Re: [PATCH 1/2] drm/i915: Move intel_engine_mask_t around for use by i915_request_types.h

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On 01/04/2019 16:57, Chris Wilson wrote:
We want to use intel_engine_mask_t inside i915_request.h, which means
extracting it from the general header file mess and placing it inside a
types.h. A knock on effect is that the compiler wants to warn about
type-contraction of ALL_ENGINES into intel_engine_maskt_t, so prepare
for the worst.

v2: Use intel_engine_mask_t consistently
v3: Move I915_NUM_ENGINES to its natural home at the end of the enum

Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
Cc: John Harrison <John.C.Harrison@xxxxxxxxx>
---
  drivers/gpu/drm/i915/Makefile                 |  1 +
  drivers/gpu/drm/i915/gvt/execlist.c           | 11 ++-
  drivers/gpu/drm/i915/gvt/execlist.h           |  2 +-
  drivers/gpu/drm/i915/gvt/gvt.h                |  8 +-
  drivers/gpu/drm/i915/gvt/handlers.c           |  2 +-
  drivers/gpu/drm/i915/gvt/scheduler.c          |  8 +-
  drivers/gpu/drm/i915/gvt/scheduler.h          |  6 +-
  drivers/gpu/drm/i915/gvt/vgpu.c               |  4 +-
  drivers/gpu/drm/i915/i915_debugfs.c           |  2 +-
  drivers/gpu/drm/i915/i915_drv.h               |  1 -
  drivers/gpu/drm/i915/i915_gem.h               |  2 -
  drivers/gpu/drm/i915/i915_gem_context.c       |  6 +-
  drivers/gpu/drm/i915/i915_gem_context.h       |  2 +-
  drivers/gpu/drm/i915/i915_gem_gtt.h           |  2 +-
  drivers/gpu/drm/i915/i915_gpu_error.c         |  9 +-
  drivers/gpu/drm/i915/i915_gpu_error.h         |  2 +-
  drivers/gpu/drm/i915/i915_reset.c             | 43 ++++----
  drivers/gpu/drm/i915/i915_reset.h             |  9 +-
  drivers/gpu/drm/i915/i915_scheduler.h         | 86 +---------------
  drivers/gpu/drm/i915/i915_scheduler_types.h   | 98 +++++++++++++++++++
  drivers/gpu/drm/i915/i915_timeline.h          |  1 +
  drivers/gpu/drm/i915/i915_timeline_types.h    |  3 +-
  drivers/gpu/drm/i915/intel_device_info.h      |  3 +-
  drivers/gpu/drm/i915/intel_engine_types.h     | 12 ++-
  drivers/gpu/drm/i915/intel_guc_submission.h   |  1 +
  drivers/gpu/drm/i915/intel_hangcheck.c        |  2 +-
  .../gpu/drm/i915/selftests/i915_gem_context.c |  8 +-
  .../gpu/drm/i915/selftests/intel_hangcheck.c  |  3 +-
  .../test_i915_scheduler_types_standalone.c    |  7 ++
  29 files changed, 192 insertions(+), 152 deletions(-)
  create mode 100644 drivers/gpu/drm/i915/i915_scheduler_types.h
  create mode 100644 drivers/gpu/drm/i915/test_i915_scheduler_types_standalone.c

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 60de05f3fa60..1f3e8b145fc0 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -61,6 +61,7 @@ i915-$(CONFIG_PERF_EVENTS) += i915_pmu.o
  i915-$(CONFIG_DRM_I915_WERROR) += \
  	test_i915_active_types_standalone.o \
  	test_i915_gem_context_types_standalone.o \
+	test_i915_scheduler_types_standalone.o \
  	test_i915_timeline_types_standalone.o \
  	test_intel_context_types_standalone.o \
  	test_intel_engine_types_standalone.o \
diff --git a/drivers/gpu/drm/i915/gvt/execlist.c b/drivers/gpu/drm/i915/gvt/execlist.c
index 1a93472cb34e..f21b8fb5b37e 100644
--- a/drivers/gpu/drm/i915/gvt/execlist.c
+++ b/drivers/gpu/drm/i915/gvt/execlist.c
@@ -526,12 +526,13 @@ static void init_vgpu_execlist(struct intel_vgpu *vgpu, int ring_id)
  	vgpu_vreg(vgpu, ctx_status_ptr_reg) = ctx_status_ptr.dw;
  }
-static void clean_execlist(struct intel_vgpu *vgpu, unsigned long engine_mask)
+static void clean_execlist(struct intel_vgpu *vgpu,
+			   intel_engine_mask_t engine_mask)
  {
-	unsigned int tmp;
  	struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
  	struct intel_engine_cs *engine;
  	struct intel_vgpu_submission *s = &vgpu->submission;
+	intel_engine_mask_t tmp;
for_each_engine_masked(engine, dev_priv, engine_mask, tmp) {
  		kfree(s->ring_scan_buffer[engine->id]);
@@ -541,18 +542,18 @@ static void clean_execlist(struct intel_vgpu *vgpu, unsigned long engine_mask)
  }
static void reset_execlist(struct intel_vgpu *vgpu,
-		unsigned long engine_mask)
+			   intel_engine_mask_t engine_mask)
  {
  	struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
  	struct intel_engine_cs *engine;
-	unsigned int tmp;
+	intel_engine_mask_t tmp;
for_each_engine_masked(engine, dev_priv, engine_mask, tmp)
  		init_vgpu_execlist(vgpu, engine->id);
  }
static int init_execlist(struct intel_vgpu *vgpu,
-			 unsigned long engine_mask)
+			 intel_engine_mask_t engine_mask)
  {
  	reset_execlist(vgpu, engine_mask);
  	return 0;
diff --git a/drivers/gpu/drm/i915/gvt/execlist.h b/drivers/gpu/drm/i915/gvt/execlist.h
index 714d709829a2..5ccc2c695848 100644
--- a/drivers/gpu/drm/i915/gvt/execlist.h
+++ b/drivers/gpu/drm/i915/gvt/execlist.h
@@ -180,6 +180,6 @@ int intel_vgpu_init_execlist(struct intel_vgpu *vgpu);
  int intel_vgpu_submit_execlist(struct intel_vgpu *vgpu, int ring_id);
void intel_vgpu_reset_execlist(struct intel_vgpu *vgpu,
-		unsigned long engine_mask);
+			       intel_engine_mask_t engine_mask);
#endif /*_GVT_EXECLIST_H_*/
diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 8bce09de4b82..7a4e1a6387e5 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -144,9 +144,9 @@ enum {
struct intel_vgpu_submission_ops {
  	const char *name;
-	int (*init)(struct intel_vgpu *vgpu, unsigned long engine_mask);
-	void (*clean)(struct intel_vgpu *vgpu, unsigned long engine_mask);
-	void (*reset)(struct intel_vgpu *vgpu, unsigned long engine_mask);
+	int (*init)(struct intel_vgpu *vgpu, intel_engine_mask_t engine_mask);
+	void (*clean)(struct intel_vgpu *vgpu, intel_engine_mask_t engine_mask);
+	void (*reset)(struct intel_vgpu *vgpu, intel_engine_mask_t engine_mask);
  };
struct intel_vgpu_submission {
@@ -488,7 +488,7 @@ struct intel_vgpu *intel_gvt_create_vgpu(struct intel_gvt *gvt,
  void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu);
  void intel_gvt_release_vgpu(struct intel_vgpu *vgpu);
  void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr,
-				 unsigned int engine_mask);
+				 intel_engine_mask_t engine_mask);
  void intel_gvt_reset_vgpu(struct intel_vgpu *vgpu);
  void intel_gvt_activate_vgpu(struct intel_vgpu *vgpu);
  void intel_gvt_deactivate_vgpu(struct intel_vgpu *vgpu);
diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c
index dbc749617922..86761b1def1e 100644
--- a/drivers/gpu/drm/i915/gvt/handlers.c
+++ b/drivers/gpu/drm/i915/gvt/handlers.c
@@ -311,7 +311,7 @@ static int mul_force_wake_write(struct intel_vgpu *vgpu,
  static int gdrst_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
  			    void *p_data, unsigned int bytes)
  {
-	unsigned int engine_mask = 0;
+	intel_engine_mask_t engine_mask = 0;
  	u32 data;
write_vreg(vgpu, offset, p_data, bytes);
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c
index bf743b47b59d..9f29cd33bf20 100644
--- a/drivers/gpu/drm/i915/gvt/scheduler.c
+++ b/drivers/gpu/drm/i915/gvt/scheduler.c
@@ -850,13 +850,13 @@ static void update_guest_context(struct intel_vgpu_workload *workload)
  }
void intel_vgpu_clean_workloads(struct intel_vgpu *vgpu,
-				unsigned long engine_mask)
+				intel_engine_mask_t engine_mask)
  {
  	struct intel_vgpu_submission *s = &vgpu->submission;
  	struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
  	struct intel_engine_cs *engine;
  	struct intel_vgpu_workload *pos, *n;
-	unsigned int tmp;
+	intel_engine_mask_t tmp;
/* free the unsubmited workloads in the queues. */
  	for_each_engine_masked(engine, dev_priv, engine_mask, tmp) {
@@ -1149,7 +1149,7 @@ void intel_vgpu_clean_submission(struct intel_vgpu *vgpu)
   *
   */
  void intel_vgpu_reset_submission(struct intel_vgpu *vgpu,
-		unsigned long engine_mask)
+				 intel_engine_mask_t engine_mask)
  {
  	struct intel_vgpu_submission *s = &vgpu->submission;
@@ -1239,7 +1239,7 @@ int intel_vgpu_setup_submission(struct intel_vgpu *vgpu)
   *
   */
  int intel_vgpu_select_submission_ops(struct intel_vgpu *vgpu,
-				     unsigned long engine_mask,
+				     intel_engine_mask_t engine_mask,
  				     unsigned int interface)
  {
  	struct intel_vgpu_submission *s = &vgpu->submission;
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.h b/drivers/gpu/drm/i915/gvt/scheduler.h
index 0635b2c4bed7..90c6756f5453 100644
--- a/drivers/gpu/drm/i915/gvt/scheduler.h
+++ b/drivers/gpu/drm/i915/gvt/scheduler.h
@@ -142,12 +142,12 @@ void intel_gvt_wait_vgpu_idle(struct intel_vgpu *vgpu);
  int intel_vgpu_setup_submission(struct intel_vgpu *vgpu);
void intel_vgpu_reset_submission(struct intel_vgpu *vgpu,
-				 unsigned long engine_mask);
+				 intel_engine_mask_t engine_mask);
void intel_vgpu_clean_submission(struct intel_vgpu *vgpu); int intel_vgpu_select_submission_ops(struct intel_vgpu *vgpu,
-				     unsigned long engine_mask,
+				     intel_engine_mask_t engine_mask,
  				     unsigned int interface);
extern const struct intel_vgpu_submission_ops
@@ -160,6 +160,6 @@ intel_vgpu_create_workload(struct intel_vgpu *vgpu, int ring_id,
  void intel_vgpu_destroy_workload(struct intel_vgpu_workload *workload);
void intel_vgpu_clean_workloads(struct intel_vgpu *vgpu,
-				unsigned long engine_mask);
+				intel_engine_mask_t engine_mask);
#endif
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index 314e40121e47..44ce3c2b9ac1 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -526,11 +526,11 @@ struct intel_vgpu *intel_gvt_create_vgpu(struct intel_gvt *gvt,
   * GPU engines. For FLR, engine_mask is ignored.
   */
  void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr,
-				 unsigned int engine_mask)
+				 intel_engine_mask_t engine_mask)
  {
  	struct intel_gvt *gvt = vgpu->gvt;
  	struct intel_gvt_workload_scheduler *scheduler = &gvt->scheduler;
-	unsigned int resetting_eng = dmlr ? ALL_ENGINES : engine_mask;
+	intel_engine_mask_t resetting_eng = dmlr ? ALL_ENGINES : engine_mask;
gvt_dbg_core("------------------------------------------\n");
  	gvt_dbg_core("resseting vgpu%d, dmlr %d, engine_mask %08x\n",
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 4d5d912eaf60..a14a7bccffc1 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2245,7 +2245,7 @@ static int i915_guc_stage_pool(struct seq_file *m, void *data)
  	const struct intel_guc *guc = &dev_priv->guc;
  	struct guc_stage_desc *desc = guc->stage_desc_pool_vaddr;
  	struct intel_guc_client *client = guc->execbuf_client;
-	unsigned int tmp;
+	intel_engine_mask_t tmp;
  	int index;
if (!USES_GUC_SUBMISSION(dev_priv))
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index f75600fa77c6..20a6fc260fe0 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2455,7 +2455,6 @@ static inline unsigned int i915_sg_segment_size(void)
  #define IS_GEN9_LP(dev_priv)	(IS_GEN(dev_priv, 9) && IS_LP(dev_priv))
  #define IS_GEN9_BC(dev_priv)	(IS_GEN(dev_priv, 9) && !IS_LP(dev_priv))
-#define ALL_ENGINES (~0u)
  #define HAS_ENGINE(dev_priv, id) (INTEL_INFO(dev_priv)->engine_mask & BIT(id))
#define ENGINE_INSTANCES_MASK(dev_priv, first, count) ({ \
diff --git a/drivers/gpu/drm/i915/i915_gem.h b/drivers/gpu/drm/i915/i915_gem.h
index 5c073fe73664..9074eb1e843f 100644
--- a/drivers/gpu/drm/i915/i915_gem.h
+++ b/drivers/gpu/drm/i915/i915_gem.h
@@ -73,8 +73,6 @@ struct drm_i915_private;
  #define GEM_TRACE_DUMP_ON(expr) BUILD_BUG_ON_INVALID(expr)
  #endif
-#define I915_NUM_ENGINES 8
-
  #define I915_GEM_IDLE_TIMEOUT (HZ / 5)
void i915_gem_park(struct drm_i915_private *i915);
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 141da4e71e46..fe7ddb1f59e1 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -858,9 +858,9 @@ static void cb_retire(struct i915_active *base)
  	kfree(cb);
  }
-I915_SELFTEST_DECLARE(static unsigned long context_barrier_inject_fault);
+I915_SELFTEST_DECLARE(static intel_engine_mask_t context_barrier_inject_fault);
  static int context_barrier_task(struct i915_gem_context *ctx,
-				unsigned long engines,
+				intel_engine_mask_t engines,
  				int (*emit)(struct i915_request *rq, void *data),
  				void (*task)(void *data),
  				void *data)
@@ -922,7 +922,7 @@ static int context_barrier_task(struct i915_gem_context *ctx,
  }
int i915_gem_switch_to_kernel_context(struct drm_i915_private *i915,
-				      unsigned long mask)
+				      intel_engine_mask_t mask)
  {
  	struct intel_engine_cs *engine;
diff --git a/drivers/gpu/drm/i915/i915_gem_context.h b/drivers/gpu/drm/i915/i915_gem_context.h
index edc6ba3f0288..23dcb01bfd82 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.h
+++ b/drivers/gpu/drm/i915/i915_gem_context.h
@@ -142,7 +142,7 @@ void i915_gem_context_close(struct drm_file *file);
int i915_switch_context(struct i915_request *rq);
  int i915_gem_switch_to_kernel_context(struct drm_i915_private *i915,
-				      unsigned long engine_mask);
+				      intel_engine_mask_t engine_mask);
void i915_gem_context_release(struct kref *ctx_ref);
  struct i915_gem_context *
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 83ded9fc761a..f597f35b109b 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -390,7 +390,7 @@ struct i915_hw_ppgtt {
  	struct i915_address_space vm;
  	struct kref ref;
- unsigned long pd_dirty_engines;
+	intel_engine_mask_t pd_dirty_engines;
  	union {
  		struct i915_pml4 pml4;		/* GEN8+ & 48b PPGTT */
  		struct i915_page_directory_pointer pdp;	/* GEN8+ */
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index a2a98ccda421..f97f64a440b7 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1093,7 +1093,7 @@ static u32 capture_error_bo(struct drm_i915_error_buffer *err,
   * It's only a small step better than a random number in its current form.
   */
  static u32 i915_error_generate_code(struct i915_gpu_state *error,
-				    unsigned long engine_mask)
+				    intel_engine_mask_t engine_mask)
  {
  	/*
  	 * IPEHR would be an ideal way to detect errors, as it's the gross
@@ -1638,7 +1638,8 @@ static void capture_reg_state(struct i915_gpu_state *error)
  }
static const char *
-error_msg(struct i915_gpu_state *error, unsigned long engines, const char *msg)
+error_msg(struct i915_gpu_state *error,
+	  intel_engine_mask_t engines, const char *msg)
  {
  	int len;
  	int i;
@@ -1648,7 +1649,7 @@ error_msg(struct i915_gpu_state *error, unsigned long engines, const char *msg)
  			engines &= ~BIT(i);
len = scnprintf(error->error_msg, sizeof(error->error_msg),
-			"GPU HANG: ecode %d:%lx:0x%08x",
+			"GPU HANG: ecode %d:%x:0x%08x",
  			INTEL_GEN(error->i915), engines,
  			i915_error_generate_code(error, engines));
  	if (engines) {
@@ -1787,7 +1788,7 @@ i915_capture_gpu_state(struct drm_i915_private *i915)
   * to pick up.
   */
  void i915_capture_error_state(struct drm_i915_private *i915,
-			      unsigned long engine_mask,
+			      intel_engine_mask_t engine_mask,
  			      const char *msg)
  {
  	static bool warned;
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.h b/drivers/gpu/drm/i915/i915_gpu_error.h
index 302a14240b45..5dc761e85d9d 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.h
+++ b/drivers/gpu/drm/i915/i915_gpu_error.h
@@ -263,7 +263,7 @@ void i915_error_printf(struct drm_i915_error_state_buf *e, const char *f, ...);
struct i915_gpu_state *i915_capture_gpu_state(struct drm_i915_private *i915);
  void i915_capture_error_state(struct drm_i915_private *dev_priv,
-			      unsigned long engine_mask,
+			      intel_engine_mask_t engine_mask,
  			      const char *error_msg);
static inline struct i915_gpu_state *
diff --git a/drivers/gpu/drm/i915/i915_reset.c b/drivers/gpu/drm/i915/i915_reset.c
index 2f25ed702ba0..ddc403ee8855 100644
--- a/drivers/gpu/drm/i915/i915_reset.c
+++ b/drivers/gpu/drm/i915/i915_reset.c
@@ -144,15 +144,15 @@ static void gen3_stop_engine(struct intel_engine_cs *engine)
  }
static void i915_stop_engines(struct drm_i915_private *i915,
-			      unsigned int engine_mask)
+			      intel_engine_mask_t engine_mask)
  {
  	struct intel_engine_cs *engine;
-	enum intel_engine_id id;
+	intel_engine_mask_t tmp;
if (INTEL_GEN(i915) < 3)
  		return;
- for_each_engine_masked(engine, i915, engine_mask, id)
+	for_each_engine_masked(engine, i915, engine_mask, tmp)
  		gen3_stop_engine(engine);
  }
@@ -165,7 +165,7 @@ static bool i915_in_reset(struct pci_dev *pdev)
  }
static int i915_do_reset(struct drm_i915_private *i915,
-			 unsigned int engine_mask,
+			 intel_engine_mask_t engine_mask,
  			 unsigned int retry)
  {
  	struct pci_dev *pdev = i915->drm.pdev;
@@ -194,7 +194,7 @@ static bool g4x_reset_complete(struct pci_dev *pdev)
  }
static int g33_do_reset(struct drm_i915_private *i915,
-			unsigned int engine_mask,
+			intel_engine_mask_t engine_mask,
  			unsigned int retry)
  {
  	struct pci_dev *pdev = i915->drm.pdev;
@@ -204,7 +204,7 @@ static int g33_do_reset(struct drm_i915_private *i915,
  }
static int g4x_do_reset(struct drm_i915_private *dev_priv,
-			unsigned int engine_mask,
+			intel_engine_mask_t engine_mask,
  			unsigned int retry)
  {
  	struct pci_dev *pdev = dev_priv->drm.pdev;
@@ -242,7 +242,7 @@ static int g4x_do_reset(struct drm_i915_private *dev_priv,
  }
static int ironlake_do_reset(struct drm_i915_private *dev_priv,
-			     unsigned int engine_mask,
+			     intel_engine_mask_t engine_mask,
  			     unsigned int retry)
  {
  	struct intel_uncore *uncore = &dev_priv->uncore;
@@ -303,7 +303,7 @@ static int gen6_hw_domain_reset(struct drm_i915_private *dev_priv,
  }
static int gen6_reset_engines(struct drm_i915_private *i915,
-			      unsigned int engine_mask,
+			      intel_engine_mask_t engine_mask,
  			      unsigned int retry)
  {
  	struct intel_engine_cs *engine;
@@ -319,7 +319,7 @@ static int gen6_reset_engines(struct drm_i915_private *i915,
  	if (engine_mask == ALL_ENGINES) {
  		hw_mask = GEN6_GRDOM_FULL;
  	} else {
-		unsigned int tmp;
+		intel_engine_mask_t tmp;
hw_mask = 0;
  		for_each_engine_masked(engine, i915, engine_mask, tmp) {
@@ -429,7 +429,7 @@ static void gen11_unlock_sfc(struct drm_i915_private *dev_priv,
  }
static int gen11_reset_engines(struct drm_i915_private *i915,
-			       unsigned int engine_mask,
+			       intel_engine_mask_t engine_mask,
  			       unsigned int retry)
  {
  	const u32 hw_engine_mask[] = {
@@ -443,7 +443,7 @@ static int gen11_reset_engines(struct drm_i915_private *i915,
  		[VECS1] = GEN11_GRDOM_VECS2,
  	};
  	struct intel_engine_cs *engine;
-	unsigned int tmp;
+	intel_engine_mask_t tmp;
  	u32 hw_mask;
  	int ret;
@@ -496,12 +496,12 @@ static void gen8_engine_reset_cancel(struct intel_engine_cs *engine)
  }
static int gen8_reset_engines(struct drm_i915_private *i915,
-			      unsigned int engine_mask,
+			      intel_engine_mask_t engine_mask,
  			      unsigned int retry)
  {
  	struct intel_engine_cs *engine;
  	const bool reset_non_ready = retry >= 1;
-	unsigned int tmp;
+	intel_engine_mask_t tmp;
  	int ret;
for_each_engine_masked(engine, i915, engine_mask, tmp) {
@@ -537,7 +537,7 @@ static int gen8_reset_engines(struct drm_i915_private *i915,
  }
typedef int (*reset_func)(struct drm_i915_private *,
-			  unsigned int engine_mask,
+			  intel_engine_mask_t engine_mask,
  			  unsigned int retry);
static reset_func intel_get_gpu_reset(struct drm_i915_private *i915)
@@ -558,7 +558,8 @@ static reset_func intel_get_gpu_reset(struct drm_i915_private *i915)
  		return NULL;
  }
-int intel_gpu_reset(struct drm_i915_private *i915, unsigned int engine_mask)
+int intel_gpu_reset(struct drm_i915_private *i915,
+		    intel_engine_mask_t engine_mask)
  {
  	const int retries = engine_mask == ALL_ENGINES ? RESET_MAX_RETRIES : 1;
  	reset_func reset;
@@ -692,7 +693,8 @@ static void gt_revoke(struct drm_i915_private *i915)
  	revoke_mmaps(i915);
  }
-static int gt_reset(struct drm_i915_private *i915, unsigned int stalled_mask)
+static int gt_reset(struct drm_i915_private *i915,
+		    intel_engine_mask_t stalled_mask)
  {
  	struct intel_engine_cs *engine;
  	enum intel_engine_id id;
@@ -951,7 +953,8 @@ bool i915_gem_unset_wedged(struct drm_i915_private *i915)
  	return result;
  }
-static int do_reset(struct drm_i915_private *i915, unsigned int stalled_mask)
+static int do_reset(struct drm_i915_private *i915,
+		    intel_engine_mask_t stalled_mask)
  {
  	int err, i;
@@ -986,7 +989,7 @@ static int do_reset(struct drm_i915_private *i915, unsigned int stalled_mask)
   *   - re-init display
   */
  void i915_reset(struct drm_i915_private *i915,
-		unsigned int stalled_mask,
+		intel_engine_mask_t stalled_mask,
  		const char *reason)
  {
  	struct i915_gpu_error *error = &i915->gpu_error;
@@ -1233,14 +1236,14 @@ void i915_clear_error_registers(struct drm_i915_private *dev_priv)
   * of a ring dump etc.).
   */
  void i915_handle_error(struct drm_i915_private *i915,
-		       u32 engine_mask,
+		       intel_engine_mask_t engine_mask,
  		       unsigned long flags,
  		       const char *fmt, ...)
  {
  	struct i915_gpu_error *error = &i915->gpu_error;
  	struct intel_engine_cs *engine;
  	intel_wakeref_t wakeref;
-	unsigned int tmp;
+	intel_engine_mask_t tmp;
  	char error_msg[80];
  	char *msg = NULL;
diff --git a/drivers/gpu/drm/i915/i915_reset.h b/drivers/gpu/drm/i915/i915_reset.h
index 16f2389f656f..86b1ac8116ce 100644
--- a/drivers/gpu/drm/i915/i915_reset.h
+++ b/drivers/gpu/drm/i915/i915_reset.h
@@ -11,13 +11,15 @@
  #include <linux/types.h>
  #include <linux/srcu.h>
+#include "intel_engine_types.h"
+
  struct drm_i915_private;
  struct intel_engine_cs;
  struct intel_guc;
__printf(4, 5)
  void i915_handle_error(struct drm_i915_private *i915,
-		       u32 engine_mask,
+		       intel_engine_mask_t engine_mask,
  		       unsigned long flags,
  		       const char *fmt, ...);
  #define I915_ERROR_CAPTURE BIT(0)
@@ -25,7 +27,7 @@ void i915_handle_error(struct drm_i915_private *i915,
  void i915_clear_error_registers(struct drm_i915_private *i915);
void i915_reset(struct drm_i915_private *i915,
-		unsigned int stalled_mask,
+		intel_engine_mask_t stalled_mask,
  		const char *reason);
  int i915_reset_engine(struct intel_engine_cs *engine,
  		      const char *reason);
@@ -41,7 +43,8 @@ int i915_terminally_wedged(struct drm_i915_private *i915);
  bool intel_has_gpu_reset(struct drm_i915_private *i915);
  bool intel_has_reset_engine(struct drm_i915_private *i915);
-int intel_gpu_reset(struct drm_i915_private *i915, u32 engine_mask);
+int intel_gpu_reset(struct drm_i915_private *i915,
+		    intel_engine_mask_t engine_mask);
int intel_reset_guc(struct drm_i915_private *i915); diff --git a/drivers/gpu/drm/i915/i915_scheduler.h b/drivers/gpu/drm/i915/i915_scheduler.h
index 9a1d257f3d6e..07d243acf553 100644
--- a/drivers/gpu/drm/i915/i915_scheduler.h
+++ b/drivers/gpu/drm/i915/i915_scheduler.h
@@ -8,92 +8,10 @@
  #define _I915_SCHEDULER_H_
#include <linux/bitops.h>
+#include <linux/list.h>
  #include <linux/kernel.h>
-#include <uapi/drm/i915_drm.h>
-
-struct drm_i915_private;
-struct i915_request;
-struct intel_engine_cs;
-
-enum {
-	I915_PRIORITY_MIN = I915_CONTEXT_MIN_USER_PRIORITY - 1,
-	I915_PRIORITY_NORMAL = I915_CONTEXT_DEFAULT_PRIORITY,
-	I915_PRIORITY_MAX = I915_CONTEXT_MAX_USER_PRIORITY + 1,
-
-	I915_PRIORITY_INVALID = INT_MIN
-};
-
-#define I915_USER_PRIORITY_SHIFT 3
-#define I915_USER_PRIORITY(x) ((x) << I915_USER_PRIORITY_SHIFT)
-
-#define I915_PRIORITY_COUNT BIT(I915_USER_PRIORITY_SHIFT)
-#define I915_PRIORITY_MASK (I915_PRIORITY_COUNT - 1)
-
-#define I915_PRIORITY_WAIT		((u8)BIT(0))
-#define I915_PRIORITY_NEWCLIENT		((u8)BIT(1))
-#define I915_PRIORITY_NOSEMAPHORE	((u8)BIT(2))
-
-#define __NO_PREEMPTION (I915_PRIORITY_WAIT)
-
-struct i915_sched_attr {
-	/**
-	 * @priority: execution and service priority
-	 *
-	 * All clients are equal, but some are more equal than others!
-	 *
-	 * Requests from a context with a greater (more positive) value of
-	 * @priority will be executed before those with a lower @priority
-	 * value, forming a simple QoS.
-	 *
-	 * The &drm_i915_private.kernel_context is assigned the lowest priority.
-	 */
-	int priority;
-};
-
-/*
- * "People assume that time is a strict progression of cause to effect, but
- * actually, from a nonlinear, non-subjective viewpoint, it's more like a big
- * ball of wibbly-wobbly, timey-wimey ... stuff." -The Doctor, 2015
- *
- * Requests exist in a complex web of interdependencies. Each request
- * has to wait for some other request to complete before it is ready to be run
- * (e.g. we have to wait until the pixels have been rendering into a texture
- * before we can copy from it). We track the readiness of a request in terms
- * of fences, but we also need to keep the dependency tree for the lifetime
- * of the request (beyond the life of an individual fence). We use the tree
- * at various points to reorder the requests whilst keeping the requests
- * in order with respect to their various dependencies.
- *
- * There is no active component to the "scheduler". As we know the dependency
- * DAG of each request, we are able to insert it into a sorted queue when it
- * is ready, and are able to reorder its portion of the graph to accommodate
- * dynamic priority changes.
- */
-struct i915_sched_node {
-	struct list_head signalers_list; /* those before us, we depend upon */
-	struct list_head waiters_list; /* those after us, they depend upon us */
-	struct list_head link;
-	struct i915_sched_attr attr;
-	unsigned int flags;
-#define I915_SCHED_HAS_SEMAPHORE	BIT(0)
-};
-
-struct i915_dependency {
-	struct i915_sched_node *signaler;
-	struct list_head signal_link;
-	struct list_head wait_link;
-	struct list_head dfs_link;
-	unsigned long flags;
-#define I915_DEPENDENCY_ALLOC BIT(0)
-};
-
-struct i915_priolist {
-	struct list_head requests[I915_PRIORITY_COUNT];
-	struct rb_node node;
-	unsigned long used;
-	int priority;
-};
+#include "i915_scheduler_types.h"
#define priolist_for_each_request(it, plist, idx) \
  	for (idx = 0; idx < ARRAY_SIZE((plist)->requests); idx++) \
diff --git a/drivers/gpu/drm/i915/i915_scheduler_types.h b/drivers/gpu/drm/i915/i915_scheduler_types.h
new file mode 100644
index 000000000000..5c94b3eb5c81
--- /dev/null
+++ b/drivers/gpu/drm/i915/i915_scheduler_types.h
@@ -0,0 +1,98 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2018 Intel Corporation
+ */
+
+#ifndef _I915_SCHEDULER_TYPES_H_
+#define _I915_SCHEDULER_TYPES_H_
+
+#include <linux/list.h>
+#include <linux/rbtree.h>
+
+#include <uapi/drm/i915_drm.h>
+
+struct drm_i915_private;
+struct i915_request;
+struct intel_engine_cs;
+
+enum {
+	I915_PRIORITY_MIN = I915_CONTEXT_MIN_USER_PRIORITY - 1,
+	I915_PRIORITY_NORMAL = I915_CONTEXT_DEFAULT_PRIORITY,
+	I915_PRIORITY_MAX = I915_CONTEXT_MAX_USER_PRIORITY + 1,
+
+	I915_PRIORITY_INVALID = INT_MIN
+};
+
+#define I915_USER_PRIORITY_SHIFT 3
+#define I915_USER_PRIORITY(x) ((x) << I915_USER_PRIORITY_SHIFT)
+
+#define I915_PRIORITY_COUNT BIT(I915_USER_PRIORITY_SHIFT)
+#define I915_PRIORITY_MASK (I915_PRIORITY_COUNT - 1)
+
+#define I915_PRIORITY_WAIT		((u8)BIT(0))
+#define I915_PRIORITY_NEWCLIENT		((u8)BIT(1))
+#define I915_PRIORITY_NOSEMAPHORE	((u8)BIT(2))
+
+#define __NO_PREEMPTION (I915_PRIORITY_WAIT)
+
+struct i915_sched_attr {
+	/**
+	 * @priority: execution and service priority
+	 *
+	 * All clients are equal, but some are more equal than others!
+	 *
+	 * Requests from a context with a greater (more positive) value of
+	 * @priority will be executed before those with a lower @priority
+	 * value, forming a simple QoS.
+	 *
+	 * The &drm_i915_private.kernel_context is assigned the lowest priority.
+	 */
+	int priority;
+};
+
+/*
+ * "People assume that time is a strict progression of cause to effect, but
+ * actually, from a nonlinear, non-subjective viewpoint, it's more like a big
+ * ball of wibbly-wobbly, timey-wimey ... stuff." -The Doctor, 2015
+ *
+ * Requests exist in a complex web of interdependencies. Each request
+ * has to wait for some other request to complete before it is ready to be run
+ * (e.g. we have to wait until the pixels have been rendering into a texture
+ * before we can copy from it). We track the readiness of a request in terms
+ * of fences, but we also need to keep the dependency tree for the lifetime
+ * of the request (beyond the life of an individual fence). We use the tree
+ * at various points to reorder the requests whilst keeping the requests
+ * in order with respect to their various dependencies.
+ *
+ * There is no active component to the "scheduler". As we know the dependency
+ * DAG of each request, we are able to insert it into a sorted queue when it
+ * is ready, and are able to reorder its portion of the graph to accommodate
+ * dynamic priority changes.
+ */
+struct i915_sched_node {
+	struct list_head signalers_list; /* those before us, we depend upon */
+	struct list_head waiters_list; /* those after us, they depend upon us */
+	struct list_head link;
+	struct i915_sched_attr attr;
+	unsigned int flags;
+#define I915_SCHED_HAS_SEMAPHORE	BIT(0)
+};
+
+struct i915_dependency {
+	struct i915_sched_node *signaler;
+	struct list_head signal_link;
+	struct list_head wait_link;
+	struct list_head dfs_link;
+	unsigned long flags;
+#define I915_DEPENDENCY_ALLOC BIT(0)
+};
+
+struct i915_priolist {
+	struct list_head requests[I915_PRIORITY_COUNT];
+	struct rb_node node;
+	unsigned long used;
+	int priority;
+};
+
+#endif /* _I915_SCHEDULER_TYPES_H_ */
diff --git a/drivers/gpu/drm/i915/i915_timeline.h b/drivers/gpu/drm/i915/i915_timeline.h
index c1e47a423d85..4ca7f80bdf6d 100644
--- a/drivers/gpu/drm/i915/i915_timeline.h
+++ b/drivers/gpu/drm/i915/i915_timeline.h
@@ -27,6 +27,7 @@
#include <linux/lockdep.h> +#include "i915_active.h"
  #include "i915_syncmap.h"
  #include "i915_timeline_types.h"
diff --git a/drivers/gpu/drm/i915/i915_timeline_types.h b/drivers/gpu/drm/i915/i915_timeline_types.h
index 12ba3c573aa0..1f5b55d9ffb5 100644
--- a/drivers/gpu/drm/i915/i915_timeline_types.h
+++ b/drivers/gpu/drm/i915/i915_timeline_types.h
@@ -9,9 +9,10 @@
#include <linux/list.h>
  #include <linux/kref.h>
+#include <linux/mutex.h>
  #include <linux/types.h>
-#include "i915_active.h"
+#include "i915_active_types.h"
struct drm_i915_private;
  struct i915_vma;
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index 7e04b4829aba..26d65c037ea9 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -27,6 +27,7 @@
#include <uapi/drm/i915_drm.h> +#include "intel_engine_types.h"
  #include "intel_display.h"
struct drm_printer;
@@ -150,8 +151,6 @@ struct sseu_dev_info {
  	u8 eu_mask[GEN_MAX_SLICES * GEN_MAX_SUBSLICES];
  };
-typedef u8 intel_engine_mask_t;
-
  struct intel_device_info {
  	u16 gen_mask;
diff --git a/drivers/gpu/drm/i915/intel_engine_types.h b/drivers/gpu/drm/i915/intel_engine_types.h
index b3249bf6a65f..facfe42a7cce 100644
--- a/drivers/gpu/drm/i915/intel_engine_types.h
+++ b/drivers/gpu/drm/i915/intel_engine_types.h
@@ -13,8 +13,10 @@
  #include <linux/list.h>
  #include <linux/types.h>
+#include "i915_gem.h"
+#include "i915_scheduler_types.h"
+#include "i915_selftest.h"
  #include "i915_timeline_types.h"
-#include "intel_device_info.h"
  #include "intel_workarounds_types.h"
#include "i915_gem_batch_pool.h"
@@ -25,12 +27,16 @@
#define I915_CMD_HASH_ORDER 9 +struct dma_fence;
  struct drm_i915_reg_table;
  struct i915_gem_context;
  struct i915_request;
  struct i915_sched_attr;
  struct intel_uncore;
+typedef u8 intel_engine_mask_t;
+#define ALL_ENGINES ((intel_engine_mask_t)~0ul)
+
  struct intel_hw_status_page {
  	struct i915_vma *vma;
  	u32 *addr;
@@ -105,8 +111,10 @@ enum intel_engine_id {
  	VCS3,
  #define _VCS(n) (VCS0 + (n))
  	VECS0,
-	VECS1
+	VECS1,
  #define _VECS(n) (VECS0 + (n))
+	I915_NUM_ENGINES
+
  };
struct st_preempt_hang {
diff --git a/drivers/gpu/drm/i915/intel_guc_submission.h b/drivers/gpu/drm/i915/intel_guc_submission.h
index 169c54568340..aa5e6749c925 100644
--- a/drivers/gpu/drm/i915/intel_guc_submission.h
+++ b/drivers/gpu/drm/i915/intel_guc_submission.h
@@ -29,6 +29,7 @@
#include "i915_gem.h"
  #include "i915_selftest.h"
+#include "intel_engine_types.h"
struct drm_i915_private; diff --git a/drivers/gpu/drm/i915/intel_hangcheck.c b/drivers/gpu/drm/i915/intel_hangcheck.c
index 59232df11ada..3d51ed1428d4 100644
--- a/drivers/gpu/drm/i915/intel_hangcheck.c
+++ b/drivers/gpu/drm/i915/intel_hangcheck.c
@@ -221,8 +221,8 @@ static void hangcheck_declare_hang(struct drm_i915_private *i915,
  				   unsigned int stuck)
  {
  	struct intel_engine_cs *engine;
+	intel_engine_mask_t tmp;
  	char msg[80];
-	unsigned int tmp;
  	int len;
/* If some rings hung but others were still busy, only
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/selftests/i915_gem_context.c
index 45f73b8b4e6d..4e1b6efc6b22 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_context.c
@@ -1594,10 +1594,10 @@ static int igt_vm_isolation(void *arg)
  }
static __maybe_unused const char *
-__engine_name(struct drm_i915_private *i915, unsigned int engines)
+__engine_name(struct drm_i915_private *i915, intel_engine_mask_t engines)
  {
  	struct intel_engine_cs *engine;
-	unsigned int tmp;
+	intel_engine_mask_t tmp;
if (engines == ALL_ENGINES)
  		return "all";
@@ -1610,10 +1610,10 @@ __engine_name(struct drm_i915_private *i915, unsigned int engines)
static int __igt_switch_to_kernel_context(struct drm_i915_private *i915,
  					  struct i915_gem_context *ctx,
-					  unsigned int engines)
+					  intel_engine_mask_t engines)
  {
  	struct intel_engine_cs *engine;
-	unsigned int tmp;
+	intel_engine_mask_t tmp;
  	int pass;
GEM_TRACE("Testing %s\n", __engine_name(i915, engines));
diff --git a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
index 76b4fa150f2e..050bd1e19e02 100644
--- a/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
+++ b/drivers/gpu/drm/i915/selftests/intel_hangcheck.c
@@ -1124,7 +1124,8 @@ static int igt_reset_engines(void *arg)
  	return 0;
  }
-static u32 fake_hangcheck(struct drm_i915_private *i915, u32 mask)
+static u32 fake_hangcheck(struct drm_i915_private *i915,
+			  intel_engine_mask_t mask)
  {
  	u32 count = i915_reset_count(&i915->gpu_error);
diff --git a/drivers/gpu/drm/i915/test_i915_scheduler_types_standalone.c b/drivers/gpu/drm/i915/test_i915_scheduler_types_standalone.c
new file mode 100644
index 000000000000..8afa2c3719fb
--- /dev/null
+++ b/drivers/gpu/drm/i915/test_i915_scheduler_types_standalone.c
@@ -0,0 +1,7 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2019 Intel Corporation
+ */
+
+#include "i915_scheduler_types.h"


Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>

Regards,

Tvrtko
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