATTR(RP1_freq_mhz, 0444, rps_rp_mhz_show, NULL);
+static INTEL_GT_RPS_SYSFS_ATTR(RPn_freq_mhz, 0444, rps_rp_mhz_show, NULL);
+
+#define GEN6_ATTR(s) { \
+		&dev_attr_##s##_act_freq_mhz.attr, \
+		&dev_attr_##s##_cur_freq_mhz.attr, \
+		&dev_attr_##s##_boost_freq_mhz.attr, \
+		&dev_attr_##s##_max_freq_mhz.attr, \
+		&dev_attr_##s##_min_freq_mhz.attr, \
+		&dev_attr_##s##_RP0_freq_mhz.attr, \
+		&dev_attr_##s##_RP1_freq_mhz.attr, \
+		&dev_attr_##s##_RPn_freq_mhz.attr, \
+		NULL, \
+	}
+
+#define GEN6_RPS_ATTR GEN6_ATTR(rps)
+#define GEN6_GT_ATTR  GEN6_ATTR(gt)
+
+/* For now we have a static number of RP states */
+static ssize_t rps_rp_mhz_show(struct device *dev,
+			       struct device_attribute *attr,
+			       char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+	u32 val;
+
+	if (attr == &dev_attr_gt_RP0_freq_mhz ||
+	    attr == &dev_attr_rps_RP0_freq_mhz) {
+		val = intel_rps_get_rp0_frequency(rps);
+	} else if (attr == &dev_attr_gt_RP1_freq_mhz ||
+		   attr == &dev_attr_rps_RP1_freq_mhz) {
+		   val = intel_rps_get_rp1_frequency(rps);
+	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||
+		   attr == &dev_attr_rps_RPn_freq_mhz) {
+		   val = intel_rps_get_rpn_frequency(rps);
+	} else {
+		GEM_WARN_ON(1);
+		return -ENODEV;
+	}
+
+	return scnprintf(buff, PAGE_SIZE, "%d\n", val);
+}
+
+static const struct attribute * const gen6_rps_attrs[] = GEN6_RPS_ATTR;
+static const struct attribute * const gen6_gt_attrs[]  = GEN6_GT_ATTR;
+
+static int intel_sysfs_rps_init(struct intel_gt *gt, struct kobject *kobj,
+				const struct attribute * const *attrs)
+{
+	int ret;
+
+	if (GRAPHICS_VER(gt->i915) < 6)
+		return 0;
+
+	ret = sysfs_create_files(kobj, attrs);
+	if (ret)
+		return ret;
+
+	if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915))
+		ret = sysfs_create_file(kobj, &dev_attr_vlv_rpe_freq_mhz.attr);
+
+	return ret;
+}
+
+void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj)
+{
+	int ret;
+
+	intel_sysfs_rc6_init(gt, kobj);
+
+	ret = is_object_gt(kobj) ?
+	      intel_sysfs_rps_init(gt, kobj, gen6_rps_attrs) :
+	      intel_sysfs_rps_init(gt, kobj, gen6_gt_attrs);
+	if (ret)
+		drm_err(&gt->i915->drm,
+			"failed to create gt%u RPS sysfs files", gt->info.id);
+}
diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
new file mode 100644
index 000000000000..18c60d929e6d
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#ifndef __SYSFS_GT_PM_H__
+#define __SYSFS_GT_PM_H__
+
+#include <linux/kobject.h>
+
+#include "intel_gt_types.h"
+
+void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj);
+void intel_gt_sysfs_pm_remove(struct intel_gt *gt, struct kobject *kobj);
+
+#endif /* SYSFS_RC6_H */
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 14dbbc5ba9e4..595e2f41ba43 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -997,6 +997,8 @@ struct drm_i915_private {
 #define I915_MAX_GT 4
 	struct intel_gt *gt[I915_MAX_GT];
 
+	struct kobject *sysfs_gt;
+
 	struct {
 		struct i915_gem_contexts {
 			spinlock_t lock; /* locks list */
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 7c4013a0db61..12b2018e2407 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -8480,6 +8480,7 @@ enum {
 #define   GEN6_AGGRESSIVE_TURBO			(0 << 15)
 #define   GEN9_SW_REQ_UNSLICE_RATIO_SHIFT	23
 #define   GEN9_IGNORE_SLICE_RATIO		(0 << 0)
+#define   GEN12_SW_REQ_UNSLICE_RATIO_SHIFT	23
 
 #define GEN6_RC_VIDEO_FREQ			_MMIO(0xA00C)
 #define GEN6_RC_CONTROL				_MMIO(0xA090)
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
index fae4d1f4f275..d6687e33f29d 100644
--- a/drivers/gpu/drm/i915/i915_sysfs.c
+++ b/drivers/gpu/drm/i915/i915_sysfs.c
@@ -38,113 +38,12 @@
 #include "i915_sysfs.h"
 #include "intel_pm.h"
 
-static inline struct drm_i915_private *kdev_minor_to_i915(struct device *kdev)
+struct drm_i915_private *kdev_minor_to_i915(struct device *kdev)
 {
 	struct drm_minor *minor = dev_get_drvdata(kdev);
 	return to_i915(minor->dev);
 }
 
-#ifdef CONFIG_PM
-static u32 calc_residency(struct drm_i915_private *dev_priv,
-			  i915_reg_t reg)
-{
-	intel_wakeref_t wakeref;
-	u64 res = 0;
-
-	with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref)
-		res = intel_rc6_residency_us(&to_gt(dev_priv)->rc6, reg);
-
-	return DIV_ROUND_CLOSEST_ULL(res, 1000);
-}
-
-static ssize_t rc6_enable_show(struct device *kdev,
-			       struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	unsigned int mask;
-
-	mask = 0;
-	if (HAS_RC6(dev_priv))
-		mask |= BIT(0);
-	if (HAS_RC6p(dev_priv))
-		mask |= BIT(1);
-	if (HAS_RC6pp(dev_priv))
-		mask |= BIT(2);
-
-	return sysfs_emit(buf, "%x\n", mask);
-}
-
-static ssize_t rc6_residency_ms_show(struct device *kdev,
-				     struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	u32 rc6_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6);
-	return sysfs_emit(buf, "%u\n", rc6_residency);
-}
-
-static ssize_t rc6p_residency_ms_show(struct device *kdev,
-				      struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	u32 rc6p_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6p);
-	return sysfs_emit(buf, "%u\n", rc6p_residency);
-}
-
-static ssize_t rc6pp_residency_ms_show(struct device *kdev,
-				       struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	u32 rc6pp_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6pp);
-	return sysfs_emit(buf, "%u\n", rc6pp_residency);
-}
-
-static ssize_t media_rc6_residency_ms_show(struct device *kdev,
-					   struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	u32 rc6_residency = calc_residency(dev_priv, VLV_GT_MEDIA_RC6);
-	return sysfs_emit(buf, "%u\n", rc6_residency);
-}
-
-static DEVICE_ATTR_RO(rc6_enable);
-static DEVICE_ATTR_RO(rc6_residency_ms);
-static DEVICE_ATTR_RO(rc6p_residency_ms);
-static DEVICE_ATTR_RO(rc6pp_residency_ms);
-static DEVICE_ATTR_RO(media_rc6_residency_ms);
-
-static struct attribute *rc6_attrs[] = {
-	&dev_attr_rc6_enable.attr,
-	&dev_attr_rc6_residency_ms.attr,
-	NULL
-};
-
-static const struct attribute_group rc6_attr_group = {
-	.name = power_group_name,
-	.attrs =  rc6_attrs
-};
-
-static struct attribute *rc6p_attrs[] = {
-	&dev_attr_rc6p_residency_ms.attr,
-	&dev_attr_rc6pp_residency_ms.attr,
-	NULL
-};
-
-static const struct attribute_group rc6p_attr_group = {
-	.name = power_group_name,
-	.attrs =  rc6p_attrs
-};
-
-static struct attribute *media_rc6_attrs[] = {
-	&dev_attr_media_rc6_residency_ms.attr,
-	NULL
-};
-
-static const struct attribute_group media_rc6_attr_group = {
-	.name = power_group_name,
-	.attrs =  media_rc6_attrs
-};
-#endif
-
 static int l3_access_valid(struct drm_i915_private *i915, loff_t offset)
 {
 	if (!HAS_L3_DPF(i915))
@@ -256,171 +155,6 @@ static const struct bin_attribute dpf_attrs_1 = {
 	.private = (void *)1
 };
 
-static ssize_t gt_act_freq_mhz_show(struct device *kdev,
-				    struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &to_gt(i915)->rps;
-
-	return sysfs_emit(buf, "%d\n", intel_rps_read_actual_frequency(rps));
-}
-
-static ssize_t gt_cur_freq_mhz_show(struct device *kdev,
-				    struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &to_gt(i915)->rps;
-
-	return sysfs_emit(buf, "%d\n", intel_rps_get_requested_frequency(rps));
-}
-
-static ssize_t gt_boost_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &to_gt(i915)->rps;
-
-	return sysfs_emit(buf, "%d\n", intel_rps_get_boost_frequency(rps));
-}
-
-static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
-				       struct device_attribute *attr,
-				       const char *buf, size_t count)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &to_gt(dev_priv)->rps;
-	ssize_t ret;
-	u32 val;
-
-	ret = kstrtou32(buf, 0, &val);
-	if (ret)
-		return ret;
-
-	ret = intel_rps_set_boost_frequency(rps, val);
-
-	return ret ?: count;
-}
-
-static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev,
-				     struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &to_gt(dev_priv)->rps;
-
-	return sysfs_emit(buf, "%d\n", intel_gpu_freq(rps, rps->efficient_freq));
-}
-
-static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_gt *gt = to_gt(dev_priv);
-	struct intel_rps *rps = &gt->rps;
-
-	return sysfs_emit(buf, "%d\n", intel_rps_get_max_frequency(rps));
-}
-
-static ssize_t gt_max_freq_mhz_store(struct device *kdev,
-				     struct device_attribute *attr,
-				     const char *buf, size_t count)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_gt *gt = to_gt(dev_priv);
-	struct intel_rps *rps = &gt->rps;
-	ssize_t ret;
-	u32 val;
-
-	ret = kstrtou32(buf, 0, &val);
-	if (ret)
-		return ret;
-
-	ret = intel_rps_set_max_frequency(rps, val);
-
-	return ret ?: count;
-}
-
-static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
-	struct intel_gt *gt = to_gt(i915);
-	struct intel_rps *rps = &gt->rps;
-
-	return sysfs_emit(buf, "%d\n", intel_rps_get_min_frequency(rps));
-}
-
-static ssize_t gt_min_freq_mhz_store(struct device *kdev,
-				     struct device_attribute *attr,
-				     const char *buf, size_t count)
-{
-	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &to_gt(i915)->rps;
-	ssize_t ret;
-	u32 val;
-
-	ret = kstrtou32(buf, 0, &val);
-	if (ret)
-		return ret;
-
-	ret = intel_rps_set_min_frequency(rps, val);
-
-	return ret ?: count;
-}
-
-static DEVICE_ATTR_RO(gt_act_freq_mhz);
-static DEVICE_ATTR_RO(gt_cur_freq_mhz);
-static DEVICE_ATTR_RW(gt_boost_freq_mhz);
-static DEVICE_ATTR_RW(gt_max_freq_mhz);
-static DEVICE_ATTR_RW(gt_min_freq_mhz);
-
-static DEVICE_ATTR_RO(vlv_rpe_freq_mhz);
-
-static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf);
-static DEVICE_ATTR(gt_RP0_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
-static DEVICE_ATTR(gt_RP1_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
-static DEVICE_ATTR(gt_RPn_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
-
-/* For now we have a static number of RP states */
-static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &to_gt(dev_priv)->rps;
-	u32 val;
-
-	if (attr == &dev_attr_gt_RP0_freq_mhz)
-		val = intel_rps_get_rp0_frequency(rps);
-	else if (attr == &dev_attr_gt_RP1_freq_mhz)
-		val = intel_rps_get_rp1_frequency(rps);
-	else if (attr == &dev_attr_gt_RPn_freq_mhz)
-		val = intel_rps_get_rpn_frequency(rps);
-	else
-		BUG();
-
-	return sysfs_emit(buf, "%d\n", val);
-}
-
-static const struct attribute * const gen6_attrs[] = {
-	&dev_attr_gt_act_freq_mhz.attr,
-	&dev_attr_gt_cur_freq_mhz.attr,
-	&dev_attr_gt_boost_freq_mhz.attr,
-	&dev_attr_gt_max_freq_mhz.attr,
-	&dev_attr_gt_min_freq_mhz.attr,
-	&dev_attr_gt_RP0_freq_mhz.attr,
-	&dev_attr_gt_RP1_freq_mhz.attr,
-	&dev_attr_gt_RPn_freq_mhz.attr,
-	NULL,
-};
-
-static const struct attribute * const vlv_attrs[] = {
-	&dev_attr_gt_act_freq_mhz.attr,
-	&dev_attr_gt_cur_freq_mhz.attr,
-	&dev_attr_gt_boost_freq_mhz.attr,
-	&dev_attr_gt_max_freq_mhz.attr,
-	&dev_attr_gt_min_freq_mhz.attr,
-	&dev_attr_gt_RP0_freq_mhz.attr,
-	&dev_attr_gt_RP1_freq_mhz.attr,
-	&dev_attr_gt_RPn_freq_mhz.attr,
-	&dev_attr_vlv_rpe_freq_mhz.attr,
-	NULL,
-};
-
 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
 
 static ssize_t error_state_read(struct file *filp, struct kobject *kobj,
@@ -486,34 +220,16 @@ static void i915_setup_error_capture(struct device *kdev) {}
 static void i915_teardown_error_capture(struct device *kdev) {}
 #endif
 
+static struct kobject *i915_setup_gt_sysfs(struct kobject *parent)
+{
+	return kobject_create_and_add("gt", parent);
+}
+
 void i915_setup_sysfs(struct drm_i915_private *dev_priv)
 {
 	struct device *kdev = dev_priv->drm.primary->kdev;
 	int ret;
 
-#ifdef CONFIG_PM
-	if (HAS_RC6(dev_priv)) {
-		ret = sysfs_merge_group(&kdev->kobj,
-					&rc6_attr_group);
-		if (ret)
-			drm_err(&dev_priv->drm,
-				"RC6 residency sysfs setup failed\n");
-	}
-	if (HAS_RC6p(dev_priv)) {
-		ret = sysfs_merge_group(&kdev->kobj,
-					&rc6p_attr_group);
-		if (ret)
-			drm_err(&dev_priv->drm,
-				"RC6p residency sysfs setup failed\n");
-	}
-	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
-		ret = sysfs_merge_group(&kdev->kobj,
-					&media_rc6_attr_group);
-		if (ret)
-			drm_err(&dev_priv->drm,
-				"Media RC6 residency sysfs setup failed\n");
-	}
-#endif
 	if (HAS_L3_DPF(dev_priv)) {
 		ret = device_create_bin_file(kdev, &dpf_attrs);
 		if (ret)
@@ -529,13 +245,10 @@ void i915_setup_sysfs(struct drm_i915_private *dev_priv)
 		}
 	}
 
-	ret = 0;
-	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
-		ret = sysfs_create_files(&kdev->kobj, vlv_attrs);
-	else if (GRAPHICS_VER(dev_priv) >= 6)
-		ret = sysfs_create_files(&kdev->kobj, gen6_attrs);
-	if (ret)
-		drm_err(&dev_priv->drm, "RPS sysfs setup failed\n");
+	dev_priv->sysfs_gt = i915_setup_gt_sysfs(&kdev->kobj);
+	if (!dev_priv->sysfs_gt)
+		drm_err(&dev_priv->drm,
+			"failed to register GT sysfs directory\n");
 
 	i915_setup_error_capture(kdev);
 
@@ -548,14 +261,6 @@ void i915_teardown_sysfs(struct drm_i915_private *dev_priv)
 
 	i915_teardown_error_capture(kdev);
 
-	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
-		sysfs_remove_files(&kdev->kobj, vlv_attrs);
-	else
-		sysfs_remove_files(&kdev->kobj, gen6_attrs);
 	device_remove_bin_file(kdev,  &dpf_attrs_1);
 	device_remove_bin_file(kdev,  &dpf_attrs);
-#ifdef CONFIG_PM
-	sysfs_unmerge_group(&kdev->kobj, &rc6_attr_group);
-	sysfs_unmerge_group(&kdev->kobj, &rc6p_attr_group);
-#endif
 }
diff --git a/drivers/gpu/drm/i915/i915_sysfs.h b/drivers/gpu/drm/i915/i915_sysfs.h
index 41afd4366416..243a17741e3f 100644
--- a/drivers/gpu/drm/i915/i915_sysfs.h
+++ b/drivers/gpu/drm/i915/i915_sysfs.h
@@ -6,8 +6,11 @@
 #ifndef __I915_SYSFS_H__
 #define __I915_SYSFS_H__
 
+struct device;
 struct drm_i915_private;
 
+struct drm_i915_private *kdev_minor_to_i915(struct device *kdev);
+
 void i915_setup_sysfs(struct drm_i915_private *i915);
 void i915_teardown_sysfs(struct drm_i915_private *i915);
 
-- 
2.34.1

[Intel-gfx] [PATCH v2 2/2] drm/i915/gt: make a gt sysfs group and move power management files

[Andi Shyti]

The GT has its own properties and in sysfs they should be grouped
in the 'gt/' directory.

Create a 'gt/' directory in sysfs which will contain gt0...gtN
directories related to each tile configured in the GPU. Move the
power management files inside those directories.

The previous power management files are kept in their original
root directory to avoid breaking the ABI. They point to the tile
'0' and a warning message is printed whenever accessed to. The
deprecated interface needs for the CONFIG_SYSFS_DEPRECATED_V2
flag in order to be generated.

The new sysfs structure will have a similar layout for the 4 tile
case:

/sys/.../card0
         ├── gt
         │   ├── gt0
         │   │   ├── id
         │   │   ├── rc6_enable
         │   │   ├── rc6_residency_ms
         │   │   ├── rps_act_freq_mhz
         │   │   ├── rps_boost_freq_mhz
         │   │   ├── rps_cur_freq_mhz
         │   │   ├── rps_max_freq_mhz
         │   │   ├── rps_min_freq_mhz
         │   │   ├── rps_RP0_freq_mhz
         │   │   ├── rps_RP1_freq_mhz
         │   │   └── rps_RPn_freq_mhz
	 .   .
	 .   .
	 .   .
         │   └── gt3
         │       ├── id
         │       ├── rc6_enable
         │       ├── rc6_residency_ms
         │       ├── rps_act_freq_mhz
         │       ├── rps_boost_freq_mhz
         │       ├── rps_cur_freq_mhz
         │       ├── rps_max_freq_mhz
         │       ├── rps_min_freq_mhz
         │       ├── rps_RP0_freq_mhz
         │       ├── rps_RP1_freq_mhz
         │       └── rps_RPn_freq_mhz
         ├── gt_act_freq_mhz   -+
         ├── gt_boost_freq_mhz  |
         ├── gt_cur_freq_mhz    |    Original interface
         ├── gt_max_freq_mhz    +─-> kept as existing ABI;
         ├── gt_min_freq_mhz    |    it points to gt0/
         ├── gt_RP0_freq_mhz    |
         └── gt_RP1_freq_mhz    |
         └── gt_RPn_freq_mhz   -+

Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
 drivers/gpu/drm/i915/Makefile         |   4 +-
 drivers/gpu/drm/i915/gt/intel_gt.c    |   2 +
 drivers/gpu/drm/i915/gt/sysfs_gt.c    | 126 +++++++++
 drivers/gpu/drm/i915/gt/sysfs_gt.h    |  44 +++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c | 393 ++++++++++++++++++++++++++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h |  16 ++
 drivers/gpu/drm/i915/i915_drv.h       |   2 +
 drivers/gpu/drm/i915/i915_reg.h       |   1 +
 drivers/gpu/drm/i915/i915_sysfs.c     | 315 +--------------------
 drivers/gpu/drm/i915/i915_sysfs.h     |   3 +
 10 files changed, 600 insertions(+), 306 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.h
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index aa86ac33effc..5fd203c626fc 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -121,7 +121,9 @@ gt-y += \
 	gt/intel_timeline.o \
 	gt/intel_workarounds.o \
 	gt/shmem_utils.o \
-	gt/sysfs_engines.o
+	gt/sysfs_engines.o \
+	gt/sysfs_gt.o \
+	gt/sysfs_gt_pm.o
 # autogenerated null render state
 gt-y += \
 	gt/gen6_renderstate.o \
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 17927da9e23e..2584c51c1c14 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -25,6 +25,7 @@
 #include "intel_rps.h"
 #include "intel_uncore.h"
 #include "shmem_utils.h"
+#include "sysfs_gt.h"
 #include "pxp/intel_pxp.h"
 
 static void
@@ -453,6 +454,7 @@ void intel_gt_driver_register(struct intel_gt *gt)
 	intel_rps_driver_register(&gt->rps);
 
 	intel_gt_debugfs_register(gt);
+	intel_gt_sysfs_register(gt);
 }
 
 static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size)
diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt.c b/drivers/gpu/drm/i915/gt/sysfs_gt.c
new file mode 100644
index 000000000000..46cf033a53ec
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/sysfs_gt.c
@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#include <drm/drm_device.h>
+#include <linux/device.h>
+#include <linux/kobject.h>
+#include <linux/printk.h>
+#include <linux/sysfs.h>
+
+#include "i915_drv.h"
+#include "i915_sysfs.h"
+#include "intel_gt.h"
+#include "intel_gt_types.h"
+#include "intel_rc6.h"
+
+#include "sysfs_gt.h"
+#include "sysfs_gt_pm.h"
+
+struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev,
+					    const char *name)
+{
+	struct kobject *kobj = &dev->kobj;
+
+	/*
+	 * We are interested at knowing from where the interface
+	 * has been called, whether it's called from gt/ or from
+	 * the parent directory.
+	 * From the interface position it depends also the value of
+	 * the private data.
+	 * If the interface is called from gt/ then private data is
+	 * of the "struct intel_gt *" type, otherwise it's * a
+	 * "struct drm_i915_private *" type.
+	 */
+	if (!is_object_gt(kobj)) {
+		struct drm_i915_private *i915 = kdev_minor_to_i915(dev);
+
+		pr_devel_ratelimited(DEPRECATED
+			"%s (pid %d) is trying to access deprecated %s "
+			"sysfs control, please use gt/gt<n>/%s instead\n",
+			current->comm, task_pid_nr(current), name, name);
+		return to_gt(i915);
+	}
+
+	return kobj_to_gt(kobj);
+}
+
+static struct kobject *gt_get_parent_obj(struct intel_gt *gt)
+{
+	return &gt->i915->drm.primary->kdev->kobj;
+}
+
+static ssize_t id_show(struct device *dev,
+		       struct device_attribute *attr,
+		       char *buf)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+
+	return sysfs_emit(buf, "%u\n", gt->info.id);
+}
+
+static DEVICE_ATTR_RO(id);
+
+static void kobj_gt_release(struct kobject *kobj)
+{
+	kfree(kobj);
+}
+
+static struct kobj_type kobj_gt_type = {
+	.release = kobj_gt_release,
+	.sysfs_ops = &kobj_sysfs_ops
+};
+
+struct kobject *
+intel_gt_create_kobj(struct intel_gt *gt, struct kobject *dir, const char *name)
+{
+	struct kobj_gt *kg;
+
+	kg = kzalloc(sizeof(*kg), GFP_KERNEL);
+	if (!kg)
+		return NULL;
+
+	kobject_init(&kg->base, &kobj_gt_type);
+	kg->gt = gt;
+
+	/* xfer ownership to sysfs tree */
+	if (kobject_add(&kg->base, dir, "%s", name)) {
+		kobject_put(&kg->base);
+		return NULL;
+	}
+
+	return &kg->base; /* borrowed ref */
+}
+
+void intel_gt_sysfs_register(struct intel_gt *gt)
+{
+	struct kobject *dir;
+	char name[80];
+
+	/*
+	 * We need to make things right with the
+	 * ABI compatibility. The files were originally
+	 * generated under the parent directory.
+	 *
+	 * We generate the files only for gt 0
+	 * to avoid duplicates.
+	 */
+	if (!gt->info.id)
+		intel_gt_sysfs_pm_init(gt, gt_get_parent_obj(gt));
+
+	snprintf(name, sizeof(name), "gt%d", gt->info.id);
+
+	dir = intel_gt_create_kobj(gt, gt->i915->sysfs_gt, name);
+	if (!dir) {
+		drm_err(&gt->i915->drm,
+			"failed to initialize %s sysfs root\n", name);
+		return;
+	}
+
+	if (sysfs_create_file(dir, &dev_attr_id.attr))
+		drm_err(&gt->i915->drm,
+			"failed to create sysfs %s info files\n", name);
+
+	intel_gt_sysfs_pm_init(gt, dir);
+}
diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt.h b/drivers/gpu/drm/i915/gt/sysfs_gt.h
new file mode 100644
index 000000000000..cd80a14bb14d
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/sysfs_gt.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#ifndef __SYSFS_GT_H__
+#define __SYSFS_GT_H__
+
+#include <linux/ctype.h>
+#include <linux/kobject.h>
+
+#include "i915_gem.h" /* GEM_BUG_ON() */
+
+struct intel_gt;
+
+struct kobj_gt {
+	struct kobject base;
+	struct intel_gt *gt;
+};
+
+static inline bool is_object_gt(struct kobject *kobj)
+{
+	bool b = !strncmp(kobj->name, "gt", 2);
+
+	GEM_BUG_ON(b && !isdigit(kobj->name[2]));
+
+	return b;
+}
+
+struct kobject *
+intel_gt_create_kobj(struct intel_gt *gt,
+		     struct kobject *dir,
+		     const char *name);
+
+static inline struct intel_gt *kobj_to_gt(struct kobject *kobj)
+{
+	return container_of(kobj, struct kobj_gt, base)->gt;
+}
+
+void intel_gt_sysfs_register(struct intel_gt *gt);
+struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev,
+					    const char *name);
+
+#endif /* SYSFS_GT_H */
diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
new file mode 100644
index 000000000000..6f4424be42d1
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
@@ -0,0 +1,393 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#include <drm/drm_device.h>
+#include <linux/sysfs.h>
+#include <linux/printk.h>
+
+#include "i915_drv.h"
+#include "intel_gt.h"
+#include "intel_rc6.h"
+#include "intel_rps.h"
+#include "sysfs_gt.h"
+#include "sysfs_gt_pm.h"
+
+#ifdef CONFIG_PM
+static u32 get_residency(struct intel_gt *gt, i915_reg_t reg)
+{
+	intel_wakeref_t wakeref;
+	u64 res = 0;
+
+	with_intel_runtime_pm(gt->uncore->rpm, wakeref)
+		res = intel_rc6_residency_us(&gt->rc6, reg);
+
+	return DIV_ROUND_CLOSEST_ULL(res, 1000);
+}
+
+static ssize_t rc6_enable_show(struct device *dev,
+			       struct device_attribute *attr,
+			       char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	u8 mask = 0;
+
+	if (HAS_RC6(gt->i915))
+		mask |= BIT(0);
+	if (HAS_RC6p(gt->i915))
+		mask |= BIT(1);
+	if (HAS_RC6pp(gt->i915))
+		mask |= BIT(2);
+
+	return scnprintf(buff, PAGE_SIZE, "%x\n", mask);
+}
+
+static ssize_t rc6_residency_ms_show(struct device *dev,
+				     struct device_attribute *attr,
+				     char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	u32 rc6_residency = get_residency(gt, GEN6_GT_GFX_RC6);
+
+	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6_residency);
+}
+
+static ssize_t rc6p_residency_ms_show(struct device *dev,
+				      struct device_attribute *attr,
+				      char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	u32 rc6p_residency = get_residency(gt, GEN6_GT_GFX_RC6p);
+
+	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6p_residency);
+}
+
+static ssize_t rc6pp_residency_ms_show(struct device *dev,
+				       struct device_attribute *attr,
+				       char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	u32 rc6pp_residency = get_residency(gt, GEN6_GT_GFX_RC6pp);
+
+	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6pp_residency);
+}
+
+static ssize_t media_rc6_residency_ms_show(struct device *dev,
+					   struct device_attribute *attr,
+					   char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	u32 rc6_residency = get_residency(gt, VLV_GT_MEDIA_RC6);
+
+	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6_residency);
+}
+
+static DEVICE_ATTR_RO(rc6_enable);
+static DEVICE_ATTR_RO(rc6_residency_ms);
+static DEVICE_ATTR_RO(rc6p_residency_ms);
+static DEVICE_ATTR_RO(rc6pp_residency_ms);
+static DEVICE_ATTR_RO(media_rc6_residency_ms);
+
+static struct attribute *rc6_attrs[] = {
+	&dev_attr_rc6_enable.attr,
+	&dev_attr_rc6_residency_ms.attr,
+	NULL
+};
+
+static struct attribute *rc6p_attrs[] = {
+	&dev_attr_rc6p_residency_ms.attr,
+	&dev_attr_rc6pp_residency_ms.attr,
+	NULL
+};
+
+static struct attribute *media_rc6_attrs[] = {
+	&dev_attr_media_rc6_residency_ms.attr,
+	NULL
+};
+
+static const struct attribute_group rc6_attr_group[] = {
+	{ .name = power_group_name, .attrs = rc6_attrs },
+	{ .attrs = rc6_attrs }
+};
+
+static const struct attribute_group rc6p_attr_group[] = {
+	{ .name = power_group_name, .attrs = rc6p_attrs },
+	{ .attrs = rc6p_attrs }
+};
+
+static const struct attribute_group media_rc6_attr_group[] = {
+	{ .name = power_group_name, .attrs = media_rc6_attrs },
+	{ .attrs = media_rc6_attrs }
+};
+
+static int __intel_gt_sysfs_create_group(struct kobject *kobj,
+					 const struct attribute_group *grp)
+{
+	int i = is_object_gt(kobj);
+
+	return i ? sysfs_create_group(kobj, &grp[i]) :
+		   sysfs_merge_group(kobj, &grp[i]);
+}
+
+static void intel_sysfs_rc6_init(struct intel_gt *gt, struct kobject *kobj)
+{
+	int ret;
+
+	if (!HAS_RC6(gt->i915))
+		return;
+
+	ret = __intel_gt_sysfs_create_group(kobj, rc6_attr_group);
+	if (ret)
+		drm_err(&gt->i915->drm,
+			"failed to create gt%u RC6 sysfs files\n", gt->info.id);
+
+	if (HAS_RC6p(gt->i915)) {
+		ret = __intel_gt_sysfs_create_group(kobj, rc6p_attr_group);
+		if (ret)
+			drm_err(&gt->i915->drm,
+				"failed to create gt%u RC6p sysfs files\n",
+				gt->info.id);
+	}
+
+	if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915)) {
+		ret = __intel_gt_sysfs_create_group(kobj, media_rc6_attr_group);
+		if (ret)
+			drm_err(&gt->i915->drm,
+				"failed to create media %u RC6 sysfs files\n",
+				gt->info.id);
+	}
+}
+#else
+static void intel_sysfs_rc6_init(struct intel_gt *gt, struct kobject *kobj)
+{
+}
+#endif /* CONFIG_PM */
+
+static ssize_t act_freq_mhz_show(struct device *dev,
+				 struct device_attribute *attr, char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+
+	return scnprintf(buff, PAGE_SIZE, "%d\n",
+			intel_rps_read_actual_frequency(&gt->rps));
+}
+
+static ssize_t cur_freq_mhz_show(struct device *dev,
+				 struct device_attribute *attr, char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+
+	return scnprintf(buff, PAGE_SIZE, "%d\n",
+			 intel_rps_get_requested_frequency(rps));
+}
+
+static ssize_t boost_freq_mhz_show(struct device *dev,
+				   struct device_attribute *attr,
+				   char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+
+	return scnprintf(buff, PAGE_SIZE, "%d\n",
+			 intel_rps_get_boost_frequency(rps));
+}
+
+static ssize_t boost_freq_mhz_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buff, size_t count)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+	bool boost = false;
+	ssize_t ret;
+	u32 val;
+
+	ret = kstrtou32(buff, 0, &val);
+	if (ret)
+		return ret;
+
+	/* Validate against (static) hardware limits */
+	val = intel_freq_opcode(rps, val);
+	if (val < rps->min_freq || val > rps->max_freq)
+		return -EINVAL;
+
+	mutex_lock(&rps->lock);
+	if (val != rps->boost_freq) {
+		rps->boost_freq = val;
+		boost = atomic_read(&rps->num_waiters);
+	}
+	mutex_unlock(&rps->lock);
+	if (boost)
+		schedule_work(&rps->work);
+
+	return count;
+}
+
+static ssize_t vlv_rpe_freq_mhz_show(struct device *dev,
+				     struct device_attribute *attr, char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+
+	return scnprintf(buff, PAGE_SIZE, "%d\n",
+			intel_gpu_freq(rps, rps->efficient_freq));
+}
+
+static ssize_t max_freq_mhz_show(struct device *dev,
+				 struct device_attribute *attr,
+				 char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+
+	return sysfs_emit(buff, "%d\n", intel_rps_get_max_frequency(rps));
+}
+
+static ssize_t max_freq_mhz_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buff, size_t count)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+	ssize_t ret;
+	u32 val;
+
+	ret = kstrtou32(buff, 0, &val);
+	if (ret)
+		return ret;
+
+	ret = intel_rps_set_max_frequency(rps, val);
+
+	return ret ?: count;
+}
+
+static ssize_t min_freq_mhz_show(struct device *dev,
+				 struct device_attribute *attr,
+				 char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+
+	return sysfs_emit(buff, "%d\n", intel_rps_get_min_frequency(rps));
+}
+
+static ssize_t min_freq_mhz_store(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buff, size_t count)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+	ssize_t ret;
+	u32 val;
+
+	ret = kstrtou32(buff, 0, &val);
+	if (ret)
+		return ret;
+
+	ret = intel_rps_set_min_frequency(rps, val);
+
+	return ret ?: count;
+}
+
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)
+
+#define INTEL_GT_RPS_SYSFS_ATTR_RO(_name)				\
+		INTEL_GT_RPS_SYSFS_ATTR(_name, 0444, _name##_show, NULL)
+#define INTEL_GT_RPS_SYSFS_ATTR_RW(_name)				\
+		INTEL_GT_RPS_SYSFS_ATTR(_name, 0644, _name##_show, _name##_store)
+
+static INTEL_GT_RPS_SYSFS_ATTR_RO(act_freq_mhz);
+static INTEL_GT_RPS_SYSFS_ATTR_RO(cur_freq_mhz);
+static INTEL_GT_RPS_SYSFS_ATTR_RW(boost_freq_mhz);
+static INTEL_GT_RPS_SYSFS_ATTR_RW(max_freq_mhz);
+static INTEL_GT_RPS_SYSFS_ATTR_RW(min_freq_mhz);
+
+static DEVICE_ATTR_RO(vlv_rpe_freq_mhz);
+
+static ssize_t rps_rp_mhz_show(struct device *dev,
+			       struct device_attribute *attr,
+			       char *buff);
+
+static INTEL_GT_RPS_SYSFS_ATTR(RP0_freq_mhz, 0444, rps_rp_mhz_show, NULL);
+static INTEL_GT_RPS_SYSFS_ATTR(RP1_freq_mhz, 0444, rps_rp_mhz_show, NULL);
+static INTEL_GT_RPS_SYSFS_ATTR(RPn_freq_mhz, 0444, rps_rp_mhz_show, NULL);
+
+#define GEN6_ATTR(s) { \
+		&dev_attr_##s##_act_freq_mhz.attr, \
+		&dev_attr_##s##_cur_freq_mhz.attr, \
+		&dev_attr_##s##_boost_freq_mhz.attr, \
+		&dev_attr_##s##_max_freq_mhz.attr, \
+		&dev_attr_##s##_min_freq_mhz.attr, \
+		&dev_attr_##s##_RP0_freq_mhz.attr, \
+		&dev_attr_##s##_RP1_freq_mhz.attr, \
+		&dev_attr_##s##_RPn_freq_mhz.attr, \
+		NULL, \
+	}
+
+#define GEN6_RPS_ATTR GEN6_ATTR(rps)
+#define GEN6_GT_ATTR  GEN6_ATTR(gt)
+
+/* For now we have a static number of RP states */
+static ssize_t rps_rp_mhz_show(struct device *dev,
+			       struct device_attribute *attr,
+			       char *buff)
+{
+	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
+	struct intel_rps *rps = &gt->rps;
+	u32 val;
+
+	if (attr == &dev_attr_gt_RP0_freq_mhz ||
+	    attr == &dev_attr_rps_RP0_freq_mhz) {
+		val = intel_rps_get_rp0_frequency(rps);
+	} else if (attr == &dev_attr_gt_RP1_freq_mhz ||
+		   attr == &dev_attr_rps_RP1_freq_mhz) {
+		   val = intel_rps_get_rp1_frequency(rps);
+	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||
+		   attr == &dev_attr_rps_RPn_freq_mhz) {
+		   val = intel_rps_get_rpn_frequency(rps);
+	} else {
+		GEM_WARN_ON(1);
+		return -ENODEV;
+	}
+
+	return scnprintf(buff, PAGE_SIZE, "%d\n", val);
+}
+
+static const struct attribute * const gen6_rps_attrs[] = GEN6_RPS_ATTR;
+static const struct attribute * const gen6_gt_attrs[]  = GEN6_GT_ATTR;
+
+static int intel_sysfs_rps_init(struct intel_gt *gt, struct kobject *kobj,
+				const struct attribute * const *attrs)
+{
+	int ret;
+
+	if (GRAPHICS_VER(gt->i915) < 6)
+		return 0;
+
+	ret = sysfs_create_files(kobj, attrs);
+	if (ret)
+		return ret;
+
+	if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915))
+		ret = sysfs_create_file(kobj, &dev_attr_vlv_rpe_freq_mhz.attr);
+
+	return ret;
+}
+
+void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj)
+{
+	int ret;
+
+	intel_sysfs_rc6_init(gt, kobj);
+
+	ret = is_object_gt(kobj) ?
+	      intel_sysfs_rps_init(gt, kobj, gen6_rps_attrs) :
+	      intel_sysfs_rps_init(gt, kobj, gen6_gt_attrs);
+	if (ret)
+		drm_err(&gt->i915->drm,
+			"failed to create gt%u RPS sysfs files", gt->info.id);
+}
diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
new file mode 100644
index 000000000000..18c60d929e6d
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#ifndef __SYSFS_GT_PM_H__
+#define __SYSFS_GT_PM_H__
+
+#include <linux/kobject.h>
+
+#include "intel_gt_types.h"
+
+void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj);
+void intel_gt_sysfs_pm_remove(struct intel_gt *gt, struct kobject *kobj);
+
+#endif /* SYSFS_RC6_H */
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 14dbbc5ba9e4..595e2f41ba43 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -997,6 +997,8 @@ struct drm_i915_private {
 #define I915_MAX_GT 4
 	struct intel_gt *gt[I915_MAX_GT];
 
+	struct kobject *sysfs_gt;
+
 	struct {
 		struct i915_gem_contexts {
 			spinlock_t lock; /* locks list */
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 7c4013a0db61..12b2018e2407 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -8480,6 +8480,7 @@ enum {
 #define   GEN6_AGGRESSIVE_TURBO			(0 << 15)
 #define   GEN9_SW_REQ_UNSLICE_RATIO_SHIFT	23
 #define   GEN9_IGNORE_SLICE_RATIO		(0 << 0)
+#define   GEN12_SW_REQ_UNSLICE_RATIO_SHIFT	23
 
 #define GEN6_RC_VIDEO_FREQ			_MMIO(0xA00C)
 #define GEN6_RC_CONTROL				_MMIO(0xA090)
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
index fae4d1f4f275..d6687e33f29d 100644
--- a/drivers/gpu/drm/i915/i915_sysfs.c
+++ b/drivers/gpu/drm/i915/i915_sysfs.c
@@ -38,113 +38,12 @@
 #include "i915_sysfs.h"
 #include "intel_pm.h"
 
-static inline struct drm_i915_private *kdev_minor_to_i915(struct device *kdev)
+struct drm_i915_private *kdev_minor_to_i915(struct device *kdev)
 {
 	struct drm_minor *minor = dev_get_drvdata(kdev);
 	return to_i915(minor->dev);
 }
 
-#ifdef CONFIG_PM
-static u32 calc_residency(struct drm_i915_private *dev_priv,
-			  i915_reg_t reg)
-{
-	intel_wakeref_t wakeref;
-	u64 res = 0;
-
-	with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref)
-		res = intel_rc6_residency_us(&to_gt(dev_priv)->rc6, reg);
-
-	return DIV_ROUND_CLOSEST_ULL(res, 1000);
-}
-
-static ssize_t rc6_enable_show(struct device *kdev,
-			       struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	unsigned int mask;
-
-	mask = 0;
-	if (HAS_RC6(dev_priv))
-		mask |= BIT(0);
-	if (HAS_RC6p(dev_priv))
-		mask |= BIT(1);
-	if (HAS_RC6pp(dev_priv))
-		mask |= BIT(2);
-
-	return sysfs_emit(buf, "%x\n", mask);
-}
-
-static ssize_t rc6_residency_ms_show(struct device *kdev,
-				     struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	u32 rc6_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6);
-	return sysfs_emit(buf, "%u\n", rc6_residency);
-}
-
-static ssize_t rc6p_residency_ms_show(struct device *kdev,
-				      struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	u32 rc6p_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6p);
-	return sysfs_emit(buf, "%u\n", rc6p_residency);
-}
-
-static ssize_t rc6pp_residency_ms_show(struct device *kdev,
-				       struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	u32 rc6pp_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6pp);
-	return sysfs_emit(buf, "%u\n", rc6pp_residency);
-}
-
-static ssize_t media_rc6_residency_ms_show(struct device *kdev,
-					   struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	u32 rc6_residency = calc_residency(dev_priv, VLV_GT_MEDIA_RC6);
-	return sysfs_emit(buf, "%u\n", rc6_residency);
-}
-
-static DEVICE_ATTR_RO(rc6_enable);
-static DEVICE_ATTR_RO(rc6_residency_ms);
-static DEVICE_ATTR_RO(rc6p_residency_ms);
-static DEVICE_ATTR_RO(rc6pp_residency_ms);
-static DEVICE_ATTR_RO(media_rc6_residency_ms);
-
-static struct attribute *rc6_attrs[] = {
-	&dev_attr_rc6_enable.attr,
-	&dev_attr_rc6_residency_ms.attr,
-	NULL
-};
-
-static const struct attribute_group rc6_attr_group = {
-	.name = power_group_name,
-	.attrs =  rc6_attrs
-};
-
-static struct attribute *rc6p_attrs[] = {
-	&dev_attr_rc6p_residency_ms.attr,
-	&dev_attr_rc6pp_residency_ms.attr,
-	NULL
-};
-
-static const struct attribute_group rc6p_attr_group = {
-	.name = power_group_name,
-	.attrs =  rc6p_attrs
-};
-
-static struct attribute *media_rc6_attrs[] = {
-	&dev_attr_media_rc6_residency_ms.attr,
-	NULL
-};
-
-static const struct attribute_group media_rc6_attr_group = {
-	.name = power_group_name,
-	.attrs =  media_rc6_attrs
-};
-#endif
-
 static int l3_access_valid(struct drm_i915_private *i915, loff_t offset)
 {
 	if (!HAS_L3_DPF(i915))
@@ -256,171 +155,6 @@ static const struct bin_attribute dpf_attrs_1 = {
 	.private = (void *)1
 };
 
-static ssize_t gt_act_freq_mhz_show(struct device *kdev,
-				    struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &to_gt(i915)->rps;
-
-	return sysfs_emit(buf, "%d\n", intel_rps_read_actual_frequency(rps));
-}
-
-static ssize_t gt_cur_freq_mhz_show(struct device *kdev,
-				    struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &to_gt(i915)->rps;
-
-	return sysfs_emit(buf, "%d\n", intel_rps_get_requested_frequency(rps));
-}
-
-static ssize_t gt_boost_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &to_gt(i915)->rps;
-
-	return sysfs_emit(buf, "%d\n", intel_rps_get_boost_frequency(rps));
-}
-
-static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
-				       struct device_attribute *attr,
-				       const char *buf, size_t count)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &to_gt(dev_priv)->rps;
-	ssize_t ret;
-	u32 val;
-
-	ret = kstrtou32(buf, 0, &val);
-	if (ret)
-		return ret;
-
-	ret = intel_rps_set_boost_frequency(rps, val);
-
-	return ret ?: count;
-}
-
-static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev,
-				     struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &to_gt(dev_priv)->rps;
-
-	return sysfs_emit(buf, "%d\n", intel_gpu_freq(rps, rps->efficient_freq));
-}
-
-static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_gt *gt = to_gt(dev_priv);
-	struct intel_rps *rps = &gt->rps;
-
-	return sysfs_emit(buf, "%d\n", intel_rps_get_max_frequency(rps));
-}
-
-static ssize_t gt_max_freq_mhz_store(struct device *kdev,
-				     struct device_attribute *attr,
-				     const char *buf, size_t count)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_gt *gt = to_gt(dev_priv);
-	struct intel_rps *rps = &gt->rps;
-	ssize_t ret;
-	u32 val;
-
-	ret = kstrtou32(buf, 0, &val);
-	if (ret)
-		return ret;
-
-	ret = intel_rps_set_max_frequency(rps, val);
-
-	return ret ?: count;
-}
-
-static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
-	struct intel_gt *gt = to_gt(i915);
-	struct intel_rps *rps = &gt->rps;
-
-	return sysfs_emit(buf, "%d\n", intel_rps_get_min_frequency(rps));
-}
-
-static ssize_t gt_min_freq_mhz_store(struct device *kdev,
-				     struct device_attribute *attr,
-				     const char *buf, size_t count)
-{
-	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &to_gt(i915)->rps;
-	ssize_t ret;
-	u32 val;
-
-	ret = kstrtou32(buf, 0, &val);
-	if (ret)
-		return ret;
-
-	ret = intel_rps_set_min_frequency(rps, val);
-
-	return ret ?: count;
-}
-
-static DEVICE_ATTR_RO(gt_act_freq_mhz);
-static DEVICE_ATTR_RO(gt_cur_freq_mhz);
-static DEVICE_ATTR_RW(gt_boost_freq_mhz);
-static DEVICE_ATTR_RW(gt_max_freq_mhz);
-static DEVICE_ATTR_RW(gt_min_freq_mhz);
-
-static DEVICE_ATTR_RO(vlv_rpe_freq_mhz);
-
-static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf);
-static DEVICE_ATTR(gt_RP0_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
-static DEVICE_ATTR(gt_RP1_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
-static DEVICE_ATTR(gt_RPn_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
-
-/* For now we have a static number of RP states */
-static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
-{
-	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
-	struct intel_rps *rps = &to_gt(dev_priv)->rps;
-	u32 val;
-
-	if (attr == &dev_attr_gt_RP0_freq_mhz)
-		val = intel_rps_get_rp0_frequency(rps);
-	else if (attr == &dev_attr_gt_RP1_freq_mhz)
-		val = intel_rps_get_rp1_frequency(rps);
-	else if (attr == &dev_attr_gt_RPn_freq_mhz)
-		val = intel_rps_get_rpn_frequency(rps);
-	else
-		BUG();
-
-	return sysfs_emit(buf, "%d\n", val);
-}
-
-static const struct attribute * const gen6_attrs[] = {
-	&dev_attr_gt_act_freq_mhz.attr,
-	&dev_attr_gt_cur_freq_mhz.attr,
-	&dev_attr_gt_boost_freq_mhz.attr,
-	&dev_attr_gt_max_freq_mhz.attr,
-	&dev_attr_gt_min_freq_mhz.attr,
-	&dev_attr_gt_RP0_freq_mhz.attr,
-	&dev_attr_gt_RP1_freq_mhz.attr,
-	&dev_attr_gt_RPn_freq_mhz.attr,
-	NULL,
-};
-
-static const struct attribute * const vlv_attrs[] = {
-	&dev_attr_gt_act_freq_mhz.attr,
-	&dev_attr_gt_cur_freq_mhz.attr,
-	&dev_attr_gt_boost_freq_mhz.attr,
-	&dev_attr_gt_max_freq_mhz.attr,
-	&dev_attr_gt_min_freq_mhz.attr,
-	&dev_attr_gt_RP0_freq_mhz.attr,
-	&dev_attr_gt_RP1_freq_mhz.attr,
-	&dev_attr_gt_RPn_freq_mhz.attr,
-	&dev_attr_vlv_rpe_freq_mhz.attr,
-	NULL,
-};
-
 #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
 
 static ssize_t error_state_read(struct file *filp, struct kobject *kobj,
@@ -486,34 +220,16 @@ static void i915_setup_error_capture(struct device *kdev) {}
 static void i915_teardown_error_capture(struct device *kdev) {}
 #endif
 
+static struct kobject *i915_setup_gt_sysfs(struct kobject *parent)
+{
+	return kobject_create_and_add("gt", parent);
+}
+
 void i915_setup_sysfs(struct drm_i915_private *dev_priv)
 {
 	struct device *kdev = dev_priv->drm.primary->kdev;
 	int ret;
 
-#ifdef CONFIG_PM
-	if (HAS_RC6(dev_priv)) {
-		ret = sysfs_merge_group(&kdev->kobj,
-					&rc6_attr_group);
-		if (ret)
-			drm_err(&dev_priv->drm,
-				"RC6 residency sysfs setup failed\n");
-	}
-	if (HAS_RC6p(dev_priv)) {
-		ret = sysfs_merge_group(&kdev->kobj,
-					&rc6p_attr_group);
-		if (ret)
-			drm_err(&dev_priv->drm,
-				"RC6p residency sysfs setup failed\n");
-	}
-	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
-		ret = sysfs_merge_group(&kdev->kobj,
-					&media_rc6_attr_group);
-		if (ret)
-			drm_err(&dev_priv->drm,
-				"Media RC6 residency sysfs setup failed\n");
-	}
-#endif
 	if (HAS_L3_DPF(dev_priv)) {
 		ret = device_create_bin_file(kdev, &dpf_attrs);
 		if (ret)
@@ -529,13 +245,10 @@ void i915_setup_sysfs(struct drm_i915_private *dev_priv)
 		}
 	}
 
-	ret = 0;
-	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
-		ret = sysfs_create_files(&kdev->kobj, vlv_attrs);
-	else if (GRAPHICS_VER(dev_priv) >= 6)
-		ret = sysfs_create_files(&kdev->kobj, gen6_attrs);
-	if (ret)
-		drm_err(&dev_priv->drm, "RPS sysfs setup failed\n");
+	dev_priv->sysfs_gt = i915_setup_gt_sysfs(&kdev->kobj);
+	if (!dev_priv->sysfs_gt)
+		drm_err(&dev_priv->drm,
+			"failed to register GT sysfs directory\n");
 
 	i915_setup_error_capture(kdev);
 
@@ -548,14 +261,6 @@ void i915_teardown_sysfs(struct drm_i915_private *dev_priv)
 
 	i915_teardown_error_capture(kdev);
 
-	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
-		sysfs_remove_files(&kdev->kobj, vlv_attrs);
-	else
-		sysfs_remove_files(&kdev->kobj, gen6_attrs);
 	device_remove_bin_file(kdev,  &dpf_attrs_1);
 	device_remove_bin_file(kdev,  &dpf_attrs);
-#ifdef CONFIG_PM
-	sysfs_unmerge_group(&kdev->kobj, &rc6_attr_group);
-	sysfs_unmerge_group(&kdev->kobj, &rc6p_attr_group);
-#endif
 }
diff --git a/drivers/gpu/drm/i915/i915_sysfs.h b/drivers/gpu/drm/i915/i915_sysfs.h
index 41afd4366416..243a17741e3f 100644
--- a/drivers/gpu/drm/i915/i915_sysfs.h
+++ b/drivers/gpu/drm/i915/i915_sysfs.h
@@ -6,8 +6,11 @@
 #ifndef __I915_SYSFS_H__
 #define __I915_SYSFS_H__
 
+struct device;
 struct drm_i915_private;
 
+struct drm_i915_private *kdev_minor_to_i915(struct device *kdev);
+
 void i915_setup_sysfs(struct drm_i915_private *i915);
 void i915_teardown_sysfs(struct drm_i915_private *i915);
 
-- 
2.34.1

Re: [PATCH v2 2/2] drm/i915/gt: make a gt sysfs group and move power management files

[Sundaresan, Sujaritha]

On 1/12/2022 2:20 PM, Andi Shyti wrote:
> The GT has its own properties and in sysfs they should be grouped
> in the 'gt/' directory.
>
> Create a 'gt/' directory in sysfs which will contain gt0...gtN
> directories related to each tile configured in the GPU. Move the
> power management files inside those directories.
>
> The previous power management files are kept in their original
> root directory to avoid breaking the ABI. They point to the tile
> '0' and a warning message is printed whenever accessed to. The
> deprecated interface needs for the CONFIG_SYSFS_DEPRECATED_V2
> flag in order to be generated.
>
> The new sysfs structure will have a similar layout for the 4 tile
> case:
>
> /sys/.../card0
>           ├── gt
>           │   ├── gt0
>           │   │   ├── id
>           │   │   ├── rc6_enable
>           │   │   ├── rc6_residency_ms
>           │   │   ├── rps_act_freq_mhz
>           │   │   ├── rps_boost_freq_mhz
>           │   │   ├── rps_cur_freq_mhz
>           │   │   ├── rps_max_freq_mhz
>           │   │   ├── rps_min_freq_mhz
>           │   │   ├── rps_RP0_freq_mhz
>           │   │   ├── rps_RP1_freq_mhz
>           │   │   └── rps_RPn_freq_mhz
> 	 .   .
> 	 .   .
> 	 .   .
>           │   └── gt3
>           │       ├── id
>           │       ├── rc6_enable
>           │       ├── rc6_residency_ms
>           │       ├── rps_act_freq_mhz
>           │       ├── rps_boost_freq_mhz
>           │       ├── rps_cur_freq_mhz
>           │       ├── rps_max_freq_mhz
>           │       ├── rps_min_freq_mhz
>           │       ├── rps_RP0_freq_mhz
>           │       ├── rps_RP1_freq_mhz
>           │       └── rps_RPn_freq_mhz
>           ├── gt_act_freq_mhz   -+
>           ├── gt_boost_freq_mhz  |
>           ├── gt_cur_freq_mhz    |    Original interface
>           ├── gt_max_freq_mhz    +─-> kept as existing ABI;
>           ├── gt_min_freq_mhz    |    it points to gt0/
>           ├── gt_RP0_freq_mhz    |
>           └── gt_RP1_freq_mhz    |
>           └── gt_RPn_freq_mhz   -+
>
> Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
> Cc: Matt Roper <matthew.d.roper@intel.com>
> Cc: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> ---
>   drivers/gpu/drm/i915/Makefile         |   4 +-
>   drivers/gpu/drm/i915/gt/intel_gt.c    |   2 +
>   drivers/gpu/drm/i915/gt/sysfs_gt.c    | 126 +++++++++
>   drivers/gpu/drm/i915/gt/sysfs_gt.h    |  44 +++
>   drivers/gpu/drm/i915/gt/sysfs_gt_pm.c | 393 ++++++++++++++++++++++++++
>   drivers/gpu/drm/i915/gt/sysfs_gt_pm.h |  16 ++
>   drivers/gpu/drm/i915/i915_drv.h       |   2 +
>   drivers/gpu/drm/i915/i915_reg.h       |   1 +
>   drivers/gpu/drm/i915/i915_sysfs.c     | 315 +--------------------
>   drivers/gpu/drm/i915/i915_sysfs.h     |   3 +
>   10 files changed, 600 insertions(+), 306 deletions(-)
>   create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.c
>   create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.h
>   create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
>   create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
>
> diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
> index aa86ac33effc..5fd203c626fc 100644
> --- a/drivers/gpu/drm/i915/Makefile
> +++ b/drivers/gpu/drm/i915/Makefile
> @@ -121,7 +121,9 @@ gt-y += \
>   	gt/intel_timeline.o \
>   	gt/intel_workarounds.o \
>   	gt/shmem_utils.o \
> -	gt/sysfs_engines.o
> +	gt/sysfs_engines.o \
> +	gt/sysfs_gt.o \
> +	gt/sysfs_gt_pm.o
>   # autogenerated null render state
>   gt-y += \
>   	gt/gen6_renderstate.o \
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
> index 17927da9e23e..2584c51c1c14 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt.c
> +++ b/drivers/gpu/drm/i915/gt/intel_gt.c
> @@ -25,6 +25,7 @@
>   #include "intel_rps.h"
>   #include "intel_uncore.h"
>   #include "shmem_utils.h"
> +#include "sysfs_gt.h"
>   #include "pxp/intel_pxp.h"
>   
>   static void
> @@ -453,6 +454,7 @@ void intel_gt_driver_register(struct intel_gt *gt)
>   	intel_rps_driver_register(&gt->rps);
>   
>   	intel_gt_debugfs_register(gt);
> +	intel_gt_sysfs_register(gt);
>   }
>   
>   static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size)
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt.c b/drivers/gpu/drm/i915/gt/sysfs_gt.c
> new file mode 100644
> index 000000000000..46cf033a53ec
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt.c
> @@ -0,0 +1,126 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#include <drm/drm_device.h>
> +#include <linux/device.h>
> +#include <linux/kobject.h>
> +#include <linux/printk.h>
> +#include <linux/sysfs.h>
> +
> +#include "i915_drv.h"
> +#include "i915_sysfs.h"
> +#include "intel_gt.h"
> +#include "intel_gt_types.h"
> +#include "intel_rc6.h"
> +
> +#include "sysfs_gt.h"
> +#include "sysfs_gt_pm.h"
> +
> +struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev,
> +					    const char *name)
> +{
> +	struct kobject *kobj = &dev->kobj;
> +
> +	/*
> +	 * We are interested at knowing from where the interface
> +	 * has been called, whether it's called from gt/ or from
> +	 * the parent directory.
> +	 * From the interface position it depends also the value of
> +	 * the private data.
> +	 * If the interface is called from gt/ then private data is
> +	 * of the "struct intel_gt *" type, otherwise it's * a
> +	 * "struct drm_i915_private *" type.
> +	 */
> +	if (!is_object_gt(kobj)) {
> +		struct drm_i915_private *i915 = kdev_minor_to_i915(dev);
> +
> +		pr_devel_ratelimited(DEPRECATED
> +			"%s (pid %d) is trying to access deprecated %s "
> +			"sysfs control, please use gt/gt<n>/%s instead\n",
> +			current->comm, task_pid_nr(current), name, name);
> +		return to_gt(i915);
> +	}
> +
> +	return kobj_to_gt(kobj);
> +}
> +
> +static struct kobject *gt_get_parent_obj(struct intel_gt *gt)
> +{
> +	return &gt->i915->drm.primary->kdev->kobj;
> +}
> +
> +static ssize_t id_show(struct device *dev,
> +		       struct device_attribute *attr,
> +		       char *buf)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +
> +	return sysfs_emit(buf, "%u\n", gt->info.id);
> +}
> +
> +static DEVICE_ATTR_RO(id);
> +
> +static void kobj_gt_release(struct kobject *kobj)
> +{
> +	kfree(kobj);
> +}
> +
> +static struct kobj_type kobj_gt_type = {
> +	.release = kobj_gt_release,
> +	.sysfs_ops = &kobj_sysfs_ops
> +};
> +
> +struct kobject *
> +intel_gt_create_kobj(struct intel_gt *gt, struct kobject *dir, const char *name)
> +{
> +	struct kobj_gt *kg;
> +
> +	kg = kzalloc(sizeof(*kg), GFP_KERNEL);
> +	if (!kg)
> +		return NULL;
> +
> +	kobject_init(&kg->base, &kobj_gt_type);
> +	kg->gt = gt;
> +
> +	/* xfer ownership to sysfs tree */
> +	if (kobject_add(&kg->base, dir, "%s", name)) {
> +		kobject_put(&kg->base);
> +		return NULL;
> +	}
> +
> +	return &kg->base; /* borrowed ref */
> +}
> +
> +void intel_gt_sysfs_register(struct intel_gt *gt)
> +{
> +	struct kobject *dir;
> +	char name[80];
> +
> +	/*
> +	 * We need to make things right with the
> +	 * ABI compatibility. The files were originally
> +	 * generated under the parent directory.
> +	 *
> +	 * We generate the files only for gt 0
> +	 * to avoid duplicates.
> +	 */
> +	if (!gt->info.id)
> +		intel_gt_sysfs_pm_init(gt, gt_get_parent_obj(gt));
> +
> +	snprintf(name, sizeof(name), "gt%d", gt->info.id);
> +
> +	dir = intel_gt_create_kobj(gt, gt->i915->sysfs_gt, name);
> +	if (!dir) {
> +		drm_err(&gt->i915->drm,
> +			"failed to initialize %s sysfs root\n", name);
> +		return;
> +	}
> +
> +	if (sysfs_create_file(dir, &dev_attr_id.attr))
> +		drm_err(&gt->i915->drm,
> +			"failed to create sysfs %s info files\n", name);
> +
> +	intel_gt_sysfs_pm_init(gt, dir);
> +}
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt.h b/drivers/gpu/drm/i915/gt/sysfs_gt.h
> new file mode 100644
> index 000000000000..cd80a14bb14d
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt.h
> @@ -0,0 +1,44 @@
> +/* SPDX-License-Identifier: MIT */
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#ifndef __SYSFS_GT_H__
> +#define __SYSFS_GT_H__
> +
> +#include <linux/ctype.h>
> +#include <linux/kobject.h>
> +
> +#include "i915_gem.h" /* GEM_BUG_ON() */
> +
> +struct intel_gt;
> +
> +struct kobj_gt {
> +	struct kobject base;
> +	struct intel_gt *gt;
> +};
> +
> +static inline bool is_object_gt(struct kobject *kobj)
> +{
> +	bool b = !strncmp(kobj->name, "gt", 2);
> +
> +	GEM_BUG_ON(b && !isdigit(kobj->name[2]));
> +
> +	return b;
> +}
> +
> +struct kobject *
> +intel_gt_create_kobj(struct intel_gt *gt,
> +		     struct kobject *dir,
> +		     const char *name);
> +
> +static inline struct intel_gt *kobj_to_gt(struct kobject *kobj)
> +{
> +	return container_of(kobj, struct kobj_gt, base)->gt;
> +}
> +
> +void intel_gt_sysfs_register(struct intel_gt *gt);
> +struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev,
> +					    const char *name);
> +
> +#endif /* SYSFS_GT_H */
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
> new file mode 100644
> index 000000000000..6f4424be42d1
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
> @@ -0,0 +1,393 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#include <drm/drm_device.h>
> +#include <linux/sysfs.h>
> +#include <linux/printk.h>
> +
> +#include "i915_drv.h"
> +#include "intel_gt.h"
> +#include "intel_rc6.h"
> +#include "intel_rps.h"
> +#include "sysfs_gt.h"
> +#include "sysfs_gt_pm.h"
> +
> +#ifdef CONFIG_PM
> +static u32 get_residency(struct intel_gt *gt, i915_reg_t reg)
> +{
> +	intel_wakeref_t wakeref;
> +	u64 res = 0;
> +
> +	with_intel_runtime_pm(gt->uncore->rpm, wakeref)
> +		res = intel_rc6_residency_us(&gt->rc6, reg);
> +
> +	return DIV_ROUND_CLOSEST_ULL(res, 1000);
> +}
> +
> +static ssize_t rc6_enable_show(struct device *dev,
> +			       struct device_attribute *attr,
> +			       char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u8 mask = 0;
> +
> +	if (HAS_RC6(gt->i915))
> +		mask |= BIT(0);
> +	if (HAS_RC6p(gt->i915))
> +		mask |= BIT(1);
> +	if (HAS_RC6pp(gt->i915))
> +		mask |= BIT(2);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%x\n", mask);
> +}
> +
> +static ssize_t rc6_residency_ms_show(struct device *dev,
> +				     struct device_attribute *attr,
> +				     char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6_residency = get_residency(gt, GEN6_GT_GFX_RC6);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6_residency);
> +}
> +
> +static ssize_t rc6p_residency_ms_show(struct device *dev,
> +				      struct device_attribute *attr,
> +				      char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6p_residency = get_residency(gt, GEN6_GT_GFX_RC6p);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6p_residency);
> +}
> +
> +static ssize_t rc6pp_residency_ms_show(struct device *dev,
> +				       struct device_attribute *attr,
> +				       char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6pp_residency = get_residency(gt, GEN6_GT_GFX_RC6pp);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6pp_residency);
> +}
> +
> +static ssize_t media_rc6_residency_ms_show(struct device *dev,
> +					   struct device_attribute *attr,
> +					   char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6_residency = get_residency(gt, VLV_GT_MEDIA_RC6);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6_residency);
> +}
> +
> +static DEVICE_ATTR_RO(rc6_enable);
> +static DEVICE_ATTR_RO(rc6_residency_ms);
> +static DEVICE_ATTR_RO(rc6p_residency_ms);
> +static DEVICE_ATTR_RO(rc6pp_residency_ms);
> +static DEVICE_ATTR_RO(media_rc6_residency_ms);
> +
> +static struct attribute *rc6_attrs[] = {
> +	&dev_attr_rc6_enable.attr,
> +	&dev_attr_rc6_residency_ms.attr,
> +	NULL
> +};
> +
> +static struct attribute *rc6p_attrs[] = {
> +	&dev_attr_rc6p_residency_ms.attr,
> +	&dev_attr_rc6pp_residency_ms.attr,
> +	NULL
> +};
> +
> +static struct attribute *media_rc6_attrs[] = {
> +	&dev_attr_media_rc6_residency_ms.attr,
> +	NULL
> +};
> +
> +static const struct attribute_group rc6_attr_group[] = {
> +	{ .name = power_group_name, .attrs = rc6_attrs },
> +	{ .attrs = rc6_attrs }
> +};
> +
> +static const struct attribute_group rc6p_attr_group[] = {
> +	{ .name = power_group_name, .attrs = rc6p_attrs },
> +	{ .attrs = rc6p_attrs }
> +};
> +
> +static const struct attribute_group media_rc6_attr_group[] = {
> +	{ .name = power_group_name, .attrs = media_rc6_attrs },
> +	{ .attrs = media_rc6_attrs }
> +};
> +
> +static int __intel_gt_sysfs_create_group(struct kobject *kobj,
> +					 const struct attribute_group *grp)
> +{
> +	int i = is_object_gt(kobj);
> +
> +	return i ? sysfs_create_group(kobj, &grp[i]) :
> +		   sysfs_merge_group(kobj, &grp[i]);
> +}
> +
> +static void intel_sysfs_rc6_init(struct intel_gt *gt, struct kobject *kobj)
> +{
> +	int ret;
> +
> +	if (!HAS_RC6(gt->i915))
> +		return;
> +
> +	ret = __intel_gt_sysfs_create_group(kobj, rc6_attr_group);
> +	if (ret)
> +		drm_err(&gt->i915->drm,
> +			"failed to create gt%u RC6 sysfs files\n", gt->info.id);
> +
> +	if (HAS_RC6p(gt->i915)) {
> +		ret = __intel_gt_sysfs_create_group(kobj, rc6p_attr_group);
> +		if (ret)
> +			drm_err(&gt->i915->drm,
> +				"failed to create gt%u RC6p sysfs files\n",
> +				gt->info.id);
> +	}
> +
> +	if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915)) {
> +		ret = __intel_gt_sysfs_create_group(kobj, media_rc6_attr_group);
> +		if (ret)
> +			drm_err(&gt->i915->drm,
> +				"failed to create media %u RC6 sysfs files\n",
> +				gt->info.id);
> +	}
> +}
> +#else
> +static void intel_sysfs_rc6_init(struct intel_gt *gt, struct kobject *kobj)
> +{
> +}
> +#endif /* CONFIG_PM */
> +
> +static ssize_t act_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr, char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			intel_rps_read_actual_frequency(&gt->rps));
> +}
> +
> +static ssize_t cur_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr, char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			 intel_rps_get_requested_frequency(rps));
> +}
> +
> +static ssize_t boost_freq_mhz_show(struct device *dev,
> +				   struct device_attribute *attr,
> +				   char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			 intel_rps_get_boost_frequency(rps));
> +}
> +
> +static ssize_t boost_freq_mhz_store(struct device *dev,
> +				    struct device_attribute *attr,
> +				    const char *buff, size_t count)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	bool boost = false;
> +	ssize_t ret;
> +	u32 val;
> +
> +	ret = kstrtou32(buff, 0, &val);
> +	if (ret)
> +		return ret;
> +
> +	/* Validate against (static) hardware limits */
> +	val = intel_freq_opcode(rps, val);
> +	if (val < rps->min_freq || val > rps->max_freq)
> +		return -EINVAL;
> +
> +	mutex_lock(&rps->lock);
> +	if (val != rps->boost_freq) {
> +		rps->boost_freq = val;
> +		boost = atomic_read(&rps->num_waiters);
> +	}
> +	mutex_unlock(&rps->lock);
> +	if (boost)
> +		schedule_work(&rps->work);
> +
> +	return count;
> +}
> +
> +static ssize_t vlv_rpe_freq_mhz_show(struct device *dev,
> +				     struct device_attribute *attr, char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			intel_gpu_freq(rps, rps->efficient_freq));
> +}
> +
> +static ssize_t max_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr,
> +				 char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return sysfs_emit(buff, "%d\n", intel_rps_get_max_frequency(rps));
> +}
> +
> +static ssize_t max_freq_mhz_store(struct device *dev,
> +				  struct device_attribute *attr,
> +				  const char *buff, size_t count)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	ssize_t ret;
> +	u32 val;
> +
> +	ret = kstrtou32(buff, 0, &val);
> +	if (ret)
> +		return ret;
> +
> +	ret = intel_rps_set_max_frequency(rps, val);
> +
> +	return ret ?: count;
> +}
> +
> +static ssize_t min_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr,
> +				 char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return sysfs_emit(buff, "%d\n", intel_rps_get_min_frequency(rps));
> +}
> +
> +static ssize_t min_freq_mhz_store(struct device *dev,
> +				  struct device_attribute *attr,
> +				  const char *buff, size_t count)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	ssize_t ret;
> +	u32 val;
> +
> +	ret = kstrtou32(buff, 0, &val);
> +	if (ret)
> +		return ret;
> +
> +	ret = intel_rps_set_min_frequency(rps, val);
> +
> +	return ret ?: count;
> +}
> +
> +#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
> +	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
> +	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)
> +
> +#define INTEL_GT_RPS_SYSFS_ATTR_RO(_name)				\
> +		INTEL_GT_RPS_SYSFS_ATTR(_name, 0444, _name##_show, NULL)
> +#define INTEL_GT_RPS_SYSFS_ATTR_RW(_name)				\
> +		INTEL_GT_RPS_SYSFS_ATTR(_name, 0644, _name##_show, _name##_store)
> +
> +static INTEL_GT_RPS_SYSFS_ATTR_RO(act_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RO(cur_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RW(boost_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RW(max_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RW(min_freq_mhz);
> +
> +static DEVICE_ATTR_RO(vlv_rpe_freq_mhz);
> +
> +static ssize_t rps_rp_mhz_show(struct device *dev,
> +			       struct device_attribute *attr,
> +			       char *buff);
> +
> +static INTEL_GT_RPS_SYSFS_ATTR(RP0_freq_mhz, 0444, rps_rp_mhz_show, NULL);
> +static INTEL_GT_RPS_SYSFS_ATTR(RP1_freq_mhz, 0444, rps_rp_mhz_show, NULL);
> +static INTEL_GT_RPS_SYSFS_ATTR(RPn_freq_mhz, 0444, rps_rp_mhz_show, NULL);
> +
> +#define GEN6_ATTR(s) { \
> +		&dev_attr_##s##_act_freq_mhz.attr, \
> +		&dev_attr_##s##_cur_freq_mhz.attr, \
> +		&dev_attr_##s##_boost_freq_mhz.attr, \
> +		&dev_attr_##s##_max_freq_mhz.attr, \
> +		&dev_attr_##s##_min_freq_mhz.attr, \
> +		&dev_attr_##s##_RP0_freq_mhz.attr, \
> +		&dev_attr_##s##_RP1_freq_mhz.attr, \
> +		&dev_attr_##s##_RPn_freq_mhz.attr, \
> +		NULL, \
> +	}
> +
> +#define GEN6_RPS_ATTR GEN6_ATTR(rps)
> +#define GEN6_GT_ATTR  GEN6_ATTR(gt)
> +
> +/* For now we have a static number of RP states */
> +static ssize_t rps_rp_mhz_show(struct device *dev,
> +			       struct device_attribute *attr,
> +			       char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	u32 val;
> +
> +	if (attr == &dev_attr_gt_RP0_freq_mhz ||
> +	    attr == &dev_attr_rps_RP0_freq_mhz) {
> +		val = intel_rps_get_rp0_frequency(rps);
> +	} else if (attr == &dev_attr_gt_RP1_freq_mhz ||
> +		   attr == &dev_attr_rps_RP1_freq_mhz) {
> +		   val = intel_rps_get_rp1_frequency(rps);
> +	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||
> +		   attr == &dev_attr_rps_RPn_freq_mhz) {
> +		   val = intel_rps_get_rpn_frequency(rps);
> +	} else {
> +		GEM_WARN_ON(1);
> +		return -ENODEV;
> +	}
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n", val);
> +}
> +
> +static const struct attribute * const gen6_rps_attrs[] = GEN6_RPS_ATTR;
> +static const struct attribute * const gen6_gt_attrs[]  = GEN6_GT_ATTR;
> +
> +static int intel_sysfs_rps_init(struct intel_gt *gt, struct kobject *kobj,
> +				const struct attribute * const *attrs)
> +{
> +	int ret;
> +
> +	if (GRAPHICS_VER(gt->i915) < 6)
> +		return 0;
> +
> +	ret = sysfs_create_files(kobj, attrs);
> +	if (ret)
> +		return ret;
> +
> +	if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915))
> +		ret = sysfs_create_file(kobj, &dev_attr_vlv_rpe_freq_mhz.attr);
> +
> +	return ret;
> +}
> +
> +void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj)
> +{
> +	int ret;
> +
> +	intel_sysfs_rc6_init(gt, kobj);
> +
> +	ret = is_object_gt(kobj) ?
> +	      intel_sysfs_rps_init(gt, kobj, gen6_rps_attrs) :
> +	      intel_sysfs_rps_init(gt, kobj, gen6_gt_attrs);
> +	if (ret)
> +		drm_err(&gt->i915->drm,
> +			"failed to create gt%u RPS sysfs files", gt->info.id);
> +}
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
> new file mode 100644
> index 000000000000..18c60d929e6d
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
> @@ -0,0 +1,16 @@
> +/* SPDX-License-Identifier: MIT */
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#ifndef __SYSFS_GT_PM_H__
> +#define __SYSFS_GT_PM_H__
> +
> +#include <linux/kobject.h>
> +
> +#include "intel_gt_types.h"
> +
> +void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj);
> +void intel_gt_sysfs_pm_remove(struct intel_gt *gt, struct kobject *kobj);
> +
> +#endif /* SYSFS_RC6_H */
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 14dbbc5ba9e4..595e2f41ba43 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -997,6 +997,8 @@ struct drm_i915_private {
>   #define I915_MAX_GT 4
>   	struct intel_gt *gt[I915_MAX_GT];
>   
> +	struct kobject *sysfs_gt;
> +
>   	struct {
>   		struct i915_gem_contexts {
>   			spinlock_t lock; /* locks list */
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 7c4013a0db61..12b2018e2407 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -8480,6 +8480,7 @@ enum {
>   #define   GEN6_AGGRESSIVE_TURBO			(0 << 15)
>   #define   GEN9_SW_REQ_UNSLICE_RATIO_SHIFT	23
>   #define   GEN9_IGNORE_SLICE_RATIO		(0 << 0)
> +#define   GEN12_SW_REQ_UNSLICE_RATIO_SHIFT	23
>   
>   #define GEN6_RC_VIDEO_FREQ			_MMIO(0xA00C)
>   #define GEN6_RC_CONTROL				_MMIO(0xA090)
> diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
> index fae4d1f4f275..d6687e33f29d 100644
> --- a/drivers/gpu/drm/i915/i915_sysfs.c
> +++ b/drivers/gpu/drm/i915/i915_sysfs.c
> @@ -38,113 +38,12 @@
>   #include "i915_sysfs.h"
>   #include "intel_pm.h"
>   
> -static inline struct drm_i915_private *kdev_minor_to_i915(struct device *kdev)
> +struct drm_i915_private *kdev_minor_to_i915(struct device *kdev)
>   {
>   	struct drm_minor *minor = dev_get_drvdata(kdev);
>   	return to_i915(minor->dev);
>   }
>   
> -#ifdef CONFIG_PM
> -static u32 calc_residency(struct drm_i915_private *dev_priv,
> -			  i915_reg_t reg)
> -{
> -	intel_wakeref_t wakeref;
> -	u64 res = 0;
> -
> -	with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref)
> -		res = intel_rc6_residency_us(&to_gt(dev_priv)->rc6, reg);
> -
> -	return DIV_ROUND_CLOSEST_ULL(res, 1000);
> -}
> -
> -static ssize_t rc6_enable_show(struct device *kdev,
> -			       struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	unsigned int mask;
> -
> -	mask = 0;
> -	if (HAS_RC6(dev_priv))
> -		mask |= BIT(0);
> -	if (HAS_RC6p(dev_priv))
> -		mask |= BIT(1);
> -	if (HAS_RC6pp(dev_priv))
> -		mask |= BIT(2);
> -
> -	return sysfs_emit(buf, "%x\n", mask);
> -}
> -
> -static ssize_t rc6_residency_ms_show(struct device *kdev,
> -				     struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6);
> -	return sysfs_emit(buf, "%u\n", rc6_residency);
> -}
> -
> -static ssize_t rc6p_residency_ms_show(struct device *kdev,
> -				      struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6p_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6p);
> -	return sysfs_emit(buf, "%u\n", rc6p_residency);
> -}
> -
> -static ssize_t rc6pp_residency_ms_show(struct device *kdev,
> -				       struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6pp_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6pp);
> -	return sysfs_emit(buf, "%u\n", rc6pp_residency);
> -}
> -
> -static ssize_t media_rc6_residency_ms_show(struct device *kdev,
> -					   struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6_residency = calc_residency(dev_priv, VLV_GT_MEDIA_RC6);
> -	return sysfs_emit(buf, "%u\n", rc6_residency);
> -}
> -
> -static DEVICE_ATTR_RO(rc6_enable);
> -static DEVICE_ATTR_RO(rc6_residency_ms);
> -static DEVICE_ATTR_RO(rc6p_residency_ms);
> -static DEVICE_ATTR_RO(rc6pp_residency_ms);
> -static DEVICE_ATTR_RO(media_rc6_residency_ms);
> -
> -static struct attribute *rc6_attrs[] = {
> -	&dev_attr_rc6_enable.attr,
> -	&dev_attr_rc6_residency_ms.attr,
> -	NULL
> -};
> -
> -static const struct attribute_group rc6_attr_group = {
> -	.name = power_group_name,
> -	.attrs =  rc6_attrs
> -};
> -
> -static struct attribute *rc6p_attrs[] = {
> -	&dev_attr_rc6p_residency_ms.attr,
> -	&dev_attr_rc6pp_residency_ms.attr,
> -	NULL
> -};
> -
> -static const struct attribute_group rc6p_attr_group = {
> -	.name = power_group_name,
> -	.attrs =  rc6p_attrs
> -};
> -
> -static struct attribute *media_rc6_attrs[] = {
> -	&dev_attr_media_rc6_residency_ms.attr,
> -	NULL
> -};
> -
> -static const struct attribute_group media_rc6_attr_group = {
> -	.name = power_group_name,
> -	.attrs =  media_rc6_attrs
> -};
> -#endif
> -
>   static int l3_access_valid(struct drm_i915_private *i915, loff_t offset)
>   {
>   	if (!HAS_L3_DPF(i915))
> @@ -256,171 +155,6 @@ static const struct bin_attribute dpf_attrs_1 = {
>   	.private = (void *)1
>   };
>   
> -static ssize_t gt_act_freq_mhz_show(struct device *kdev,
> -				    struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_read_actual_frequency(rps));
> -}
> -
> -static ssize_t gt_cur_freq_mhz_show(struct device *kdev,
> -				    struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_requested_frequency(rps));
> -}
> -
> -static ssize_t gt_boost_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_boost_frequency(rps));
> -}
> -
> -static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
> -				       struct device_attribute *attr,
> -				       const char *buf, size_t count)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(dev_priv)->rps;
> -	ssize_t ret;
> -	u32 val;
> -
> -	ret = kstrtou32(buf, 0, &val);
> -	if (ret)
> -		return ret;
> -
> -	ret = intel_rps_set_boost_frequency(rps, val);
> -
> -	return ret ?: count;
> -}
> -
> -static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev,
> -				     struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(dev_priv)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_gpu_freq(rps, rps->efficient_freq));
> -}
> -
> -static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_gt *gt = to_gt(dev_priv);
> -	struct intel_rps *rps = &gt->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_max_frequency(rps));
> -}
> -
> -static ssize_t gt_max_freq_mhz_store(struct device *kdev,
> -				     struct device_attribute *attr,
> -				     const char *buf, size_t count)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_gt *gt = to_gt(dev_priv);
> -	struct intel_rps *rps = &gt->rps;
> -	ssize_t ret;
> -	u32 val;
> -
> -	ret = kstrtou32(buf, 0, &val);
> -	if (ret)
> -		return ret;
> -
> -	ret = intel_rps_set_max_frequency(rps, val);
> -
> -	return ret ?: count;
> -}
> -
> -static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_gt *gt = to_gt(i915);
> -	struct intel_rps *rps = &gt->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_min_frequency(rps));
> -}
> -
> -static ssize_t gt_min_freq_mhz_store(struct device *kdev,
> -				     struct device_attribute *attr,
> -				     const char *buf, size_t count)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -	ssize_t ret;
> -	u32 val;
> -
> -	ret = kstrtou32(buf, 0, &val);
> -	if (ret)
> -		return ret;
> -
> -	ret = intel_rps_set_min_frequency(rps, val);
> -
> -	return ret ?: count;
> -}
> -
> -static DEVICE_ATTR_RO(gt_act_freq_mhz);
> -static DEVICE_ATTR_RO(gt_cur_freq_mhz);
> -static DEVICE_ATTR_RW(gt_boost_freq_mhz);
> -static DEVICE_ATTR_RW(gt_max_freq_mhz);
> -static DEVICE_ATTR_RW(gt_min_freq_mhz);
> -
> -static DEVICE_ATTR_RO(vlv_rpe_freq_mhz);
> -
> -static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf);
> -static DEVICE_ATTR(gt_RP0_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
> -static DEVICE_ATTR(gt_RP1_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
> -static DEVICE_ATTR(gt_RPn_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
> -
> -/* For now we have a static number of RP states */
> -static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(dev_priv)->rps;
> -	u32 val;
> -
> -	if (attr == &dev_attr_gt_RP0_freq_mhz)
> -		val = intel_rps_get_rp0_frequency(rps);
> -	else if (attr == &dev_attr_gt_RP1_freq_mhz)
> -		val = intel_rps_get_rp1_frequency(rps);
> -	else if (attr == &dev_attr_gt_RPn_freq_mhz)
> -		val = intel_rps_get_rpn_frequency(rps);
> -	else
> -		BUG();
> -
> -	return sysfs_emit(buf, "%d\n", val);
> -}
> -
> -static const struct attribute * const gen6_attrs[] = {
> -	&dev_attr_gt_act_freq_mhz.attr,
> -	&dev_attr_gt_cur_freq_mhz.attr,
> -	&dev_attr_gt_boost_freq_mhz.attr,
> -	&dev_attr_gt_max_freq_mhz.attr,
> -	&dev_attr_gt_min_freq_mhz.attr,
> -	&dev_attr_gt_RP0_freq_mhz.attr,
> -	&dev_attr_gt_RP1_freq_mhz.attr,
> -	&dev_attr_gt_RPn_freq_mhz.attr,
> -	NULL,
> -};
> -
> -static const struct attribute * const vlv_attrs[] = {
> -	&dev_attr_gt_act_freq_mhz.attr,
> -	&dev_attr_gt_cur_freq_mhz.attr,
> -	&dev_attr_gt_boost_freq_mhz.attr,
> -	&dev_attr_gt_max_freq_mhz.attr,
> -	&dev_attr_gt_min_freq_mhz.attr,
> -	&dev_attr_gt_RP0_freq_mhz.attr,
> -	&dev_attr_gt_RP1_freq_mhz.attr,
> -	&dev_attr_gt_RPn_freq_mhz.attr,
> -	&dev_attr_vlv_rpe_freq_mhz.attr,
> -	NULL,
> -};
> -
>   #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
>   
>   static ssize_t error_state_read(struct file *filp, struct kobject *kobj,
> @@ -486,34 +220,16 @@ static void i915_setup_error_capture(struct device *kdev) {}
>   static void i915_teardown_error_capture(struct device *kdev) {}
>   #endif
>   
> +static struct kobject *i915_setup_gt_sysfs(struct kobject *parent)
> +{
> +	return kobject_create_and_add("gt", parent);
> +}
> +
>   void i915_setup_sysfs(struct drm_i915_private *dev_priv)
>   {
>   	struct device *kdev = dev_priv->drm.primary->kdev;
>   	int ret;
>   
> -#ifdef CONFIG_PM
> -	if (HAS_RC6(dev_priv)) {
> -		ret = sysfs_merge_group(&kdev->kobj,
> -					&rc6_attr_group);
> -		if (ret)
> -			drm_err(&dev_priv->drm,
> -				"RC6 residency sysfs setup failed\n");
> -	}
> -	if (HAS_RC6p(dev_priv)) {
> -		ret = sysfs_merge_group(&kdev->kobj,
> -					&rc6p_attr_group);
> -		if (ret)
> -			drm_err(&dev_priv->drm,
> -				"RC6p residency sysfs setup failed\n");
> -	}
> -	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
> -		ret = sysfs_merge_group(&kdev->kobj,
> -					&media_rc6_attr_group);
> -		if (ret)
> -			drm_err(&dev_priv->drm,
> -				"Media RC6 residency sysfs setup failed\n");
> -	}
> -#endif
>   	if (HAS_L3_DPF(dev_priv)) {
>   		ret = device_create_bin_file(kdev, &dpf_attrs);
>   		if (ret)
> @@ -529,13 +245,10 @@ void i915_setup_sysfs(struct drm_i915_private *dev_priv)
>   		}
>   	}
>   
> -	ret = 0;
> -	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
> -		ret = sysfs_create_files(&kdev->kobj, vlv_attrs);
> -	else if (GRAPHICS_VER(dev_priv) >= 6)
> -		ret = sysfs_create_files(&kdev->kobj, gen6_attrs);
> -	if (ret)
> -		drm_err(&dev_priv->drm, "RPS sysfs setup failed\n");
> +	dev_priv->sysfs_gt = i915_setup_gt_sysfs(&kdev->kobj);
> +	if (!dev_priv->sysfs_gt)
> +		drm_err(&dev_priv->drm,
> +			"failed to register GT sysfs directory\n");
>   
>   	i915_setup_error_capture(kdev);
>   
> @@ -548,14 +261,6 @@ void i915_teardown_sysfs(struct drm_i915_private *dev_priv)
>   
>   	i915_teardown_error_capture(kdev);
>   
> -	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
> -		sysfs_remove_files(&kdev->kobj, vlv_attrs);
> -	else
> -		sysfs_remove_files(&kdev->kobj, gen6_attrs);
>   	device_remove_bin_file(kdev,  &dpf_attrs_1);
>   	device_remove_bin_file(kdev,  &dpf_attrs);
> -#ifdef CONFIG_PM
> -	sysfs_unmerge_group(&kdev->kobj, &rc6_attr_group);
> -	sysfs_unmerge_group(&kdev->kobj, &rc6p_attr_group);
> -#endif
>   }
> diff --git a/drivers/gpu/drm/i915/i915_sysfs.h b/drivers/gpu/drm/i915/i915_sysfs.h
> index 41afd4366416..243a17741e3f 100644
> --- a/drivers/gpu/drm/i915/i915_sysfs.h
> +++ b/drivers/gpu/drm/i915/i915_sysfs.h
> @@ -6,8 +6,11 @@
>   #ifndef __I915_SYSFS_H__
>   #define __I915_SYSFS_H__
>   
> +struct device;
>   struct drm_i915_private;
>   
> +struct drm_i915_private *kdev_minor_to_i915(struct device *kdev);
> +
>   void i915_setup_sysfs(struct drm_i915_private *i915);
>   void i915_teardown_sysfs(struct drm_i915_private *i915);

Looks good. Will be great to finally have this sysfs framework.

I'm not sure if the CI.CHECKPATCH warnings matter, but otherwise,

Reviewed-by : Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>

>   

Re: [Intel-gfx] [PATCH v2 2/2] drm/i915/gt: make a gt sysfs group and move power management files

[Sundaresan, Sujaritha]

On 1/12/2022 2:20 PM, Andi Shyti wrote:
> The GT has its own properties and in sysfs they should be grouped
> in the 'gt/' directory.
>
> Create a 'gt/' directory in sysfs which will contain gt0...gtN
> directories related to each tile configured in the GPU. Move the
> power management files inside those directories.
>
> The previous power management files are kept in their original
> root directory to avoid breaking the ABI. They point to the tile
> '0' and a warning message is printed whenever accessed to. The
> deprecated interface needs for the CONFIG_SYSFS_DEPRECATED_V2
> flag in order to be generated.
>
> The new sysfs structure will have a similar layout for the 4 tile
> case:
>
> /sys/.../card0
>           ├── gt
>           │   ├── gt0
>           │   │   ├── id
>           │   │   ├── rc6_enable
>           │   │   ├── rc6_residency_ms
>           │   │   ├── rps_act_freq_mhz
>           │   │   ├── rps_boost_freq_mhz
>           │   │   ├── rps_cur_freq_mhz
>           │   │   ├── rps_max_freq_mhz
>           │   │   ├── rps_min_freq_mhz
>           │   │   ├── rps_RP0_freq_mhz
>           │   │   ├── rps_RP1_freq_mhz
>           │   │   └── rps_RPn_freq_mhz
> 	 .   .
> 	 .   .
> 	 .   .
>           │   └── gt3
>           │       ├── id
>           │       ├── rc6_enable
>           │       ├── rc6_residency_ms
>           │       ├── rps_act_freq_mhz
>           │       ├── rps_boost_freq_mhz
>           │       ├── rps_cur_freq_mhz
>           │       ├── rps_max_freq_mhz
>           │       ├── rps_min_freq_mhz
>           │       ├── rps_RP0_freq_mhz
>           │       ├── rps_RP1_freq_mhz
>           │       └── rps_RPn_freq_mhz
>           ├── gt_act_freq_mhz   -+
>           ├── gt_boost_freq_mhz  |
>           ├── gt_cur_freq_mhz    |    Original interface
>           ├── gt_max_freq_mhz    +─-> kept as existing ABI;
>           ├── gt_min_freq_mhz    |    it points to gt0/
>           ├── gt_RP0_freq_mhz    |
>           └── gt_RP1_freq_mhz    |
>           └── gt_RPn_freq_mhz   -+
>
> Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
> Cc: Matt Roper <matthew.d.roper@intel.com>
> Cc: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> ---
>   drivers/gpu/drm/i915/Makefile         |   4 +-
>   drivers/gpu/drm/i915/gt/intel_gt.c    |   2 +
>   drivers/gpu/drm/i915/gt/sysfs_gt.c    | 126 +++++++++
>   drivers/gpu/drm/i915/gt/sysfs_gt.h    |  44 +++
>   drivers/gpu/drm/i915/gt/sysfs_gt_pm.c | 393 ++++++++++++++++++++++++++
>   drivers/gpu/drm/i915/gt/sysfs_gt_pm.h |  16 ++
>   drivers/gpu/drm/i915/i915_drv.h       |   2 +
>   drivers/gpu/drm/i915/i915_reg.h       |   1 +
>   drivers/gpu/drm/i915/i915_sysfs.c     | 315 +--------------------
>   drivers/gpu/drm/i915/i915_sysfs.h     |   3 +
>   10 files changed, 600 insertions(+), 306 deletions(-)
>   create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.c
>   create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.h
>   create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
>   create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
>
> diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
> index aa86ac33effc..5fd203c626fc 100644
> --- a/drivers/gpu/drm/i915/Makefile
> +++ b/drivers/gpu/drm/i915/Makefile
> @@ -121,7 +121,9 @@ gt-y += \
>   	gt/intel_timeline.o \
>   	gt/intel_workarounds.o \
>   	gt/shmem_utils.o \
> -	gt/sysfs_engines.o
> +	gt/sysfs_engines.o \
> +	gt/sysfs_gt.o \
> +	gt/sysfs_gt_pm.o
>   # autogenerated null render state
>   gt-y += \
>   	gt/gen6_renderstate.o \
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
> index 17927da9e23e..2584c51c1c14 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt.c
> +++ b/drivers/gpu/drm/i915/gt/intel_gt.c
> @@ -25,6 +25,7 @@
>   #include "intel_rps.h"
>   #include "intel_uncore.h"
>   #include "shmem_utils.h"
> +#include "sysfs_gt.h"
>   #include "pxp/intel_pxp.h"
>   
>   static void
> @@ -453,6 +454,7 @@ void intel_gt_driver_register(struct intel_gt *gt)
>   	intel_rps_driver_register(&gt->rps);
>   
>   	intel_gt_debugfs_register(gt);
> +	intel_gt_sysfs_register(gt);
>   }
>   
>   static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size)
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt.c b/drivers/gpu/drm/i915/gt/sysfs_gt.c
> new file mode 100644
> index 000000000000..46cf033a53ec
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt.c
> @@ -0,0 +1,126 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#include <drm/drm_device.h>
> +#include <linux/device.h>
> +#include <linux/kobject.h>
> +#include <linux/printk.h>
> +#include <linux/sysfs.h>
> +
> +#include "i915_drv.h"
> +#include "i915_sysfs.h"
> +#include "intel_gt.h"
> +#include "intel_gt_types.h"
> +#include "intel_rc6.h"
> +
> +#include "sysfs_gt.h"
> +#include "sysfs_gt_pm.h"
> +
> +struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev,
> +					    const char *name)
> +{
> +	struct kobject *kobj = &dev->kobj;
> +
> +	/*
> +	 * We are interested at knowing from where the interface
> +	 * has been called, whether it's called from gt/ or from
> +	 * the parent directory.
> +	 * From the interface position it depends also the value of
> +	 * the private data.
> +	 * If the interface is called from gt/ then private data is
> +	 * of the "struct intel_gt *" type, otherwise it's * a
> +	 * "struct drm_i915_private *" type.
> +	 */
> +	if (!is_object_gt(kobj)) {
> +		struct drm_i915_private *i915 = kdev_minor_to_i915(dev);
> +
> +		pr_devel_ratelimited(DEPRECATED
> +			"%s (pid %d) is trying to access deprecated %s "
> +			"sysfs control, please use gt/gt<n>/%s instead\n",
> +			current->comm, task_pid_nr(current), name, name);
> +		return to_gt(i915);
> +	}
> +
> +	return kobj_to_gt(kobj);
> +}
> +
> +static struct kobject *gt_get_parent_obj(struct intel_gt *gt)
> +{
> +	return &gt->i915->drm.primary->kdev->kobj;
> +}
> +
> +static ssize_t id_show(struct device *dev,
> +		       struct device_attribute *attr,
> +		       char *buf)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +
> +	return sysfs_emit(buf, "%u\n", gt->info.id);
> +}
> +
> +static DEVICE_ATTR_RO(id);
> +
> +static void kobj_gt_release(struct kobject *kobj)
> +{
> +	kfree(kobj);
> +}
> +
> +static struct kobj_type kobj_gt_type = {
> +	.release = kobj_gt_release,
> +	.sysfs_ops = &kobj_sysfs_ops
> +};
> +
> +struct kobject *
> +intel_gt_create_kobj(struct intel_gt *gt, struct kobject *dir, const char *name)
> +{
> +	struct kobj_gt *kg;
> +
> +	kg = kzalloc(sizeof(*kg), GFP_KERNEL);
> +	if (!kg)
> +		return NULL;
> +
> +	kobject_init(&kg->base, &kobj_gt_type);
> +	kg->gt = gt;
> +
> +	/* xfer ownership to sysfs tree */
> +	if (kobject_add(&kg->base, dir, "%s", name)) {
> +		kobject_put(&kg->base);
> +		return NULL;
> +	}
> +
> +	return &kg->base; /* borrowed ref */
> +}
> +
> +void intel_gt_sysfs_register(struct intel_gt *gt)
> +{
> +	struct kobject *dir;
> +	char name[80];
> +
> +	/*
> +	 * We need to make things right with the
> +	 * ABI compatibility. The files were originally
> +	 * generated under the parent directory.
> +	 *
> +	 * We generate the files only for gt 0
> +	 * to avoid duplicates.
> +	 */
> +	if (!gt->info.id)
> +		intel_gt_sysfs_pm_init(gt, gt_get_parent_obj(gt));
> +
> +	snprintf(name, sizeof(name), "gt%d", gt->info.id);
> +
> +	dir = intel_gt_create_kobj(gt, gt->i915->sysfs_gt, name);
> +	if (!dir) {
> +		drm_err(&gt->i915->drm,
> +			"failed to initialize %s sysfs root\n", name);
> +		return;
> +	}
> +
> +	if (sysfs_create_file(dir, &dev_attr_id.attr))
> +		drm_err(&gt->i915->drm,
> +			"failed to create sysfs %s info files\n", name);
> +
> +	intel_gt_sysfs_pm_init(gt, dir);
> +}
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt.h b/drivers/gpu/drm/i915/gt/sysfs_gt.h
> new file mode 100644
> index 000000000000..cd80a14bb14d
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt.h
> @@ -0,0 +1,44 @@
> +/* SPDX-License-Identifier: MIT */
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#ifndef __SYSFS_GT_H__
> +#define __SYSFS_GT_H__
> +
> +#include <linux/ctype.h>
> +#include <linux/kobject.h>
> +
> +#include "i915_gem.h" /* GEM_BUG_ON() */
> +
> +struct intel_gt;
> +
> +struct kobj_gt {
> +	struct kobject base;
> +	struct intel_gt *gt;
> +};
> +
> +static inline bool is_object_gt(struct kobject *kobj)
> +{
> +	bool b = !strncmp(kobj->name, "gt", 2);
> +
> +	GEM_BUG_ON(b && !isdigit(kobj->name[2]));
> +
> +	return b;
> +}
> +
> +struct kobject *
> +intel_gt_create_kobj(struct intel_gt *gt,
> +		     struct kobject *dir,
> +		     const char *name);
> +
> +static inline struct intel_gt *kobj_to_gt(struct kobject *kobj)
> +{
> +	return container_of(kobj, struct kobj_gt, base)->gt;
> +}
> +
> +void intel_gt_sysfs_register(struct intel_gt *gt);
> +struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev,
> +					    const char *name);
> +
> +#endif /* SYSFS_GT_H */
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
> new file mode 100644
> index 000000000000..6f4424be42d1
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
> @@ -0,0 +1,393 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#include <drm/drm_device.h>
> +#include <linux/sysfs.h>
> +#include <linux/printk.h>
> +
> +#include "i915_drv.h"
> +#include "intel_gt.h"
> +#include "intel_rc6.h"
> +#include "intel_rps.h"
> +#include "sysfs_gt.h"
> +#include "sysfs_gt_pm.h"
> +
> +#ifdef CONFIG_PM
> +static u32 get_residency(struct intel_gt *gt, i915_reg_t reg)
> +{
> +	intel_wakeref_t wakeref;
> +	u64 res = 0;
> +
> +	with_intel_runtime_pm(gt->uncore->rpm, wakeref)
> +		res = intel_rc6_residency_us(&gt->rc6, reg);
> +
> +	return DIV_ROUND_CLOSEST_ULL(res, 1000);
> +}
> +
> +static ssize_t rc6_enable_show(struct device *dev,
> +			       struct device_attribute *attr,
> +			       char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u8 mask = 0;
> +
> +	if (HAS_RC6(gt->i915))
> +		mask |= BIT(0);
> +	if (HAS_RC6p(gt->i915))
> +		mask |= BIT(1);
> +	if (HAS_RC6pp(gt->i915))
> +		mask |= BIT(2);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%x\n", mask);
> +}
> +
> +static ssize_t rc6_residency_ms_show(struct device *dev,
> +				     struct device_attribute *attr,
> +				     char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6_residency = get_residency(gt, GEN6_GT_GFX_RC6);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6_residency);
> +}
> +
> +static ssize_t rc6p_residency_ms_show(struct device *dev,
> +				      struct device_attribute *attr,
> +				      char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6p_residency = get_residency(gt, GEN6_GT_GFX_RC6p);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6p_residency);
> +}
> +
> +static ssize_t rc6pp_residency_ms_show(struct device *dev,
> +				       struct device_attribute *attr,
> +				       char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6pp_residency = get_residency(gt, GEN6_GT_GFX_RC6pp);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6pp_residency);
> +}
> +
> +static ssize_t media_rc6_residency_ms_show(struct device *dev,
> +					   struct device_attribute *attr,
> +					   char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6_residency = get_residency(gt, VLV_GT_MEDIA_RC6);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6_residency);
> +}
> +
> +static DEVICE_ATTR_RO(rc6_enable);
> +static DEVICE_ATTR_RO(rc6_residency_ms);
> +static DEVICE_ATTR_RO(rc6p_residency_ms);
> +static DEVICE_ATTR_RO(rc6pp_residency_ms);
> +static DEVICE_ATTR_RO(media_rc6_residency_ms);
> +
> +static struct attribute *rc6_attrs[] = {
> +	&dev_attr_rc6_enable.attr,
> +	&dev_attr_rc6_residency_ms.attr,
> +	NULL
> +};
> +
> +static struct attribute *rc6p_attrs[] = {
> +	&dev_attr_rc6p_residency_ms.attr,
> +	&dev_attr_rc6pp_residency_ms.attr,
> +	NULL
> +};
> +
> +static struct attribute *media_rc6_attrs[] = {
> +	&dev_attr_media_rc6_residency_ms.attr,
> +	NULL
> +};
> +
> +static const struct attribute_group rc6_attr_group[] = {
> +	{ .name = power_group_name, .attrs = rc6_attrs },
> +	{ .attrs = rc6_attrs }
> +};
> +
> +static const struct attribute_group rc6p_attr_group[] = {
> +	{ .name = power_group_name, .attrs = rc6p_attrs },
> +	{ .attrs = rc6p_attrs }
> +};
> +
> +static const struct attribute_group media_rc6_attr_group[] = {
> +	{ .name = power_group_name, .attrs = media_rc6_attrs },
> +	{ .attrs = media_rc6_attrs }
> +};
> +
> +static int __intel_gt_sysfs_create_group(struct kobject *kobj,
> +					 const struct attribute_group *grp)
> +{
> +	int i = is_object_gt(kobj);
> +
> +	return i ? sysfs_create_group(kobj, &grp[i]) :
> +		   sysfs_merge_group(kobj, &grp[i]);
> +}
> +
> +static void intel_sysfs_rc6_init(struct intel_gt *gt, struct kobject *kobj)
> +{
> +	int ret;
> +
> +	if (!HAS_RC6(gt->i915))
> +		return;
> +
> +	ret = __intel_gt_sysfs_create_group(kobj, rc6_attr_group);
> +	if (ret)
> +		drm_err(&gt->i915->drm,
> +			"failed to create gt%u RC6 sysfs files\n", gt->info.id);
> +
> +	if (HAS_RC6p(gt->i915)) {
> +		ret = __intel_gt_sysfs_create_group(kobj, rc6p_attr_group);
> +		if (ret)
> +			drm_err(&gt->i915->drm,
> +				"failed to create gt%u RC6p sysfs files\n",
> +				gt->info.id);
> +	}
> +
> +	if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915)) {
> +		ret = __intel_gt_sysfs_create_group(kobj, media_rc6_attr_group);
> +		if (ret)
> +			drm_err(&gt->i915->drm,
> +				"failed to create media %u RC6 sysfs files\n",
> +				gt->info.id);
> +	}
> +}
> +#else
> +static void intel_sysfs_rc6_init(struct intel_gt *gt, struct kobject *kobj)
> +{
> +}
> +#endif /* CONFIG_PM */
> +
> +static ssize_t act_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr, char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			intel_rps_read_actual_frequency(&gt->rps));
> +}
> +
> +static ssize_t cur_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr, char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			 intel_rps_get_requested_frequency(rps));
> +}
> +
> +static ssize_t boost_freq_mhz_show(struct device *dev,
> +				   struct device_attribute *attr,
> +				   char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			 intel_rps_get_boost_frequency(rps));
> +}
> +
> +static ssize_t boost_freq_mhz_store(struct device *dev,
> +				    struct device_attribute *attr,
> +				    const char *buff, size_t count)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	bool boost = false;
> +	ssize_t ret;
> +	u32 val;
> +
> +	ret = kstrtou32(buff, 0, &val);
> +	if (ret)
> +		return ret;
> +
> +	/* Validate against (static) hardware limits */
> +	val = intel_freq_opcode(rps, val);
> +	if (val < rps->min_freq || val > rps->max_freq)
> +		return -EINVAL;
> +
> +	mutex_lock(&rps->lock);
> +	if (val != rps->boost_freq) {
> +		rps->boost_freq = val;
> +		boost = atomic_read(&rps->num_waiters);
> +	}
> +	mutex_unlock(&rps->lock);
> +	if (boost)
> +		schedule_work(&rps->work);
> +
> +	return count;
> +}
> +
> +static ssize_t vlv_rpe_freq_mhz_show(struct device *dev,
> +				     struct device_attribute *attr, char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			intel_gpu_freq(rps, rps->efficient_freq));
> +}
> +
> +static ssize_t max_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr,
> +				 char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return sysfs_emit(buff, "%d\n", intel_rps_get_max_frequency(rps));
> +}
> +
> +static ssize_t max_freq_mhz_store(struct device *dev,
> +				  struct device_attribute *attr,
> +				  const char *buff, size_t count)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	ssize_t ret;
> +	u32 val;
> +
> +	ret = kstrtou32(buff, 0, &val);
> +	if (ret)
> +		return ret;
> +
> +	ret = intel_rps_set_max_frequency(rps, val);
> +
> +	return ret ?: count;
> +}
> +
> +static ssize_t min_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr,
> +				 char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return sysfs_emit(buff, "%d\n", intel_rps_get_min_frequency(rps));
> +}
> +
> +static ssize_t min_freq_mhz_store(struct device *dev,
> +				  struct device_attribute *attr,
> +				  const char *buff, size_t count)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	ssize_t ret;
> +	u32 val;
> +
> +	ret = kstrtou32(buff, 0, &val);
> +	if (ret)
> +		return ret;
> +
> +	ret = intel_rps_set_min_frequency(rps, val);
> +
> +	return ret ?: count;
> +}
> +
> +#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
> +	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
> +	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)
> +
> +#define INTEL_GT_RPS_SYSFS_ATTR_RO(_name)				\
> +		INTEL_GT_RPS_SYSFS_ATTR(_name, 0444, _name##_show, NULL)
> +#define INTEL_GT_RPS_SYSFS_ATTR_RW(_name)				\
> +		INTEL_GT_RPS_SYSFS_ATTR(_name, 0644, _name##_show, _name##_store)
> +
> +static INTEL_GT_RPS_SYSFS_ATTR_RO(act_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RO(cur_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RW(boost_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RW(max_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RW(min_freq_mhz);
> +
> +static DEVICE_ATTR_RO(vlv_rpe_freq_mhz);
> +
> +static ssize_t rps_rp_mhz_show(struct device *dev,
> +			       struct device_attribute *attr,
> +			       char *buff);
> +
> +static INTEL_GT_RPS_SYSFS_ATTR(RP0_freq_mhz, 0444, rps_rp_mhz_show, NULL);
> +static INTEL_GT_RPS_SYSFS_ATTR(RP1_freq_mhz, 0444, rps_rp_mhz_show, NULL);
> +static INTEL_GT_RPS_SYSFS_ATTR(RPn_freq_mhz, 0444, rps_rp_mhz_show, NULL);
> +
> +#define GEN6_ATTR(s) { \
> +		&dev_attr_##s##_act_freq_mhz.attr, \
> +		&dev_attr_##s##_cur_freq_mhz.attr, \
> +		&dev_attr_##s##_boost_freq_mhz.attr, \
> +		&dev_attr_##s##_max_freq_mhz.attr, \
> +		&dev_attr_##s##_min_freq_mhz.attr, \
> +		&dev_attr_##s##_RP0_freq_mhz.attr, \
> +		&dev_attr_##s##_RP1_freq_mhz.attr, \
> +		&dev_attr_##s##_RPn_freq_mhz.attr, \
> +		NULL, \
> +	}
> +
> +#define GEN6_RPS_ATTR GEN6_ATTR(rps)
> +#define GEN6_GT_ATTR  GEN6_ATTR(gt)
> +
> +/* For now we have a static number of RP states */
> +static ssize_t rps_rp_mhz_show(struct device *dev,
> +			       struct device_attribute *attr,
> +			       char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	u32 val;
> +
> +	if (attr == &dev_attr_gt_RP0_freq_mhz ||
> +	    attr == &dev_attr_rps_RP0_freq_mhz) {
> +		val = intel_rps_get_rp0_frequency(rps);
> +	} else if (attr == &dev_attr_gt_RP1_freq_mhz ||
> +		   attr == &dev_attr_rps_RP1_freq_mhz) {
> +		   val = intel_rps_get_rp1_frequency(rps);
> +	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||
> +		   attr == &dev_attr_rps_RPn_freq_mhz) {
> +		   val = intel_rps_get_rpn_frequency(rps);
> +	} else {
> +		GEM_WARN_ON(1);
> +		return -ENODEV;
> +	}
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n", val);
> +}
> +
> +static const struct attribute * const gen6_rps_attrs[] = GEN6_RPS_ATTR;
> +static const struct attribute * const gen6_gt_attrs[]  = GEN6_GT_ATTR;
> +
> +static int intel_sysfs_rps_init(struct intel_gt *gt, struct kobject *kobj,
> +				const struct attribute * const *attrs)
> +{
> +	int ret;
> +
> +	if (GRAPHICS_VER(gt->i915) < 6)
> +		return 0;
> +
> +	ret = sysfs_create_files(kobj, attrs);
> +	if (ret)
> +		return ret;
> +
> +	if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915))
> +		ret = sysfs_create_file(kobj, &dev_attr_vlv_rpe_freq_mhz.attr);
> +
> +	return ret;
> +}
> +
> +void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj)
> +{
> +	int ret;
> +
> +	intel_sysfs_rc6_init(gt, kobj);
> +
> +	ret = is_object_gt(kobj) ?
> +	      intel_sysfs_rps_init(gt, kobj, gen6_rps_attrs) :
> +	      intel_sysfs_rps_init(gt, kobj, gen6_gt_attrs);
> +	if (ret)
> +		drm_err(&gt->i915->drm,
> +			"failed to create gt%u RPS sysfs files", gt->info.id);
> +}
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
> new file mode 100644
> index 000000000000..18c60d929e6d
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
> @@ -0,0 +1,16 @@
> +/* SPDX-License-Identifier: MIT */
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#ifndef __SYSFS_GT_PM_H__
> +#define __SYSFS_GT_PM_H__
> +
> +#include <linux/kobject.h>
> +
> +#include "intel_gt_types.h"
> +
> +void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj);
> +void intel_gt_sysfs_pm_remove(struct intel_gt *gt, struct kobject *kobj);
> +
> +#endif /* SYSFS_RC6_H */
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 14dbbc5ba9e4..595e2f41ba43 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -997,6 +997,8 @@ struct drm_i915_private {
>   #define I915_MAX_GT 4
>   	struct intel_gt *gt[I915_MAX_GT];
>   
> +	struct kobject *sysfs_gt;
> +
>   	struct {
>   		struct i915_gem_contexts {
>   			spinlock_t lock; /* locks list */
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 7c4013a0db61..12b2018e2407 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -8480,6 +8480,7 @@ enum {
>   #define   GEN6_AGGRESSIVE_TURBO			(0 << 15)
>   #define   GEN9_SW_REQ_UNSLICE_RATIO_SHIFT	23
>   #define   GEN9_IGNORE_SLICE_RATIO		(0 << 0)
> +#define   GEN12_SW_REQ_UNSLICE_RATIO_SHIFT	23
>   
>   #define GEN6_RC_VIDEO_FREQ			_MMIO(0xA00C)
>   #define GEN6_RC_CONTROL				_MMIO(0xA090)
> diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
> index fae4d1f4f275..d6687e33f29d 100644
> --- a/drivers/gpu/drm/i915/i915_sysfs.c
> +++ b/drivers/gpu/drm/i915/i915_sysfs.c
> @@ -38,113 +38,12 @@
>   #include "i915_sysfs.h"
>   #include "intel_pm.h"
>   
> -static inline struct drm_i915_private *kdev_minor_to_i915(struct device *kdev)
> +struct drm_i915_private *kdev_minor_to_i915(struct device *kdev)
>   {
>   	struct drm_minor *minor = dev_get_drvdata(kdev);
>   	return to_i915(minor->dev);
>   }
>   
> -#ifdef CONFIG_PM
> -static u32 calc_residency(struct drm_i915_private *dev_priv,
> -			  i915_reg_t reg)
> -{
> -	intel_wakeref_t wakeref;
> -	u64 res = 0;
> -
> -	with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref)
> -		res = intel_rc6_residency_us(&to_gt(dev_priv)->rc6, reg);
> -
> -	return DIV_ROUND_CLOSEST_ULL(res, 1000);
> -}
> -
> -static ssize_t rc6_enable_show(struct device *kdev,
> -			       struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	unsigned int mask;
> -
> -	mask = 0;
> -	if (HAS_RC6(dev_priv))
> -		mask |= BIT(0);
> -	if (HAS_RC6p(dev_priv))
> -		mask |= BIT(1);
> -	if (HAS_RC6pp(dev_priv))
> -		mask |= BIT(2);
> -
> -	return sysfs_emit(buf, "%x\n", mask);
> -}
> -
> -static ssize_t rc6_residency_ms_show(struct device *kdev,
> -				     struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6);
> -	return sysfs_emit(buf, "%u\n", rc6_residency);
> -}
> -
> -static ssize_t rc6p_residency_ms_show(struct device *kdev,
> -				      struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6p_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6p);
> -	return sysfs_emit(buf, "%u\n", rc6p_residency);
> -}
> -
> -static ssize_t rc6pp_residency_ms_show(struct device *kdev,
> -				       struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6pp_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6pp);
> -	return sysfs_emit(buf, "%u\n", rc6pp_residency);
> -}
> -
> -static ssize_t media_rc6_residency_ms_show(struct device *kdev,
> -					   struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6_residency = calc_residency(dev_priv, VLV_GT_MEDIA_RC6);
> -	return sysfs_emit(buf, "%u\n", rc6_residency);
> -}
> -
> -static DEVICE_ATTR_RO(rc6_enable);
> -static DEVICE_ATTR_RO(rc6_residency_ms);
> -static DEVICE_ATTR_RO(rc6p_residency_ms);
> -static DEVICE_ATTR_RO(rc6pp_residency_ms);
> -static DEVICE_ATTR_RO(media_rc6_residency_ms);
> -
> -static struct attribute *rc6_attrs[] = {
> -	&dev_attr_rc6_enable.attr,
> -	&dev_attr_rc6_residency_ms.attr,
> -	NULL
> -};
> -
> -static const struct attribute_group rc6_attr_group = {
> -	.name = power_group_name,
> -	.attrs =  rc6_attrs
> -};
> -
> -static struct attribute *rc6p_attrs[] = {
> -	&dev_attr_rc6p_residency_ms.attr,
> -	&dev_attr_rc6pp_residency_ms.attr,
> -	NULL
> -};
> -
> -static const struct attribute_group rc6p_attr_group = {
> -	.name = power_group_name,
> -	.attrs =  rc6p_attrs
> -};
> -
> -static struct attribute *media_rc6_attrs[] = {
> -	&dev_attr_media_rc6_residency_ms.attr,
> -	NULL
> -};
> -
> -static const struct attribute_group media_rc6_attr_group = {
> -	.name = power_group_name,
> -	.attrs =  media_rc6_attrs
> -};
> -#endif
> -
>   static int l3_access_valid(struct drm_i915_private *i915, loff_t offset)
>   {
>   	if (!HAS_L3_DPF(i915))
> @@ -256,171 +155,6 @@ static const struct bin_attribute dpf_attrs_1 = {
>   	.private = (void *)1
>   };
>   
> -static ssize_t gt_act_freq_mhz_show(struct device *kdev,
> -				    struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_read_actual_frequency(rps));
> -}
> -
> -static ssize_t gt_cur_freq_mhz_show(struct device *kdev,
> -				    struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_requested_frequency(rps));
> -}
> -
> -static ssize_t gt_boost_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_boost_frequency(rps));
> -}
> -
> -static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
> -				       struct device_attribute *attr,
> -				       const char *buf, size_t count)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(dev_priv)->rps;
> -	ssize_t ret;
> -	u32 val;
> -
> -	ret = kstrtou32(buf, 0, &val);
> -	if (ret)
> -		return ret;
> -
> -	ret = intel_rps_set_boost_frequency(rps, val);
> -
> -	return ret ?: count;
> -}
> -
> -static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev,
> -				     struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(dev_priv)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_gpu_freq(rps, rps->efficient_freq));
> -}
> -
> -static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_gt *gt = to_gt(dev_priv);
> -	struct intel_rps *rps = &gt->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_max_frequency(rps));
> -}
> -
> -static ssize_t gt_max_freq_mhz_store(struct device *kdev,
> -				     struct device_attribute *attr,
> -				     const char *buf, size_t count)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_gt *gt = to_gt(dev_priv);
> -	struct intel_rps *rps = &gt->rps;
> -	ssize_t ret;
> -	u32 val;
> -
> -	ret = kstrtou32(buf, 0, &val);
> -	if (ret)
> -		return ret;
> -
> -	ret = intel_rps_set_max_frequency(rps, val);
> -
> -	return ret ?: count;
> -}
> -
> -static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_gt *gt = to_gt(i915);
> -	struct intel_rps *rps = &gt->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_min_frequency(rps));
> -}
> -
> -static ssize_t gt_min_freq_mhz_store(struct device *kdev,
> -				     struct device_attribute *attr,
> -				     const char *buf, size_t count)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -	ssize_t ret;
> -	u32 val;
> -
> -	ret = kstrtou32(buf, 0, &val);
> -	if (ret)
> -		return ret;
> -
> -	ret = intel_rps_set_min_frequency(rps, val);
> -
> -	return ret ?: count;
> -}
> -
> -static DEVICE_ATTR_RO(gt_act_freq_mhz);
> -static DEVICE_ATTR_RO(gt_cur_freq_mhz);
> -static DEVICE_ATTR_RW(gt_boost_freq_mhz);
> -static DEVICE_ATTR_RW(gt_max_freq_mhz);
> -static DEVICE_ATTR_RW(gt_min_freq_mhz);
> -
> -static DEVICE_ATTR_RO(vlv_rpe_freq_mhz);
> -
> -static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf);
> -static DEVICE_ATTR(gt_RP0_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
> -static DEVICE_ATTR(gt_RP1_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
> -static DEVICE_ATTR(gt_RPn_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
> -
> -/* For now we have a static number of RP states */
> -static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(dev_priv)->rps;
> -	u32 val;
> -
> -	if (attr == &dev_attr_gt_RP0_freq_mhz)
> -		val = intel_rps_get_rp0_frequency(rps);
> -	else if (attr == &dev_attr_gt_RP1_freq_mhz)
> -		val = intel_rps_get_rp1_frequency(rps);
> -	else if (attr == &dev_attr_gt_RPn_freq_mhz)
> -		val = intel_rps_get_rpn_frequency(rps);
> -	else
> -		BUG();
> -
> -	return sysfs_emit(buf, "%d\n", val);
> -}
> -
> -static const struct attribute * const gen6_attrs[] = {
> -	&dev_attr_gt_act_freq_mhz.attr,
> -	&dev_attr_gt_cur_freq_mhz.attr,
> -	&dev_attr_gt_boost_freq_mhz.attr,
> -	&dev_attr_gt_max_freq_mhz.attr,
> -	&dev_attr_gt_min_freq_mhz.attr,
> -	&dev_attr_gt_RP0_freq_mhz.attr,
> -	&dev_attr_gt_RP1_freq_mhz.attr,
> -	&dev_attr_gt_RPn_freq_mhz.attr,
> -	NULL,
> -};
> -
> -static const struct attribute * const vlv_attrs[] = {
> -	&dev_attr_gt_act_freq_mhz.attr,
> -	&dev_attr_gt_cur_freq_mhz.attr,
> -	&dev_attr_gt_boost_freq_mhz.attr,
> -	&dev_attr_gt_max_freq_mhz.attr,
> -	&dev_attr_gt_min_freq_mhz.attr,
> -	&dev_attr_gt_RP0_freq_mhz.attr,
> -	&dev_attr_gt_RP1_freq_mhz.attr,
> -	&dev_attr_gt_RPn_freq_mhz.attr,
> -	&dev_attr_vlv_rpe_freq_mhz.attr,
> -	NULL,
> -};
> -
>   #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
>   
>   static ssize_t error_state_read(struct file *filp, struct kobject *kobj,
> @@ -486,34 +220,16 @@ static void i915_setup_error_capture(struct device *kdev) {}
>   static void i915_teardown_error_capture(struct device *kdev) {}
>   #endif
>   
> +static struct kobject *i915_setup_gt_sysfs(struct kobject *parent)
> +{
> +	return kobject_create_and_add("gt", parent);
> +}
> +
>   void i915_setup_sysfs(struct drm_i915_private *dev_priv)
>   {
>   	struct device *kdev = dev_priv->drm.primary->kdev;
>   	int ret;
>   
> -#ifdef CONFIG_PM
> -	if (HAS_RC6(dev_priv)) {
> -		ret = sysfs_merge_group(&kdev->kobj,
> -					&rc6_attr_group);
> -		if (ret)
> -			drm_err(&dev_priv->drm,
> -				"RC6 residency sysfs setup failed\n");
> -	}
> -	if (HAS_RC6p(dev_priv)) {
> -		ret = sysfs_merge_group(&kdev->kobj,
> -					&rc6p_attr_group);
> -		if (ret)
> -			drm_err(&dev_priv->drm,
> -				"RC6p residency sysfs setup failed\n");
> -	}
> -	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
> -		ret = sysfs_merge_group(&kdev->kobj,
> -					&media_rc6_attr_group);
> -		if (ret)
> -			drm_err(&dev_priv->drm,
> -				"Media RC6 residency sysfs setup failed\n");
> -	}
> -#endif
>   	if (HAS_L3_DPF(dev_priv)) {
>   		ret = device_create_bin_file(kdev, &dpf_attrs);
>   		if (ret)
> @@ -529,13 +245,10 @@ void i915_setup_sysfs(struct drm_i915_private *dev_priv)
>   		}
>   	}
>   
> -	ret = 0;
> -	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
> -		ret = sysfs_create_files(&kdev->kobj, vlv_attrs);
> -	else if (GRAPHICS_VER(dev_priv) >= 6)
> -		ret = sysfs_create_files(&kdev->kobj, gen6_attrs);
> -	if (ret)
> -		drm_err(&dev_priv->drm, "RPS sysfs setup failed\n");
> +	dev_priv->sysfs_gt = i915_setup_gt_sysfs(&kdev->kobj);
> +	if (!dev_priv->sysfs_gt)
> +		drm_err(&dev_priv->drm,
> +			"failed to register GT sysfs directory\n");
>   
>   	i915_setup_error_capture(kdev);
>   
> @@ -548,14 +261,6 @@ void i915_teardown_sysfs(struct drm_i915_private *dev_priv)
>   
>   	i915_teardown_error_capture(kdev);
>   
> -	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
> -		sysfs_remove_files(&kdev->kobj, vlv_attrs);
> -	else
> -		sysfs_remove_files(&kdev->kobj, gen6_attrs);
>   	device_remove_bin_file(kdev,  &dpf_attrs_1);
>   	device_remove_bin_file(kdev,  &dpf_attrs);
> -#ifdef CONFIG_PM
> -	sysfs_unmerge_group(&kdev->kobj, &rc6_attr_group);
> -	sysfs_unmerge_group(&kdev->kobj, &rc6p_attr_group);
> -#endif
>   }
> diff --git a/drivers/gpu/drm/i915/i915_sysfs.h b/drivers/gpu/drm/i915/i915_sysfs.h
> index 41afd4366416..243a17741e3f 100644
> --- a/drivers/gpu/drm/i915/i915_sysfs.h
> +++ b/drivers/gpu/drm/i915/i915_sysfs.h
> @@ -6,8 +6,11 @@
>   #ifndef __I915_SYSFS_H__
>   #define __I915_SYSFS_H__
>   
> +struct device;
>   struct drm_i915_private;
>   
> +struct drm_i915_private *kdev_minor_to_i915(struct device *kdev);
> +
>   void i915_setup_sysfs(struct drm_i915_private *i915);
>   void i915_teardown_sysfs(struct drm_i915_private *i915);

Looks good. Will be great to finally have this sysfs framework.

I'm not sure if the CI.CHECKPATCH warnings matter, but otherwise,

Reviewed-by : Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>

>   

Re: [PATCH v2 2/2] drm/i915/gt: make a gt sysfs group and move power management files

[Matt Roper]

On Thu, Jan 13, 2022 at 12:20:31AM +0200, Andi Shyti wrote:
> The GT has its own properties and in sysfs they should be grouped
> in the 'gt/' directory.
> 
> Create a 'gt/' directory in sysfs which will contain gt0...gtN
> directories related to each tile configured in the GPU. Move the
> power management files inside those directories.
> 
> The previous power management files are kept in their original
> root directory to avoid breaking the ABI. They point to the tile
> '0' and a warning message is printed whenever accessed to. The
> deprecated interface needs for the CONFIG_SYSFS_DEPRECATED_V2
> flag in order to be generated.
> 
> The new sysfs structure will have a similar layout for the 4 tile
> case:
> 
> /sys/.../card0
>          ├── gt
>          │   ├── gt0
>          │   │   ├── id
>          │   │   ├── rc6_enable
>          │   │   ├── rc6_residency_ms
>          │   │   ├── rps_act_freq_mhz
>          │   │   ├── rps_boost_freq_mhz
>          │   │   ├── rps_cur_freq_mhz
>          │   │   ├── rps_max_freq_mhz
>          │   │   ├── rps_min_freq_mhz
>          │   │   ├── rps_RP0_freq_mhz
>          │   │   ├── rps_RP1_freq_mhz
>          │   │   └── rps_RPn_freq_mhz
> 	 .   .
> 	 .   .
> 	 .   .
>          │   └── gt3
>          │       ├── id
>          │       ├── rc6_enable
>          │       ├── rc6_residency_ms
>          │       ├── rps_act_freq_mhz
>          │       ├── rps_boost_freq_mhz
>          │       ├── rps_cur_freq_mhz
>          │       ├── rps_max_freq_mhz
>          │       ├── rps_min_freq_mhz
>          │       ├── rps_RP0_freq_mhz
>          │       ├── rps_RP1_freq_mhz
>          │       └── rps_RPn_freq_mhz
>          ├── gt_act_freq_mhz   -+
>          ├── gt_boost_freq_mhz  |
>          ├── gt_cur_freq_mhz    |    Original interface
>          ├── gt_max_freq_mhz    +─-> kept as existing ABI;
>          ├── gt_min_freq_mhz    |    it points to gt0/
>          ├── gt_RP0_freq_mhz    |
>          └── gt_RP1_freq_mhz    |
>          └── gt_RPn_freq_mhz   -+
> 
> Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
> Cc: Matt Roper <matthew.d.roper@intel.com>
> Cc: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

Even though this is a pretty natural extension of sysfs entries we
already have in the driver today, it's still technically "new ABI" so I
think we need a link to the IGT changes that exercise it to make sure
it's working as expected.

Likewise we need a link to the real userspace consumer that is expecting
to use this (does some of the Level0 stuff use these knobs?).  If this
is one of those really rare cases where we never expect any specific
userspace software to use the ABI, but the intent is instead to let
sysadmins turn the knobs manually with custom shell scripts or whatever,
that would need to be justified in the commit message too.


Matt

> ---
>  drivers/gpu/drm/i915/Makefile         |   4 +-
>  drivers/gpu/drm/i915/gt/intel_gt.c    |   2 +
>  drivers/gpu/drm/i915/gt/sysfs_gt.c    | 126 +++++++++
>  drivers/gpu/drm/i915/gt/sysfs_gt.h    |  44 +++
>  drivers/gpu/drm/i915/gt/sysfs_gt_pm.c | 393 ++++++++++++++++++++++++++
>  drivers/gpu/drm/i915/gt/sysfs_gt_pm.h |  16 ++
>  drivers/gpu/drm/i915/i915_drv.h       |   2 +
>  drivers/gpu/drm/i915/i915_reg.h       |   1 +
>  drivers/gpu/drm/i915/i915_sysfs.c     | 315 +--------------------
>  drivers/gpu/drm/i915/i915_sysfs.h     |   3 +
>  10 files changed, 600 insertions(+), 306 deletions(-)
>  create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.c
>  create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.h
>  create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
>  create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
> 
> diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
> index aa86ac33effc..5fd203c626fc 100644
> --- a/drivers/gpu/drm/i915/Makefile
> +++ b/drivers/gpu/drm/i915/Makefile
> @@ -121,7 +121,9 @@ gt-y += \
>  	gt/intel_timeline.o \
>  	gt/intel_workarounds.o \
>  	gt/shmem_utils.o \
> -	gt/sysfs_engines.o
> +	gt/sysfs_engines.o \
> +	gt/sysfs_gt.o \
> +	gt/sysfs_gt_pm.o
>  # autogenerated null render state
>  gt-y += \
>  	gt/gen6_renderstate.o \
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
> index 17927da9e23e..2584c51c1c14 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt.c
> +++ b/drivers/gpu/drm/i915/gt/intel_gt.c
> @@ -25,6 +25,7 @@
>  #include "intel_rps.h"
>  #include "intel_uncore.h"
>  #include "shmem_utils.h"
> +#include "sysfs_gt.h"
>  #include "pxp/intel_pxp.h"
>  
>  static void
> @@ -453,6 +454,7 @@ void intel_gt_driver_register(struct intel_gt *gt)
>  	intel_rps_driver_register(&gt->rps);
>  
>  	intel_gt_debugfs_register(gt);
> +	intel_gt_sysfs_register(gt);
>  }
>  
>  static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size)
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt.c b/drivers/gpu/drm/i915/gt/sysfs_gt.c
> new file mode 100644
> index 000000000000..46cf033a53ec
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt.c
> @@ -0,0 +1,126 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#include <drm/drm_device.h>
> +#include <linux/device.h>
> +#include <linux/kobject.h>
> +#include <linux/printk.h>
> +#include <linux/sysfs.h>
> +
> +#include "i915_drv.h"
> +#include "i915_sysfs.h"
> +#include "intel_gt.h"
> +#include "intel_gt_types.h"
> +#include "intel_rc6.h"
> +
> +#include "sysfs_gt.h"
> +#include "sysfs_gt_pm.h"
> +
> +struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev,
> +					    const char *name)
> +{
> +	struct kobject *kobj = &dev->kobj;
> +
> +	/*
> +	 * We are interested at knowing from where the interface
> +	 * has been called, whether it's called from gt/ or from
> +	 * the parent directory.
> +	 * From the interface position it depends also the value of
> +	 * the private data.
> +	 * If the interface is called from gt/ then private data is
> +	 * of the "struct intel_gt *" type, otherwise it's * a
> +	 * "struct drm_i915_private *" type.
> +	 */
> +	if (!is_object_gt(kobj)) {
> +		struct drm_i915_private *i915 = kdev_minor_to_i915(dev);
> +
> +		pr_devel_ratelimited(DEPRECATED
> +			"%s (pid %d) is trying to access deprecated %s "
> +			"sysfs control, please use gt/gt<n>/%s instead\n",
> +			current->comm, task_pid_nr(current), name, name);
> +		return to_gt(i915);
> +	}
> +
> +	return kobj_to_gt(kobj);
> +}
> +
> +static struct kobject *gt_get_parent_obj(struct intel_gt *gt)
> +{
> +	return &gt->i915->drm.primary->kdev->kobj;
> +}
> +
> +static ssize_t id_show(struct device *dev,
> +		       struct device_attribute *attr,
> +		       char *buf)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +
> +	return sysfs_emit(buf, "%u\n", gt->info.id);
> +}
> +
> +static DEVICE_ATTR_RO(id);
> +
> +static void kobj_gt_release(struct kobject *kobj)
> +{
> +	kfree(kobj);
> +}
> +
> +static struct kobj_type kobj_gt_type = {
> +	.release = kobj_gt_release,
> +	.sysfs_ops = &kobj_sysfs_ops
> +};
> +
> +struct kobject *
> +intel_gt_create_kobj(struct intel_gt *gt, struct kobject *dir, const char *name)
> +{
> +	struct kobj_gt *kg;
> +
> +	kg = kzalloc(sizeof(*kg), GFP_KERNEL);
> +	if (!kg)
> +		return NULL;
> +
> +	kobject_init(&kg->base, &kobj_gt_type);
> +	kg->gt = gt;
> +
> +	/* xfer ownership to sysfs tree */
> +	if (kobject_add(&kg->base, dir, "%s", name)) {
> +		kobject_put(&kg->base);
> +		return NULL;
> +	}
> +
> +	return &kg->base; /* borrowed ref */
> +}
> +
> +void intel_gt_sysfs_register(struct intel_gt *gt)
> +{
> +	struct kobject *dir;
> +	char name[80];
> +
> +	/*
> +	 * We need to make things right with the
> +	 * ABI compatibility. The files were originally
> +	 * generated under the parent directory.
> +	 *
> +	 * We generate the files only for gt 0
> +	 * to avoid duplicates.
> +	 */
> +	if (!gt->info.id)
> +		intel_gt_sysfs_pm_init(gt, gt_get_parent_obj(gt));
> +
> +	snprintf(name, sizeof(name), "gt%d", gt->info.id);
> +
> +	dir = intel_gt_create_kobj(gt, gt->i915->sysfs_gt, name);
> +	if (!dir) {
> +		drm_err(&gt->i915->drm,
> +			"failed to initialize %s sysfs root\n", name);
> +		return;
> +	}
> +
> +	if (sysfs_create_file(dir, &dev_attr_id.attr))
> +		drm_err(&gt->i915->drm,
> +			"failed to create sysfs %s info files\n", name);
> +
> +	intel_gt_sysfs_pm_init(gt, dir);
> +}
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt.h b/drivers/gpu/drm/i915/gt/sysfs_gt.h
> new file mode 100644
> index 000000000000..cd80a14bb14d
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt.h
> @@ -0,0 +1,44 @@
> +/* SPDX-License-Identifier: MIT */
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#ifndef __SYSFS_GT_H__
> +#define __SYSFS_GT_H__
> +
> +#include <linux/ctype.h>
> +#include <linux/kobject.h>
> +
> +#include "i915_gem.h" /* GEM_BUG_ON() */
> +
> +struct intel_gt;
> +
> +struct kobj_gt {
> +	struct kobject base;
> +	struct intel_gt *gt;
> +};
> +
> +static inline bool is_object_gt(struct kobject *kobj)
> +{
> +	bool b = !strncmp(kobj->name, "gt", 2);
> +
> +	GEM_BUG_ON(b && !isdigit(kobj->name[2]));
> +
> +	return b;
> +}
> +
> +struct kobject *
> +intel_gt_create_kobj(struct intel_gt *gt,
> +		     struct kobject *dir,
> +		     const char *name);
> +
> +static inline struct intel_gt *kobj_to_gt(struct kobject *kobj)
> +{
> +	return container_of(kobj, struct kobj_gt, base)->gt;
> +}
> +
> +void intel_gt_sysfs_register(struct intel_gt *gt);
> +struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev,
> +					    const char *name);
> +
> +#endif /* SYSFS_GT_H */
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
> new file mode 100644
> index 000000000000..6f4424be42d1
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
> @@ -0,0 +1,393 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#include <drm/drm_device.h>
> +#include <linux/sysfs.h>
> +#include <linux/printk.h>
> +
> +#include "i915_drv.h"
> +#include "intel_gt.h"
> +#include "intel_rc6.h"
> +#include "intel_rps.h"
> +#include "sysfs_gt.h"
> +#include "sysfs_gt_pm.h"
> +
> +#ifdef CONFIG_PM
> +static u32 get_residency(struct intel_gt *gt, i915_reg_t reg)
> +{
> +	intel_wakeref_t wakeref;
> +	u64 res = 0;
> +
> +	with_intel_runtime_pm(gt->uncore->rpm, wakeref)
> +		res = intel_rc6_residency_us(&gt->rc6, reg);
> +
> +	return DIV_ROUND_CLOSEST_ULL(res, 1000);
> +}
> +
> +static ssize_t rc6_enable_show(struct device *dev,
> +			       struct device_attribute *attr,
> +			       char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u8 mask = 0;
> +
> +	if (HAS_RC6(gt->i915))
> +		mask |= BIT(0);
> +	if (HAS_RC6p(gt->i915))
> +		mask |= BIT(1);
> +	if (HAS_RC6pp(gt->i915))
> +		mask |= BIT(2);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%x\n", mask);
> +}
> +
> +static ssize_t rc6_residency_ms_show(struct device *dev,
> +				     struct device_attribute *attr,
> +				     char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6_residency = get_residency(gt, GEN6_GT_GFX_RC6);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6_residency);
> +}
> +
> +static ssize_t rc6p_residency_ms_show(struct device *dev,
> +				      struct device_attribute *attr,
> +				      char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6p_residency = get_residency(gt, GEN6_GT_GFX_RC6p);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6p_residency);
> +}
> +
> +static ssize_t rc6pp_residency_ms_show(struct device *dev,
> +				       struct device_attribute *attr,
> +				       char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6pp_residency = get_residency(gt, GEN6_GT_GFX_RC6pp);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6pp_residency);
> +}
> +
> +static ssize_t media_rc6_residency_ms_show(struct device *dev,
> +					   struct device_attribute *attr,
> +					   char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6_residency = get_residency(gt, VLV_GT_MEDIA_RC6);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6_residency);
> +}
> +
> +static DEVICE_ATTR_RO(rc6_enable);
> +static DEVICE_ATTR_RO(rc6_residency_ms);
> +static DEVICE_ATTR_RO(rc6p_residency_ms);
> +static DEVICE_ATTR_RO(rc6pp_residency_ms);
> +static DEVICE_ATTR_RO(media_rc6_residency_ms);
> +
> +static struct attribute *rc6_attrs[] = {
> +	&dev_attr_rc6_enable.attr,
> +	&dev_attr_rc6_residency_ms.attr,
> +	NULL
> +};
> +
> +static struct attribute *rc6p_attrs[] = {
> +	&dev_attr_rc6p_residency_ms.attr,
> +	&dev_attr_rc6pp_residency_ms.attr,
> +	NULL
> +};
> +
> +static struct attribute *media_rc6_attrs[] = {
> +	&dev_attr_media_rc6_residency_ms.attr,
> +	NULL
> +};
> +
> +static const struct attribute_group rc6_attr_group[] = {
> +	{ .name = power_group_name, .attrs = rc6_attrs },
> +	{ .attrs = rc6_attrs }
> +};
> +
> +static const struct attribute_group rc6p_attr_group[] = {
> +	{ .name = power_group_name, .attrs = rc6p_attrs },
> +	{ .attrs = rc6p_attrs }
> +};
> +
> +static const struct attribute_group media_rc6_attr_group[] = {
> +	{ .name = power_group_name, .attrs = media_rc6_attrs },
> +	{ .attrs = media_rc6_attrs }
> +};
> +
> +static int __intel_gt_sysfs_create_group(struct kobject *kobj,
> +					 const struct attribute_group *grp)
> +{
> +	int i = is_object_gt(kobj);
> +
> +	return i ? sysfs_create_group(kobj, &grp[i]) :
> +		   sysfs_merge_group(kobj, &grp[i]);
> +}
> +
> +static void intel_sysfs_rc6_init(struct intel_gt *gt, struct kobject *kobj)
> +{
> +	int ret;
> +
> +	if (!HAS_RC6(gt->i915))
> +		return;
> +
> +	ret = __intel_gt_sysfs_create_group(kobj, rc6_attr_group);
> +	if (ret)
> +		drm_err(&gt->i915->drm,
> +			"failed to create gt%u RC6 sysfs files\n", gt->info.id);
> +
> +	if (HAS_RC6p(gt->i915)) {
> +		ret = __intel_gt_sysfs_create_group(kobj, rc6p_attr_group);
> +		if (ret)
> +			drm_err(&gt->i915->drm,
> +				"failed to create gt%u RC6p sysfs files\n",
> +				gt->info.id);
> +	}
> +
> +	if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915)) {
> +		ret = __intel_gt_sysfs_create_group(kobj, media_rc6_attr_group);
> +		if (ret)
> +			drm_err(&gt->i915->drm,
> +				"failed to create media %u RC6 sysfs files\n",
> +				gt->info.id);
> +	}
> +}
> +#else
> +static void intel_sysfs_rc6_init(struct intel_gt *gt, struct kobject *kobj)
> +{
> +}
> +#endif /* CONFIG_PM */
> +
> +static ssize_t act_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr, char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			intel_rps_read_actual_frequency(&gt->rps));
> +}
> +
> +static ssize_t cur_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr, char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			 intel_rps_get_requested_frequency(rps));
> +}
> +
> +static ssize_t boost_freq_mhz_show(struct device *dev,
> +				   struct device_attribute *attr,
> +				   char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			 intel_rps_get_boost_frequency(rps));
> +}
> +
> +static ssize_t boost_freq_mhz_store(struct device *dev,
> +				    struct device_attribute *attr,
> +				    const char *buff, size_t count)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	bool boost = false;
> +	ssize_t ret;
> +	u32 val;
> +
> +	ret = kstrtou32(buff, 0, &val);
> +	if (ret)
> +		return ret;
> +
> +	/* Validate against (static) hardware limits */
> +	val = intel_freq_opcode(rps, val);
> +	if (val < rps->min_freq || val > rps->max_freq)
> +		return -EINVAL;
> +
> +	mutex_lock(&rps->lock);
> +	if (val != rps->boost_freq) {
> +		rps->boost_freq = val;
> +		boost = atomic_read(&rps->num_waiters);
> +	}
> +	mutex_unlock(&rps->lock);
> +	if (boost)
> +		schedule_work(&rps->work);
> +
> +	return count;
> +}
> +
> +static ssize_t vlv_rpe_freq_mhz_show(struct device *dev,
> +				     struct device_attribute *attr, char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			intel_gpu_freq(rps, rps->efficient_freq));
> +}
> +
> +static ssize_t max_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr,
> +				 char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return sysfs_emit(buff, "%d\n", intel_rps_get_max_frequency(rps));
> +}
> +
> +static ssize_t max_freq_mhz_store(struct device *dev,
> +				  struct device_attribute *attr,
> +				  const char *buff, size_t count)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	ssize_t ret;
> +	u32 val;
> +
> +	ret = kstrtou32(buff, 0, &val);
> +	if (ret)
> +		return ret;
> +
> +	ret = intel_rps_set_max_frequency(rps, val);
> +
> +	return ret ?: count;
> +}
> +
> +static ssize_t min_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr,
> +				 char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return sysfs_emit(buff, "%d\n", intel_rps_get_min_frequency(rps));
> +}
> +
> +static ssize_t min_freq_mhz_store(struct device *dev,
> +				  struct device_attribute *attr,
> +				  const char *buff, size_t count)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	ssize_t ret;
> +	u32 val;
> +
> +	ret = kstrtou32(buff, 0, &val);
> +	if (ret)
> +		return ret;
> +
> +	ret = intel_rps_set_min_frequency(rps, val);
> +
> +	return ret ?: count;
> +}
> +
> +#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
> +	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
> +	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)
> +
> +#define INTEL_GT_RPS_SYSFS_ATTR_RO(_name)				\
> +		INTEL_GT_RPS_SYSFS_ATTR(_name, 0444, _name##_show, NULL)
> +#define INTEL_GT_RPS_SYSFS_ATTR_RW(_name)				\
> +		INTEL_GT_RPS_SYSFS_ATTR(_name, 0644, _name##_show, _name##_store)
> +
> +static INTEL_GT_RPS_SYSFS_ATTR_RO(act_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RO(cur_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RW(boost_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RW(max_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RW(min_freq_mhz);
> +
> +static DEVICE_ATTR_RO(vlv_rpe_freq_mhz);
> +
> +static ssize_t rps_rp_mhz_show(struct device *dev,
> +			       struct device_attribute *attr,
> +			       char *buff);
> +
> +static INTEL_GT_RPS_SYSFS_ATTR(RP0_freq_mhz, 0444, rps_rp_mhz_show, NULL);
> +static INTEL_GT_RPS_SYSFS_ATTR(RP1_freq_mhz, 0444, rps_rp_mhz_show, NULL);
> +static INTEL_GT_RPS_SYSFS_ATTR(RPn_freq_mhz, 0444, rps_rp_mhz_show, NULL);
> +
> +#define GEN6_ATTR(s) { \
> +		&dev_attr_##s##_act_freq_mhz.attr, \
> +		&dev_attr_##s##_cur_freq_mhz.attr, \
> +		&dev_attr_##s##_boost_freq_mhz.attr, \
> +		&dev_attr_##s##_max_freq_mhz.attr, \
> +		&dev_attr_##s##_min_freq_mhz.attr, \
> +		&dev_attr_##s##_RP0_freq_mhz.attr, \
> +		&dev_attr_##s##_RP1_freq_mhz.attr, \
> +		&dev_attr_##s##_RPn_freq_mhz.attr, \
> +		NULL, \
> +	}
> +
> +#define GEN6_RPS_ATTR GEN6_ATTR(rps)
> +#define GEN6_GT_ATTR  GEN6_ATTR(gt)
> +
> +/* For now we have a static number of RP states */
> +static ssize_t rps_rp_mhz_show(struct device *dev,
> +			       struct device_attribute *attr,
> +			       char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	u32 val;
> +
> +	if (attr == &dev_attr_gt_RP0_freq_mhz ||
> +	    attr == &dev_attr_rps_RP0_freq_mhz) {
> +		val = intel_rps_get_rp0_frequency(rps);
> +	} else if (attr == &dev_attr_gt_RP1_freq_mhz ||
> +		   attr == &dev_attr_rps_RP1_freq_mhz) {
> +		   val = intel_rps_get_rp1_frequency(rps);
> +	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||
> +		   attr == &dev_attr_rps_RPn_freq_mhz) {
> +		   val = intel_rps_get_rpn_frequency(rps);
> +	} else {
> +		GEM_WARN_ON(1);
> +		return -ENODEV;
> +	}
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n", val);
> +}
> +
> +static const struct attribute * const gen6_rps_attrs[] = GEN6_RPS_ATTR;
> +static const struct attribute * const gen6_gt_attrs[]  = GEN6_GT_ATTR;
> +
> +static int intel_sysfs_rps_init(struct intel_gt *gt, struct kobject *kobj,
> +				const struct attribute * const *attrs)
> +{
> +	int ret;
> +
> +	if (GRAPHICS_VER(gt->i915) < 6)
> +		return 0;
> +
> +	ret = sysfs_create_files(kobj, attrs);
> +	if (ret)
> +		return ret;
> +
> +	if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915))
> +		ret = sysfs_create_file(kobj, &dev_attr_vlv_rpe_freq_mhz.attr);
> +
> +	return ret;
> +}
> +
> +void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj)
> +{
> +	int ret;
> +
> +	intel_sysfs_rc6_init(gt, kobj);
> +
> +	ret = is_object_gt(kobj) ?
> +	      intel_sysfs_rps_init(gt, kobj, gen6_rps_attrs) :
> +	      intel_sysfs_rps_init(gt, kobj, gen6_gt_attrs);
> +	if (ret)
> +		drm_err(&gt->i915->drm,
> +			"failed to create gt%u RPS sysfs files", gt->info.id);
> +}
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
> new file mode 100644
> index 000000000000..18c60d929e6d
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
> @@ -0,0 +1,16 @@
> +/* SPDX-License-Identifier: MIT */
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#ifndef __SYSFS_GT_PM_H__
> +#define __SYSFS_GT_PM_H__
> +
> +#include <linux/kobject.h>
> +
> +#include "intel_gt_types.h"
> +
> +void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj);
> +void intel_gt_sysfs_pm_remove(struct intel_gt *gt, struct kobject *kobj);
> +
> +#endif /* SYSFS_RC6_H */
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 14dbbc5ba9e4..595e2f41ba43 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -997,6 +997,8 @@ struct drm_i915_private {
>  #define I915_MAX_GT 4
>  	struct intel_gt *gt[I915_MAX_GT];
>  
> +	struct kobject *sysfs_gt;
> +
>  	struct {
>  		struct i915_gem_contexts {
>  			spinlock_t lock; /* locks list */
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 7c4013a0db61..12b2018e2407 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -8480,6 +8480,7 @@ enum {
>  #define   GEN6_AGGRESSIVE_TURBO			(0 << 15)
>  #define   GEN9_SW_REQ_UNSLICE_RATIO_SHIFT	23
>  #define   GEN9_IGNORE_SLICE_RATIO		(0 << 0)
> +#define   GEN12_SW_REQ_UNSLICE_RATIO_SHIFT	23
>  
>  #define GEN6_RC_VIDEO_FREQ			_MMIO(0xA00C)
>  #define GEN6_RC_CONTROL				_MMIO(0xA090)
> diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
> index fae4d1f4f275..d6687e33f29d 100644
> --- a/drivers/gpu/drm/i915/i915_sysfs.c
> +++ b/drivers/gpu/drm/i915/i915_sysfs.c
> @@ -38,113 +38,12 @@
>  #include "i915_sysfs.h"
>  #include "intel_pm.h"
>  
> -static inline struct drm_i915_private *kdev_minor_to_i915(struct device *kdev)
> +struct drm_i915_private *kdev_minor_to_i915(struct device *kdev)
>  {
>  	struct drm_minor *minor = dev_get_drvdata(kdev);
>  	return to_i915(minor->dev);
>  }
>  
> -#ifdef CONFIG_PM
> -static u32 calc_residency(struct drm_i915_private *dev_priv,
> -			  i915_reg_t reg)
> -{
> -	intel_wakeref_t wakeref;
> -	u64 res = 0;
> -
> -	with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref)
> -		res = intel_rc6_residency_us(&to_gt(dev_priv)->rc6, reg);
> -
> -	return DIV_ROUND_CLOSEST_ULL(res, 1000);
> -}
> -
> -static ssize_t rc6_enable_show(struct device *kdev,
> -			       struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	unsigned int mask;
> -
> -	mask = 0;
> -	if (HAS_RC6(dev_priv))
> -		mask |= BIT(0);
> -	if (HAS_RC6p(dev_priv))
> -		mask |= BIT(1);
> -	if (HAS_RC6pp(dev_priv))
> -		mask |= BIT(2);
> -
> -	return sysfs_emit(buf, "%x\n", mask);
> -}
> -
> -static ssize_t rc6_residency_ms_show(struct device *kdev,
> -				     struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6);
> -	return sysfs_emit(buf, "%u\n", rc6_residency);
> -}
> -
> -static ssize_t rc6p_residency_ms_show(struct device *kdev,
> -				      struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6p_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6p);
> -	return sysfs_emit(buf, "%u\n", rc6p_residency);
> -}
> -
> -static ssize_t rc6pp_residency_ms_show(struct device *kdev,
> -				       struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6pp_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6pp);
> -	return sysfs_emit(buf, "%u\n", rc6pp_residency);
> -}
> -
> -static ssize_t media_rc6_residency_ms_show(struct device *kdev,
> -					   struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6_residency = calc_residency(dev_priv, VLV_GT_MEDIA_RC6);
> -	return sysfs_emit(buf, "%u\n", rc6_residency);
> -}
> -
> -static DEVICE_ATTR_RO(rc6_enable);
> -static DEVICE_ATTR_RO(rc6_residency_ms);
> -static DEVICE_ATTR_RO(rc6p_residency_ms);
> -static DEVICE_ATTR_RO(rc6pp_residency_ms);
> -static DEVICE_ATTR_RO(media_rc6_residency_ms);
> -
> -static struct attribute *rc6_attrs[] = {
> -	&dev_attr_rc6_enable.attr,
> -	&dev_attr_rc6_residency_ms.attr,
> -	NULL
> -};
> -
> -static const struct attribute_group rc6_attr_group = {
> -	.name = power_group_name,
> -	.attrs =  rc6_attrs
> -};
> -
> -static struct attribute *rc6p_attrs[] = {
> -	&dev_attr_rc6p_residency_ms.attr,
> -	&dev_attr_rc6pp_residency_ms.attr,
> -	NULL
> -};
> -
> -static const struct attribute_group rc6p_attr_group = {
> -	.name = power_group_name,
> -	.attrs =  rc6p_attrs
> -};
> -
> -static struct attribute *media_rc6_attrs[] = {
> -	&dev_attr_media_rc6_residency_ms.attr,
> -	NULL
> -};
> -
> -static const struct attribute_group media_rc6_attr_group = {
> -	.name = power_group_name,
> -	.attrs =  media_rc6_attrs
> -};
> -#endif
> -
>  static int l3_access_valid(struct drm_i915_private *i915, loff_t offset)
>  {
>  	if (!HAS_L3_DPF(i915))
> @@ -256,171 +155,6 @@ static const struct bin_attribute dpf_attrs_1 = {
>  	.private = (void *)1
>  };
>  
> -static ssize_t gt_act_freq_mhz_show(struct device *kdev,
> -				    struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_read_actual_frequency(rps));
> -}
> -
> -static ssize_t gt_cur_freq_mhz_show(struct device *kdev,
> -				    struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_requested_frequency(rps));
> -}
> -
> -static ssize_t gt_boost_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_boost_frequency(rps));
> -}
> -
> -static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
> -				       struct device_attribute *attr,
> -				       const char *buf, size_t count)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(dev_priv)->rps;
> -	ssize_t ret;
> -	u32 val;
> -
> -	ret = kstrtou32(buf, 0, &val);
> -	if (ret)
> -		return ret;
> -
> -	ret = intel_rps_set_boost_frequency(rps, val);
> -
> -	return ret ?: count;
> -}
> -
> -static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev,
> -				     struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(dev_priv)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_gpu_freq(rps, rps->efficient_freq));
> -}
> -
> -static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_gt *gt = to_gt(dev_priv);
> -	struct intel_rps *rps = &gt->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_max_frequency(rps));
> -}
> -
> -static ssize_t gt_max_freq_mhz_store(struct device *kdev,
> -				     struct device_attribute *attr,
> -				     const char *buf, size_t count)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_gt *gt = to_gt(dev_priv);
> -	struct intel_rps *rps = &gt->rps;
> -	ssize_t ret;
> -	u32 val;
> -
> -	ret = kstrtou32(buf, 0, &val);
> -	if (ret)
> -		return ret;
> -
> -	ret = intel_rps_set_max_frequency(rps, val);
> -
> -	return ret ?: count;
> -}
> -
> -static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_gt *gt = to_gt(i915);
> -	struct intel_rps *rps = &gt->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_min_frequency(rps));
> -}
> -
> -static ssize_t gt_min_freq_mhz_store(struct device *kdev,
> -				     struct device_attribute *attr,
> -				     const char *buf, size_t count)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -	ssize_t ret;
> -	u32 val;
> -
> -	ret = kstrtou32(buf, 0, &val);
> -	if (ret)
> -		return ret;
> -
> -	ret = intel_rps_set_min_frequency(rps, val);
> -
> -	return ret ?: count;
> -}
> -
> -static DEVICE_ATTR_RO(gt_act_freq_mhz);
> -static DEVICE_ATTR_RO(gt_cur_freq_mhz);
> -static DEVICE_ATTR_RW(gt_boost_freq_mhz);
> -static DEVICE_ATTR_RW(gt_max_freq_mhz);
> -static DEVICE_ATTR_RW(gt_min_freq_mhz);
> -
> -static DEVICE_ATTR_RO(vlv_rpe_freq_mhz);
> -
> -static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf);
> -static DEVICE_ATTR(gt_RP0_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
> -static DEVICE_ATTR(gt_RP1_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
> -static DEVICE_ATTR(gt_RPn_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
> -
> -/* For now we have a static number of RP states */
> -static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(dev_priv)->rps;
> -	u32 val;
> -
> -	if (attr == &dev_attr_gt_RP0_freq_mhz)
> -		val = intel_rps_get_rp0_frequency(rps);
> -	else if (attr == &dev_attr_gt_RP1_freq_mhz)
> -		val = intel_rps_get_rp1_frequency(rps);
> -	else if (attr == &dev_attr_gt_RPn_freq_mhz)
> -		val = intel_rps_get_rpn_frequency(rps);
> -	else
> -		BUG();
> -
> -	return sysfs_emit(buf, "%d\n", val);
> -}
> -
> -static const struct attribute * const gen6_attrs[] = {
> -	&dev_attr_gt_act_freq_mhz.attr,
> -	&dev_attr_gt_cur_freq_mhz.attr,
> -	&dev_attr_gt_boost_freq_mhz.attr,
> -	&dev_attr_gt_max_freq_mhz.attr,
> -	&dev_attr_gt_min_freq_mhz.attr,
> -	&dev_attr_gt_RP0_freq_mhz.attr,
> -	&dev_attr_gt_RP1_freq_mhz.attr,
> -	&dev_attr_gt_RPn_freq_mhz.attr,
> -	NULL,
> -};
> -
> -static const struct attribute * const vlv_attrs[] = {
> -	&dev_attr_gt_act_freq_mhz.attr,
> -	&dev_attr_gt_cur_freq_mhz.attr,
> -	&dev_attr_gt_boost_freq_mhz.attr,
> -	&dev_attr_gt_max_freq_mhz.attr,
> -	&dev_attr_gt_min_freq_mhz.attr,
> -	&dev_attr_gt_RP0_freq_mhz.attr,
> -	&dev_attr_gt_RP1_freq_mhz.attr,
> -	&dev_attr_gt_RPn_freq_mhz.attr,
> -	&dev_attr_vlv_rpe_freq_mhz.attr,
> -	NULL,
> -};
> -
>  #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
>  
>  static ssize_t error_state_read(struct file *filp, struct kobject *kobj,
> @@ -486,34 +220,16 @@ static void i915_setup_error_capture(struct device *kdev) {}
>  static void i915_teardown_error_capture(struct device *kdev) {}
>  #endif
>  
> +static struct kobject *i915_setup_gt_sysfs(struct kobject *parent)
> +{
> +	return kobject_create_and_add("gt", parent);
> +}
> +
>  void i915_setup_sysfs(struct drm_i915_private *dev_priv)
>  {
>  	struct device *kdev = dev_priv->drm.primary->kdev;
>  	int ret;
>  
> -#ifdef CONFIG_PM
> -	if (HAS_RC6(dev_priv)) {
> -		ret = sysfs_merge_group(&kdev->kobj,
> -					&rc6_attr_group);
> -		if (ret)
> -			drm_err(&dev_priv->drm,
> -				"RC6 residency sysfs setup failed\n");
> -	}
> -	if (HAS_RC6p(dev_priv)) {
> -		ret = sysfs_merge_group(&kdev->kobj,
> -					&rc6p_attr_group);
> -		if (ret)
> -			drm_err(&dev_priv->drm,
> -				"RC6p residency sysfs setup failed\n");
> -	}
> -	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
> -		ret = sysfs_merge_group(&kdev->kobj,
> -					&media_rc6_attr_group);
> -		if (ret)
> -			drm_err(&dev_priv->drm,
> -				"Media RC6 residency sysfs setup failed\n");
> -	}
> -#endif
>  	if (HAS_L3_DPF(dev_priv)) {
>  		ret = device_create_bin_file(kdev, &dpf_attrs);
>  		if (ret)
> @@ -529,13 +245,10 @@ void i915_setup_sysfs(struct drm_i915_private *dev_priv)
>  		}
>  	}
>  
> -	ret = 0;
> -	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
> -		ret = sysfs_create_files(&kdev->kobj, vlv_attrs);
> -	else if (GRAPHICS_VER(dev_priv) >= 6)
> -		ret = sysfs_create_files(&kdev->kobj, gen6_attrs);
> -	if (ret)
> -		drm_err(&dev_priv->drm, "RPS sysfs setup failed\n");
> +	dev_priv->sysfs_gt = i915_setup_gt_sysfs(&kdev->kobj);
> +	if (!dev_priv->sysfs_gt)
> +		drm_err(&dev_priv->drm,
> +			"failed to register GT sysfs directory\n");
>  
>  	i915_setup_error_capture(kdev);
>  
> @@ -548,14 +261,6 @@ void i915_teardown_sysfs(struct drm_i915_private *dev_priv)
>  
>  	i915_teardown_error_capture(kdev);
>  
> -	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
> -		sysfs_remove_files(&kdev->kobj, vlv_attrs);
> -	else
> -		sysfs_remove_files(&kdev->kobj, gen6_attrs);
>  	device_remove_bin_file(kdev,  &dpf_attrs_1);
>  	device_remove_bin_file(kdev,  &dpf_attrs);
> -#ifdef CONFIG_PM
> -	sysfs_unmerge_group(&kdev->kobj, &rc6_attr_group);
> -	sysfs_unmerge_group(&kdev->kobj, &rc6p_attr_group);
> -#endif
>  }
> diff --git a/drivers/gpu/drm/i915/i915_sysfs.h b/drivers/gpu/drm/i915/i915_sysfs.h
> index 41afd4366416..243a17741e3f 100644
> --- a/drivers/gpu/drm/i915/i915_sysfs.h
> +++ b/drivers/gpu/drm/i915/i915_sysfs.h
> @@ -6,8 +6,11 @@
>  #ifndef __I915_SYSFS_H__
>  #define __I915_SYSFS_H__
>  
> +struct device;
>  struct drm_i915_private;
>  
> +struct drm_i915_private *kdev_minor_to_i915(struct device *kdev);
> +
>  void i915_setup_sysfs(struct drm_i915_private *i915);
>  void i915_teardown_sysfs(struct drm_i915_private *i915);
>  
> -- 
> 2.34.1
> 

-- 
Matt Roper
Graphics Software Engineer
VTT-OSGC Platform Enablement
Intel Corporation
(916) 356-2795

Re: [Intel-gfx] [PATCH v2 2/2] drm/i915/gt: make a gt sysfs group and move power management files

[Matt Roper]

On Thu, Jan 13, 2022 at 12:20:31AM +0200, Andi Shyti wrote:
> The GT has its own properties and in sysfs they should be grouped
> in the 'gt/' directory.
> 
> Create a 'gt/' directory in sysfs which will contain gt0...gtN
> directories related to each tile configured in the GPU. Move the
> power management files inside those directories.
> 
> The previous power management files are kept in their original
> root directory to avoid breaking the ABI. They point to the tile
> '0' and a warning message is printed whenever accessed to. The
> deprecated interface needs for the CONFIG_SYSFS_DEPRECATED_V2
> flag in order to be generated.
> 
> The new sysfs structure will have a similar layout for the 4 tile
> case:
> 
> /sys/.../card0
>          ├── gt
>          │   ├── gt0
>          │   │   ├── id
>          │   │   ├── rc6_enable
>          │   │   ├── rc6_residency_ms
>          │   │   ├── rps_act_freq_mhz
>          │   │   ├── rps_boost_freq_mhz
>          │   │   ├── rps_cur_freq_mhz
>          │   │   ├── rps_max_freq_mhz
>          │   │   ├── rps_min_freq_mhz
>          │   │   ├── rps_RP0_freq_mhz
>          │   │   ├── rps_RP1_freq_mhz
>          │   │   └── rps_RPn_freq_mhz
> 	 .   .
> 	 .   .
> 	 .   .
>          │   └── gt3
>          │       ├── id
>          │       ├── rc6_enable
>          │       ├── rc6_residency_ms
>          │       ├── rps_act_freq_mhz
>          │       ├── rps_boost_freq_mhz
>          │       ├── rps_cur_freq_mhz
>          │       ├── rps_max_freq_mhz
>          │       ├── rps_min_freq_mhz
>          │       ├── rps_RP0_freq_mhz
>          │       ├── rps_RP1_freq_mhz
>          │       └── rps_RPn_freq_mhz
>          ├── gt_act_freq_mhz   -+
>          ├── gt_boost_freq_mhz  |
>          ├── gt_cur_freq_mhz    |    Original interface
>          ├── gt_max_freq_mhz    +─-> kept as existing ABI;
>          ├── gt_min_freq_mhz    |    it points to gt0/
>          ├── gt_RP0_freq_mhz    |
>          └── gt_RP1_freq_mhz    |
>          └── gt_RPn_freq_mhz   -+
> 
> Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
> Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
> Cc: Matt Roper <matthew.d.roper@intel.com>
> Cc: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

Even though this is a pretty natural extension of sysfs entries we
already have in the driver today, it's still technically "new ABI" so I
think we need a link to the IGT changes that exercise it to make sure
it's working as expected.

Likewise we need a link to the real userspace consumer that is expecting
to use this (does some of the Level0 stuff use these knobs?).  If this
is one of those really rare cases where we never expect any specific
userspace software to use the ABI, but the intent is instead to let
sysadmins turn the knobs manually with custom shell scripts or whatever,
that would need to be justified in the commit message too.


Matt

> ---
>  drivers/gpu/drm/i915/Makefile         |   4 +-
>  drivers/gpu/drm/i915/gt/intel_gt.c    |   2 +
>  drivers/gpu/drm/i915/gt/sysfs_gt.c    | 126 +++++++++
>  drivers/gpu/drm/i915/gt/sysfs_gt.h    |  44 +++
>  drivers/gpu/drm/i915/gt/sysfs_gt_pm.c | 393 ++++++++++++++++++++++++++
>  drivers/gpu/drm/i915/gt/sysfs_gt_pm.h |  16 ++
>  drivers/gpu/drm/i915/i915_drv.h       |   2 +
>  drivers/gpu/drm/i915/i915_reg.h       |   1 +
>  drivers/gpu/drm/i915/i915_sysfs.c     | 315 +--------------------
>  drivers/gpu/drm/i915/i915_sysfs.h     |   3 +
>  10 files changed, 600 insertions(+), 306 deletions(-)
>  create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.c
>  create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.h
>  create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
>  create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
> 
> diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
> index aa86ac33effc..5fd203c626fc 100644
> --- a/drivers/gpu/drm/i915/Makefile
> +++ b/drivers/gpu/drm/i915/Makefile
> @@ -121,7 +121,9 @@ gt-y += \
>  	gt/intel_timeline.o \
>  	gt/intel_workarounds.o \
>  	gt/shmem_utils.o \
> -	gt/sysfs_engines.o
> +	gt/sysfs_engines.o \
> +	gt/sysfs_gt.o \
> +	gt/sysfs_gt_pm.o
>  # autogenerated null render state
>  gt-y += \
>  	gt/gen6_renderstate.o \
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
> index 17927da9e23e..2584c51c1c14 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt.c
> +++ b/drivers/gpu/drm/i915/gt/intel_gt.c
> @@ -25,6 +25,7 @@
>  #include "intel_rps.h"
>  #include "intel_uncore.h"
>  #include "shmem_utils.h"
> +#include "sysfs_gt.h"
>  #include "pxp/intel_pxp.h"
>  
>  static void
> @@ -453,6 +454,7 @@ void intel_gt_driver_register(struct intel_gt *gt)
>  	intel_rps_driver_register(&gt->rps);
>  
>  	intel_gt_debugfs_register(gt);
> +	intel_gt_sysfs_register(gt);
>  }
>  
>  static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size)
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt.c b/drivers/gpu/drm/i915/gt/sysfs_gt.c
> new file mode 100644
> index 000000000000..46cf033a53ec
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt.c
> @@ -0,0 +1,126 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#include <drm/drm_device.h>
> +#include <linux/device.h>
> +#include <linux/kobject.h>
> +#include <linux/printk.h>
> +#include <linux/sysfs.h>
> +
> +#include "i915_drv.h"
> +#include "i915_sysfs.h"
> +#include "intel_gt.h"
> +#include "intel_gt_types.h"
> +#include "intel_rc6.h"
> +
> +#include "sysfs_gt.h"
> +#include "sysfs_gt_pm.h"
> +
> +struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev,
> +					    const char *name)
> +{
> +	struct kobject *kobj = &dev->kobj;
> +
> +	/*
> +	 * We are interested at knowing from where the interface
> +	 * has been called, whether it's called from gt/ or from
> +	 * the parent directory.
> +	 * From the interface position it depends also the value of
> +	 * the private data.
> +	 * If the interface is called from gt/ then private data is
> +	 * of the "struct intel_gt *" type, otherwise it's * a
> +	 * "struct drm_i915_private *" type.
> +	 */
> +	if (!is_object_gt(kobj)) {
> +		struct drm_i915_private *i915 = kdev_minor_to_i915(dev);
> +
> +		pr_devel_ratelimited(DEPRECATED
> +			"%s (pid %d) is trying to access deprecated %s "
> +			"sysfs control, please use gt/gt<n>/%s instead\n",
> +			current->comm, task_pid_nr(current), name, name);
> +		return to_gt(i915);
> +	}
> +
> +	return kobj_to_gt(kobj);
> +}
> +
> +static struct kobject *gt_get_parent_obj(struct intel_gt *gt)
> +{
> +	return &gt->i915->drm.primary->kdev->kobj;
> +}
> +
> +static ssize_t id_show(struct device *dev,
> +		       struct device_attribute *attr,
> +		       char *buf)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +
> +	return sysfs_emit(buf, "%u\n", gt->info.id);
> +}
> +
> +static DEVICE_ATTR_RO(id);
> +
> +static void kobj_gt_release(struct kobject *kobj)
> +{
> +	kfree(kobj);
> +}
> +
> +static struct kobj_type kobj_gt_type = {
> +	.release = kobj_gt_release,
> +	.sysfs_ops = &kobj_sysfs_ops
> +};
> +
> +struct kobject *
> +intel_gt_create_kobj(struct intel_gt *gt, struct kobject *dir, const char *name)
> +{
> +	struct kobj_gt *kg;
> +
> +	kg = kzalloc(sizeof(*kg), GFP_KERNEL);
> +	if (!kg)
> +		return NULL;
> +
> +	kobject_init(&kg->base, &kobj_gt_type);
> +	kg->gt = gt;
> +
> +	/* xfer ownership to sysfs tree */
> +	if (kobject_add(&kg->base, dir, "%s", name)) {
> +		kobject_put(&kg->base);
> +		return NULL;
> +	}
> +
> +	return &kg->base; /* borrowed ref */
> +}
> +
> +void intel_gt_sysfs_register(struct intel_gt *gt)
> +{
> +	struct kobject *dir;
> +	char name[80];
> +
> +	/*
> +	 * We need to make things right with the
> +	 * ABI compatibility. The files were originally
> +	 * generated under the parent directory.
> +	 *
> +	 * We generate the files only for gt 0
> +	 * to avoid duplicates.
> +	 */
> +	if (!gt->info.id)
> +		intel_gt_sysfs_pm_init(gt, gt_get_parent_obj(gt));
> +
> +	snprintf(name, sizeof(name), "gt%d", gt->info.id);
> +
> +	dir = intel_gt_create_kobj(gt, gt->i915->sysfs_gt, name);
> +	if (!dir) {
> +		drm_err(&gt->i915->drm,
> +			"failed to initialize %s sysfs root\n", name);
> +		return;
> +	}
> +
> +	if (sysfs_create_file(dir, &dev_attr_id.attr))
> +		drm_err(&gt->i915->drm,
> +			"failed to create sysfs %s info files\n", name);
> +
> +	intel_gt_sysfs_pm_init(gt, dir);
> +}
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt.h b/drivers/gpu/drm/i915/gt/sysfs_gt.h
> new file mode 100644
> index 000000000000..cd80a14bb14d
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt.h
> @@ -0,0 +1,44 @@
> +/* SPDX-License-Identifier: MIT */
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#ifndef __SYSFS_GT_H__
> +#define __SYSFS_GT_H__
> +
> +#include <linux/ctype.h>
> +#include <linux/kobject.h>
> +
> +#include "i915_gem.h" /* GEM_BUG_ON() */
> +
> +struct intel_gt;
> +
> +struct kobj_gt {
> +	struct kobject base;
> +	struct intel_gt *gt;
> +};
> +
> +static inline bool is_object_gt(struct kobject *kobj)
> +{
> +	bool b = !strncmp(kobj->name, "gt", 2);
> +
> +	GEM_BUG_ON(b && !isdigit(kobj->name[2]));
> +
> +	return b;
> +}
> +
> +struct kobject *
> +intel_gt_create_kobj(struct intel_gt *gt,
> +		     struct kobject *dir,
> +		     const char *name);
> +
> +static inline struct intel_gt *kobj_to_gt(struct kobject *kobj)
> +{
> +	return container_of(kobj, struct kobj_gt, base)->gt;
> +}
> +
> +void intel_gt_sysfs_register(struct intel_gt *gt);
> +struct intel_gt *intel_gt_sysfs_get_drvdata(struct device *dev,
> +					    const char *name);
> +
> +#endif /* SYSFS_GT_H */
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
> new file mode 100644
> index 000000000000..6f4424be42d1
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
> @@ -0,0 +1,393 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#include <drm/drm_device.h>
> +#include <linux/sysfs.h>
> +#include <linux/printk.h>
> +
> +#include "i915_drv.h"
> +#include "intel_gt.h"
> +#include "intel_rc6.h"
> +#include "intel_rps.h"
> +#include "sysfs_gt.h"
> +#include "sysfs_gt_pm.h"
> +
> +#ifdef CONFIG_PM
> +static u32 get_residency(struct intel_gt *gt, i915_reg_t reg)
> +{
> +	intel_wakeref_t wakeref;
> +	u64 res = 0;
> +
> +	with_intel_runtime_pm(gt->uncore->rpm, wakeref)
> +		res = intel_rc6_residency_us(&gt->rc6, reg);
> +
> +	return DIV_ROUND_CLOSEST_ULL(res, 1000);
> +}
> +
> +static ssize_t rc6_enable_show(struct device *dev,
> +			       struct device_attribute *attr,
> +			       char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u8 mask = 0;
> +
> +	if (HAS_RC6(gt->i915))
> +		mask |= BIT(0);
> +	if (HAS_RC6p(gt->i915))
> +		mask |= BIT(1);
> +	if (HAS_RC6pp(gt->i915))
> +		mask |= BIT(2);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%x\n", mask);
> +}
> +
> +static ssize_t rc6_residency_ms_show(struct device *dev,
> +				     struct device_attribute *attr,
> +				     char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6_residency = get_residency(gt, GEN6_GT_GFX_RC6);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6_residency);
> +}
> +
> +static ssize_t rc6p_residency_ms_show(struct device *dev,
> +				      struct device_attribute *attr,
> +				      char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6p_residency = get_residency(gt, GEN6_GT_GFX_RC6p);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6p_residency);
> +}
> +
> +static ssize_t rc6pp_residency_ms_show(struct device *dev,
> +				       struct device_attribute *attr,
> +				       char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6pp_residency = get_residency(gt, GEN6_GT_GFX_RC6pp);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6pp_residency);
> +}
> +
> +static ssize_t media_rc6_residency_ms_show(struct device *dev,
> +					   struct device_attribute *attr,
> +					   char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	u32 rc6_residency = get_residency(gt, VLV_GT_MEDIA_RC6);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%u\n", rc6_residency);
> +}
> +
> +static DEVICE_ATTR_RO(rc6_enable);
> +static DEVICE_ATTR_RO(rc6_residency_ms);
> +static DEVICE_ATTR_RO(rc6p_residency_ms);
> +static DEVICE_ATTR_RO(rc6pp_residency_ms);
> +static DEVICE_ATTR_RO(media_rc6_residency_ms);
> +
> +static struct attribute *rc6_attrs[] = {
> +	&dev_attr_rc6_enable.attr,
> +	&dev_attr_rc6_residency_ms.attr,
> +	NULL
> +};
> +
> +static struct attribute *rc6p_attrs[] = {
> +	&dev_attr_rc6p_residency_ms.attr,
> +	&dev_attr_rc6pp_residency_ms.attr,
> +	NULL
> +};
> +
> +static struct attribute *media_rc6_attrs[] = {
> +	&dev_attr_media_rc6_residency_ms.attr,
> +	NULL
> +};
> +
> +static const struct attribute_group rc6_attr_group[] = {
> +	{ .name = power_group_name, .attrs = rc6_attrs },
> +	{ .attrs = rc6_attrs }
> +};
> +
> +static const struct attribute_group rc6p_attr_group[] = {
> +	{ .name = power_group_name, .attrs = rc6p_attrs },
> +	{ .attrs = rc6p_attrs }
> +};
> +
> +static const struct attribute_group media_rc6_attr_group[] = {
> +	{ .name = power_group_name, .attrs = media_rc6_attrs },
> +	{ .attrs = media_rc6_attrs }
> +};
> +
> +static int __intel_gt_sysfs_create_group(struct kobject *kobj,
> +					 const struct attribute_group *grp)
> +{
> +	int i = is_object_gt(kobj);
> +
> +	return i ? sysfs_create_group(kobj, &grp[i]) :
> +		   sysfs_merge_group(kobj, &grp[i]);
> +}
> +
> +static void intel_sysfs_rc6_init(struct intel_gt *gt, struct kobject *kobj)
> +{
> +	int ret;
> +
> +	if (!HAS_RC6(gt->i915))
> +		return;
> +
> +	ret = __intel_gt_sysfs_create_group(kobj, rc6_attr_group);
> +	if (ret)
> +		drm_err(&gt->i915->drm,
> +			"failed to create gt%u RC6 sysfs files\n", gt->info.id);
> +
> +	if (HAS_RC6p(gt->i915)) {
> +		ret = __intel_gt_sysfs_create_group(kobj, rc6p_attr_group);
> +		if (ret)
> +			drm_err(&gt->i915->drm,
> +				"failed to create gt%u RC6p sysfs files\n",
> +				gt->info.id);
> +	}
> +
> +	if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915)) {
> +		ret = __intel_gt_sysfs_create_group(kobj, media_rc6_attr_group);
> +		if (ret)
> +			drm_err(&gt->i915->drm,
> +				"failed to create media %u RC6 sysfs files\n",
> +				gt->info.id);
> +	}
> +}
> +#else
> +static void intel_sysfs_rc6_init(struct intel_gt *gt, struct kobject *kobj)
> +{
> +}
> +#endif /* CONFIG_PM */
> +
> +static ssize_t act_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr, char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			intel_rps_read_actual_frequency(&gt->rps));
> +}
> +
> +static ssize_t cur_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr, char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			 intel_rps_get_requested_frequency(rps));
> +}
> +
> +static ssize_t boost_freq_mhz_show(struct device *dev,
> +				   struct device_attribute *attr,
> +				   char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			 intel_rps_get_boost_frequency(rps));
> +}
> +
> +static ssize_t boost_freq_mhz_store(struct device *dev,
> +				    struct device_attribute *attr,
> +				    const char *buff, size_t count)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	bool boost = false;
> +	ssize_t ret;
> +	u32 val;
> +
> +	ret = kstrtou32(buff, 0, &val);
> +	if (ret)
> +		return ret;
> +
> +	/* Validate against (static) hardware limits */
> +	val = intel_freq_opcode(rps, val);
> +	if (val < rps->min_freq || val > rps->max_freq)
> +		return -EINVAL;
> +
> +	mutex_lock(&rps->lock);
> +	if (val != rps->boost_freq) {
> +		rps->boost_freq = val;
> +		boost = atomic_read(&rps->num_waiters);
> +	}
> +	mutex_unlock(&rps->lock);
> +	if (boost)
> +		schedule_work(&rps->work);
> +
> +	return count;
> +}
> +
> +static ssize_t vlv_rpe_freq_mhz_show(struct device *dev,
> +				     struct device_attribute *attr, char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n",
> +			intel_gpu_freq(rps, rps->efficient_freq));
> +}
> +
> +static ssize_t max_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr,
> +				 char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return sysfs_emit(buff, "%d\n", intel_rps_get_max_frequency(rps));
> +}
> +
> +static ssize_t max_freq_mhz_store(struct device *dev,
> +				  struct device_attribute *attr,
> +				  const char *buff, size_t count)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	ssize_t ret;
> +	u32 val;
> +
> +	ret = kstrtou32(buff, 0, &val);
> +	if (ret)
> +		return ret;
> +
> +	ret = intel_rps_set_max_frequency(rps, val);
> +
> +	return ret ?: count;
> +}
> +
> +static ssize_t min_freq_mhz_show(struct device *dev,
> +				 struct device_attribute *attr,
> +				 char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +
> +	return sysfs_emit(buff, "%d\n", intel_rps_get_min_frequency(rps));
> +}
> +
> +static ssize_t min_freq_mhz_store(struct device *dev,
> +				  struct device_attribute *attr,
> +				  const char *buff, size_t count)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	ssize_t ret;
> +	u32 val;
> +
> +	ret = kstrtou32(buff, 0, &val);
> +	if (ret)
> +		return ret;
> +
> +	ret = intel_rps_set_min_frequency(rps, val);
> +
> +	return ret ?: count;
> +}
> +
> +#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
> +	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
> +	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)
> +
> +#define INTEL_GT_RPS_SYSFS_ATTR_RO(_name)				\
> +		INTEL_GT_RPS_SYSFS_ATTR(_name, 0444, _name##_show, NULL)
> +#define INTEL_GT_RPS_SYSFS_ATTR_RW(_name)				\
> +		INTEL_GT_RPS_SYSFS_ATTR(_name, 0644, _name##_show, _name##_store)
> +
> +static INTEL_GT_RPS_SYSFS_ATTR_RO(act_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RO(cur_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RW(boost_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RW(max_freq_mhz);
> +static INTEL_GT_RPS_SYSFS_ATTR_RW(min_freq_mhz);
> +
> +static DEVICE_ATTR_RO(vlv_rpe_freq_mhz);
> +
> +static ssize_t rps_rp_mhz_show(struct device *dev,
> +			       struct device_attribute *attr,
> +			       char *buff);
> +
> +static INTEL_GT_RPS_SYSFS_ATTR(RP0_freq_mhz, 0444, rps_rp_mhz_show, NULL);
> +static INTEL_GT_RPS_SYSFS_ATTR(RP1_freq_mhz, 0444, rps_rp_mhz_show, NULL);
> +static INTEL_GT_RPS_SYSFS_ATTR(RPn_freq_mhz, 0444, rps_rp_mhz_show, NULL);
> +
> +#define GEN6_ATTR(s) { \
> +		&dev_attr_##s##_act_freq_mhz.attr, \
> +		&dev_attr_##s##_cur_freq_mhz.attr, \
> +		&dev_attr_##s##_boost_freq_mhz.attr, \
> +		&dev_attr_##s##_max_freq_mhz.attr, \
> +		&dev_attr_##s##_min_freq_mhz.attr, \
> +		&dev_attr_##s##_RP0_freq_mhz.attr, \
> +		&dev_attr_##s##_RP1_freq_mhz.attr, \
> +		&dev_attr_##s##_RPn_freq_mhz.attr, \
> +		NULL, \
> +	}
> +
> +#define GEN6_RPS_ATTR GEN6_ATTR(rps)
> +#define GEN6_GT_ATTR  GEN6_ATTR(gt)
> +
> +/* For now we have a static number of RP states */
> +static ssize_t rps_rp_mhz_show(struct device *dev,
> +			       struct device_attribute *attr,
> +			       char *buff)
> +{
> +	struct intel_gt *gt = intel_gt_sysfs_get_drvdata(dev, attr->attr.name);
> +	struct intel_rps *rps = &gt->rps;
> +	u32 val;
> +
> +	if (attr == &dev_attr_gt_RP0_freq_mhz ||
> +	    attr == &dev_attr_rps_RP0_freq_mhz) {
> +		val = intel_rps_get_rp0_frequency(rps);
> +	} else if (attr == &dev_attr_gt_RP1_freq_mhz ||
> +		   attr == &dev_attr_rps_RP1_freq_mhz) {
> +		   val = intel_rps_get_rp1_frequency(rps);
> +	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||
> +		   attr == &dev_attr_rps_RPn_freq_mhz) {
> +		   val = intel_rps_get_rpn_frequency(rps);
> +	} else {
> +		GEM_WARN_ON(1);
> +		return -ENODEV;
> +	}
> +
> +	return scnprintf(buff, PAGE_SIZE, "%d\n", val);
> +}
> +
> +static const struct attribute * const gen6_rps_attrs[] = GEN6_RPS_ATTR;
> +static const struct attribute * const gen6_gt_attrs[]  = GEN6_GT_ATTR;
> +
> +static int intel_sysfs_rps_init(struct intel_gt *gt, struct kobject *kobj,
> +				const struct attribute * const *attrs)
> +{
> +	int ret;
> +
> +	if (GRAPHICS_VER(gt->i915) < 6)
> +		return 0;
> +
> +	ret = sysfs_create_files(kobj, attrs);
> +	if (ret)
> +		return ret;
> +
> +	if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915))
> +		ret = sysfs_create_file(kobj, &dev_attr_vlv_rpe_freq_mhz.attr);
> +
> +	return ret;
> +}
> +
> +void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj)
> +{
> +	int ret;
> +
> +	intel_sysfs_rc6_init(gt, kobj);
> +
> +	ret = is_object_gt(kobj) ?
> +	      intel_sysfs_rps_init(gt, kobj, gen6_rps_attrs) :
> +	      intel_sysfs_rps_init(gt, kobj, gen6_gt_attrs);
> +	if (ret)
> +		drm_err(&gt->i915->drm,
> +			"failed to create gt%u RPS sysfs files", gt->info.id);
> +}
> diff --git a/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
> new file mode 100644
> index 000000000000..18c60d929e6d
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/gt/sysfs_gt_pm.h
> @@ -0,0 +1,16 @@
> +/* SPDX-License-Identifier: MIT */
> +/*
> + * Copyright © 2020 Intel Corporation
> + */
> +
> +#ifndef __SYSFS_GT_PM_H__
> +#define __SYSFS_GT_PM_H__
> +
> +#include <linux/kobject.h>
> +
> +#include "intel_gt_types.h"
> +
> +void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj);
> +void intel_gt_sysfs_pm_remove(struct intel_gt *gt, struct kobject *kobj);
> +
> +#endif /* SYSFS_RC6_H */
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 14dbbc5ba9e4..595e2f41ba43 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -997,6 +997,8 @@ struct drm_i915_private {
>  #define I915_MAX_GT 4
>  	struct intel_gt *gt[I915_MAX_GT];
>  
> +	struct kobject *sysfs_gt;
> +
>  	struct {
>  		struct i915_gem_contexts {
>  			spinlock_t lock; /* locks list */
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 7c4013a0db61..12b2018e2407 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -8480,6 +8480,7 @@ enum {
>  #define   GEN6_AGGRESSIVE_TURBO			(0 << 15)
>  #define   GEN9_SW_REQ_UNSLICE_RATIO_SHIFT	23
>  #define   GEN9_IGNORE_SLICE_RATIO		(0 << 0)
> +#define   GEN12_SW_REQ_UNSLICE_RATIO_SHIFT	23
>  
>  #define GEN6_RC_VIDEO_FREQ			_MMIO(0xA00C)
>  #define GEN6_RC_CONTROL				_MMIO(0xA090)
> diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c
> index fae4d1f4f275..d6687e33f29d 100644
> --- a/drivers/gpu/drm/i915/i915_sysfs.c
> +++ b/drivers/gpu/drm/i915/i915_sysfs.c
> @@ -38,113 +38,12 @@
>  #include "i915_sysfs.h"
>  #include "intel_pm.h"
>  
> -static inline struct drm_i915_private *kdev_minor_to_i915(struct device *kdev)
> +struct drm_i915_private *kdev_minor_to_i915(struct device *kdev)
>  {
>  	struct drm_minor *minor = dev_get_drvdata(kdev);
>  	return to_i915(minor->dev);
>  }
>  
> -#ifdef CONFIG_PM
> -static u32 calc_residency(struct drm_i915_private *dev_priv,
> -			  i915_reg_t reg)
> -{
> -	intel_wakeref_t wakeref;
> -	u64 res = 0;
> -
> -	with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref)
> -		res = intel_rc6_residency_us(&to_gt(dev_priv)->rc6, reg);
> -
> -	return DIV_ROUND_CLOSEST_ULL(res, 1000);
> -}
> -
> -static ssize_t rc6_enable_show(struct device *kdev,
> -			       struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	unsigned int mask;
> -
> -	mask = 0;
> -	if (HAS_RC6(dev_priv))
> -		mask |= BIT(0);
> -	if (HAS_RC6p(dev_priv))
> -		mask |= BIT(1);
> -	if (HAS_RC6pp(dev_priv))
> -		mask |= BIT(2);
> -
> -	return sysfs_emit(buf, "%x\n", mask);
> -}
> -
> -static ssize_t rc6_residency_ms_show(struct device *kdev,
> -				     struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6);
> -	return sysfs_emit(buf, "%u\n", rc6_residency);
> -}
> -
> -static ssize_t rc6p_residency_ms_show(struct device *kdev,
> -				      struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6p_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6p);
> -	return sysfs_emit(buf, "%u\n", rc6p_residency);
> -}
> -
> -static ssize_t rc6pp_residency_ms_show(struct device *kdev,
> -				       struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6pp_residency = calc_residency(dev_priv, GEN6_GT_GFX_RC6pp);
> -	return sysfs_emit(buf, "%u\n", rc6pp_residency);
> -}
> -
> -static ssize_t media_rc6_residency_ms_show(struct device *kdev,
> -					   struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	u32 rc6_residency = calc_residency(dev_priv, VLV_GT_MEDIA_RC6);
> -	return sysfs_emit(buf, "%u\n", rc6_residency);
> -}
> -
> -static DEVICE_ATTR_RO(rc6_enable);
> -static DEVICE_ATTR_RO(rc6_residency_ms);
> -static DEVICE_ATTR_RO(rc6p_residency_ms);
> -static DEVICE_ATTR_RO(rc6pp_residency_ms);
> -static DEVICE_ATTR_RO(media_rc6_residency_ms);
> -
> -static struct attribute *rc6_attrs[] = {
> -	&dev_attr_rc6_enable.attr,
> -	&dev_attr_rc6_residency_ms.attr,
> -	NULL
> -};
> -
> -static const struct attribute_group rc6_attr_group = {
> -	.name = power_group_name,
> -	.attrs =  rc6_attrs
> -};
> -
> -static struct attribute *rc6p_attrs[] = {
> -	&dev_attr_rc6p_residency_ms.attr,
> -	&dev_attr_rc6pp_residency_ms.attr,
> -	NULL
> -};
> -
> -static const struct attribute_group rc6p_attr_group = {
> -	.name = power_group_name,
> -	.attrs =  rc6p_attrs
> -};
> -
> -static struct attribute *media_rc6_attrs[] = {
> -	&dev_attr_media_rc6_residency_ms.attr,
> -	NULL
> -};
> -
> -static const struct attribute_group media_rc6_attr_group = {
> -	.name = power_group_name,
> -	.attrs =  media_rc6_attrs
> -};
> -#endif
> -
>  static int l3_access_valid(struct drm_i915_private *i915, loff_t offset)
>  {
>  	if (!HAS_L3_DPF(i915))
> @@ -256,171 +155,6 @@ static const struct bin_attribute dpf_attrs_1 = {
>  	.private = (void *)1
>  };
>  
> -static ssize_t gt_act_freq_mhz_show(struct device *kdev,
> -				    struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_read_actual_frequency(rps));
> -}
> -
> -static ssize_t gt_cur_freq_mhz_show(struct device *kdev,
> -				    struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_requested_frequency(rps));
> -}
> -
> -static ssize_t gt_boost_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_boost_frequency(rps));
> -}
> -
> -static ssize_t gt_boost_freq_mhz_store(struct device *kdev,
> -				       struct device_attribute *attr,
> -				       const char *buf, size_t count)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(dev_priv)->rps;
> -	ssize_t ret;
> -	u32 val;
> -
> -	ret = kstrtou32(buf, 0, &val);
> -	if (ret)
> -		return ret;
> -
> -	ret = intel_rps_set_boost_frequency(rps, val);
> -
> -	return ret ?: count;
> -}
> -
> -static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev,
> -				     struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(dev_priv)->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_gpu_freq(rps, rps->efficient_freq));
> -}
> -
> -static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_gt *gt = to_gt(dev_priv);
> -	struct intel_rps *rps = &gt->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_max_frequency(rps));
> -}
> -
> -static ssize_t gt_max_freq_mhz_store(struct device *kdev,
> -				     struct device_attribute *attr,
> -				     const char *buf, size_t count)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_gt *gt = to_gt(dev_priv);
> -	struct intel_rps *rps = &gt->rps;
> -	ssize_t ret;
> -	u32 val;
> -
> -	ret = kstrtou32(buf, 0, &val);
> -	if (ret)
> -		return ret;
> -
> -	ret = intel_rps_set_max_frequency(rps, val);
> -
> -	return ret ?: count;
> -}
> -
> -static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_gt *gt = to_gt(i915);
> -	struct intel_rps *rps = &gt->rps;
> -
> -	return sysfs_emit(buf, "%d\n", intel_rps_get_min_frequency(rps));
> -}
> -
> -static ssize_t gt_min_freq_mhz_store(struct device *kdev,
> -				     struct device_attribute *attr,
> -				     const char *buf, size_t count)
> -{
> -	struct drm_i915_private *i915 = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(i915)->rps;
> -	ssize_t ret;
> -	u32 val;
> -
> -	ret = kstrtou32(buf, 0, &val);
> -	if (ret)
> -		return ret;
> -
> -	ret = intel_rps_set_min_frequency(rps, val);
> -
> -	return ret ?: count;
> -}
> -
> -static DEVICE_ATTR_RO(gt_act_freq_mhz);
> -static DEVICE_ATTR_RO(gt_cur_freq_mhz);
> -static DEVICE_ATTR_RW(gt_boost_freq_mhz);
> -static DEVICE_ATTR_RW(gt_max_freq_mhz);
> -static DEVICE_ATTR_RW(gt_min_freq_mhz);
> -
> -static DEVICE_ATTR_RO(vlv_rpe_freq_mhz);
> -
> -static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf);
> -static DEVICE_ATTR(gt_RP0_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
> -static DEVICE_ATTR(gt_RP1_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
> -static DEVICE_ATTR(gt_RPn_freq_mhz, S_IRUGO, gt_rp_mhz_show, NULL);
> -
> -/* For now we have a static number of RP states */
> -static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf)
> -{
> -	struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
> -	struct intel_rps *rps = &to_gt(dev_priv)->rps;
> -	u32 val;
> -
> -	if (attr == &dev_attr_gt_RP0_freq_mhz)
> -		val = intel_rps_get_rp0_frequency(rps);
> -	else if (attr == &dev_attr_gt_RP1_freq_mhz)
> -		val = intel_rps_get_rp1_frequency(rps);
> -	else if (attr == &dev_attr_gt_RPn_freq_mhz)
> -		val = intel_rps_get_rpn_frequency(rps);
> -	else
> -		BUG();
> -
> -	return sysfs_emit(buf, "%d\n", val);
> -}
> -
> -static const struct attribute * const gen6_attrs[] = {
> -	&dev_attr_gt_act_freq_mhz.attr,
> -	&dev_attr_gt_cur_freq_mhz.attr,
> -	&dev_attr_gt_boost_freq_mhz.attr,
> -	&dev_attr_gt_max_freq_mhz.attr,
> -	&dev_attr_gt_min_freq_mhz.attr,
> -	&dev_attr_gt_RP0_freq_mhz.attr,
> -	&dev_attr_gt_RP1_freq_mhz.attr,
> -	&dev_attr_gt_RPn_freq_mhz.attr,
> -	NULL,
> -};
> -
> -static const struct attribute * const vlv_attrs[] = {
> -	&dev_attr_gt_act_freq_mhz.attr,
> -	&dev_attr_gt_cur_freq_mhz.attr,
> -	&dev_attr_gt_boost_freq_mhz.attr,
> -	&dev_attr_gt_max_freq_mhz.attr,
> -	&dev_attr_gt_min_freq_mhz.attr,
> -	&dev_attr_gt_RP0_freq_mhz.attr,
> -	&dev_attr_gt_RP1_freq_mhz.attr,
> -	&dev_attr_gt_RPn_freq_mhz.attr,
> -	&dev_attr_vlv_rpe_freq_mhz.attr,
> -	NULL,
> -};
> -
>  #if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
>  
>  static ssize_t error_state_read(struct file *filp, struct kobject *kobj,
> @@ -486,34 +220,16 @@ static void i915_setup_error_capture(struct device *kdev) {}
>  static void i915_teardown_error_capture(struct device *kdev) {}
>  #endif
>  
> +static struct kobject *i915_setup_gt_sysfs(struct kobject *parent)
> +{
> +	return kobject_create_and_add("gt", parent);
> +}
> +
>  void i915_setup_sysfs(struct drm_i915_private *dev_priv)
>  {
>  	struct device *kdev = dev_priv->drm.primary->kdev;
>  	int ret;
>  
> -#ifdef CONFIG_PM
> -	if (HAS_RC6(dev_priv)) {
> -		ret = sysfs_merge_group(&kdev->kobj,
> -					&rc6_attr_group);
> -		if (ret)
> -			drm_err(&dev_priv->drm,
> -				"RC6 residency sysfs setup failed\n");
> -	}
> -	if (HAS_RC6p(dev_priv)) {
> -		ret = sysfs_merge_group(&kdev->kobj,
> -					&rc6p_attr_group);
> -		if (ret)
> -			drm_err(&dev_priv->drm,
> -				"RC6p residency sysfs setup failed\n");
> -	}
> -	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
> -		ret = sysfs_merge_group(&kdev->kobj,
> -					&media_rc6_attr_group);
> -		if (ret)
> -			drm_err(&dev_priv->drm,
> -				"Media RC6 residency sysfs setup failed\n");
> -	}
> -#endif
>  	if (HAS_L3_DPF(dev_priv)) {
>  		ret = device_create_bin_file(kdev, &dpf_attrs);
>  		if (ret)
> @@ -529,13 +245,10 @@ void i915_setup_sysfs(struct drm_i915_private *dev_priv)
>  		}
>  	}
>  
> -	ret = 0;
> -	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
> -		ret = sysfs_create_files(&kdev->kobj, vlv_attrs);
> -	else if (GRAPHICS_VER(dev_priv) >= 6)
> -		ret = sysfs_create_files(&kdev->kobj, gen6_attrs);
> -	if (ret)
> -		drm_err(&dev_priv->drm, "RPS sysfs setup failed\n");
> +	dev_priv->sysfs_gt = i915_setup_gt_sysfs(&kdev->kobj);
> +	if (!dev_priv->sysfs_gt)
> +		drm_err(&dev_priv->drm,
> +			"failed to register GT sysfs directory\n");
>  
>  	i915_setup_error_capture(kdev);
>  
> @@ -548,14 +261,6 @@ void i915_teardown_sysfs(struct drm_i915_private *dev_priv)
>  
>  	i915_teardown_error_capture(kdev);
>  
> -	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
> -		sysfs_remove_files(&kdev->kobj, vlv_attrs);
> -	else
> -		sysfs_remove_files(&kdev->kobj, gen6_attrs);
>  	device_remove_bin_file(kdev,  &dpf_attrs_1);
>  	device_remove_bin_file(kdev,  &dpf_attrs);
> -#ifdef CONFIG_PM
> -	sysfs_unmerge_group(&kdev->kobj, &rc6_attr_group);
> -	sysfs_unmerge_group(&kdev->kobj, &rc6p_attr_group);
> -#endif
>  }
> diff --git a/drivers/gpu/drm/i915/i915_sysfs.h b/drivers/gpu/drm/i915/i915_sysfs.h
> index 41afd4366416..243a17741e3f 100644
> --- a/drivers/gpu/drm/i915/i915_sysfs.h
> +++ b/drivers/gpu/drm/i915/i915_sysfs.h
> @@ -6,8 +6,11 @@
>  #ifndef __I915_SYSFS_H__
>  #define __I915_SYSFS_H__
>  
> +struct device;
>  struct drm_i915_private;
>  
> +struct drm_i915_private *kdev_minor_to_i915(struct device *kdev);
> +
>  void i915_setup_sysfs(struct drm_i915_private *i915);
>  void i915_teardown_sysfs(struct drm_i915_private *i915);
>  
> -- 
> 2.34.1
> 

-- 
Matt Roper
Graphics Software Engineer
VTT-OSGC Platform Enablement
Intel Corporation
(916) 356-2795

Re: [PATCH v2 2/2] drm/i915/gt: make a gt sysfs group and move power management files

[Andi Shyti]

Hi Matt,

> > The GT has its own properties and in sysfs they should be grouped
> > in the 'gt/' directory.
> > 
> > Create a 'gt/' directory in sysfs which will contain gt0...gtN
> > directories related to each tile configured in the GPU. Move the
> > power management files inside those directories.
> > 
> > The previous power management files are kept in their original
> > root directory to avoid breaking the ABI. They point to the tile
> > '0' and a warning message is printed whenever accessed to. The
> > deprecated interface needs for the CONFIG_SYSFS_DEPRECATED_V2
> > flag in order to be generated.
> > 
> > The new sysfs structure will have a similar layout for the 4 tile
> > case:
> > 
> > /sys/.../card0
> >          ├── gt
> >          │   ├── gt0
> >          │   │   ├── id
> >          │   │   ├── rc6_enable
> >          │   │   ├── rc6_residency_ms
> >          │   │   ├── rps_act_freq_mhz
> >          │   │   ├── rps_boost_freq_mhz
> >          │   │   ├── rps_cur_freq_mhz
> >          │   │   ├── rps_max_freq_mhz
> >          │   │   ├── rps_min_freq_mhz
> >          │   │   ├── rps_RP0_freq_mhz
> >          │   │   ├── rps_RP1_freq_mhz
> >          │   │   └── rps_RPn_freq_mhz
> > 	 .   .
> > 	 .   .
> > 	 .   .
> >          │   └── gt3
> >          │       ├── id
> >          │       ├── rc6_enable
> >          │       ├── rc6_residency_ms
> >          │       ├── rps_act_freq_mhz
> >          │       ├── rps_boost_freq_mhz
> >          │       ├── rps_cur_freq_mhz
> >          │       ├── rps_max_freq_mhz
> >          │       ├── rps_min_freq_mhz
> >          │       ├── rps_RP0_freq_mhz
> >          │       ├── rps_RP1_freq_mhz
> >          │       └── rps_RPn_freq_mhz
> >          ├── gt_act_freq_mhz   -+
> >          ├── gt_boost_freq_mhz  |
> >          ├── gt_cur_freq_mhz    |    Original interface
> >          ├── gt_max_freq_mhz    +─-> kept as existing ABI;
> >          ├── gt_min_freq_mhz    |    it points to gt0/
> >          ├── gt_RP0_freq_mhz    |
> >          └── gt_RP1_freq_mhz    |
> >          └── gt_RPn_freq_mhz   -+
> > 
> > Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
> > Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
> > Cc: Matt Roper <matthew.d.roper@intel.com>
> > Cc: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
> > Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> 
> Even though this is a pretty natural extension of sysfs entries we
> already have in the driver today, it's still technically "new ABI" so I
> think we need a link to the IGT changes that exercise it to make sure
> it's working as expected.

this patch should unblock the level0 sysman for DG1 and DG2,
currently being upstreamed, and this will be handled by Sujaritha
in the next days.

Besides there a patch that is adding an hwmon interface to i915
that depends on this one.

> Likewise we need a link to the real userspace consumer that is expecting
> to use this (does some of the Level0 stuff use these knobs?).  If this
> is one of those really rare cases where we never expect any specific
> userspace software to use the ABI, but the intent is instead to let
> sysadmins turn the knobs manually with custom shell scripts or whatever,
> that would need to be justified in the commit message too.

I think with the first multitile platform coming (next series)
this will be essential to control the power of multitile devices,
either manually or with tools, otherwise we will be able only to
access tile 0.

I can add a note in the commit message.

Andi

Re: [Intel-gfx] [PATCH v2 2/2] drm/i915/gt: make a gt sysfs group and move power management files

[Andi Shyti]

Hi Matt,

> > The GT has its own properties and in sysfs they should be grouped
> > in the 'gt/' directory.
> > 
> > Create a 'gt/' directory in sysfs which will contain gt0...gtN
> > directories related to each tile configured in the GPU. Move the
> > power management files inside those directories.
> > 
> > The previous power management files are kept in their original
> > root directory to avoid breaking the ABI. They point to the tile
> > '0' and a warning message is printed whenever accessed to. The
> > deprecated interface needs for the CONFIG_SYSFS_DEPRECATED_V2
> > flag in order to be generated.
> > 
> > The new sysfs structure will have a similar layout for the 4 tile
> > case:
> > 
> > /sys/.../card0
> >          ├── gt
> >          │   ├── gt0
> >          │   │   ├── id
> >          │   │   ├── rc6_enable
> >          │   │   ├── rc6_residency_ms
> >          │   │   ├── rps_act_freq_mhz
> >          │   │   ├── rps_boost_freq_mhz
> >          │   │   ├── rps_cur_freq_mhz
> >          │   │   ├── rps_max_freq_mhz
> >          │   │   ├── rps_min_freq_mhz
> >          │   │   ├── rps_RP0_freq_mhz
> >          │   │   ├── rps_RP1_freq_mhz
> >          │   │   └── rps_RPn_freq_mhz
> > 	 .   .
> > 	 .   .
> > 	 .   .
> >          │   └── gt3
> >          │       ├── id
> >          │       ├── rc6_enable
> >          │       ├── rc6_residency_ms
> >          │       ├── rps_act_freq_mhz
> >          │       ├── rps_boost_freq_mhz
> >          │       ├── rps_cur_freq_mhz
> >          │       ├── rps_max_freq_mhz
> >          │       ├── rps_min_freq_mhz
> >          │       ├── rps_RP0_freq_mhz
> >          │       ├── rps_RP1_freq_mhz
> >          │       └── rps_RPn_freq_mhz
> >          ├── gt_act_freq_mhz   -+
> >          ├── gt_boost_freq_mhz  |
> >          ├── gt_cur_freq_mhz    |    Original interface
> >          ├── gt_max_freq_mhz    +─-> kept as existing ABI;
> >          ├── gt_min_freq_mhz    |    it points to gt0/
> >          ├── gt_RP0_freq_mhz    |
> >          └── gt_RP1_freq_mhz    |
> >          └── gt_RPn_freq_mhz   -+
> > 
> > Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
> > Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
> > Cc: Matt Roper <matthew.d.roper@intel.com>
> > Cc: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
> > Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> 
> Even though this is a pretty natural extension of sysfs entries we
> already have in the driver today, it's still technically "new ABI" so I
> think we need a link to the IGT changes that exercise it to make sure
> it's working as expected.

this patch should unblock the level0 sysman for DG1 and DG2,
currently being upstreamed, and this will be handled by Sujaritha
in the next days.

Besides there a patch that is adding an hwmon interface to i915
that depends on this one.

> Likewise we need a link to the real userspace consumer that is expecting
> to use this (does some of the Level0 stuff use these knobs?).  If this
> is one of those really rare cases where we never expect any specific
> userspace software to use the ABI, but the intent is instead to let
> sysadmins turn the knobs manually with custom shell scripts or whatever,
> that would need to be justified in the commit message too.

I think with the first multitile platform coming (next series)
this will be essential to control the power of multitile devices,
either manually or with tools, otherwise we will be able only to
access tile 0.

I can add a note in the commit message.

Andi

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Introduce multitile support

[Patchwork]

== Series Details ==

Series: Introduce multitile support
URL   : https://patchwork.freedesktop.org/series/98806/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
cb606c1584e6 drm/i915: Prepare for multiple GTs
-:254: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'id__' - possible side-effects?
#254: FILE: drivers/gpu/drm/i915/gt/intel_gt.h:91:
+#define for_each_gt(gt__, i915__, id__) \
+	for ((id__) = 0; \
+	     (id__) < I915_MAX_GT; \
+	     (id__)++) \
+		for_each_if(((gt__) = (i915__)->gt[(id__)]))

total: 0 errors, 0 warnings, 1 checks, 436 lines checked
4590259a6006 drm/i915/gt: make a gt sysfs group and move power management files
-:106: WARNING:FILE_PATH_CHANGES: added, moved or deleted file(s), does MAINTAINERS need updating?
#106: 
new file mode 100644

-:586: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_mode' - possible side-effects?
#586: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:294:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:586: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_show' - possible side-effects?
#586: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:294:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:586: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_store' - possible side-effects?
#586: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:294:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:609: CHECK:CAMELCASE: Avoid CamelCase: <RPn_freq_mhz>
#609: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:317:
+static INTEL_GT_RPS_SYSFS_ATTR(RPn_freq_mhz, 0444, rps_rp_mhz_show, NULL);

-:619: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_##s##_RPn_freq_mhz>
#619: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:327:
+		&dev_attr_##s##_RPn_freq_mhz.attr, \

-:638: WARNING:SUSPECT_CODE_INDENT: suspect code indent for conditional statements (8, 19)
#638: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:346:
+	} else if (attr == &dev_attr_gt_RP1_freq_mhz ||
[...]
+		   val = intel_rps_get_rp1_frequency(rps);

-:641: WARNING:SUSPECT_CODE_INDENT: suspect code indent for conditional statements (8, 19)
#641: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:349:
+	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||
[...]
+		   val = intel_rps_get_rpn_frequency(rps);

-:641: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_gt_RPn_freq_mhz>
#641: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:349:
+	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||

-:642: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_rps_RPn_freq_mhz>
#642: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:350:
+		   attr == &dev_attr_rps_RPn_freq_mhz) {

total: 0 errors, 3 warnings, 7 checks, 984 lines checked

[Intel-gfx] ✗ Fi.CI.SPARSE: warning for Introduce multitile support

[Patchwork]

== Series Details ==

Series: Introduce multitile support
URL   : https://patchwork.freedesktop.org/series/98806/
State : warning

== Summary ==

$ dim sparse --fast origin/drm-tip
Sparse version: v0.6.2
Fast mode used, each commit won't be checked separately.

[Intel-gfx] ✓ Fi.CI.BAT: success for Introduce multitile support

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 7825 bytes --]

== Series Details ==

Series: Introduce multitile support
URL   : https://patchwork.freedesktop.org/series/98806/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_11075 -> Patchwork_21986
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/index.html

Participating hosts (44 -> 43)
------------------------------

  Additional (1): fi-kbl-soraka 
  Missing    (2): fi-bsw-cyan fi-icl-u2 

Known issues
------------

  Here are the changes found in Patchwork_21986 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@amdgpu/amd_basic@semaphore:
    - fi-bdw-5557u:       NOTRUN -> [SKIP][1] ([fdo#109271]) +31 similar issues
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/fi-bdw-5557u/igt@amdgpu/amd_basic@semaphore.html

  * igt@amdgpu/amd_cs_nop@sync-fork-compute0:
    - fi-snb-2600:        NOTRUN -> [SKIP][2] ([fdo#109271]) +17 similar issues
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/fi-snb-2600/igt@amdgpu/amd_cs_nop@sync-fork-compute0.html

  * igt@amdgpu/amd_prime@amd-to-i915:
    - fi-pnv-d510:        NOTRUN -> [SKIP][3] ([fdo#109271]) +17 similar issues
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/fi-pnv-d510/igt@amdgpu/amd_prime@amd-to-i915.html

  * igt@gem_exec_fence@basic-busy@bcs0:
    - fi-kbl-soraka:      NOTRUN -> [SKIP][4] ([fdo#109271]) +8 similar issues
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/fi-kbl-soraka/igt@gem_exec_fence@basic-busy@bcs0.html

  * igt@gem_huc_copy@huc-copy:
    - fi-kbl-soraka:      NOTRUN -> [SKIP][5] ([fdo#109271] / [i915#2190])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/fi-kbl-soraka/igt@gem_huc_copy@huc-copy.html

  * igt@gem_lmem_swapping@basic:
    - fi-kbl-soraka:      NOTRUN -> [SKIP][6] ([fdo#109271] / [i915#4613]) +3 similar issues
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/fi-kbl-soraka/igt@gem_lmem_swapping@basic.html

  * igt@i915_selftest@live@gt_pm:
    - fi-kbl-soraka:      NOTRUN -> [DMESG-FAIL][7] ([i915#1886] / [i915#2291])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/fi-kbl-soraka/igt@i915_selftest@live@gt_pm.html

  * igt@i915_selftest@live@hangcheck:
    - bat-dg1-5:          NOTRUN -> [DMESG-FAIL][8] ([i915#4494])
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/bat-dg1-5/igt@i915_selftest@live@hangcheck.html

  * igt@kms_chamelium@common-hpd-after-suspend:
    - fi-kbl-soraka:      NOTRUN -> [SKIP][9] ([fdo#109271] / [fdo#111827]) +8 similar issues
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/fi-kbl-soraka/igt@kms_chamelium@common-hpd-after-suspend.html

  * igt@kms_chamelium@dp-crc-fast:
    - fi-bdw-5557u:       NOTRUN -> [SKIP][10] ([fdo#109271] / [fdo#111827]) +8 similar issues
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/fi-bdw-5557u/igt@kms_chamelium@dp-crc-fast.html

  * igt@kms_frontbuffer_tracking@basic:
    - fi-cml-u2:          [PASS][11] -> [DMESG-WARN][12] ([i915#4269])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/fi-cml-u2/igt@kms_frontbuffer_tracking@basic.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/fi-cml-u2/igt@kms_frontbuffer_tracking@basic.html

  * igt@kms_pipe_crc_basic@compare-crc-sanitycheck-pipe-d:
    - fi-kbl-soraka:      NOTRUN -> [SKIP][13] ([fdo#109271] / [i915#533])
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/fi-kbl-soraka/igt@kms_pipe_crc_basic@compare-crc-sanitycheck-pipe-d.html

  
#### Possible fixes ####

  * igt@core_auth@basic-auth:
    - {bat-jsl-2}:        [DMESG-WARN][14] ([i915#4562]) -> [PASS][15]
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/bat-jsl-2/igt@core_auth@basic-auth.html
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/bat-jsl-2/igt@core_auth@basic-auth.html

  * igt@gem_exec_suspend@basic-s3@smem:
    - fi-bdw-5557u:       [INCOMPLETE][16] ([i915#146]) -> [PASS][17]
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/fi-bdw-5557u/igt@gem_exec_suspend@basic-s3@smem.html
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/fi-bdw-5557u/igt@gem_exec_suspend@basic-s3@smem.html

  * igt@i915_selftest@live@gt_engines:
    - bat-dg1-5:          [INCOMPLETE][18] ([i915#4418]) -> [PASS][19]
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/bat-dg1-5/igt@i915_selftest@live@gt_engines.html
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/bat-dg1-5/igt@i915_selftest@live@gt_engines.html

  * igt@i915_selftest@live@hangcheck:
    - {fi-ehl-2}:         [DMESG-FAIL][20] -> [PASS][21]
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/fi-ehl-2/igt@i915_selftest@live@hangcheck.html
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/fi-ehl-2/igt@i915_selftest@live@hangcheck.html
    - fi-snb-2600:        [INCOMPLETE][22] ([i915#3921]) -> [PASS][23]
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/fi-snb-2600/igt@i915_selftest@live@hangcheck.html
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/fi-snb-2600/igt@i915_selftest@live@hangcheck.html

  * igt@i915_selftest@live@hugepages:
    - {bat-adlp-6}:       [DMESG-WARN][24] ([i915#1888]) -> [PASS][25]
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/bat-adlp-6/igt@i915_selftest@live@hugepages.html
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/bat-adlp-6/igt@i915_selftest@live@hugepages.html

  * igt@i915_selftest@live@requests:
    - fi-pnv-d510:        [DMESG-FAIL][26] ([i915#2927]) -> [PASS][27]
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/fi-pnv-d510/igt@i915_selftest@live@requests.html
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/fi-pnv-d510/igt@i915_selftest@live@requests.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [i915#146]: https://gitlab.freedesktop.org/drm/intel/issues/146
  [i915#1886]: https://gitlab.freedesktop.org/drm/intel/issues/1886
  [i915#1888]: https://gitlab.freedesktop.org/drm/intel/issues/1888
  [i915#2190]: https://gitlab.freedesktop.org/drm/intel/issues/2190
  [i915#2291]: https://gitlab.freedesktop.org/drm/intel/issues/2291
  [i915#2927]: https://gitlab.freedesktop.org/drm/intel/issues/2927
  [i915#3921]: https://gitlab.freedesktop.org/drm/intel/issues/3921
  [i915#4269]: https://gitlab.freedesktop.org/drm/intel/issues/4269
  [i915#4418]: https://gitlab.freedesktop.org/drm/intel/issues/4418
  [i915#4494]: https://gitlab.freedesktop.org/drm/intel/issues/4494
  [i915#4562]: https://gitlab.freedesktop.org/drm/intel/issues/4562
  [i915#4613]: https://gitlab.freedesktop.org/drm/intel/issues/4613
  [i915#533]: https://gitlab.freedesktop.org/drm/intel/issues/533


Build changes
-------------

  * Linux: CI_DRM_11075 -> Patchwork_21986

  CI-20190529: 20190529
  CI_DRM_11075: 9b371f79eeb9a3867d2483e4038f22f89a854886 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_6326: ec75f64fcbcf4aac58fbf1bf629e8f59b19db4ce @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_21986: 4590259a6006ccec9a7cdd30f05dfe8519b2f108 @ git://anongit.freedesktop.org/gfx-ci/linux


== Linux commits ==

4590259a6006 drm/i915/gt: make a gt sysfs group and move power management files
cb606c1584e6 drm/i915: Prepare for multiple GTs

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/index.html

[-- Attachment #2: Type: text/html, Size: 9512 bytes --]

[Intel-gfx] ✓ Fi.CI.IGT: success for Introduce multitile support

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 30250 bytes --]

== Series Details ==

Series: Introduce multitile support
URL   : https://patchwork.freedesktop.org/series/98806/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_11075_full -> Patchwork_21986_full
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  

Participating hosts (10 -> 10)
------------------------------

  No changes in participating hosts

Known issues
------------

  Here are the changes found in Patchwork_21986_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@feature_discovery@psr2:
    - shard-iclb:         [PASS][1] -> [SKIP][2] ([i915#658])
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-iclb2/igt@feature_discovery@psr2.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb5/igt@feature_discovery@psr2.html

  * igt@gem_ctx_param@set-priority-not-supported:
    - shard-tglb:         NOTRUN -> [SKIP][3] ([fdo#109314])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@gem_ctx_param@set-priority-not-supported.html

  * igt@gem_ctx_persistence@many-contexts:
    - shard-tglb:         [PASS][4] -> [FAIL][5] ([i915#2410])
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-tglb3/igt@gem_ctx_persistence@many-contexts.html
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb7/igt@gem_ctx_persistence@many-contexts.html

  * igt@gem_eio@kms:
    - shard-tglb:         [PASS][6] -> [FAIL][7] ([i915#232])
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-tglb7/igt@gem_eio@kms.html
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb8/igt@gem_eio@kms.html

  * igt@gem_exec_balancer@parallel:
    - shard-iclb:         [PASS][8] -> [SKIP][9] ([i915#4525]) +1 similar issue
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-iclb4/igt@gem_exec_balancer@parallel.html
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb6/igt@gem_exec_balancer@parallel.html

  * igt@gem_exec_capture@pi@vcs0:
    - shard-skl:          NOTRUN -> [INCOMPLETE][10] ([i915#4547])
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl7/igt@gem_exec_capture@pi@vcs0.html

  * igt@gem_exec_capture@userptr:
    - shard-skl:          NOTRUN -> [DMESG-WARN][11] ([i915#1982])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl4/igt@gem_exec_capture@userptr.html

  * igt@gem_exec_fair@basic-deadline:
    - shard-glk:          [PASS][12] -> [FAIL][13] ([i915#2846])
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-glk7/igt@gem_exec_fair@basic-deadline.html
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-glk5/igt@gem_exec_fair@basic-deadline.html

  * igt@gem_exec_fair@basic-flow@rcs0:
    - shard-tglb:         [PASS][14] -> [FAIL][15] ([i915#2842])
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-tglb2/igt@gem_exec_fair@basic-flow@rcs0.html
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb2/igt@gem_exec_fair@basic-flow@rcs0.html

  * igt@gem_exec_fair@basic-none@vcs0:
    - shard-apl:          [PASS][16] -> [FAIL][17] ([i915#2842])
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-apl8/igt@gem_exec_fair@basic-none@vcs0.html
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-apl8/igt@gem_exec_fair@basic-none@vcs0.html

  * igt@gem_exec_fair@basic-none@vecs0:
    - shard-glk:          [PASS][18] -> [FAIL][19] ([i915#2842]) +1 similar issue
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-glk8/igt@gem_exec_fair@basic-none@vecs0.html
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-glk2/igt@gem_exec_fair@basic-none@vecs0.html

  * igt@gem_exec_fair@basic-throttle@rcs0:
    - shard-iclb:         [PASS][20] -> [FAIL][21] ([i915#2849])
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-iclb1/igt@gem_exec_fair@basic-throttle@rcs0.html
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb1/igt@gem_exec_fair@basic-throttle@rcs0.html

  * igt@gem_exec_whisper@basic-forked:
    - shard-glk:          [PASS][22] -> [DMESG-WARN][23] ([i915#118])
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-glk3/igt@gem_exec_whisper@basic-forked.html
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-glk8/igt@gem_exec_whisper@basic-forked.html

  * igt@gem_lmem_swapping@heavy-multi:
    - shard-skl:          NOTRUN -> [SKIP][24] ([fdo#109271] / [i915#4613]) +3 similar issues
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl3/igt@gem_lmem_swapping@heavy-multi.html

  * igt@gem_lmem_swapping@verify:
    - shard-tglb:         NOTRUN -> [SKIP][25] ([i915#4613])
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@gem_lmem_swapping@verify.html

  * igt@gem_pwrite@basic-exhaustion:
    - shard-skl:          NOTRUN -> [WARN][26] ([i915#2658]) +1 similar issue
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl9/igt@gem_pwrite@basic-exhaustion.html

  * igt@gem_pxp@reject-modify-context-protection-off-2:
    - shard-tglb:         NOTRUN -> [SKIP][27] ([i915#4270]) +1 similar issue
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@gem_pxp@reject-modify-context-protection-off-2.html

  * igt@gem_userptr_blits@dmabuf-sync:
    - shard-iclb:         NOTRUN -> [SKIP][28] ([i915#3323])
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb5/igt@gem_userptr_blits@dmabuf-sync.html
    - shard-tglb:         NOTRUN -> [SKIP][29] ([i915#3323])
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb2/igt@gem_userptr_blits@dmabuf-sync.html

  * igt@gen3_render_tiledx_blits:
    - shard-tglb:         NOTRUN -> [SKIP][30] ([fdo#109289])
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@gen3_render_tiledx_blits.html

  * igt@gen9_exec_parse@shadow-peek:
    - shard-tglb:         NOTRUN -> [SKIP][31] ([i915#2527] / [i915#2856]) +1 similar issue
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb2/igt@gen9_exec_parse@shadow-peek.html
    - shard-iclb:         NOTRUN -> [SKIP][32] ([i915#2856])
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb5/igt@gen9_exec_parse@shadow-peek.html

  * igt@i915_pm_dc@dc6-psr:
    - shard-iclb:         [PASS][33] -> [FAIL][34] ([i915#454])
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-iclb5/igt@i915_pm_dc@dc6-psr.html
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb3/igt@i915_pm_dc@dc6-psr.html

  * igt@i915_pm_rpm@modeset-pc8-residency-stress:
    - shard-kbl:          NOTRUN -> [SKIP][35] ([fdo#109271]) +13 similar issues
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl1/igt@i915_pm_rpm@modeset-pc8-residency-stress.html

  * igt@kms_big_fb@x-tiled-8bpp-rotate-90:
    - shard-tglb:         NOTRUN -> [SKIP][36] ([fdo#111614]) +1 similar issue
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@kms_big_fb@x-tiled-8bpp-rotate-90.html

  * igt@kms_big_fb@x-tiled-max-hw-stride-32bpp-rotate-0-hflip:
    - shard-apl:          NOTRUN -> [SKIP][37] ([fdo#109271] / [i915#3777])
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-apl4/igt@kms_big_fb@x-tiled-max-hw-stride-32bpp-rotate-0-hflip.html

  * igt@kms_big_fb@y-tiled-max-hw-stride-32bpp-rotate-180-hflip:
    - shard-skl:          NOTRUN -> [SKIP][38] ([fdo#109271] / [i915#3777])
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl3/igt@kms_big_fb@y-tiled-max-hw-stride-32bpp-rotate-180-hflip.html

  * igt@kms_big_fb@yf-tiled-max-hw-stride-32bpp-rotate-180-async-flip:
    - shard-skl:          NOTRUN -> [FAIL][39] ([i915#3743]) +1 similar issue
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl4/igt@kms_big_fb@yf-tiled-max-hw-stride-32bpp-rotate-180-async-flip.html

  * igt@kms_big_fb@yf-tiled-max-hw-stride-64bpp-rotate-0-hflip-async-flip:
    - shard-tglb:         NOTRUN -> [SKIP][40] ([fdo#111615])
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@kms_big_fb@yf-tiled-max-hw-stride-64bpp-rotate-0-hflip-async-flip.html

  * igt@kms_ccs@pipe-a-ccs-on-another-bo-y_tiled_gen12_rc_ccs_cc:
    - shard-skl:          NOTRUN -> [SKIP][41] ([fdo#109271] / [i915#3886]) +13 similar issues
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl10/igt@kms_ccs@pipe-a-ccs-on-another-bo-y_tiled_gen12_rc_ccs_cc.html

  * igt@kms_ccs@pipe-a-crc-primary-rotation-180-y_tiled_gen12_mc_ccs:
    - shard-apl:          NOTRUN -> [SKIP][42] ([fdo#109271] / [i915#3886])
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-apl4/igt@kms_ccs@pipe-a-crc-primary-rotation-180-y_tiled_gen12_mc_ccs.html

  * igt@kms_ccs@pipe-b-bad-aux-stride-y_tiled_gen12_rc_ccs:
    - shard-iclb:         NOTRUN -> [SKIP][43] ([fdo#109278]) +4 similar issues
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb5/igt@kms_ccs@pipe-b-bad-aux-stride-y_tiled_gen12_rc_ccs.html

  * igt@kms_ccs@pipe-b-bad-aux-stride-y_tiled_gen12_rc_ccs_cc:
    - shard-kbl:          NOTRUN -> [SKIP][44] ([fdo#109271] / [i915#3886]) +1 similar issue
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl1/igt@kms_ccs@pipe-b-bad-aux-stride-y_tiled_gen12_rc_ccs_cc.html

  * igt@kms_ccs@pipe-b-ccs-on-another-bo-y_tiled_gen12_mc_ccs:
    - shard-tglb:         NOTRUN -> [SKIP][45] ([i915#3689] / [i915#3886]) +1 similar issue
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@kms_ccs@pipe-b-ccs-on-another-bo-y_tiled_gen12_mc_ccs.html

  * igt@kms_chamelium@vga-hpd-after-suspend:
    - shard-skl:          NOTRUN -> [SKIP][46] ([fdo#109271] / [fdo#111827]) +22 similar issues
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl4/igt@kms_chamelium@vga-hpd-after-suspend.html

  * igt@kms_color_chamelium@pipe-a-ctm-max:
    - shard-apl:          NOTRUN -> [SKIP][47] ([fdo#109271] / [fdo#111827]) +1 similar issue
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-apl4/igt@kms_color_chamelium@pipe-a-ctm-max.html

  * igt@kms_color_chamelium@pipe-b-ctm-0-75:
    - shard-kbl:          NOTRUN -> [SKIP][48] ([fdo#109271] / [fdo#111827])
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl1/igt@kms_color_chamelium@pipe-b-ctm-0-75.html

  * igt@kms_color_chamelium@pipe-d-ctm-red-to-blue:
    - shard-tglb:         NOTRUN -> [SKIP][49] ([fdo#109284] / [fdo#111827]) +3 similar issues
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb2/igt@kms_color_chamelium@pipe-d-ctm-red-to-blue.html
    - shard-iclb:         NOTRUN -> [SKIP][50] ([fdo#109278] / [fdo#109284] / [fdo#111827])
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb5/igt@kms_color_chamelium@pipe-d-ctm-red-to-blue.html

  * igt@kms_cursor_crc@pipe-a-cursor-32x32-rapid-movement:
    - shard-tglb:         NOTRUN -> [SKIP][51] ([i915#3319])
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@kms_cursor_crc@pipe-a-cursor-32x32-rapid-movement.html

  * igt@kms_cursor_crc@pipe-b-cursor-32x10-sliding:
    - shard-tglb:         NOTRUN -> [SKIP][52] ([i915#3359]) +4 similar issues
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb6/igt@kms_cursor_crc@pipe-b-cursor-32x10-sliding.html

  * igt@kms_cursor_legacy@cursorb-vs-flipb-atomic-transitions:
    - shard-iclb:         NOTRUN -> [SKIP][53] ([fdo#109274] / [fdo#109278])
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb2/igt@kms_cursor_legacy@cursorb-vs-flipb-atomic-transitions.html

  * igt@kms_cursor_legacy@short-busy-flip-before-cursor-atomic-transitions:
    - shard-tglb:         NOTRUN -> [SKIP][54] ([i915#4103])
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@kms_cursor_legacy@short-busy-flip-before-cursor-atomic-transitions.html

  * igt@kms_flip@2x-busy-flip:
    - shard-tglb:         NOTRUN -> [SKIP][55] ([fdo#109274] / [fdo#111825]) +2 similar issues
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@kms_flip@2x-busy-flip.html

  * igt@kms_flip@2x-flip-vs-expired-vblank-interruptible@ac-hdmi-a1-hdmi-a2:
    - shard-glk:          [PASS][56] -> [FAIL][57] ([i915#79])
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-glk8/igt@kms_flip@2x-flip-vs-expired-vblank-interruptible@ac-hdmi-a1-hdmi-a2.html
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-glk2/igt@kms_flip@2x-flip-vs-expired-vblank-interruptible@ac-hdmi-a1-hdmi-a2.html

  * igt@kms_flip@2x-flip-vs-panning-interruptible:
    - shard-iclb:         NOTRUN -> [SKIP][58] ([fdo#109274])
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb5/igt@kms_flip@2x-flip-vs-panning-interruptible.html

  * igt@kms_flip@flip-vs-expired-vblank-interruptible@b-edp1:
    - shard-skl:          [PASS][59] -> [FAIL][60] ([i915#79])
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-skl8/igt@kms_flip@flip-vs-expired-vblank-interruptible@b-edp1.html
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl8/igt@kms_flip@flip-vs-expired-vblank-interruptible@b-edp1.html

  * igt@kms_flip@flip-vs-suspend-interruptible@a-dp1:
    - shard-kbl:          [PASS][61] -> [DMESG-WARN][62] ([i915#180]) +20 similar issues
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-kbl3/igt@kms_flip@flip-vs-suspend-interruptible@a-dp1.html
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl4/igt@kms_flip@flip-vs-suspend-interruptible@a-dp1.html

  * igt@kms_flip@flip-vs-suspend@a-dp1:
    - shard-apl:          [PASS][63] -> [DMESG-WARN][64] ([i915#180])
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-apl1/igt@kms_flip@flip-vs-suspend@a-dp1.html
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-apl4/igt@kms_flip@flip-vs-suspend@a-dp1.html

  * igt@kms_flip@plain-flip-ts-check-interruptible@b-edp1:
    - shard-skl:          [PASS][65] -> [FAIL][66] ([i915#2122]) +1 similar issue
   [65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-skl10/igt@kms_flip@plain-flip-ts-check-interruptible@b-edp1.html
   [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl5/igt@kms_flip@plain-flip-ts-check-interruptible@b-edp1.html

  * igt@kms_flip_scaled_crc@flip-32bpp-ytile-to-32bpp-ytileccs-downscaling:
    - shard-skl:          NOTRUN -> [INCOMPLETE][67] ([i915#3701])
   [67]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl4/igt@kms_flip_scaled_crc@flip-32bpp-ytile-to-32bpp-ytileccs-downscaling.html

  * igt@kms_flip_scaled_crc@flip-32bpp-ytile-to-64bpp-ytile-upscaling:
    - shard-glk:          [PASS][68] -> [FAIL][69] ([i915#4911])
   [68]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-glk3/igt@kms_flip_scaled_crc@flip-32bpp-ytile-to-64bpp-ytile-upscaling.html
   [69]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-glk8/igt@kms_flip_scaled_crc@flip-32bpp-ytile-to-64bpp-ytile-upscaling.html

  * igt@kms_flip_scaled_crc@flip-32bpp-ytileccs-to-64bpp-ytile-downscaling:
    - shard-tglb:         NOTRUN -> [SKIP][70] ([i915#2587])
   [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb6/igt@kms_flip_scaled_crc@flip-32bpp-ytileccs-to-64bpp-ytile-downscaling.html

  * igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-32bpp-ytile-downscaling:
    - shard-iclb:         [PASS][71] -> [SKIP][72] ([i915#3701])
   [71]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-iclb8/igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-32bpp-ytile-downscaling.html
   [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb2/igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-32bpp-ytile-downscaling.html

  * igt@kms_frontbuffer_tracking@fbc-2p-primscrn-pri-shrfb-draw-pwrite:
    - shard-iclb:         NOTRUN -> [SKIP][73] ([fdo#109280]) +2 similar issues
   [73]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb2/igt@kms_frontbuffer_tracking@fbc-2p-primscrn-pri-shrfb-draw-pwrite.html

  * igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-spr-indfb-draw-pwrite:
    - shard-skl:          NOTRUN -> [SKIP][74] ([fdo#109271]) +237 similar issues
   [74]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl9/igt@kms_frontbuffer_tracking@fbcpsr-1p-primscrn-spr-indfb-draw-pwrite.html

  * igt@kms_frontbuffer_tracking@fbcpsr-2p-scndscrn-indfb-plflip-blt:
    - shard-tglb:         NOTRUN -> [SKIP][75] ([fdo#109280] / [fdo#111825]) +7 similar issues
   [75]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@kms_frontbuffer_tracking@fbcpsr-2p-scndscrn-indfb-plflip-blt.html

  * igt@kms_hdr@bpc-switch-dpms:
    - shard-skl:          [PASS][76] -> [FAIL][77] ([i915#1188])
   [76]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-skl7/igt@kms_hdr@bpc-switch-dpms.html
   [77]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl7/igt@kms_hdr@bpc-switch-dpms.html

  * igt@kms_pipe_crc_basic@compare-crc-sanitycheck-pipe-d:
    - shard-skl:          NOTRUN -> [SKIP][78] ([fdo#109271] / [i915#533])
   [78]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl4/igt@kms_pipe_crc_basic@compare-crc-sanitycheck-pipe-d.html

  * igt@kms_plane_alpha_blend@pipe-a-alpha-transparent-fb:
    - shard-skl:          NOTRUN -> [FAIL][79] ([i915#265])
   [79]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl10/igt@kms_plane_alpha_blend@pipe-a-alpha-transparent-fb.html

  * igt@kms_plane_alpha_blend@pipe-b-constant-alpha-max:
    - shard-kbl:          NOTRUN -> [FAIL][80] ([fdo#108145] / [i915#265])
   [80]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl1/igt@kms_plane_alpha_blend@pipe-b-constant-alpha-max.html

  * igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min:
    - shard-skl:          NOTRUN -> [FAIL][81] ([fdo#108145] / [i915#265]) +3 similar issues
   [81]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl4/igt@kms_plane_alpha_blend@pipe-c-constant-alpha-min.html

  * igt@kms_plane_lowres@pipe-d-tiling-yf:
    - shard-tglb:         NOTRUN -> [SKIP][82] ([fdo#111615] / [fdo#112054])
   [82]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@kms_plane_lowres@pipe-d-tiling-yf.html

  * igt@kms_psr2_su@page_flip-nv12:
    - shard-skl:          NOTRUN -> [SKIP][83] ([fdo#109271] / [i915#658])
   [83]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl3/igt@kms_psr2_su@page_flip-nv12.html

  * igt@kms_psr@psr2_cursor_mmap_cpu:
    - shard-iclb:         [PASS][84] -> [SKIP][85] ([fdo#109441]) +2 similar issues
   [84]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-iclb2/igt@kms_psr@psr2_cursor_mmap_cpu.html
   [85]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb5/igt@kms_psr@psr2_cursor_mmap_cpu.html

  * igt@kms_psr@psr2_primary_blt:
    - shard-tglb:         NOTRUN -> [FAIL][86] ([i915#132] / [i915#3467])
   [86]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@kms_psr@psr2_primary_blt.html

  * igt@kms_vblank@pipe-c-accuracy-idle:
    - shard-skl:          NOTRUN -> [FAIL][87] ([i915#43])
   [87]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl3/igt@kms_vblank@pipe-c-accuracy-idle.html

  * igt@kms_vrr@flip-suspend:
    - shard-tglb:         NOTRUN -> [SKIP][88] ([fdo#109502])
   [88]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@kms_vrr@flip-suspend.html

  * igt@kms_writeback@writeback-pixel-formats:
    - shard-apl:          NOTRUN -> [SKIP][89] ([fdo#109271] / [i915#2437])
   [89]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-apl4/igt@kms_writeback@writeback-pixel-formats.html

  * igt@nouveau_crc@pipe-b-ctx-flip-skip-current-frame:
    - shard-apl:          NOTRUN -> [SKIP][90] ([fdo#109271]) +36 similar issues
   [90]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-apl4/igt@nouveau_crc@pipe-b-ctx-flip-skip-current-frame.html

  * igt@nouveau_crc@pipe-b-source-rg:
    - shard-tglb:         NOTRUN -> [SKIP][91] ([i915#2530])
   [91]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@nouveau_crc@pipe-b-source-rg.html

  * igt@prime_nv_api@i915_nv_import_twice_check_flink_name:
    - shard-iclb:         NOTRUN -> [SKIP][92] ([fdo#109291])
   [92]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb2/igt@prime_nv_api@i915_nv_import_twice_check_flink_name.html

  * igt@prime_nv_api@i915_nv_reimport_twice_check_flink_name:
    - shard-tglb:         NOTRUN -> [SKIP][93] ([fdo#109291]) +2 similar issues
   [93]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@prime_nv_api@i915_nv_reimport_twice_check_flink_name.html

  * igt@sysfs_clients@fair-0:
    - shard-skl:          NOTRUN -> [SKIP][94] ([fdo#109271] / [i915#2994]) +3 similar issues
   [94]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl9/igt@sysfs_clients@fair-0.html

  * igt@sysfs_clients@fair-3:
    - shard-tglb:         NOTRUN -> [SKIP][95] ([i915#2994])
   [95]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-tglb1/igt@sysfs_clients@fair-3.html

  * igt@sysfs_clients@recycle-many:
    - shard-kbl:          NOTRUN -> [SKIP][96] ([fdo#109271] / [i915#2994])
   [96]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl1/igt@sysfs_clients@recycle-many.html

  
#### Possible fixes ####

  * igt@gem_exec_balancer@parallel-keep-submit-fence:
    - shard-iclb:         [SKIP][97] ([i915#4525]) -> [PASS][98]
   [97]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-iclb8/igt@gem_exec_balancer@parallel-keep-submit-fence.html
   [98]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb2/igt@gem_exec_balancer@parallel-keep-submit-fence.html

  * igt@gem_exec_capture@pi@rcs0:
    - shard-skl:          [INCOMPLETE][99] ([i915#4547]) -> [PASS][100]
   [99]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-skl4/igt@gem_exec_capture@pi@rcs0.html
   [100]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl7/igt@gem_exec_capture@pi@rcs0.html

  * igt@gem_exec_fair@basic-none@vcs0:
    - shard-glk:          [FAIL][101] ([i915#2842]) -> [PASS][102] +1 similar issue
   [101]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-glk8/igt@gem_exec_fair@basic-none@vcs0.html
   [102]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-glk2/igt@gem_exec_fair@basic-none@vcs0.html

  * igt@gem_exec_fair@basic-none@vecs0:
    - shard-apl:          [FAIL][103] ([i915#2842]) -> [PASS][104]
   [103]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-apl8/igt@gem_exec_fair@basic-none@vecs0.html
   [104]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-apl8/igt@gem_exec_fair@basic-none@vecs0.html

  * igt@gem_userptr_blits@huge-split:
    - shard-snb:          [FAIL][105] ([i915#4790]) -> [PASS][106]
   [105]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-snb6/igt@gem_userptr_blits@huge-split.html
   [106]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-snb5/igt@gem_userptr_blits@huge-split.html

  * igt@gem_workarounds@suspend-resume-context:
    - shard-apl:          [DMESG-WARN][107] ([i915#180]) -> [PASS][108] +3 similar issues
   [107]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-apl6/igt@gem_workarounds@suspend-resume-context.html
   [108]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-apl7/igt@gem_workarounds@suspend-resume-context.html

  * igt@i915_pm_backlight@fade_with_suspend:
    - shard-skl:          [INCOMPLETE][109] -> [PASS][110]
   [109]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-skl6/igt@i915_pm_backlight@fade_with_suspend.html
   [110]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl9/igt@i915_pm_backlight@fade_with_suspend.html

  * igt@kms_big_fb@linear-32bpp-rotate-180:
    - shard-glk:          [DMESG-WARN][111] ([i915#118]) -> [PASS][112] +1 similar issue
   [111]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-glk2/igt@kms_big_fb@linear-32bpp-rotate-180.html
   [112]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-glk9/igt@kms_big_fb@linear-32bpp-rotate-180.html

  * igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions:
    - shard-skl:          [FAIL][113] ([i915#2346]) -> [PASS][114]
   [113]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-skl9/igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions.html
   [114]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-skl6/igt@kms_cursor_legacy@flip-vs-cursor-atomic-transitions.html

  * igt@kms_flip@2x-plain-flip-ts-check@ab-hdmi-a1-hdmi-a2:
    - shard-glk:          [FAIL][115] ([i915#2122]) -> [PASS][116]
   [115]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-glk9/igt@kms_flip@2x-plain-flip-ts-check@ab-hdmi-a1-hdmi-a2.html
   [116]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-glk7/igt@kms_flip@2x-plain-flip-ts-check@ab-hdmi-a1-hdmi-a2.html

  * igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move:
    - shard-glk:          [FAIL][117] ([i915#2546]) -> [PASS][118]
   [117]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-glk6/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html
   [118]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-glk4/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-cur-indfb-move.html

  * igt@kms_psr@psr2_sprite_mmap_gtt:
    - shard-iclb:         [SKIP][119] ([fdo#109441]) -> [PASS][120] +2 similar issues
   [119]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-iclb8/igt@kms_psr@psr2_sprite_mmap_gtt.html
   [120]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb2/igt@kms_psr@psr2_sprite_mmap_gtt.html

  * igt@perf_pmu@rc6-suspend:
    - shard-kbl:          [DMESG-WARN][121] ([i915#180]) -> [PASS][122] +1 similar issue
   [121]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-kbl7/igt@perf_pmu@rc6-suspend.html
   [122]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl1/igt@perf_pmu@rc6-suspend.html

  
#### Warnings ####

  * igt@i915_pm_dc@dc3co-vpb-simulation:
    - shard-iclb:         [SKIP][123] ([i915#658]) -> [SKIP][124] ([i915#588])
   [123]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-iclb8/igt@i915_pm_dc@dc3co-vpb-simulation.html
   [124]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb2/igt@i915_pm_dc@dc3co-vpb-simulation.html

  * igt@kms_psr2_sf@primary-plane-update-sf-dmg-area:
    - shard-iclb:         [SKIP][125] ([fdo#111068] / [i915#658]) -> [SKIP][126] ([i915#2920]) +1 similar issue
   [125]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-iclb4/igt@kms_psr2_sf@primary-plane-update-sf-dmg-area.html
   [126]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-iclb2/igt@kms_psr2_sf@primary-plane-update-sf-dmg-area.html

  * igt@runner@aborted:
    - shard-kbl:          ([FAIL][127], [FAIL][128], [FAIL][129], [FAIL][130], [FAIL][131]) ([i915#180] / [i915#1814] / [i915#3002] / [i915#4312]) -> ([FAIL][132], [FAIL][133], [FAIL][134], [FAIL][135], [FAIL][136], [FAIL][137], [FAIL][138], [FAIL][139], [FAIL][140], [FAIL][141], [FAIL][142], [FAIL][143], [FAIL][144]) ([i915#1436] / [i915#180] / [i915#1814] / [i915#4312] / [i915#602])
   [127]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-kbl3/igt@runner@aborted.html
   [128]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-kbl7/igt@runner@aborted.html
   [129]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-kbl4/igt@runner@aborted.html
   [130]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-kbl7/igt@runner@aborted.html
   [131]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-kbl7/igt@runner@aborted.html
   [132]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl7/igt@runner@aborted.html
   [133]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl7/igt@runner@aborted.html
   [134]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl4/igt@runner@aborted.html
   [135]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl7/igt@runner@aborted.html
   [136]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl6/igt@runner@aborted.html
   [137]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl6/igt@runner@aborted.html
   [138]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl4/igt@runner@aborted.html
   [139]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl1/igt@runner@aborted.html
   [140]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl4/igt@runner@aborted.html
   [141]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl6/igt@runner@aborted.html
   [142]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl1/igt@runner@aborted.html
   [143]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl1/igt@runner@aborted.html
   [144]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/shard-kbl4/igt@runner@aborted.html
    - shard-apl:          ([FAIL][145], [FAIL][146], [FAIL][147], [FAIL][148], [FAIL][149]) ([fdo#109271] / [i915#180] / [i915#1814] / [i915#3002] / [i915#4312]) -> ([FAIL][150], [FAIL][151], [FAIL][152]) ([i915#180] / [i915#3002] / [i915#4312])
   [145]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11075/shard-

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_21986/index.html

[-- Attachment #2: Type: text/html, Size: 33933 bytes --]

[PATCH v7 0/7] Introduce multitile support

[Andi Shyti]

Hi,

This is the second series that prepares i915 to host multitile
platforms. It introduces the for_each_gt() macro that loops over
the tiles to perform per gt actions.

This patch is a combination of two patches developed originally
by Abdiel, who introduced some refactoring during probe, and then
Tvrtko has added the necessary tools to start using the various
tiles.

The second patch re-organises the sysfs interface to expose the
API for each of the GTs. I decided to prioritise this patch
over others to unblock Sujaritha for further development.

A third series will still follow this.

Thanks Michal and Andrzej for the reviews and support!

Thanks,
Andi

Patchwork: https://patchwork.freedesktop.org/series/98741/

Changelog
=========
v6 -> v7
 - fixed a mock selftest error by initializing i915->gt[0]
   (thanks Tvrtko!)
 - removed spurious file added by mistake (thanks Matt!)
 - improved commit log in patch 7 (thanks Suja!)

v5 -> v6
 - address all Michal and Andrzej's reviews that consist mainly
   in code refactoring.

v4 -> v5
 - fixed Michal's reviews.
 - the sysfs patches have been split in 3 parts to make reviews
   easier.
 - Sujaritha's patch on pm throttle has been queued.
 - INTEL_REGION_LMEM has been renamed to INTEL_REGION_LMEM_0
 - added the gt_is_root() helper
 - the sysfs files will be called intel_gt_sysfs_* instead of
   sysfs_gt_*

v3 -> v4
 - fixed Tvrtko's review:
    - remove the SYSFS_DEPRECATED_V2 mention from the commit log
    - reworded the error message when accessing deprecated files
    - errors in sysfs are printed as warnings as they are not
      fatal
    - the inline functions are moved to be out of line.
   and some other minor refactoring.

v2 -> v3
 - Added Matt and Sujaritha's r-b for patch 1 and 2.
 - Reworded the commit of patch 2 to underline the fact that the
   interface is useful also when used manually.

v1 -> v2
 - fixed a couple of coding style issues in patch 2.

Andi Shyti (5):
  drm/i915: Rename INTEL_REGION_LMEM with INTEL_REGION_LMEM_0
  drm/i915/gt: add gt_is_root() helper
  drm/i915/gt: create per-tile sysfs interface
  drm/i915/gt: Create per-tile RC6 sysfs interface
  drm/i915/gt: Create per-tile RPS sysfs interfaces

Sujaritha Sundaresan (1):
  drm/i915/gt: Add sysfs throttle frequency interfaces

Tvrtko Ursulin (1):
  drm/i915: Prepare for multiple GTs

 drivers/gpu/drm/i915/Makefile                 |   2 +
 drivers/gpu/drm/i915/display/intel_fb.c       |   2 +-
 drivers/gpu/drm/i915/display/intel_fb_pin.c   |   2 +-
 .../drm/i915/display/intel_plane_initial.c    |   2 +-
 drivers/gpu/drm/i915/gem/i915_gem_lmem.c      |   4 +-
 .../drm/i915/gem/selftests/i915_gem_dmabuf.c  |   6 +-
 .../drm/i915/gem/selftests/i915_gem_migrate.c |   8 +-
 drivers/gpu/drm/i915/gt/intel_gt.c            | 135 +++-
 drivers/gpu/drm/i915/gt/intel_gt.h            |  22 +-
 drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   9 +-
 drivers/gpu/drm/i915/gt/intel_gt_sysfs.c      | 122 ++++
 drivers/gpu/drm/i915/gt/intel_gt_sysfs.h      |  34 +
 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c   | 601 ++++++++++++++++++
 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.h   |  15 +
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |   7 +
 drivers/gpu/drm/i915/gt/intel_rps.c           |  18 +
 drivers/gpu/drm/i915/gt/intel_rps.h           |   4 +
 drivers/gpu/drm/i915/i915_driver.c            |  28 +-
 drivers/gpu/drm/i915/i915_drv.h               |   8 +
 drivers/gpu/drm/i915/i915_reg.h               |  11 +
 drivers/gpu/drm/i915/i915_sysfs.c             | 310 +--------
 drivers/gpu/drm/i915/i915_sysfs.h             |   3 +
 drivers/gpu/drm/i915/intel_memory_region.c    |   2 +-
 drivers/gpu/drm/i915/intel_memory_region.h    |   7 +-
 drivers/gpu/drm/i915/intel_uncore.c           |  11 +-
 drivers/gpu/drm/i915/intel_uncore.h           |   3 +-
 .../gpu/drm/i915/selftests/mock_gem_device.c  |  13 +-
 27 files changed, 1023 insertions(+), 366 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs.c
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs.h
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.h


base-commit: 76874531ffae41683316380bd6d6227bbba12148
-- 
2.35.1

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Introduce multitile support

[Patchwork]

== Series Details ==

Series: Introduce multitile support
URL   : https://patchwork.freedesktop.org/series/101551/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
e394242076f2 drm/i915: Rename INTEL_REGION_LMEM with INTEL_REGION_LMEM_0
e56e16681fc9 drm/i915/gt: add gt_is_root() helper
5bf72a0d1d73 drm/i915: Prepare for multiple GTs
-:249: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'id__' - possible side-effects?
#249: FILE: drivers/gpu/drm/i915/gt/intel_gt.h:103:
+#define for_each_gt(gt__, i915__, id__) \
+	for ((id__) = 0; \
+	     (id__) < I915_MAX_GT; \
+	     (id__)++) \
+		for_each_if(((gt__) = (i915__)->gt[(id__)]))

total: 0 errors, 0 warnings, 1 checks, 444 lines checked
3dbb22f19314 drm/i915/gt: create per-tile sysfs interface
-:72: WARNING:FILE_PATH_CHANGES: added, moved or deleted file(s), does MAINTAINERS need updating?
#72: 
new file mode 100644

total: 0 errors, 1 warnings, 0 checks, 196 lines checked
e051f78dc8fa drm/i915/gt: Create per-tile RC6 sysfs interface
-:121: WARNING:FILE_PATH_CHANGES: added, moved or deleted file(s), does MAINTAINERS need updating?
#121: 
new file mode 100644

-:157: CHECK:SPACING: No space is necessary after a cast
#157: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:32:
+	ret = (op == INTEL_GT_SYSFS_MAX) ? 0 : (u32) -1;

total: 0 errors, 1 warnings, 1 checks, 453 lines checked
557499c5d443 drm/i915/gt: Create per-tile RPS sysfs interfaces
-:320: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_mode' - possible side-effects?
#320: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:458:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:320: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_show' - possible side-effects?
#320: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:458:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:320: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_store' - possible side-effects?
#320: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:458:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:334: CHECK:CAMELCASE: Avoid CamelCase: <RPn_freq_mhz>
#334: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:472:
+static INTEL_GT_RPS_SYSFS_ATTR_RO(RPn_freq_mhz);

-:348: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_##s##_RPn_freq_mhz>
#348: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:486:
+		&dev_attr_##s##_RPn_freq_mhz.attr, \

total: 0 errors, 0 warnings, 5 checks, 503 lines checked
42ca62b1fbf5 drm/i915/gt: Add sysfs throttle frequency interfaces
-:87: CHECK:SPACING: No space is necessary after a cast
#87: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:521:
+				(struct intel_gt_bool_throttle_attr *) attr;

total: 0 errors, 0 warnings, 1 checks, 147 lines checked

[PATCH v6 0/7] Introduce multitile support

[Andi Shyti]

Hi,

This is the second series that prepares i915 to host multitile
platforms. It introduces the for_each_gt() macro that loops over
the tiles to perform per gt actions.

This patch is a combination of two patches developed originally
by Abdiel, who introduced some refactoring during probe, and then
Tvrtko has added the necessary tools to start using the various
tiles.

The second patch re-organises the sysfs interface to expose the
API for each of the GTs. I decided to prioritise this patch
over others to unblock Sujaritha for further development.

A third series will still follow this.

Thanks Michal and Andrzej for the reviews and support!

Thanks,
Andi

Patchwork: https://patchwork.freedesktop.org/series/98741/

Changelog
=========
v5 -> v6
 - address all Michal and Andrzej's reviews that consist mainly
   in code refactoring.

v4 -> v5
 - fixed Michal's reviews.
 - the sysfs patches have been split in 3 parts to make reviews
   easier.
 - Sujaritha's patch on pm throttle has been queued.
 - INTEL_REGION_LMEM has been renamed to INTEL_REGION_LMEM_0
 - added the gt_is_root() helper
 - the sysfs files will be called intel_gt_sysfs_* instead of
   sysfs_gt_*

v3 -> v4
 - fixed Tvrtko's review:
    - remove the SYSFS_DEPRECATED_V2 mention from the commit log
    - reworded the error message when accessing deprecated files
    - errors in sysfs are printed as warnings as they are not
      fatal
    - the inline functions are moved to be out of line.
   and some other minor refactoring.

v2 -> v3
 - Added Matt and Sujaritha's r-b for patch 1 and 2.
 - Reworded the commit of patch 2 to underline the fact that the
   interface is useful also when used manually.

v1 -> v2
 - fixed a couple of coding style issues in patch 2.

Andi Shyti (5):
  drm/i915: Rename INTEL_REGION_LMEM with INTEL_REGION_LMEM_0
  drm/i915/gt: add gt_is_root() helper
  drm/i915/gt: create per-tile sysfs interface
  drm/i915/gt: Create per-tile RC6 sysfs interface
  drm/i915/gt: Create per-tile RPS sysfs interfaces

Sujaritha Sundaresan (1):
  drm/i915/gt: Adding new sysfs frequency attributes

Tvrtko Ursulin (1):
  drm/i915: Prepare for multiple GTs

 drivers/gpu/drm/i915/Makefile                 |   2 +
 drivers/gpu/drm/i915/display/intel_fb.c       |   2 +-
 drivers/gpu/drm/i915/display/intel_fb_pin.c   |   2 +-
 .../drm/i915/display/intel_plane_initial.c    |   2 +-
 drivers/gpu/drm/i915/gem/i915_gem_lmem.c      |   4 +-
 .../drm/i915/gem/selftests/i915_gem_dmabuf.c  |   6 +-
 .../drm/i915/gem/selftests/i915_gem_migrate.c |   8 +-
 drivers/gpu/drm/i915/gt/intel_gt.c            | 135 +++-
 drivers/gpu/drm/i915/gt/intel_gt.h            |  22 +-
 drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   9 +-
 drivers/gpu/drm/i915/gt/intel_gt_sysfs.c      | 122 ++++
 drivers/gpu/drm/i915/gt/intel_gt_sysfs.h      |  34 +
 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c   | 601 ++++++++++++++++++
 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.h   |  15 +
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |   7 +
 drivers/gpu/drm/i915/gt/intel_rps.c           |  18 +
 drivers/gpu/drm/i915/gt/intel_rps.h           |   4 +
 drivers/gpu/drm/i915/i915_driver.c            |  28 +-
 drivers/gpu/drm/i915/i915_drv.h               |   8 +
 drivers/gpu/drm/i915/i915_reg.h               |  11 +
 drivers/gpu/drm/i915/i915_sysfs.c             | 310 +--------
 drivers/gpu/drm/i915/i915_sysfs.h             |   3 +
 drivers/gpu/drm/i915/intel_memory_region.c    |   2 +-
 drivers/gpu/drm/i915/intel_memory_region.h    |   7 +-
 drivers/gpu/drm/i915/intel_uncore.c           |  11 +-
 drivers/gpu/drm/i915/intel_uncore.h           |   3 +-
 .../gpu/drm/i915/selftests/mock_gem_device.c  |   7 +-
 scripts/extract-cert                          | Bin 0 -> 17952 bytes
 28 files changed, 1017 insertions(+), 366 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs.c
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs.h
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.h
 create mode 100755 scripts/extract-cert

-- 
2.35.1

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Introduce multitile support

[Patchwork]

== Series Details ==

Series: Introduce multitile support
URL   : https://patchwork.freedesktop.org/series/101549/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
ac3a14b22f9a drm/i915: Rename INTEL_REGION_LMEM with INTEL_REGION_LMEM_0
373961700ada drm/i915/gt: add gt_is_root() helper
8fbc02b492a6 drm/i915: Prepare for multiple GTs
-:248: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'id__' - possible side-effects?
#248: FILE: drivers/gpu/drm/i915/gt/intel_gt.h:103:
+#define for_each_gt(gt__, i915__, id__) \
+	for ((id__) = 0; \
+	     (id__) < I915_MAX_GT; \
+	     (id__)++) \
+		for_each_if(((gt__) = (i915__)->gt[(id__)]))

total: 0 errors, 0 warnings, 1 checks, 429 lines checked
287368b2d564 drm/i915/gt: create per-tile sysfs interface
-:70: WARNING:FILE_PATH_CHANGES: added, moved or deleted file(s), does MAINTAINERS need updating?
#70: 
new file mode 100644

total: 0 errors, 1 warnings, 0 checks, 196 lines checked
a4492f268173 drm/i915/gt: Create per-tile RC6 sysfs interface
-:121: WARNING:FILE_PATH_CHANGES: added, moved or deleted file(s), does MAINTAINERS need updating?
#121: 
new file mode 100644

-:157: CHECK:SPACING: No space is necessary after a cast
#157: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:32:
+	ret = (op == INTEL_GT_SYSFS_MAX) ? 0 : (u32) -1;

total: 0 errors, 1 warnings, 1 checks, 453 lines checked
a85aedc94158 drm/i915/gt: Create per-tile RPS sysfs interfaces
-:319: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_mode' - possible side-effects?
#319: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:458:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:319: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_show' - possible side-effects?
#319: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:458:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:319: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_store' - possible side-effects?
#319: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:458:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:333: CHECK:CAMELCASE: Avoid CamelCase: <RPn_freq_mhz>
#333: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:472:
+static INTEL_GT_RPS_SYSFS_ATTR_RO(RPn_freq_mhz);

-:347: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_##s##_RPn_freq_mhz>
#347: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:486:
+		&dev_attr_##s##_RPn_freq_mhz.attr, \

total: 0 errors, 0 warnings, 5 checks, 503 lines checked
59ae69ae1370 drm/i915/gt: Adding new sysfs frequency attributes
-:63: CHECK:SPACING: No space is necessary after a cast
#63: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:521:
+				(struct intel_gt_bool_throttle_attr *) attr;

total: 0 errors, 0 warnings, 1 checks, 147 lines checked

[PATCH v6 0/7] Introduce multitile support

[Andi Shyti]

Hi,

This is the second series that prepares i915 to host multitile
platforms. It introduces the for_each_gt() macro that loops over
the tiles to perform per gt actions.

This patch is a combination of two patches developed originally
by Abdiel, who introduced some refactoring during probe, and then
Tvrtko has added the necessary tools to start using the various
tiles.

The second patch re-organises the sysfs interface to expose the
API for each of the GTs. I decided to prioritise this patch
over others to unblock Sujaritha for further development.

A third series will still follow this.

Thanks Michal and Andrzej for the reviews and support!

Thanks,
Andi

Patchwork: https://patchwork.freedesktop.org/series/98741/

Changelog
=========
v5 -> v6
 - address all Michal and Andrzej's reviews that consist mainly
   in code refactoring.

v4 -> v5
 - fixed Michal's reviews.
 - the sysfs patches have been split in 3 parts to make reviews
   easier.
 - Sujaritha's patch on pm throttle has been queued.
 - INTEL_REGION_LMEM has been renamed to INTEL_REGION_LMEM_0
 - added the gt_is_root() helper
 - the sysfs files will be called intel_gt_sysfs_* instead of
   sysfs_gt_*

v3 -> v4
 - fixed Tvrtko's review:
    - remove the SYSFS_DEPRECATED_V2 mention from the commit log
    - reworded the error message when accessing deprecated files
    - errors in sysfs are printed as warnings as they are not
      fatal
    - the inline functions are moved to be out of line.
   and some other minor refactoring.

v2 -> v3
 - Added Matt and Sujaritha's r-b for patch 1 and 2.
 - Reworded the commit of patch 2 to underline the fact that the
   interface is useful also when used manually.

v1 -> v2
 - fixed a couple of coding style issues in patch 2.

Andi Shyti (5):
  drm/i915: Rename INTEL_REGION_LMEM with INTEL_REGION_LMEM_0
  drm/i915/gt: add gt_is_root() helper
  drm/i915/gt: create per-tile sysfs interface
  drm/i915/gt: Create per-tile RC6 sysfs interface
  drm/i915/gt: Create per-tile RPS sysfs interfaces

Sujaritha Sundaresan (1):
  drm/i915/gt: Adding new sysfs frequency attributes

Tvrtko Ursulin (1):
  drm/i915: Prepare for multiple GTs

 drivers/gpu/drm/i915/Makefile                 |   2 +
 drivers/gpu/drm/i915/display/intel_fb.c       |   2 +-
 drivers/gpu/drm/i915/display/intel_fb_pin.c   |   2 +-
 .../drm/i915/display/intel_plane_initial.c    |   2 +-
 drivers/gpu/drm/i915/gem/i915_gem_lmem.c      |   4 +-
 .../drm/i915/gem/selftests/i915_gem_dmabuf.c  |   6 +-
 .../drm/i915/gem/selftests/i915_gem_migrate.c |   8 +-
 drivers/gpu/drm/i915/gt/intel_gt.c            | 135 +++-
 drivers/gpu/drm/i915/gt/intel_gt.h            |  22 +-
 drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   9 +-
 drivers/gpu/drm/i915/gt/intel_gt_sysfs.c      | 122 ++++
 drivers/gpu/drm/i915/gt/intel_gt_sysfs.h      |  34 +
 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c   | 601 ++++++++++++++++++
 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.h   |  15 +
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |   7 +
 drivers/gpu/drm/i915/gt/intel_rps.c           |  18 +
 drivers/gpu/drm/i915/gt/intel_rps.h           |   4 +
 drivers/gpu/drm/i915/i915_driver.c            |  28 +-
 drivers/gpu/drm/i915/i915_drv.h               |   8 +
 drivers/gpu/drm/i915/i915_reg.h               |  11 +
 drivers/gpu/drm/i915/i915_sysfs.c             | 310 +--------
 drivers/gpu/drm/i915/i915_sysfs.h             |   3 +
 drivers/gpu/drm/i915/intel_memory_region.c    |   2 +-
 drivers/gpu/drm/i915/intel_memory_region.h    |   7 +-
 drivers/gpu/drm/i915/intel_uncore.c           |  11 +-
 drivers/gpu/drm/i915/intel_uncore.h           |   3 +-
 .../gpu/drm/i915/selftests/mock_gem_device.c  |   7 +-
 scripts/extract-cert                          | Bin 0 -> 17952 bytes
 28 files changed, 1017 insertions(+), 366 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs.c
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs.h
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.h
 create mode 100755 scripts/extract-cert

-- 
2.35.1

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Introduce multitile support

[Patchwork]

== Series Details ==

Series: Introduce multitile support
URL   : https://patchwork.freedesktop.org/series/101520/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
c8d744572c07 drm/i915: Rename INTEL_REGION_LMEM with INTEL_REGION_LMEM_0
bccf33639b42 drm/i915/gt: add gt_is_root() helper
bd82c25c94b3 drm/i915: Prepare for multiple GTs
-:248: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'id__' - possible side-effects?
#248: FILE: drivers/gpu/drm/i915/gt/intel_gt.h:103:
+#define for_each_gt(gt__, i915__, id__) \
+	for ((id__) = 0; \
+	     (id__) < I915_MAX_GT; \
+	     (id__)++) \
+		for_each_if(((gt__) = (i915__)->gt[(id__)]))

total: 0 errors, 0 warnings, 1 checks, 429 lines checked
cf66f69b18fb drm/i915/gt: create per-tile sysfs interface
-:70: WARNING:FILE_PATH_CHANGES: added, moved or deleted file(s), does MAINTAINERS need updating?
#70: 
new file mode 100644

total: 0 errors, 1 warnings, 0 checks, 196 lines checked
ae068b952ed3 drm/i915/gt: Create per-tile RC6 sysfs interface
-:121: WARNING:FILE_PATH_CHANGES: added, moved or deleted file(s), does MAINTAINERS need updating?
#121: 
new file mode 100644

-:157: CHECK:SPACING: No space is necessary after a cast
#157: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:32:
+	ret = (op == INTEL_GT_SYSFS_MAX) ? 0 : (u32) -1;

total: 0 errors, 1 warnings, 1 checks, 453 lines checked
7557c24341c1 drm/i915/gt: Create per-tile RPS sysfs interfaces
-:319: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_mode' - possible side-effects?
#319: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:458:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:319: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_show' - possible side-effects?
#319: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:458:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:319: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_store' - possible side-effects?
#319: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:458:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:333: CHECK:CAMELCASE: Avoid CamelCase: <RPn_freq_mhz>
#333: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:472:
+static INTEL_GT_RPS_SYSFS_ATTR_RO(RPn_freq_mhz);

-:347: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_##s##_RPn_freq_mhz>
#347: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:486:
+		&dev_attr_##s##_RPn_freq_mhz.attr, \

total: 0 errors, 0 warnings, 5 checks, 503 lines checked
edaf552ed5dc drm/i915/gt: Adding new sysfs frequency attributes
-:63: CHECK:SPACING: No space is necessary after a cast
#63: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:521:
+				(struct intel_gt_bool_throttle_attr *) attr;

total: 0 errors, 0 warnings, 1 checks, 147 lines checked

[PATCH v5 0/7] Introduce multitile support

[Andi Shyti]

Hi,

This is the second series that prepares i915 to host multitile
platforms. It introduces the for_each_gt() macro that loops over
the tiles to perform per gt actions.

This patch is a combination of two patches developed originally
by Abdiel, who introduced some refactoring during probe, and then
Tvrtko has added the necessary tools to start using the various
tiles.

The second patch re-organises the sysfs interface to expose the
API for each of the GTs. I decided to prioritise this patch
over others to unblock Sujaritha for further development.

A third series will still follow this.

Thanks,
Andi

Patchwork: https://patchwork.freedesktop.org/series/98741/

Changelog
=========
v4 -> v5
 - fixed Michal's reviews.
 - the sysfs patches have been split in 3 parts to make reviews
   easier.
 - Sujaritha's patch on pm throttle has been queued.
 - INTEL_REGION_LMEM has been renamed to INTEL_REGION_LMEM_0
 - added the gt_is_root() helper
 - the sysfs files will be called intel_gt_sysfs_* instead of
   sysfs_gt_*

v3 -> v4
 - fixed Tvrtko's review:
    - remove the SYSFS_DEPRECATED_V2 mention from the commit log
    - reworded the error message when accessing deprecated files
    - errors in sysfs are printed as warnings as they are not
      fatal
    - the inline functions are moved to be out of line.
   and some other minor refactoring.

v2 -> v3
 - Added Matt and Sujaritha's r-b for patch 1 and 2.
 - Reworded the commit of patch 2 to underline the fact that the
   interface is useful also when used manually.

v1 -> v2
 - fixed a couple of coding style issues in patch 2.


Andi Shyti (5):
  drm/i915: Rename INTEL_REGION_LMEM with INTEL_REGION_LMEM_0
  drm/i915/gt: add gt_is_root() helper
  drm/i915/gt: create per-tile sysfs interface
  drm/i915/gt: Create per-tile RC6 sysfs interface
  drm/i915/gt: Create per-tile RPS sysfs interfaces

Sujaritha Sundaresan (1):
  RFC : drm/i915: Adding new sysfs frequency attributes

Tvrtko Ursulin (1):
  drm/i915: Prepare for multiple GTs

 drivers/gpu/drm/i915/Makefile                 |   2 +
 drivers/gpu/drm/i915/display/intel_fb.c       |   2 +-
 drivers/gpu/drm/i915/display/intel_fb_pin.c   |   2 +-
 drivers/gpu/drm/i915/gem/i915_gem_lmem.c      |   4 +-
 .../drm/i915/gem/selftests/i915_gem_dmabuf.c  |   6 +-
 .../drm/i915/gem/selftests/i915_gem_migrate.c |   8 +-
 drivers/gpu/drm/i915/gt/intel_gt.c            | 137 +++-
 drivers/gpu/drm/i915/gt/intel_gt.h            |  21 +-
 drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   9 +-
 drivers/gpu/drm/i915/gt/intel_gt_sysfs.c      | 137 ++++
 drivers/gpu/drm/i915/gt/intel_gt_sysfs.h      |  34 +
 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c   | 638 ++++++++++++++++++
 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.h   |  15 +
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |   7 +
 drivers/gpu/drm/i915/gt/intel_rps.c           |  83 +++
 drivers/gpu/drm/i915/gt/intel_rps.h           |  10 +
 drivers/gpu/drm/i915/i915_driver.c            |  29 +-
 drivers/gpu/drm/i915/i915_drv.h               |   8 +
 drivers/gpu/drm/i915/i915_reg.h               |  11 +
 drivers/gpu/drm/i915/i915_sysfs.c             | 315 +--------
 drivers/gpu/drm/i915/i915_sysfs.h             |   3 +
 drivers/gpu/drm/i915/intel_memory_region.c    |   2 +-
 drivers/gpu/drm/i915/intel_memory_region.h    |   7 +-
 drivers/gpu/drm/i915/intel_uncore.c           |  12 +-
 drivers/gpu/drm/i915/intel_uncore.h           |   3 +-
 .../gpu/drm/i915/selftests/mock_gem_device.c  |   7 +-
 26 files changed, 1148 insertions(+), 364 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs.c
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs.h
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.h

-- 
2.27.0

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Introduce multitile support

[Patchwork]

== Series Details ==

Series: Introduce multitile support
URL   : https://patchwork.freedesktop.org/series/100331/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
84ebedcd8baa drm/i915: Rename INTEL_REGION_LMEM with INTEL_REGION_LMEM_0
3122cf9d817d drm/i915: Prepare for multiple GTs
-:252: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'id__' - possible side-effects?
#252: FILE: drivers/gpu/drm/i915/gt/intel_gt.h:91:
+#define for_each_gt(gt__, i915__, id__) \
+	for ((id__) = 0; \
+	     (id__) < I915_MAX_GT; \
+	     (id__)++) \
+		for_each_if(((gt__) = (i915__)->gt[(id__)]))

total: 0 errors, 0 warnings, 1 checks, 435 lines checked
993116c384d8 drm/i915/gt: add gt_is_root() helper
cb0e95e71059 drm/i915/gt: create per-tile sysfs interface
-:70: WARNING:FILE_PATH_CHANGES: added, moved or deleted file(s), does MAINTAINERS need updating?
#70: 
new file mode 100644

total: 0 errors, 1 warnings, 0 checks, 222 lines checked
62eccef7a8ce drm/i915/gt: Create per-tile RC6 sysfs interface
-:119: WARNING:FILE_PATH_CHANGES: added, moved or deleted file(s), does MAINTAINERS need updating?
#119: 
new file mode 100644

-:207: CHECK:SPACING: No space is necessary after a cast
#207: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:84:
+	return sysfs_emit(buff, "%u\n", (u32) rc6_residency);

-:222: CHECK:SPACING: No space is necessary after a cast
#222: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:99:
+	return sysfs_emit(buff, "%u\n", (u32) rc6p_residency);

-:237: CHECK:SPACING: No space is necessary after a cast
#237: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:114:
+	return sysfs_emit(buff, "%u\n", (u32) rc6pp_residency);

-:252: CHECK:SPACING: No space is necessary after a cast
#252: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:129:
+	return sysfs_emit(buff, "%u\n", (u32) rc6_residency);

total: 0 errors, 1 warnings, 4 checks, 427 lines checked
8a294f4a2e2e drm/i915/gt: Create per-tile RPS sysfs interfaces
-:127: CHECK:SPACING: No space is necessary after a cast
#127: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:253:
+	return sysfs_emit(buff, "%u\n", (u32) actual_freq);

-:141: CHECK:SPACING: No space is necessary after a cast
#141: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:267:
+	return sysfs_emit(buff, "%u\n", (u32) cur_freq);

-:156: CHECK:SPACING: No space is necessary after a cast
#156: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:282:
+	return sysfs_emit(buff, "%u\n", (u32) boost_freq);

-:209: CHECK:SPACING: No space is necessary after a cast
#209: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:335:
+	return sysfs_emit(buff, "%d\n", (int) rpe_freq);

-:233: ERROR:CODE_INDENT: code indent should use tabs where possible
#233: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:359:
+                                      struct device_attribute *attr,$

-:233: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#233: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:359:
+                                      struct device_attribute *attr,$

-:234: ERROR:CODE_INDENT: code indent should use tabs where possible
#234: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:360:
+                                      const char *buff, size_t count);$

-:234: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#234: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:360:
+                                      const char *buff, size_t count);$

-:238: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_mode' - possible side-effects?
#238: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:364:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:238: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_show' - possible side-effects?
#238: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:364:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:238: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_store' - possible side-effects?
#238: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:364:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:259: CHECK:CAMELCASE: Avoid CamelCase: <RPn_freq_mhz>
#259: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:385:
+static INTEL_GT_RPS_SYSFS_ATTR(RPn_freq_mhz, 0444, rps_rp_mhz_show, NULL);

-:272: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_##s##_RPn_freq_mhz>
#272: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:398:
+		&dev_attr_##s##_RPn_freq_mhz.attr, \

-:280: ERROR:CODE_INDENT: code indent should use tabs where possible
#280: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:406:
+                                      struct device_attribute *attr,$

-:280: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#280: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:406:
+                                      struct device_attribute *attr,$

-:281: ERROR:CODE_INDENT: code indent should use tabs where possible
#281: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:407:
+                                      const char *buff, size_t count)$

-:281: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#281: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:407:
+                                      const char *buff, size_t count)$

-:308: CHECK:SPACING: No space is necessary after a cast
#308: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:434:
+	return sysfs_emit(buff, "%u\n", (u32) val);

-:323: WARNING:SUSPECT_CODE_INDENT: suspect code indent for conditional statements (8, 19)
#323: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:449:
+	} else if (attr == &dev_attr_gt_RP1_freq_mhz ||
[...]
+		   val = intel_rps_get_rp1_frequency(rps);

-:326: WARNING:SUSPECT_CODE_INDENT: suspect code indent for conditional statements (8, 19)
#326: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:452:
+	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||
[...]
+		   val = intel_rps_get_rpn_frequency(rps);

-:326: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_gt_RPn_freq_mhz>
#326: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:452:
+	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||

-:327: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_rps_RPn_freq_mhz>
#327: FILE: drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c:453:
+		   attr == &dev_attr_rps_RPn_freq_mhz) {

total: 4 errors, 6 warnings, 12 checks, 486 lines checked
ab6a55a71e52 drm/i915/gt: Adding new sysfs frequency attributes

[PATCH v4 0/2] Introduce multitile support

[Andi Shyti]

Hi,

This is the second series that prepares i915 to host multitile
platforms. It introduces the for_each_gt() macro that loops over
the tiles to perform per gt actions.

This patch is a combination of two patches developed originally
by Abdiel, who introduced some refactoring during probe, and then
Tvrtko has added the necessary tools to start using the various
tiles.

The second patch re-organises the sysfs interface to expose the
API for each of the GTs. I decided to prioritise this patch
over others to unblock Sujaritha for further development.

A third series will still follow this.

Thanks,
Andi

Patchwork: https://patchwork.freedesktop.org/series/98741/

Changelog
=========
v3 -> v4
 - fixed Tvrtko's review:
    - remove the SYSFS_DEPRECATED_V2 mention from the commit log
    - reworded the error message when accessing deprecated files
    - errors in sysfs are printed as warnings as they are not
      fatal
    - the inline functions are moved to be out of line.
   and some other minor refactoring.

v2 -> v3
 - Added Matt and Sujaritha's r-b for patch 1 and 2.
 - Reworded the commit of patch 2 to underline the fact that the
   interface is useful also when used manually.

v1 -> v2
 - fixed a couple of coding style issues in patch 2.

Andi Shyti (1):
  drm/i915/gt: make a gt sysfs group and move power management files

Tvrtko Ursulin (1):
  drm/i915: Prepare for multiple GTs

 drivers/gpu/drm/i915/Makefile                 |   4 +-
 drivers/gpu/drm/i915/gt/intel_gt.c            | 141 ++++++-
 drivers/gpu/drm/i915/gt/intel_gt.h            |  14 +-
 drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   9 +-
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |   7 +
 drivers/gpu/drm/i915/gt/sysfs_gt.c            | 136 ++++++
 drivers/gpu/drm/i915/gt/sysfs_gt.h            |  32 ++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c         | 392 ++++++++++++++++++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h         |  16 +
 drivers/gpu/drm/i915/i915_driver.c            |  29 +-
 drivers/gpu/drm/i915/i915_drv.h               |   8 +
 drivers/gpu/drm/i915/i915_sysfs.c             | 315 +-------------
 drivers/gpu/drm/i915/i915_sysfs.h             |   3 +
 drivers/gpu/drm/i915/intel_memory_region.h    |   3 +
 drivers/gpu/drm/i915/intel_uncore.c           |  12 +-
 drivers/gpu/drm/i915/intel_uncore.h           |   3 +-
 .../gpu/drm/i915/selftests/mock_gem_device.c  |   5 +-
 17 files changed, 781 insertions(+), 348 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.h
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h

-- 
2.34.1

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Introduce multitile support

[Patchwork]

== Series Details ==

Series: Introduce multitile support
URL   : https://patchwork.freedesktop.org/series/98958/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
3a9bf34c3413 drm/i915: Prepare for multiple GTs
-:255: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'id__' - possible side-effects?
#255: FILE: drivers/gpu/drm/i915/gt/intel_gt.h:91:
+#define for_each_gt(gt__, i915__, id__) \
+	for ((id__) = 0; \
+	     (id__) < I915_MAX_GT; \
+	     (id__)++) \
+		for_each_if(((gt__) = (i915__)->gt[(id__)]))

total: 0 errors, 0 warnings, 1 checks, 436 lines checked
19cc34444270 drm/i915/gt: make a gt sysfs group and move power management files
-:111: WARNING:FILE_PATH_CHANGES: added, moved or deleted file(s), does MAINTAINERS need updating?
#111: 
new file mode 100644

-:588: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_mode' - possible side-effects?
#588: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:293:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:588: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_show' - possible side-effects?
#588: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:293:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:588: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_store' - possible side-effects?
#588: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:293:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:611: CHECK:CAMELCASE: Avoid CamelCase: <RPn_freq_mhz>
#611: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:316:
+static INTEL_GT_RPS_SYSFS_ATTR(RPn_freq_mhz, 0444, rps_rp_mhz_show, NULL);

-:621: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_##s##_RPn_freq_mhz>
#621: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:326:
+		&dev_attr_##s##_RPn_freq_mhz.attr, \

-:640: WARNING:SUSPECT_CODE_INDENT: suspect code indent for conditional statements (8, 19)
#640: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:345:
+	} else if (attr == &dev_attr_gt_RP1_freq_mhz ||
[...]
+		   val = intel_rps_get_rp1_frequency(rps);

-:643: WARNING:SUSPECT_CODE_INDENT: suspect code indent for conditional statements (8, 19)
#643: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:348:
+	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||
[...]
+		   val = intel_rps_get_rpn_frequency(rps);

-:643: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_gt_RPn_freq_mhz>
#643: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:348:
+	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||

-:644: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_rps_RPn_freq_mhz>
#644: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:349:
+		   attr == &dev_attr_rps_RPn_freq_mhz) {

total: 0 errors, 3 warnings, 7 checks, 974 lines checked

[PATCH v3 0/2] Introduce multitile support

[Andi Shyti]

Hi,

This is the second series that prepares i915 to host multitile
platforms. It introduces the for_each_gt() macro that loops over
the tiles to perform per gt actions.

This patch is a combination of two patches developed originally
by Abdiel, who introduced some refactoring during probe, and then
Tvrtko has added the necessary tools to start using the various
tiles.

The second patch re-organises the sysfs interface to expose the
API for each of the GTs. I decided to prioritise this patch
over others to unblock Sujaritha for further development.

A third series will still follow this.

Thanks,
Andi

Patchwork: https://patchwork.freedesktop.org/series/98741/

Changelog
=========
v2 -> v3
 - Added Matt and Sujaritha's r-b for patch 1 and 2.
 - Reworded the commit of patch 2 to underline the fact that the
   interface is useful also when used manually.
v1 -> v2
 - fixed a couple of coding style issues in patch 2.

Andi Shyti (1):
  drm/i915/gt: make a gt sysfs group and move power management files

Tvrtko Ursulin (1):
  drm/i915: Prepare for multiple GTs

 drivers/gpu/drm/i915/Makefile                 |   4 +-
 drivers/gpu/drm/i915/gt/intel_gt.c            | 141 ++++++-
 drivers/gpu/drm/i915/gt/intel_gt.h            |  14 +-
 drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   9 +-
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |   7 +
 drivers/gpu/drm/i915/gt/sysfs_gt.c            | 126 ++++++
 drivers/gpu/drm/i915/gt/sysfs_gt.h            |  44 ++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c         | 393 ++++++++++++++++++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h         |  16 +
 drivers/gpu/drm/i915/i915_driver.c            |  29 +-
 drivers/gpu/drm/i915/i915_drv.h               |   8 +
 drivers/gpu/drm/i915/i915_reg.h               |   1 +
 drivers/gpu/drm/i915/i915_sysfs.c             | 315 +-------------
 drivers/gpu/drm/i915/i915_sysfs.h             |   3 +
 drivers/gpu/drm/i915/intel_memory_region.h    |   3 +
 drivers/gpu/drm/i915/intel_uncore.c           |  12 +-
 drivers/gpu/drm/i915/intel_uncore.h           |   3 +-
 .../gpu/drm/i915/selftests/mock_gem_device.c  |   5 +-
 18 files changed, 785 insertions(+), 348 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.h
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h

-- 
2.34.1

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Introduce multitile support

[Patchwork]

== Series Details ==

Series: Introduce multitile support
URL   : https://patchwork.freedesktop.org/series/98950/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
28afa8633a19 drm/i915: Prepare for multiple GTs
-:255: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'id__' - possible side-effects?
#255: FILE: drivers/gpu/drm/i915/gt/intel_gt.h:91:
+#define for_each_gt(gt__, i915__, id__) \
+	for ((id__) = 0; \
+	     (id__) < I915_MAX_GT; \
+	     (id__)++) \
+		for_each_if(((gt__) = (i915__)->gt[(id__)]))

total: 0 errors, 0 warnings, 1 checks, 436 lines checked
9028d350f206 drm/i915/gt: make a gt sysfs group and move power management files
-:112: WARNING:FILE_PATH_CHANGES: added, moved or deleted file(s), does MAINTAINERS need updating?
#112: 
new file mode 100644

-:592: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_mode' - possible side-effects?
#592: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:294:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:592: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_show' - possible side-effects?
#592: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:294:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:592: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_store' - possible side-effects?
#592: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:294:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:615: CHECK:CAMELCASE: Avoid CamelCase: <RPn_freq_mhz>
#615: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:317:
+static INTEL_GT_RPS_SYSFS_ATTR(RPn_freq_mhz, 0444, rps_rp_mhz_show, NULL);

-:625: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_##s##_RPn_freq_mhz>
#625: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:327:
+		&dev_attr_##s##_RPn_freq_mhz.attr, \

-:644: WARNING:SUSPECT_CODE_INDENT: suspect code indent for conditional statements (8, 19)
#644: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:346:
+	} else if (attr == &dev_attr_gt_RP1_freq_mhz ||
[...]
+		   val = intel_rps_get_rp1_frequency(rps);

-:647: WARNING:SUSPECT_CODE_INDENT: suspect code indent for conditional statements (8, 19)
#647: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:349:
+	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||
[...]
+		   val = intel_rps_get_rpn_frequency(rps);

-:647: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_gt_RPn_freq_mhz>
#647: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:349:
+	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||

-:648: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_rps_RPn_freq_mhz>
#648: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:350:
+		   attr == &dev_attr_rps_RPn_freq_mhz) {

total: 0 errors, 3 warnings, 7 checks, 984 lines checked

[PATCH 0/2] Introduce multitile support

[Andi Shyti]

Hi,

This is the second series that prepares i915 to host multitile
platforms. It introduces the for_each_gt() macro that loops over
the tiles to perform per gt actions.

This patch is a combination of two patches developed originally
by Abdiel, who introduced some refactoring during probe, and then
Tvrtko has added the necessary tools to start using the various
tiles.

The second patch re-organises the sysfs interface to expose the
API for each of the GTs. I decided to prioritise this patch
over others to unblock Sujaritha for further development.

A third series will still follow this.

Andi Shyti (1):
  drm/i915/gt: make a gt sysfs group and move power management files

Tvrtko Ursulin (1):
  drm/i915: Prepare for multiple GTs

 drivers/gpu/drm/i915/Makefile                 |   4 +-
 drivers/gpu/drm/i915/gt/intel_gt.c            | 141 ++++++-
 drivers/gpu/drm/i915/gt/intel_gt.h            |  14 +-
 drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   9 +-
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |   7 +
 drivers/gpu/drm/i915/gt/sysfs_gt.c            | 126 ++++++
 drivers/gpu/drm/i915/gt/sysfs_gt.h            |  44 ++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c         | 394 ++++++++++++++++++
 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h         |  16 +
 drivers/gpu/drm/i915/i915_driver.c            |  29 +-
 drivers/gpu/drm/i915/i915_drv.h               |   8 +
 drivers/gpu/drm/i915/i915_reg.h               |   1 +
 drivers/gpu/drm/i915/i915_sysfs.c             | 315 +-------------
 drivers/gpu/drm/i915/i915_sysfs.h             |   3 +
 drivers/gpu/drm/i915/intel_memory_region.h    |   3 +
 drivers/gpu/drm/i915/intel_uncore.c           |  12 +-
 drivers/gpu/drm/i915/intel_uncore.h           |   3 +-
 .../gpu/drm/i915/selftests/mock_gem_device.c  |   5 +-
 18 files changed, 786 insertions(+), 348 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt.h
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.c
 create mode 100644 drivers/gpu/drm/i915/gt/sysfs_gt_pm.h

-- 
2.34.1

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Introduce multitile support

[Patchwork]

== Series Details ==

Series: Introduce multitile support
URL   : https://patchwork.freedesktop.org/series/98741/
State : warning

== Summary ==

$ dim checkpatch origin/drm-tip
297fae638da5 drm/i915: Prepare for multiple GTs
-:254: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'id__' - possible side-effects?
#254: FILE: drivers/gpu/drm/i915/gt/intel_gt.h:91:
+#define for_each_gt(gt__, i915__, id__) \
+	for ((id__) = 0; \
+	     (id__) < I915_MAX_GT; \
+	     (id__)++) \
+		for_each_if(((gt__) = (i915__)->gt[(id__)]))

total: 0 errors, 0 warnings, 1 checks, 436 lines checked
2ac6f3cedf48 drm/i915/gt: make a gt sysfs group and move power management files
-:106: WARNING:FILE_PATH_CHANGES: added, moved or deleted file(s), does MAINTAINERS need updating?
#106: 
new file mode 100644

-:460: CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis
#460: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:168:
+static ssize_t act_freq_mhz_show(struct device *dev,
+				     struct device_attribute *attr, char *buff)

-:586: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_mode' - possible side-effects?
#586: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:294:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:586: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_show' - possible side-effects?
#586: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:294:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:586: CHECK:MACRO_ARG_REUSE: Macro argument reuse '_store' - possible side-effects?
#586: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:294:
+#define INTEL_GT_RPS_SYSFS_ATTR(_name, _mode, _show, _store) \
+	struct device_attribute dev_attr_gt_##_name = __ATTR(gt_##_name, _mode, _show, _store); \
+	struct device_attribute dev_attr_rps_##_name = __ATTR(rps_##_name, _mode, _show, _store)

-:609: CHECK:CAMELCASE: Avoid CamelCase: <RPn_freq_mhz>
#609: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:317:
+static INTEL_GT_RPS_SYSFS_ATTR(RPn_freq_mhz, 0444, rps_rp_mhz_show, NULL);

-:611: CHECK:LINE_SPACING: Please don't use multiple blank lines
#611: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:319:
+
+

-:620: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_##s##_RPn_freq_mhz>
#620: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:328:
+		&dev_attr_##s##_RPn_freq_mhz.attr, \

-:639: WARNING:SUSPECT_CODE_INDENT: suspect code indent for conditional statements (8, 19)
#639: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:347:
+	} else if (attr == &dev_attr_gt_RP1_freq_mhz ||
[...]
+		   val = intel_rps_get_rp1_frequency(rps);

-:642: WARNING:SUSPECT_CODE_INDENT: suspect code indent for conditional statements (8, 19)
#642: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:350:
+	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||
[...]
+		   val = intel_rps_get_rpn_frequency(rps);

-:642: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_gt_RPn_freq_mhz>
#642: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:350:
+	} else if (attr == &dev_attr_gt_RPn_freq_mhz ||

-:643: CHECK:CAMELCASE: Avoid CamelCase: <dev_attr_rps_RPn_freq_mhz>
#643: FILE: drivers/gpu/drm/i915/gt/sysfs_gt_pm.c:351:
+		   attr == &dev_attr_rps_RPn_freq_mhz) {

total: 0 errors, 3 warnings, 9 checks, 985 lines checked