[RFC v5 00/33] Implicit dev_priv removal and GT compartmentalization

[RFC v5 00/33] Implicit dev_priv removal and GT compartmentalization

[Tvrtko Ursulin]

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

Review feedback from v4 only this time.

Tvrtko Ursulin (33):
  drm/i915: Convert intel_vgt_(de)balloon to uncore
  drm/i915: Introduce struct intel_gt as replacement for anonymous
    i915->gt
  drm/i915: Move intel_gt initialization to a separate file
  drm/i915: Store some backpointers in struct intel_gt
  drm/i915: Move intel_gt_pm_init under intel_gt_init_early
  drm/i915: Make i915_check_and_clear_faults take intel_gt
  drm/i915: Convert i915_gem_init_swizzling to intel_gt
  drm/i915: Use intel_uncore_rmw in intel_gt_init_swizzling
  drm/i915: Convert init_unused_rings to intel_gt
  drm/i915: Convert gt workarounds to intel_gt
  drm/i915: Store backpointer to intel_gt in the engine
  drm/i915: Convert intel_mocs_init_l3cc_table to intel_gt
  drm/i915: Convert i915_ppgtt_init_hw to intel_gt
  drm/i915: Consolidate some open coded mmio rmw
  drm/i915: Convert i915_gem_init_hw to intel_gt
  drm/i915: Move intel_engines_resume into common init
  drm/i915: Stop using I915_READ/WRITE in intel_wopcm_init_hw
  drm/i915: Compartmentalize i915_ggtt_probe_hw
  drm/i915: Compartmentalize i915_ggtt_init_hw
  drm/i915: Make ggtt invalidation work on ggtt
  drm/i915: Store intel_gt backpointer in vm
  drm/i915: Compartmentalize i915_gem_suspend/restore_gtt_mappings
  drm/i915: Convert i915_gem_flush_ggtt_writes to intel_gt
  drm/i915: Move i915_gem_chipset_flush to intel_gt
  drm/i915: Compartmentalize timeline_init/park/fini
  drm/i915: Compartmentalize i915_ggtt_cleanup_hw
  drm/i915: Compartmentalize i915_gem_init_ggtt
  drm/i915: Store ggtt pointer in intel_gt
  drm/i915: Compartmentalize ring buffer creation
  drm/i915: Save trip via top-level i915 in a few more places
  drm/i915: Make timelines gt centric
  drm/i915: Rename i915_timeline to intel_timeline and move under gt
  drm/i915: Eliminate dual personality of i915_scratch_offset

 drivers/gpu/drm/i915/Makefile                 |   3 +-
 drivers/gpu/drm/i915/Makefile.header-test     |   1 -
 drivers/gpu/drm/i915/gem/i915_gem_context.c   |  10 +-
 .../gpu/drm/i915/gem/i915_gem_context_types.h |   4 +-
 .../gpu/drm/i915/gem/i915_gem_execbuffer.c    |   5 +-
 drivers/gpu/drm/i915/gem/i915_gem_object.c    |  12 +-
 drivers/gpu/drm/i915/gem/i915_gem_phys.c      |   3 +-
 drivers/gpu/drm/i915/gem/i915_gem_pm.c        |   2 +-
 .../gpu/drm/i915/gem/selftests/huge_pages.c   |   7 +-
 .../drm/i915/gem/selftests/i915_gem_context.c |   3 +-
 .../drm/i915/gem/selftests/i915_gem_mman.c    |   3 +-
 drivers/gpu/drm/i915/gt/intel_engine.h        |   4 +-
 drivers/gpu/drm/i915/gt/intel_engine_cs.c     |  23 +-
 drivers/gpu/drm/i915/gt/intel_engine_types.h  |   6 +-
 drivers/gpu/drm/i915/gt/intel_gt.c            | 243 ++++++++++++
 drivers/gpu/drm/i915/gt/intel_gt.h            |  33 ++
 drivers/gpu/drm/i915/gt/intel_gt_pm.c         |   6 +-
 drivers/gpu/drm/i915/gt/intel_gt_pm.h         |   3 +-
 drivers/gpu/drm/i915/gt/intel_gt_types.h      |  61 +++
 drivers/gpu/drm/i915/gt/intel_lrc.c           |  26 +-
 drivers/gpu/drm/i915/gt/intel_mocs.c          |  52 ++-
 drivers/gpu/drm/i915/gt/intel_mocs.h          |   3 +-
 drivers/gpu/drm/i915/gt/intel_reset.c         | 128 +-----
 drivers/gpu/drm/i915/gt/intel_reset.h         |   2 -
 drivers/gpu/drm/i915/gt/intel_ringbuffer.c    |  64 +--
 .../{i915_timeline.c => gt/intel_timeline.c}  | 204 +++++-----
 drivers/gpu/drm/i915/gt/intel_timeline.h      |  93 +++++
 .../intel_timeline_types.h}                   |   8 +-
 drivers/gpu/drm/i915/gt/intel_workarounds.c   |  12 +-
 drivers/gpu/drm/i915/gt/intel_workarounds.h   |   6 +-
 drivers/gpu/drm/i915/gt/mock_engine.c         |  10 +-
 drivers/gpu/drm/i915/gt/selftest_hangcheck.c  |  22 +-
 .../selftest_timeline.c}                      | 124 +++---
 .../gpu/drm/i915/gt/selftest_workarounds.c    |   7 +-
 .../i915/{ => gt}/selftests/mock_timeline.c   |   8 +-
 .../i915/{ => gt}/selftests/mock_timeline.h   |   6 +-
 drivers/gpu/drm/i915/i915_drv.c               |  11 +-
 drivers/gpu/drm/i915/i915_drv.h               |  52 +--
 drivers/gpu/drm/i915/i915_gem.c               | 238 +++++------
 drivers/gpu/drm/i915/i915_gem_fence_reg.c     |  32 ++
 drivers/gpu/drm/i915/i915_gem_fence_reg.h     |   3 +
 drivers/gpu/drm/i915/i915_gem_gtt.c           | 373 +++++++++++-------
 drivers/gpu/drm/i915/i915_gem_gtt.h           |  10 +-
 drivers/gpu/drm/i915/i915_gem_render_state.c  |   2 +-
 drivers/gpu/drm/i915/i915_gpu_error.c         |   4 +-
 drivers/gpu/drm/i915/i915_request.c           |  14 +-
 drivers/gpu/drm/i915/i915_request.h           |   8 +-
 drivers/gpu/drm/i915/i915_timeline.h          |  94 -----
 drivers/gpu/drm/i915/i915_vgpu.c              |  24 +-
 drivers/gpu/drm/i915/i915_vgpu.h              |   4 +-
 drivers/gpu/drm/i915/i915_vma.c               |   3 +-
 drivers/gpu/drm/i915/intel_wopcm.c            |  31 +-
 drivers/gpu/drm/i915/intel_wopcm.h            |   4 +-
 drivers/gpu/drm/i915/selftests/i915_gem_gtt.c |   2 +-
 .../drm/i915/selftests/i915_live_selftests.h  |   2 +-
 .../drm/i915/selftests/i915_mock_selftests.h  |   2 +-
 drivers/gpu/drm/i915/selftests/i915_request.c |  10 +-
 drivers/gpu/drm/i915/selftests/igt_spinner.c  |   7 +-
 drivers/gpu/drm/i915/selftests/igt_spinner.h  |   3 +
 .../gpu/drm/i915/selftests/mock_gem_device.c  |  13 +-
 60 files changed, 1227 insertions(+), 926 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt.c
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt.h
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_types.h
 rename drivers/gpu/drm/i915/{i915_timeline.c => gt/intel_timeline.c} (72%)
 create mode 100644 drivers/gpu/drm/i915/gt/intel_timeline.h
 rename drivers/gpu/drm/i915/{i915_timeline_types.h => gt/intel_timeline_types.h} (92%)
 rename drivers/gpu/drm/i915/{selftests/i915_timeline.c => gt/selftest_timeline.c} (87%)
 rename drivers/gpu/drm/i915/{ => gt}/selftests/mock_timeline.c (68%)
 rename drivers/gpu/drm/i915/{ => gt}/selftests/mock_timeline.h (53%)
 delete mode 100644 drivers/gpu/drm/i915/i915_timeline.h

-- 
2.20.1

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[RFC 01/33] drm/i915: Convert intel_vgt_(de)balloon to uncore

[Tvrtko Ursulin]

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

More removal of implicit dev_priv from using old mmio accessors.

Furthermore these calls really operate on ggtt so it logically makes sense
if they take it as parameter.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c |  4 ++--
 drivers/gpu/drm/i915/i915_vgpu.c    | 24 ++++++++++++++----------
 drivers/gpu/drm/i915/i915_vgpu.h    |  4 ++--
 3 files changed, 18 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 278de04a96aa..7c5d3a9f18f7 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2859,7 +2859,7 @@ int i915_gem_init_ggtt(struct drm_i915_private *dev_priv)
 	ggtt->pin_bias = max_t(u32, I915_GTT_PAGE_SIZE,
 			       intel_wopcm_guc_size(&dev_priv->wopcm));
 
-	ret = intel_vgt_balloon(dev_priv);
+	ret = intel_vgt_balloon(ggtt);
 	if (ret)
 		return ret;
 
@@ -2930,7 +2930,7 @@ void i915_ggtt_cleanup_hw(struct drm_i915_private *dev_priv)
 	ggtt_release_guc_top(ggtt);
 
 	if (drm_mm_initialized(&ggtt->vm.mm)) {
-		intel_vgt_deballoon(dev_priv);
+		intel_vgt_deballoon(ggtt);
 		i915_address_space_fini(&ggtt->vm);
 	}
 
diff --git a/drivers/gpu/drm/i915/i915_vgpu.c b/drivers/gpu/drm/i915/i915_vgpu.c
index 94d3992b599d..41ed9a3f52b4 100644
--- a/drivers/gpu/drm/i915/i915_vgpu.c
+++ b/drivers/gpu/drm/i915/i915_vgpu.c
@@ -117,17 +117,17 @@ static void vgt_deballoon_space(struct i915_ggtt *ggtt,
  * This function is called to deallocate the ballooned-out graphic memory, when
  * driver is unloaded or when ballooning fails.
  */
-void intel_vgt_deballoon(struct drm_i915_private *dev_priv)
+void intel_vgt_deballoon(struct i915_ggtt *ggtt)
 {
 	int i;
 
-	if (!intel_vgpu_active(dev_priv))
+	if (!intel_vgpu_active(ggtt->vm.i915))
 		return;
 
 	DRM_DEBUG("VGT deballoon.\n");
 
 	for (i = 0; i < 4; i++)
-		vgt_deballoon_space(&dev_priv->ggtt, &bl_info.space[i]);
+		vgt_deballoon_space(ggtt, &bl_info.space[i]);
 }
 
 static int vgt_balloon_space(struct i915_ggtt *ggtt,
@@ -195,22 +195,26 @@ static int vgt_balloon_space(struct i915_ggtt *ggtt,
  * Returns:
  * zero on success, non-zero if configuration invalid or ballooning failed
  */
-int intel_vgt_balloon(struct drm_i915_private *dev_priv)
+int intel_vgt_balloon(struct i915_ggtt *ggtt)
 {
-	struct i915_ggtt *ggtt = &dev_priv->ggtt;
+	struct intel_uncore *uncore = &ggtt->vm.i915->uncore;
 	unsigned long ggtt_end = ggtt->vm.total;
 
 	unsigned long mappable_base, mappable_size, mappable_end;
 	unsigned long unmappable_base, unmappable_size, unmappable_end;
 	int ret;
 
-	if (!intel_vgpu_active(dev_priv))
+	if (!intel_vgpu_active(ggtt->vm.i915))
 		return 0;
 
-	mappable_base = I915_READ(vgtif_reg(avail_rs.mappable_gmadr.base));
-	mappable_size = I915_READ(vgtif_reg(avail_rs.mappable_gmadr.size));
-	unmappable_base = I915_READ(vgtif_reg(avail_rs.nonmappable_gmadr.base));
-	unmappable_size = I915_READ(vgtif_reg(avail_rs.nonmappable_gmadr.size));
+	mappable_base =
+	  intel_uncore_read(uncore, vgtif_reg(avail_rs.mappable_gmadr.base));
+	mappable_size =
+	  intel_uncore_read(uncore, vgtif_reg(avail_rs.mappable_gmadr.size));
+	unmappable_base =
+	  intel_uncore_read(uncore, vgtif_reg(avail_rs.nonmappable_gmadr.base));
+	unmappable_size =
+	  intel_uncore_read(uncore, vgtif_reg(avail_rs.nonmappable_gmadr.size));
 
 	mappable_end = mappable_base + mappable_size;
 	unmappable_end = unmappable_base + unmappable_size;
diff --git a/drivers/gpu/drm/i915/i915_vgpu.h b/drivers/gpu/drm/i915/i915_vgpu.h
index ebe1b7bced98..e918f418503f 100644
--- a/drivers/gpu/drm/i915/i915_vgpu.h
+++ b/drivers/gpu/drm/i915/i915_vgpu.h
@@ -42,7 +42,7 @@ intel_vgpu_has_huge_gtt(struct drm_i915_private *dev_priv)
 	return dev_priv->vgpu.caps & VGT_CAPS_HUGE_GTT;
 }
 
-int intel_vgt_balloon(struct drm_i915_private *dev_priv);
-void intel_vgt_deballoon(struct drm_i915_private *dev_priv);
+int intel_vgt_balloon(struct i915_ggtt *ggtt);
+void intel_vgt_deballoon(struct i915_ggtt *ggtt);
 
 #endif /* _I915_VGPU_H_ */
-- 
2.20.1

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[RFC 02/33] drm/i915: Introduce struct intel_gt as replacement for anonymous i915->gt

[Tvrtko Ursulin]

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

We have long been slighlty annoyed by the anonymous i915->gt.

Promote it to a separate structure and give it its own header.

This is a first step towards cleaning up the separation between i915 and gt.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/intel_gt_types.h | 53 ++++++++++++++++++++++++
 drivers/gpu/drm/i915/i915_drv.h          | 34 +--------------
 2 files changed, 55 insertions(+), 32 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt_types.h

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
new file mode 100644
index 000000000000..dcdb18e0dd84
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
@@ -0,0 +1,53 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef __INTEL_GT_TYPES__
+#define __INTEL_GT_TYPES__
+
+#include <linux/ktime.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/notifier.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+
+#include "i915_vma.h"
+#include "intel_wakeref.h"
+
+struct intel_gt {
+	struct i915_gt_timelines {
+		struct mutex mutex; /* protects list, tainted by GPU */
+		struct list_head active_list;
+
+		/* Pack multiple timelines' seqnos into the same page */
+		spinlock_t hwsp_lock;
+		struct list_head hwsp_free_list;
+	} timelines;
+
+	struct list_head active_rings;
+
+	struct intel_wakeref wakeref;
+
+	struct list_head closed_vma;
+	spinlock_t closed_lock; /* guards the list of closed_vma */
+
+	/**
+	 * Is the GPU currently considered idle, or busy executing
+	 * userspace requests? Whilst idle, we allow runtime power
+	 * management to power down the hardware and display clocks.
+	 * In order to reduce the effect on performance, there
+	 * is a slight delay before we do so.
+	 */
+	intel_wakeref_t awake;
+
+	struct blocking_notifier_head pm_notifications;
+
+	ktime_t last_init_time;
+
+	struct i915_vma *scratch;
+};
+
+#endif /* __INTEL_GT_TYPES_H__ */
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 9dce1c71bb9d..714963d7b3fe 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -65,6 +65,7 @@
 
 #include "gt/intel_lrc.h"
 #include "gt/intel_engine.h"
+#include "gt/intel_gt_types.h"
 #include "gt/intel_workarounds.h"
 
 #include "intel_bios.h"
@@ -1822,38 +1823,7 @@ struct drm_i915_private {
 	} perf;
 
 	/* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
-	struct {
-		struct i915_gt_timelines {
-			struct mutex mutex; /* protects list, tainted by GPU */
-			struct list_head active_list;
-
-			/* Pack multiple timelines' seqnos into the same page */
-			spinlock_t hwsp_lock;
-			struct list_head hwsp_free_list;
-		} timelines;
-
-		struct list_head active_rings;
-
-		struct intel_wakeref wakeref;
-
-		struct list_head closed_vma;
-		spinlock_t closed_lock; /* guards the list of closed_vma */
-
-		/**
-		 * Is the GPU currently considered idle, or busy executing
-		 * userspace requests? Whilst idle, we allow runtime power
-		 * management to power down the hardware and display clocks.
-		 * In order to reduce the effect on performance, there
-		 * is a slight delay before we do so.
-		 */
-		intel_wakeref_t awake;
-
-		struct blocking_notifier_head pm_notifications;
-
-		ktime_t last_init_time;
-
-		struct i915_vma *scratch;
-	} gt;
+	struct intel_gt gt;
 
 	struct {
 		struct notifier_block pm_notifier;
-- 
2.20.1

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[RFC 03/33] drm/i915: Move intel_gt initialization to a separate file

[Tvrtko Ursulin]

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

As it will grow in a following patch make a new home for it.

v2:
 * Convert mock_gem_device as well. (Chris)

v3:
 * Rename to intel_gt_init_early and move call site to i915_drv.c. (Chris)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> # v2
---
 drivers/gpu/drm/i915/Makefile                    |  1 +
 drivers/gpu/drm/i915/gt/intel_gt.c               | 15 +++++++++++++++
 drivers/gpu/drm/i915/gt/intel_gt.h               | 14 ++++++++++++++
 drivers/gpu/drm/i915/i915_drv.c                  |  3 +++
 drivers/gpu/drm/i915/i915_gem.c                  |  4 ----
 drivers/gpu/drm/i915/selftests/mock_gem_device.c |  6 ++----
 6 files changed, 35 insertions(+), 8 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt.c
 create mode 100644 drivers/gpu/drm/i915/gt/intel_gt.h

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index c0a7b2994077..8df1bf2855d0 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -73,6 +73,7 @@ gt-y += \
 	gt/intel_context.o \
 	gt/intel_engine_cs.o \
 	gt/intel_engine_pm.o \
+	gt/intel_gt.o \
 	gt/intel_gt_pm.o \
 	gt/intel_hangcheck.o \
 	gt/intel_lrc.o \
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
new file mode 100644
index 000000000000..29a0f0a32549
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -0,0 +1,15 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2019 Intel Corporation
+ */
+
+#include "intel_gt.h"
+
+void intel_gt_init_early(struct intel_gt *gt)
+{
+	INIT_LIST_HEAD(&gt->active_rings);
+	INIT_LIST_HEAD(&gt->closed_vma);
+
+	spin_lock_init(&gt->closed_lock);
+}
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
new file mode 100644
index 000000000000..d153e7fb4c08
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/intel_gt.h
@@ -0,0 +1,14 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef __INTEL_GT__
+#define __INTEL_GT__
+
+#include "gt/intel_gt_types.h"
+
+void intel_gt_init_early(struct intel_gt *gt);
+
+#endif /* __INTEL_GT_H__ */
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 65d599065709..ff175d1f2aad 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -49,6 +49,7 @@
 
 #include "gem/i915_gem_context.h"
 #include "gem/i915_gem_ioctls.h"
+#include "gt/intel_gt.h"
 #include "gt/intel_gt_pm.h"
 #include "gt/intel_reset.h"
 #include "gt/intel_workarounds.h"
@@ -915,6 +916,8 @@ static int i915_driver_init_early(struct drm_i915_private *dev_priv)
 	if (ret < 0)
 		goto err_engines;
 
+	intel_gt_init_early(&dev_priv->gt);
+
 	ret = i915_gem_init_early(dev_priv);
 	if (ret < 0)
 		goto err_workqueues;
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 335efeaad4f1..3d490001534e 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1747,10 +1747,6 @@ int i915_gem_init_early(struct drm_i915_private *dev_priv)
 
 	intel_gt_pm_init(dev_priv);
 
-	INIT_LIST_HEAD(&dev_priv->gt.active_rings);
-	INIT_LIST_HEAD(&dev_priv->gt.closed_vma);
-	spin_lock_init(&dev_priv->gt.closed_lock);
-
 	i915_gem_init__mm(dev_priv);
 	i915_gem_init__pm(dev_priv);
 
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 64bc51400ae7..8dc9296892e6 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -25,6 +25,7 @@
 #include <linux/pm_domain.h>
 #include <linux/pm_runtime.h>
 
+#include "gt/intel_gt.h"
 #include "gt/mock_engine.h"
 
 #include "mock_request.h"
@@ -179,6 +180,7 @@ struct drm_i915_private *mock_gem_device(void)
 
 	mock_uncore_init(&i915->uncore);
 	i915_gem_init__mm(i915);
+	intel_gt_init_early(&i915->gt);
 	intel_gt_pm_init(i915);
 	atomic_inc(&i915->gt.wakeref.count); /* disable; no hw support */
 
@@ -200,10 +202,6 @@ struct drm_i915_private *mock_gem_device(void)
 
 	i915_timelines_init(i915);
 
-	INIT_LIST_HEAD(&i915->gt.active_rings);
-	INIT_LIST_HEAD(&i915->gt.closed_vma);
-	spin_lock_init(&i915->gt.closed_lock);
-
 	mutex_lock(&i915->drm.struct_mutex);
 
 	mock_init_ggtt(i915, &i915->ggtt);
-- 
2.20.1

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[RFC 04/33] drm/i915: Store some backpointers in struct intel_gt

[Tvrtko Ursulin]

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

We need an easy way to get back to i915 and uncore.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/intel_gt.c               | 7 ++++++-
 drivers/gpu/drm/i915/gt/intel_gt.h               | 4 +++-
 drivers/gpu/drm/i915/gt/intel_gt_types.h         | 6 ++++++
 drivers/gpu/drm/i915/i915_drv.c                  | 2 +-
 drivers/gpu/drm/i915/selftests/mock_gem_device.c | 2 +-
 5 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 29a0f0a32549..6b7e857ca240 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -4,10 +4,15 @@
  * Copyright © 2019 Intel Corporation
  */
 
+#include "i915_drv.h"
+
 #include "intel_gt.h"
 
-void intel_gt_init_early(struct intel_gt *gt)
+void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
 {
+	gt->i915 = i915;
+	gt->uncore = &i915->uncore;
+
 	INIT_LIST_HEAD(&gt->active_rings);
 	INIT_LIST_HEAD(&gt->closed_vma);
 
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
index d153e7fb4c08..7a6f8178d2e5 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt.h
@@ -9,6 +9,8 @@
 
 #include "gt/intel_gt_types.h"
 
-void intel_gt_init_early(struct intel_gt *gt);
+struct drm_i915_private;
+
+void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915);
 
 #endif /* __INTEL_GT_H__ */
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
index dcdb18e0dd84..d96df4f68741 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
@@ -17,7 +17,13 @@
 #include "i915_vma.h"
 #include "intel_wakeref.h"
 
+struct drm_i915_private;
+struct intel_uncore;
+
 struct intel_gt {
+	struct drm_i915_private *i915;
+	struct intel_uncore *uncore;
+
 	struct i915_gt_timelines {
 		struct mutex mutex; /* protects list, tainted by GPU */
 		struct list_head active_list;
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index ff175d1f2aad..50ab46ab8fcd 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -916,7 +916,7 @@ static int i915_driver_init_early(struct drm_i915_private *dev_priv)
 	if (ret < 0)
 		goto err_engines;
 
-	intel_gt_init_early(&dev_priv->gt);
+	intel_gt_init_early(&dev_priv->gt, dev_priv);
 
 	ret = i915_gem_init_early(dev_priv);
 	if (ret < 0)
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 8dc9296892e6..2b87200477f6 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -180,7 +180,7 @@ struct drm_i915_private *mock_gem_device(void)
 
 	mock_uncore_init(&i915->uncore);
 	i915_gem_init__mm(i915);
-	intel_gt_init_early(&i915->gt);
+	intel_gt_init_early(&i915->gt, i915);
 	intel_gt_pm_init(i915);
 	atomic_inc(&i915->gt.wakeref.count); /* disable; no hw support */
 
-- 
2.20.1

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[RFC 05/33] drm/i915: Move intel_gt_pm_init under intel_gt_init_early

[Tvrtko Ursulin]

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

And also rename to intel_gt_pm_init_early and make it operate on gt.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/intel_gt.c               | 3 +++
 drivers/gpu/drm/i915/gt/intel_gt_pm.c            | 6 +++---
 drivers/gpu/drm/i915/gt/intel_gt_pm.h            | 3 ++-
 drivers/gpu/drm/i915/i915_gem.c                  | 2 --
 drivers/gpu/drm/i915/selftests/mock_gem_device.c | 1 -
 5 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 6b7e857ca240..12ebe7a2a1e9 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -7,6 +7,7 @@
 #include "i915_drv.h"
 
 #include "intel_gt.h"
+#include "intel_gt_pm.h"
 
 void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
 {
@@ -17,4 +18,6 @@ void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
 	INIT_LIST_HEAD(&gt->closed_vma);
 
 	spin_lock_init(&gt->closed_lock);
+
+	intel_gt_pm_init_early(gt);
 }
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
index 7b5967751762..6062840b5b46 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
@@ -80,10 +80,10 @@ void intel_gt_pm_put(struct drm_i915_private *i915)
 	intel_wakeref_put(&i915->runtime_pm, &i915->gt.wakeref, intel_gt_park);
 }
 
-void intel_gt_pm_init(struct drm_i915_private *i915)
+void intel_gt_pm_init_early(struct intel_gt *gt)
 {
-	intel_wakeref_init(&i915->gt.wakeref);
-	BLOCKING_INIT_NOTIFIER_HEAD(&i915->gt.pm_notifications);
+	intel_wakeref_init(&gt->wakeref);
+	BLOCKING_INIT_NOTIFIER_HEAD(&gt->pm_notifications);
 }
 
 static bool reset_engines(struct drm_i915_private *i915)
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.h b/drivers/gpu/drm/i915/gt/intel_gt_pm.h
index 7dd1130a19a4..b6049a907890 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.h
@@ -10,6 +10,7 @@
 #include <linux/types.h>
 
 struct drm_i915_private;
+struct intel_gt;
 
 enum {
 	INTEL_GT_UNPARK,
@@ -19,7 +20,7 @@ enum {
 void intel_gt_pm_get(struct drm_i915_private *i915);
 void intel_gt_pm_put(struct drm_i915_private *i915);
 
-void intel_gt_pm_init(struct drm_i915_private *i915);
+void intel_gt_pm_init_early(struct intel_gt *gt);
 
 void intel_gt_sanitize(struct drm_i915_private *i915, bool force);
 void intel_gt_resume(struct drm_i915_private *i915);
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 3d490001534e..1db2becbec64 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1745,8 +1745,6 @@ int i915_gem_init_early(struct drm_i915_private *dev_priv)
 {
 	int err;
 
-	intel_gt_pm_init(dev_priv);
-
 	i915_gem_init__mm(dev_priv);
 	i915_gem_init__pm(dev_priv);
 
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 2b87200477f6..021ba42a3a00 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -181,7 +181,6 @@ struct drm_i915_private *mock_gem_device(void)
 	mock_uncore_init(&i915->uncore);
 	i915_gem_init__mm(i915);
 	intel_gt_init_early(&i915->gt, i915);
-	intel_gt_pm_init(i915);
 	atomic_inc(&i915->gt.wakeref.count); /* disable; no hw support */
 
 	init_waitqueue_head(&i915->gpu_error.wait_queue);
-- 
2.20.1

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[RFC 06/33] drm/i915: Make i915_check_and_clear_faults take intel_gt

[Tvrtko Ursulin]

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

Continuing the conversion and elimination of implicit dev_priv.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Suggested-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/intel_engine_cs.c |   4 +-
 drivers/gpu/drm/i915/gt/intel_gt.c        | 129 ++++++++++++++++++++++
 drivers/gpu/drm/i915/gt/intel_gt.h        |   5 +
 drivers/gpu/drm/i915/gt/intel_reset.c     | 126 +--------------------
 drivers/gpu/drm/i915/gt/intel_reset.h     |   2 -
 drivers/gpu/drm/i915/i915_drv.c           |   2 +-
 drivers/gpu/drm/i915/i915_gem_gtt.c       |   6 +-
 7 files changed, 144 insertions(+), 130 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 898692989313..80ff475f8d53 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -28,6 +28,8 @@
 
 #include "i915_drv.h"
 
+#include "gt/intel_gt.h"
+
 #include "intel_engine.h"
 #include "intel_engine_pm.h"
 #include "intel_context.h"
@@ -453,7 +455,7 @@ int intel_engines_init_mmio(struct drm_i915_private *i915)
 
 	RUNTIME_INFO(i915)->num_engines = hweight32(mask);
 
-	i915_check_and_clear_faults(i915);
+	intel_gt_check_and_clear_faults(&i915->gt);
 
 	intel_setup_engine_capabilities(i915);
 
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 12ebe7a2a1e9..6f6f61cc142d 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -8,6 +8,7 @@
 
 #include "intel_gt.h"
 #include "intel_gt_pm.h"
+#include "intel_uncore.h"
 
 void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
 {
@@ -21,3 +22,131 @@ void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
 
 	intel_gt_pm_init_early(gt);
 }
+
+static void rmw_set(struct intel_uncore *uncore, i915_reg_t reg, u32 set)
+{
+	intel_uncore_rmw(uncore, reg, 0, set);
+}
+
+static void rmw_clear(struct intel_uncore *uncore, i915_reg_t reg, u32 clr)
+{
+	intel_uncore_rmw(uncore, reg, clr, 0);
+}
+
+static void clear_register(struct intel_uncore *uncore, i915_reg_t reg)
+{
+	intel_uncore_rmw(uncore, reg, 0, 0);
+}
+
+static void gen8_clear_engine_error_register(struct intel_engine_cs *engine)
+{
+	GEN6_RING_FAULT_REG_RMW(engine, RING_FAULT_VALID, 0);
+	GEN6_RING_FAULT_REG_POSTING_READ(engine);
+}
+
+void
+intel_gt_clear_error_registers(struct intel_gt *gt,
+			       intel_engine_mask_t engine_mask)
+{
+	struct drm_i915_private *i915 = gt->i915;
+	struct intel_uncore *uncore = gt->uncore;
+	u32 eir;
+
+	if (!IS_GEN(i915, 2))
+		clear_register(uncore, PGTBL_ER);
+
+	if (INTEL_GEN(i915) < 4)
+		clear_register(uncore, IPEIR(RENDER_RING_BASE));
+	else
+		clear_register(uncore, IPEIR_I965);
+
+	clear_register(uncore, EIR);
+	eir = intel_uncore_read(uncore, EIR);
+	if (eir) {
+		/*
+		 * some errors might have become stuck,
+		 * mask them.
+		 */
+		DRM_DEBUG_DRIVER("EIR stuck: 0x%08x, masking\n", eir);
+		rmw_set(uncore, EMR, eir);
+		intel_uncore_write(uncore, GEN2_IIR,
+				   I915_MASTER_ERROR_INTERRUPT);
+	}
+
+	if (INTEL_GEN(i915) >= 8) {
+		rmw_clear(uncore, GEN8_RING_FAULT_REG, RING_FAULT_VALID);
+		intel_uncore_posting_read(uncore, GEN8_RING_FAULT_REG);
+	} else if (INTEL_GEN(i915) >= 6) {
+		struct intel_engine_cs *engine;
+		enum intel_engine_id id;
+
+		for_each_engine_masked(engine, i915, engine_mask, id)
+			gen8_clear_engine_error_register(engine);
+	}
+}
+
+static void gen6_check_faults(struct intel_gt *gt)
+{
+	struct intel_engine_cs *engine;
+	enum intel_engine_id id;
+	u32 fault;
+
+	for_each_engine(engine, gt->i915, id) {
+		fault = GEN6_RING_FAULT_REG_READ(engine);
+		if (fault & RING_FAULT_VALID) {
+			DRM_DEBUG_DRIVER("Unexpected fault\n"
+					 "\tAddr: 0x%08lx\n"
+					 "\tAddress space: %s\n"
+					 "\tSource ID: %d\n"
+					 "\tType: %d\n",
+					 fault & PAGE_MASK,
+					 fault & RING_FAULT_GTTSEL_MASK ? "GGTT" : "PPGTT",
+					 RING_FAULT_SRCID(fault),
+					 RING_FAULT_FAULT_TYPE(fault));
+		}
+	}
+}
+
+static void gen8_check_faults(struct intel_gt *gt)
+{
+	struct intel_uncore *uncore = gt->uncore;
+	u32 fault = intel_uncore_read(uncore, GEN8_RING_FAULT_REG);
+
+	if (fault & RING_FAULT_VALID) {
+		u32 fault_data0, fault_data1;
+		u64 fault_addr;
+
+		fault_data0 = intel_uncore_read(uncore, GEN8_FAULT_TLB_DATA0);
+		fault_data1 = intel_uncore_read(uncore, GEN8_FAULT_TLB_DATA1);
+		fault_addr = ((u64)(fault_data1 & FAULT_VA_HIGH_BITS) << 44) |
+			     ((u64)fault_data0 << 12);
+
+		DRM_DEBUG_DRIVER("Unexpected fault\n"
+				 "\tAddr: 0x%08x_%08x\n"
+				 "\tAddress space: %s\n"
+				 "\tEngine ID: %d\n"
+				 "\tSource ID: %d\n"
+				 "\tType: %d\n",
+				 upper_32_bits(fault_addr),
+				 lower_32_bits(fault_addr),
+				 fault_data1 & FAULT_GTT_SEL ? "GGTT" : "PPGTT",
+				 GEN8_RING_FAULT_ENGINE_ID(fault),
+				 RING_FAULT_SRCID(fault),
+				 RING_FAULT_FAULT_TYPE(fault));
+	}
+}
+
+void intel_gt_check_and_clear_faults(struct intel_gt *gt)
+{
+	struct drm_i915_private *i915 = gt->i915;
+
+	/* From GEN8 onwards we only have one 'All Engine Fault Register' */
+	if (INTEL_GEN(i915) >= 8)
+		gen8_check_faults(gt);
+	else if (INTEL_GEN(i915) >= 6)
+		gen6_check_faults(gt);
+	else
+		return;
+
+	intel_gt_clear_error_registers(gt, ALL_ENGINES);
+}
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
index 7a6f8178d2e5..1847c189bd78 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt.h
@@ -7,10 +7,15 @@
 #ifndef __INTEL_GT__
 #define __INTEL_GT__
 
+#include "gt/intel_engine_types.h"
 #include "gt/intel_gt_types.h"
 
 struct drm_i915_private;
 
 void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915);
 
+void intel_gt_check_and_clear_faults(struct intel_gt *gt);
+void intel_gt_clear_error_registers(struct intel_gt *gt,
+				    intel_engine_mask_t engine_mask);
+
 #endif /* __INTEL_GT_H__ */
diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c b/drivers/gpu/drm/i915/gt/intel_reset.c
index 84c670bdb081..a70c59390bf4 100644
--- a/drivers/gpu/drm/i915/gt/intel_reset.c
+++ b/drivers/gpu/drm/i915/gt/intel_reset.c
@@ -13,6 +13,7 @@
 #include "i915_gpu_error.h"
 #include "i915_irq.h"
 #include "intel_engine_pm.h"
+#include "intel_gt.h"
 #include "intel_gt_pm.h"
 #include "intel_reset.h"
 
@@ -24,16 +25,6 @@
 /* XXX How to handle concurrent GGTT updates using tiling registers? */
 #define RESET_UNDER_STOP_MACHINE 0
 
-static void rmw_set(struct intel_uncore *uncore, i915_reg_t reg, u32 set)
-{
-	intel_uncore_rmw(uncore, reg, 0, set);
-}
-
-static void rmw_clear(struct intel_uncore *uncore, i915_reg_t reg, u32 clr)
-{
-	intel_uncore_rmw(uncore, reg, clr, 0);
-}
-
 static void rmw_set_fw(struct intel_uncore *uncore, i915_reg_t reg, u32 set)
 {
 	intel_uncore_rmw_fw(uncore, reg, 0, set);
@@ -1156,119 +1147,6 @@ static void i915_reset_device(struct drm_i915_private *i915,
 		kobject_uevent_env(kobj, KOBJ_CHANGE, reset_done_event);
 }
 
-static void clear_register(struct intel_uncore *uncore, i915_reg_t reg)
-{
-	intel_uncore_rmw(uncore, reg, 0, 0);
-}
-
-static void gen8_clear_engine_error_register(struct intel_engine_cs *engine)
-{
-	GEN6_RING_FAULT_REG_RMW(engine, RING_FAULT_VALID, 0);
-	GEN6_RING_FAULT_REG_POSTING_READ(engine);
-}
-
-static void clear_error_registers(struct drm_i915_private *i915,
-				  intel_engine_mask_t engine_mask)
-{
-	struct intel_uncore *uncore = &i915->uncore;
-	u32 eir;
-
-	if (!IS_GEN(i915, 2))
-		clear_register(uncore, PGTBL_ER);
-
-	if (INTEL_GEN(i915) < 4)
-		clear_register(uncore, IPEIR(RENDER_RING_BASE));
-	else
-		clear_register(uncore, IPEIR_I965);
-
-	clear_register(uncore, EIR);
-	eir = intel_uncore_read(uncore, EIR);
-	if (eir) {
-		/*
-		 * some errors might have become stuck,
-		 * mask them.
-		 */
-		DRM_DEBUG_DRIVER("EIR stuck: 0x%08x, masking\n", eir);
-		rmw_set(uncore, EMR, eir);
-		intel_uncore_write(uncore, GEN2_IIR,
-				   I915_MASTER_ERROR_INTERRUPT);
-	}
-
-	if (INTEL_GEN(i915) >= 8) {
-		rmw_clear(uncore, GEN8_RING_FAULT_REG, RING_FAULT_VALID);
-		intel_uncore_posting_read(uncore, GEN8_RING_FAULT_REG);
-	} else if (INTEL_GEN(i915) >= 6) {
-		struct intel_engine_cs *engine;
-		enum intel_engine_id id;
-
-		for_each_engine_masked(engine, i915, engine_mask, id)
-			gen8_clear_engine_error_register(engine);
-	}
-}
-
-static void gen6_check_faults(struct drm_i915_private *dev_priv)
-{
-	struct intel_engine_cs *engine;
-	enum intel_engine_id id;
-	u32 fault;
-
-	for_each_engine(engine, dev_priv, id) {
-		fault = GEN6_RING_FAULT_REG_READ(engine);
-		if (fault & RING_FAULT_VALID) {
-			DRM_DEBUG_DRIVER("Unexpected fault\n"
-					 "\tAddr: 0x%08lx\n"
-					 "\tAddress space: %s\n"
-					 "\tSource ID: %d\n"
-					 "\tType: %d\n",
-					 fault & PAGE_MASK,
-					 fault & RING_FAULT_GTTSEL_MASK ? "GGTT" : "PPGTT",
-					 RING_FAULT_SRCID(fault),
-					 RING_FAULT_FAULT_TYPE(fault));
-		}
-	}
-}
-
-static void gen8_check_faults(struct drm_i915_private *dev_priv)
-{
-	u32 fault = I915_READ(GEN8_RING_FAULT_REG);
-
-	if (fault & RING_FAULT_VALID) {
-		u32 fault_data0, fault_data1;
-		u64 fault_addr;
-
-		fault_data0 = I915_READ(GEN8_FAULT_TLB_DATA0);
-		fault_data1 = I915_READ(GEN8_FAULT_TLB_DATA1);
-		fault_addr = ((u64)(fault_data1 & FAULT_VA_HIGH_BITS) << 44) |
-			     ((u64)fault_data0 << 12);
-
-		DRM_DEBUG_DRIVER("Unexpected fault\n"
-				 "\tAddr: 0x%08x_%08x\n"
-				 "\tAddress space: %s\n"
-				 "\tEngine ID: %d\n"
-				 "\tSource ID: %d\n"
-				 "\tType: %d\n",
-				 upper_32_bits(fault_addr),
-				 lower_32_bits(fault_addr),
-				 fault_data1 & FAULT_GTT_SEL ? "GGTT" : "PPGTT",
-				 GEN8_RING_FAULT_ENGINE_ID(fault),
-				 RING_FAULT_SRCID(fault),
-				 RING_FAULT_FAULT_TYPE(fault));
-	}
-}
-
-void i915_check_and_clear_faults(struct drm_i915_private *i915)
-{
-	/* From GEN8 onwards we only have one 'All Engine Fault Register' */
-	if (INTEL_GEN(i915) >= 8)
-		gen8_check_faults(i915);
-	else if (INTEL_GEN(i915) >= 6)
-		gen6_check_faults(i915);
-	else
-		return;
-
-	clear_error_registers(i915, ALL_ENGINES);
-}
-
 /**
  * i915_handle_error - handle a gpu error
  * @i915: i915 device private
@@ -1317,7 +1195,7 @@ void i915_handle_error(struct drm_i915_private *i915,
 
 	if (flags & I915_ERROR_CAPTURE) {
 		i915_capture_error_state(i915, engine_mask, msg);
-		clear_error_registers(i915, engine_mask);
+		intel_gt_clear_error_registers(&i915->gt, engine_mask);
 	}
 
 	/*
diff --git a/drivers/gpu/drm/i915/gt/intel_reset.h b/drivers/gpu/drm/i915/gt/intel_reset.h
index 580ebdb59eca..03fba0ab3868 100644
--- a/drivers/gpu/drm/i915/gt/intel_reset.h
+++ b/drivers/gpu/drm/i915/gt/intel_reset.h
@@ -25,8 +25,6 @@ void i915_handle_error(struct drm_i915_private *i915,
 		       const char *fmt, ...);
 #define I915_ERROR_CAPTURE BIT(0)
 
-void i915_check_and_clear_faults(struct drm_i915_private *i915);
-
 void i915_reset(struct drm_i915_private *i915,
 		intel_engine_mask_t stalled_mask,
 		const char *reason);
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 50ab46ab8fcd..412cd050b364 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -2344,7 +2344,7 @@ static int i915_drm_resume_early(struct drm_device *dev)
 
 	intel_uncore_resume_early(&dev_priv->uncore);
 
-	i915_check_and_clear_faults(dev_priv);
+	intel_gt_check_and_clear_faults(&dev_priv->gt);
 
 	if (INTEL_GEN(dev_priv) >= 11 || IS_GEN9_LP(dev_priv)) {
 		gen9_sanitize_dc_state(dev_priv);
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 7c5d3a9f18f7..125b8dc325fb 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -35,6 +35,8 @@
 
 #include <drm/i915_drm.h>
 
+#include "gt/intel_gt.h"
+
 #include "i915_drv.h"
 #include "i915_scatterlist.h"
 #include "i915_trace.h"
@@ -2311,7 +2313,7 @@ void i915_gem_suspend_gtt_mappings(struct drm_i915_private *dev_priv)
 	if (INTEL_GEN(dev_priv) < 6)
 		return;
 
-	i915_check_and_clear_faults(dev_priv);
+	intel_gt_check_and_clear_faults(&dev_priv->gt);
 
 	ggtt->vm.clear_range(&ggtt->vm, 0, ggtt->vm.total);
 
@@ -3620,7 +3622,7 @@ void i915_gem_restore_gtt_mappings(struct drm_i915_private *dev_priv)
 	struct i915_ggtt *ggtt = &dev_priv->ggtt;
 	struct i915_vma *vma, *vn;
 
-	i915_check_and_clear_faults(dev_priv);
+	intel_gt_check_and_clear_faults(&dev_priv->gt);
 
 	mutex_lock(&ggtt->vm.mutex);
 
-- 
2.20.1

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[RFC 07/33] drm/i915: Convert i915_gem_init_swizzling to intel_gt

[Tvrtko Ursulin]

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

Start using the newly introduced struct intel_gt to fuse together correct
logical init flow with uncore for more removal of implicit dev_priv in
mmio access.

v2:
 * Move code to i915_gem_fence_reg. (Chris)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.c           |  4 +--
 drivers/gpu/drm/i915/i915_drv.h           |  1 -
 drivers/gpu/drm/i915/i915_gem.c           | 25 +--------------
 drivers/gpu/drm/i915/i915_gem_fence_reg.c | 37 +++++++++++++++++++++++
 drivers/gpu/drm/i915/i915_gem_fence_reg.h |  3 ++
 5 files changed, 43 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 412cd050b364..477da7aff0ed 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -2940,7 +2940,7 @@ static int intel_runtime_suspend(struct device *kdev)
 
 		intel_uc_resume(dev_priv);
 
-		i915_gem_init_swizzling(dev_priv);
+		intel_gt_init_swizzling(&dev_priv->gt);
 		i915_gem_restore_fences(dev_priv);
 
 		enable_rpm_wakeref_asserts(rpm);
@@ -3042,7 +3042,7 @@ static int intel_runtime_resume(struct device *kdev)
 	 * No point of rolling back things in case of an error, as the best
 	 * we can do is to hope that things will still work (and disable RPM).
 	 */
-	i915_gem_init_swizzling(dev_priv);
+	intel_gt_init_swizzling(&dev_priv->gt);
 	i915_gem_restore_fences(dev_priv);
 
 	/*
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 714963d7b3fe..2c4c8ee4133b 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2538,7 +2538,6 @@ bool i915_gem_unset_wedged(struct drm_i915_private *dev_priv);
 void i915_gem_init_mmio(struct drm_i915_private *i915);
 int __must_check i915_gem_init(struct drm_i915_private *dev_priv);
 int __must_check i915_gem_init_hw(struct drm_i915_private *dev_priv);
-void i915_gem_init_swizzling(struct drm_i915_private *dev_priv);
 void i915_gem_fini_hw(struct drm_i915_private *dev_priv);
 void i915_gem_fini(struct drm_i915_private *dev_priv);
 int i915_gem_wait_for_idle(struct drm_i915_private *dev_priv,
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 1db2becbec64..dcdff5c63b41 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1201,29 +1201,6 @@ void i915_gem_sanitize(struct drm_i915_private *i915)
 	intel_runtime_pm_put(&i915->runtime_pm, wakeref);
 }
 
-void i915_gem_init_swizzling(struct drm_i915_private *dev_priv)
-{
-	if (INTEL_GEN(dev_priv) < 5 ||
-	    dev_priv->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_NONE)
-		return;
-
-	I915_WRITE(DISP_ARB_CTL, I915_READ(DISP_ARB_CTL) |
-				 DISP_TILE_SURFACE_SWIZZLING);
-
-	if (IS_GEN(dev_priv, 5))
-		return;
-
-	I915_WRITE(TILECTL, I915_READ(TILECTL) | TILECTL_SWZCTL);
-	if (IS_GEN(dev_priv, 6))
-		I915_WRITE(ARB_MODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_SNB));
-	else if (IS_GEN(dev_priv, 7))
-		I915_WRITE(ARB_MODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_IVB));
-	else if (IS_GEN(dev_priv, 8))
-		I915_WRITE(GAMTARBMODE, _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_BDW));
-	else
-		BUG();
-}
-
 static void init_unused_ring(struct drm_i915_private *dev_priv, u32 base)
 {
 	I915_WRITE(RING_CTL(base), 0);
@@ -1270,7 +1247,7 @@ int i915_gem_init_hw(struct drm_i915_private *dev_priv)
 	/* ...and determine whether they are sticking. */
 	intel_gt_verify_workarounds(dev_priv, "init");
 
-	i915_gem_init_swizzling(dev_priv);
+	intel_gt_init_swizzling(&dev_priv->gt);
 
 	/*
 	 * At least 830 can leave some of the unused rings
diff --git a/drivers/gpu/drm/i915/i915_gem_fence_reg.c b/drivers/gpu/drm/i915/i915_gem_fence_reg.c
index 0bf53ac1c835..dd09790c420d 100644
--- a/drivers/gpu/drm/i915/i915_gem_fence_reg.c
+++ b/drivers/gpu/drm/i915/i915_gem_fence_reg.c
@@ -834,3 +834,40 @@ void i915_ggtt_init_fences(struct i915_ggtt *ggtt)
 
 	i915_gem_restore_fences(i915);
 }
+
+void intel_gt_init_swizzling(struct intel_gt *gt)
+{
+	struct drm_i915_private *i915 = gt->i915;
+	struct intel_uncore *uncore = gt->uncore;
+
+	if (INTEL_GEN(i915) < 5 ||
+	    i915->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_NONE)
+		return;
+
+	intel_uncore_write(uncore,
+			   DISP_ARB_CTL,
+			   intel_uncore_read(uncore, DISP_ARB_CTL) |
+			   DISP_TILE_SURFACE_SWIZZLING);
+
+	if (IS_GEN(i915, 5))
+		return;
+
+	intel_uncore_write(uncore,
+			   TILECTL,
+			   intel_uncore_read(uncore, TILECTL) | TILECTL_SWZCTL);
+
+	if (IS_GEN(i915, 6))
+		intel_uncore_write(uncore,
+				   ARB_MODE,
+				   _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_SNB));
+	else if (IS_GEN(i915, 7))
+		intel_uncore_write(uncore,
+				   ARB_MODE,
+				   _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_IVB));
+	else if (IS_GEN(i915, 8))
+		intel_uncore_write(uncore,
+				   GAMTARBMODE,
+				   _MASKED_BIT_ENABLE(ARB_MODE_SWIZZLE_BDW));
+	else
+		MISSING_CASE(INTEL_GEN(i915));
+}
diff --git a/drivers/gpu/drm/i915/i915_gem_fence_reg.h b/drivers/gpu/drm/i915/i915_gem_fence_reg.h
index d2da98828179..37e4f104f7c0 100644
--- a/drivers/gpu/drm/i915/i915_gem_fence_reg.h
+++ b/drivers/gpu/drm/i915/i915_gem_fence_reg.h
@@ -32,6 +32,7 @@ struct drm_i915_gem_object;
 struct drm_i915_private;
 struct i915_ggtt;
 struct i915_vma;
+struct intel_gt;
 struct sg_table;
 
 #define I965_FENCE_PAGE 4096UL
@@ -66,4 +67,6 @@ void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj,
 
 void i915_ggtt_init_fences(struct i915_ggtt *ggtt);
 
+void intel_gt_init_swizzling(struct intel_gt *gt);
+
 #endif
-- 
2.20.1

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[RFC 08/33] drm/i915: Use intel_uncore_rmw in intel_gt_init_swizzling

[Tvrtko Ursulin]

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

Two easy opportunities to compact the code by using the existing helper.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Suggested-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/i915_gem_fence_reg.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_fence_reg.c b/drivers/gpu/drm/i915/i915_gem_fence_reg.c
index dd09790c420d..bcac359ec661 100644
--- a/drivers/gpu/drm/i915/i915_gem_fence_reg.c
+++ b/drivers/gpu/drm/i915/i915_gem_fence_reg.c
@@ -844,17 +844,12 @@ void intel_gt_init_swizzling(struct intel_gt *gt)
 	    i915->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_NONE)
 		return;
 
-	intel_uncore_write(uncore,
-			   DISP_ARB_CTL,
-			   intel_uncore_read(uncore, DISP_ARB_CTL) |
-			   DISP_TILE_SURFACE_SWIZZLING);
+	intel_uncore_rmw(uncore, DISP_ARB_CTL, 0, DISP_TILE_SURFACE_SWIZZLING);
 
 	if (IS_GEN(i915, 5))
 		return;
 
-	intel_uncore_write(uncore,
-			   TILECTL,
-			   intel_uncore_read(uncore, TILECTL) | TILECTL_SWZCTL);
+	intel_uncore_rmw(uncore, TILECTL, 0, TILECTL_SWZCTL);
 
 	if (IS_GEN(i915, 6))
 		intel_uncore_write(uncore,
-- 
2.20.1

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[RFC 09/33] drm/i915: Convert init_unused_rings to intel_gt

[Tvrtko Ursulin]

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

More removal of implicit dev_priv from using old mmio accessors.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_gem.c | 42 ++++++++++++++++++---------------
 1 file changed, 23 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index dcdff5c63b41..6ab839fff869 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1201,28 +1201,32 @@ void i915_gem_sanitize(struct drm_i915_private *i915)
 	intel_runtime_pm_put(&i915->runtime_pm, wakeref);
 }
 
-static void init_unused_ring(struct drm_i915_private *dev_priv, u32 base)
+static void init_unused_ring(struct intel_gt *gt, u32 base)
 {
-	I915_WRITE(RING_CTL(base), 0);
-	I915_WRITE(RING_HEAD(base), 0);
-	I915_WRITE(RING_TAIL(base), 0);
-	I915_WRITE(RING_START(base), 0);
+	struct intel_uncore *uncore = gt->uncore;
+
+	intel_uncore_write(uncore, RING_CTL(base), 0);
+	intel_uncore_write(uncore, RING_HEAD(base), 0);
+	intel_uncore_write(uncore, RING_TAIL(base), 0);
+	intel_uncore_write(uncore, RING_START(base), 0);
 }
 
-static void init_unused_rings(struct drm_i915_private *dev_priv)
+static void init_unused_rings(struct intel_gt *gt)
 {
-	if (IS_I830(dev_priv)) {
-		init_unused_ring(dev_priv, PRB1_BASE);
-		init_unused_ring(dev_priv, SRB0_BASE);
-		init_unused_ring(dev_priv, SRB1_BASE);
-		init_unused_ring(dev_priv, SRB2_BASE);
-		init_unused_ring(dev_priv, SRB3_BASE);
-	} else if (IS_GEN(dev_priv, 2)) {
-		init_unused_ring(dev_priv, SRB0_BASE);
-		init_unused_ring(dev_priv, SRB1_BASE);
-	} else if (IS_GEN(dev_priv, 3)) {
-		init_unused_ring(dev_priv, PRB1_BASE);
-		init_unused_ring(dev_priv, PRB2_BASE);
+	struct drm_i915_private *i915 = gt->i915;
+
+	if (IS_I830(i915)) {
+		init_unused_ring(gt, PRB1_BASE);
+		init_unused_ring(gt, SRB0_BASE);
+		init_unused_ring(gt, SRB1_BASE);
+		init_unused_ring(gt, SRB2_BASE);
+		init_unused_ring(gt, SRB3_BASE);
+	} else if (IS_GEN(i915, 2)) {
+		init_unused_ring(gt, SRB0_BASE);
+		init_unused_ring(gt, SRB1_BASE);
+	} else if (IS_GEN(i915, 3)) {
+		init_unused_ring(gt, PRB1_BASE);
+		init_unused_ring(gt, PRB2_BASE);
 	}
 }
 
@@ -1255,7 +1259,7 @@ int i915_gem_init_hw(struct drm_i915_private *dev_priv)
 	 * will prevent c3 entry. Makes sure all unused rings
 	 * are totally idle.
 	 */
-	init_unused_rings(dev_priv);
+	init_unused_rings(&dev_priv->gt);
 
 	BUG_ON(!dev_priv->kernel_context);
 	ret = i915_terminally_wedged(dev_priv);
-- 
2.20.1

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[RFC 10/33] drm/i915: Convert gt workarounds to intel_gt

[Tvrtko Ursulin]

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

More conversion of i915_gem_init_hw to uncore.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/intel_workarounds.c | 10 +++++-----
 drivers/gpu/drm/i915/gt/intel_workarounds.h |  6 +++---
 drivers/gpu/drm/i915/i915_gem.c             |  4 ++--
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 165b0a45e009..0b3308e39a17 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -6,6 +6,7 @@
 
 #include "i915_drv.h"
 #include "intel_context.h"
+#include "intel_gt.h"
 #include "intel_workarounds.h"
 
 /**
@@ -984,9 +985,9 @@ wa_list_apply(struct intel_uncore *uncore, const struct i915_wa_list *wal)
 	spin_unlock_irqrestore(&uncore->lock, flags);
 }
 
-void intel_gt_apply_workarounds(struct drm_i915_private *i915)
+void intel_gt_apply_workarounds(struct intel_gt *gt)
 {
-	wa_list_apply(&i915->uncore, &i915->gt_wa_list);
+	wa_list_apply(gt->uncore, &gt->i915->gt_wa_list);
 }
 
 static bool wa_list_verify(struct intel_uncore *uncore,
@@ -1005,10 +1006,9 @@ static bool wa_list_verify(struct intel_uncore *uncore,
 	return ok;
 }
 
-bool intel_gt_verify_workarounds(struct drm_i915_private *i915,
-				 const char *from)
+bool intel_gt_verify_workarounds(struct intel_gt *gt, const char *from)
 {
-	return wa_list_verify(&i915->uncore, &i915->gt_wa_list, from);
+	return wa_list_verify(gt->uncore, &gt->i915->gt_wa_list, from);
 }
 
 static void
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.h b/drivers/gpu/drm/i915/gt/intel_workarounds.h
index 3761a6ee58bb..8c9c769c2204 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.h
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.h
@@ -14,6 +14,7 @@
 struct drm_i915_private;
 struct i915_request;
 struct intel_engine_cs;
+struct intel_gt;
 
 static inline void intel_wa_list_free(struct i915_wa_list *wal)
 {
@@ -25,9 +26,8 @@ void intel_engine_init_ctx_wa(struct intel_engine_cs *engine);
 int intel_engine_emit_ctx_wa(struct i915_request *rq);
 
 void intel_gt_init_workarounds(struct drm_i915_private *i915);
-void intel_gt_apply_workarounds(struct drm_i915_private *i915);
-bool intel_gt_verify_workarounds(struct drm_i915_private *i915,
-				 const char *from);
+void intel_gt_apply_workarounds(struct intel_gt *gt);
+bool intel_gt_verify_workarounds(struct intel_gt *gt, const char *from);
 
 void intel_engine_init_whitelist(struct intel_engine_cs *engine);
 void intel_engine_apply_whitelist(struct intel_engine_cs *engine);
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 6ab839fff869..9de1a2518866 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1247,9 +1247,9 @@ int i915_gem_init_hw(struct drm_i915_private *dev_priv)
 			   LOWER_SLICE_ENABLED : LOWER_SLICE_DISABLED);
 
 	/* Apply the GT workarounds... */
-	intel_gt_apply_workarounds(dev_priv);
+	intel_gt_apply_workarounds(&dev_priv->gt);
 	/* ...and determine whether they are sticking. */
-	intel_gt_verify_workarounds(dev_priv, "init");
+	intel_gt_verify_workarounds(&dev_priv->gt, "init");
 
 	intel_gt_init_swizzling(&dev_priv->gt);
 
-- 
2.20.1

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[RFC 11/33] drm/i915: Store backpointer to intel_gt in the engine

[Tvrtko Ursulin]

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

It will come useful in the next patch.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/intel_engine_cs.c    | 1 +
 drivers/gpu/drm/i915/gt/intel_engine_types.h | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 80ff475f8d53..29ec9aaaf1c7 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -316,6 +316,7 @@ intel_engine_setup(struct drm_i915_private *dev_priv,
 	engine->id = id;
 	engine->mask = BIT(id);
 	engine->i915 = dev_priv;
+	engine->gt = &dev_priv->gt;
 	engine->uncore = &dev_priv->uncore;
 	__sprint_engine_name(engine->name, info);
 	engine->hw_id = engine->guc_id = info->hw_id;
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h
index b2faca8e5dec..7a3f1f43567d 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
@@ -35,6 +35,7 @@ struct drm_i915_reg_table;
 struct i915_gem_context;
 struct i915_request;
 struct i915_sched_attr;
+struct intel_gt;
 struct intel_uncore;
 
 typedef u8 intel_engine_mask_t;
@@ -267,6 +268,7 @@ struct intel_engine_execlists {
 
 struct intel_engine_cs {
 	struct drm_i915_private *i915;
+	struct intel_gt *gt;
 	struct intel_uncore *uncore;
 	char name[INTEL_ENGINE_CS_MAX_NAME];
 
-- 
2.20.1

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[RFC 12/33] drm/i915: Convert intel_mocs_init_l3cc_table to intel_gt

[Tvrtko Ursulin]

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

More removal of implicit dev_priv from using old mmio accessors.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/intel_mocs.c | 52 +++++++++++++++++-----------
 drivers/gpu/drm/i915/gt/intel_mocs.h |  3 +-
 drivers/gpu/drm/i915/i915_gem.c      |  2 +-
 3 files changed, 35 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_mocs.c b/drivers/gpu/drm/i915/gt/intel_mocs.c
index 1f9db50b1869..d08b8f47269b 100644
--- a/drivers/gpu/drm/i915/gt/intel_mocs.c
+++ b/drivers/gpu/drm/i915/gt/intel_mocs.c
@@ -23,6 +23,7 @@
 #include "i915_drv.h"
 
 #include "intel_engine.h"
+#include "intel_gt.h"
 #include "intel_mocs.h"
 #include "intel_lrc.h"
 
@@ -247,7 +248,7 @@ static const struct drm_i915_mocs_entry icelake_mocs_table[] = {
 
 /**
  * get_mocs_settings()
- * @dev_priv:	i915 device.
+ * @gt:		gt device
  * @table:      Output table that will be made to point at appropriate
  *	      MOCS values for the device.
  *
@@ -257,33 +258,34 @@ static const struct drm_i915_mocs_entry icelake_mocs_table[] = {
  *
  * Return: true if there are applicable MOCS settings for the device.
  */
-static bool get_mocs_settings(struct drm_i915_private *dev_priv,
+static bool get_mocs_settings(struct intel_gt *gt,
 			      struct drm_i915_mocs_table *table)
 {
+	struct drm_i915_private *i915 = gt->i915;
 	bool result = false;
 
-	if (INTEL_GEN(dev_priv) >= 11) {
+	if (INTEL_GEN(i915) >= 11) {
 		table->size  = ARRAY_SIZE(icelake_mocs_table);
 		table->table = icelake_mocs_table;
 		table->n_entries = GEN11_NUM_MOCS_ENTRIES;
 		result = true;
-	} else if (IS_GEN9_BC(dev_priv) || IS_CANNONLAKE(dev_priv)) {
+	} else if (IS_GEN9_BC(i915) || IS_CANNONLAKE(i915)) {
 		table->size  = ARRAY_SIZE(skylake_mocs_table);
 		table->n_entries = GEN9_NUM_MOCS_ENTRIES;
 		table->table = skylake_mocs_table;
 		result = true;
-	} else if (IS_GEN9_LP(dev_priv)) {
+	} else if (IS_GEN9_LP(i915)) {
 		table->size  = ARRAY_SIZE(broxton_mocs_table);
 		table->n_entries = GEN9_NUM_MOCS_ENTRIES;
 		table->table = broxton_mocs_table;
 		result = true;
 	} else {
-		WARN_ONCE(INTEL_GEN(dev_priv) >= 9,
+		WARN_ONCE(INTEL_GEN(i915) >= 9,
 			  "Platform that should have a MOCS table does not.\n");
 	}
 
 	/* WaDisableSkipCaching:skl,bxt,kbl,glk */
-	if (IS_GEN(dev_priv, 9)) {
+	if (IS_GEN(i915, 9)) {
 		int i;
 
 		for (i = 0; i < table->size; i++)
@@ -338,12 +340,13 @@ static u32 get_entry_control(const struct drm_i915_mocs_table *table,
  */
 void intel_mocs_init_engine(struct intel_engine_cs *engine)
 {
-	struct drm_i915_private *dev_priv = engine->i915;
+	struct intel_gt *gt = engine->gt;
+	struct intel_uncore *uncore = gt->uncore;
 	struct drm_i915_mocs_table table;
 	unsigned int index;
 	u32 unused_value;
 
-	if (!get_mocs_settings(dev_priv, &table))
+	if (!get_mocs_settings(gt, &table))
 		return;
 
 	/* Set unused values to PTE */
@@ -352,12 +355,16 @@ void intel_mocs_init_engine(struct intel_engine_cs *engine)
 	for (index = 0; index < table.size; index++) {
 		u32 value = get_entry_control(&table, index);
 
-		I915_WRITE(mocs_register(engine->id, index), value);
+		intel_uncore_write(uncore,
+				   mocs_register(engine->id, index),
+				   value);
 	}
 
 	/* All remaining entries are also unused */
 	for (; index < table.n_entries; index++)
-		I915_WRITE(mocs_register(engine->id, index), unused_value);
+		intel_uncore_write(uncore,
+				   mocs_register(engine->id, index),
+				   unused_value);
 }
 
 /**
@@ -502,13 +509,14 @@ static int emit_mocs_l3cc_table(struct i915_request *rq,
  *
  * Return: Nothing.
  */
-void intel_mocs_init_l3cc_table(struct drm_i915_private *dev_priv)
+void intel_mocs_init_l3cc_table(struct intel_gt *gt)
 {
+	struct intel_uncore *uncore = gt->uncore;
 	struct drm_i915_mocs_table table;
 	unsigned int i;
 	u16 unused_value;
 
-	if (!get_mocs_settings(dev_priv, &table))
+	if (!get_mocs_settings(gt, &table))
 		return;
 
 	/* Set unused values to PTE */
@@ -518,23 +526,27 @@ void intel_mocs_init_l3cc_table(struct drm_i915_private *dev_priv)
 		u16 low = get_entry_l3cc(&table, 2 * i);
 		u16 high = get_entry_l3cc(&table, 2 * i + 1);
 
-		I915_WRITE(GEN9_LNCFCMOCS(i),
-			   l3cc_combine(&table, low, high));
+		intel_uncore_write(uncore,
+				   GEN9_LNCFCMOCS(i),
+				   l3cc_combine(&table, low, high));
 	}
 
 	/* Odd table size - 1 left over */
 	if (table.size & 0x01) {
 		u16 low = get_entry_l3cc(&table, 2 * i);
 
-		I915_WRITE(GEN9_LNCFCMOCS(i),
-			   l3cc_combine(&table, low, unused_value));
+		intel_uncore_write(uncore,
+				   GEN9_LNCFCMOCS(i),
+				   l3cc_combine(&table, low, unused_value));
 		i++;
 	}
 
 	/* All remaining entries are also unused */
 	for (; i < table.n_entries / 2; i++)
-		I915_WRITE(GEN9_LNCFCMOCS(i),
-			   l3cc_combine(&table, unused_value, unused_value));
+		intel_uncore_write(uncore,
+				   GEN9_LNCFCMOCS(i),
+				   l3cc_combine(&table, unused_value,
+						unused_value));
 }
 
 /**
@@ -558,7 +570,7 @@ int intel_rcs_context_init_mocs(struct i915_request *rq)
 	struct drm_i915_mocs_table t;
 	int ret;
 
-	if (get_mocs_settings(rq->i915, &t)) {
+	if (get_mocs_settings(rq->engine->gt, &t)) {
 		/* Program the RCS control registers */
 		ret = emit_mocs_control_table(rq, &t);
 		if (ret)
diff --git a/drivers/gpu/drm/i915/gt/intel_mocs.h b/drivers/gpu/drm/i915/gt/intel_mocs.h
index 0913704a1af2..8b9813e6f9ac 100644
--- a/drivers/gpu/drm/i915/gt/intel_mocs.h
+++ b/drivers/gpu/drm/i915/gt/intel_mocs.h
@@ -52,9 +52,10 @@
 struct drm_i915_private;
 struct i915_request;
 struct intel_engine_cs;
+struct intel_gt;
 
 int intel_rcs_context_init_mocs(struct i915_request *rq);
-void intel_mocs_init_l3cc_table(struct drm_i915_private *dev_priv);
+void intel_mocs_init_l3cc_table(struct intel_gt *gt);
 void intel_mocs_init_engine(struct intel_engine_cs *engine);
 
 #endif
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 9de1a2518866..862aed92a3b9 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1285,7 +1285,7 @@ int i915_gem_init_hw(struct drm_i915_private *dev_priv)
 		goto out;
 	}
 
-	intel_mocs_init_l3cc_table(dev_priv);
+	intel_mocs_init_l3cc_table(&dev_priv->gt);
 
 	/* Only when the HW is re-initialised, can we replay the requests */
 	ret = intel_engines_resume(dev_priv);
-- 
2.20.1

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[RFC 13/33] drm/i915: Convert i915_ppgtt_init_hw to intel_gt

[Tvrtko Ursulin]

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

More removal of implicit dev_priv from using old mmio accessors.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_gem.c     |   2 +-
 drivers/gpu/drm/i915/i915_gem_gtt.c | 102 ++++++++++++++++++----------
 drivers/gpu/drm/i915/i915_gem_gtt.h |   3 +-
 3 files changed, 68 insertions(+), 39 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 862aed92a3b9..7fc1e3c6c951 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1266,7 +1266,7 @@ int i915_gem_init_hw(struct drm_i915_private *dev_priv)
 	if (ret)
 		goto out;
 
-	ret = i915_ppgtt_init_hw(dev_priv);
+	ret = i915_ppgtt_init_hw(&dev_priv->gt);
 	if (ret) {
 		DRM_ERROR("Enabling PPGTT failed (%d)\n", ret);
 		goto out;
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 125b8dc325fb..b9f522a572b4 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -43,6 +43,7 @@
 #include "i915_vgpu.h"
 #include "intel_drv.h"
 #include "intel_frontbuffer.h"
+#include "gt/intel_gt.h"
 
 #define I915_GFP_ALLOW_FAIL (GFP_KERNEL | __GFP_RETRY_MAYFAIL | __GFP_NOWARN)
 
@@ -1694,25 +1695,29 @@ static inline void gen6_write_pde(const struct gen6_ppgtt *ppgtt,
 		  ppgtt->pd_addr + pde);
 }
 
-static void gen7_ppgtt_enable(struct drm_i915_private *dev_priv)
+static void gen7_ppgtt_enable(struct intel_gt *gt)
 {
+	struct drm_i915_private *i915 = gt->i915;
+	struct intel_uncore *uncore = gt->uncore;
 	struct intel_engine_cs *engine;
 	u32 ecochk, ecobits;
 	enum intel_engine_id id;
 
-	ecobits = I915_READ(GAC_ECO_BITS);
-	I915_WRITE(GAC_ECO_BITS, ecobits | ECOBITS_PPGTT_CACHE64B);
+	ecobits = intel_uncore_read(uncore, GAC_ECO_BITS);
+	intel_uncore_write(uncore,
+			   GAC_ECO_BITS,
+			   ecobits | ECOBITS_PPGTT_CACHE64B);
 
-	ecochk = I915_READ(GAM_ECOCHK);
-	if (IS_HASWELL(dev_priv)) {
+	ecochk = intel_uncore_read(uncore, GAM_ECOCHK);
+	if (IS_HASWELL(i915)) {
 		ecochk |= ECOCHK_PPGTT_WB_HSW;
 	} else {
 		ecochk |= ECOCHK_PPGTT_LLC_IVB;
 		ecochk &= ~ECOCHK_PPGTT_GFDT_IVB;
 	}
-	I915_WRITE(GAM_ECOCHK, ecochk);
+	intel_uncore_write(uncore, GAM_ECOCHK, ecochk);
 
-	for_each_engine(engine, dev_priv, id) {
+	for_each_engine(engine, i915, id) {
 		/* GFX_MODE is per-ring on gen7+ */
 		ENGINE_WRITE(engine,
 			     RING_MODE_GEN7,
@@ -1720,22 +1725,30 @@ static void gen7_ppgtt_enable(struct drm_i915_private *dev_priv)
 	}
 }
 
-static void gen6_ppgtt_enable(struct drm_i915_private *dev_priv)
+static void gen6_ppgtt_enable(struct intel_gt *gt)
 {
+	struct intel_uncore *uncore = gt->uncore;
 	u32 ecochk, gab_ctl, ecobits;
 
-	ecobits = I915_READ(GAC_ECO_BITS);
-	I915_WRITE(GAC_ECO_BITS, ecobits | ECOBITS_SNB_BIT |
-		   ECOBITS_PPGTT_CACHE64B);
+	ecobits = intel_uncore_read(uncore, GAC_ECO_BITS);
+	intel_uncore_write(uncore,
+			   GAC_ECO_BITS,
+			   ecobits | ECOBITS_SNB_BIT | ECOBITS_PPGTT_CACHE64B);
 
-	gab_ctl = I915_READ(GAB_CTL);
-	I915_WRITE(GAB_CTL, gab_ctl | GAB_CTL_CONT_AFTER_PAGEFAULT);
+	gab_ctl = intel_uncore_read(uncore, GAB_CTL);
+	intel_uncore_write(uncore,
+			   GAB_CTL,
+			   gab_ctl | GAB_CTL_CONT_AFTER_PAGEFAULT);
 
-	ecochk = I915_READ(GAM_ECOCHK);
-	I915_WRITE(GAM_ECOCHK, ecochk | ECOCHK_SNB_BIT | ECOCHK_PPGTT_CACHE64B);
+	ecochk = intel_uncore_read(uncore, GAM_ECOCHK);
+	intel_uncore_write(uncore,
+			   GAM_ECOCHK,
+			   ecochk | ECOCHK_SNB_BIT | ECOCHK_PPGTT_CACHE64B);
 
-	if (HAS_PPGTT(dev_priv)) /* may be disabled for VT-d */
-		I915_WRITE(GFX_MODE, _MASKED_BIT_ENABLE(GFX_PPGTT_ENABLE));
+	if (HAS_PPGTT(uncore_to_i915(uncore))) /* may be disabled for VT-d */
+		intel_uncore_write(uncore,
+				   GFX_MODE,
+				   _MASKED_BIT_ENABLE(GFX_PPGTT_ENABLE));
 }
 
 /* PPGTT support for Sandybdrige/Gen6 and later */
@@ -2187,21 +2200,32 @@ static struct i915_ppgtt *gen6_ppgtt_create(struct drm_i915_private *i915)
 	return ERR_PTR(err);
 }
 
-static void gtt_write_workarounds(struct drm_i915_private *dev_priv)
+static void gtt_write_workarounds(struct intel_gt *gt)
 {
+	struct drm_i915_private *i915 = gt->i915;
+	struct intel_uncore *uncore = gt->uncore;
+
 	/* This function is for gtt related workarounds. This function is
 	 * called on driver load and after a GPU reset, so you can place
 	 * workarounds here even if they get overwritten by GPU reset.
 	 */
 	/* WaIncreaseDefaultTLBEntries:chv,bdw,skl,bxt,kbl,glk,cfl,cnl,icl */
-	if (IS_BROADWELL(dev_priv))
-		I915_WRITE(GEN8_L3_LRA_1_GPGPU, GEN8_L3_LRA_1_GPGPU_DEFAULT_VALUE_BDW);
-	else if (IS_CHERRYVIEW(dev_priv))
-		I915_WRITE(GEN8_L3_LRA_1_GPGPU, GEN8_L3_LRA_1_GPGPU_DEFAULT_VALUE_CHV);
-	else if (IS_GEN9_LP(dev_priv))
-		I915_WRITE(GEN8_L3_LRA_1_GPGPU, GEN9_L3_LRA_1_GPGPU_DEFAULT_VALUE_BXT);
-	else if (INTEL_GEN(dev_priv) >= 9)
-		I915_WRITE(GEN8_L3_LRA_1_GPGPU, GEN9_L3_LRA_1_GPGPU_DEFAULT_VALUE_SKL);
+	if (IS_BROADWELL(i915))
+		intel_uncore_write(uncore,
+				   GEN8_L3_LRA_1_GPGPU,
+				   GEN8_L3_LRA_1_GPGPU_DEFAULT_VALUE_BDW);
+	else if (IS_CHERRYVIEW(i915))
+		intel_uncore_write(uncore,
+				   GEN8_L3_LRA_1_GPGPU,
+				   GEN8_L3_LRA_1_GPGPU_DEFAULT_VALUE_CHV);
+	else if (IS_GEN9_LP(i915))
+		intel_uncore_write(uncore,
+				   GEN8_L3_LRA_1_GPGPU,
+				   GEN9_L3_LRA_1_GPGPU_DEFAULT_VALUE_BXT);
+	else if (INTEL_GEN(i915) >= 9)
+		intel_uncore_write(uncore,
+				   GEN8_L3_LRA_1_GPGPU,
+				   GEN9_L3_LRA_1_GPGPU_DEFAULT_VALUE_SKL);
 
 	/*
 	 * To support 64K PTEs we need to first enable the use of the
@@ -2214,21 +2238,25 @@ static void gtt_write_workarounds(struct drm_i915_private *dev_priv)
 	 * 32K pages, but we don't currently have any support for it in our
 	 * driver.
 	 */
-	if (HAS_PAGE_SIZES(dev_priv, I915_GTT_PAGE_SIZE_64K) &&
-	    INTEL_GEN(dev_priv) <= 10)
-		I915_WRITE(GEN8_GAMW_ECO_DEV_RW_IA,
-			   I915_READ(GEN8_GAMW_ECO_DEV_RW_IA) |
-			   GAMW_ECO_ENABLE_64K_IPS_FIELD);
+	if (HAS_PAGE_SIZES(i915, I915_GTT_PAGE_SIZE_64K) &&
+	    INTEL_GEN(i915) <= 10)
+		intel_uncore_write(uncore,
+				   GEN8_GAMW_ECO_DEV_RW_IA,
+				   intel_uncore_read(uncore,
+						     GEN8_GAMW_ECO_DEV_RW_IA) |
+				   GAMW_ECO_ENABLE_64K_IPS_FIELD);
 }
 
-int i915_ppgtt_init_hw(struct drm_i915_private *dev_priv)
+int i915_ppgtt_init_hw(struct intel_gt *gt)
 {
-	gtt_write_workarounds(dev_priv);
+	struct drm_i915_private *i915 = gt->i915;
+
+	gtt_write_workarounds(gt);
 
-	if (IS_GEN(dev_priv, 6))
-		gen6_ppgtt_enable(dev_priv);
-	else if (IS_GEN(dev_priv, 7))
-		gen7_ppgtt_enable(dev_priv);
+	if (IS_GEN(i915, 6))
+		gen6_ppgtt_enable(gt);
+	else if (IS_GEN(i915, 7))
+		gen7_ppgtt_enable(gt);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 63fa357c69de..f8c06288be65 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -64,6 +64,7 @@
 struct drm_i915_file_private;
 struct drm_i915_gem_object;
 struct i915_vma;
+struct intel_gt;
 
 typedef u32 gen6_pte_t;
 typedef u64 gen8_pte_t;
@@ -647,7 +648,7 @@ void i915_ggtt_disable_guc(struct drm_i915_private *i915);
 int i915_gem_init_ggtt(struct drm_i915_private *dev_priv);
 void i915_ggtt_cleanup_hw(struct drm_i915_private *dev_priv);
 
-int i915_ppgtt_init_hw(struct drm_i915_private *dev_priv);
+int i915_ppgtt_init_hw(struct intel_gt *gt);
 
 struct i915_ppgtt *i915_ppgtt_create(struct drm_i915_private *dev_priv);
 
-- 
2.20.1

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[RFC 14/33] drm/i915: Consolidate some open coded mmio rmw

[Tvrtko Ursulin]

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

Replace some gen6/7 open coded rmw with intel_uncore_rmw.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 41 +++++++++++++----------------
 1 file changed, 18 insertions(+), 23 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index b9f522a572b4..c0d2f6cbb63a 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1700,13 +1700,10 @@ static void gen7_ppgtt_enable(struct intel_gt *gt)
 	struct drm_i915_private *i915 = gt->i915;
 	struct intel_uncore *uncore = gt->uncore;
 	struct intel_engine_cs *engine;
-	u32 ecochk, ecobits;
 	enum intel_engine_id id;
+	u32 ecochk;
 
-	ecobits = intel_uncore_read(uncore, GAC_ECO_BITS);
-	intel_uncore_write(uncore,
-			   GAC_ECO_BITS,
-			   ecobits | ECOBITS_PPGTT_CACHE64B);
+	intel_uncore_rmw(uncore, GAC_ECO_BITS, 0, ECOBITS_PPGTT_CACHE64B);
 
 	ecochk = intel_uncore_read(uncore, GAM_ECOCHK);
 	if (IS_HASWELL(i915)) {
@@ -1728,22 +1725,21 @@ static void gen7_ppgtt_enable(struct intel_gt *gt)
 static void gen6_ppgtt_enable(struct intel_gt *gt)
 {
 	struct intel_uncore *uncore = gt->uncore;
-	u32 ecochk, gab_ctl, ecobits;
 
-	ecobits = intel_uncore_read(uncore, GAC_ECO_BITS);
-	intel_uncore_write(uncore,
-			   GAC_ECO_BITS,
-			   ecobits | ECOBITS_SNB_BIT | ECOBITS_PPGTT_CACHE64B);
+	intel_uncore_rmw(uncore,
+			 GAC_ECO_BITS,
+			 0,
+			 ECOBITS_SNB_BIT | ECOBITS_PPGTT_CACHE64B);
 
-	gab_ctl = intel_uncore_read(uncore, GAB_CTL);
-	intel_uncore_write(uncore,
-			   GAB_CTL,
-			   gab_ctl | GAB_CTL_CONT_AFTER_PAGEFAULT);
+	intel_uncore_rmw(uncore,
+			 GAB_CTL,
+			 0,
+			 GAB_CTL_CONT_AFTER_PAGEFAULT);
 
-	ecochk = intel_uncore_read(uncore, GAM_ECOCHK);
-	intel_uncore_write(uncore,
-			   GAM_ECOCHK,
-			   ecochk | ECOCHK_SNB_BIT | ECOCHK_PPGTT_CACHE64B);
+	intel_uncore_rmw(uncore,
+			 GAM_ECOCHK,
+			 0,
+			 ECOCHK_SNB_BIT | ECOCHK_PPGTT_CACHE64B);
 
 	if (HAS_PPGTT(uncore_to_i915(uncore))) /* may be disabled for VT-d */
 		intel_uncore_write(uncore,
@@ -2240,11 +2236,10 @@ static void gtt_write_workarounds(struct intel_gt *gt)
 	 */
 	if (HAS_PAGE_SIZES(i915, I915_GTT_PAGE_SIZE_64K) &&
 	    INTEL_GEN(i915) <= 10)
-		intel_uncore_write(uncore,
-				   GEN8_GAMW_ECO_DEV_RW_IA,
-				   intel_uncore_read(uncore,
-						     GEN8_GAMW_ECO_DEV_RW_IA) |
-				   GAMW_ECO_ENABLE_64K_IPS_FIELD);
+		intel_uncore_rmw(uncore,
+				 GEN8_GAMW_ECO_DEV_RW_IA,
+				 0,
+				 GAMW_ECO_ENABLE_64K_IPS_FIELD);
 }
 
 int i915_ppgtt_init_hw(struct intel_gt *gt)
-- 
2.20.1

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[RFC 15/33] drm/i915: Convert i915_gem_init_hw to intel_gt

[Tvrtko Ursulin]

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

More removal of implicit dev_priv from using old mmio accessors.

Actually the top level function remains but is split into a part which
writes to i915 and part which operates on intel_gt in order to initialize
the hardware.

GuC and engines are the only odd ones out remaining.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/i915_gem.c | 66 ++++++++++++++++++++-------------
 1 file changed, 40 insertions(+), 26 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 7fc1e3c6c951..4ab712844eae 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1230,28 +1230,32 @@ static void init_unused_rings(struct intel_gt *gt)
 	}
 }
 
-int i915_gem_init_hw(struct drm_i915_private *dev_priv)
+static int init_hw(struct intel_gt *gt)
 {
+	struct drm_i915_private *i915 = gt->i915;
+	struct intel_uncore *uncore = gt->uncore;
 	int ret;
 
-	dev_priv->gt.last_init_time = ktime_get();
+	gt->last_init_time = ktime_get();
 
 	/* Double layer security blanket, see i915_gem_init() */
-	intel_uncore_forcewake_get(&dev_priv->uncore, FORCEWAKE_ALL);
+	intel_uncore_forcewake_get(uncore, FORCEWAKE_ALL);
 
-	if (HAS_EDRAM(dev_priv) && INTEL_GEN(dev_priv) < 9)
-		I915_WRITE(HSW_IDICR, I915_READ(HSW_IDICR) | IDIHASHMSK(0xf));
+	if (HAS_EDRAM(i915) && INTEL_GEN(i915) < 9)
+		intel_uncore_rmw(uncore, HSW_IDICR, 0, IDIHASHMSK(0xf));
 
-	if (IS_HASWELL(dev_priv))
-		I915_WRITE(MI_PREDICATE_RESULT_2, IS_HSW_GT3(dev_priv) ?
-			   LOWER_SLICE_ENABLED : LOWER_SLICE_DISABLED);
+	if (IS_HASWELL(i915))
+		intel_uncore_write(uncore,
+				   MI_PREDICATE_RESULT_2,
+				   IS_HSW_GT3(i915) ?
+				   LOWER_SLICE_ENABLED : LOWER_SLICE_DISABLED);
 
 	/* Apply the GT workarounds... */
-	intel_gt_apply_workarounds(&dev_priv->gt);
+	intel_gt_apply_workarounds(gt);
 	/* ...and determine whether they are sticking. */
-	intel_gt_verify_workarounds(&dev_priv->gt, "init");
+	intel_gt_verify_workarounds(gt, "init");
 
-	intel_gt_init_swizzling(&dev_priv->gt);
+	intel_gt_init_swizzling(gt);
 
 	/*
 	 * At least 830 can leave some of the unused rings
@@ -1259,48 +1263,58 @@ int i915_gem_init_hw(struct drm_i915_private *dev_priv)
 	 * will prevent c3 entry. Makes sure all unused rings
 	 * are totally idle.
 	 */
-	init_unused_rings(&dev_priv->gt);
-
-	BUG_ON(!dev_priv->kernel_context);
-	ret = i915_terminally_wedged(dev_priv);
-	if (ret)
-		goto out;
+	init_unused_rings(gt);
 
-	ret = i915_ppgtt_init_hw(&dev_priv->gt);
+	ret = i915_ppgtt_init_hw(gt);
 	if (ret) {
 		DRM_ERROR("Enabling PPGTT failed (%d)\n", ret);
 		goto out;
 	}
 
-	ret = intel_wopcm_init_hw(&dev_priv->wopcm);
+	ret = intel_wopcm_init_hw(&i915->wopcm);
 	if (ret) {
 		DRM_ERROR("Enabling WOPCM failed (%d)\n", ret);
 		goto out;
 	}
 
 	/* We can't enable contexts until all firmware is loaded */
-	ret = intel_uc_init_hw(dev_priv);
+	ret = intel_uc_init_hw(i915);
 	if (ret) {
 		DRM_ERROR("Enabling uc failed (%d)\n", ret);
 		goto out;
 	}
 
-	intel_mocs_init_l3cc_table(&dev_priv->gt);
+	intel_mocs_init_l3cc_table(gt);
 
 	/* Only when the HW is re-initialised, can we replay the requests */
-	ret = intel_engines_resume(dev_priv);
+	ret = intel_engines_resume(i915);
 	if (ret)
 		goto cleanup_uc;
 
-	intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL);
+	intel_uncore_forcewake_put(uncore, FORCEWAKE_ALL);
 
-	intel_engines_set_scheduler_caps(dev_priv);
 	return 0;
 
 cleanup_uc:
-	intel_uc_fini_hw(dev_priv);
+	intel_uc_fini_hw(i915);
 out:
-	intel_uncore_forcewake_put(&dev_priv->uncore, FORCEWAKE_ALL);
+	intel_uncore_forcewake_put(uncore, FORCEWAKE_ALL);
+
+	return ret;
+}
+
+int i915_gem_init_hw(struct drm_i915_private *i915)
+{
+	int ret;
+
+	BUG_ON(!i915->kernel_context);
+	ret = i915_terminally_wedged(i915);
+	if (ret)
+		return ret;
+
+	ret = init_hw(&i915->gt);
+
+	intel_engines_set_scheduler_caps(i915);
 
 	return ret;
 }
-- 
2.20.1

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[RFC 16/33] drm/i915: Move intel_engines_resume into common init

[Tvrtko Ursulin]

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

Since this part still operates on i915 and not intel_gt, move it to the
common (top-level) function.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_gem.c | 29 ++++++++++++++++++++++-------
 1 file changed, 22 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 4ab712844eae..bbbf7a0af50c 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1286,17 +1286,10 @@ static int init_hw(struct intel_gt *gt)
 
 	intel_mocs_init_l3cc_table(gt);
 
-	/* Only when the HW is re-initialised, can we replay the requests */
-	ret = intel_engines_resume(i915);
-	if (ret)
-		goto cleanup_uc;
-
 	intel_uncore_forcewake_put(uncore, FORCEWAKE_ALL);
 
 	return 0;
 
-cleanup_uc:
-	intel_uc_fini_hw(i915);
 out:
 	intel_uncore_forcewake_put(uncore, FORCEWAKE_ALL);
 
@@ -1305,6 +1298,7 @@ static int init_hw(struct intel_gt *gt)
 
 int i915_gem_init_hw(struct drm_i915_private *i915)
 {
+	struct intel_uncore *uncore = &i915->uncore;
 	int ret;
 
 	BUG_ON(!i915->kernel_context);
@@ -1312,7 +1306,28 @@ int i915_gem_init_hw(struct drm_i915_private *i915)
 	if (ret)
 		return ret;
 
+	/* Double layer security blanket, see i915_gem_init() */
+	intel_uncore_forcewake_get(uncore, FORCEWAKE_ALL);
+
 	ret = init_hw(&i915->gt);
+	if (ret)
+		goto err_init;
+
+	/* Only when the HW is re-initialised, can we replay the requests */
+	ret = intel_engines_resume(i915);
+	if (ret)
+		goto err_engines;
+
+	intel_uncore_forcewake_put(uncore, FORCEWAKE_ALL);
+
+	intel_engines_set_scheduler_caps(i915);
+
+	return 0;
+
+err_engines:
+	intel_uc_fini_hw(i915);
+err_init:
+	intel_uncore_forcewake_put(uncore, FORCEWAKE_ALL);
 
 	intel_engines_set_scheduler_caps(i915);
 
-- 
2.20.1

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[RFC 17/33] drm/i915: Stop using I915_READ/WRITE in intel_wopcm_init_hw

[Tvrtko Ursulin]

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

More legacy mmio accessor removal. We pass in intel_gt explicitly allowing
code to use new intel_uncore_read/write helpers.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/i915_gem.c    |  2 +-
 drivers/gpu/drm/i915/intel_wopcm.c | 31 ++++++++++++++++--------------
 drivers/gpu/drm/i915/intel_wopcm.h |  4 +++-
 3 files changed, 21 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index bbbf7a0af50c..ac76ac781afe 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1271,7 +1271,7 @@ static int init_hw(struct intel_gt *gt)
 		goto out;
 	}
 
-	ret = intel_wopcm_init_hw(&i915->wopcm);
+	ret = intel_wopcm_init_hw(&i915->wopcm, gt);
 	if (ret) {
 		DRM_ERROR("Enabling WOPCM failed (%d)\n", ret);
 		goto out;
diff --git a/drivers/gpu/drm/i915/intel_wopcm.c b/drivers/gpu/drm/i915/intel_wopcm.c
index 7b4ba84b9fb8..931987e37241 100644
--- a/drivers/gpu/drm/i915/intel_wopcm.c
+++ b/drivers/gpu/drm/i915/intel_wopcm.c
@@ -225,17 +225,18 @@ int intel_wopcm_init(struct intel_wopcm *wopcm)
 	return 0;
 }
 
-static inline int write_and_verify(struct drm_i915_private *dev_priv,
-				   i915_reg_t reg, u32 val, u32 mask,
-				   u32 locked_bit)
+static int
+write_and_verify(struct intel_gt *gt,
+		 i915_reg_t reg, u32 val, u32 mask, u32 locked_bit)
 {
+	struct intel_uncore *uncore = gt->uncore;
 	u32 reg_val;
 
 	GEM_BUG_ON(val & ~mask);
 
-	I915_WRITE(reg, val);
+	intel_uncore_write(uncore, reg, val);
 
-	reg_val = I915_READ(reg);
+	reg_val = intel_uncore_read(uncore, reg);
 
 	return (reg_val & mask) != (val | locked_bit) ? -EIO : 0;
 }
@@ -250,29 +251,30 @@ static inline int write_and_verify(struct drm_i915_private *dev_priv,
  *
  * Return: 0 on success. -EIO if registers were locked with incorrect values.
  */
-int intel_wopcm_init_hw(struct intel_wopcm *wopcm)
+int intel_wopcm_init_hw(struct intel_wopcm *wopcm, struct intel_gt *gt)
 {
-	struct drm_i915_private *dev_priv = wopcm_to_i915(wopcm);
+	struct drm_i915_private *i915 = wopcm_to_i915(wopcm);
+	struct intel_uncore *uncore = gt->uncore;
 	u32 huc_agent;
 	u32 mask;
 	int err;
 
-	if (!USES_GUC(dev_priv))
+	if (!USES_GUC(i915))
 		return 0;
 
-	GEM_BUG_ON(!HAS_GUC(dev_priv));
+	GEM_BUG_ON(!HAS_GUC(i915));
 	GEM_BUG_ON(!wopcm->guc.size);
 	GEM_BUG_ON(!wopcm->guc.base);
 
-	err = write_and_verify(dev_priv, GUC_WOPCM_SIZE, wopcm->guc.size,
+	err = write_and_verify(gt, GUC_WOPCM_SIZE, wopcm->guc.size,
 			       GUC_WOPCM_SIZE_MASK | GUC_WOPCM_SIZE_LOCKED,
 			       GUC_WOPCM_SIZE_LOCKED);
 	if (err)
 		goto err_out;
 
-	huc_agent = USES_HUC(dev_priv) ? HUC_LOADING_AGENT_GUC : 0;
+	huc_agent = USES_HUC(i915) ? HUC_LOADING_AGENT_GUC : 0;
 	mask = GUC_WOPCM_OFFSET_MASK | GUC_WOPCM_OFFSET_VALID | huc_agent;
-	err = write_and_verify(dev_priv, DMA_GUC_WOPCM_OFFSET,
+	err = write_and_verify(gt, DMA_GUC_WOPCM_OFFSET,
 			       wopcm->guc.base | huc_agent, mask,
 			       GUC_WOPCM_OFFSET_VALID);
 	if (err)
@@ -283,8 +285,9 @@ int intel_wopcm_init_hw(struct intel_wopcm *wopcm)
 err_out:
 	DRM_ERROR("Failed to init WOPCM registers:\n");
 	DRM_ERROR("DMA_GUC_WOPCM_OFFSET=%#x\n",
-		  I915_READ(DMA_GUC_WOPCM_OFFSET));
-	DRM_ERROR("GUC_WOPCM_SIZE=%#x\n", I915_READ(GUC_WOPCM_SIZE));
+		  intel_uncore_read(uncore, DMA_GUC_WOPCM_OFFSET));
+	DRM_ERROR("GUC_WOPCM_SIZE=%#x\n",
+		  intel_uncore_read(uncore, GUC_WOPCM_SIZE));
 
 	return err;
 }
diff --git a/drivers/gpu/drm/i915/intel_wopcm.h b/drivers/gpu/drm/i915/intel_wopcm.h
index 114401971520..56aaed4d64ff 100644
--- a/drivers/gpu/drm/i915/intel_wopcm.h
+++ b/drivers/gpu/drm/i915/intel_wopcm.h
@@ -9,6 +9,8 @@
 
 #include <linux/types.h>
 
+struct intel_gt;
+
 /**
  * struct intel_wopcm - Overall WOPCM info and WOPCM regions.
  * @size: Size of overall WOPCM.
@@ -41,6 +43,6 @@ static inline u32 intel_wopcm_guc_size(struct intel_wopcm *wopcm)
 
 void intel_wopcm_init_early(struct intel_wopcm *wopcm);
 int intel_wopcm_init(struct intel_wopcm *wopcm);
-int intel_wopcm_init_hw(struct intel_wopcm *wopcm);
+int intel_wopcm_init_hw(struct intel_wopcm *wopcm, struct intel_gt *gt);
 
 #endif
-- 
2.20.1

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[RFC 18/33] drm/i915: Compartmentalize i915_ggtt_probe_hw

[Tvrtko Ursulin]

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

Having made start to better code compartmentalization by introducing
struct intel_gt, continue the theme elsewhere in code by making functions
take parameters take what logically makes most sense for them instead of
the global struct drm_i915_private.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 31 +++++++++++++++++++----------
 1 file changed, 21 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index c0d2f6cbb63a..0523b9c3c6c2 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -3507,21 +3507,16 @@ static int i915_gmch_probe(struct i915_ggtt *ggtt)
 	return 0;
 }
 
-/**
- * i915_ggtt_probe_hw - Probe GGTT hardware location
- * @dev_priv: i915 device
- */
-int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv)
+static int ggtt_probe_hw(struct i915_ggtt *ggtt, struct drm_i915_private *i915)
 {
-	struct i915_ggtt *ggtt = &dev_priv->ggtt;
 	int ret;
 
-	ggtt->vm.i915 = dev_priv;
-	ggtt->vm.dma = &dev_priv->drm.pdev->dev;
+	ggtt->vm.i915 = i915;
+	ggtt->vm.dma = &i915->drm.pdev->dev;
 
-	if (INTEL_GEN(dev_priv) <= 5)
+	if (INTEL_GEN(i915) <= 5)
 		ret = i915_gmch_probe(ggtt);
-	else if (INTEL_GEN(dev_priv) < 8)
+	else if (INTEL_GEN(i915) < 8)
 		ret = gen6_gmch_probe(ggtt);
 	else
 		ret = gen8_gmch_probe(ggtt);
@@ -3549,6 +3544,22 @@ int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv)
 	DRM_DEBUG_DRIVER("GMADR size = %lluM\n", (u64)ggtt->mappable_end >> 20);
 	DRM_DEBUG_DRIVER("DSM size = %lluM\n",
 			 (u64)resource_size(&intel_graphics_stolen_res) >> 20);
+
+	return 0;
+}
+
+/**
+ * i915_ggtt_probe_hw - Probe GGTT hardware location
+ * @dev_priv: i915 device
+ */
+int i915_ggtt_probe_hw(struct drm_i915_private *i915)
+{
+	int ret;
+
+	ret = ggtt_probe_hw(&i915->ggtt, i915);
+	if (ret)
+		return ret;
+
 	if (intel_vtd_active())
 		DRM_INFO("VT-d active for gfx access\n");
 
-- 
2.20.1

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[RFC 19/33] drm/i915: Compartmentalize i915_ggtt_init_hw

[Tvrtko Ursulin]

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

Having made start to better code compartmentalization by introducing
struct intel_gt, continue the theme elsewhere in code by making functions
take parameters take what logically makes most sense for them instead of
the global struct drm_i915_private.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 64 +++++++++++++++++++----------
 1 file changed, 42 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 0523b9c3c6c2..9722fe09dc41 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -3566,45 +3566,65 @@ int i915_ggtt_probe_hw(struct drm_i915_private *i915)
 	return 0;
 }
 
-/**
- * i915_ggtt_init_hw - Initialize GGTT hardware
- * @dev_priv: i915 device
- */
-int i915_ggtt_init_hw(struct drm_i915_private *dev_priv)
+static void ggtt_cleanup_hw(struct i915_ggtt *ggtt)
 {
-	struct i915_ggtt *ggtt = &dev_priv->ggtt;
-	int ret;
+	ggtt->vm.cleanup(&ggtt->vm);
+}
 
-	stash_init(&dev_priv->mm.wc_stash);
+static int ggtt_init_hw(struct i915_ggtt *ggtt)
+{
+	struct drm_i915_private *i915 = ggtt->vm.i915;
+	int ret = 0;
+
+	mutex_lock(&i915->drm.struct_mutex);
 
-	/* Note that we use page colouring to enforce a guard page at the
-	 * end of the address space. This is required as the CS may prefetch
-	 * beyond the end of the batch buffer, across the page boundary,
-	 * and beyond the end of the GTT if we do not provide a guard.
-	 */
-	mutex_lock(&dev_priv->drm.struct_mutex);
 	i915_address_space_init(&ggtt->vm, VM_CLASS_GGTT);
 
 	ggtt->vm.is_ggtt = true;
 
 	/* Only VLV supports read-only GGTT mappings */
-	ggtt->vm.has_read_only = IS_VALLEYVIEW(dev_priv);
+	ggtt->vm.has_read_only = IS_VALLEYVIEW(i915);
 
-	if (!HAS_LLC(dev_priv) && !HAS_PPGTT(dev_priv))
+	if (!HAS_LLC(i915) && !HAS_PPGTT(i915))
 		ggtt->vm.mm.color_adjust = i915_gtt_color_adjust;
-	mutex_unlock(&dev_priv->drm.struct_mutex);
 
-	if (!io_mapping_init_wc(&dev_priv->ggtt.iomap,
-				dev_priv->ggtt.gmadr.start,
-				dev_priv->ggtt.mappable_end)) {
+	if (!io_mapping_init_wc(&ggtt->iomap,
+				ggtt->gmadr.start,
+				ggtt->mappable_end)) {
+		ggtt_cleanup_hw(ggtt);
 		ret = -EIO;
-		goto out_gtt_cleanup;
+		goto out;
 	}
 
 	ggtt->mtrr = arch_phys_wc_add(ggtt->gmadr.start, ggtt->mappable_end);
 
 	i915_ggtt_init_fences(ggtt);
 
+out:
+	mutex_unlock(&i915->drm.struct_mutex);
+
+	return ret;
+}
+
+/**
+ * i915_ggtt_init_hw - Initialize GGTT hardware
+ * @dev_priv: i915 device
+ */
+int i915_ggtt_init_hw(struct drm_i915_private *dev_priv)
+{
+	int ret;
+
+	stash_init(&dev_priv->mm.wc_stash);
+
+	/* Note that we use page colouring to enforce a guard page at the
+	 * end of the address space. This is required as the CS may prefetch
+	 * beyond the end of the batch buffer, across the page boundary,
+	 * and beyond the end of the GTT if we do not provide a guard.
+	 */
+	ret = ggtt_init_hw(&dev_priv->ggtt);
+	if (ret)
+		return ret;
+
 	/*
 	 * Initialise stolen early so that we may reserve preallocated
 	 * objects for the BIOS to KMS transition.
@@ -3616,7 +3636,7 @@ int i915_ggtt_init_hw(struct drm_i915_private *dev_priv)
 	return 0;
 
 out_gtt_cleanup:
-	ggtt->vm.cleanup(&ggtt->vm);
+	ggtt_cleanup_hw(&dev_priv->ggtt);
 	return ret;
 }
 
-- 
2.20.1

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[RFC 20/33] drm/i915: Make ggtt invalidation work on ggtt

[Tvrtko Ursulin]

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

It is more logical for ggtt invalidation to take ggtt as input parameter.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 51 ++++++++++++++---------------
 drivers/gpu/drm/i915/i915_gem_gtt.h |  2 +-
 2 files changed, 26 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 9722fe09dc41..df3b91650aaf 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -111,9 +111,9 @@
 static int
 i915_get_ggtt_vma_pages(struct i915_vma *vma);
 
-static void gen6_ggtt_invalidate(struct drm_i915_private *i915)
+static void gen6_ggtt_invalidate(struct i915_ggtt *ggtt)
 {
-	struct intel_uncore *uncore = &i915->uncore;
+	struct intel_uncore *uncore = &ggtt->vm.i915->uncore;
 
 	/*
 	 * Note that as an uncached mmio write, this will flush the
@@ -122,24 +122,19 @@ static void gen6_ggtt_invalidate(struct drm_i915_private *i915)
 	intel_uncore_write_fw(uncore, GFX_FLSH_CNTL_GEN6, GFX_FLSH_CNTL_EN);
 }
 
-static void guc_ggtt_invalidate(struct drm_i915_private *i915)
+static void guc_ggtt_invalidate(struct i915_ggtt *ggtt)
 {
-	struct intel_uncore *uncore = &i915->uncore;
+	struct intel_uncore *uncore = &ggtt->vm.i915->uncore;
 
-	gen6_ggtt_invalidate(i915);
+	gen6_ggtt_invalidate(ggtt);
 	intel_uncore_write_fw(uncore, GEN8_GTCR, GEN8_GTCR_INVALIDATE);
 }
 
-static void gmch_ggtt_invalidate(struct drm_i915_private *i915)
+static void gmch_ggtt_invalidate(struct i915_ggtt *ggtt)
 {
 	intel_gtt_chipset_flush();
 }
 
-static inline void i915_ggtt_invalidate(struct drm_i915_private *i915)
-{
-	i915->ggtt.invalidate(i915);
-}
-
 static int ppgtt_bind_vma(struct i915_vma *vma,
 			  enum i915_cache_level cache_level,
 			  u32 unused)
@@ -1876,7 +1871,7 @@ static int gen6_alloc_va_range(struct i915_address_space *vm,
 
 	if (flush) {
 		mark_tlbs_dirty(&ppgtt->base);
-		gen6_ggtt_invalidate(vm->i915);
+		gen6_ggtt_invalidate(&vm->i915->ggtt);
 	}
 
 	intel_runtime_pm_put(&vm->i915->runtime_pm, wakeref);
@@ -2025,7 +2020,7 @@ static int pd_vma_bind(struct i915_vma *vma,
 		gen6_write_pde(ppgtt, pde, pt);
 
 	mark_tlbs_dirty(&ppgtt->base);
-	gen6_ggtt_invalidate(ppgtt->base.vm.i915);
+	gen6_ggtt_invalidate(ggtt);
 
 	return 0;
 }
@@ -2340,7 +2335,7 @@ void i915_gem_suspend_gtt_mappings(struct drm_i915_private *dev_priv)
 
 	ggtt->vm.clear_range(&ggtt->vm, 0, ggtt->vm.total);
 
-	i915_ggtt_invalidate(dev_priv);
+	ggtt->invalidate(ggtt);
 }
 
 int i915_gem_gtt_prepare_pages(struct drm_i915_gem_object *obj,
@@ -2386,7 +2381,7 @@ static void gen8_ggtt_insert_page(struct i915_address_space *vm,
 
 	gen8_set_pte(pte, gen8_pte_encode(addr, level, 0));
 
-	ggtt->invalidate(vm->i915);
+	ggtt->invalidate(ggtt);
 }
 
 static void gen8_ggtt_insert_entries(struct i915_address_space *vm,
@@ -2414,7 +2409,7 @@ static void gen8_ggtt_insert_entries(struct i915_address_space *vm,
 	 * We want to flush the TLBs only after we're certain all the PTE
 	 * updates have finished.
 	 */
-	ggtt->invalidate(vm->i915);
+	ggtt->invalidate(ggtt);
 }
 
 static void gen6_ggtt_insert_page(struct i915_address_space *vm,
@@ -2429,7 +2424,7 @@ static void gen6_ggtt_insert_page(struct i915_address_space *vm,
 
 	iowrite32(vm->pte_encode(addr, level, flags), pte);
 
-	ggtt->invalidate(vm->i915);
+	ggtt->invalidate(ggtt);
 }
 
 /*
@@ -2455,7 +2450,7 @@ static void gen6_ggtt_insert_entries(struct i915_address_space *vm,
 	 * We want to flush the TLBs only after we're certain all the PTE
 	 * updates have finished.
 	 */
-	ggtt->invalidate(vm->i915);
+	ggtt->invalidate(ggtt);
 }
 
 static void nop_clear_range(struct i915_address_space *vm,
@@ -3650,25 +3645,29 @@ int i915_ggtt_enable_hw(struct drm_i915_private *dev_priv)
 
 void i915_ggtt_enable_guc(struct drm_i915_private *i915)
 {
-	GEM_BUG_ON(i915->ggtt.invalidate != gen6_ggtt_invalidate);
+	struct i915_ggtt *ggtt = &i915->ggtt;
 
-	i915->ggtt.invalidate = guc_ggtt_invalidate;
+	GEM_BUG_ON(ggtt->invalidate != gen6_ggtt_invalidate);
 
-	i915_ggtt_invalidate(i915);
+	ggtt->invalidate = guc_ggtt_invalidate;
+
+	ggtt->invalidate(ggtt);
 }
 
 void i915_ggtt_disable_guc(struct drm_i915_private *i915)
 {
+	struct i915_ggtt *ggtt = &i915->ggtt;
+
 	/* XXX Temporary pardon for error unload */
-	if (i915->ggtt.invalidate == gen6_ggtt_invalidate)
+	if (ggtt->invalidate == gen6_ggtt_invalidate)
 		return;
 
 	/* We should only be called after i915_ggtt_enable_guc() */
-	GEM_BUG_ON(i915->ggtt.invalidate != guc_ggtt_invalidate);
+	GEM_BUG_ON(ggtt->invalidate != guc_ggtt_invalidate);
 
-	i915->ggtt.invalidate = gen6_ggtt_invalidate;
+	ggtt->invalidate = gen6_ggtt_invalidate;
 
-	i915_ggtt_invalidate(i915);
+	ggtt->invalidate(ggtt);
 }
 
 void i915_gem_restore_gtt_mappings(struct drm_i915_private *dev_priv)
@@ -3710,7 +3709,7 @@ void i915_gem_restore_gtt_mappings(struct drm_i915_private *dev_priv)
 	}
 
 	ggtt->vm.closed = false;
-	i915_ggtt_invalidate(dev_priv);
+	ggtt->invalidate(ggtt);
 
 	mutex_unlock(&ggtt->vm.mutex);
 
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index f8c06288be65..b541190db6e8 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -401,7 +401,7 @@ struct i915_ggtt {
 
 	/** "Graphics Stolen Memory" holds the global PTEs */
 	void __iomem *gsm;
-	void (*invalidate)(struct drm_i915_private *dev_priv);
+	void (*invalidate)(struct i915_ggtt *ggtt);
 
 	bool do_idle_maps;
 
-- 
2.20.1

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[RFC 21/33] drm/i915: Store intel_gt backpointer in vm

[Tvrtko Ursulin]

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

This will come useful in the following patch.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 16 ++++++++++------
 drivers/gpu/drm/i915/i915_gem_gtt.h |  1 +
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index df3b91650aaf..a9893cbff97d 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1587,9 +1587,11 @@ static int gen8_preallocate_top_level_pdp(struct i915_ppgtt *ppgtt)
 	return -ENOMEM;
 }
 
-static void ppgtt_init(struct drm_i915_private *i915,
-		       struct i915_ppgtt *ppgtt)
+static void ppgtt_init(struct i915_ppgtt *ppgtt, struct intel_gt *gt)
 {
+	struct drm_i915_private *i915 = gt->i915;
+
+	ppgtt->vm.gt = gt;
 	ppgtt->vm.i915 = i915;
 	ppgtt->vm.dma = &i915->drm.pdev->dev;
 	ppgtt->vm.total = BIT_ULL(INTEL_INFO(i915)->ppgtt_size);
@@ -1618,7 +1620,7 @@ static struct i915_ppgtt *gen8_ppgtt_create(struct drm_i915_private *i915)
 	if (!ppgtt)
 		return ERR_PTR(-ENOMEM);
 
-	ppgtt_init(i915, ppgtt);
+	ppgtt_init(ppgtt, &i915->gt);
 
 	/*
 	 * From bdw, there is hw support for read-only pages in the PPGTT.
@@ -2155,7 +2157,7 @@ static struct i915_ppgtt *gen6_ppgtt_create(struct drm_i915_private *i915)
 	if (!ppgtt)
 		return ERR_PTR(-ENOMEM);
 
-	ppgtt_init(i915, &ppgtt->base);
+	ppgtt_init(&ppgtt->base, &i915->gt);
 
 	ppgtt->base.vm.allocate_va_range = gen6_alloc_va_range;
 	ppgtt->base.vm.clear_range = gen6_ppgtt_clear_range;
@@ -3502,10 +3504,12 @@ static int i915_gmch_probe(struct i915_ggtt *ggtt)
 	return 0;
 }
 
-static int ggtt_probe_hw(struct i915_ggtt *ggtt, struct drm_i915_private *i915)
+static int ggtt_probe_hw(struct i915_ggtt *ggtt, struct intel_gt *gt)
 {
+	struct drm_i915_private *i915 = gt->i915;
 	int ret;
 
+	ggtt->vm.gt = gt;
 	ggtt->vm.i915 = i915;
 	ggtt->vm.dma = &i915->drm.pdev->dev;
 
@@ -3551,7 +3555,7 @@ int i915_ggtt_probe_hw(struct drm_i915_private *i915)
 {
 	int ret;
 
-	ret = ggtt_probe_hw(&i915->ggtt, i915);
+	ret = ggtt_probe_hw(&i915->ggtt, &i915->gt);
 	if (ret)
 		return ret;
 
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index b541190db6e8..9a3d96370f07 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -297,6 +297,7 @@ struct i915_address_space {
 	struct kref ref;
 
 	struct drm_mm mm;
+	struct intel_gt *gt;
 	struct drm_i915_private *i915;
 	struct device *dma;
 	/* Every address space belongs to a struct file - except for the global
-- 
2.20.1

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[RFC 22/33] drm/i915: Compartmentalize i915_gem_suspend/restore_gtt_mappings

[Tvrtko Ursulin]

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

Having made start to better code compartmentalization by introducing
struct intel_gt, continue the theme elsewhere in code by making functions
take parameters take what logically makes most sense for them instead of
the global struct drm_i915_private.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 29 +++++++++++++++++++----------
 1 file changed, 19 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index a9893cbff97d..8683acd23dfd 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2323,23 +2323,28 @@ static bool needs_idle_maps(struct drm_i915_private *dev_priv)
 	return IS_GEN(dev_priv, 5) && IS_MOBILE(dev_priv) && intel_vtd_active();
 }
 
-void i915_gem_suspend_gtt_mappings(struct drm_i915_private *dev_priv)
+static void ggtt_suspend_mappings(struct i915_ggtt *ggtt)
 {
-	struct i915_ggtt *ggtt = &dev_priv->ggtt;
+	struct drm_i915_private *i915 = ggtt->vm.i915;
 
 	/* Don't bother messing with faults pre GEN6 as we have little
 	 * documentation supporting that it's a good idea.
 	 */
-	if (INTEL_GEN(dev_priv) < 6)
+	if (INTEL_GEN(i915) < 6)
 		return;
 
-	intel_gt_check_and_clear_faults(&dev_priv->gt);
+	intel_gt_check_and_clear_faults(ggtt->vm.gt);
 
 	ggtt->vm.clear_range(&ggtt->vm, 0, ggtt->vm.total);
 
 	ggtt->invalidate(ggtt);
 }
 
+void i915_gem_suspend_gtt_mappings(struct drm_i915_private *i915)
+{
+	ggtt_suspend_mappings(&i915->ggtt);
+}
+
 int i915_gem_gtt_prepare_pages(struct drm_i915_gem_object *obj,
 			       struct sg_table *pages)
 {
@@ -3674,12 +3679,11 @@ void i915_ggtt_disable_guc(struct drm_i915_private *i915)
 	ggtt->invalidate(ggtt);
 }
 
-void i915_gem_restore_gtt_mappings(struct drm_i915_private *dev_priv)
+static void ggtt_restore_mappings(struct i915_ggtt *ggtt)
 {
-	struct i915_ggtt *ggtt = &dev_priv->ggtt;
 	struct i915_vma *vma, *vn;
 
-	intel_gt_check_and_clear_faults(&dev_priv->gt);
+	intel_gt_check_and_clear_faults(ggtt->vm.gt);
 
 	mutex_lock(&ggtt->vm.mutex);
 
@@ -3716,12 +3720,17 @@ void i915_gem_restore_gtt_mappings(struct drm_i915_private *dev_priv)
 	ggtt->invalidate(ggtt);
 
 	mutex_unlock(&ggtt->vm.mutex);
+}
+
+void i915_gem_restore_gtt_mappings(struct drm_i915_private *i915)
+{
+	ggtt_restore_mappings(&i915->ggtt);
 
-	if (INTEL_GEN(dev_priv) >= 8) {
-		struct intel_ppat *ppat = &dev_priv->ppat;
+	if (INTEL_GEN(i915) >= 8) {
+		struct intel_ppat *ppat = &i915->ppat;
 
 		bitmap_set(ppat->dirty, 0, ppat->max_entries);
-		dev_priv->ppat.update_hw(dev_priv);
+		i915->ppat.update_hw(i915);
 		return;
 	}
 }
-- 
2.20.1

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[RFC 23/33] drm/i915: Convert i915_gem_flush_ggtt_writes to intel_gt

[Tvrtko Ursulin]

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

Having introduced struct intel_gt (named the anonymous structure in i915)
we can start using it to compartmentalize our code better. It makes more
sense logically to have the code internally like this and it will also
help with future split between gt and display in i915.

v2:
 * Keep ggtt flush before fb obj flush. (Chris)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_object.c    | 12 +++---
 .../drm/i915/gem/selftests/i915_gem_mman.c    |  3 +-
 drivers/gpu/drm/i915/gt/intel_gt.c            | 41 +++++++++++++++++++
 drivers/gpu/drm/i915/gt/intel_gt.h            |  2 +
 drivers/gpu/drm/i915/i915_drv.h               |  2 -
 drivers/gpu/drm/i915/i915_gem.c               | 40 ------------------
 drivers/gpu/drm/i915/i915_vma.c               |  3 +-
 drivers/gpu/drm/i915/selftests/i915_gem_gtt.c |  2 +-
 8 files changed, 54 insertions(+), 51 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.c b/drivers/gpu/drm/i915/gem/i915_gem_object.c
index a4047a585c8b..f58d45ae10d0 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object.c
@@ -22,6 +22,7 @@
  *
  */
 
+#include "gt/intel_gt.h"
 #include "i915_drv.h"
 #include "i915_gem_clflush.h"
 #include "i915_gem_context.h"
@@ -367,7 +368,6 @@ void
 i915_gem_object_flush_write_domain(struct drm_i915_gem_object *obj,
 				   unsigned int flush_domains)
 {
-	struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
 	struct i915_vma *vma;
 
 	assert_object_held(obj);
@@ -377,17 +377,17 @@ i915_gem_object_flush_write_domain(struct drm_i915_gem_object *obj,
 
 	switch (obj->write_domain) {
 	case I915_GEM_DOMAIN_GTT:
-		i915_gem_flush_ggtt_writes(dev_priv);
-
-		intel_fb_obj_flush(obj,
-				   fb_write_origin(obj, I915_GEM_DOMAIN_GTT));
-
 		for_each_ggtt_vma(vma, obj) {
 			if (vma->iomap)
 				continue;
 
+			intel_gt_flush_ggtt_writes(vma->vm->gt);
 			i915_vma_unset_ggtt_write(vma);
+			break;
 		}
+
+		intel_fb_obj_flush(obj,
+				   fb_write_origin(obj, I915_GEM_DOMAIN_GTT));
 		break;
 
 	case I915_GEM_DOMAIN_WC:
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
index 5c81f4b4813a..2812f7fa27fe 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
@@ -6,6 +6,7 @@
 
 #include <linux/prime_numbers.h>
 
+#include "gt/intel_gt.h"
 #include "gt/intel_gt_pm.h"
 #include "huge_gem_object.h"
 #include "i915_selftest.h"
@@ -143,7 +144,7 @@ static int check_partial_mapping(struct drm_i915_gem_object *obj,
 		if (offset >= obj->base.size)
 			continue;
 
-		i915_gem_flush_ggtt_writes(to_i915(obj->base.dev));
+		intel_gt_flush_ggtt_writes(&to_i915(obj->base.dev)->gt);
 
 		p = i915_gem_object_get_page(obj, offset >> PAGE_SHIFT);
 		cpu = kmap(p) + offset_in_page(offset);
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 6f6f61cc142d..2500bef06af4 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -150,3 +150,44 @@ void intel_gt_check_and_clear_faults(struct intel_gt *gt)
 
 	intel_gt_clear_error_registers(gt, ALL_ENGINES);
 }
+
+void intel_gt_flush_ggtt_writes(struct intel_gt *gt)
+{
+	struct drm_i915_private *i915 = gt->i915;
+	intel_wakeref_t wakeref;
+
+	/*
+	 * No actual flushing is required for the GTT write domain for reads
+	 * from the GTT domain. Writes to it "immediately" go to main memory
+	 * as far as we know, so there's no chipset flush. It also doesn't
+	 * land in the GPU render cache.
+	 *
+	 * However, we do have to enforce the order so that all writes through
+	 * the GTT land before any writes to the device, such as updates to
+	 * the GATT itself.
+	 *
+	 * We also have to wait a bit for the writes to land from the GTT.
+	 * An uncached read (i.e. mmio) seems to be ideal for the round-trip
+	 * timing. This issue has only been observed when switching quickly
+	 * between GTT writes and CPU reads from inside the kernel on recent hw,
+	 * and it appears to only affect discrete GTT blocks (i.e. on LLC
+	 * system agents we cannot reproduce this behaviour, until Cannonlake
+	 * that was!).
+	 */
+
+	wmb();
+
+	if (INTEL_INFO(i915)->has_coherent_ggtt)
+		return;
+
+	i915_gem_chipset_flush(i915);
+
+	with_intel_runtime_pm(&i915->runtime_pm, wakeref) {
+		struct intel_uncore *uncore = gt->uncore;
+
+		spin_lock_irq(&uncore->lock);
+		intel_uncore_posting_read_fw(uncore,
+					     RING_HEAD(RENDER_RING_BASE));
+		spin_unlock_irq(&uncore->lock);
+	}
+}
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
index 1847c189bd78..d894c1178116 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt.h
@@ -18,4 +18,6 @@ void intel_gt_check_and_clear_faults(struct intel_gt *gt);
 void intel_gt_clear_error_registers(struct intel_gt *gt,
 				    intel_engine_mask_t engine_mask);
 
+void intel_gt_flush_ggtt_writes(struct intel_gt *gt);
+
 #endif /* __INTEL_GT_H__ */
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 2c4c8ee4133b..d9c02bf42052 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2600,8 +2600,6 @@ int __must_check i915_gem_evict_for_node(struct i915_address_space *vm,
 					 unsigned int flags);
 int i915_gem_evict_vm(struct i915_address_space *vm);
 
-void i915_gem_flush_ggtt_writes(struct drm_i915_private *dev_priv);
-
 /* belongs in i915_gem_gtt.h */
 static inline void i915_gem_chipset_flush(struct drm_i915_private *dev_priv)
 {
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index ac76ac781afe..79c718f053cd 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -232,46 +232,6 @@ i915_gem_create_ioctl(struct drm_device *dev, void *data,
 			       &args->size, &args->handle);
 }
 
-void i915_gem_flush_ggtt_writes(struct drm_i915_private *dev_priv)
-{
-	intel_wakeref_t wakeref;
-
-	/*
-	 * No actual flushing is required for the GTT write domain for reads
-	 * from the GTT domain. Writes to it "immediately" go to main memory
-	 * as far as we know, so there's no chipset flush. It also doesn't
-	 * land in the GPU render cache.
-	 *
-	 * However, we do have to enforce the order so that all writes through
-	 * the GTT land before any writes to the device, such as updates to
-	 * the GATT itself.
-	 *
-	 * We also have to wait a bit for the writes to land from the GTT.
-	 * An uncached read (i.e. mmio) seems to be ideal for the round-trip
-	 * timing. This issue has only been observed when switching quickly
-	 * between GTT writes and CPU reads from inside the kernel on recent hw,
-	 * and it appears to only affect discrete GTT blocks (i.e. on LLC
-	 * system agents we cannot reproduce this behaviour, until Cannonlake
-	 * that was!).
-	 */
-
-	wmb();
-
-	if (INTEL_INFO(dev_priv)->has_coherent_ggtt)
-		return;
-
-	i915_gem_chipset_flush(dev_priv);
-
-	with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref) {
-		struct intel_uncore *uncore = &dev_priv->uncore;
-
-		spin_lock_irq(&uncore->lock);
-		intel_uncore_posting_read_fw(uncore,
-					     RING_HEAD(RENDER_RING_BASE));
-		spin_unlock_irq(&uncore->lock);
-	}
-}
-
 static int
 shmem_pread(struct page *page, int offset, int len, char __user *user_data,
 	    bool needs_clflush)
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index b295c53085ee..571c6ddd7eaf 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -23,6 +23,7 @@
  */
 
 #include "gt/intel_engine.h"
+#include "gt/intel_gt.h"
 
 #include "i915_vma.h"
 
@@ -408,7 +409,7 @@ void i915_vma_flush_writes(struct i915_vma *vma)
 	if (!i915_vma_has_ggtt_write(vma))
 		return;
 
-	i915_gem_flush_ggtt_writes(vma->vm->i915);
+	intel_gt_flush_ggtt_writes(vma->vm->gt);
 
 	i915_vma_unset_ggtt_write(vma);
 }
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index 1a60b9fe8221..d9531cb5f235 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -1195,7 +1195,7 @@ static int igt_ggtt_page(void *arg)
 		iowrite32(n, vaddr + n);
 		io_mapping_unmap_atomic(vaddr);
 	}
-	i915_gem_flush_ggtt_writes(i915);
+	intel_gt_flush_ggtt_writes(ggtt->vm.gt);
 
 	i915_random_reorder(order, count, &prng);
 	for (n = 0; n < count; n++) {
-- 
2.20.1

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[RFC 24/33] drm/i915: Move i915_gem_chipset_flush to intel_gt

[Tvrtko Ursulin]

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

This aligns better with the rest of restructuring.

v2:
 * Move call out of line. (Chris)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c  |  5 +++--
 drivers/gpu/drm/i915/gem/i915_gem_phys.c        |  3 ++-
 drivers/gpu/drm/i915/gem/selftests/huge_pages.c |  4 +++-
 drivers/gpu/drm/i915/gt/intel_gt.c              |  9 ++++++++-
 drivers/gpu/drm/i915/gt/intel_gt.h              |  1 +
 drivers/gpu/drm/i915/gt/selftest_hangcheck.c    | 14 ++++++++++----
 drivers/gpu/drm/i915/gt/selftest_workarounds.c  |  5 +++--
 drivers/gpu/drm/i915/i915_drv.h                 |  8 --------
 drivers/gpu/drm/i915/i915_gem.c                 |  3 ++-
 drivers/gpu/drm/i915/selftests/i915_request.c   | 10 ++++++----
 drivers/gpu/drm/i915/selftests/igt_spinner.c    |  7 +++++--
 drivers/gpu/drm/i915/selftests/igt_spinner.h    |  3 +++
 12 files changed, 46 insertions(+), 26 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index 528eea44dccf..4ae25515e63c 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -14,6 +14,7 @@
 
 #include "gem/i915_gem_ioctls.h"
 #include "gt/intel_context.h"
+#include "gt/intel_gt.h"
 #include "gt/intel_gt_pm.h"
 
 #include "i915_gem_ioctls.h"
@@ -993,7 +994,7 @@ static void reloc_gpu_flush(struct reloc_cache *cache)
 	__i915_gem_object_flush_map(cache->rq->batch->obj, 0, cache->rq_size);
 	i915_gem_object_unpin_map(cache->rq->batch->obj);
 
-	i915_gem_chipset_flush(cache->rq->i915);
+	intel_gt_chipset_flush(cache->rq->engine->gt);
 
 	i915_request_add(cache->rq);
 	cache->rq = NULL;
@@ -1953,7 +1954,7 @@ static int eb_move_to_gpu(struct i915_execbuffer *eb)
 	eb->exec = NULL;
 
 	/* Unconditionally flush any chipset caches (for streaming writes). */
-	i915_gem_chipset_flush(eb->i915);
+	intel_gt_chipset_flush(eb->engine->gt);
 	return 0;
 
 err_skip:
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_phys.c b/drivers/gpu/drm/i915/gem/i915_gem_phys.c
index 2deac933cf59..7b900ee4ed8d 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_phys.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_phys.c
@@ -13,6 +13,7 @@
 #include <drm/drm_legacy.h> /* for drm_pci.h! */
 #include <drm/drm_pci.h>
 
+#include "gt/intel_gt.h"
 #include "i915_drv.h"
 #include "i915_gem_object.h"
 #include "i915_scatterlist.h"
@@ -60,7 +61,7 @@ static int i915_gem_object_get_pages_phys(struct drm_i915_gem_object *obj)
 		vaddr += PAGE_SIZE;
 	}
 
-	i915_gem_chipset_flush(to_i915(obj->base.dev));
+	intel_gt_chipset_flush(&to_i915(obj->base.dev)->gt);
 
 	st = kmalloc(sizeof(*st), GFP_KERNEL);
 	if (!st) {
diff --git a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
index b74729b6f353..dcf60a8c229e 100644
--- a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
+++ b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
@@ -10,6 +10,8 @@
 
 #include "gem/i915_gem_pm.h"
 
+#include "gt/intel_gt.h"
+
 #include "igt_gem_utils.h"
 #include "mock_context.h"
 
@@ -926,7 +928,7 @@ gpu_write_dw(struct i915_vma *vma, u64 offset, u32 val)
 	}
 
 	*cmd = MI_BATCH_BUFFER_END;
-	i915_gem_chipset_flush(i915);
+	intel_gt_chipset_flush(vma->vm->gt);
 
 	i915_gem_object_unpin_map(obj);
 
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 2500bef06af4..d25bcc4ae2c9 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -180,7 +180,7 @@ void intel_gt_flush_ggtt_writes(struct intel_gt *gt)
 	if (INTEL_INFO(i915)->has_coherent_ggtt)
 		return;
 
-	i915_gem_chipset_flush(i915);
+	intel_gt_chipset_flush(gt);
 
 	with_intel_runtime_pm(&i915->runtime_pm, wakeref) {
 		struct intel_uncore *uncore = gt->uncore;
@@ -191,3 +191,10 @@ void intel_gt_flush_ggtt_writes(struct intel_gt *gt)
 		spin_unlock_irq(&uncore->lock);
 	}
 }
+
+void intel_gt_chipset_flush(struct intel_gt *gt)
+{
+	wmb();
+	if (INTEL_GEN(gt->i915) < 6)
+		intel_gtt_chipset_flush();
+}
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
index d894c1178116..ffdc3014486f 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt.h
@@ -19,5 +19,6 @@ void intel_gt_clear_error_registers(struct intel_gt *gt,
 				    intel_engine_mask_t engine_mask);
 
 void intel_gt_flush_ggtt_writes(struct intel_gt *gt);
+void intel_gt_chipset_flush(struct intel_gt *gt);
 
 #endif /* __INTEL_GT_H__ */
diff --git a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
index b0b2998e56b8..8577baa050fb 100644
--- a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
+++ b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
@@ -25,6 +25,7 @@
 #include <linux/kthread.h>
 
 #include "gem/i915_gem_context.h"
+#include "gt/intel_gt.h"
 #include "intel_engine_pm.h"
 
 #include "i915_selftest.h"
@@ -43,6 +44,7 @@
 
 struct hang {
 	struct drm_i915_private *i915;
+	struct intel_gt *gt;
 	struct drm_i915_gem_object *hws;
 	struct drm_i915_gem_object *obj;
 	struct i915_gem_context *ctx;
@@ -135,6 +137,8 @@ hang_create_request(struct hang *h, struct intel_engine_cs *engine)
 	u32 *batch;
 	int err;
 
+	h->gt = engine->gt;
+
 	if (i915_gem_object_is_active(h->obj)) {
 		struct drm_i915_gem_object *obj;
 		void *vaddr;
@@ -242,7 +246,7 @@ hang_create_request(struct hang *h, struct intel_engine_cs *engine)
 		*batch++ = lower_32_bits(vma->node.start);
 	}
 	*batch++ = MI_BATCH_BUFFER_END; /* not reached */
-	i915_gem_chipset_flush(h->i915);
+	intel_gt_chipset_flush(engine->gt);
 
 	if (rq->engine->emit_init_breadcrumb) {
 		err = rq->engine->emit_init_breadcrumb(rq);
@@ -276,7 +280,9 @@ static u32 hws_seqno(const struct hang *h, const struct i915_request *rq)
 static void hang_fini(struct hang *h)
 {
 	*h->batch = MI_BATCH_BUFFER_END;
-	i915_gem_chipset_flush(h->i915);
+
+	if (h->gt)
+		intel_gt_chipset_flush(h->gt);
 
 	i915_gem_object_unpin_map(h->obj);
 	i915_gem_object_put(h->obj);
@@ -333,7 +339,7 @@ static int igt_hang_sanitycheck(void *arg)
 		i915_request_get(rq);
 
 		*h.batch = MI_BATCH_BUFFER_END;
-		i915_gem_chipset_flush(i915);
+		intel_gt_chipset_flush(engine->gt);
 
 		i915_request_add(rq);
 
@@ -1510,7 +1516,7 @@ static int igt_reset_queue(void *arg)
 		pr_info("%s: Completed %d resets\n", engine->name, count);
 
 		*h.batch = MI_BATCH_BUFFER_END;
-		i915_gem_chipset_flush(i915);
+		intel_gt_chipset_flush(engine->gt);
 
 		i915_request_put(prev);
 
diff --git a/drivers/gpu/drm/i915/gt/selftest_workarounds.c b/drivers/gpu/drm/i915/gt/selftest_workarounds.c
index 91449d5157f6..4db929645e5b 100644
--- a/drivers/gpu/drm/i915/gt/selftest_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/selftest_workarounds.c
@@ -5,6 +5,7 @@
  */
 
 #include "gem/i915_gem_pm.h"
+#include "gt/intel_gt.h"
 #include "i915_selftest.h"
 #include "intel_reset.h"
 
@@ -516,7 +517,7 @@ static int check_dirty_whitelist(struct i915_gem_context *ctx,
 
 		i915_gem_object_flush_map(batch->obj);
 		i915_gem_object_unpin_map(batch->obj);
-		i915_gem_chipset_flush(ctx->i915);
+		intel_gt_chipset_flush(engine->gt);
 
 		rq = igt_request_alloc(ctx, engine);
 		if (IS_ERR(rq)) {
@@ -771,7 +772,7 @@ static int scrub_whitelisted_registers(struct i915_gem_context *ctx,
 	*cs++ = MI_BATCH_BUFFER_END;
 
 	i915_gem_object_flush_map(batch->obj);
-	i915_gem_chipset_flush(ctx->i915);
+	intel_gt_chipset_flush(engine->gt);
 
 	rq = igt_request_alloc(ctx, engine);
 	if (IS_ERR(rq)) {
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index d9c02bf42052..29436387611b 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2600,14 +2600,6 @@ int __must_check i915_gem_evict_for_node(struct i915_address_space *vm,
 					 unsigned int flags);
 int i915_gem_evict_vm(struct i915_address_space *vm);
 
-/* belongs in i915_gem_gtt.h */
-static inline void i915_gem_chipset_flush(struct drm_i915_private *dev_priv)
-{
-	wmb();
-	if (INTEL_GEN(dev_priv) < 6)
-		intel_gtt_chipset_flush();
-}
-
 /* i915_gem_stolen.c */
 int i915_gem_stolen_insert_node(struct drm_i915_private *dev_priv,
 				struct drm_mm_node *node, u64 size,
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 79c718f053cd..34d0a1d73516 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -44,6 +44,7 @@
 #include "gem/i915_gem_pm.h"
 #include "gem/i915_gemfs.h"
 #include "gt/intel_engine_pm.h"
+#include "gt/intel_gt.h"
 #include "gt/intel_gt_pm.h"
 #include "gt/intel_mocs.h"
 #include "gt/intel_reset.h"
@@ -141,7 +142,7 @@ i915_gem_phys_pwrite(struct drm_i915_gem_object *obj,
 		return -EFAULT;
 
 	drm_clflush_virt_range(vaddr, args->size);
-	i915_gem_chipset_flush(to_i915(obj->base.dev));
+	intel_gt_chipset_flush(&to_i915(obj->base.dev)->gt);
 
 	intel_fb_obj_flush(obj, ORIGIN_CPU);
 	return 0;
diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c
index 3de24f3d4ed5..aea80d891b25 100644
--- a/drivers/gpu/drm/i915/selftests/i915_request.c
+++ b/drivers/gpu/drm/i915/selftests/i915_request.c
@@ -27,6 +27,8 @@
 #include "gem/i915_gem_pm.h"
 #include "gem/selftests/mock_context.h"
 
+#include "gt/intel_gt.h"
+
 #include "i915_random.h"
 #include "i915_selftest.h"
 #include "igt_live_test.h"
@@ -624,7 +626,7 @@ static struct i915_vma *empty_batch(struct drm_i915_private *i915)
 	__i915_gem_object_flush_map(obj, 0, 64);
 	i915_gem_object_unpin_map(obj);
 
-	i915_gem_chipset_flush(i915);
+	intel_gt_chipset_flush(&i915->gt);
 
 	vma = i915_vma_instance(obj, &i915->ggtt.vm, NULL);
 	if (IS_ERR(vma)) {
@@ -797,7 +799,7 @@ static struct i915_vma *recursive_batch(struct drm_i915_private *i915)
 	__i915_gem_object_flush_map(obj, 0, 64);
 	i915_gem_object_unpin_map(obj);
 
-	i915_gem_chipset_flush(i915);
+	intel_gt_chipset_flush(&i915->gt);
 
 	return vma;
 
@@ -815,7 +817,7 @@ static int recursive_batch_resolve(struct i915_vma *batch)
 		return PTR_ERR(cmd);
 
 	*cmd = MI_BATCH_BUFFER_END;
-	i915_gem_chipset_flush(batch->vm->i915);
+	intel_gt_chipset_flush(batch->vm->gt);
 
 	i915_gem_object_unpin_map(batch->obj);
 
@@ -1039,7 +1041,7 @@ static int live_sequential_engines(void *arg)
 					      I915_MAP_WC);
 		if (!IS_ERR(cmd)) {
 			*cmd = MI_BATCH_BUFFER_END;
-			i915_gem_chipset_flush(i915);
+			intel_gt_chipset_flush(engine->gt);
 
 			i915_gem_object_unpin_map(request[id]->batch->obj);
 		}
diff --git a/drivers/gpu/drm/i915/selftests/igt_spinner.c b/drivers/gpu/drm/i915/selftests/igt_spinner.c
index 1e59b543cf27..0c1f65262a63 100644
--- a/drivers/gpu/drm/i915/selftests/igt_spinner.c
+++ b/drivers/gpu/drm/i915/selftests/igt_spinner.c
@@ -3,6 +3,7 @@
  *
  * Copyright © 2018 Intel Corporation
  */
+#include "gt/intel_gt.h"
 
 #include "gem/selftests/igt_gem_utils.h"
 
@@ -94,6 +95,8 @@ igt_spinner_create_request(struct igt_spinner *spin,
 	u32 *batch;
 	int err;
 
+	spin->gt = engine->gt;
+
 	vma = i915_vma_instance(spin->obj, ctx->vm, NULL);
 	if (IS_ERR(vma))
 		return ERR_CAST(vma);
@@ -138,7 +141,7 @@ igt_spinner_create_request(struct igt_spinner *spin,
 	*batch++ = upper_32_bits(vma->node.start);
 	*batch++ = MI_BATCH_BUFFER_END; /* not reached */
 
-	i915_gem_chipset_flush(spin->i915);
+	intel_gt_chipset_flush(engine->gt);
 
 	if (engine->emit_init_breadcrumb &&
 	    rq->timeline->has_initial_breadcrumb) {
@@ -172,7 +175,7 @@ hws_seqno(const struct igt_spinner *spin, const struct i915_request *rq)
 void igt_spinner_end(struct igt_spinner *spin)
 {
 	*spin->batch = MI_BATCH_BUFFER_END;
-	i915_gem_chipset_flush(spin->i915);
+	intel_gt_chipset_flush(spin->gt);
 }
 
 void igt_spinner_fini(struct igt_spinner *spin)
diff --git a/drivers/gpu/drm/i915/selftests/igt_spinner.h b/drivers/gpu/drm/i915/selftests/igt_spinner.h
index 34a88ac9b47a..1bfc39efa773 100644
--- a/drivers/gpu/drm/i915/selftests/igt_spinner.h
+++ b/drivers/gpu/drm/i915/selftests/igt_spinner.h
@@ -14,8 +14,11 @@
 #include "i915_request.h"
 #include "i915_selftest.h"
 
+struct intel_gt;
+
 struct igt_spinner {
 	struct drm_i915_private *i915;
+	struct intel_gt *gt;
 	struct drm_i915_gem_object *hws;
 	struct drm_i915_gem_object *obj;
 	u32 *batch;
-- 
2.20.1

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[RFC 25/33] drm/i915: Compartmentalize timeline_init/park/fini

[Tvrtko Ursulin]

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

Continuing on the theme of better logical organization of our code, make
the first step towards making the timeline code better isolated from wider
struct drm_i915_private.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_timeline.c | 67 +++++++++++++++++-----------
 1 file changed, 41 insertions(+), 26 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_timeline.c b/drivers/gpu/drm/i915/i915_timeline.c
index c311ce9c6f9d..dc885a13b16d 100644
--- a/drivers/gpu/drm/i915/i915_timeline.c
+++ b/drivers/gpu/drm/i915/i915_timeline.c
@@ -261,18 +261,23 @@ int i915_timeline_init(struct drm_i915_private *i915,
 	return 0;
 }
 
-void i915_timelines_init(struct drm_i915_private *i915)
+static void timelines_init(struct intel_gt *gt)
 {
-	struct i915_gt_timelines *gt = &i915->gt.timelines;
+	struct i915_gt_timelines *timelines = &gt->timelines;
 
-	mutex_init(&gt->mutex);
-	INIT_LIST_HEAD(&gt->active_list);
+	mutex_init(&timelines->mutex);
+	INIT_LIST_HEAD(&timelines->active_list);
 
-	spin_lock_init(&gt->hwsp_lock);
-	INIT_LIST_HEAD(&gt->hwsp_free_list);
+	spin_lock_init(&timelines->hwsp_lock);
+	INIT_LIST_HEAD(&timelines->hwsp_free_list);
 
 	/* via i915_gem_wait_for_idle() */
-	i915_gem_shrinker_taints_mutex(i915, &gt->mutex);
+	i915_gem_shrinker_taints_mutex(gt->i915, &timelines->mutex);
+}
+
+void i915_timelines_init(struct drm_i915_private *i915)
+{
+	timelines_init(&i915->gt);
 }
 
 static void timeline_add_to_active(struct i915_timeline *tl)
@@ -293,6 +298,24 @@ static void timeline_remove_from_active(struct i915_timeline *tl)
 	mutex_unlock(&gt->mutex);
 }
 
+static void timelines_park(struct intel_gt *gt)
+{
+	struct i915_gt_timelines *timelines = &gt->timelines;
+	struct i915_timeline *timeline;
+
+	mutex_lock(&timelines->mutex);
+	list_for_each_entry(timeline, &timelines->active_list, link) {
+		/*
+		 * All known fences are completed so we can scrap
+		 * the current sync point tracking and start afresh,
+		 * any attempt to wait upon a previous sync point
+		 * will be skipped as the fence was signaled.
+		 */
+		i915_syncmap_free(&timeline->sync);
+	}
+	mutex_unlock(&timelines->mutex);
+}
+
 /**
  * i915_timelines_park - called when the driver idles
  * @i915: the drm_i915_private device
@@ -305,20 +328,7 @@ static void timeline_remove_from_active(struct i915_timeline *tl)
  */
 void i915_timelines_park(struct drm_i915_private *i915)
 {
-	struct i915_gt_timelines *gt = &i915->gt.timelines;
-	struct i915_timeline *timeline;
-
-	mutex_lock(&gt->mutex);
-	list_for_each_entry(timeline, &gt->active_list, link) {
-		/*
-		 * All known fences are completed so we can scrap
-		 * the current sync point tracking and start afresh,
-		 * any attempt to wait upon a previous sync point
-		 * will be skipped as the fence was signaled.
-		 */
-		i915_syncmap_free(&timeline->sync);
-	}
-	mutex_unlock(&gt->mutex);
+	timelines_park(&i915->gt);
 }
 
 void i915_timeline_fini(struct i915_timeline *timeline)
@@ -563,14 +573,19 @@ void __i915_timeline_free(struct kref *kref)
 	kfree(timeline);
 }
 
-void i915_timelines_fini(struct drm_i915_private *i915)
+static void timelines_fini(struct intel_gt *gt)
 {
-	struct i915_gt_timelines *gt = &i915->gt.timelines;
+	struct i915_gt_timelines *timelines = &gt->timelines;
 
-	GEM_BUG_ON(!list_empty(&gt->active_list));
-	GEM_BUG_ON(!list_empty(&gt->hwsp_free_list));
+	GEM_BUG_ON(!list_empty(&timelines->active_list));
+	GEM_BUG_ON(!list_empty(&timelines->hwsp_free_list));
 
-	mutex_destroy(&gt->mutex);
+	mutex_destroy(&timelines->mutex);
+}
+
+void i915_timelines_fini(struct drm_i915_private *i915)
+{
+	timelines_fini(&i915->gt);
 }
 
 #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
-- 
2.20.1

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[RFC 26/33] drm/i915: Compartmentalize i915_ggtt_cleanup_hw

[Tvrtko Ursulin]

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

Continuing on the theme of better logical organization of our code, make
the first step towards making the ggtt code better isolated from wider
struct drm_i915_private.

v2:
 * Cleanup of mm.wc_stash does not need struct_mutex. (Chris)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 55 ++++++++++++++++-------------
 1 file changed, 31 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 8683acd23dfd..314c480f9dac 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2825,14 +2825,19 @@ static void fini_aliasing_ppgtt(struct drm_i915_private *i915)
 	struct i915_ggtt *ggtt = &i915->ggtt;
 	struct i915_ppgtt *ppgtt;
 
+	mutex_lock(&i915->drm.struct_mutex);
+
 	ppgtt = fetch_and_zero(&i915->mm.aliasing_ppgtt);
 	if (!ppgtt)
-		return;
+		goto out;
 
 	i915_vm_put(&ppgtt->vm);
 
 	ggtt->vm.vma_ops.bind_vma   = ggtt_bind_vma;
 	ggtt->vm.vma_ops.unbind_vma = ggtt_unbind_vma;
+
+out:
+	mutex_unlock(&i915->drm.struct_mutex);
 }
 
 static int ggtt_reserve_guc_top(struct i915_ggtt *ggtt)
@@ -2933,20 +2938,14 @@ int i915_gem_init_ggtt(struct drm_i915_private *dev_priv)
 	return ret;
 }
 
-/**
- * i915_ggtt_cleanup_hw - Clean up GGTT hardware initialization
- * @dev_priv: i915 device
- */
-void i915_ggtt_cleanup_hw(struct drm_i915_private *dev_priv)
+static void ggtt_cleanup_hw(struct i915_ggtt *ggtt)
 {
-	struct i915_ggtt *ggtt = &dev_priv->ggtt;
+	struct drm_i915_private *i915 = ggtt->vm.i915;
 	struct i915_vma *vma, *vn;
-	struct pagevec *pvec;
 
 	ggtt->vm.closed = true;
 
-	mutex_lock(&dev_priv->drm.struct_mutex);
-	fini_aliasing_ppgtt(dev_priv);
+	mutex_lock(&i915->drm.struct_mutex);
 
 	list_for_each_entry_safe(vma, vn, &ggtt->vm.bound_list, vm_link)
 		WARN_ON(i915_vma_unbind(vma));
@@ -2963,18 +2962,31 @@ void i915_ggtt_cleanup_hw(struct drm_i915_private *dev_priv)
 
 	ggtt->vm.cleanup(&ggtt->vm);
 
-	pvec = &dev_priv->mm.wc_stash.pvec;
+	mutex_unlock(&i915->drm.struct_mutex);
+
+	arch_phys_wc_del(ggtt->mtrr);
+	io_mapping_fini(&ggtt->iomap);
+}
+
+/**
+ * i915_ggtt_cleanup_hw - Clean up GGTT hardware initialization
+ * @dev_priv: i915 device
+ */
+void i915_ggtt_cleanup_hw(struct drm_i915_private *i915)
+{
+	struct pagevec *pvec;
+
+	fini_aliasing_ppgtt(i915);
+
+	ggtt_cleanup_hw(&i915->ggtt);
+
+	pvec = &i915->mm.wc_stash.pvec;
 	if (pvec->nr) {
 		set_pages_array_wb(pvec->pages, pvec->nr);
 		__pagevec_release(pvec);
 	}
 
-	mutex_unlock(&dev_priv->drm.struct_mutex);
-
-	arch_phys_wc_del(ggtt->mtrr);
-	io_mapping_fini(&ggtt->iomap);
-
-	i915_gem_cleanup_stolen(dev_priv);
+	i915_gem_cleanup_stolen(i915);
 }
 
 static unsigned int gen6_get_total_gtt_size(u16 snb_gmch_ctl)
@@ -3570,11 +3582,6 @@ int i915_ggtt_probe_hw(struct drm_i915_private *i915)
 	return 0;
 }
 
-static void ggtt_cleanup_hw(struct i915_ggtt *ggtt)
-{
-	ggtt->vm.cleanup(&ggtt->vm);
-}
-
 static int ggtt_init_hw(struct i915_ggtt *ggtt)
 {
 	struct drm_i915_private *i915 = ggtt->vm.i915;
@@ -3595,7 +3602,7 @@ static int ggtt_init_hw(struct i915_ggtt *ggtt)
 	if (!io_mapping_init_wc(&ggtt->iomap,
 				ggtt->gmadr.start,
 				ggtt->mappable_end)) {
-		ggtt_cleanup_hw(ggtt);
+		ggtt->vm.cleanup(&ggtt->vm);
 		ret = -EIO;
 		goto out;
 	}
@@ -3640,7 +3647,7 @@ int i915_ggtt_init_hw(struct drm_i915_private *dev_priv)
 	return 0;
 
 out_gtt_cleanup:
-	ggtt_cleanup_hw(&dev_priv->ggtt);
+	dev_priv->ggtt.vm.cleanup(&dev_priv->ggtt.vm);
 	return ret;
 }
 
-- 
2.20.1

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[RFC 27/33] drm/i915: Compartmentalize i915_gem_init_ggtt

[Tvrtko Ursulin]

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

Continuing on the theme of better logical organization of our code, make
the first step towards making the ggtt code better isolated from wider
struct drm_i915_private.

v2:
 * Bring the ickle onion unwind back. (Chris)
 * Rename to i915_init_ggtt. (Chris)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
 drivers/gpu/drm/i915/i915_gem.c     |  2 +-
 drivers/gpu/drm/i915/i915_gem_gtt.c | 40 +++++++++++++++++++----------
 drivers/gpu/drm/i915/i915_gem_gtt.h |  2 +-
 3 files changed, 29 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 34d0a1d73516..63fb06125a90 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1509,7 +1509,7 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
 	mutex_lock(&dev_priv->drm.struct_mutex);
 	intel_uncore_forcewake_get(&dev_priv->uncore, FORCEWAKE_ALL);
 
-	ret = i915_gem_init_ggtt(dev_priv);
+	ret = i915_init_ggtt(dev_priv);
 	if (ret) {
 		GEM_BUG_ON(ret == -EIO);
 		goto err_unlock;
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 314c480f9dac..bfb9767237bf 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2866,7 +2866,13 @@ static void ggtt_release_guc_top(struct i915_ggtt *ggtt)
 		drm_mm_remove_node(&ggtt->uc_fw);
 }
 
-int i915_gem_init_ggtt(struct drm_i915_private *dev_priv)
+static void cleanup_init_ggtt(struct i915_ggtt *ggtt)
+{
+	ggtt_release_guc_top(ggtt);
+	drm_mm_remove_node(&ggtt->error_capture);
+}
+
+static int init_ggtt(struct i915_ggtt *ggtt)
 {
 	/* Let GEM Manage all of the aperture.
 	 *
@@ -2877,7 +2883,6 @@ int i915_gem_init_ggtt(struct drm_i915_private *dev_priv)
 	 * aperture.  One page should be enough to keep any prefetching inside
 	 * of the aperture.
 	 */
-	struct i915_ggtt *ggtt = &dev_priv->ggtt;
 	unsigned long hole_start, hole_end;
 	struct drm_mm_node *entry;
 	int ret;
@@ -2889,7 +2894,7 @@ int i915_gem_init_ggtt(struct drm_i915_private *dev_priv)
 	 * why.
 	 */
 	ggtt->pin_bias = max_t(u32, I915_GTT_PAGE_SIZE,
-			       intel_wopcm_guc_size(&dev_priv->wopcm));
+			       intel_wopcm_guc_size(&ggtt->vm.i915->wopcm));
 
 	ret = intel_vgt_balloon(ggtt);
 	if (ret)
@@ -2910,7 +2915,7 @@ int i915_gem_init_ggtt(struct drm_i915_private *dev_priv)
 	 */
 	ret = ggtt_reserve_guc_top(ggtt);
 	if (ret)
-		goto err_reserve;
+		goto err;
 
 	/* Clear any non-preallocated blocks */
 	drm_mm_for_each_hole(entry, &ggtt->vm.mm, hole_start, hole_end) {
@@ -2923,19 +2928,28 @@ int i915_gem_init_ggtt(struct drm_i915_private *dev_priv)
 	/* And finally clear the reserved guard page */
 	ggtt->vm.clear_range(&ggtt->vm, ggtt->vm.total - PAGE_SIZE, PAGE_SIZE);
 
-	if (INTEL_PPGTT(dev_priv) == INTEL_PPGTT_ALIASING) {
-		ret = init_aliasing_ppgtt(dev_priv);
+	return 0;
+
+err:
+	cleanup_init_ggtt(ggtt);
+	return ret;
+}
+
+int i915_init_ggtt(struct drm_i915_private *i915)
+{
+	int ret;
+
+	ret = init_ggtt(&i915->ggtt);
+	if (ret)
+		return ret;
+
+	if (INTEL_PPGTT(i915) == INTEL_PPGTT_ALIASING) {
+		ret = init_aliasing_ppgtt(i915);
 		if (ret)
-			goto err_appgtt;
+			cleanup_init_ggtt(&i915->ggtt);
 	}
 
 	return 0;
-
-err_appgtt:
-	ggtt_release_guc_top(ggtt);
-err_reserve:
-	drm_mm_remove_node(&ggtt->error_capture);
-	return ret;
 }
 
 static void ggtt_cleanup_hw(struct i915_ggtt *ggtt)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 9a3d96370f07..827af6ba36c7 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -646,7 +646,7 @@ int i915_ggtt_init_hw(struct drm_i915_private *dev_priv);
 int i915_ggtt_enable_hw(struct drm_i915_private *dev_priv);
 void i915_ggtt_enable_guc(struct drm_i915_private *i915);
 void i915_ggtt_disable_guc(struct drm_i915_private *i915);
-int i915_gem_init_ggtt(struct drm_i915_private *dev_priv);
+int i915_init_ggtt(struct drm_i915_private *dev_priv);
 void i915_ggtt_cleanup_hw(struct drm_i915_private *dev_priv);
 
 int i915_ppgtt_init_hw(struct intel_gt *gt);
-- 
2.20.1

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[RFC 28/33] drm/i915: Store ggtt pointer in intel_gt

[Tvrtko Ursulin]

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

This will become useful in the following patch.

v2:
 * Assign the pointer through a helper on the top level to work around
   the layering violation. (Chris)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_gt.c       | 5 +++++
 drivers/gpu/drm/i915/gt/intel_gt.h       | 1 +
 drivers/gpu/drm/i915/gt/intel_gt_types.h | 2 ++
 drivers/gpu/drm/i915/i915_drv.c          | 2 ++
 4 files changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index d25bcc4ae2c9..204e7039ca32 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -23,6 +23,11 @@ void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
 	intel_gt_pm_init_early(gt);
 }
 
+void intel_gt_init_hw(struct drm_i915_private *i915)
+{
+	i915->gt.ggtt = &i915->ggtt;
+}
+
 static void rmw_set(struct intel_uncore *uncore, i915_reg_t reg, u32 set)
 {
 	intel_uncore_rmw(uncore, reg, 0, set);
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
index ffdc3014486f..091ded4deead 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt.h
@@ -13,6 +13,7 @@
 struct drm_i915_private;
 
 void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915);
+void intel_gt_init_hw(struct drm_i915_private *i915);
 
 void intel_gt_check_and_clear_faults(struct intel_gt *gt);
 void intel_gt_clear_error_registers(struct intel_gt *gt,
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
index d96df4f68741..233f73316a43 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
@@ -18,11 +18,13 @@
 #include "intel_wakeref.h"
 
 struct drm_i915_private;
+struct i915_ggtt;
 struct intel_uncore;
 
 struct intel_gt {
 	struct drm_i915_private *i915;
 	struct intel_uncore *uncore;
+	struct i915_ggtt *ggtt;
 
 	struct i915_gt_timelines {
 		struct mutex mutex; /* protects list, tainted by GPU */
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 477da7aff0ed..39a35bc10db9 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1586,6 +1586,8 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv)
 	if (ret)
 		goto err_ggtt;
 
+	intel_gt_init_hw(dev_priv);
+
 	ret = i915_ggtt_enable_hw(dev_priv);
 	if (ret) {
 		DRM_ERROR("failed to enable GGTT\n");
-- 
2.20.1

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[RFC 29/33] drm/i915: Compartmentalize ring buffer creation

[Tvrtko Ursulin]

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

Continuing on the theme of compartmentalizing the code better to make
future split between gt and display in global i915 clearer.

v2:
 * Pass in ggtt instead of gt. (Chris)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/intel_ringbuffer.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_ringbuffer.c b/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
index 019bf039f616..e6bb4bfd022f 100644
--- a/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
@@ -1225,16 +1225,16 @@ void intel_ring_unpin(struct intel_ring *ring)
 	i915_timeline_unpin(ring->timeline);
 }
 
-static struct i915_vma *
-intel_ring_create_vma(struct drm_i915_private *dev_priv, int size)
+static struct i915_vma *create_ring_vma(struct i915_ggtt *ggtt, int size)
 {
-	struct i915_address_space *vm = &dev_priv->ggtt.vm;
+	struct i915_address_space *vm = &ggtt->vm;
+	struct drm_i915_private *i915 = vm->i915;
 	struct drm_i915_gem_object *obj;
 	struct i915_vma *vma;
 
-	obj = i915_gem_object_create_stolen(dev_priv, size);
+	obj = i915_gem_object_create_stolen(i915, size);
 	if (!obj)
-		obj = i915_gem_object_create_internal(dev_priv, size);
+		obj = i915_gem_object_create_internal(i915, size);
 	if (IS_ERR(obj))
 		return ERR_CAST(obj);
 
@@ -1261,6 +1261,7 @@ intel_engine_create_ring(struct intel_engine_cs *engine,
 			 struct i915_timeline *timeline,
 			 int size)
 {
+	struct drm_i915_private *i915 = engine->i915;
 	struct intel_ring *ring;
 	struct i915_vma *vma;
 
@@ -1281,12 +1282,12 @@ intel_engine_create_ring(struct intel_engine_cs *engine,
 	 * of the buffer.
 	 */
 	ring->effective_size = size;
-	if (IS_I830(engine->i915) || IS_I845G(engine->i915))
+	if (IS_I830(i915) || IS_I845G(i915))
 		ring->effective_size -= 2 * CACHELINE_BYTES;
 
 	intel_ring_update_space(ring);
 
-	vma = intel_ring_create_vma(engine->i915, size);
+	vma = create_ring_vma(engine->gt->ggtt, size);
 	if (IS_ERR(vma)) {
 		kfree(ring);
 		return ERR_CAST(vma);
-- 
2.20.1

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[RFC 30/33] drm/i915: Save trip via top-level i915 in a few more places

[Tvrtko Ursulin]

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

For gt related operations it makes more logical sense to stay in the realm
of gt instead of dereferencing via driver i915.

This patch handles a few of the easy ones with work requiring more
refactoring still outstanding.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gem/selftests/huge_pages.c       | 3 +--
 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c | 3 +--
 drivers/gpu/drm/i915/gt/intel_engine_cs.c             | 2 +-
 drivers/gpu/drm/i915/gt/intel_lrc.c                   | 4 ++--
 drivers/gpu/drm/i915/gt/intel_ringbuffer.c            | 2 +-
 drivers/gpu/drm/i915/gt/intel_workarounds.c           | 2 +-
 drivers/gpu/drm/i915/gt/selftest_hangcheck.c          | 8 ++++----
 drivers/gpu/drm/i915/gt/selftest_workarounds.c        | 2 +-
 drivers/gpu/drm/i915/i915_gem_gtt.c                   | 4 ++--
 drivers/gpu/drm/i915/i915_gem_render_state.c          | 2 +-
 drivers/gpu/drm/i915/i915_gpu_error.c                 | 2 +-
 11 files changed, 16 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
index dcf60a8c229e..2154cdee4ab3 100644
--- a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
+++ b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
@@ -1039,8 +1039,7 @@ static int __igt_write_huge(struct i915_gem_context *ctx,
 			    u64 size, u64 offset,
 			    u32 dword, u32 val)
 {
-	struct drm_i915_private *i915 = to_i915(obj->base.dev);
-	struct i915_address_space *vm = ctx->vm ?: &i915->ggtt.vm;
+	struct i915_address_space *vm = ctx->vm ?: &engine->gt->ggtt->vm;
 	unsigned int flags = PIN_USER | PIN_OFFSET_FIXED;
 	struct i915_vma *vma;
 	int err;
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
index 03ac5003abf1..a2da3669e206 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
@@ -241,8 +241,7 @@ static int gpu_fill(struct drm_i915_gem_object *obj,
 		    struct intel_engine_cs *engine,
 		    unsigned int dw)
 {
-	struct drm_i915_private *i915 = to_i915(obj->base.dev);
-	struct i915_address_space *vm = ctx->vm ?: &i915->ggtt.vm;
+	struct i915_address_space *vm = ctx->vm ?: &engine->gt->ggtt->vm;
 	struct i915_request *rq;
 	struct i915_vma *vma;
 	struct i915_vma *batch;
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 29ec9aaaf1c7..f34797e11a70 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -580,7 +580,7 @@ static int init_status_page(struct intel_engine_cs *engine)
 
 	i915_gem_object_set_cache_coherency(obj, I915_CACHE_LLC);
 
-	vma = i915_vma_instance(obj, &engine->i915->ggtt.vm, NULL);
+	vma = i915_vma_instance(obj, &engine->gt->ggtt->vm, NULL);
 	if (IS_ERR(vma)) {
 		ret = PTR_ERR(vma);
 		goto err;
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index c400c66d0ee5..199273de498c 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -1879,7 +1879,7 @@ static int lrc_setup_wa_ctx(struct intel_engine_cs *engine)
 	if (IS_ERR(obj))
 		return PTR_ERR(obj);
 
-	vma = i915_vma_instance(obj, &engine->i915->ggtt.vm, NULL);
+	vma = i915_vma_instance(obj, &engine->gt->ggtt->vm, NULL);
 	if (IS_ERR(vma)) {
 		err = PTR_ERR(vma);
 		goto err;
@@ -2970,7 +2970,7 @@ static int execlists_context_deferred_alloc(struct intel_context *ce,
 	if (IS_ERR(ctx_obj))
 		return PTR_ERR(ctx_obj);
 
-	vma = i915_vma_instance(ctx_obj, &engine->i915->ggtt.vm, NULL);
+	vma = i915_vma_instance(ctx_obj, &engine->gt->ggtt->vm, NULL);
 	if (IS_ERR(vma)) {
 		ret = PTR_ERR(vma);
 		goto error_deref_obj;
diff --git a/drivers/gpu/drm/i915/gt/intel_ringbuffer.c b/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
index e6bb4bfd022f..a878bb214a62 100644
--- a/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
@@ -1405,7 +1405,7 @@ alloc_context_vma(struct intel_engine_cs *engine)
 		i915_gem_object_unpin_map(obj);
 	}
 
-	vma = i915_vma_instance(obj, &i915->ggtt.vm, NULL);
+	vma = i915_vma_instance(obj, &engine->gt->ggtt->vm, NULL);
 	if (IS_ERR(vma)) {
 		err = PTR_ERR(vma);
 		goto err_obj;
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 0b3308e39a17..c9e929285bc8 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -1369,7 +1369,7 @@ static int engine_wa_list_verify(struct intel_context *ce,
 	if (!wal->count)
 		return 0;
 
-	vma = create_scratch(&ce->engine->i915->ggtt.vm, wal->count);
+	vma = create_scratch(&ce->engine->gt->ggtt->vm, wal->count);
 	if (IS_ERR(vma))
 		return PTR_ERR(vma);
 
diff --git a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
index 8577baa050fb..a2eb4c83472e 100644
--- a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
+++ b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
@@ -130,7 +130,7 @@ static struct i915_request *
 hang_create_request(struct hang *h, struct intel_engine_cs *engine)
 {
 	struct drm_i915_private *i915 = h->i915;
-	struct i915_address_space *vm = h->ctx->vm ?: &i915->ggtt.vm;
+	struct i915_address_space *vm = h->ctx->vm ?: &engine->gt->ggtt->vm;
 	struct i915_request *rq = NULL;
 	struct i915_vma *hws, *vma;
 	unsigned int flags;
@@ -143,12 +143,12 @@ hang_create_request(struct hang *h, struct intel_engine_cs *engine)
 		struct drm_i915_gem_object *obj;
 		void *vaddr;
 
-		obj = i915_gem_object_create_internal(h->i915, PAGE_SIZE);
+		obj = i915_gem_object_create_internal(i915, PAGE_SIZE);
 		if (IS_ERR(obj))
 			return ERR_CAST(obj);
 
 		vaddr = i915_gem_object_pin_map(obj,
-						i915_coherent_map_type(h->i915));
+						i915_coherent_map_type(i915));
 		if (IS_ERR(vaddr)) {
 			i915_gem_object_put(obj);
 			return ERR_CAST(vaddr);
@@ -255,7 +255,7 @@ hang_create_request(struct hang *h, struct intel_engine_cs *engine)
 	}
 
 	flags = 0;
-	if (INTEL_GEN(vm->i915) <= 5)
+	if (INTEL_GEN(i915) <= 5)
 		flags |= I915_DISPATCH_SECURE;
 
 	err = rq->engine->emit_bb_start(rq, vma->node.start, PAGE_SIZE, flags);
diff --git a/drivers/gpu/drm/i915/gt/selftest_workarounds.c b/drivers/gpu/drm/i915/gt/selftest_workarounds.c
index 4db929645e5b..905c1726975d 100644
--- a/drivers/gpu/drm/i915/gt/selftest_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/selftest_workarounds.c
@@ -103,7 +103,7 @@ read_nonprivs(struct i915_gem_context *ctx, struct intel_engine_cs *engine)
 	i915_gem_object_flush_map(result);
 	i915_gem_object_unpin_map(result);
 
-	vma = i915_vma_instance(result, &engine->i915->ggtt.vm, NULL);
+	vma = i915_vma_instance(result, &engine->gt->ggtt->vm, NULL);
 	if (IS_ERR(vma)) {
 		err = PTR_ERR(vma);
 		goto err_obj;
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index bfb9767237bf..ccb2ef3a70e1 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1873,7 +1873,7 @@ static int gen6_alloc_va_range(struct i915_address_space *vm,
 
 	if (flush) {
 		mark_tlbs_dirty(&ppgtt->base);
-		gen6_ggtt_invalidate(&vm->i915->ggtt);
+		gen6_ggtt_invalidate(vm->gt->ggtt);
 	}
 
 	intel_runtime_pm_put(&vm->i915->runtime_pm, wakeref);
@@ -2059,7 +2059,7 @@ static const struct i915_vma_ops pd_vma_ops = {
 static struct i915_vma *pd_vma_create(struct gen6_ppgtt *ppgtt, int size)
 {
 	struct drm_i915_private *i915 = ppgtt->base.vm.i915;
-	struct i915_ggtt *ggtt = &i915->ggtt;
+	struct i915_ggtt *ggtt = ppgtt->base.vm.gt->ggtt;
 	struct i915_vma *vma;
 
 	GEM_BUG_ON(!IS_ALIGNED(size, I915_GTT_PAGE_SIZE));
diff --git a/drivers/gpu/drm/i915/i915_gem_render_state.c b/drivers/gpu/drm/i915/i915_gem_render_state.c
index 4ee032072d4f..6bda08c1e8d7 100644
--- a/drivers/gpu/drm/i915/i915_gem_render_state.c
+++ b/drivers/gpu/drm/i915/i915_gem_render_state.c
@@ -194,7 +194,7 @@ int i915_gem_render_state_emit(struct i915_request *rq)
 	if (IS_ERR(so.obj))
 		return PTR_ERR(so.obj);
 
-	so.vma = i915_vma_instance(so.obj, &engine->i915->ggtt.vm, NULL);
+	so.vma = i915_vma_instance(so.obj, &engine->gt->ggtt->vm, NULL);
 	if (IS_ERR(so.vma)) {
 		err = PTR_ERR(so.vma);
 		goto err_obj;
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index f411e3244208..c40799fad2cd 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1409,12 +1409,12 @@ capture_object(struct drm_i915_private *dev_priv,
 static void gem_record_rings(struct i915_gpu_state *error)
 {
 	struct drm_i915_private *i915 = error->i915;
-	struct i915_ggtt *ggtt = &i915->ggtt;
 	int i;
 
 	for (i = 0; i < I915_NUM_ENGINES; i++) {
 		struct intel_engine_cs *engine = i915->engine[i];
 		struct drm_i915_error_engine *ee = &error->engine[i];
+		struct i915_ggtt *ggtt = engine->gt->ggtt;
 		struct i915_request *request;
 
 		ee->engine_id = -1;
-- 
2.20.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[RFC 31/33] drm/i915: Make timelines gt centric

[Tvrtko Ursulin]

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

Our timelines are stored inside intel_gt so we can convert the interface
to take exactly that and not i915.

At the same time re-order the params to our more typical layout and
replace the backpointer to the new containing structure.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gem/i915_gem_context.c   |  2 +-
 drivers/gpu/drm/i915/gt/intel_engine_cs.c     |  4 +-
 drivers/gpu/drm/i915/gt/intel_lrc.c           |  7 +--
 drivers/gpu/drm/i915/gt/intel_ringbuffer.c    |  2 +-
 drivers/gpu/drm/i915/gt/mock_engine.c         |  2 +-
 drivers/gpu/drm/i915/i915_timeline.c          | 43 +++++++++----------
 drivers/gpu/drm/i915/i915_timeline.h          |  7 ++-
 drivers/gpu/drm/i915/i915_timeline_types.h    |  2 +-
 .../gpu/drm/i915/selftests/i915_timeline.c    |  8 ++--
 .../gpu/drm/i915/selftests/mock_timeline.c    |  2 +-
 10 files changed, 38 insertions(+), 41 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
index 6200060aef05..907ea1d87af9 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
@@ -530,7 +530,7 @@ i915_gem_create_context(struct drm_i915_private *dev_priv, unsigned int flags)
 	if (flags & I915_CONTEXT_CREATE_FLAGS_SINGLE_TIMELINE) {
 		struct i915_timeline *timeline;
 
-		timeline = i915_timeline_create(dev_priv, NULL);
+		timeline = i915_timeline_create(&dev_priv->gt, NULL);
 		if (IS_ERR(timeline)) {
 			context_close(ctx);
 			return ERR_CAST(timeline);
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index f34797e11a70..c2afc8d34aa2 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -736,8 +736,8 @@ static int measure_breadcrumb_dw(struct intel_engine_cs *engine)
 	if (!frame)
 		return -ENOMEM;
 
-	if (i915_timeline_init(engine->i915,
-			       &frame->timeline,
+	if (i915_timeline_init(&frame->timeline,
+			       engine->gt,
 			       engine->status_page.vma))
 		goto out_frame;
 
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 199273de498c..20f07dbf5be9 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -2937,12 +2937,13 @@ populate_lr_context(struct intel_context *ce,
 	return ret;
 }
 
-static struct i915_timeline *get_timeline(struct i915_gem_context *ctx)
+static struct i915_timeline *
+get_timeline(struct i915_gem_context *ctx, struct intel_gt *gt)
 {
 	if (ctx->timeline)
 		return i915_timeline_get(ctx->timeline);
 	else
-		return i915_timeline_create(ctx->i915, NULL);
+		return i915_timeline_create(gt, NULL);
 }
 
 static int execlists_context_deferred_alloc(struct intel_context *ce,
@@ -2976,7 +2977,7 @@ static int execlists_context_deferred_alloc(struct intel_context *ce,
 		goto error_deref_obj;
 	}
 
-	timeline = get_timeline(ce->gem_context);
+	timeline = get_timeline(ce->gem_context, engine->gt);
 	if (IS_ERR(timeline)) {
 		ret = PTR_ERR(timeline);
 		goto error_deref_obj;
diff --git a/drivers/gpu/drm/i915/gt/intel_ringbuffer.c b/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
index a878bb214a62..334841ffbb27 100644
--- a/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
@@ -2263,7 +2263,7 @@ int intel_ring_submission_init(struct intel_engine_cs *engine)
 	struct intel_ring *ring;
 	int err;
 
-	timeline = i915_timeline_create(engine->i915, engine->status_page.vma);
+	timeline = i915_timeline_create(engine->gt, engine->status_page.vma);
 	if (IS_ERR(timeline)) {
 		err = PTR_ERR(timeline);
 		goto err;
diff --git a/drivers/gpu/drm/i915/gt/mock_engine.c b/drivers/gpu/drm/i915/gt/mock_engine.c
index 086801b51441..b80ec0f53111 100644
--- a/drivers/gpu/drm/i915/gt/mock_engine.c
+++ b/drivers/gpu/drm/i915/gt/mock_engine.c
@@ -56,7 +56,7 @@ static struct intel_ring *mock_ring(struct intel_engine_cs *engine)
 	if (!ring)
 		return NULL;
 
-	if (i915_timeline_init(engine->i915, &ring->timeline, NULL)) {
+	if (i915_timeline_init(&ring->timeline, engine->gt, NULL)) {
 		kfree(ring);
 		return NULL;
 	}
diff --git a/drivers/gpu/drm/i915/i915_timeline.c b/drivers/gpu/drm/i915/i915_timeline.c
index dc885a13b16d..3e2c3169dc69 100644
--- a/drivers/gpu/drm/i915/i915_timeline.c
+++ b/drivers/gpu/drm/i915/i915_timeline.c
@@ -4,6 +4,8 @@
  * Copyright © 2016-2018 Intel Corporation
  */
 
+#include "gt/intel_gt_types.h"
+
 #include "i915_drv.h"
 
 #include "i915_active.h"
@@ -14,7 +16,8 @@
 #define ptr_test_bit(ptr, bit) ((unsigned long)(ptr) & BIT(bit))
 
 struct i915_timeline_hwsp {
-	struct i915_gt_timelines *gt;
+	struct intel_gt *gt;
+	struct i915_gt_timelines *gt_timelines;
 	struct list_head free_link;
 	struct i915_vma *vma;
 	u64 free_bitmap;
@@ -28,14 +31,9 @@ struct i915_timeline_cacheline {
 #define CACHELINE_FREE CACHELINE_BITS
 };
 
-static inline struct drm_i915_private *
-hwsp_to_i915(struct i915_timeline_hwsp *hwsp)
-{
-	return container_of(hwsp->gt, struct drm_i915_private, gt.timelines);
-}
-
-static struct i915_vma *__hwsp_alloc(struct drm_i915_private *i915)
+static struct i915_vma *__hwsp_alloc(struct intel_gt *gt)
 {
+	struct drm_i915_private *i915 = gt->i915;
 	struct drm_i915_gem_object *obj;
 	struct i915_vma *vma;
 
@@ -45,7 +43,7 @@ static struct i915_vma *__hwsp_alloc(struct drm_i915_private *i915)
 
 	i915_gem_object_set_cache_coherency(obj, I915_CACHE_LLC);
 
-	vma = i915_vma_instance(obj, &i915->ggtt.vm, NULL);
+	vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL);
 	if (IS_ERR(vma))
 		i915_gem_object_put(obj);
 
@@ -55,8 +53,7 @@ static struct i915_vma *__hwsp_alloc(struct drm_i915_private *i915)
 static struct i915_vma *
 hwsp_alloc(struct i915_timeline *timeline, unsigned int *cacheline)
 {
-	struct drm_i915_private *i915 = timeline->i915;
-	struct i915_gt_timelines *gt = &i915->gt.timelines;
+	struct i915_gt_timelines *gt = &timeline->gt->timelines;
 	struct i915_timeline_hwsp *hwsp;
 
 	BUILD_BUG_ON(BITS_PER_TYPE(u64) * CACHELINE_BYTES > PAGE_SIZE);
@@ -75,16 +72,17 @@ hwsp_alloc(struct i915_timeline *timeline, unsigned int *cacheline)
 		if (!hwsp)
 			return ERR_PTR(-ENOMEM);
 
-		vma = __hwsp_alloc(i915);
+		vma = __hwsp_alloc(timeline->gt);
 		if (IS_ERR(vma)) {
 			kfree(hwsp);
 			return vma;
 		}
 
 		vma->private = hwsp;
+		hwsp->gt = timeline->gt;
 		hwsp->vma = vma;
 		hwsp->free_bitmap = ~0ull;
-		hwsp->gt = gt;
+		hwsp->gt_timelines = gt;
 
 		spin_lock_irq(&gt->hwsp_lock);
 		list_add(&hwsp->free_link, &gt->hwsp_free_list);
@@ -104,7 +102,7 @@ hwsp_alloc(struct i915_timeline *timeline, unsigned int *cacheline)
 
 static void __idle_hwsp_free(struct i915_timeline_hwsp *hwsp, int cacheline)
 {
-	struct i915_gt_timelines *gt = hwsp->gt;
+	struct i915_gt_timelines *gt = hwsp->gt_timelines;
 	unsigned long flags;
 
 	spin_lock_irqsave(&gt->hwsp_lock, flags);
@@ -170,7 +168,7 @@ cacheline_alloc(struct i915_timeline_hwsp *hwsp, unsigned int cacheline)
 	cl->hwsp = hwsp;
 	cl->vaddr = page_pack_bits(vaddr, cacheline);
 
-	i915_active_init(hwsp_to_i915(hwsp), &cl->active, __cacheline_retire);
+	i915_active_init(hwsp->gt->i915, &cl->active, __cacheline_retire);
 
 	return cl;
 }
@@ -196,8 +194,8 @@ static void cacheline_free(struct i915_timeline_cacheline *cl)
 		__idle_cacheline_free(cl);
 }
 
-int i915_timeline_init(struct drm_i915_private *i915,
-		       struct i915_timeline *timeline,
+int i915_timeline_init(struct i915_timeline *timeline,
+		       struct intel_gt *gt,
 		       struct i915_vma *hwsp)
 {
 	void *vaddr;
@@ -212,7 +210,7 @@ int i915_timeline_init(struct drm_i915_private *i915,
 	 */
 	BUILD_BUG_ON(KSYNCMAP < I915_NUM_ENGINES);
 
-	timeline->i915 = i915;
+	timeline->gt = gt;
 	timeline->pin_count = 0;
 	timeline->has_initial_breadcrumb = !hwsp;
 	timeline->hwsp_cacheline = NULL;
@@ -282,7 +280,7 @@ void i915_timelines_init(struct drm_i915_private *i915)
 
 static void timeline_add_to_active(struct i915_timeline *tl)
 {
-	struct i915_gt_timelines *gt = &tl->i915->gt.timelines;
+	struct i915_gt_timelines *gt = &tl->gt->timelines;
 
 	mutex_lock(&gt->mutex);
 	list_add(&tl->link, &gt->active_list);
@@ -291,7 +289,7 @@ static void timeline_add_to_active(struct i915_timeline *tl)
 
 static void timeline_remove_from_active(struct i915_timeline *tl)
 {
-	struct i915_gt_timelines *gt = &tl->i915->gt.timelines;
+	struct i915_gt_timelines *gt = &tl->gt->timelines;
 
 	mutex_lock(&gt->mutex);
 	list_del(&tl->link);
@@ -347,8 +345,7 @@ void i915_timeline_fini(struct i915_timeline *timeline)
 }
 
 struct i915_timeline *
-i915_timeline_create(struct drm_i915_private *i915,
-		     struct i915_vma *global_hwsp)
+i915_timeline_create(struct intel_gt *gt, struct i915_vma *global_hwsp)
 {
 	struct i915_timeline *timeline;
 	int err;
@@ -357,7 +354,7 @@ i915_timeline_create(struct drm_i915_private *i915,
 	if (!timeline)
 		return ERR_PTR(-ENOMEM);
 
-	err = i915_timeline_init(i915, timeline, global_hwsp);
+	err = i915_timeline_init(timeline, gt, global_hwsp);
 	if (err) {
 		kfree(timeline);
 		return ERR_PTR(err);
diff --git a/drivers/gpu/drm/i915/i915_timeline.h b/drivers/gpu/drm/i915/i915_timeline.h
index 36e5e5a65155..a454d49f229f 100644
--- a/drivers/gpu/drm/i915/i915_timeline.h
+++ b/drivers/gpu/drm/i915/i915_timeline.h
@@ -31,14 +31,13 @@
 #include "i915_syncmap.h"
 #include "i915_timeline_types.h"
 
-int i915_timeline_init(struct drm_i915_private *i915,
-		       struct i915_timeline *tl,
+int i915_timeline_init(struct i915_timeline *tl,
+		       struct intel_gt *gt,
 		       struct i915_vma *hwsp);
 void i915_timeline_fini(struct i915_timeline *tl);
 
 struct i915_timeline *
-i915_timeline_create(struct drm_i915_private *i915,
-		     struct i915_vma *global_hwsp);
+i915_timeline_create(struct intel_gt *gt, struct i915_vma *global_hwsp);
 
 static inline struct i915_timeline *
 i915_timeline_get(struct i915_timeline *timeline)
diff --git a/drivers/gpu/drm/i915/i915_timeline_types.h b/drivers/gpu/drm/i915/i915_timeline_types.h
index fce5cb4f1090..931585e12d41 100644
--- a/drivers/gpu/drm/i915/i915_timeline_types.h
+++ b/drivers/gpu/drm/i915/i915_timeline_types.h
@@ -59,7 +59,7 @@ struct i915_timeline {
 	struct i915_syncmap *sync;
 
 	struct list_head link;
-	struct drm_i915_private *i915;
+	struct intel_gt *gt;
 
 	struct kref kref;
 };
diff --git a/drivers/gpu/drm/i915/selftests/i915_timeline.c b/drivers/gpu/drm/i915/selftests/i915_timeline.c
index 724bf3650b3e..9eb4e9ab8557 100644
--- a/drivers/gpu/drm/i915/selftests/i915_timeline.c
+++ b/drivers/gpu/drm/i915/selftests/i915_timeline.c
@@ -66,7 +66,7 @@ static int __mock_hwsp_timeline(struct mock_hwsp_freelist *state,
 		unsigned long cacheline;
 		int err;
 
-		tl = i915_timeline_create(state->i915, NULL);
+		tl = i915_timeline_create(&state->i915->gt, NULL);
 		if (IS_ERR(tl))
 			return PTR_ERR(tl);
 
@@ -448,7 +448,7 @@ tl_write(struct i915_timeline *tl, struct intel_engine_cs *engine, u32 value)
 	struct i915_request *rq;
 	int err;
 
-	lockdep_assert_held(&tl->i915->drm.struct_mutex); /* lazy rq refs */
+	lockdep_assert_held(&tl->gt->i915->drm.struct_mutex); /* lazy rq refs */
 
 	err = i915_timeline_pin(tl);
 	if (err) {
@@ -478,7 +478,7 @@ checked_i915_timeline_create(struct drm_i915_private *i915)
 {
 	struct i915_timeline *tl;
 
-	tl = i915_timeline_create(i915, NULL);
+	tl = i915_timeline_create(&i915->gt, NULL);
 	if (IS_ERR(tl))
 		return tl;
 
@@ -660,7 +660,7 @@ static int live_hwsp_wrap(void *arg)
 	mutex_lock(&i915->drm.struct_mutex);
 	wakeref = intel_runtime_pm_get(&i915->runtime_pm);
 
-	tl = i915_timeline_create(i915, NULL);
+	tl = i915_timeline_create(&i915->gt, NULL);
 	if (IS_ERR(tl)) {
 		err = PTR_ERR(tl);
 		goto out_rpm;
diff --git a/drivers/gpu/drm/i915/selftests/mock_timeline.c b/drivers/gpu/drm/i915/selftests/mock_timeline.c
index 65b52be23d42..c80ac0fbdd3b 100644
--- a/drivers/gpu/drm/i915/selftests/mock_timeline.c
+++ b/drivers/gpu/drm/i915/selftests/mock_timeline.c
@@ -10,7 +10,7 @@
 
 void mock_timeline_init(struct i915_timeline *timeline, u64 context)
 {
-	timeline->i915 = NULL;
+	timeline->gt = NULL;
 	timeline->fence_context = context;
 
 	mutex_init(&timeline->mutex);
-- 
2.20.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[RFC 32/33] drm/i915: Rename i915_timeline to intel_timeline and move under gt

[Tvrtko Ursulin]

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

Move all timeline code under gt and rename to intel_gt prefix.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/Makefile                 |   2 +-
 drivers/gpu/drm/i915/Makefile.header-test     |   1 -
 drivers/gpu/drm/i915/gem/i915_gem_context.c   |  10 +-
 .../gpu/drm/i915/gem/i915_gem_context_types.h |   4 +-
 drivers/gpu/drm/i915/gem/i915_gem_pm.c        |   2 +-
 drivers/gpu/drm/i915/gt/intel_engine.h        |   4 +-
 drivers/gpu/drm/i915/gt/intel_engine_cs.c     |  14 +-
 drivers/gpu/drm/i915/gt/intel_engine_types.h  |   4 +-
 drivers/gpu/drm/i915/gt/intel_lrc.c           |  10 +-
 drivers/gpu/drm/i915/gt/intel_reset.c         |   2 +-
 drivers/gpu/drm/i915/gt/intel_ringbuffer.c    |  18 +--
 .../{i915_timeline.c => gt/intel_timeline.c}  | 108 ++++++++--------
 drivers/gpu/drm/i915/gt/intel_timeline.h      |  93 +++++++++++++
 .../intel_timeline_types.h}                   |   6 +-
 drivers/gpu/drm/i915/gt/mock_engine.c         |  10 +-
 .../selftest_timeline.c}                      | 122 +++++++++---------
 .../i915/{ => gt}/selftests/mock_timeline.c   |   6 +-
 .../i915/{ => gt}/selftests/mock_timeline.h   |   6 +-
 drivers/gpu/drm/i915/i915_drv.h               |   2 +-
 drivers/gpu/drm/i915/i915_gem.c               |   8 +-
 drivers/gpu/drm/i915/i915_gem_gtt.h           |   2 +-
 drivers/gpu/drm/i915/i915_request.c           |  14 +-
 drivers/gpu/drm/i915/i915_request.h           |   8 +-
 drivers/gpu/drm/i915/i915_timeline.h          |  93 -------------
 .../drm/i915/selftests/i915_live_selftests.h  |   2 +-
 .../drm/i915/selftests/i915_mock_selftests.h  |   2 +-
 .../gpu/drm/i915/selftests/mock_gem_device.c  |   6 +-
 27 files changed, 279 insertions(+), 280 deletions(-)
 rename drivers/gpu/drm/i915/{i915_timeline.c => gt/intel_timeline.c} (82%)
 create mode 100644 drivers/gpu/drm/i915/gt/intel_timeline.h
 rename drivers/gpu/drm/i915/{i915_timeline_types.h => gt/intel_timeline_types.h} (93%)
 rename drivers/gpu/drm/i915/{selftests/i915_timeline.c => gt/selftest_timeline.c} (87%)
 rename drivers/gpu/drm/i915/{ => gt}/selftests/mock_timeline.c (72%)
 rename drivers/gpu/drm/i915/{ => gt}/selftests/mock_timeline.h (53%)
 delete mode 100644 drivers/gpu/drm/i915/i915_timeline.h

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 8df1bf2855d0..f4f823275aaf 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -81,6 +81,7 @@ gt-y += \
 	gt/intel_ringbuffer.o \
 	gt/intel_mocs.o \
 	gt/intel_sseu.o \
+	gt/intel_timeline.o \
 	gt/intel_workarounds.o
 gt-$(CONFIG_DRM_I915_SELFTEST) += \
 	gt/mock_engine.o
@@ -126,7 +127,6 @@ i915-y += \
 	  i915_query.o \
 	  i915_request.o \
 	  i915_scheduler.o \
-	  i915_timeline.o \
 	  i915_trace_points.o \
 	  i915_vma.o \
 	  intel_wopcm.o
diff --git a/drivers/gpu/drm/i915/Makefile.header-test b/drivers/gpu/drm/i915/Makefile.header-test
index 6ef3b647ac65..f55346d3c27b 100644
--- a/drivers/gpu/drm/i915/Makefile.header-test
+++ b/drivers/gpu/drm/i915/Makefile.header-test
@@ -11,7 +11,6 @@ header_test := \
 	i915_priolist_types.h \
 	i915_reg.h \
 	i915_scheduler_types.h \
-	i915_timeline_types.h \
 	i915_utils.h \
 	intel_acpi.h \
 	intel_atomic.h \
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
index 907ea1d87af9..9d331f82f366 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
@@ -316,7 +316,7 @@ static void i915_gem_context_free(struct i915_gem_context *ctx)
 	mutex_destroy(&ctx->engines_mutex);
 
 	if (ctx->timeline)
-		i915_timeline_put(ctx->timeline);
+		intel_timeline_put(ctx->timeline);
 
 	kfree(ctx->name);
 	put_pid(ctx->pid);
@@ -528,9 +528,9 @@ i915_gem_create_context(struct drm_i915_private *dev_priv, unsigned int flags)
 	}
 
 	if (flags & I915_CONTEXT_CREATE_FLAGS_SINGLE_TIMELINE) {
-		struct i915_timeline *timeline;
+		struct intel_timeline *timeline;
 
-		timeline = i915_timeline_create(&dev_priv->gt, NULL);
+		timeline = intel_timeline_create(&dev_priv->gt, NULL);
 		if (IS_ERR(timeline)) {
 			context_close(ctx);
 			return ERR_CAST(timeline);
@@ -2015,8 +2015,8 @@ static int clone_timeline(struct i915_gem_context *dst,
 		GEM_BUG_ON(src->timeline == dst->timeline);
 
 		if (dst->timeline)
-			i915_timeline_put(dst->timeline);
-		dst->timeline = i915_timeline_get(src->timeline);
+			intel_timeline_put(dst->timeline);
+		dst->timeline = intel_timeline_get(src->timeline);
 	}
 
 	return 0;
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context_types.h b/drivers/gpu/drm/i915/gem/i915_gem_context_types.h
index cc513410eeef..0ee61482ef94 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_context_types.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context_types.h
@@ -26,7 +26,7 @@ struct pid;
 struct drm_i915_private;
 struct drm_i915_file_private;
 struct i915_address_space;
-struct i915_timeline;
+struct intel_timeline;
 struct intel_ring;
 
 struct i915_gem_engines {
@@ -77,7 +77,7 @@ struct i915_gem_context {
 	struct i915_gem_engines __rcu *engines;
 	struct mutex engines_mutex; /* guards writes to engines */
 
-	struct i915_timeline *timeline;
+	struct intel_timeline *timeline;
 
 	/**
 	 * @vm: unique address space (GTT)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pm.c b/drivers/gpu/drm/i915/gem/i915_gem_pm.c
index 05011d4a3b88..8f721cf0ab99 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_pm.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_pm.c
@@ -38,7 +38,7 @@ static void i915_gem_park(struct drm_i915_private *i915)
 		i915_gem_batch_pool_fini(&engine->batch_pool);
 	}
 
-	i915_timelines_park(i915);
+	intel_timelines_park(i915);
 	i915_vma_parked(i915);
 
 	i915_globals_park();
diff --git a/drivers/gpu/drm/i915/gt/intel_engine.h b/drivers/gpu/drm/i915/gt/intel_engine.h
index 2f1c6871ee95..fa55164b09ee 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine.h
@@ -14,7 +14,7 @@
 #include "i915_reg.h"
 #include "i915_request.h"
 #include "i915_selftest.h"
-#include "i915_timeline.h"
+#include "gt/intel_timeline.h"
 #include "intel_engine_types.h"
 #include "intel_gpu_commands.h"
 #include "intel_workarounds.h"
@@ -245,7 +245,7 @@ intel_write_status_page(struct intel_engine_cs *engine, int reg, u32 value)
 
 struct intel_ring *
 intel_engine_create_ring(struct intel_engine_cs *engine,
-			 struct i915_timeline *timeline,
+			 struct intel_timeline *timeline,
 			 int size);
 int intel_ring_pin(struct intel_ring *ring);
 void intel_ring_reset(struct intel_ring *ring, u32 tail);
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index c2afc8d34aa2..90c65269eadd 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -720,7 +720,7 @@ void intel_engines_set_scheduler_caps(struct drm_i915_private *i915)
 
 struct measure_breadcrumb {
 	struct i915_request rq;
-	struct i915_timeline timeline;
+	struct intel_timeline timeline;
 	struct intel_ring ring;
 	u32 cs[1024];
 };
@@ -736,9 +736,9 @@ static int measure_breadcrumb_dw(struct intel_engine_cs *engine)
 	if (!frame)
 		return -ENOMEM;
 
-	if (i915_timeline_init(&frame->timeline,
-			       engine->gt,
-			       engine->status_page.vma))
+	if (intel_timeline_init(&frame->timeline,
+				engine->gt,
+				engine->status_page.vma))
 		goto out_frame;
 
 	INIT_LIST_HEAD(&frame->ring.request_list);
@@ -753,17 +753,17 @@ static int measure_breadcrumb_dw(struct intel_engine_cs *engine)
 	frame->rq.ring = &frame->ring;
 	frame->rq.timeline = &frame->timeline;
 
-	dw = i915_timeline_pin(&frame->timeline);
+	dw = intel_timeline_pin(&frame->timeline);
 	if (dw < 0)
 		goto out_timeline;
 
 	dw = engine->emit_fini_breadcrumb(&frame->rq, frame->cs) - frame->cs;
 	GEM_BUG_ON(dw & 1); /* RING_TAIL must be qword aligned */
 
-	i915_timeline_unpin(&frame->timeline);
+	intel_timeline_unpin(&frame->timeline);
 
 out_timeline:
-	i915_timeline_fini(&frame->timeline);
+	intel_timeline_fini(&frame->timeline);
 out_frame:
 	kfree(frame);
 	return dw;
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h
index 7a3f1f43567d..46a233fdeb7a 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
@@ -19,7 +19,7 @@
 #include "i915_pmu.h"
 #include "i915_priolist_types.h"
 #include "i915_selftest.h"
-#include "i915_timeline_types.h"
+#include "gt/intel_timeline_types.h"
 #include "intel_sseu.h"
 #include "intel_wakeref.h"
 #include "intel_workarounds_types.h"
@@ -67,7 +67,7 @@ struct intel_ring {
 	struct i915_vma *vma;
 	void *vaddr;
 
-	struct i915_timeline *timeline;
+	struct intel_timeline *timeline;
 	struct list_head request_list;
 	struct list_head active_link;
 
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 20f07dbf5be9..7cc3ab38768f 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -2937,13 +2937,13 @@ populate_lr_context(struct intel_context *ce,
 	return ret;
 }
 
-static struct i915_timeline *
+static struct intel_timeline *
 get_timeline(struct i915_gem_context *ctx, struct intel_gt *gt)
 {
 	if (ctx->timeline)
-		return i915_timeline_get(ctx->timeline);
+		return intel_timeline_get(ctx->timeline);
 	else
-		return i915_timeline_create(gt, NULL);
+		return intel_timeline_create(gt, NULL);
 }
 
 static int execlists_context_deferred_alloc(struct intel_context *ce,
@@ -2953,7 +2953,7 @@ static int execlists_context_deferred_alloc(struct intel_context *ce,
 	struct i915_vma *vma;
 	u32 context_size;
 	struct intel_ring *ring;
-	struct i915_timeline *timeline;
+	struct intel_timeline *timeline;
 	int ret;
 
 	if (ce->state)
@@ -2986,7 +2986,7 @@ static int execlists_context_deferred_alloc(struct intel_context *ce,
 	ring = intel_engine_create_ring(engine,
 					timeline,
 					ce->gem_context->ring_size);
-	i915_timeline_put(timeline);
+	intel_timeline_put(timeline);
 	if (IS_ERR(ring)) {
 		ret = PTR_ERR(ring);
 		goto error_deref_obj;
diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c b/drivers/gpu/drm/i915/gt/intel_reset.c
index a70c59390bf4..acdb418ea8db 100644
--- a/drivers/gpu/drm/i915/gt/intel_reset.c
+++ b/drivers/gpu/drm/i915/gt/intel_reset.c
@@ -850,7 +850,7 @@ void i915_gem_set_wedged(struct drm_i915_private *i915)
 static bool __i915_gem_unset_wedged(struct drm_i915_private *i915)
 {
 	struct i915_gpu_error *error = &i915->gpu_error;
-	struct i915_timeline *tl;
+	struct intel_timeline *tl;
 
 	if (!test_bit(I915_WEDGED, &error->flags))
 		return true;
diff --git a/drivers/gpu/drm/i915/gt/intel_ringbuffer.c b/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
index 334841ffbb27..15d2ac9ea020 100644
--- a/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
@@ -1156,7 +1156,7 @@ int intel_ring_pin(struct intel_ring *ring)
 
 	GEM_BUG_ON(ring->vaddr);
 
-	ret = i915_timeline_pin(ring->timeline);
+	ret = intel_timeline_pin(ring->timeline);
 	if (ret)
 		return ret;
 
@@ -1191,7 +1191,7 @@ int intel_ring_pin(struct intel_ring *ring)
 unpin_ring:
 	i915_vma_unpin(vma);
 unpin_timeline:
-	i915_timeline_unpin(ring->timeline);
+	intel_timeline_unpin(ring->timeline);
 	return ret;
 }
 
@@ -1222,7 +1222,7 @@ void intel_ring_unpin(struct intel_ring *ring)
 	ring->vma->obj->pin_global--;
 	i915_vma_unpin(ring->vma);
 
-	i915_timeline_unpin(ring->timeline);
+	intel_timeline_unpin(ring->timeline);
 }
 
 static struct i915_vma *create_ring_vma(struct i915_ggtt *ggtt, int size)
@@ -1258,7 +1258,7 @@ static struct i915_vma *create_ring_vma(struct i915_ggtt *ggtt, int size)
 
 struct intel_ring *
 intel_engine_create_ring(struct intel_engine_cs *engine,
-			 struct i915_timeline *timeline,
+			 struct intel_timeline *timeline,
 			 int size)
 {
 	struct drm_i915_private *i915 = engine->i915;
@@ -1274,7 +1274,7 @@ intel_engine_create_ring(struct intel_engine_cs *engine,
 
 	kref_init(&ring->ref);
 	INIT_LIST_HEAD(&ring->request_list);
-	ring->timeline = i915_timeline_get(timeline);
+	ring->timeline = intel_timeline_get(timeline);
 
 	ring->size = size;
 	/* Workaround an erratum on the i830 which causes a hang if
@@ -1304,7 +1304,7 @@ void intel_ring_free(struct kref *ref)
 	i915_vma_close(ring->vma);
 	i915_vma_put(ring->vma);
 
-	i915_timeline_put(ring->timeline);
+	intel_timeline_put(ring->timeline);
 	kfree(ring);
 }
 
@@ -2259,11 +2259,11 @@ int intel_ring_submission_setup(struct intel_engine_cs *engine)
 
 int intel_ring_submission_init(struct intel_engine_cs *engine)
 {
-	struct i915_timeline *timeline;
+	struct intel_timeline *timeline;
 	struct intel_ring *ring;
 	int err;
 
-	timeline = i915_timeline_create(engine->gt, engine->status_page.vma);
+	timeline = intel_timeline_create(engine->gt, engine->status_page.vma);
 	if (IS_ERR(timeline)) {
 		err = PTR_ERR(timeline);
 		goto err;
@@ -2271,7 +2271,7 @@ int intel_ring_submission_init(struct intel_engine_cs *engine)
 	GEM_BUG_ON(timeline->has_initial_breadcrumb);
 
 	ring = intel_engine_create_ring(engine, timeline, 32 * PAGE_SIZE);
-	i915_timeline_put(timeline);
+	intel_timeline_put(timeline);
 	if (IS_ERR(ring)) {
 		err = PTR_ERR(ring);
 		goto err;
diff --git a/drivers/gpu/drm/i915/i915_timeline.c b/drivers/gpu/drm/i915/gt/intel_timeline.c
similarity index 82%
rename from drivers/gpu/drm/i915/i915_timeline.c
rename to drivers/gpu/drm/i915/gt/intel_timeline.c
index 3e2c3169dc69..1a3f04458730 100644
--- a/drivers/gpu/drm/i915/i915_timeline.c
+++ b/drivers/gpu/drm/i915/gt/intel_timeline.c
@@ -10,12 +10,12 @@
 
 #include "i915_active.h"
 #include "i915_syncmap.h"
-#include "i915_timeline.h"
+#include "gt/intel_timeline.h"
 
 #define ptr_set_bit(ptr, bit) ((typeof(ptr))((unsigned long)(ptr) | BIT(bit)))
 #define ptr_test_bit(ptr, bit) ((unsigned long)(ptr) & BIT(bit))
 
-struct i915_timeline_hwsp {
+struct intel_timeline_hwsp {
 	struct intel_gt *gt;
 	struct i915_gt_timelines *gt_timelines;
 	struct list_head free_link;
@@ -23,9 +23,9 @@ struct i915_timeline_hwsp {
 	u64 free_bitmap;
 };
 
-struct i915_timeline_cacheline {
+struct intel_timeline_cacheline {
 	struct i915_active active;
-	struct i915_timeline_hwsp *hwsp;
+	struct intel_timeline_hwsp *hwsp;
 	void *vaddr;
 #define CACHELINE_BITS 6
 #define CACHELINE_FREE CACHELINE_BITS
@@ -51,10 +51,10 @@ static struct i915_vma *__hwsp_alloc(struct intel_gt *gt)
 }
 
 static struct i915_vma *
-hwsp_alloc(struct i915_timeline *timeline, unsigned int *cacheline)
+hwsp_alloc(struct intel_timeline *timeline, unsigned int *cacheline)
 {
 	struct i915_gt_timelines *gt = &timeline->gt->timelines;
-	struct i915_timeline_hwsp *hwsp;
+	struct intel_timeline_hwsp *hwsp;
 
 	BUILD_BUG_ON(BITS_PER_TYPE(u64) * CACHELINE_BYTES > PAGE_SIZE);
 
@@ -100,7 +100,7 @@ hwsp_alloc(struct i915_timeline *timeline, unsigned int *cacheline)
 	return hwsp->vma;
 }
 
-static void __idle_hwsp_free(struct i915_timeline_hwsp *hwsp, int cacheline)
+static void __idle_hwsp_free(struct intel_timeline_hwsp *hwsp, int cacheline)
 {
 	struct i915_gt_timelines *gt = hwsp->gt_timelines;
 	unsigned long flags;
@@ -124,7 +124,7 @@ static void __idle_hwsp_free(struct i915_timeline_hwsp *hwsp, int cacheline)
 	spin_unlock_irqrestore(&gt->hwsp_lock, flags);
 }
 
-static void __idle_cacheline_free(struct i915_timeline_cacheline *cl)
+static void __idle_cacheline_free(struct intel_timeline_cacheline *cl)
 {
 	GEM_BUG_ON(!i915_active_is_idle(&cl->active));
 
@@ -138,7 +138,7 @@ static void __idle_cacheline_free(struct i915_timeline_cacheline *cl)
 
 static void __cacheline_retire(struct i915_active *active)
 {
-	struct i915_timeline_cacheline *cl =
+	struct intel_timeline_cacheline *cl =
 		container_of(active, typeof(*cl), active);
 
 	i915_vma_unpin(cl->hwsp->vma);
@@ -146,10 +146,10 @@ static void __cacheline_retire(struct i915_active *active)
 		__idle_cacheline_free(cl);
 }
 
-static struct i915_timeline_cacheline *
-cacheline_alloc(struct i915_timeline_hwsp *hwsp, unsigned int cacheline)
+static struct intel_timeline_cacheline *
+cacheline_alloc(struct intel_timeline_hwsp *hwsp, unsigned int cacheline)
 {
-	struct i915_timeline_cacheline *cl;
+	struct intel_timeline_cacheline *cl;
 	void *vaddr;
 
 	GEM_BUG_ON(cacheline >= BIT(CACHELINE_BITS));
@@ -173,19 +173,19 @@ cacheline_alloc(struct i915_timeline_hwsp *hwsp, unsigned int cacheline)
 	return cl;
 }
 
-static void cacheline_acquire(struct i915_timeline_cacheline *cl)
+static void cacheline_acquire(struct intel_timeline_cacheline *cl)
 {
 	if (cl && i915_active_acquire(&cl->active))
 		__i915_vma_pin(cl->hwsp->vma);
 }
 
-static void cacheline_release(struct i915_timeline_cacheline *cl)
+static void cacheline_release(struct intel_timeline_cacheline *cl)
 {
 	if (cl)
 		i915_active_release(&cl->active);
 }
 
-static void cacheline_free(struct i915_timeline_cacheline *cl)
+static void cacheline_free(struct intel_timeline_cacheline *cl)
 {
 	GEM_BUG_ON(ptr_test_bit(cl->vaddr, CACHELINE_FREE));
 	cl->vaddr = ptr_set_bit(cl->vaddr, CACHELINE_FREE);
@@ -194,9 +194,9 @@ static void cacheline_free(struct i915_timeline_cacheline *cl)
 		__idle_cacheline_free(cl);
 }
 
-int i915_timeline_init(struct i915_timeline *timeline,
-		       struct intel_gt *gt,
-		       struct i915_vma *hwsp)
+int intel_timeline_init(struct intel_timeline *timeline,
+			struct intel_gt *gt,
+			struct i915_vma *hwsp)
 {
 	void *vaddr;
 
@@ -216,7 +216,7 @@ int i915_timeline_init(struct i915_timeline *timeline,
 	timeline->hwsp_cacheline = NULL;
 
 	if (!hwsp) {
-		struct i915_timeline_cacheline *cl;
+		struct intel_timeline_cacheline *cl;
 		unsigned int cacheline;
 
 		hwsp = hwsp_alloc(timeline, &cacheline);
@@ -273,12 +273,12 @@ static void timelines_init(struct intel_gt *gt)
 	i915_gem_shrinker_taints_mutex(gt->i915, &timelines->mutex);
 }
 
-void i915_timelines_init(struct drm_i915_private *i915)
+void intel_timelines_init(struct drm_i915_private *i915)
 {
 	timelines_init(&i915->gt);
 }
 
-static void timeline_add_to_active(struct i915_timeline *tl)
+static void timeline_add_to_active(struct intel_timeline *tl)
 {
 	struct i915_gt_timelines *gt = &tl->gt->timelines;
 
@@ -287,7 +287,7 @@ static void timeline_add_to_active(struct i915_timeline *tl)
 	mutex_unlock(&gt->mutex);
 }
 
-static void timeline_remove_from_active(struct i915_timeline *tl)
+static void timeline_remove_from_active(struct intel_timeline *tl)
 {
 	struct i915_gt_timelines *gt = &tl->gt->timelines;
 
@@ -299,7 +299,7 @@ static void timeline_remove_from_active(struct i915_timeline *tl)
 static void timelines_park(struct intel_gt *gt)
 {
 	struct i915_gt_timelines *timelines = &gt->timelines;
-	struct i915_timeline *timeline;
+	struct intel_timeline *timeline;
 
 	mutex_lock(&timelines->mutex);
 	list_for_each_entry(timeline, &timelines->active_list, link) {
@@ -315,7 +315,7 @@ static void timelines_park(struct intel_gt *gt)
 }
 
 /**
- * i915_timelines_park - called when the driver idles
+ * intel_timelines_park - called when the driver idles
  * @i915: the drm_i915_private device
  *
  * When the driver is completely idle, we know that all of our sync points
@@ -324,12 +324,12 @@ static void timelines_park(struct intel_gt *gt)
  * the fence is signaled and therefore we will not even look them up in the
  * sync point map.
  */
-void i915_timelines_park(struct drm_i915_private *i915)
+void intel_timelines_park(struct drm_i915_private *i915)
 {
 	timelines_park(&i915->gt);
 }
 
-void i915_timeline_fini(struct i915_timeline *timeline)
+void intel_timeline_fini(struct intel_timeline *timeline)
 {
 	GEM_BUG_ON(timeline->pin_count);
 	GEM_BUG_ON(!list_empty(&timeline->requests));
@@ -344,17 +344,17 @@ void i915_timeline_fini(struct i915_timeline *timeline)
 	i915_vma_put(timeline->hwsp_ggtt);
 }
 
-struct i915_timeline *
-i915_timeline_create(struct intel_gt *gt, struct i915_vma *global_hwsp)
+struct intel_timeline *
+intel_timeline_create(struct intel_gt *gt, struct i915_vma *global_hwsp)
 {
-	struct i915_timeline *timeline;
+	struct intel_timeline *timeline;
 	int err;
 
 	timeline = kzalloc(sizeof(*timeline), GFP_KERNEL);
 	if (!timeline)
 		return ERR_PTR(-ENOMEM);
 
-	err = i915_timeline_init(timeline, gt, global_hwsp);
+	err = intel_timeline_init(timeline, gt, global_hwsp);
 	if (err) {
 		kfree(timeline);
 		return ERR_PTR(err);
@@ -365,7 +365,7 @@ i915_timeline_create(struct intel_gt *gt, struct i915_vma *global_hwsp)
 	return timeline;
 }
 
-int i915_timeline_pin(struct i915_timeline *tl)
+int intel_timeline_pin(struct intel_timeline *tl)
 {
 	int err;
 
@@ -391,7 +391,7 @@ int i915_timeline_pin(struct i915_timeline *tl)
 	return err;
 }
 
-static u32 timeline_advance(struct i915_timeline *tl)
+static u32 timeline_advance(struct intel_timeline *tl)
 {
 	GEM_BUG_ON(!tl->pin_count);
 	GEM_BUG_ON(tl->seqno & tl->has_initial_breadcrumb);
@@ -399,17 +399,17 @@ static u32 timeline_advance(struct i915_timeline *tl)
 	return tl->seqno += 1 + tl->has_initial_breadcrumb;
 }
 
-static void timeline_rollback(struct i915_timeline *tl)
+static void timeline_rollback(struct intel_timeline *tl)
 {
 	tl->seqno -= 1 + tl->has_initial_breadcrumb;
 }
 
 static noinline int
-__i915_timeline_get_seqno(struct i915_timeline *tl,
-			  struct i915_request *rq,
-			  u32 *seqno)
+__intel_timeline_get_seqno(struct intel_timeline *tl,
+			   struct i915_request *rq,
+			   u32 *seqno)
 {
-	struct i915_timeline_cacheline *cl;
+	struct intel_timeline_cacheline *cl;
 	unsigned int cacheline;
 	struct i915_vma *vma;
 	void *vaddr;
@@ -495,31 +495,31 @@ __i915_timeline_get_seqno(struct i915_timeline *tl,
 	return err;
 }
 
-int i915_timeline_get_seqno(struct i915_timeline *tl,
-			    struct i915_request *rq,
-			    u32 *seqno)
+int intel_timeline_get_seqno(struct intel_timeline *tl,
+			     struct i915_request *rq,
+			     u32 *seqno)
 {
 	*seqno = timeline_advance(tl);
 
 	/* Replace the HWSP on wraparound for HW semaphores */
 	if (unlikely(!*seqno && tl->hwsp_cacheline))
-		return __i915_timeline_get_seqno(tl, rq, seqno);
+		return __intel_timeline_get_seqno(tl, rq, seqno);
 
 	return 0;
 }
 
-static int cacheline_ref(struct i915_timeline_cacheline *cl,
+static int cacheline_ref(struct intel_timeline_cacheline *cl,
 			 struct i915_request *rq)
 {
 	return i915_active_ref(&cl->active, rq->fence.context, rq);
 }
 
-int i915_timeline_read_hwsp(struct i915_request *from,
-			    struct i915_request *to,
-			    u32 *hwsp)
+int intel_timeline_read_hwsp(struct i915_request *from,
+			     struct i915_request *to,
+			     u32 *hwsp)
 {
-	struct i915_timeline_cacheline *cl = from->hwsp_cacheline;
-	struct i915_timeline *tl = from->timeline;
+	struct intel_timeline_cacheline *cl = from->hwsp_cacheline;
+	struct intel_timeline *tl = from->timeline;
 	int err;
 
 	GEM_BUG_ON(to->timeline == tl);
@@ -542,7 +542,7 @@ int i915_timeline_read_hwsp(struct i915_request *from,
 	return err;
 }
 
-void i915_timeline_unpin(struct i915_timeline *tl)
+void intel_timeline_unpin(struct intel_timeline *tl)
 {
 	GEM_BUG_ON(!tl->pin_count);
 	if (--tl->pin_count)
@@ -561,12 +561,12 @@ void i915_timeline_unpin(struct i915_timeline *tl)
 	__i915_vma_unpin(tl->hwsp_ggtt);
 }
 
-void __i915_timeline_free(struct kref *kref)
+void __intel_timeline_free(struct kref *kref)
 {
-	struct i915_timeline *timeline =
+	struct intel_timeline *timeline =
 		container_of(kref, typeof(*timeline), kref);
 
-	i915_timeline_fini(timeline);
+	intel_timeline_fini(timeline);
 	kfree(timeline);
 }
 
@@ -580,12 +580,12 @@ static void timelines_fini(struct intel_gt *gt)
 	mutex_destroy(&timelines->mutex);
 }
 
-void i915_timelines_fini(struct drm_i915_private *i915)
+void intel_timelines_fini(struct drm_i915_private *i915)
 {
 	timelines_fini(&i915->gt);
 }
 
 #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
-#include "selftests/mock_timeline.c"
-#include "selftests/i915_timeline.c"
+#include "gt/selftests/mock_timeline.c"
+#include "gt/selftest_timeline.c"
 #endif
diff --git a/drivers/gpu/drm/i915/gt/intel_timeline.h b/drivers/gpu/drm/i915/gt/intel_timeline.h
new file mode 100644
index 000000000000..e08cebf64833
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/intel_timeline.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright © 2016 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ */
+
+#ifndef I915_TIMELINE_H
+#define I915_TIMELINE_H
+
+#include <linux/lockdep.h>
+
+#include "i915_active.h"
+#include "i915_syncmap.h"
+#include "gt/intel_timeline_types.h"
+
+int intel_timeline_init(struct intel_timeline *tl,
+			struct intel_gt *gt,
+			struct i915_vma *hwsp);
+void intel_timeline_fini(struct intel_timeline *tl);
+
+struct intel_timeline *
+intel_timeline_create(struct intel_gt *gt, struct i915_vma *global_hwsp);
+
+static inline struct intel_timeline *
+intel_timeline_get(struct intel_timeline *timeline)
+{
+	kref_get(&timeline->kref);
+	return timeline;
+}
+
+void __intel_timeline_free(struct kref *kref);
+static inline void intel_timeline_put(struct intel_timeline *timeline)
+{
+	kref_put(&timeline->kref, __intel_timeline_free);
+}
+
+static inline int __intel_timeline_sync_set(struct intel_timeline *tl,
+					    u64 context, u32 seqno)
+{
+	return i915_syncmap_set(&tl->sync, context, seqno);
+}
+
+static inline int intel_timeline_sync_set(struct intel_timeline *tl,
+					  const struct dma_fence *fence)
+{
+	return __intel_timeline_sync_set(tl, fence->context, fence->seqno);
+}
+
+static inline bool __intel_timeline_sync_is_later(struct intel_timeline *tl,
+						  u64 context, u32 seqno)
+{
+	return i915_syncmap_is_later(&tl->sync, context, seqno);
+}
+
+static inline bool intel_timeline_sync_is_later(struct intel_timeline *tl,
+						const struct dma_fence *fence)
+{
+	return __intel_timeline_sync_is_later(tl, fence->context, fence->seqno);
+}
+
+int intel_timeline_pin(struct intel_timeline *tl);
+int intel_timeline_get_seqno(struct intel_timeline *tl,
+			     struct i915_request *rq,
+			     u32 *seqno);
+void intel_timeline_unpin(struct intel_timeline *tl);
+
+int intel_timeline_read_hwsp(struct i915_request *from,
+			     struct i915_request *until,
+			     u32 *hwsp_offset);
+
+void intel_timelines_init(struct drm_i915_private *i915);
+void intel_timelines_park(struct drm_i915_private *i915);
+void intel_timelines_fini(struct drm_i915_private *i915);
+
+#endif
diff --git a/drivers/gpu/drm/i915/i915_timeline_types.h b/drivers/gpu/drm/i915/gt/intel_timeline_types.h
similarity index 93%
rename from drivers/gpu/drm/i915/i915_timeline_types.h
rename to drivers/gpu/drm/i915/gt/intel_timeline_types.h
index 931585e12d41..9a71aea7a338 100644
--- a/drivers/gpu/drm/i915/i915_timeline_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_timeline_types.h
@@ -16,10 +16,10 @@
 
 struct drm_i915_private;
 struct i915_vma;
-struct i915_timeline_cacheline;
+struct intel_timeline_cacheline;
 struct i915_syncmap;
 
-struct i915_timeline {
+struct intel_timeline {
 	u64 fence_context;
 	u32 seqno;
 
@@ -30,7 +30,7 @@ struct i915_timeline {
 	struct i915_vma *hwsp_ggtt;
 	u32 hwsp_offset;
 
-	struct i915_timeline_cacheline *hwsp_cacheline;
+	struct intel_timeline_cacheline *hwsp_cacheline;
 
 	bool has_initial_breadcrumb;
 
diff --git a/drivers/gpu/drm/i915/gt/mock_engine.c b/drivers/gpu/drm/i915/gt/mock_engine.c
index b80ec0f53111..463ccb3777c8 100644
--- a/drivers/gpu/drm/i915/gt/mock_engine.c
+++ b/drivers/gpu/drm/i915/gt/mock_engine.c
@@ -33,15 +33,15 @@
 
 struct mock_ring {
 	struct intel_ring base;
-	struct i915_timeline timeline;
+	struct intel_timeline timeline;
 };
 
-static void mock_timeline_pin(struct i915_timeline *tl)
+static void mock_timeline_pin(struct intel_timeline *tl)
 {
 	tl->pin_count++;
 }
 
-static void mock_timeline_unpin(struct i915_timeline *tl)
+static void mock_timeline_unpin(struct intel_timeline *tl)
 {
 	GEM_BUG_ON(!tl->pin_count);
 	tl->pin_count--;
@@ -56,7 +56,7 @@ static struct intel_ring *mock_ring(struct intel_engine_cs *engine)
 	if (!ring)
 		return NULL;
 
-	if (i915_timeline_init(&ring->timeline, engine->gt, NULL)) {
+	if (intel_timeline_init(&ring->timeline, engine->gt, NULL)) {
 		kfree(ring);
 		return NULL;
 	}
@@ -77,7 +77,7 @@ static void mock_ring_free(struct intel_ring *base)
 {
 	struct mock_ring *ring = container_of(base, typeof(*ring), base);
 
-	i915_timeline_fini(&ring->timeline);
+	intel_timeline_fini(&ring->timeline);
 	kfree(ring);
 }
 
diff --git a/drivers/gpu/drm/i915/selftests/i915_timeline.c b/drivers/gpu/drm/i915/gt/selftest_timeline.c
similarity index 87%
rename from drivers/gpu/drm/i915/selftests/i915_timeline.c
rename to drivers/gpu/drm/i915/gt/selftest_timeline.c
index 9eb4e9ab8557..124770d83309 100644
--- a/drivers/gpu/drm/i915/selftests/i915_timeline.c
+++ b/drivers/gpu/drm/i915/gt/selftest_timeline.c
@@ -8,14 +8,14 @@
 
 #include "gem/i915_gem_pm.h"
 
-#include "i915_random.h"
-#include "i915_selftest.h"
+#include "../selftests/i915_random.h"
+#include "../i915_selftest.h"
 
-#include "igt_flush_test.h"
-#include "mock_gem_device.h"
-#include "mock_timeline.h"
+#include "../selftests/igt_flush_test.h"
+#include "../selftests/mock_gem_device.h"
+#include "selftests/mock_timeline.h"
 
-static struct page *hwsp_page(struct i915_timeline *tl)
+static struct page *hwsp_page(struct intel_timeline *tl)
 {
 	struct drm_i915_gem_object *obj = tl->hwsp_ggtt->obj;
 
@@ -23,7 +23,7 @@ static struct page *hwsp_page(struct i915_timeline *tl)
 	return sg_page(obj->mm.pages->sgl);
 }
 
-static unsigned long hwsp_cacheline(struct i915_timeline *tl)
+static unsigned long hwsp_cacheline(struct intel_timeline *tl)
 {
 	unsigned long address = (unsigned long)page_address(hwsp_page(tl));
 
@@ -35,7 +35,7 @@ static unsigned long hwsp_cacheline(struct i915_timeline *tl)
 struct mock_hwsp_freelist {
 	struct drm_i915_private *i915;
 	struct radix_tree_root cachelines;
-	struct i915_timeline **history;
+	struct intel_timeline **history;
 	unsigned long count, max;
 	struct rnd_state prng;
 };
@@ -46,12 +46,12 @@ enum {
 
 static void __mock_hwsp_record(struct mock_hwsp_freelist *state,
 			       unsigned int idx,
-			       struct i915_timeline *tl)
+			       struct intel_timeline *tl)
 {
 	tl = xchg(&state->history[idx], tl);
 	if (tl) {
 		radix_tree_delete(&state->cachelines, hwsp_cacheline(tl));
-		i915_timeline_put(tl);
+		intel_timeline_put(tl);
 	}
 }
 
@@ -59,14 +59,14 @@ static int __mock_hwsp_timeline(struct mock_hwsp_freelist *state,
 				unsigned int count,
 				unsigned int flags)
 {
-	struct i915_timeline *tl;
+	struct intel_timeline *tl;
 	unsigned int idx;
 
 	while (count--) {
 		unsigned long cacheline;
 		int err;
 
-		tl = i915_timeline_create(&state->i915->gt, NULL);
+		tl = intel_timeline_create(&state->i915->gt, NULL);
 		if (IS_ERR(tl))
 			return PTR_ERR(tl);
 
@@ -77,7 +77,7 @@ static int __mock_hwsp_timeline(struct mock_hwsp_freelist *state,
 				pr_err("HWSP cacheline %lu already used; duplicate allocation!\n",
 				       cacheline);
 			}
-			i915_timeline_put(tl);
+			intel_timeline_put(tl);
 			return err;
 		}
 
@@ -162,21 +162,21 @@ struct __igt_sync {
 	bool set;
 };
 
-static int __igt_sync(struct i915_timeline *tl,
+static int __igt_sync(struct intel_timeline *tl,
 		      u64 ctx,
 		      const struct __igt_sync *p,
 		      const char *name)
 {
 	int ret;
 
-	if (__i915_timeline_sync_is_later(tl, ctx, p->seqno) != p->expected) {
+	if (__intel_timeline_sync_is_later(tl, ctx, p->seqno) != p->expected) {
 		pr_err("%s: %s(ctx=%llu, seqno=%u) expected passed %s but failed\n",
 		       name, p->name, ctx, p->seqno, yesno(p->expected));
 		return -EINVAL;
 	}
 
 	if (p->set) {
-		ret = __i915_timeline_sync_set(tl, ctx, p->seqno);
+		ret = __intel_timeline_sync_set(tl, ctx, p->seqno);
 		if (ret)
 			return ret;
 	}
@@ -204,7 +204,7 @@ static int igt_sync(void *arg)
 		{ "unwrap", UINT_MAX, true, false },
 		{},
 	}, *p;
-	struct i915_timeline tl;
+	struct intel_timeline tl;
 	int order, offset;
 	int ret = -ENODEV;
 
@@ -248,7 +248,7 @@ static unsigned int random_engine(struct rnd_state *rnd)
 static int bench_sync(void *arg)
 {
 	struct rnd_state prng;
-	struct i915_timeline tl;
+	struct intel_timeline tl;
 	unsigned long end_time, count;
 	u64 prng32_1M;
 	ktime_t kt;
@@ -286,7 +286,7 @@ static int bench_sync(void *arg)
 	do {
 		u64 id = i915_prandom_u64_state(&prng);
 
-		__i915_timeline_sync_set(&tl, id, 0);
+		__intel_timeline_sync_set(&tl, id, 0);
 		count++;
 	} while (!time_after(jiffies, end_time));
 	kt = ktime_sub(ktime_get(), kt);
@@ -301,7 +301,7 @@ static int bench_sync(void *arg)
 	while (end_time--) {
 		u64 id = i915_prandom_u64_state(&prng);
 
-		if (!__i915_timeline_sync_is_later(&tl, id, 0)) {
+		if (!__intel_timeline_sync_is_later(&tl, id, 0)) {
 			mock_timeline_fini(&tl);
 			pr_err("Lookup of %llu failed\n", id);
 			return -EINVAL;
@@ -322,7 +322,7 @@ static int bench_sync(void *arg)
 	kt = ktime_get();
 	end_time = jiffies + HZ/10;
 	do {
-		__i915_timeline_sync_set(&tl, count++, 0);
+		__intel_timeline_sync_set(&tl, count++, 0);
 	} while (!time_after(jiffies, end_time));
 	kt = ktime_sub(ktime_get(), kt);
 	pr_info("%s: %lu in-order insertions, %lluns/insert\n",
@@ -332,7 +332,7 @@ static int bench_sync(void *arg)
 	end_time = count;
 	kt = ktime_get();
 	while (end_time--) {
-		if (!__i915_timeline_sync_is_later(&tl, end_time, 0)) {
+		if (!__intel_timeline_sync_is_later(&tl, end_time, 0)) {
 			pr_err("Lookup of %lu failed\n", end_time);
 			mock_timeline_fini(&tl);
 			return -EINVAL;
@@ -356,8 +356,8 @@ static int bench_sync(void *arg)
 		u32 id = random_engine(&prng);
 		u32 seqno = prandom_u32_state(&prng);
 
-		if (!__i915_timeline_sync_is_later(&tl, id, seqno))
-			__i915_timeline_sync_set(&tl, id, seqno);
+		if (!__intel_timeline_sync_is_later(&tl, id, seqno))
+			__intel_timeline_sync_set(&tl, id, seqno);
 
 		count++;
 	} while (!time_after(jiffies, end_time));
@@ -385,8 +385,8 @@ static int bench_sync(void *arg)
 			 */
 			u64 id = (u64)(count & mask) << order;
 
-			__i915_timeline_sync_is_later(&tl, id, 0);
-			__i915_timeline_sync_set(&tl, id, 0);
+			__intel_timeline_sync_is_later(&tl, id, 0);
+			__intel_timeline_sync_set(&tl, id, 0);
 
 			count++;
 		} while (!time_after(jiffies, end_time));
@@ -401,7 +401,7 @@ static int bench_sync(void *arg)
 	return 0;
 }
 
-int i915_timeline_mock_selftests(void)
+int intel_timeline_mock_selftests(void)
 {
 	static const struct i915_subtest tests[] = {
 		SUBTEST(mock_hwsp_freelist),
@@ -443,14 +443,14 @@ static int emit_ggtt_store_dw(struct i915_request *rq, u32 addr, u32 value)
 }
 
 static struct i915_request *
-tl_write(struct i915_timeline *tl, struct intel_engine_cs *engine, u32 value)
+tl_write(struct intel_timeline *tl, struct intel_engine_cs *engine, u32 value)
 {
 	struct i915_request *rq;
 	int err;
 
 	lockdep_assert_held(&tl->gt->i915->drm.struct_mutex); /* lazy rq refs */
 
-	err = i915_timeline_pin(tl);
+	err = intel_timeline_pin(tl);
 	if (err) {
 		rq = ERR_PTR(err);
 		goto out;
@@ -466,26 +466,26 @@ tl_write(struct i915_timeline *tl, struct intel_engine_cs *engine, u32 value)
 		rq = ERR_PTR(err);
 
 out_unpin:
-	i915_timeline_unpin(tl);
+	intel_timeline_unpin(tl);
 out:
 	if (IS_ERR(rq))
 		pr_err("Failed to write to timeline!\n");
 	return rq;
 }
 
-static struct i915_timeline *
-checked_i915_timeline_create(struct drm_i915_private *i915)
+static struct intel_timeline *
+checked_intel_timeline_create(struct drm_i915_private *i915)
 {
-	struct i915_timeline *tl;
+	struct intel_timeline *tl;
 
-	tl = i915_timeline_create(&i915->gt, NULL);
+	tl = intel_timeline_create(&i915->gt, NULL);
 	if (IS_ERR(tl))
 		return tl;
 
 	if (*tl->hwsp_seqno != tl->seqno) {
 		pr_err("Timeline created with incorrect breadcrumb, found %x, expected %x\n",
 		       *tl->hwsp_seqno, tl->seqno);
-		i915_timeline_put(tl);
+		intel_timeline_put(tl);
 		return ERR_PTR(-EINVAL);
 	}
 
@@ -496,7 +496,7 @@ static int live_hwsp_engine(void *arg)
 {
 #define NUM_TIMELINES 4096
 	struct drm_i915_private *i915 = arg;
-	struct i915_timeline **timelines;
+	struct intel_timeline **timelines;
 	struct intel_engine_cs *engine;
 	enum intel_engine_id id;
 	intel_wakeref_t wakeref;
@@ -523,10 +523,10 @@ static int live_hwsp_engine(void *arg)
 			continue;
 
 		for (n = 0; n < NUM_TIMELINES; n++) {
-			struct i915_timeline *tl;
+			struct intel_timeline *tl;
 			struct i915_request *rq;
 
-			tl = checked_i915_timeline_create(i915);
+			tl = checked_intel_timeline_create(i915);
 			if (IS_ERR(tl)) {
 				err = PTR_ERR(tl);
 				goto out;
@@ -534,7 +534,7 @@ static int live_hwsp_engine(void *arg)
 
 			rq = tl_write(tl, engine, count);
 			if (IS_ERR(rq)) {
-				i915_timeline_put(tl);
+				intel_timeline_put(tl);
 				err = PTR_ERR(rq);
 				goto out;
 			}
@@ -548,14 +548,14 @@ static int live_hwsp_engine(void *arg)
 		err = -EIO;
 
 	for (n = 0; n < count; n++) {
-		struct i915_timeline *tl = timelines[n];
+		struct intel_timeline *tl = timelines[n];
 
 		if (!err && *tl->hwsp_seqno != n) {
 			pr_err("Invalid seqno stored in timeline %lu, found 0x%x\n",
 			       n, *tl->hwsp_seqno);
 			err = -EINVAL;
 		}
-		i915_timeline_put(tl);
+		intel_timeline_put(tl);
 	}
 
 	intel_runtime_pm_put(&i915->runtime_pm, wakeref);
@@ -571,7 +571,7 @@ static int live_hwsp_alternate(void *arg)
 {
 #define NUM_TIMELINES 4096
 	struct drm_i915_private *i915 = arg;
-	struct i915_timeline **timelines;
+	struct intel_timeline **timelines;
 	struct intel_engine_cs *engine;
 	enum intel_engine_id id;
 	intel_wakeref_t wakeref;
@@ -596,13 +596,13 @@ static int live_hwsp_alternate(void *arg)
 	count = 0;
 	for (n = 0; n < NUM_TIMELINES; n++) {
 		for_each_engine(engine, i915, id) {
-			struct i915_timeline *tl;
+			struct intel_timeline *tl;
 			struct i915_request *rq;
 
 			if (!intel_engine_can_store_dword(engine))
 				continue;
 
-			tl = checked_i915_timeline_create(i915);
+			tl = checked_intel_timeline_create(i915);
 			if (IS_ERR(tl)) {
 				err = PTR_ERR(tl);
 				goto out;
@@ -610,7 +610,7 @@ static int live_hwsp_alternate(void *arg)
 
 			rq = tl_write(tl, engine, count);
 			if (IS_ERR(rq)) {
-				i915_timeline_put(tl);
+				intel_timeline_put(tl);
 				err = PTR_ERR(rq);
 				goto out;
 			}
@@ -624,14 +624,14 @@ static int live_hwsp_alternate(void *arg)
 		err = -EIO;
 
 	for (n = 0; n < count; n++) {
-		struct i915_timeline *tl = timelines[n];
+		struct intel_timeline *tl = timelines[n];
 
 		if (!err && *tl->hwsp_seqno != n) {
 			pr_err("Invalid seqno stored in timeline %lu, found 0x%x\n",
 			       n, *tl->hwsp_seqno);
 			err = -EINVAL;
 		}
-		i915_timeline_put(tl);
+		intel_timeline_put(tl);
 	}
 
 	intel_runtime_pm_put(&i915->runtime_pm, wakeref);
@@ -647,7 +647,7 @@ static int live_hwsp_wrap(void *arg)
 {
 	struct drm_i915_private *i915 = arg;
 	struct intel_engine_cs *engine;
-	struct i915_timeline *tl;
+	struct intel_timeline *tl;
 	enum intel_engine_id id;
 	intel_wakeref_t wakeref;
 	int err = 0;
@@ -660,7 +660,7 @@ static int live_hwsp_wrap(void *arg)
 	mutex_lock(&i915->drm.struct_mutex);
 	wakeref = intel_runtime_pm_get(&i915->runtime_pm);
 
-	tl = i915_timeline_create(&i915->gt, NULL);
+	tl = intel_timeline_create(&i915->gt, NULL);
 	if (IS_ERR(tl)) {
 		err = PTR_ERR(tl);
 		goto out_rpm;
@@ -668,7 +668,7 @@ static int live_hwsp_wrap(void *arg)
 	if (!tl->has_initial_breadcrumb || !tl->hwsp_cacheline)
 		goto out_free;
 
-	err = i915_timeline_pin(tl);
+	err = intel_timeline_pin(tl);
 	if (err)
 		goto out_free;
 
@@ -688,7 +688,7 @@ static int live_hwsp_wrap(void *arg)
 
 		tl->seqno = -4u;
 
-		err = i915_timeline_get_seqno(tl, rq, &seqno[0]);
+		err = intel_timeline_get_seqno(tl, rq, &seqno[0]);
 		if (err) {
 			i915_request_add(rq);
 			goto out;
@@ -703,7 +703,7 @@ static int live_hwsp_wrap(void *arg)
 		}
 		hwsp_seqno[0] = tl->hwsp_seqno;
 
-		err = i915_timeline_get_seqno(tl, rq, &seqno[1]);
+		err = intel_timeline_get_seqno(tl, rq, &seqno[1]);
 		if (err) {
 			i915_request_add(rq);
 			goto out;
@@ -745,9 +745,9 @@ static int live_hwsp_wrap(void *arg)
 	if (igt_flush_test(i915, I915_WAIT_LOCKED))
 		err = -EIO;
 
-	i915_timeline_unpin(tl);
+	intel_timeline_unpin(tl);
 out_free:
-	i915_timeline_put(tl);
+	intel_timeline_put(tl);
 out_rpm:
 	intel_runtime_pm_put(&i915->runtime_pm, wakeref);
 	mutex_unlock(&i915->drm.struct_mutex);
@@ -781,10 +781,10 @@ static int live_hwsp_recycle(void *arg)
 			continue;
 
 		do {
-			struct i915_timeline *tl;
+			struct intel_timeline *tl;
 			struct i915_request *rq;
 
-			tl = checked_i915_timeline_create(i915);
+			tl = checked_intel_timeline_create(i915);
 			if (IS_ERR(tl)) {
 				err = PTR_ERR(tl);
 				goto out;
@@ -792,7 +792,7 @@ static int live_hwsp_recycle(void *arg)
 
 			rq = tl_write(tl, engine, count);
 			if (IS_ERR(rq)) {
-				i915_timeline_put(tl);
+				intel_timeline_put(tl);
 				err = PTR_ERR(rq);
 				goto out;
 			}
@@ -801,7 +801,7 @@ static int live_hwsp_recycle(void *arg)
 					      I915_WAIT_LOCKED,
 					      HZ / 5) < 0) {
 				pr_err("Wait for timeline writes timed out!\n");
-				i915_timeline_put(tl);
+				intel_timeline_put(tl);
 				err = -EIO;
 				goto out;
 			}
@@ -812,13 +812,13 @@ static int live_hwsp_recycle(void *arg)
 				err = -EINVAL;
 			}
 
-			i915_timeline_put(tl);
+			intel_timeline_put(tl);
 			count++;
 
 			if (err)
 				goto out;
 
-			i915_timelines_park(i915); /* Encourage recycling! */
+			intel_timelines_park(i915); /* Encourage recycling! */
 		} while (!__igt_timeout(end_time, NULL));
 	}
 
@@ -831,7 +831,7 @@ static int live_hwsp_recycle(void *arg)
 	return err;
 }
 
-int i915_timeline_live_selftests(struct drm_i915_private *i915)
+int intel_timeline_live_selftests(struct drm_i915_private *i915)
 {
 	static const struct i915_subtest tests[] = {
 		SUBTEST(live_hwsp_recycle),
diff --git a/drivers/gpu/drm/i915/selftests/mock_timeline.c b/drivers/gpu/drm/i915/gt/selftests/mock_timeline.c
similarity index 72%
rename from drivers/gpu/drm/i915/selftests/mock_timeline.c
rename to drivers/gpu/drm/i915/gt/selftests/mock_timeline.c
index c80ac0fbdd3b..5c549205828a 100644
--- a/drivers/gpu/drm/i915/selftests/mock_timeline.c
+++ b/drivers/gpu/drm/i915/gt/selftests/mock_timeline.c
@@ -4,11 +4,11 @@
  * Copyright © 2017-2018 Intel Corporation
  */
 
-#include "../i915_timeline.h"
+#include "../intel_timeline.h"
 
 #include "mock_timeline.h"
 
-void mock_timeline_init(struct i915_timeline *timeline, u64 context)
+void mock_timeline_init(struct intel_timeline *timeline, u64 context)
 {
 	timeline->gt = NULL;
 	timeline->fence_context = context;
@@ -23,7 +23,7 @@ void mock_timeline_init(struct i915_timeline *timeline, u64 context)
 	INIT_LIST_HEAD(&timeline->link);
 }
 
-void mock_timeline_fini(struct i915_timeline *timeline)
+void mock_timeline_fini(struct intel_timeline *timeline)
 {
 	i915_syncmap_free(&timeline->sync);
 }
diff --git a/drivers/gpu/drm/i915/selftests/mock_timeline.h b/drivers/gpu/drm/i915/gt/selftests/mock_timeline.h
similarity index 53%
rename from drivers/gpu/drm/i915/selftests/mock_timeline.h
rename to drivers/gpu/drm/i915/gt/selftests/mock_timeline.h
index b6deaa61110d..689efc66c908 100644
--- a/drivers/gpu/drm/i915/selftests/mock_timeline.h
+++ b/drivers/gpu/drm/i915/gt/selftests/mock_timeline.h
@@ -7,9 +7,9 @@
 #ifndef __MOCK_TIMELINE__
 #define __MOCK_TIMELINE__
 
-struct i915_timeline;
+struct intel_timeline;
 
-void mock_timeline_init(struct i915_timeline *timeline, u64 context);
-void mock_timeline_fini(struct i915_timeline *timeline);
+void mock_timeline_init(struct intel_timeline *timeline, u64 context);
+void mock_timeline_fini(struct intel_timeline *timeline);
 
 #endif /* !__MOCK_TIMELINE__ */
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 29436387611b..422d0538ba07 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -88,7 +88,7 @@
 #include "i915_gpu_error.h"
 #include "i915_request.h"
 #include "i915_scheduler.h"
-#include "i915_timeline.h"
+#include "gt/intel_timeline.h"
 #include "i915_vma.h"
 
 #include "intel_gvt.h"
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 63fb06125a90..a98ca838c7c8 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -908,7 +908,7 @@ wait_for_timelines(struct drm_i915_private *i915,
 		   unsigned int flags, long timeout)
 {
 	struct i915_gt_timelines *gt = &i915->gt.timelines;
-	struct i915_timeline *tl;
+	struct intel_timeline *tl;
 
 	mutex_lock(&gt->mutex);
 	list_for_each_entry(tl, &gt->active_list, link) {
@@ -1486,7 +1486,7 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
 
 	dev_priv->mm.unordered_timeline = dma_fence_context_alloc(1);
 
-	i915_timelines_init(dev_priv);
+	intel_timelines_init(dev_priv);
 
 	ret = i915_gem_init_userptr(dev_priv);
 	if (ret)
@@ -1623,7 +1623,7 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
 
 	if (ret != -EIO) {
 		i915_gem_cleanup_userptr(dev_priv);
-		i915_timelines_fini(dev_priv);
+		intel_timelines_fini(dev_priv);
 	}
 
 	if (ret == -EIO) {
@@ -1687,7 +1687,7 @@ void i915_gem_fini(struct drm_i915_private *dev_priv)
 
 	intel_uc_fini_misc(dev_priv);
 	i915_gem_cleanup_userptr(dev_priv);
-	i915_timelines_fini(dev_priv);
+	intel_timelines_fini(dev_priv);
 
 	i915_gem_drain_freed_objects(dev_priv);
 
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 827af6ba36c7..6ac2f45e2f19 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -43,7 +43,7 @@
 #include "i915_request.h"
 #include "i915_scatterlist.h"
 #include "i915_selftest.h"
-#include "i915_timeline.h"
+#include "gt/intel_timeline.h"
 
 #define I915_GTT_PAGE_SIZE_4K	BIT_ULL(12)
 #define I915_GTT_PAGE_SIZE_64K	BIT_ULL(16)
diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 9819483d1b5d..b6894d5bba75 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -596,7 +596,7 @@ request_alloc_slow(struct intel_context *ce, gfp_t gfp)
 struct i915_request *
 __i915_request_create(struct intel_context *ce, gfp_t gfp)
 {
-	struct i915_timeline *tl = ce->ring->timeline;
+	struct intel_timeline *tl = ce->ring->timeline;
 	struct i915_request *rq;
 	u32 seqno;
 	int ret;
@@ -645,7 +645,7 @@ __i915_request_create(struct intel_context *ce, gfp_t gfp)
 		}
 	}
 
-	ret = i915_timeline_get_seqno(tl, rq, &seqno);
+	ret = intel_timeline_get_seqno(tl, rq, &seqno);
 	if (ret)
 		goto err_free;
 
@@ -764,7 +764,7 @@ i915_request_await_start(struct i915_request *rq, struct i915_request *signal)
 		return 0;
 
 	signal = list_prev_entry(signal, ring_link);
-	if (i915_timeline_sync_is_later(rq->timeline, &signal->fence))
+	if (intel_timeline_sync_is_later(rq->timeline, &signal->fence))
 		return 0;
 
 	return i915_sw_fence_await_dma_fence(&rq->submit,
@@ -818,7 +818,7 @@ emit_semaphore_wait(struct i915_request *to,
 		return err;
 
 	/* We need to pin the signaler's HWSP until we are finished reading. */
-	err = i915_timeline_read_hwsp(from, to, &hwsp_offset);
+	err = intel_timeline_read_hwsp(from, to, &hwsp_offset);
 	if (err)
 		return err;
 
@@ -929,7 +929,7 @@ i915_request_await_dma_fence(struct i915_request *rq, struct dma_fence *fence)
 
 		/* Squash repeated waits to the same timelines */
 		if (fence->context != rq->i915->mm.unordered_timeline &&
-		    i915_timeline_sync_is_later(rq->timeline, fence))
+		    intel_timeline_sync_is_later(rq->timeline, fence))
 			continue;
 
 		if (dma_fence_is_i915(fence))
@@ -943,7 +943,7 @@ i915_request_await_dma_fence(struct i915_request *rq, struct dma_fence *fence)
 
 		/* Record the latest fence used against each timeline */
 		if (fence->context != rq->i915->mm.unordered_timeline)
-			i915_timeline_sync_set(rq->timeline, fence);
+			intel_timeline_sync_set(rq->timeline, fence);
 	} while (--nchild);
 
 	return 0;
@@ -1081,7 +1081,7 @@ void i915_request_skip(struct i915_request *rq, int error)
 static struct i915_request *
 __i915_request_add_to_timeline(struct i915_request *rq)
 {
-	struct i915_timeline *timeline = rq->timeline;
+	struct intel_timeline *timeline = rq->timeline;
 	struct i915_request *prev;
 
 	/*
diff --git a/drivers/gpu/drm/i915/i915_request.h b/drivers/gpu/drm/i915/i915_request.h
index edbbdfec24ab..b90f3d7a29d6 100644
--- a/drivers/gpu/drm/i915/i915_request.h
+++ b/drivers/gpu/drm/i915/i915_request.h
@@ -40,8 +40,8 @@
 struct drm_file;
 struct drm_i915_gem_object;
 struct i915_request;
-struct i915_timeline;
-struct i915_timeline_cacheline;
+struct intel_timeline;
+struct intel_timeline_cacheline;
 
 struct i915_capture_list {
 	struct i915_capture_list *next;
@@ -112,7 +112,7 @@ struct i915_request {
 	struct intel_engine_cs *engine;
 	struct intel_context *hw_context;
 	struct intel_ring *ring;
-	struct i915_timeline *timeline;
+	struct intel_timeline *timeline;
 	struct list_head signal_link;
 
 	/*
@@ -175,7 +175,7 @@ struct i915_request {
 	 * inside the timeline's HWSP vma, but it is only valid while this
 	 * request has not completed and guarded by the timeline mutex.
 	 */
-	struct i915_timeline_cacheline *hwsp_cacheline;
+	struct intel_timeline_cacheline *hwsp_cacheline;
 
 	/** Position in the ring of the start of the request */
 	u32 head;
diff --git a/drivers/gpu/drm/i915/i915_timeline.h b/drivers/gpu/drm/i915/i915_timeline.h
deleted file mode 100644
index a454d49f229f..000000000000
--- a/drivers/gpu/drm/i915/i915_timeline.h
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * Copyright © 2016 Intel Corporation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- *
- */
-
-#ifndef I915_TIMELINE_H
-#define I915_TIMELINE_H
-
-#include <linux/lockdep.h>
-
-#include "i915_active.h"
-#include "i915_syncmap.h"
-#include "i915_timeline_types.h"
-
-int i915_timeline_init(struct i915_timeline *tl,
-		       struct intel_gt *gt,
-		       struct i915_vma *hwsp);
-void i915_timeline_fini(struct i915_timeline *tl);
-
-struct i915_timeline *
-i915_timeline_create(struct intel_gt *gt, struct i915_vma *global_hwsp);
-
-static inline struct i915_timeline *
-i915_timeline_get(struct i915_timeline *timeline)
-{
-	kref_get(&timeline->kref);
-	return timeline;
-}
-
-void __i915_timeline_free(struct kref *kref);
-static inline void i915_timeline_put(struct i915_timeline *timeline)
-{
-	kref_put(&timeline->kref, __i915_timeline_free);
-}
-
-static inline int __i915_timeline_sync_set(struct i915_timeline *tl,
-					   u64 context, u32 seqno)
-{
-	return i915_syncmap_set(&tl->sync, context, seqno);
-}
-
-static inline int i915_timeline_sync_set(struct i915_timeline *tl,
-					 const struct dma_fence *fence)
-{
-	return __i915_timeline_sync_set(tl, fence->context, fence->seqno);
-}
-
-static inline bool __i915_timeline_sync_is_later(struct i915_timeline *tl,
-						 u64 context, u32 seqno)
-{
-	return i915_syncmap_is_later(&tl->sync, context, seqno);
-}
-
-static inline bool i915_timeline_sync_is_later(struct i915_timeline *tl,
-					       const struct dma_fence *fence)
-{
-	return __i915_timeline_sync_is_later(tl, fence->context, fence->seqno);
-}
-
-int i915_timeline_pin(struct i915_timeline *tl);
-int i915_timeline_get_seqno(struct i915_timeline *tl,
-			    struct i915_request *rq,
-			    u32 *seqno);
-void i915_timeline_unpin(struct i915_timeline *tl);
-
-int i915_timeline_read_hwsp(struct i915_request *from,
-			    struct i915_request *until,
-			    u32 *hwsp_offset);
-
-void i915_timelines_init(struct drm_i915_private *i915);
-void i915_timelines_park(struct drm_i915_private *i915);
-void i915_timelines_fini(struct drm_i915_private *i915);
-
-#endif
diff --git a/drivers/gpu/drm/i915/selftests/i915_live_selftests.h b/drivers/gpu/drm/i915/selftests/i915_live_selftests.h
index d5dc4427d664..2b31a4ee0b4c 100644
--- a/drivers/gpu/drm/i915/selftests/i915_live_selftests.h
+++ b/drivers/gpu/drm/i915/selftests/i915_live_selftests.h
@@ -12,7 +12,7 @@
 selftest(sanitycheck, i915_live_sanitycheck) /* keep first (igt selfcheck) */
 selftest(uncore, intel_uncore_live_selftests)
 selftest(workarounds, intel_workarounds_live_selftests)
-selftest(timelines, i915_timeline_live_selftests)
+selftest(timelines, intel_timeline_live_selftests)
 selftest(requests, i915_request_live_selftests)
 selftest(active, i915_active_live_selftests)
 selftest(objects, i915_gem_object_live_selftests)
diff --git a/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h b/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h
index 510eb176bb2c..b55da4d9ccba 100644
--- a/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h
+++ b/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h
@@ -15,7 +15,7 @@ selftest(scatterlist, scatterlist_mock_selftests)
 selftest(syncmap, i915_syncmap_mock_selftests)
 selftest(uncore, intel_uncore_mock_selftests)
 selftest(engine, intel_engine_cs_mock_selftests)
-selftest(timelines, i915_timeline_mock_selftests)
+selftest(timelines, intel_timeline_mock_selftests)
 selftest(requests, i915_request_mock_selftests)
 selftest(objects, i915_gem_object_mock_selftests)
 selftest(phys, i915_gem_phys_mock_selftests)
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 021ba42a3a00..2741805b56c2 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -68,7 +68,7 @@ static void mock_device_release(struct drm_device *dev)
 	i915_gem_contexts_fini(i915);
 	mutex_unlock(&i915->drm.struct_mutex);
 
-	i915_timelines_fini(i915);
+	intel_timelines_fini(i915);
 
 	drain_workqueue(i915->wq);
 	i915_gem_drain_freed_objects(i915);
@@ -199,7 +199,7 @@ struct drm_i915_private *mock_gem_device(void)
 
 	i915->gt.awake = true;
 
-	i915_timelines_init(i915);
+	intel_timelines_init(i915);
 
 	mutex_lock(&i915->drm.struct_mutex);
 
@@ -230,7 +230,7 @@ struct drm_i915_private *mock_gem_device(void)
 	mock_engine_free(i915->engine[RCS0]);
 err_unlock:
 	mutex_unlock(&i915->drm.struct_mutex);
-	i915_timelines_fini(i915);
+	intel_timelines_fini(i915);
 	destroy_workqueue(i915->wq);
 err_drv:
 	drm_mode_config_cleanup(&i915->drm);
-- 
2.20.1

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[RFC 33/33] drm/i915: Eliminate dual personality of i915_scratch_offset

[Tvrtko Ursulin]

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

Scratch vma lives under gt but the API used to work on i915. Make this
consistent by renaming the function to intel_gt_scratch_offset and make
it take struct intel_gt.

v2:
 * Move to intel_gt. (Chris)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_engine_cs.c  |  2 +-
 drivers/gpu/drm/i915/gt/intel_gt.c         | 38 ++++++++++++++++++++++
 drivers/gpu/drm/i915/gt/intel_gt.h         |  8 +++++
 drivers/gpu/drm/i915/gt/intel_lrc.c        |  9 ++---
 drivers/gpu/drm/i915/gt/intel_ringbuffer.c | 29 ++++++++++-------
 drivers/gpu/drm/i915/i915_drv.h            |  5 ---
 drivers/gpu/drm/i915/i915_gem.c            | 31 ++----------------
 drivers/gpu/drm/i915/i915_gpu_error.c      |  2 +-
 8 files changed, 73 insertions(+), 51 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 90c65269eadd..d1a4ef2b03ac 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -730,7 +730,7 @@ static int measure_breadcrumb_dw(struct intel_engine_cs *engine)
 	struct measure_breadcrumb *frame;
 	int dw = -ENOMEM;
 
-	GEM_BUG_ON(!engine->i915->gt.scratch);
+	GEM_BUG_ON(!engine->gt->scratch);
 
 	frame = kzalloc(sizeof(*frame), GFP_KERNEL);
 	if (!frame)
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 204e7039ca32..c74fa55668c7 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -203,3 +203,41 @@ void intel_gt_chipset_flush(struct intel_gt *gt)
 	if (INTEL_GEN(gt->i915) < 6)
 		intel_gtt_chipset_flush();
 }
+
+int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size)
+{
+	struct drm_i915_private *i915 = gt->i915;
+	struct drm_i915_gem_object *obj;
+	struct i915_vma *vma;
+	int ret;
+
+	obj = i915_gem_object_create_stolen(i915, size);
+	if (!obj)
+		obj = i915_gem_object_create_internal(i915, size);
+	if (IS_ERR(obj)) {
+		DRM_ERROR("Failed to allocate scratch page\n");
+		return PTR_ERR(obj);
+	}
+
+	vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL);
+	if (IS_ERR(vma)) {
+		ret = PTR_ERR(vma);
+		goto err_unref;
+	}
+
+	ret = i915_vma_pin(vma, 0, 0, PIN_GLOBAL | PIN_HIGH);
+	if (ret)
+		goto err_unref;
+
+	gt->scratch = vma;
+	return 0;
+
+err_unref:
+	i915_gem_object_put(obj);
+	return ret;
+}
+
+void intel_gt_fini_scratch(struct intel_gt *gt)
+{
+	i915_vma_unpin_and_release(&gt->scratch, 0);
+}
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
index 091ded4deead..c9ea3fdc21b0 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt.h
@@ -22,4 +22,12 @@ void intel_gt_clear_error_registers(struct intel_gt *gt,
 void intel_gt_flush_ggtt_writes(struct intel_gt *gt);
 void intel_gt_chipset_flush(struct intel_gt *gt);
 
+int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size);
+void intel_gt_fini_scratch(struct intel_gt *gt);
+
+static inline u32 intel_gt_scratch_offset(const struct intel_gt *gt)
+{
+	return i915_ggtt_offset(gt->scratch);
+}
+
 #endif /* __INTEL_GT_H__ */
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 7cc3ab38768f..6daaba9b99bc 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -135,6 +135,7 @@
 
 #include "gem/i915_gem_context.h"
 
+#include "gt/intel_gt.h"
 #include "i915_drv.h"
 #include "i915_gem_render_state.h"
 #include "i915_vgpu.h"
@@ -1681,7 +1682,7 @@ gen8_emit_flush_coherentl3_wa(struct intel_engine_cs *engine, u32 *batch)
 	/* NB no one else is allowed to scribble over scratch + 256! */
 	*batch++ = MI_STORE_REGISTER_MEM_GEN8 | MI_SRM_LRM_GLOBAL_GTT;
 	*batch++ = i915_mmio_reg_offset(GEN8_L3SQCREG4);
-	*batch++ = i915_scratch_offset(engine->i915) + 256;
+	*batch++ = intel_gt_scratch_offset(engine->gt) + 256;
 	*batch++ = 0;
 
 	*batch++ = MI_LOAD_REGISTER_IMM(1);
@@ -1695,7 +1696,7 @@ gen8_emit_flush_coherentl3_wa(struct intel_engine_cs *engine, u32 *batch)
 
 	*batch++ = MI_LOAD_REGISTER_MEM_GEN8 | MI_SRM_LRM_GLOBAL_GTT;
 	*batch++ = i915_mmio_reg_offset(GEN8_L3SQCREG4);
-	*batch++ = i915_scratch_offset(engine->i915) + 256;
+	*batch++ = intel_gt_scratch_offset(engine->gt) + 256;
 	*batch++ = 0;
 
 	return batch;
@@ -1732,7 +1733,7 @@ static u32 *gen8_init_indirectctx_bb(struct intel_engine_cs *engine, u32 *batch)
 				       PIPE_CONTROL_GLOBAL_GTT_IVB |
 				       PIPE_CONTROL_CS_STALL |
 				       PIPE_CONTROL_QW_WRITE,
-				       i915_scratch_offset(engine->i915) +
+				       intel_gt_scratch_offset(engine->gt) +
 				       2 * CACHELINE_BYTES);
 
 	*batch++ = MI_ARB_ON_OFF | MI_ARB_ENABLE;
@@ -2439,7 +2440,7 @@ static int gen8_emit_flush_render(struct i915_request *request,
 {
 	struct intel_engine_cs *engine = request->engine;
 	u32 scratch_addr =
-		i915_scratch_offset(engine->i915) + 2 * CACHELINE_BYTES;
+		intel_gt_scratch_offset(engine->gt) + 2 * CACHELINE_BYTES;
 	bool vf_flush_wa = false, dc_flush_wa = false;
 	u32 *cs, flags = 0;
 	int len;
diff --git a/drivers/gpu/drm/i915/gt/intel_ringbuffer.c b/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
index 15d2ac9ea020..c835e96ce87a 100644
--- a/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/gt/intel_ringbuffer.c
@@ -33,6 +33,8 @@
 
 #include "gem/i915_gem_context.h"
 
+#include "gt/intel_gt.h"
+
 #include "i915_drv.h"
 #include "i915_gem_render_state.h"
 #include "i915_trace.h"
@@ -75,7 +77,7 @@ gen2_render_ring_flush(struct i915_request *rq, u32 mode)
 	*cs++ = cmd;
 	while (num_store_dw--) {
 		*cs++ = MI_STORE_DWORD_IMM | MI_MEM_VIRTUAL;
-		*cs++ = i915_scratch_offset(rq->i915);
+		*cs++ = intel_gt_scratch_offset(rq->engine->gt);
 		*cs++ = 0;
 	}
 	*cs++ = MI_FLUSH | MI_NO_WRITE_FLUSH;
@@ -148,7 +150,8 @@ gen4_render_ring_flush(struct i915_request *rq, u32 mode)
 	 */
 	if (mode & EMIT_INVALIDATE) {
 		*cs++ = GFX_OP_PIPE_CONTROL(4) | PIPE_CONTROL_QW_WRITE;
-		*cs++ = i915_scratch_offset(rq->i915) | PIPE_CONTROL_GLOBAL_GTT;
+		*cs++ = intel_gt_scratch_offset(rq->engine->gt) |
+			PIPE_CONTROL_GLOBAL_GTT;
 		*cs++ = 0;
 		*cs++ = 0;
 
@@ -156,7 +159,8 @@ gen4_render_ring_flush(struct i915_request *rq, u32 mode)
 			*cs++ = MI_FLUSH;
 
 		*cs++ = GFX_OP_PIPE_CONTROL(4) | PIPE_CONTROL_QW_WRITE;
-		*cs++ = i915_scratch_offset(rq->i915) | PIPE_CONTROL_GLOBAL_GTT;
+		*cs++ = intel_gt_scratch_offset(rq->engine->gt) |
+			PIPE_CONTROL_GLOBAL_GTT;
 		*cs++ = 0;
 		*cs++ = 0;
 	}
@@ -208,7 +212,8 @@ gen4_render_ring_flush(struct i915_request *rq, u32 mode)
 static int
 gen6_emit_post_sync_nonzero_flush(struct i915_request *rq)
 {
-	u32 scratch_addr = i915_scratch_offset(rq->i915) + 2 * CACHELINE_BYTES;
+	u32 scratch_addr =
+		intel_gt_scratch_offset(rq->engine->gt) + 2 * CACHELINE_BYTES;
 	u32 *cs;
 
 	cs = intel_ring_begin(rq, 6);
@@ -241,7 +246,8 @@ gen6_emit_post_sync_nonzero_flush(struct i915_request *rq)
 static int
 gen6_render_ring_flush(struct i915_request *rq, u32 mode)
 {
-	u32 scratch_addr = i915_scratch_offset(rq->i915) + 2 * CACHELINE_BYTES;
+	u32 scratch_addr =
+		intel_gt_scratch_offset(rq->engine->gt) + 2 * CACHELINE_BYTES;
 	u32 *cs, flags = 0;
 	int ret;
 
@@ -299,7 +305,7 @@ static u32 *gen6_rcs_emit_breadcrumb(struct i915_request *rq, u32 *cs)
 
 	*cs++ = GFX_OP_PIPE_CONTROL(4);
 	*cs++ = PIPE_CONTROL_QW_WRITE;
-	*cs++ = i915_scratch_offset(rq->i915) | PIPE_CONTROL_GLOBAL_GTT;
+	*cs++ = intel_gt_scratch_offset(rq->engine->gt) | PIPE_CONTROL_GLOBAL_GTT;
 	*cs++ = 0;
 
 	/* Finally we can flush and with it emit the breadcrumb */
@@ -342,7 +348,8 @@ gen7_render_ring_cs_stall_wa(struct i915_request *rq)
 static int
 gen7_render_ring_flush(struct i915_request *rq, u32 mode)
 {
-	u32 scratch_addr = i915_scratch_offset(rq->i915) + 2 * CACHELINE_BYTES;
+	u32 scratch_addr =
+		intel_gt_scratch_offset(rq->engine->gt) + 2 * CACHELINE_BYTES;
 	u32 *cs, flags = 0;
 
 	/*
@@ -1071,9 +1078,9 @@ i830_emit_bb_start(struct i915_request *rq,
 		   u64 offset, u32 len,
 		   unsigned int dispatch_flags)
 {
-	u32 *cs, cs_offset = i915_scratch_offset(rq->i915);
+	u32 *cs, cs_offset = intel_gt_scratch_offset(rq->engine->gt);
 
-	GEM_BUG_ON(rq->i915->gt.scratch->size < I830_WA_SIZE);
+	GEM_BUG_ON(rq->engine->gt->scratch->size < I830_WA_SIZE);
 
 	cs = intel_ring_begin(rq, 6);
 	if (IS_ERR(cs))
@@ -1504,7 +1511,7 @@ static int flush_pd_dir(struct i915_request *rq)
 	/* Stall until the page table load is complete */
 	*cs++ = MI_STORE_REGISTER_MEM | MI_SRM_LRM_GLOBAL_GTT;
 	*cs++ = i915_mmio_reg_offset(RING_PP_DIR_BASE(engine->mmio_base));
-	*cs++ = i915_scratch_offset(rq->i915);
+	*cs++ = intel_gt_scratch_offset(rq->engine->gt);
 	*cs++ = MI_NOOP;
 
 	intel_ring_advance(rq, cs);
@@ -1620,7 +1627,7 @@ static inline int mi_set_context(struct i915_request *rq, u32 flags)
 			/* Insert a delay before the next switch! */
 			*cs++ = MI_STORE_REGISTER_MEM | MI_SRM_LRM_GLOBAL_GTT;
 			*cs++ = i915_mmio_reg_offset(last_reg);
-			*cs++ = i915_scratch_offset(rq->i915);
+			*cs++ = intel_gt_scratch_offset(rq->engine->gt);
 			*cs++ = MI_NOOP;
 		}
 		*cs++ = MI_ARB_ON_OFF | MI_ARB_ENABLE;
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 422d0538ba07..d211e9ed8011 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2784,11 +2784,6 @@ static inline int intel_hws_csb_write_index(struct drm_i915_private *i915)
 		return I915_HWS_CSB_WRITE_INDEX;
 }
 
-static inline u32 i915_scratch_offset(const struct drm_i915_private *i915)
-{
-	return i915_ggtt_offset(i915->gt.scratch);
-}
-
 static inline enum i915_map_type
 i915_coherent_map_type(struct drm_i915_private *i915)
 {
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index a98ca838c7c8..6b284c1f931d 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1423,39 +1423,12 @@ static int __intel_engines_record_defaults(struct drm_i915_private *i915)
 static int
 i915_gem_init_scratch(struct drm_i915_private *i915, unsigned int size)
 {
-	struct drm_i915_gem_object *obj;
-	struct i915_vma *vma;
-	int ret;
-
-	obj = i915_gem_object_create_stolen(i915, size);
-	if (!obj)
-		obj = i915_gem_object_create_internal(i915, size);
-	if (IS_ERR(obj)) {
-		DRM_ERROR("Failed to allocate scratch page\n");
-		return PTR_ERR(obj);
-	}
-
-	vma = i915_vma_instance(obj, &i915->ggtt.vm, NULL);
-	if (IS_ERR(vma)) {
-		ret = PTR_ERR(vma);
-		goto err_unref;
-	}
-
-	ret = i915_vma_pin(vma, 0, 0, PIN_GLOBAL | PIN_HIGH);
-	if (ret)
-		goto err_unref;
-
-	i915->gt.scratch = vma;
-	return 0;
-
-err_unref:
-	i915_gem_object_put(obj);
-	return ret;
+	return intel_gt_init_scratch(&i915->gt, size);
 }
 
 static void i915_gem_fini_scratch(struct drm_i915_private *i915)
 {
-	i915_vma_unpin_and_release(&i915->gt.scratch, 0);
+	intel_gt_fini_scratch(&i915->gt);
 }
 
 static int intel_engines_verify_workarounds(struct drm_i915_private *i915)
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index c40799fad2cd..9e1422b76eb3 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1446,7 +1446,7 @@ static void gem_record_rings(struct i915_gpu_state *error)
 			if (HAS_BROKEN_CS_TLB(i915))
 				ee->wa_batchbuffer =
 					i915_error_object_create(i915,
-								 i915->gt.scratch);
+								 engine->gt->scratch);
 			request_record_user_bo(request, ee);
 
 			ee->ctx =
-- 
2.20.1

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✗ Fi.CI.BAT: failure for Implicit dev_priv removal and GT compartmentalization (rev9)

[Patchwork]

== Series Details ==

Series: Implicit dev_priv removal and GT compartmentalization (rev9)
URL   : https://patchwork.freedesktop.org/series/62046/
State : failure

== Summary ==

Applying: drm/i915: Convert intel_vgt_(de)balloon to uncore
Applying: drm/i915: Introduce struct intel_gt as replacement for anonymous i915->gt
Using index info to reconstruct a base tree...
M	drivers/gpu/drm/i915/i915_drv.h
Falling back to patching base and 3-way merge...
Auto-merging drivers/gpu/drm/i915/i915_drv.h
Applying: drm/i915: Move intel_gt initialization to a separate file
Applying: drm/i915: Store some backpointers in struct intel_gt
Applying: drm/i915: Move intel_gt_pm_init under intel_gt_init_early
Applying: drm/i915: Make i915_check_and_clear_faults take intel_gt
error: sha1 information is lacking or useless (drivers/gpu/drm/i915/i915_drv.c).
error: could not build fake ancestor
hint: Use 'git am --show-current-patch' to see the failed patch
Patch failed at 0006 drm/i915: Make i915_check_and_clear_faults take intel_gt
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

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Re: [RFC 08/33] drm/i915: Use intel_uncore_rmw in intel_gt_init_swizzling

[Chris Wilson]

Quoting Tvrtko Ursulin (2019-06-17 19:12:11)
> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> 
> Two easy opportunities to compact the code by using the existing helper.
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> Suggested-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
> ---
>  drivers/gpu/drm/i915/i915_gem_fence_reg.c | 9 ++-------
>  1 file changed, 2 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_gem_fence_reg.c b/drivers/gpu/drm/i915/i915_gem_fence_reg.c
> index dd09790c420d..bcac359ec661 100644
> --- a/drivers/gpu/drm/i915/i915_gem_fence_reg.c
> +++ b/drivers/gpu/drm/i915/i915_gem_fence_reg.c
> @@ -844,17 +844,12 @@ void intel_gt_init_swizzling(struct intel_gt *gt)
>             i915->mm.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_NONE)
>                 return;
>  
> -       intel_uncore_write(uncore,
> -                          DISP_ARB_CTL,
> -                          intel_uncore_read(uncore, DISP_ARB_CTL) |
> -                          DISP_TILE_SURFACE_SWIZZLING);
> +       intel_uncore_rmw(uncore, DISP_ARB_CTL, 0, DISP_TILE_SURFACE_SWIZZLING);
>  
>         if (IS_GEN(i915, 5))
>                 return;
>  
> -       intel_uncore_write(uncore,
> -                          TILECTL,
> -                          intel_uncore_read(uncore, TILECTL) | TILECTL_SWZCTL);
> +       intel_uncore_rmw(uncore, TILECTL, 0, TILECTL_SWZCTL);

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
-Chris
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Re: [RFC 23/33] drm/i915: Convert i915_gem_flush_ggtt_writes to intel_gt

[Chris Wilson]

Quoting Tvrtko Ursulin (2019-06-17 19:12:26)
> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> 
> Having introduced struct intel_gt (named the anonymous structure in i915)
> we can start using it to compartmentalize our code better. It makes more
> sense logically to have the code internally like this and it will also
> help with future split between gt and display in i915.
> 
> v2:
>  * Keep ggtt flush before fb obj flush. (Chris)
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> ---
>  drivers/gpu/drm/i915/gem/i915_gem_object.c    | 12 +++---
>  .../drm/i915/gem/selftests/i915_gem_mman.c    |  3 +-
>  drivers/gpu/drm/i915/gt/intel_gt.c            | 41 +++++++++++++++++++
>  drivers/gpu/drm/i915/gt/intel_gt.h            |  2 +
>  drivers/gpu/drm/i915/i915_drv.h               |  2 -
>  drivers/gpu/drm/i915/i915_gem.c               | 40 ------------------
>  drivers/gpu/drm/i915/i915_vma.c               |  3 +-
>  drivers/gpu/drm/i915/selftests/i915_gem_gtt.c |  2 +-
>  8 files changed, 54 insertions(+), 51 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.c b/drivers/gpu/drm/i915/gem/i915_gem_object.c
> index a4047a585c8b..f58d45ae10d0 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_object.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_object.c
> @@ -22,6 +22,7 @@
>   *
>   */
>  
> +#include "gt/intel_gt.h"
>  #include "i915_drv.h"
>  #include "i915_gem_clflush.h"
>  #include "i915_gem_context.h"
> @@ -367,7 +368,6 @@ void
>  i915_gem_object_flush_write_domain(struct drm_i915_gem_object *obj,
>                                    unsigned int flush_domains)
>  {
> -       struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
>         struct i915_vma *vma;
>  
>         assert_object_held(obj);
> @@ -377,17 +377,17 @@ i915_gem_object_flush_write_domain(struct drm_i915_gem_object *obj,
>  
>         switch (obj->write_domain) {
>         case I915_GEM_DOMAIN_GTT:
> -               i915_gem_flush_ggtt_writes(dev_priv);
> -
> -               intel_fb_obj_flush(obj,
> -                                  fb_write_origin(obj, I915_GEM_DOMAIN_GTT));
> -
>                 for_each_ggtt_vma(vma, obj) {
>                         if (vma->iomap)
>                                 continue;
>  
> +                       intel_gt_flush_ggtt_writes(vma->vm->gt);
>                         i915_vma_unset_ggtt_write(vma);
> +                       break;

So we no longer flush writes from user GGTT mmaps, nor clear all the
dirty bits? And now despite the move to be gt centric we end up assuming
that it is still really device centric (breaking after one gt flush).
-Chris
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Re: [RFC 24/33] drm/i915: Move i915_gem_chipset_flush to intel_gt

[Chris Wilson]

Quoting Tvrtko Ursulin (2019-06-17 19:12:27)
> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> 
> This aligns better with the rest of restructuring.
> 
> v2:
>  * Move call out of line. (Chris)
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
-Chris
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Re: [RFC 27/33] drm/i915: Compartmentalize i915_gem_init_ggtt

[Chris Wilson]

Quoting Tvrtko Ursulin (2019-06-17 19:12:30)
> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> 
> Continuing on the theme of better logical organization of our code, make
> the first step towards making the ggtt code better isolated from wider
> struct drm_i915_private.
> 
> v2:
>  * Bring the ickle onion unwind back. (Chris)
>  * Rename to i915_init_ggtt. (Chris)
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
-Chris
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Re: [RFC 33/33] drm/i915: Eliminate dual personality of i915_scratch_offset

[Chris Wilson]

Quoting Tvrtko Ursulin (2019-06-17 19:12:36)
> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> 
> Scratch vma lives under gt but the API used to work on i915. Make this
> consistent by renaming the function to intel_gt_scratch_offset and make
> it take struct intel_gt.
> 
> v2:
>  * Move to intel_gt. (Chris)
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
-Chris
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Re: [RFC 23/33] drm/i915: Convert i915_gem_flush_ggtt_writes to intel_gt

[Tvrtko Ursulin]

On 17/06/2019 21:01, Chris Wilson wrote:
> Quoting Tvrtko Ursulin (2019-06-17 19:12:26)
>> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
>>
>> Having introduced struct intel_gt (named the anonymous structure in i915)
>> we can start using it to compartmentalize our code better. It makes more
>> sense logically to have the code internally like this and it will also
>> help with future split between gt and display in i915.
>>
>> v2:
>>   * Keep ggtt flush before fb obj flush. (Chris)
>>
>> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
>> ---
>>   drivers/gpu/drm/i915/gem/i915_gem_object.c    | 12 +++---
>>   .../drm/i915/gem/selftests/i915_gem_mman.c    |  3 +-
>>   drivers/gpu/drm/i915/gt/intel_gt.c            | 41 +++++++++++++++++++
>>   drivers/gpu/drm/i915/gt/intel_gt.h            |  2 +
>>   drivers/gpu/drm/i915/i915_drv.h               |  2 -
>>   drivers/gpu/drm/i915/i915_gem.c               | 40 ------------------
>>   drivers/gpu/drm/i915/i915_vma.c               |  3 +-
>>   drivers/gpu/drm/i915/selftests/i915_gem_gtt.c |  2 +-
>>   8 files changed, 54 insertions(+), 51 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.c b/drivers/gpu/drm/i915/gem/i915_gem_object.c
>> index a4047a585c8b..f58d45ae10d0 100644
>> --- a/drivers/gpu/drm/i915/gem/i915_gem_object.c
>> +++ b/drivers/gpu/drm/i915/gem/i915_gem_object.c
>> @@ -22,6 +22,7 @@
>>    *
>>    */
>>   
>> +#include "gt/intel_gt.h"
>>   #include "i915_drv.h"
>>   #include "i915_gem_clflush.h"
>>   #include "i915_gem_context.h"
>> @@ -367,7 +368,6 @@ void
>>   i915_gem_object_flush_write_domain(struct drm_i915_gem_object *obj,
>>                                     unsigned int flush_domains)
>>   {
>> -       struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
>>          struct i915_vma *vma;
>>   
>>          assert_object_held(obj);
>> @@ -377,17 +377,17 @@ i915_gem_object_flush_write_domain(struct drm_i915_gem_object *obj,
>>   
>>          switch (obj->write_domain) {
>>          case I915_GEM_DOMAIN_GTT:
>> -               i915_gem_flush_ggtt_writes(dev_priv);
>> -
>> -               intel_fb_obj_flush(obj,
>> -                                  fb_write_origin(obj, I915_GEM_DOMAIN_GTT));
>> -
>>                  for_each_ggtt_vma(vma, obj) {
>>                          if (vma->iomap)
>>                                  continue;
>>   
>> +                       intel_gt_flush_ggtt_writes(vma->vm->gt);
>>                          i915_vma_unset_ggtt_write(vma);
>> +                       break;
> 
> So we no longer flush writes from user GGTT mmaps, nor clear all the
> dirty bits? And now despite the move to be gt centric we end up assuming
> that it is still really device centric (breaking after one gt flush).

I did not realize the significance of vma->iomap and the break was not 
supposed to be there, sneaked up after some back and forth refactoring.

So it sounds like it needs to be two loops to preserve existing behaviour.

Regards,

Tvrtko
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