diff mbox

[v4] drm/i915: Compare GGTT view structs instead of types

Message ID 1427454562.4966.10.camel@jlahtine-mobl1 (mailing list archive)
State New, archived
Headers show

Commit Message

Joonas Lahtinen March 27, 2015, 11:09 a.m. UTC 
To allow for views where the view type is not defined by the view type only,
like it is in stereo or rotated 90 degree view, change the semantic to require
the whole view structure for comparison when we match a GGTT view.

This allows including parameters like offset to be included in the view which
is useful for eg. partial views.

v3:
- Rely on ggtt_view type being 0 for non-GGTT vma's, which equals to
  I915_GGTT_VIEW_NORMAL. (Daniel Vetter)
- Do not use potentially slower comparison when we only want to know if
  something is or is not a normal view.
- Rebase on top of rotated view patches. Add rotated view singleton.
- If one view is missing in comparison they're equal only if both are missing.

v4:
- Use comparison helper in obj_to_ggtt_view too. (Tvrtko Ursulin)
- Do WARN_ON if one view is NULL. (Tvrtko Ursulin)

Cc: Daniel Vetter <daniel@ffwll.ch>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> (v2)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h      |  8 ++++----
 drivers/gpu/drm/i915/i915_gem.c      | 16 +++++++++-------
 drivers/gpu/drm/i915/i915_gem_gtt.c  |  3 +++
 drivers/gpu/drm/i915/i915_gem_gtt.h  | 11 +++++++++++
 drivers/gpu/drm/i915/intel_display.c |  8 +++-----
 5 files changed, 30 insertions(+), 16 deletions(-)

Comments

Tvrtko Ursulin March 27, 2015, 11:46 a.m. UTC | #1 
Hi,

On 03/27/2015 11:09 AM, Joonas Lahtinen wrote:
> To allow for views where the view type is not defined by the view type only,
> like it is in stereo or rotated 90 degree view, change the semantic to require
> the whole view structure for comparison when we match a GGTT view.
>
> This allows including parameters like offset to be included in the view which
> is useful for eg. partial views.
>
> v3:
> - Rely on ggtt_view type being 0 for non-GGTT vma's, which equals to
>    I915_GGTT_VIEW_NORMAL. (Daniel Vetter)
> - Do not use potentially slower comparison when we only want to know if
>    something is or is not a normal view.
> - Rebase on top of rotated view patches. Add rotated view singleton.
> - If one view is missing in comparison they're equal only if both are missing.
>
> v4:
> - Use comparison helper in obj_to_ggtt_view too. (Tvrtko Ursulin)
> - Do WARN_ON if one view is NULL. (Tvrtko Ursulin)
>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> (v2)
> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

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

Regards,

Tvrtko
Daniel Vetter March 27, 2015, 2:05 p.m. UTC | #2 
On Fri, Mar 27, 2015 at 11:46:24AM +0000, Tvrtko Ursulin wrote:
> 
> Hi,
> 
> On 03/27/2015 11:09 AM, Joonas Lahtinen wrote:
> >To allow for views where the view type is not defined by the view type only,
> >like it is in stereo or rotated 90 degree view, change the semantic to require
> >the whole view structure for comparison when we match a GGTT view.
> >
> >This allows including parameters like offset to be included in the view which
> >is useful for eg. partial views.
> >
> >v3:
> >- Rely on ggtt_view type being 0 for non-GGTT vma's, which equals to
> >   I915_GGTT_VIEW_NORMAL. (Daniel Vetter)
> >- Do not use potentially slower comparison when we only want to know if
> >   something is or is not a normal view.
> >- Rebase on top of rotated view patches. Add rotated view singleton.
> >- If one view is missing in comparison they're equal only if both are missing.
> >
> >v4:
> >- Use comparison helper in obj_to_ggtt_view too. (Tvrtko Ursulin)
> >- Do WARN_ON if one view is NULL. (Tvrtko Ursulin)
> >
> >Cc: Daniel Vetter <daniel@ffwll.ch>
> >Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> (v2)
> >Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
> 
> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

Queued for -next, thanks for the patch.
-Daniel
Shuang He March 27, 2015, 3:32 p.m. UTC | #3 
Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he@intel.com)
Task id: 6076
-------------------------------------Summary-------------------------------------
Platform          Delta          drm-intel-nightly          Series Applied
PNV                                  276/276              276/276
ILK                                  303/303              303/303
SNB                                  304/304              304/304
IVB                 -2              330/330              328/330
BYT                                  287/287              287/287
HSW                                  361/361              361/361
BDW                                  309/309              309/309
-------------------------------------Detailed-------------------------------------
Platform  Test                                drm-intel-nightly          Series Applied
*IVB  igt@gem_storedw_batches_loop@normal      PASS(5)      DMESG_WARN(2)
(dmesg patch applied)drm:i915_hangcheck_elapsed[i915]]*ERROR*Hangcheck_timer_elapsed...blitter_ring_idle@Hangcheck timer elapsed... blitter ring idle
*IVB  igt@gem_storedw_batches_loop@secure-dispatch      PASS(2)      DMESG_WARN(1)PASS(1)
(dmesg patch applied)drm:i915_hangcheck_elapsed[i915]]*ERROR*Hangcheck_timer_elapsed...blitter_ring_idle@Hangcheck timer elapsed... blitter ring idle
Note: You need to pay more attention to line start with '*'
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 256369f..5aeba60 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2794,19 +2794,19 @@  void i915_gem_restore_fences(struct drm_device *dev);
 
 unsigned long
 i915_gem_obj_ggtt_offset_view(struct drm_i915_gem_object *o,
-			      enum i915_ggtt_view_type view);
+			      const struct i915_ggtt_view *view);
 unsigned long
 i915_gem_obj_offset(struct drm_i915_gem_object *o,
 		    struct i915_address_space *vm);
 static inline unsigned long
 i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *o)
 {
-	return i915_gem_obj_ggtt_offset_view(o, I915_GGTT_VIEW_NORMAL);
+	return i915_gem_obj_ggtt_offset_view(o, &i915_ggtt_view_normal);
 }
 
 bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
 bool i915_gem_obj_ggtt_bound_view(struct drm_i915_gem_object *o,
-				  enum i915_ggtt_view_type view);
+				  const struct i915_ggtt_view *view);
 bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
 			struct i915_address_space *vm);
 
@@ -2854,7 +2854,7 @@  i915_vm_to_ppgtt(struct i915_address_space *vm)
 
 static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
 {
-	return i915_gem_obj_ggtt_bound_view(obj, I915_GGTT_VIEW_NORMAL);
+	return i915_gem_obj_ggtt_bound_view(obj, &i915_ggtt_view_normal);
 }
 
 static inline unsigned long
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 3300963..5a4b564 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4131,7 +4131,7 @@  i915_gem_object_do_pin(struct drm_i915_gem_object *obj,
 
 		if (i915_vma_misplaced(vma, alignment, flags)) {
 			unsigned long offset;
-			offset = ggtt_view ? i915_gem_obj_ggtt_offset_view(obj, ggtt_view->type) :
+			offset = ggtt_view ? i915_gem_obj_ggtt_offset_view(obj, ggtt_view) :
 					     i915_gem_obj_offset(obj, vm);
 			WARN(vma->pin_count,
 			     "bo is already pinned in %s with incorrect alignment:"
@@ -4230,7 +4230,7 @@  i915_gem_object_ggtt_unpin_view(struct drm_i915_gem_object *obj,
 
 	BUG_ON(!vma);
 	WARN_ON(vma->pin_count == 0);
-	WARN_ON(!i915_gem_obj_ggtt_bound_view(obj, view->type));
+	WARN_ON(!i915_gem_obj_ggtt_bound_view(obj, view));
 
 	if (--vma->pin_count == 0 && view->type == I915_GGTT_VIEW_NORMAL)
 		obj->pin_mappable = false;
@@ -4552,7 +4552,8 @@  struct i915_vma *i915_gem_obj_to_ggtt_view(struct drm_i915_gem_object *obj,
 		return ERR_PTR(-EINVAL);
 
 	list_for_each_entry(vma, &obj->vma_list, vma_link)
-		if (vma->vm == ggtt && vma->ggtt_view.type == view->type)
+		if (vma->vm == ggtt &&
+		    i915_ggtt_view_equal(&vma->ggtt_view, view))
 			return vma;
 	return NULL;
 }
@@ -5109,13 +5110,14 @@  i915_gem_obj_offset(struct drm_i915_gem_object *o,
 
 unsigned long
 i915_gem_obj_ggtt_offset_view(struct drm_i915_gem_object *o,
-			      enum i915_ggtt_view_type view)
+			      const struct i915_ggtt_view *view)
 {
 	struct i915_address_space *ggtt = i915_obj_to_ggtt(o);
 	struct i915_vma *vma;
 
 	list_for_each_entry(vma, &o->vma_list, vma_link)
-		if (vma->vm == ggtt && vma->ggtt_view.type == view)
+		if (vma->vm == ggtt &&
+		    i915_ggtt_view_equal(&vma->ggtt_view, view))
 			return vma->node.start;
 
 	WARN(1, "global vma for this object not found.\n");
@@ -5139,14 +5141,14 @@  bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
 }
 
 bool i915_gem_obj_ggtt_bound_view(struct drm_i915_gem_object *o,
-				  enum i915_ggtt_view_type view)
+				  const struct i915_ggtt_view *view)
 {
 	struct i915_address_space *ggtt = i915_obj_to_ggtt(o);
 	struct i915_vma *vma;
 
 	list_for_each_entry(vma, &o->vma_list, vma_link)
 		if (vma->vm == ggtt &&
-		    vma->ggtt_view.type == view &&
+		    i915_ggtt_view_equal(&vma->ggtt_view, view) &&
 		    drm_mm_node_allocated(&vma->node))
 			return true;
 
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 9903bb0..13eb769 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -93,6 +93,9 @@ 
  */
 
 const struct i915_ggtt_view i915_ggtt_view_normal;
+const struct i915_ggtt_view i915_ggtt_view_rotated = {
+        .type = I915_GGTT_VIEW_ROTATED
+};
 
 static void bdw_setup_private_ppat(struct drm_i915_private *dev_priv);
 static void chv_setup_private_ppat(struct drm_i915_private *dev_priv);
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 0dad426..d559b23 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -138,6 +138,7 @@  struct i915_ggtt_view {
 };
 
 extern const struct i915_ggtt_view i915_ggtt_view_normal;
+extern const struct i915_ggtt_view i915_ggtt_view_rotated;
 
 enum i915_cache_level;
 
@@ -422,4 +423,14 @@  void i915_gem_restore_gtt_mappings(struct drm_device *dev);
 int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj);
 void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj);
 
+static inline bool
+i915_ggtt_view_equal(const struct i915_ggtt_view *a,
+                     const struct i915_ggtt_view *b)
+{
+	if (WARN_ON(!a || !b))
+		return false;
+
+	return a->type == b->type;
+}
+
 #endif
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index cb50854..d6c2e34 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2293,8 +2293,6 @@  intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
 			const struct drm_plane_state *plane_state)
 {
 	struct intel_rotation_info *info = &view->rotation_info;
-	static const struct i915_ggtt_view rotated_view =
-				{ .type = I915_GGTT_VIEW_ROTATED };
 
 	*view = i915_ggtt_view_normal;
 
@@ -2304,7 +2302,7 @@  intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
 	if (!intel_rotation_90_or_270(plane_state->rotation))
 		return 0;
 
-	*view = rotated_view;
+	*view = i915_ggtt_view_rotated;
 
 	info->height = fb->height;
 	info->pixel_format = fb->pixel_format;
@@ -2904,10 +2902,10 @@  u32 intel_fb_stride_alignment(struct drm_device *dev, uint64_t fb_modifier,
 unsigned long intel_plane_obj_offset(struct intel_plane *intel_plane,
 				     struct drm_i915_gem_object *obj)
 {
-	enum i915_ggtt_view_type view = I915_GGTT_VIEW_NORMAL;
+	const struct i915_ggtt_view *view = &i915_ggtt_view_normal;
 
 	if (intel_rotation_90_or_270(intel_plane->base.state->rotation))
-		view = I915_GGTT_VIEW_ROTATED;
+		view = &i915_ggtt_view_rotated;
 
 	return i915_gem_obj_ggtt_offset_view(obj, view);
 }