Skip to contentSkip to conversation

drm/i915/skl: Allow universal planes to position

PATCH In review Sonika Jindal 7 participants 38 messages Apr 10, 2015 – Oct 16, 2015

Subsystems (3)
lore
Share & tools
lore
#0 lore raw

PATCH 1/2 drm/i915/skl: Allow universal planes to position

---
 drivers/gpu/drm/i915/intel_display.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
drivers/gpu/drm/i915/intel_display.c +6 -1
index ceb2e61..f0bbc22 100644
@@ -12150,16 +12150,21 @@ intel_check_primary_plane(struct drm_plane *plane,
 	struct drm_rect *dest = &state->dst;
 	struct drm_rect *src = &state->src;
 	const struct drm_rect *clip = &state->clip;
+	bool can_position = false;
 	int ret;
 
 	crtc = crtc ? crtc : plane->crtc;
 	intel_crtc = to_intel_crtc(crtc);
 
+	if (INTEL_INFO(dev)->gen >= 9)
+		can_position = true;
+
 	ret = drm_plane_helper_check_update(plane, crtc, fb,
 					    src, dest, clip,
 					    DRM_PLANE_HELPER_NO_SCALING,
 					    DRM_PLANE_HELPER_NO_SCALING,
-					    false, true, &state->visible);
+					    can_position, true,
+					    &state->visible);
 	if (ret)
 		return ret;
 
Signature · 6 lines
1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#1 lore raw

PATCH 2/2 drm/i915/skl: Support for 90/270 rotation

v2: Moving creation of property in a function, checking for 90/270 rotation simultaneously (Chris)
Letting primary plane to be positioned
v3: Adding if/else for 90/270 and rest params programming, adding check for pixel_format, some cleanup (review comments)
v4: Adding right pixel_formats, using src_* params instead of crtc_* for offset and size programming (Ville)
v5: Rebased on -nightly and Tvrtko's series for gtt remapping.
v6: Rebased on -nightly (Tvrtko's series merged)
v7: Moving pixel_format check to intel_atomic_plane_check (Matt)

---
 drivers/gpu/drm/i915/i915_reg.h           |    2 +
 drivers/gpu/drm/i915/intel_atomic_plane.c |   24 ++++++++
 drivers/gpu/drm/i915/intel_display.c      |   88 ++++++++++++++++++++---------
 drivers/gpu/drm/i915/intel_drv.h          |    6 ++
 drivers/gpu/drm/i915/intel_sprite.c       |   52 ++++++++++++-----
 5 files changed, 131 insertions(+), 41 deletions(-)
drivers/gpu/drm/i915/i915_reg.h +2 -0
index b522eb6..564bbd5 100644
@@ -4854,7 +4854,9 @@ enum skl_disp_power_wells {
 #define   PLANE_CTL_ALPHA_HW_PREMULTIPLY	(  3 << 4)
 #define   PLANE_CTL_ROTATE_MASK			0x3
 #define   PLANE_CTL_ROTATE_0			0x0
+#define   PLANE_CTL_ROTATE_90			0x1
 #define   PLANE_CTL_ROTATE_180			0x2
+#define   PLANE_CTL_ROTATE_270			0x3
 #define _PLANE_STRIDE_1_A			0x70188
 #define _PLANE_STRIDE_2_A			0x70288
 #define _PLANE_STRIDE_3_A			0x70388
drivers/gpu/drm/i915/intel_atomic_plane.c +24 -0
index 976b891..a27ee8c 100644
@@ -162,6 +162,30 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
 			(1 << drm_plane_index(plane));
 	}
 
+	if (state->fb && intel_rotation_90_or_270(state->rotation)) {
+		if (!(state->fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||
+			state->fb->modifier[0] == I915_FORMAT_MOD_Yf_TILED)) {
+			DRM_DEBUG_KMS("Y/Yf tiling required for 90/270!\n");
+			return -EINVAL;
+		}
+
+		/*
+		 * 90/270 is not allowed with RGB64 16:16:16:16,
+		 * RGB 16-bit 5:6:5, and Indexed 8-bit.
+		 * TBD: Add RGB64 case once its added in supported format list.
+		 */
+		switch (state->fb->pixel_format) {
+		case DRM_FORMAT_C8:
+		case DRM_FORMAT_RGB565:
+			DRM_DEBUG_KMS("Unsupported pixel format %s for 90/270!\n",
+					drm_get_format_name(state->fb->pixel_format));
+			return -EINVAL;
+
+		default:
+			break;
+		}
+	}
+
 	return intel_plane->check_plane(plane, intel_state);
 }
 
drivers/gpu/drm/i915/intel_display.c +62 -26

127 lines not on this page · raw message

drivers/gpu/drm/i915/intel_drv.h +6 -0
index 811a1db..d32025a 100644
@@ -995,6 +995,12 @@ intel_rotation_90_or_270(unsigned int rotation)
 	return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
 }
 
+unsigned int
+intel_tile_height(struct drm_device *dev, uint32_t bits_per_pixel,
+		  uint64_t fb_modifier);
+void intel_create_rotation_property(struct drm_device *dev,
+					struct intel_plane *plane);
+
 bool intel_wm_need_update(struct drm_plane *plane,
 			  struct drm_plane_state *state);
 
drivers/gpu/drm/i915/intel_sprite.c +37 -15

81 lines not on this page · raw message

Signature · 6 lines
1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#2 lore raw

Re: [PATCH 2/2] drm/i915/skl: Support for 90/270 rotation

Quoted 11 lines · Sonika Jindal

v2: Moving creation of property in a function, checking for 90/270 rotation simultaneously (Chris)
Letting primary plane to be positioned
v3: Adding if/else for 90/270 and rest params programming, adding check for pixel_format, some cleanup (review comments)
v4: Adding right pixel_formats, using src_* params instead of crtc_* for offset and size programming (Ville)
v5: Rebased on -nightly and Tvrtko's series for gtt remapping.
v6: Rebased on -nightly (Tvrtko's series merged)
v7: Moving pixel_format check to intel_atomic_plane_check (Matt)

Quoted 2 lines

Patches are missing the Testcase: tag, please add that. Also, are all the igt committed or not yet? Pulled these two in meanwhile. -Daniel

Quoted 305 lines
---
 drivers/gpu/drm/i915/i915_reg.h           |    2 +
 drivers/gpu/drm/i915/intel_atomic_plane.c |   24 ++++++++
 drivers/gpu/drm/i915/intel_display.c      |   88 ++++++++++++++++++++---------
 drivers/gpu/drm/i915/intel_drv.h          |    6 ++
 drivers/gpu/drm/i915/intel_sprite.c       |   52 ++++++++++++-----
 5 files changed, 131 insertions(+), 41 deletions(-)
drivers/gpu/drm/i915/i915_reg.h +2 -0
index b522eb6..564bbd5 100644
@@ -4854,7 +4854,9 @@ enum skl_disp_power_wells {
 #define   PLANE_CTL_ALPHA_HW_PREMULTIPLY	(  3 << 4)
 #define   PLANE_CTL_ROTATE_MASK			0x3
 #define   PLANE_CTL_ROTATE_0			0x0
+#define   PLANE_CTL_ROTATE_90			0x1
 #define   PLANE_CTL_ROTATE_180			0x2
+#define   PLANE_CTL_ROTATE_270			0x3
 #define _PLANE_STRIDE_1_A			0x70188
 #define _PLANE_STRIDE_2_A			0x70288
 #define _PLANE_STRIDE_3_A			0x70388
drivers/gpu/drm/i915/intel_atomic_plane.c +24 -0
index 976b891..a27ee8c 100644
@@ -162,6 +162,30 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
 			(1 << drm_plane_index(plane));
 	}
 
+	if (state->fb && intel_rotation_90_or_270(state->rotation)) {
+		if (!(state->fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||
+			state->fb->modifier[0] == I915_FORMAT_MOD_Yf_TILED)) {
+			DRM_DEBUG_KMS("Y/Yf tiling required for 90/270!\n");
+			return -EINVAL;
+		}
+
+		/*
+		 * 90/270 is not allowed with RGB64 16:16:16:16,
+		 * RGB 16-bit 5:6:5, and Indexed 8-bit.
+		 * TBD: Add RGB64 case once its added in supported format list.
+		 */
+		switch (state->fb->pixel_format) {
+		case DRM_FORMAT_C8:
+		case DRM_FORMAT_RGB565:
+			DRM_DEBUG_KMS("Unsupported pixel format %s for 90/270!\n",
+					drm_get_format_name(state->fb->pixel_format));
+			return -EINVAL;
+
+		default:
+			break;
+		}
+	}
+
 	return intel_plane->check_plane(plane, intel_state);
 }
 
drivers/gpu/drm/i915/intel_display.c +62 -26
index f0bbc22..4de544c 100644
@@ -2311,13 +2311,6 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
 	info->pitch = fb->pitches[0];
 	info->fb_modifier = fb->modifier[0];
 
-	if (!(info->fb_modifier == I915_FORMAT_MOD_Y_TILED ||
-	      info->fb_modifier == I915_FORMAT_MOD_Yf_TILED)) {
-		DRM_DEBUG_KMS(
-			      "Y or Yf tiling is needed for 90/270 rotation!\n");
-		return -EINVAL;
-	}
-
 	return 0;
 }
 
@@ -2919,8 +2912,12 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct drm_i915_gem_object *obj;
 	int pipe = intel_crtc->pipe;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
 	unsigned long surf_addr;
+	struct drm_plane *plane;
 
 	if (!intel_crtc->primary_enabled) {
 		I915_WRITE(PLANE_CTL(pipe, 0), 0);
@@ -2981,21 +2978,51 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
 	}
 
 	plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE;
-	if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180))
+
+	plane = crtc->primary;
+	rotation = plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
 		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
 	obj = intel_fb_obj(fb);
 	stride_div = intel_fb_stride_alignment(dev, fb->modifier[0],
 					       fb->pixel_format);
-	surf_addr = intel_plane_obj_offset(to_intel_plane(crtc->primary), obj);
+	surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj);
+
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride = Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+						fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		x_offset = stride * tile_height - y - (plane->state->src_h >> 16);
+		y_offset = x;
+		plane_size = ((plane->state->src_w >> 16) - 1) << 16 |
+					((plane->state->src_h >> 16) - 1);
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		x_offset = x;
+		y_offset = y;
+		plane_size = ((plane->state->src_h >> 16) - 1) << 16 |
+			((plane->state->src_w >> 16) - 1);
+	}
+	plane_offset = y_offset << 16 | x_offset;
 
 	I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl);
 	I915_WRITE(PLANE_POS(pipe, 0), 0);
-	I915_WRITE(PLANE_OFFSET(pipe, 0), (y << 16) | x);
-	I915_WRITE(PLANE_SIZE(pipe, 0),
-		   (intel_crtc->config->pipe_src_h - 1) << 16 |
-		   (intel_crtc->config->pipe_src_w - 1));
-	I915_WRITE(PLANE_STRIDE(pipe, 0), fb->pitches[0] / stride_div);
+	I915_WRITE(PLANE_OFFSET(pipe, 0), plane_offset);
+	I915_WRITE(PLANE_SIZE(pipe, 0), plane_size);
+	I915_WRITE(PLANE_STRIDE(pipe, 0), stride);
 	I915_WRITE(PLANE_SURF(pipe, 0), surf_addr);
 
 	POSTING_READ(PLANE_SURF(pipe, 0));
@@ -12406,23 +12433,32 @@ static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
 				 intel_primary_formats, num_formats,
 				 DRM_PLANE_TYPE_PRIMARY);
 
-	if (INTEL_INFO(dev)->gen >= 4) {
-		if (!dev->mode_config.rotation_property)
-			dev->mode_config.rotation_property =
-				drm_mode_create_rotation_property(dev,
-							BIT(DRM_ROTATE_0) |
-							BIT(DRM_ROTATE_180));
-		if (dev->mode_config.rotation_property)
-			drm_object_attach_property(&primary->base.base,
-				dev->mode_config.rotation_property,
-				state->base.rotation);
-	}
+	if (INTEL_INFO(dev)->gen >= 4)
+		intel_create_rotation_property(dev, primary);
 
 	drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs);
 
 	return &primary->base;
 }
 
+void intel_create_rotation_property(struct drm_device *dev, struct intel_plane *plane)
+{
+	if (!dev->mode_config.rotation_property) {
+		unsigned long flags = BIT(DRM_ROTATE_0) |
+			BIT(DRM_ROTATE_180);
+
+		if (INTEL_INFO(dev)->gen >= 9)
+			flags |= BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270);
+
+		dev->mode_config.rotation_property =
+			drm_mode_create_rotation_property(dev, flags);
+	}
+	if (dev->mode_config.rotation_property)
+		drm_object_attach_property(&plane->base.base,
+				dev->mode_config.rotation_property,
+				plane->base.state->rotation);
+}
+
 static int
 intel_check_cursor_plane(struct drm_plane *plane,
 			 struct intel_plane_state *state)
drivers/gpu/drm/i915/intel_drv.h +6 -0
index 811a1db..d32025a 100644
@@ -995,6 +995,12 @@ intel_rotation_90_or_270(unsigned int rotation)
 	return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
 }
 
+unsigned int
+intel_tile_height(struct drm_device *dev, uint32_t bits_per_pixel,
+		  uint64_t fb_modifier);
+void intel_create_rotation_property(struct drm_device *dev,
+					struct intel_plane *plane);
+
 bool intel_wm_need_update(struct drm_plane *plane,
 			  struct drm_plane_state *state);
 
drivers/gpu/drm/i915/intel_sprite.c +37 -15
index f41e872..83adc9b 100644
@@ -190,10 +190,13 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
 	const int pipe = intel_plane->pipe;
 	const int plane = intel_plane->plane + 1;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
 	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
 	const struct drm_intel_sprite_colorkey *key = &intel_plane->ckey;
 	unsigned long surf_addr;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
 
 	plane_ctl = PLANE_CTL_ENABLE |
 		PLANE_CTL_PIPE_CSC_ENABLE;
@@ -254,8 +257,20 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 		MISSING_CASE(fb->modifier[0]);
 	}
 
-	if (drm_plane->state->rotation == BIT(DRM_ROTATE_180))
+	rotation = drm_plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
 		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
 	intel_update_sprite_watermarks(drm_plane, crtc, src_w, src_h,
 				       pixel_size, true,
@@ -283,10 +298,26 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 
 	surf_addr = intel_plane_obj_offset(intel_plane, obj);
 
-	I915_WRITE(PLANE_OFFSET(pipe, plane), (y << 16) | x);
-	I915_WRITE(PLANE_STRIDE(pipe, plane), fb->pitches[0] / stride_div);
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride: Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+							fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		plane_size = (src_w << 16) | src_h;
+		x_offset = stride * tile_height - y - (src_h + 1);
+		y_offset = x;
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		plane_size = (src_h << 16) | src_w;
+		x_offset = x;
+		y_offset = y;
+	}
+	plane_offset = y_offset << 16 | x_offset;
+
+	I915_WRITE(PLANE_OFFSET(pipe, plane), plane_offset);
+	I915_WRITE(PLANE_STRIDE(pipe, plane), stride);
 	I915_WRITE(PLANE_POS(pipe, plane), (crtc_y << 16) | crtc_x);
-	I915_WRITE(PLANE_SIZE(pipe, plane), (crtc_h << 16) | crtc_w);
+	I915_WRITE(PLANE_SIZE(pipe, plane), plane_size);
 	I915_WRITE(PLANE_CTL(pipe, plane), plane_ctl);
 	I915_WRITE(PLANE_SURF(pipe, plane), surf_addr);
 	POSTING_READ(PLANE_SURF(pipe, plane));
@@ -1310,16 +1341,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
 		goto out;
 	}
 
-	if (!dev->mode_config.rotation_property)
-		dev->mode_config.rotation_property =
-			drm_mode_create_rotation_property(dev,
-							  BIT(DRM_ROTATE_0) |
-							  BIT(DRM_ROTATE_180));
-
-	if (dev->mode_config.rotation_property)
-		drm_object_attach_property(&intel_plane->base.base,
-					   dev->mode_config.rotation_property,
-					   state->base.rotation);
+	intel_create_rotation_property(dev, intel_plane);
 
 	drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
 
Signature · 6 lines
1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Signature · 7 lines
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#3 lore raw

Re: [PATCH 2/2] drm/i915/skl: Support for 90/270 rotation

Quoted 12 lines · Daniel Vetter
Quoted 11 lines · Sonika Jindal

v2: Moving creation of property in a function, checking for 90/270 rotation simultaneously (Chris)
Letting primary plane to be positioned
v3: Adding if/else for 90/270 and rest params programming, adding check for pixel_format, some cleanup (review comments)
v4: Adding right pixel_formats, using src_* params instead of crtc_* for offset and size programming (Ville)
v5: Rebased on -nightly and Tvrtko's series for gtt remapping.
v6: Rebased on -nightly (Tvrtko's series merged)
v7: Moving pixel_format check to intel_atomic_plane_check (Matt)

Quoted 5 lines
Quoted 2 lines

Patches are missing the Testcase: tag, please add that. Also, are all the igt committed or not yet? Pulled these two in meanwhile.

Things are going somewhat broken because you didn't apply my plane state stuff. Hmm. Actually it sort of looks that it might work by luck as long as the primary plane doesn't get clipped since this is bashing the user state directly into the hardware registers and not the derived state (ie. clipped coordinates).

Also I see my review comment about the 90 vs. 270 rotation mixup was ignored at least.

Quoted 316 lines

-Daniel

Quoted 305 lines
---
 drivers/gpu/drm/i915/i915_reg.h           |    2 +
 drivers/gpu/drm/i915/intel_atomic_plane.c |   24 ++++++++
 drivers/gpu/drm/i915/intel_display.c      |   88 ++++++++++++++++++++---------
 drivers/gpu/drm/i915/intel_drv.h          |    6 ++
 drivers/gpu/drm/i915/intel_sprite.c       |   52 ++++++++++++-----
 5 files changed, 131 insertions(+), 41 deletions(-)
drivers/gpu/drm/i915/i915_reg.h +2 -0
index b522eb6..564bbd5 100644
@@ -4854,7 +4854,9 @@ enum skl_disp_power_wells {
 #define   PLANE_CTL_ALPHA_HW_PREMULTIPLY	(  3 << 4)
 #define   PLANE_CTL_ROTATE_MASK			0x3
 #define   PLANE_CTL_ROTATE_0			0x0
+#define   PLANE_CTL_ROTATE_90			0x1
 #define   PLANE_CTL_ROTATE_180			0x2
+#define   PLANE_CTL_ROTATE_270			0x3
 #define _PLANE_STRIDE_1_A			0x70188
 #define _PLANE_STRIDE_2_A			0x70288
 #define _PLANE_STRIDE_3_A			0x70388
drivers/gpu/drm/i915/intel_atomic_plane.c +24 -0
index 976b891..a27ee8c 100644
@@ -162,6 +162,30 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
 			(1 << drm_plane_index(plane));
 	}
 
+	if (state->fb && intel_rotation_90_or_270(state->rotation)) {
+		if (!(state->fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||
+			state->fb->modifier[0] == I915_FORMAT_MOD_Yf_TILED)) {
+			DRM_DEBUG_KMS("Y/Yf tiling required for 90/270!\n");
+			return -EINVAL;
+		}
+
+		/*
+		 * 90/270 is not allowed with RGB64 16:16:16:16,
+		 * RGB 16-bit 5:6:5, and Indexed 8-bit.
+		 * TBD: Add RGB64 case once its added in supported format list.
+		 */
+		switch (state->fb->pixel_format) {
+		case DRM_FORMAT_C8:
+		case DRM_FORMAT_RGB565:
+			DRM_DEBUG_KMS("Unsupported pixel format %s for 90/270!\n",
+					drm_get_format_name(state->fb->pixel_format));
+			return -EINVAL;
+
+		default:
+			break;
+		}
+	}
+
 	return intel_plane->check_plane(plane, intel_state);
 }
 
drivers/gpu/drm/i915/intel_display.c +62 -26
index f0bbc22..4de544c 100644
@@ -2311,13 +2311,6 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
 	info->pitch = fb->pitches[0];
 	info->fb_modifier = fb->modifier[0];
 
-	if (!(info->fb_modifier == I915_FORMAT_MOD_Y_TILED ||
-	      info->fb_modifier == I915_FORMAT_MOD_Yf_TILED)) {
-		DRM_DEBUG_KMS(
-			      "Y or Yf tiling is needed for 90/270 rotation!\n");
-		return -EINVAL;
-	}
-
 	return 0;
 }
 
@@ -2919,8 +2912,12 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct drm_i915_gem_object *obj;
 	int pipe = intel_crtc->pipe;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
 	unsigned long surf_addr;
+	struct drm_plane *plane;
 
 	if (!intel_crtc->primary_enabled) {
 		I915_WRITE(PLANE_CTL(pipe, 0), 0);
@@ -2981,21 +2978,51 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
 	}
 
 	plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE;
-	if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180))
+
+	plane = crtc->primary;
+	rotation = plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
 		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
 	obj = intel_fb_obj(fb);
 	stride_div = intel_fb_stride_alignment(dev, fb->modifier[0],
 					       fb->pixel_format);
-	surf_addr = intel_plane_obj_offset(to_intel_plane(crtc->primary), obj);
+	surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj);
+
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride = Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+						fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		x_offset = stride * tile_height - y - (plane->state->src_h >> 16);
+		y_offset = x;
+		plane_size = ((plane->state->src_w >> 16) - 1) << 16 |
+					((plane->state->src_h >> 16) - 1);
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		x_offset = x;
+		y_offset = y;
+		plane_size = ((plane->state->src_h >> 16) - 1) << 16 |
+			((plane->state->src_w >> 16) - 1);
+	}
+	plane_offset = y_offset << 16 | x_offset;
 
 	I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl);
 	I915_WRITE(PLANE_POS(pipe, 0), 0);
-	I915_WRITE(PLANE_OFFSET(pipe, 0), (y << 16) | x);
-	I915_WRITE(PLANE_SIZE(pipe, 0),
-		   (intel_crtc->config->pipe_src_h - 1) << 16 |
-		   (intel_crtc->config->pipe_src_w - 1));
-	I915_WRITE(PLANE_STRIDE(pipe, 0), fb->pitches[0] / stride_div);
+	I915_WRITE(PLANE_OFFSET(pipe, 0), plane_offset);
+	I915_WRITE(PLANE_SIZE(pipe, 0), plane_size);
+	I915_WRITE(PLANE_STRIDE(pipe, 0), stride);
 	I915_WRITE(PLANE_SURF(pipe, 0), surf_addr);
 
 	POSTING_READ(PLANE_SURF(pipe, 0));
@@ -12406,23 +12433,32 @@ static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
 				 intel_primary_formats, num_formats,
 				 DRM_PLANE_TYPE_PRIMARY);
 
-	if (INTEL_INFO(dev)->gen >= 4) {
-		if (!dev->mode_config.rotation_property)
-			dev->mode_config.rotation_property =
-				drm_mode_create_rotation_property(dev,
-							BIT(DRM_ROTATE_0) |
-							BIT(DRM_ROTATE_180));
-		if (dev->mode_config.rotation_property)
-			drm_object_attach_property(&primary->base.base,
-				dev->mode_config.rotation_property,
-				state->base.rotation);
-	}
+	if (INTEL_INFO(dev)->gen >= 4)
+		intel_create_rotation_property(dev, primary);
 
 	drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs);
 
 	return &primary->base;
 }
 
+void intel_create_rotation_property(struct drm_device *dev, struct intel_plane *plane)
+{
+	if (!dev->mode_config.rotation_property) {
+		unsigned long flags = BIT(DRM_ROTATE_0) |
+			BIT(DRM_ROTATE_180);
+
+		if (INTEL_INFO(dev)->gen >= 9)
+			flags |= BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270);
+
+		dev->mode_config.rotation_property =
+			drm_mode_create_rotation_property(dev, flags);
+	}
+	if (dev->mode_config.rotation_property)
+		drm_object_attach_property(&plane->base.base,
+				dev->mode_config.rotation_property,
+				plane->base.state->rotation);
+}
+
 static int
 intel_check_cursor_plane(struct drm_plane *plane,
 			 struct intel_plane_state *state)
drivers/gpu/drm/i915/intel_drv.h +6 -0
index 811a1db..d32025a 100644
@@ -995,6 +995,12 @@ intel_rotation_90_or_270(unsigned int rotation)
 	return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
 }
 
+unsigned int
+intel_tile_height(struct drm_device *dev, uint32_t bits_per_pixel,
+		  uint64_t fb_modifier);
+void intel_create_rotation_property(struct drm_device *dev,
+					struct intel_plane *plane);
+
 bool intel_wm_need_update(struct drm_plane *plane,
 			  struct drm_plane_state *state);
 
drivers/gpu/drm/i915/intel_sprite.c +37 -15
index f41e872..83adc9b 100644
@@ -190,10 +190,13 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
 	const int pipe = intel_plane->pipe;
 	const int plane = intel_plane->plane + 1;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
 	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
 	const struct drm_intel_sprite_colorkey *key = &intel_plane->ckey;
 	unsigned long surf_addr;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
 
 	plane_ctl = PLANE_CTL_ENABLE |
 		PLANE_CTL_PIPE_CSC_ENABLE;
@@ -254,8 +257,20 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 		MISSING_CASE(fb->modifier[0]);
 	}
 
-	if (drm_plane->state->rotation == BIT(DRM_ROTATE_180))
+	rotation = drm_plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
 		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
 	intel_update_sprite_watermarks(drm_plane, crtc, src_w, src_h,
 				       pixel_size, true,
@@ -283,10 +298,26 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 
 	surf_addr = intel_plane_obj_offset(intel_plane, obj);
 
-	I915_WRITE(PLANE_OFFSET(pipe, plane), (y << 16) | x);
-	I915_WRITE(PLANE_STRIDE(pipe, plane), fb->pitches[0] / stride_div);
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride: Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+							fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		plane_size = (src_w << 16) | src_h;
+		x_offset = stride * tile_height - y - (src_h + 1);
+		y_offset = x;
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		plane_size = (src_h << 16) | src_w;
+		x_offset = x;
+		y_offset = y;
+	}
+	plane_offset = y_offset << 16 | x_offset;
+
+	I915_WRITE(PLANE_OFFSET(pipe, plane), plane_offset);
+	I915_WRITE(PLANE_STRIDE(pipe, plane), stride);
 	I915_WRITE(PLANE_POS(pipe, plane), (crtc_y << 16) | crtc_x);
-	I915_WRITE(PLANE_SIZE(pipe, plane), (crtc_h << 16) | crtc_w);
+	I915_WRITE(PLANE_SIZE(pipe, plane), plane_size);
 	I915_WRITE(PLANE_CTL(pipe, plane), plane_ctl);
 	I915_WRITE(PLANE_SURF(pipe, plane), surf_addr);
 	POSTING_READ(PLANE_SURF(pipe, plane));
@@ -1310,16 +1341,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
 		goto out;
 	}
 
-	if (!dev->mode_config.rotation_property)
-		dev->mode_config.rotation_property =
-			drm_mode_create_rotation_property(dev,
-							  BIT(DRM_ROTATE_0) |
-							  BIT(DRM_ROTATE_180));
-
-	if (dev->mode_config.rotation_property)
-		drm_object_attach_property(&intel_plane->base.base,
-					   dev->mode_config.rotation_property,
-					   state->base.rotation);
+	intel_create_rotation_property(dev, intel_plane);
 
 	drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
 
Signature · 6 lines
1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Signature · 7 lines
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Signature · 6 lines
Ville Syrjälä
Intel OTC
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#4 lore raw

Re: [PATCH 2/2] drm/i915/skl: Support for 90/270 rotation

Quoted 16 lines · Ville Syrjälä
Quoted 15 lines · Daniel Vetter
Quoted 13 lines · Sonika Jindal

v2: Moving creation of property in a function, checking for 90/270 rotation simultaneously (Chris)
Letting primary plane to be positioned
v3: Adding if/else for 90/270 and rest params programming, adding check for pixel_format, some cleanup (review comments)
v4: Adding right pixel_formats, using src_* params instead of crtc_* for offset and size programming (Ville)
v5: Rebased on -nightly and Tvrtko's series for gtt remapping.
v6: Rebased on -nightly (Tvrtko's series merged)
v7: Moving pixel_format check to intel_atomic_plane_check (Matt)

Quoted 9 lines
Quoted 2 lines

Patches are missing the Testcase: tag, please add that. Also, are all the igt committed or not yet? Pulled these two in meanwhile.

Things are going somewhat broken because you didn't apply my plane state stuff. Hmm. Actually it sort of looks that it might work by luck as long as the primary plane doesn't get clipped since this is bashing the user state directly into the hardware registers and not the derived state (ie. clipped coordinates).

I was hoping your changes get merged, but not sure why they are held up.

Quoted 3 lines

Also I see my review comment about the 90 vs. 270 rotation mixup was ignored at least.

I never really got the to understand the need of reversing 90 and 270 :) The last discussion was not concluded, AFAIR. Things look correct to me and work fine with the testcase also.
Is there something completely different which I am unable to get?

-Sonika

Quoted 303 lines
Quoted 303 lines

-Daniel

Quoted 301 lines
---
  drivers/gpu/drm/i915/i915_reg.h           |    2 +
  drivers/gpu/drm/i915/intel_atomic_plane.c |   24 ++++++++
  drivers/gpu/drm/i915/intel_display.c      |   88 ++++++++++++++++++++---------
  drivers/gpu/drm/i915/intel_drv.h          |    6 ++
  drivers/gpu/drm/i915/intel_sprite.c       |   52 ++++++++++++-----
  5 files changed, 131 insertions(+), 41 deletions(-)
drivers/gpu/drm/i915/i915_reg.h +2 -0
index b522eb6..564bbd5 100644
@@ -4854,7 +4854,9 @@ enum skl_disp_power_wells {
  #define   PLANE_CTL_ALPHA_HW_PREMULTIPLY	(  3 << 4)
  #define   PLANE_CTL_ROTATE_MASK			0x3
  #define   PLANE_CTL_ROTATE_0			0x0
+#define   PLANE_CTL_ROTATE_90			0x1
  #define   PLANE_CTL_ROTATE_180			0x2
+#define   PLANE_CTL_ROTATE_270			0x3
  #define _PLANE_STRIDE_1_A			0x70188
  #define _PLANE_STRIDE_2_A			0x70288
  #define _PLANE_STRIDE_3_A			0x70388
drivers/gpu/drm/i915/intel_atomic_plane.c +24 -0
index 976b891..a27ee8c 100644
@@ -162,6 +162,30 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
  			(1 << drm_plane_index(plane));
  	}
 
+	if (state->fb && intel_rotation_90_or_270(state->rotation)) {
+		if (!(state->fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||
+			state->fb->modifier[0] == I915_FORMAT_MOD_Yf_TILED)) {
+			DRM_DEBUG_KMS("Y/Yf tiling required for 90/270!\n");
+			return -EINVAL;
+		}
+
+		/*
+		 * 90/270 is not allowed with RGB64 16:16:16:16,
+		 * RGB 16-bit 5:6:5, and Indexed 8-bit.
+		 * TBD: Add RGB64 case once its added in supported format list.
+		 */
+		switch (state->fb->pixel_format) {
+		case DRM_FORMAT_C8:
+		case DRM_FORMAT_RGB565:
+			DRM_DEBUG_KMS("Unsupported pixel format %s for 90/270!\n",
+					drm_get_format_name(state->fb->pixel_format));
+			return -EINVAL;
+
+		default:
+			break;
+		}
+	}
+
  	return intel_plane->check_plane(plane, intel_state);
  }
 
drivers/gpu/drm/i915/intel_display.c +62 -26
index f0bbc22..4de544c 100644
@@ -2311,13 +2311,6 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
  	info->pitch = fb->pitches[0];
  	info->fb_modifier = fb->modifier[0];
 
-	if (!(info->fb_modifier == I915_FORMAT_MOD_Y_TILED ||
-	      info->fb_modifier == I915_FORMAT_MOD_Yf_TILED)) {
-		DRM_DEBUG_KMS(
-			      "Y or Yf tiling is needed for 90/270 rotation!\n");
-		return -EINVAL;
-	}
-
  	return 0;
  }
 
@@ -2919,8 +2912,12 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
  	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
  	struct drm_i915_gem_object *obj;
  	int pipe = intel_crtc->pipe;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
  	unsigned long surf_addr;
+	struct drm_plane *plane;
 
  	if (!intel_crtc->primary_enabled) {
  		I915_WRITE(PLANE_CTL(pipe, 0), 0);
@@ -2981,21 +2978,51 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
  	}
 
  	plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE;
-	if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180))
+
+	plane = crtc->primary;
+	rotation = plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
  		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
  	obj = intel_fb_obj(fb);
  	stride_div = intel_fb_stride_alignment(dev, fb->modifier[0],
  					       fb->pixel_format);
-	surf_addr = intel_plane_obj_offset(to_intel_plane(crtc->primary), obj);
+	surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj);
+
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride = Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+						fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		x_offset = stride * tile_height - y - (plane->state->src_h >> 16);
+		y_offset = x;
+		plane_size = ((plane->state->src_w >> 16) - 1) << 16 |
+					((plane->state->src_h >> 16) - 1);
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		x_offset = x;
+		y_offset = y;
+		plane_size = ((plane->state->src_h >> 16) - 1) << 16 |
+			((plane->state->src_w >> 16) - 1);
+	}
+	plane_offset = y_offset << 16 | x_offset;
 
  	I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl);
  	I915_WRITE(PLANE_POS(pipe, 0), 0);
-	I915_WRITE(PLANE_OFFSET(pipe, 0), (y << 16) | x);
-	I915_WRITE(PLANE_SIZE(pipe, 0),
-		   (intel_crtc->config->pipe_src_h - 1) << 16 |
-		   (intel_crtc->config->pipe_src_w - 1));
-	I915_WRITE(PLANE_STRIDE(pipe, 0), fb->pitches[0] / stride_div);
+	I915_WRITE(PLANE_OFFSET(pipe, 0), plane_offset);
+	I915_WRITE(PLANE_SIZE(pipe, 0), plane_size);
+	I915_WRITE(PLANE_STRIDE(pipe, 0), stride);
  	I915_WRITE(PLANE_SURF(pipe, 0), surf_addr);
 
  	POSTING_READ(PLANE_SURF(pipe, 0));
@@ -12406,23 +12433,32 @@ static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
  				 intel_primary_formats, num_formats,
  				 DRM_PLANE_TYPE_PRIMARY);
 
-	if (INTEL_INFO(dev)->gen >= 4) {
-		if (!dev->mode_config.rotation_property)
-			dev->mode_config.rotation_property =
-				drm_mode_create_rotation_property(dev,
-							BIT(DRM_ROTATE_0) |
-							BIT(DRM_ROTATE_180));
-		if (dev->mode_config.rotation_property)
-			drm_object_attach_property(&primary->base.base,
-				dev->mode_config.rotation_property,
-				state->base.rotation);
-	}
+	if (INTEL_INFO(dev)->gen >= 4)
+		intel_create_rotation_property(dev, primary);
 
  	drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs);
 
  	return &primary->base;
  }
 
+void intel_create_rotation_property(struct drm_device *dev, struct intel_plane *plane)
+{
+	if (!dev->mode_config.rotation_property) {
+		unsigned long flags = BIT(DRM_ROTATE_0) |
+			BIT(DRM_ROTATE_180);
+
+		if (INTEL_INFO(dev)->gen >= 9)
+			flags |= BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270);
+
+		dev->mode_config.rotation_property =
+			drm_mode_create_rotation_property(dev, flags);
+	}
+	if (dev->mode_config.rotation_property)
+		drm_object_attach_property(&plane->base.base,
+				dev->mode_config.rotation_property,
+				plane->base.state->rotation);
+}
+
  static int
  intel_check_cursor_plane(struct drm_plane *plane,
  			 struct intel_plane_state *state)
drivers/gpu/drm/i915/intel_drv.h +6 -0
index 811a1db..d32025a 100644
@@ -995,6 +995,12 @@ intel_rotation_90_or_270(unsigned int rotation)
  	return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
  }
 
+unsigned int
+intel_tile_height(struct drm_device *dev, uint32_t bits_per_pixel,
+		  uint64_t fb_modifier);
+void intel_create_rotation_property(struct drm_device *dev,
+					struct intel_plane *plane);
+
  bool intel_wm_need_update(struct drm_plane *plane,
  			  struct drm_plane_state *state);
 
drivers/gpu/drm/i915/intel_sprite.c +37 -16
index f41e872..83adc9b 100644
@@ -190,10 +190,13 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
  	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
  	const int pipe = intel_plane->pipe;
  	const int plane = intel_plane->plane + 1;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
  	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
  	const struct drm_intel_sprite_colorkey *key = &intel_plane->ckey;
  	unsigned long surf_addr;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
 
  	plane_ctl = PLANE_CTL_ENABLE |
  		PLANE_CTL_PIPE_CSC_ENABLE;
@@ -254,8 +257,20 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
  		MISSING_CASE(fb->modifier[0]);
  	}
 
-	if (drm_plane->state->rotation == BIT(DRM_ROTATE_180))
+	rotation = drm_plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
  		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
  	intel_update_sprite_watermarks(drm_plane, crtc, src_w, src_h,
  				       pixel_size, true,
@@ -283,10 +298,26 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 
  	surf_addr = intel_plane_obj_offset(intel_plane, obj);
 
-	I915_WRITE(PLANE_OFFSET(pipe, plane), (y << 16) | x);
-	I915_WRITE(PLANE_STRIDE(pipe, plane), fb->pitches[0] / stride_div);
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride: Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+							fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		plane_size = (src_w << 16) | src_h;
+		x_offset = stride * tile_height - y - (src_h + 1);
+		y_offset = x;
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		plane_size = (src_h << 16) | src_w;
+		x_offset = x;
+		y_offset = y;
+	}
+	plane_offset = y_offset << 16 | x_offset;
+
+	I915_WRITE(PLANE_OFFSET(pipe, plane), plane_offset);
+	I915_WRITE(PLANE_STRIDE(pipe, plane), stride);
  	I915_WRITE(PLANE_POS(pipe, plane), (crtc_y << 16) | crtc_x);
-	I915_WRITE(PLANE_SIZE(pipe, plane), (crtc_h << 16) | crtc_w);
+	I915_WRITE(PLANE_SIZE(pipe, plane), plane_size);
  	I915_WRITE(PLANE_CTL(pipe, plane), plane_ctl);
  	I915_WRITE(PLANE_SURF(pipe, plane), surf_addr);
  	POSTING_READ(PLANE_SURF(pipe, plane));
@@ -1310,16 +1341,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
  		goto out;
  	}
 
-	if (!dev->mode_config.rotation_property)
-		dev->mode_config.rotation_property =
-			drm_mode_create_rotation_property(dev,
-							  BIT(DRM_ROTATE_0) |
-							  BIT(DRM_ROTATE_180));
-
-	if (dev->mode_config.rotation_property)
-		drm_object_attach_property(&intel_plane->base.base,
-					   dev->mode_config.rotation_property,
-					   state->base.rotation);
+	intel_create_rotation_property(dev, intel_plane);
 
  	drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
 
--

1.7.10.4

Quoted 14 lines
Quoted 5 lines
Quoted 4 lines

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

Quoted 8 lines

--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

#5 lore raw

Re: [PATCH 2/2] drm/i915/skl: Support for 90/270 rotation

Quoted 30 lines · Sonika
Quoted 16 lines · Ville Syrjälä
Quoted 15 lines · Daniel Vetter
Quoted 13 lines · Sonika Jindal

v2: Moving creation of property in a function, checking for 90/270 rotation simultaneously (Chris)
Letting primary plane to be positioned
v3: Adding if/else for 90/270 and rest params programming, adding check for pixel_format, some cleanup (review comments)
v4: Adding right pixel_formats, using src_* params instead of crtc_* for offset and size programming (Ville)
v5: Rebased on -nightly and Tvrtko's series for gtt remapping.
v6: Rebased on -nightly (Tvrtko's series merged)
v7: Moving pixel_format check to intel_atomic_plane_check (Matt)

Quoted 9 lines
Quoted 2 lines

Patches are missing the Testcase: tag, please add that. Also, are all the igt committed or not yet? Pulled these two in meanwhile.

Things are going somewhat broken because you didn't apply my plane state stuff. Hmm. Actually it sort of looks that it might work by luck as long as the primary plane doesn't get clipped since this is bashing the user state directly into the hardware registers and not the derived state (ie. clipped coordinates).

I was hoping your changes get merged, but not sure why they are held up.

Quoted 7 lines
Quoted 3 lines

Also I see my review comment about the 90 vs. 270 rotation mixup was ignored at least.

I never really got the to understand the need of reversing 90 and 270 :) The last discussion was not concluded, AFAIR.
Things look correct to me and work fine with the testcase also. Is there something completely different which I am unable to get?

BSpec gives me the impression the hw rotation is cw, whereas the drm one is ccw.

Quoted 320 lines

-Sonika

Quoted 317 lines
Quoted 316 lines

-Daniel

Quoted 301 lines
---
  drivers/gpu/drm/i915/i915_reg.h           |    2 +
  drivers/gpu/drm/i915/intel_atomic_plane.c |   24 ++++++++
  drivers/gpu/drm/i915/intel_display.c      |   88 ++++++++++++++++++++---------
  drivers/gpu/drm/i915/intel_drv.h          |    6 ++
  drivers/gpu/drm/i915/intel_sprite.c       |   52 ++++++++++++-----
  5 files changed, 131 insertions(+), 41 deletions(-)
drivers/gpu/drm/i915/i915_reg.h +2 -0
index b522eb6..564bbd5 100644
@@ -4854,7 +4854,9 @@ enum skl_disp_power_wells {
  #define   PLANE_CTL_ALPHA_HW_PREMULTIPLY	(  3 << 4)
  #define   PLANE_CTL_ROTATE_MASK			0x3
  #define   PLANE_CTL_ROTATE_0			0x0
+#define   PLANE_CTL_ROTATE_90			0x1
  #define   PLANE_CTL_ROTATE_180			0x2
+#define   PLANE_CTL_ROTATE_270			0x3
  #define _PLANE_STRIDE_1_A			0x70188
  #define _PLANE_STRIDE_2_A			0x70288
  #define _PLANE_STRIDE_3_A			0x70388
drivers/gpu/drm/i915/intel_atomic_plane.c +24 -0
index 976b891..a27ee8c 100644
@@ -162,6 +162,30 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
  			(1 << drm_plane_index(plane));
  	}
 
+	if (state->fb && intel_rotation_90_or_270(state->rotation)) {
+		if (!(state->fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||
+			state->fb->modifier[0] == I915_FORMAT_MOD_Yf_TILED)) {
+			DRM_DEBUG_KMS("Y/Yf tiling required for 90/270!\n");
+			return -EINVAL;
+		}
+
+		/*
+		 * 90/270 is not allowed with RGB64 16:16:16:16,
+		 * RGB 16-bit 5:6:5, and Indexed 8-bit.
+		 * TBD: Add RGB64 case once its added in supported format list.
+		 */
+		switch (state->fb->pixel_format) {
+		case DRM_FORMAT_C8:
+		case DRM_FORMAT_RGB565:
+			DRM_DEBUG_KMS("Unsupported pixel format %s for 90/270!\n",
+					drm_get_format_name(state->fb->pixel_format));
+			return -EINVAL;
+
+		default:
+			break;
+		}
+	}
+
  	return intel_plane->check_plane(plane, intel_state);
  }
 
drivers/gpu/drm/i915/intel_display.c +62 -26
index f0bbc22..4de544c 100644
@@ -2311,13 +2311,6 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
  	info->pitch = fb->pitches[0];
  	info->fb_modifier = fb->modifier[0];
 
-	if (!(info->fb_modifier == I915_FORMAT_MOD_Y_TILED ||
-	      info->fb_modifier == I915_FORMAT_MOD_Yf_TILED)) {
-		DRM_DEBUG_KMS(
-			      "Y or Yf tiling is needed for 90/270 rotation!\n");
-		return -EINVAL;
-	}
-
  	return 0;
  }
 
@@ -2919,8 +2912,12 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
  	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
  	struct drm_i915_gem_object *obj;
  	int pipe = intel_crtc->pipe;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
  	unsigned long surf_addr;
+	struct drm_plane *plane;
 
  	if (!intel_crtc->primary_enabled) {
  		I915_WRITE(PLANE_CTL(pipe, 0), 0);
@@ -2981,21 +2978,51 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
  	}
 
  	plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE;
-	if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180))
+
+	plane = crtc->primary;
+	rotation = plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
  		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
  	obj = intel_fb_obj(fb);
  	stride_div = intel_fb_stride_alignment(dev, fb->modifier[0],
  					       fb->pixel_format);
-	surf_addr = intel_plane_obj_offset(to_intel_plane(crtc->primary), obj);
+	surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj);
+
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride = Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+						fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		x_offset = stride * tile_height - y - (plane->state->src_h >> 16);
+		y_offset = x;
+		plane_size = ((plane->state->src_w >> 16) - 1) << 16 |
+					((plane->state->src_h >> 16) - 1);
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		x_offset = x;
+		y_offset = y;
+		plane_size = ((plane->state->src_h >> 16) - 1) << 16 |
+			((plane->state->src_w >> 16) - 1);
+	}
+	plane_offset = y_offset << 16 | x_offset;
 
  	I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl);
  	I915_WRITE(PLANE_POS(pipe, 0), 0);
-	I915_WRITE(PLANE_OFFSET(pipe, 0), (y << 16) | x);
-	I915_WRITE(PLANE_SIZE(pipe, 0),
-		   (intel_crtc->config->pipe_src_h - 1) << 16 |
-		   (intel_crtc->config->pipe_src_w - 1));
-	I915_WRITE(PLANE_STRIDE(pipe, 0), fb->pitches[0] / stride_div);
+	I915_WRITE(PLANE_OFFSET(pipe, 0), plane_offset);
+	I915_WRITE(PLANE_SIZE(pipe, 0), plane_size);
+	I915_WRITE(PLANE_STRIDE(pipe, 0), stride);
  	I915_WRITE(PLANE_SURF(pipe, 0), surf_addr);
 
  	POSTING_READ(PLANE_SURF(pipe, 0));
@@ -12406,23 +12433,32 @@ static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
  				 intel_primary_formats, num_formats,
  				 DRM_PLANE_TYPE_PRIMARY);
 
-	if (INTEL_INFO(dev)->gen >= 4) {
-		if (!dev->mode_config.rotation_property)
-			dev->mode_config.rotation_property =
-				drm_mode_create_rotation_property(dev,
-							BIT(DRM_ROTATE_0) |
-							BIT(DRM_ROTATE_180));
-		if (dev->mode_config.rotation_property)
-			drm_object_attach_property(&primary->base.base,
-				dev->mode_config.rotation_property,
-				state->base.rotation);
-	}
+	if (INTEL_INFO(dev)->gen >= 4)
+		intel_create_rotation_property(dev, primary);
 
  	drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs);
 
  	return &primary->base;
  }
 
+void intel_create_rotation_property(struct drm_device *dev, struct intel_plane *plane)
+{
+	if (!dev->mode_config.rotation_property) {
+		unsigned long flags = BIT(DRM_ROTATE_0) |
+			BIT(DRM_ROTATE_180);
+
+		if (INTEL_INFO(dev)->gen >= 9)
+			flags |= BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270);
+
+		dev->mode_config.rotation_property =
+			drm_mode_create_rotation_property(dev, flags);
+	}
+	if (dev->mode_config.rotation_property)
+		drm_object_attach_property(&plane->base.base,
+				dev->mode_config.rotation_property,
+				plane->base.state->rotation);
+}
+
  static int
  intel_check_cursor_plane(struct drm_plane *plane,
  			 struct intel_plane_state *state)
drivers/gpu/drm/i915/intel_drv.h +6 -0
index 811a1db..d32025a 100644
@@ -995,6 +995,12 @@ intel_rotation_90_or_270(unsigned int rotation)
  	return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
  }
 
+unsigned int
+intel_tile_height(struct drm_device *dev, uint32_t bits_per_pixel,
+		  uint64_t fb_modifier);
+void intel_create_rotation_property(struct drm_device *dev,
+					struct intel_plane *plane);
+
  bool intel_wm_need_update(struct drm_plane *plane,
  			  struct drm_plane_state *state);
 
drivers/gpu/drm/i915/intel_sprite.c +37 -16
index f41e872..83adc9b 100644
@@ -190,10 +190,13 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
  	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
  	const int pipe = intel_plane->pipe;
  	const int plane = intel_plane->plane + 1;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
  	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
  	const struct drm_intel_sprite_colorkey *key = &intel_plane->ckey;
  	unsigned long surf_addr;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
 
  	plane_ctl = PLANE_CTL_ENABLE |
  		PLANE_CTL_PIPE_CSC_ENABLE;
@@ -254,8 +257,20 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
  		MISSING_CASE(fb->modifier[0]);
  	}
 
-	if (drm_plane->state->rotation == BIT(DRM_ROTATE_180))
+	rotation = drm_plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
  		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
  	intel_update_sprite_watermarks(drm_plane, crtc, src_w, src_h,
  				       pixel_size, true,
@@ -283,10 +298,26 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 
  	surf_addr = intel_plane_obj_offset(intel_plane, obj);
 
-	I915_WRITE(PLANE_OFFSET(pipe, plane), (y << 16) | x);
-	I915_WRITE(PLANE_STRIDE(pipe, plane), fb->pitches[0] / stride_div);
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride: Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+							fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		plane_size = (src_w << 16) | src_h;
+		x_offset = stride * tile_height - y - (src_h + 1);
+		y_offset = x;
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		plane_size = (src_h << 16) | src_w;
+		x_offset = x;
+		y_offset = y;
+	}
+	plane_offset = y_offset << 16 | x_offset;
+
+	I915_WRITE(PLANE_OFFSET(pipe, plane), plane_offset);
+	I915_WRITE(PLANE_STRIDE(pipe, plane), stride);
  	I915_WRITE(PLANE_POS(pipe, plane), (crtc_y << 16) | crtc_x);
-	I915_WRITE(PLANE_SIZE(pipe, plane), (crtc_h << 16) | crtc_w);
+	I915_WRITE(PLANE_SIZE(pipe, plane), plane_size);
  	I915_WRITE(PLANE_CTL(pipe, plane), plane_ctl);
  	I915_WRITE(PLANE_SURF(pipe, plane), surf_addr);
  	POSTING_READ(PLANE_SURF(pipe, plane));
@@ -1310,16 +1341,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
  		goto out;
  	}
 
-	if (!dev->mode_config.rotation_property)
-		dev->mode_config.rotation_property =
-			drm_mode_create_rotation_property(dev,
-							  BIT(DRM_ROTATE_0) |
-							  BIT(DRM_ROTATE_180));
-
-	if (dev->mode_config.rotation_property)
-		drm_object_attach_property(&intel_plane->base.base,
-					   dev->mode_config.rotation_property,
-					   state->base.rotation);
+	intel_create_rotation_property(dev, intel_plane);
 
  	drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
 
--

1.7.10.4

Quoted 4 lines

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

Signature · 6 lines
Ville Syrjälä
Intel OTC
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#6 lore raw

Re: [PATCH 2/2] drm/i915/skl: Support for 90/270 rotation

Quoted 34 lines · Ville Syrjälä
Quoted 33 lines · Sonika
Quoted 16 lines · Ville Syrjälä
Quoted 15 lines · Daniel Vetter
Quoted 13 lines · Sonika Jindal

v2: Moving creation of property in a function, checking for 90/270 rotation simultaneously (Chris)
Letting primary plane to be positioned
v3: Adding if/else for 90/270 and rest params programming, adding check for pixel_format, some cleanup (review comments)
v4: Adding right pixel_formats, using src_* params instead of crtc_* for offset and size programming (Ville)
v5: Rebased on -nightly and Tvrtko's series for gtt remapping.
v6: Rebased on -nightly (Tvrtko's series merged)
v7: Moving pixel_format check to intel_atomic_plane_check (Matt)

Quoted 9 lines
Quoted 2 lines

Patches are missing the Testcase: tag, please add that. Also, are all the igt committed or not yet? Pulled these two in meanwhile.

Things are going somewhat broken because you didn't apply my plane state stuff. Hmm. Actually it sort of looks that it might work by luck as long as the primary plane doesn't get clipped since this is bashing the user state directly into the hardware registers and not the derived state (ie. clipped coordinates).

I was hoping your changes get merged, but not sure why they are held up.

Quoted 3 lines

Also I see my review comment about the 90 vs. 270 rotation mixup was ignored at least.

Quoted 8 lines
Quoted 4 lines

I never really got the to understand the need of reversing 90 and 270 :) The last discussion was not concluded, AFAIR.
Things look correct to me and work fine with the testcase also. Is there something completely different which I am unable to get?

BSpec gives me the impression the hw rotation is cw, whereas the drm one is ccw.

Yes, HW rotation is cw as per bspec. In drm, where do we consider it as anti-cw? I assume it is cw because all the macros work as expected, ie cw.

Quoted 306 lines
Quoted 306 lines

-Sonika

Quoted 303 lines
Quoted 303 lines

-Daniel

Quoted 301 lines
---
   drivers/gpu/drm/i915/i915_reg.h           |    2 +
   drivers/gpu/drm/i915/intel_atomic_plane.c |   24 ++++++++
   drivers/gpu/drm/i915/intel_display.c      |   88 ++++++++++++++++++++---------
   drivers/gpu/drm/i915/intel_drv.h          |    6 ++
   drivers/gpu/drm/i915/intel_sprite.c       |   52 ++++++++++++-----
   5 files changed, 131 insertions(+), 41 deletions(-)
drivers/gpu/drm/i915/i915_reg.h +2 -0
index b522eb6..564bbd5 100644
@@ -4854,7 +4854,9 @@ enum skl_disp_power_wells {
   #define   PLANE_CTL_ALPHA_HW_PREMULTIPLY	(  3 << 4)
   #define   PLANE_CTL_ROTATE_MASK			0x3
   #define   PLANE_CTL_ROTATE_0			0x0
+#define   PLANE_CTL_ROTATE_90			0x1
   #define   PLANE_CTL_ROTATE_180			0x2
+#define   PLANE_CTL_ROTATE_270			0x3
   #define _PLANE_STRIDE_1_A			0x70188
   #define _PLANE_STRIDE_2_A			0x70288
   #define _PLANE_STRIDE_3_A			0x70388
drivers/gpu/drm/i915/intel_atomic_plane.c +24 -0
index 976b891..a27ee8c 100644
@@ -162,6 +162,30 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
   			(1 << drm_plane_index(plane));
   	}
 
+	if (state->fb && intel_rotation_90_or_270(state->rotation)) {
+		if (!(state->fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||
+			state->fb->modifier[0] == I915_FORMAT_MOD_Yf_TILED)) {
+			DRM_DEBUG_KMS("Y/Yf tiling required for 90/270!\n");
+			return -EINVAL;
+		}
+
+		/*
+		 * 90/270 is not allowed with RGB64 16:16:16:16,
+		 * RGB 16-bit 5:6:5, and Indexed 8-bit.
+		 * TBD: Add RGB64 case once its added in supported format list.
+		 */
+		switch (state->fb->pixel_format) {
+		case DRM_FORMAT_C8:
+		case DRM_FORMAT_RGB565:
+			DRM_DEBUG_KMS("Unsupported pixel format %s for 90/270!\n",
+					drm_get_format_name(state->fb->pixel_format));
+			return -EINVAL;
+
+		default:
+			break;
+		}
+	}
+
   	return intel_plane->check_plane(plane, intel_state);
   }
 
drivers/gpu/drm/i915/intel_display.c +62 -26
index f0bbc22..4de544c 100644
@@ -2311,13 +2311,6 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
   	info->pitch = fb->pitches[0];
   	info->fb_modifier = fb->modifier[0];
 
-	if (!(info->fb_modifier == I915_FORMAT_MOD_Y_TILED ||
-	      info->fb_modifier == I915_FORMAT_MOD_Yf_TILED)) {
-		DRM_DEBUG_KMS(
-			      "Y or Yf tiling is needed for 90/270 rotation!\n");
-		return -EINVAL;
-	}
-
   	return 0;
   }
 
@@ -2919,8 +2912,12 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
   	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
   	struct drm_i915_gem_object *obj;
   	int pipe = intel_crtc->pipe;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
   	unsigned long surf_addr;
+	struct drm_plane *plane;
 
   	if (!intel_crtc->primary_enabled) {
   		I915_WRITE(PLANE_CTL(pipe, 0), 0);
@@ -2981,21 +2978,51 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
   	}
 
   	plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE;
-	if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180))
+
+	plane = crtc->primary;
+	rotation = plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
   		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
   	obj = intel_fb_obj(fb);
   	stride_div = intel_fb_stride_alignment(dev, fb->modifier[0],
   					       fb->pixel_format);
-	surf_addr = intel_plane_obj_offset(to_intel_plane(crtc->primary), obj);
+	surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj);
+
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride = Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+						fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		x_offset = stride * tile_height - y - (plane->state->src_h >> 16);
+		y_offset = x;
+		plane_size = ((plane->state->src_w >> 16) - 1) << 16 |
+					((plane->state->src_h >> 16) - 1);
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		x_offset = x;
+		y_offset = y;
+		plane_size = ((plane->state->src_h >> 16) - 1) << 16 |
+			((plane->state->src_w >> 16) - 1);
+	}
+	plane_offset = y_offset << 16 | x_offset;
 
   	I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl);
   	I915_WRITE(PLANE_POS(pipe, 0), 0);
-	I915_WRITE(PLANE_OFFSET(pipe, 0), (y << 16) | x);
-	I915_WRITE(PLANE_SIZE(pipe, 0),
-		   (intel_crtc->config->pipe_src_h - 1) << 16 |
-		   (intel_crtc->config->pipe_src_w - 1));
-	I915_WRITE(PLANE_STRIDE(pipe, 0), fb->pitches[0] / stride_div);
+	I915_WRITE(PLANE_OFFSET(pipe, 0), plane_offset);
+	I915_WRITE(PLANE_SIZE(pipe, 0), plane_size);
+	I915_WRITE(PLANE_STRIDE(pipe, 0), stride);
   	I915_WRITE(PLANE_SURF(pipe, 0), surf_addr);
 
   	POSTING_READ(PLANE_SURF(pipe, 0));
@@ -12406,23 +12433,32 @@ static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
   				 intel_primary_formats, num_formats,
   				 DRM_PLANE_TYPE_PRIMARY);
 
-	if (INTEL_INFO(dev)->gen >= 4) {
-		if (!dev->mode_config.rotation_property)
-			dev->mode_config.rotation_property =
-				drm_mode_create_rotation_property(dev,
-							BIT(DRM_ROTATE_0) |
-							BIT(DRM_ROTATE_180));
-		if (dev->mode_config.rotation_property)
-			drm_object_attach_property(&primary->base.base,
-				dev->mode_config.rotation_property,
-				state->base.rotation);
-	}
+	if (INTEL_INFO(dev)->gen >= 4)
+		intel_create_rotation_property(dev, primary);
 
   	drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs);
 
   	return &primary->base;
   }
 
+void intel_create_rotation_property(struct drm_device *dev, struct intel_plane *plane)
+{
+	if (!dev->mode_config.rotation_property) {
+		unsigned long flags = BIT(DRM_ROTATE_0) |
+			BIT(DRM_ROTATE_180);
+
+		if (INTEL_INFO(dev)->gen >= 9)
+			flags |= BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270);
+
+		dev->mode_config.rotation_property =
+			drm_mode_create_rotation_property(dev, flags);
+	}
+	if (dev->mode_config.rotation_property)
+		drm_object_attach_property(&plane->base.base,
+				dev->mode_config.rotation_property,
+				plane->base.state->rotation);
+}
+
   static int
   intel_check_cursor_plane(struct drm_plane *plane,
   			 struct intel_plane_state *state)
drivers/gpu/drm/i915/intel_drv.h +6 -0
index 811a1db..d32025a 100644
@@ -995,6 +995,12 @@ intel_rotation_90_or_270(unsigned int rotation)
   	return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
   }
 
+unsigned int
+intel_tile_height(struct drm_device *dev, uint32_t bits_per_pixel,
+		  uint64_t fb_modifier);
+void intel_create_rotation_property(struct drm_device *dev,
+					struct intel_plane *plane);
+
   bool intel_wm_need_update(struct drm_plane *plane,
   			  struct drm_plane_state *state);
 
drivers/gpu/drm/i915/intel_sprite.c +37 -16
index f41e872..83adc9b 100644
@@ -190,10 +190,13 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
   	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
   	const int pipe = intel_plane->pipe;
   	const int plane = intel_plane->plane + 1;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
   	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
   	const struct drm_intel_sprite_colorkey *key = &intel_plane->ckey;
   	unsigned long surf_addr;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
 
   	plane_ctl = PLANE_CTL_ENABLE |
   		PLANE_CTL_PIPE_CSC_ENABLE;
@@ -254,8 +257,20 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
   		MISSING_CASE(fb->modifier[0]);
   	}
 
-	if (drm_plane->state->rotation == BIT(DRM_ROTATE_180))
+	rotation = drm_plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
   		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
   	intel_update_sprite_watermarks(drm_plane, crtc, src_w, src_h,
   				       pixel_size, true,
@@ -283,10 +298,26 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 
   	surf_addr = intel_plane_obj_offset(intel_plane, obj);
 
-	I915_WRITE(PLANE_OFFSET(pipe, plane), (y << 16) | x);
-	I915_WRITE(PLANE_STRIDE(pipe, plane), fb->pitches[0] / stride_div);
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride: Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+							fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		plane_size = (src_w << 16) | src_h;
+		x_offset = stride * tile_height - y - (src_h + 1);
+		y_offset = x;
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		plane_size = (src_h << 16) | src_w;
+		x_offset = x;
+		y_offset = y;
+	}
+	plane_offset = y_offset << 16 | x_offset;
+
+	I915_WRITE(PLANE_OFFSET(pipe, plane), plane_offset);
+	I915_WRITE(PLANE_STRIDE(pipe, plane), stride);
   	I915_WRITE(PLANE_POS(pipe, plane), (crtc_y << 16) | crtc_x);
-	I915_WRITE(PLANE_SIZE(pipe, plane), (crtc_h << 16) | crtc_w);
+	I915_WRITE(PLANE_SIZE(pipe, plane), plane_size);
   	I915_WRITE(PLANE_CTL(pipe, plane), plane_ctl);
   	I915_WRITE(PLANE_SURF(pipe, plane), surf_addr);
   	POSTING_READ(PLANE_SURF(pipe, plane));
@@ -1310,16 +1341,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
   		goto out;
   	}
 
-	if (!dev->mode_config.rotation_property)
-		dev->mode_config.rotation_property =
-			drm_mode_create_rotation_property(dev,
-							  BIT(DRM_ROTATE_0) |
-							  BIT(DRM_ROTATE_180));
-
-	if (dev->mode_config.rotation_property)
-		drm_object_attach_property(&intel_plane->base.base,
-					   dev->mode_config.rotation_property,
-					   state->base.rotation);
+	intel_create_rotation_property(dev, intel_plane);
 
   	drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
 
--

1.7.10.4

Quoted 15 lines
Quoted 5 lines
Quoted 5 lines
Quoted 5 lines
Quoted 4 lines

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

Quoted 9 lines
Quoted 9 lines
Quoted 8 lines

--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

#7 lore raw

Re: [PATCH 2/2] drm/i915/skl: Support for 90/270 rotation

Quoted 42 lines · Sonika
Quoted 39 lines · Ville Syrjälä
Quoted 37 lines · Sonika
Quoted 16 lines · Ville Syrjälä
Quoted 15 lines · Daniel Vetter
Quoted 13 lines · Sonika Jindal

v2: Moving creation of property in a function, checking for 90/270 rotation simultaneously (Chris)
Letting primary plane to be positioned
v3: Adding if/else for 90/270 and rest params programming, adding check for pixel_format, some cleanup (review comments)
v4: Adding right pixel_formats, using src_* params instead of crtc_* for offset and size programming (Ville)
v5: Rebased on -nightly and Tvrtko's series for gtt remapping.
v6: Rebased on -nightly (Tvrtko's series merged)
v7: Moving pixel_format check to intel_atomic_plane_check (Matt)

Quoted 9 lines
Quoted 2 lines

Patches are missing the Testcase: tag, please add that. Also, are all the igt committed or not yet? Pulled these two in meanwhile.

Things are going somewhat broken because you didn't apply my plane state stuff. Hmm. Actually it sort of looks that it might work by luck as long as the primary plane doesn't get clipped since this is bashing the user state directly into the hardware registers and not the derived state (ie. clipped coordinates).

I was hoping your changes get merged, but not sure why they are held up.

Quoted 3 lines

Also I see my review comment about the 90 vs. 270 rotation mixup was ignored at least.

I never really got the to understand the need of reversing 90 and 270 :) The last discussion was not concluded, AFAIR.
Things look correct to me and work fine with the testcase also. Is there something completely different which I am unable to get?

Quoted 5 lines
Quoted 3 lines

BSpec gives me the impression the hw rotation is cw, whereas the drm one is ccw.

Yes, HW rotation is cw as per bspec. In drm, where do we consider it as anti-cw? I assume it is cw because all the macros work as expected, ie cw.

The ccw rule was inherited from XRandR. I'm not sure what macros you mean, but drm_rect_rotate() will certainly give you wrong results if you assume cw.

Quoted 322 lines
Quoted 322 lines
Quoted 321 lines

-Sonika

Quoted 317 lines
Quoted 316 lines

-Daniel

Quoted 301 lines
---
   drivers/gpu/drm/i915/i915_reg.h           |    2 +
   drivers/gpu/drm/i915/intel_atomic_plane.c |   24 ++++++++
   drivers/gpu/drm/i915/intel_display.c      |   88 ++++++++++++++++++++---------
   drivers/gpu/drm/i915/intel_drv.h          |    6 ++
   drivers/gpu/drm/i915/intel_sprite.c       |   52 ++++++++++++-----
   5 files changed, 131 insertions(+), 41 deletions(-)
drivers/gpu/drm/i915/i915_reg.h +2 -0
index b522eb6..564bbd5 100644
@@ -4854,7 +4854,9 @@ enum skl_disp_power_wells {
   #define   PLANE_CTL_ALPHA_HW_PREMULTIPLY	(  3 << 4)
   #define   PLANE_CTL_ROTATE_MASK			0x3
   #define   PLANE_CTL_ROTATE_0			0x0
+#define   PLANE_CTL_ROTATE_90			0x1
   #define   PLANE_CTL_ROTATE_180			0x2
+#define   PLANE_CTL_ROTATE_270			0x3
   #define _PLANE_STRIDE_1_A			0x70188
   #define _PLANE_STRIDE_2_A			0x70288
   #define _PLANE_STRIDE_3_A			0x70388
drivers/gpu/drm/i915/intel_atomic_plane.c +24 -0
index 976b891..a27ee8c 100644
@@ -162,6 +162,30 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
   			(1 << drm_plane_index(plane));
   	}
 
+	if (state->fb && intel_rotation_90_or_270(state->rotation)) {
+		if (!(state->fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||
+			state->fb->modifier[0] == I915_FORMAT_MOD_Yf_TILED)) {
+			DRM_DEBUG_KMS("Y/Yf tiling required for 90/270!\n");
+			return -EINVAL;
+		}
+
+		/*
+		 * 90/270 is not allowed with RGB64 16:16:16:16,
+		 * RGB 16-bit 5:6:5, and Indexed 8-bit.
+		 * TBD: Add RGB64 case once its added in supported format list.
+		 */
+		switch (state->fb->pixel_format) {
+		case DRM_FORMAT_C8:
+		case DRM_FORMAT_RGB565:
+			DRM_DEBUG_KMS("Unsupported pixel format %s for 90/270!\n",
+					drm_get_format_name(state->fb->pixel_format));
+			return -EINVAL;
+
+		default:
+			break;
+		}
+	}
+
   	return intel_plane->check_plane(plane, intel_state);
   }
 
drivers/gpu/drm/i915/intel_display.c +62 -26
index f0bbc22..4de544c 100644
@@ -2311,13 +2311,6 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
   	info->pitch = fb->pitches[0];
   	info->fb_modifier = fb->modifier[0];
 
-	if (!(info->fb_modifier == I915_FORMAT_MOD_Y_TILED ||
-	      info->fb_modifier == I915_FORMAT_MOD_Yf_TILED)) {
-		DRM_DEBUG_KMS(
-			      "Y or Yf tiling is needed for 90/270 rotation!\n");
-		return -EINVAL;
-	}
-
   	return 0;
   }
 
@@ -2919,8 +2912,12 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
   	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
   	struct drm_i915_gem_object *obj;
   	int pipe = intel_crtc->pipe;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
   	unsigned long surf_addr;
+	struct drm_plane *plane;
 
   	if (!intel_crtc->primary_enabled) {
   		I915_WRITE(PLANE_CTL(pipe, 0), 0);
@@ -2981,21 +2978,51 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
   	}
 
   	plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE;
-	if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180))
+
+	plane = crtc->primary;
+	rotation = plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
   		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
   	obj = intel_fb_obj(fb);
   	stride_div = intel_fb_stride_alignment(dev, fb->modifier[0],
   					       fb->pixel_format);
-	surf_addr = intel_plane_obj_offset(to_intel_plane(crtc->primary), obj);
+	surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj);
+
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride = Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+						fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		x_offset = stride * tile_height - y - (plane->state->src_h >> 16);
+		y_offset = x;
+		plane_size = ((plane->state->src_w >> 16) - 1) << 16 |
+					((plane->state->src_h >> 16) - 1);
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		x_offset = x;
+		y_offset = y;
+		plane_size = ((plane->state->src_h >> 16) - 1) << 16 |
+			((plane->state->src_w >> 16) - 1);
+	}
+	plane_offset = y_offset << 16 | x_offset;
 
   	I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl);
   	I915_WRITE(PLANE_POS(pipe, 0), 0);
-	I915_WRITE(PLANE_OFFSET(pipe, 0), (y << 16) | x);
-	I915_WRITE(PLANE_SIZE(pipe, 0),
-		   (intel_crtc->config->pipe_src_h - 1) << 16 |
-		   (intel_crtc->config->pipe_src_w - 1));
-	I915_WRITE(PLANE_STRIDE(pipe, 0), fb->pitches[0] / stride_div);
+	I915_WRITE(PLANE_OFFSET(pipe, 0), plane_offset);
+	I915_WRITE(PLANE_SIZE(pipe, 0), plane_size);
+	I915_WRITE(PLANE_STRIDE(pipe, 0), stride);
   	I915_WRITE(PLANE_SURF(pipe, 0), surf_addr);
 
   	POSTING_READ(PLANE_SURF(pipe, 0));
@@ -12406,23 +12433,32 @@ static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
   				 intel_primary_formats, num_formats,
   				 DRM_PLANE_TYPE_PRIMARY);
 
-	if (INTEL_INFO(dev)->gen >= 4) {
-		if (!dev->mode_config.rotation_property)
-			dev->mode_config.rotation_property =
-				drm_mode_create_rotation_property(dev,
-							BIT(DRM_ROTATE_0) |
-							BIT(DRM_ROTATE_180));
-		if (dev->mode_config.rotation_property)
-			drm_object_attach_property(&primary->base.base,
-				dev->mode_config.rotation_property,
-				state->base.rotation);
-	}
+	if (INTEL_INFO(dev)->gen >= 4)
+		intel_create_rotation_property(dev, primary);
 
   	drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs);
 
   	return &primary->base;
   }
 
+void intel_create_rotation_property(struct drm_device *dev, struct intel_plane *plane)
+{
+	if (!dev->mode_config.rotation_property) {
+		unsigned long flags = BIT(DRM_ROTATE_0) |
+			BIT(DRM_ROTATE_180);
+
+		if (INTEL_INFO(dev)->gen >= 9)
+			flags |= BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270);
+
+		dev->mode_config.rotation_property =
+			drm_mode_create_rotation_property(dev, flags);
+	}
+	if (dev->mode_config.rotation_property)
+		drm_object_attach_property(&plane->base.base,
+				dev->mode_config.rotation_property,
+				plane->base.state->rotation);
+}
+
   static int
   intel_check_cursor_plane(struct drm_plane *plane,
   			 struct intel_plane_state *state)
drivers/gpu/drm/i915/intel_drv.h +6 -0
index 811a1db..d32025a 100644
@@ -995,6 +995,12 @@ intel_rotation_90_or_270(unsigned int rotation)
   	return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
   }
 
+unsigned int
+intel_tile_height(struct drm_device *dev, uint32_t bits_per_pixel,
+		  uint64_t fb_modifier);
+void intel_create_rotation_property(struct drm_device *dev,
+					struct intel_plane *plane);
+
   bool intel_wm_need_update(struct drm_plane *plane,
   			  struct drm_plane_state *state);
 
drivers/gpu/drm/i915/intel_sprite.c +37 -16
index f41e872..83adc9b 100644
@@ -190,10 +190,13 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
   	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
   	const int pipe = intel_plane->pipe;
   	const int plane = intel_plane->plane + 1;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
   	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
   	const struct drm_intel_sprite_colorkey *key = &intel_plane->ckey;
   	unsigned long surf_addr;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
 
   	plane_ctl = PLANE_CTL_ENABLE |
   		PLANE_CTL_PIPE_CSC_ENABLE;
@@ -254,8 +257,20 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
   		MISSING_CASE(fb->modifier[0]);
   	}
 
-	if (drm_plane->state->rotation == BIT(DRM_ROTATE_180))
+	rotation = drm_plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
   		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
   	intel_update_sprite_watermarks(drm_plane, crtc, src_w, src_h,
   				       pixel_size, true,
@@ -283,10 +298,26 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 
   	surf_addr = intel_plane_obj_offset(intel_plane, obj);
 
-	I915_WRITE(PLANE_OFFSET(pipe, plane), (y << 16) | x);
-	I915_WRITE(PLANE_STRIDE(pipe, plane), fb->pitches[0] / stride_div);
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride: Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+							fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		plane_size = (src_w << 16) | src_h;
+		x_offset = stride * tile_height - y - (src_h + 1);
+		y_offset = x;
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		plane_size = (src_h << 16) | src_w;
+		x_offset = x;
+		y_offset = y;
+	}
+	plane_offset = y_offset << 16 | x_offset;
+
+	I915_WRITE(PLANE_OFFSET(pipe, plane), plane_offset);
+	I915_WRITE(PLANE_STRIDE(pipe, plane), stride);
   	I915_WRITE(PLANE_POS(pipe, plane), (crtc_y << 16) | crtc_x);
-	I915_WRITE(PLANE_SIZE(pipe, plane), (crtc_h << 16) | crtc_w);
+	I915_WRITE(PLANE_SIZE(pipe, plane), plane_size);
   	I915_WRITE(PLANE_CTL(pipe, plane), plane_ctl);
   	I915_WRITE(PLANE_SURF(pipe, plane), surf_addr);
   	POSTING_READ(PLANE_SURF(pipe, plane));
@@ -1310,16 +1341,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
   		goto out;
   	}
 
-	if (!dev->mode_config.rotation_property)
-		dev->mode_config.rotation_property =
-			drm_mode_create_rotation_property(dev,
-							  BIT(DRM_ROTATE_0) |
-							  BIT(DRM_ROTATE_180));
-
-	if (dev->mode_config.rotation_property)
-		drm_object_attach_property(&intel_plane->base.base,
-					   dev->mode_config.rotation_property,
-					   state->base.rotation);
+	intel_create_rotation_property(dev, intel_plane);
 
   	drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
 
--

1.7.10.4

Quoted 4 lines

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

Signature · 6 lines
Ville Syrjälä
Intel OTC
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#8 lore raw

Re: [PATCH 2/2] drm/i915/skl: Support for 90/270 rotation

Quoted 46 lines · Ville Syrjälä
Quoted 45 lines · Sonika
Quoted 42 lines · Ville Syrjälä
Quoted 30 lines · Sonika
Quoted 16 lines · Ville Syrjälä
Quoted 15 lines · Daniel Vetter
Quoted 13 lines · Sonika Jindal

v2: Moving creation of property in a function, checking for 90/270 rotation simultaneously (Chris)
Letting primary plane to be positioned
v3: Adding if/else for 90/270 and rest params programming, adding check for pixel_format, some cleanup (review comments)
v4: Adding right pixel_formats, using src_* params instead of crtc_* for offset and size programming (Ville)
v5: Rebased on -nightly and Tvrtko's series for gtt remapping.
v6: Rebased on -nightly (Tvrtko's series merged)
v7: Moving pixel_format check to intel_atomic_plane_check (Matt)

Quoted 9 lines
Quoted 2 lines

Patches are missing the Testcase: tag, please add that. Also, are all the igt committed or not yet? Pulled these two in meanwhile.

Things are going somewhat broken because you didn't apply my plane state stuff. Hmm. Actually it sort of looks that it might work by luck as long as the primary plane doesn't get clipped since this is bashing the user state directly into the hardware registers and not the derived state (ie. clipped coordinates).

I was hoping your changes get merged, but not sure why they are held up.

Quoted 7 lines
Quoted 3 lines

Also I see my review comment about the 90 vs. 270 rotation mixup was ignored at least.

I never really got the to understand the need of reversing 90 and 270 :) The last discussion was not concluded, AFAIR.
Things look correct to me and work fine with the testcase also. Is there something completely different which I am unable to get?

BSpec gives me the impression the hw rotation is cw, whereas the drm one is ccw.

Quoted 6 lines
Quoted 2 lines

Yes, HW rotation is cw as per bspec. In drm, where do we consider it as anti-cw? I assume it is cw because all the macros work as expected, ie cw.

The ccw rule was inherited from XRandR. I'm not sure what macros you mean, but drm_rect_rotate() will certainly give you wrong results if you assume cw.

It seems like this information needs to be added to the property section of the DRM DocBook; continuing to follow XRandR probably makes sense if that's what's agreed on, but there's no indication of that design philosophy in the actual DRM documentation today, so we're in danger of having different driver authors use conflicting interpretations.

90/270 rotation is already supported by existing drivers (omap for several years now and atmel-hlcdc just recently). I think it's too late to try to redefine the meaning of rotation property values that are already in active use, so we probably need to check whether omap is using a cw or ccw scheme and follow (and document!) that.

Matt

Quoted 331 lines
Quoted 323 lines
Quoted 323 lines
Quoted 322 lines

-Sonika

Quoted 317 lines
Quoted 316 lines

-Daniel

Quoted 301 lines
---
   drivers/gpu/drm/i915/i915_reg.h           |    2 +
   drivers/gpu/drm/i915/intel_atomic_plane.c |   24 ++++++++
   drivers/gpu/drm/i915/intel_display.c      |   88 ++++++++++++++++++++---------
   drivers/gpu/drm/i915/intel_drv.h          |    6 ++
   drivers/gpu/drm/i915/intel_sprite.c       |   52 ++++++++++++-----
   5 files changed, 131 insertions(+), 41 deletions(-)
drivers/gpu/drm/i915/i915_reg.h +2 -0
index b522eb6..564bbd5 100644
@@ -4854,7 +4854,9 @@ enum skl_disp_power_wells {
   #define   PLANE_CTL_ALPHA_HW_PREMULTIPLY	(  3 << 4)
   #define   PLANE_CTL_ROTATE_MASK			0x3
   #define   PLANE_CTL_ROTATE_0			0x0
+#define   PLANE_CTL_ROTATE_90			0x1
   #define   PLANE_CTL_ROTATE_180			0x2
+#define   PLANE_CTL_ROTATE_270			0x3
   #define _PLANE_STRIDE_1_A			0x70188
   #define _PLANE_STRIDE_2_A			0x70288
   #define _PLANE_STRIDE_3_A			0x70388
drivers/gpu/drm/i915/intel_atomic_plane.c +24 -0
index 976b891..a27ee8c 100644
@@ -162,6 +162,30 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
   			(1 << drm_plane_index(plane));
   	}
 
+	if (state->fb && intel_rotation_90_or_270(state->rotation)) {
+		if (!(state->fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||
+			state->fb->modifier[0] == I915_FORMAT_MOD_Yf_TILED)) {
+			DRM_DEBUG_KMS("Y/Yf tiling required for 90/270!\n");
+			return -EINVAL;
+		}
+
+		/*
+		 * 90/270 is not allowed with RGB64 16:16:16:16,
+		 * RGB 16-bit 5:6:5, and Indexed 8-bit.
+		 * TBD: Add RGB64 case once its added in supported format list.
+		 */
+		switch (state->fb->pixel_format) {
+		case DRM_FORMAT_C8:
+		case DRM_FORMAT_RGB565:
+			DRM_DEBUG_KMS("Unsupported pixel format %s for 90/270!\n",
+					drm_get_format_name(state->fb->pixel_format));
+			return -EINVAL;
+
+		default:
+			break;
+		}
+	}
+
   	return intel_plane->check_plane(plane, intel_state);
   }
 
drivers/gpu/drm/i915/intel_display.c +62 -26
index f0bbc22..4de544c 100644
@@ -2311,13 +2311,6 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
   	info->pitch = fb->pitches[0];
   	info->fb_modifier = fb->modifier[0];
 
-	if (!(info->fb_modifier == I915_FORMAT_MOD_Y_TILED ||
-	      info->fb_modifier == I915_FORMAT_MOD_Yf_TILED)) {
-		DRM_DEBUG_KMS(
-			      "Y or Yf tiling is needed for 90/270 rotation!\n");
-		return -EINVAL;
-	}
-
   	return 0;
   }
 
@@ -2919,8 +2912,12 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
   	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
   	struct drm_i915_gem_object *obj;
   	int pipe = intel_crtc->pipe;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
   	unsigned long surf_addr;
+	struct drm_plane *plane;
 
   	if (!intel_crtc->primary_enabled) {
   		I915_WRITE(PLANE_CTL(pipe, 0), 0);
@@ -2981,21 +2978,51 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
   	}
 
   	plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE;
-	if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180))
+
+	plane = crtc->primary;
+	rotation = plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
   		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
   	obj = intel_fb_obj(fb);
   	stride_div = intel_fb_stride_alignment(dev, fb->modifier[0],
   					       fb->pixel_format);
-	surf_addr = intel_plane_obj_offset(to_intel_plane(crtc->primary), obj);
+	surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj);
+
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride = Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+						fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		x_offset = stride * tile_height - y - (plane->state->src_h >> 16);
+		y_offset = x;
+		plane_size = ((plane->state->src_w >> 16) - 1) << 16 |
+					((plane->state->src_h >> 16) - 1);
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		x_offset = x;
+		y_offset = y;
+		plane_size = ((plane->state->src_h >> 16) - 1) << 16 |
+			((plane->state->src_w >> 16) - 1);
+	}
+	plane_offset = y_offset << 16 | x_offset;
 
   	I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl);
   	I915_WRITE(PLANE_POS(pipe, 0), 0);
-	I915_WRITE(PLANE_OFFSET(pipe, 0), (y << 16) | x);
-	I915_WRITE(PLANE_SIZE(pipe, 0),
-		   (intel_crtc->config->pipe_src_h - 1) << 16 |
-		   (intel_crtc->config->pipe_src_w - 1));
-	I915_WRITE(PLANE_STRIDE(pipe, 0), fb->pitches[0] / stride_div);
+	I915_WRITE(PLANE_OFFSET(pipe, 0), plane_offset);
+	I915_WRITE(PLANE_SIZE(pipe, 0), plane_size);
+	I915_WRITE(PLANE_STRIDE(pipe, 0), stride);
   	I915_WRITE(PLANE_SURF(pipe, 0), surf_addr);
 
   	POSTING_READ(PLANE_SURF(pipe, 0));
@@ -12406,23 +12433,32 @@ static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
   				 intel_primary_formats, num_formats,
   				 DRM_PLANE_TYPE_PRIMARY);
 
-	if (INTEL_INFO(dev)->gen >= 4) {
-		if (!dev->mode_config.rotation_property)
-			dev->mode_config.rotation_property =
-				drm_mode_create_rotation_property(dev,
-							BIT(DRM_ROTATE_0) |
-							BIT(DRM_ROTATE_180));
-		if (dev->mode_config.rotation_property)
-			drm_object_attach_property(&primary->base.base,
-				dev->mode_config.rotation_property,
-				state->base.rotation);
-	}
+	if (INTEL_INFO(dev)->gen >= 4)
+		intel_create_rotation_property(dev, primary);
 
   	drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs);
 
   	return &primary->base;
   }
 
+void intel_create_rotation_property(struct drm_device *dev, struct intel_plane *plane)
+{
+	if (!dev->mode_config.rotation_property) {
+		unsigned long flags = BIT(DRM_ROTATE_0) |
+			BIT(DRM_ROTATE_180);
+
+		if (INTEL_INFO(dev)->gen >= 9)
+			flags |= BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270);
+
+		dev->mode_config.rotation_property =
+			drm_mode_create_rotation_property(dev, flags);
+	}
+	if (dev->mode_config.rotation_property)
+		drm_object_attach_property(&plane->base.base,
+				dev->mode_config.rotation_property,
+				plane->base.state->rotation);
+}
+
   static int
   intel_check_cursor_plane(struct drm_plane *plane,
   			 struct intel_plane_state *state)
drivers/gpu/drm/i915/intel_drv.h +6 -0
index 811a1db..d32025a 100644
@@ -995,6 +995,12 @@ intel_rotation_90_or_270(unsigned int rotation)
   	return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
   }
 
+unsigned int
+intel_tile_height(struct drm_device *dev, uint32_t bits_per_pixel,
+		  uint64_t fb_modifier);
+void intel_create_rotation_property(struct drm_device *dev,
+					struct intel_plane *plane);
+
   bool intel_wm_need_update(struct drm_plane *plane,
   			  struct drm_plane_state *state);
 
drivers/gpu/drm/i915/intel_sprite.c +37 -16
index f41e872..83adc9b 100644
@@ -190,10 +190,13 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
   	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
   	const int pipe = intel_plane->pipe;
   	const int plane = intel_plane->plane + 1;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
   	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
   	const struct drm_intel_sprite_colorkey *key = &intel_plane->ckey;
   	unsigned long surf_addr;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
 
   	plane_ctl = PLANE_CTL_ENABLE |
   		PLANE_CTL_PIPE_CSC_ENABLE;
@@ -254,8 +257,20 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
   		MISSING_CASE(fb->modifier[0]);
   	}
 
-	if (drm_plane->state->rotation == BIT(DRM_ROTATE_180))
+	rotation = drm_plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
   		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
   	intel_update_sprite_watermarks(drm_plane, crtc, src_w, src_h,
   				       pixel_size, true,
@@ -283,10 +298,26 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 
   	surf_addr = intel_plane_obj_offset(intel_plane, obj);
 
-	I915_WRITE(PLANE_OFFSET(pipe, plane), (y << 16) | x);
-	I915_WRITE(PLANE_STRIDE(pipe, plane), fb->pitches[0] / stride_div);
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride: Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+							fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		plane_size = (src_w << 16) | src_h;
+		x_offset = stride * tile_height - y - (src_h + 1);
+		y_offset = x;
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		plane_size = (src_h << 16) | src_w;
+		x_offset = x;
+		y_offset = y;
+	}
+	plane_offset = y_offset << 16 | x_offset;
+
+	I915_WRITE(PLANE_OFFSET(pipe, plane), plane_offset);
+	I915_WRITE(PLANE_STRIDE(pipe, plane), stride);
   	I915_WRITE(PLANE_POS(pipe, plane), (crtc_y << 16) | crtc_x);
-	I915_WRITE(PLANE_SIZE(pipe, plane), (crtc_h << 16) | crtc_w);
+	I915_WRITE(PLANE_SIZE(pipe, plane), plane_size);
   	I915_WRITE(PLANE_CTL(pipe, plane), plane_ctl);
   	I915_WRITE(PLANE_SURF(pipe, plane), surf_addr);
   	POSTING_READ(PLANE_SURF(pipe, plane));
@@ -1310,16 +1341,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
   		goto out;
   	}
 
-	if (!dev->mode_config.rotation_property)
-		dev->mode_config.rotation_property =
-			drm_mode_create_rotation_property(dev,
-							  BIT(DRM_ROTATE_0) |
-							  BIT(DRM_ROTATE_180));
-
-	if (dev->mode_config.rotation_property)
-		drm_object_attach_property(&intel_plane->base.base,
-					   dev->mode_config.rotation_property,
-					   state->base.rotation);
+	intel_create_rotation_property(dev, intel_plane);
 
   	drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
 
--

1.7.10.4

Quoted 4 lines

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

Signature · 6 lines
Ville Syrjälä
Intel OTC
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Signature · 9 lines
Matt Roper
Graphics Software Engineer
IoTG Platform Enabling & Development
Intel Corporation
(916) 356-2795
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#9 lore raw

Re: [PATCH 2/2] drm/i915/skl: Support for 90/270 rotation

Quoted 54 lines · Matt Roper
Quoted 46 lines · Ville Syrjälä
Quoted 45 lines · Sonika
Quoted 42 lines · Ville Syrjälä
Quoted 30 lines · Sonika
Quoted 16 lines · Ville Syrjälä
Quoted 15 lines · Daniel Vetter
Quoted 13 lines · Sonika Jindal

v2: Moving creation of property in a function, checking for 90/270 rotation simultaneously (Chris)
Letting primary plane to be positioned
v3: Adding if/else for 90/270 and rest params programming, adding check for pixel_format, some cleanup (review comments)
v4: Adding right pixel_formats, using src_* params instead of crtc_* for offset and size programming (Ville)
v5: Rebased on -nightly and Tvrtko's series for gtt remapping.
v6: Rebased on -nightly (Tvrtko's series merged)
v7: Moving pixel_format check to intel_atomic_plane_check (Matt)

Quoted 9 lines
Quoted 2 lines

Patches are missing the Testcase: tag, please add that. Also, are all the igt committed or not yet? Pulled these two in meanwhile.

Things are going somewhat broken because you didn't apply my plane state stuff. Hmm. Actually it sort of looks that it might work by luck as long as the primary plane doesn't get clipped since this is bashing the user state directly into the hardware registers and not the derived state (ie. clipped coordinates).

I was hoping your changes get merged, but not sure why they are held up.

Quoted 7 lines
Quoted 3 lines

Also I see my review comment about the 90 vs. 270 rotation mixup was ignored at least.

I never really got the to understand the need of reversing 90 and 270 :) The last discussion was not concluded, AFAIR.
Things look correct to me and work fine with the testcase also. Is there something completely different which I am unable to get?

BSpec gives me the impression the hw rotation is cw, whereas the drm one is ccw.

Quoted 6 lines
Quoted 2 lines

Yes, HW rotation is cw as per bspec. In drm, where do we consider it as anti-cw? I assume it is cw because all the macros work as expected, ie cw.

The ccw rule was inherited from XRandR. I'm not sure what macros you mean, but drm_rect_rotate() will certainly give you wrong results if you assume cw.

Quoted 6 lines

It seems like this information needs to be added to the property section of the DRM DocBook; continuing to follow XRandR probably makes sense if that's what's agreed on, but there's no indication of that design philosophy in the actual DRM documentation today, so we're in danger of having different driver authors use conflicting interpretations.

Ok, I will create a DocBook patch with description for 90/270 rotation (Anyways 90/270 rotation is not added in the rotation property in documentation). Will there be any other place for this or i915's rotation property?

Also, I will send a patch to flip 90/270 in i915. I am just worried, that it will look confusing to check for DRM_ROTATE_90 and use PLANE_CTL_ROTATE_270 for programming. I will add a comment though. Sounds good?

-Sonika

Quoted 7 lines

90/270 rotation is already supported by existing drivers (omap for several years now and atmel-hlcdc just recently). I think it's too late to try to redefine the meaning of rotation property values that are already in active use, so we probably need to check whether omap is using a cw or ccw scheme and follow (and document!) that.

Quoted 334 lines

Matt

Quoted 331 lines
Quoted 308 lines
Quoted 308 lines
Quoted 308 lines

-Sonika

Quoted 303 lines
Quoted 303 lines

-Daniel

Quoted 301 lines
---
    drivers/gpu/drm/i915/i915_reg.h           |    2 +
    drivers/gpu/drm/i915/intel_atomic_plane.c |   24 ++++++++
    drivers/gpu/drm/i915/intel_display.c      |   88 ++++++++++++++++++++---------
    drivers/gpu/drm/i915/intel_drv.h          |    6 ++
    drivers/gpu/drm/i915/intel_sprite.c       |   52 ++++++++++++-----
    5 files changed, 131 insertions(+), 41 deletions(-)
drivers/gpu/drm/i915/i915_reg.h +2 -0
index b522eb6..564bbd5 100644
@@ -4854,7 +4854,9 @@ enum skl_disp_power_wells {
    #define   PLANE_CTL_ALPHA_HW_PREMULTIPLY	(  3 << 4)
    #define   PLANE_CTL_ROTATE_MASK			0x3
    #define   PLANE_CTL_ROTATE_0			0x0
+#define   PLANE_CTL_ROTATE_90			0x1
    #define   PLANE_CTL_ROTATE_180			0x2
+#define   PLANE_CTL_ROTATE_270			0x3
    #define _PLANE_STRIDE_1_A			0x70188
    #define _PLANE_STRIDE_2_A			0x70288
    #define _PLANE_STRIDE_3_A			0x70388
drivers/gpu/drm/i915/intel_atomic_plane.c +24 -0
index 976b891..a27ee8c 100644
@@ -162,6 +162,30 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
    			(1 << drm_plane_index(plane));
    	}
 
+	if (state->fb && intel_rotation_90_or_270(state->rotation)) {
+		if (!(state->fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||
+			state->fb->modifier[0] == I915_FORMAT_MOD_Yf_TILED)) {
+			DRM_DEBUG_KMS("Y/Yf tiling required for 90/270!\n");
+			return -EINVAL;
+		}
+
+		/*
+		 * 90/270 is not allowed with RGB64 16:16:16:16,
+		 * RGB 16-bit 5:6:5, and Indexed 8-bit.
+		 * TBD: Add RGB64 case once its added in supported format list.
+		 */
+		switch (state->fb->pixel_format) {
+		case DRM_FORMAT_C8:
+		case DRM_FORMAT_RGB565:
+			DRM_DEBUG_KMS("Unsupported pixel format %s for 90/270!\n",
+					drm_get_format_name(state->fb->pixel_format));
+			return -EINVAL;
+
+		default:
+			break;
+		}
+	}
+
    	return intel_plane->check_plane(plane, intel_state);
    }
 
drivers/gpu/drm/i915/intel_display.c +62 -26
index f0bbc22..4de544c 100644
@@ -2311,13 +2311,6 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
    	info->pitch = fb->pitches[0];
    	info->fb_modifier = fb->modifier[0];
 
-	if (!(info->fb_modifier == I915_FORMAT_MOD_Y_TILED ||
-	      info->fb_modifier == I915_FORMAT_MOD_Yf_TILED)) {
-		DRM_DEBUG_KMS(
-			      "Y or Yf tiling is needed for 90/270 rotation!\n");
-		return -EINVAL;
-	}
-
    	return 0;
    }
 
@@ -2919,8 +2912,12 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
    	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
    	struct drm_i915_gem_object *obj;
    	int pipe = intel_crtc->pipe;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
    	unsigned long surf_addr;
+	struct drm_plane *plane;
 
    	if (!intel_crtc->primary_enabled) {
    		I915_WRITE(PLANE_CTL(pipe, 0), 0);
@@ -2981,21 +2978,51 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
    	}
 
    	plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE;
-	if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180))
+
+	plane = crtc->primary;
+	rotation = plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
    		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
    	obj = intel_fb_obj(fb);
    	stride_div = intel_fb_stride_alignment(dev, fb->modifier[0],
    					       fb->pixel_format);
-	surf_addr = intel_plane_obj_offset(to_intel_plane(crtc->primary), obj);
+	surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj);
+
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride = Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+						fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		x_offset = stride * tile_height - y - (plane->state->src_h >> 16);
+		y_offset = x;
+		plane_size = ((plane->state->src_w >> 16) - 1) << 16 |
+					((plane->state->src_h >> 16) - 1);
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		x_offset = x;
+		y_offset = y;
+		plane_size = ((plane->state->src_h >> 16) - 1) << 16 |
+			((plane->state->src_w >> 16) - 1);
+	}
+	plane_offset = y_offset << 16 | x_offset;
 
    	I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl);
    	I915_WRITE(PLANE_POS(pipe, 0), 0);
-	I915_WRITE(PLANE_OFFSET(pipe, 0), (y << 16) | x);
-	I915_WRITE(PLANE_SIZE(pipe, 0),
-		   (intel_crtc->config->pipe_src_h - 1) << 16 |
-		   (intel_crtc->config->pipe_src_w - 1));
-	I915_WRITE(PLANE_STRIDE(pipe, 0), fb->pitches[0] / stride_div);
+	I915_WRITE(PLANE_OFFSET(pipe, 0), plane_offset);
+	I915_WRITE(PLANE_SIZE(pipe, 0), plane_size);
+	I915_WRITE(PLANE_STRIDE(pipe, 0), stride);
    	I915_WRITE(PLANE_SURF(pipe, 0), surf_addr);
 
    	POSTING_READ(PLANE_SURF(pipe, 0));
@@ -12406,23 +12433,32 @@ static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
    				 intel_primary_formats, num_formats,
    				 DRM_PLANE_TYPE_PRIMARY);
 
-	if (INTEL_INFO(dev)->gen >= 4) {
-		if (!dev->mode_config.rotation_property)
-			dev->mode_config.rotation_property =
-				drm_mode_create_rotation_property(dev,
-							BIT(DRM_ROTATE_0) |
-							BIT(DRM_ROTATE_180));
-		if (dev->mode_config.rotation_property)
-			drm_object_attach_property(&primary->base.base,
-				dev->mode_config.rotation_property,
-				state->base.rotation);
-	}
+	if (INTEL_INFO(dev)->gen >= 4)
+		intel_create_rotation_property(dev, primary);
 
    	drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs);
 
    	return &primary->base;
    }
 
+void intel_create_rotation_property(struct drm_device *dev, struct intel_plane *plane)
+{
+	if (!dev->mode_config.rotation_property) {
+		unsigned long flags = BIT(DRM_ROTATE_0) |
+			BIT(DRM_ROTATE_180);
+
+		if (INTEL_INFO(dev)->gen >= 9)
+			flags |= BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270);
+
+		dev->mode_config.rotation_property =
+			drm_mode_create_rotation_property(dev, flags);
+	}
+	if (dev->mode_config.rotation_property)
+		drm_object_attach_property(&plane->base.base,
+				dev->mode_config.rotation_property,
+				plane->base.state->rotation);
+}
+
    static int
    intel_check_cursor_plane(struct drm_plane *plane,
    			 struct intel_plane_state *state)
drivers/gpu/drm/i915/intel_drv.h +6 -0
index 811a1db..d32025a 100644
@@ -995,6 +995,12 @@ intel_rotation_90_or_270(unsigned int rotation)
    	return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
    }
 
+unsigned int
+intel_tile_height(struct drm_device *dev, uint32_t bits_per_pixel,
+		  uint64_t fb_modifier);
+void intel_create_rotation_property(struct drm_device *dev,
+					struct intel_plane *plane);
+
    bool intel_wm_need_update(struct drm_plane *plane,
    			  struct drm_plane_state *state);
 
drivers/gpu/drm/i915/intel_sprite.c +37 -16
index f41e872..83adc9b 100644
@@ -190,10 +190,13 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
    	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
    	const int pipe = intel_plane->pipe;
    	const int plane = intel_plane->plane + 1;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
    	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
    	const struct drm_intel_sprite_colorkey *key = &intel_plane->ckey;
    	unsigned long surf_addr;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
 
    	plane_ctl = PLANE_CTL_ENABLE |
    		PLANE_CTL_PIPE_CSC_ENABLE;
@@ -254,8 +257,20 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
    		MISSING_CASE(fb->modifier[0]);
    	}
 
-	if (drm_plane->state->rotation == BIT(DRM_ROTATE_180))
+	rotation = drm_plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
    		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
    	intel_update_sprite_watermarks(drm_plane, crtc, src_w, src_h,
    				       pixel_size, true,
@@ -283,10 +298,26 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 
    	surf_addr = intel_plane_obj_offset(intel_plane, obj);
 
-	I915_WRITE(PLANE_OFFSET(pipe, plane), (y << 16) | x);
-	I915_WRITE(PLANE_STRIDE(pipe, plane), fb->pitches[0] / stride_div);
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride: Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+							fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		plane_size = (src_w << 16) | src_h;
+		x_offset = stride * tile_height - y - (src_h + 1);
+		y_offset = x;
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		plane_size = (src_h << 16) | src_w;
+		x_offset = x;
+		y_offset = y;
+	}
+	plane_offset = y_offset << 16 | x_offset;
+
+	I915_WRITE(PLANE_OFFSET(pipe, plane), plane_offset);
+	I915_WRITE(PLANE_STRIDE(pipe, plane), stride);
    	I915_WRITE(PLANE_POS(pipe, plane), (crtc_y << 16) | crtc_x);
-	I915_WRITE(PLANE_SIZE(pipe, plane), (crtc_h << 16) | crtc_w);
+	I915_WRITE(PLANE_SIZE(pipe, plane), plane_size);
    	I915_WRITE(PLANE_CTL(pipe, plane), plane_ctl);
    	I915_WRITE(PLANE_SURF(pipe, plane), surf_addr);
    	POSTING_READ(PLANE_SURF(pipe, plane));
@@ -1310,16 +1341,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
    		goto out;
    	}
 
-	if (!dev->mode_config.rotation_property)
-		dev->mode_config.rotation_property =
-			drm_mode_create_rotation_property(dev,
-							  BIT(DRM_ROTATE_0) |
-							  BIT(DRM_ROTATE_180));
-
-	if (dev->mode_config.rotation_property)
-		drm_object_attach_property(&intel_plane->base.base,
-					   dev->mode_config.rotation_property,
-					   state->base.rotation);
+	intel_create_rotation_property(dev, intel_plane);
 
    	drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
 
--

1.7.10.4

Quoted 15 lines
Quoted 5 lines
Quoted 5 lines
Quoted 5 lines
Quoted 5 lines
Quoted 4 lines

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

Quoted 10 lines
Quoted 9 lines
Quoted 9 lines
Quoted 8 lines

--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

--
Ville Syrjälä
Intel OTC
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

#10 lore raw

Re: [PATCH 2/2] drm/i915/skl: Support for 90/270 rotation

Quoted 63 lines · Sonika
Quoted 54 lines · Matt Roper
Quoted 46 lines · Ville Syrjälä
Quoted 45 lines · Sonika
Quoted 42 lines · Ville Syrjälä
Quoted 30 lines · Sonika
Quoted 16 lines · Ville Syrjälä
Quoted 15 lines · Daniel Vetter
Quoted 13 lines · Sonika Jindal

v2: Moving creation of property in a function, checking for 90/270 rotation simultaneously (Chris)
Letting primary plane to be positioned
v3: Adding if/else for 90/270 and rest params programming, adding check for pixel_format, some cleanup (review comments)
v4: Adding right pixel_formats, using src_* params instead of crtc_* for offset and size programming (Ville)
v5: Rebased on -nightly and Tvrtko's series for gtt remapping.
v6: Rebased on -nightly (Tvrtko's series merged)
v7: Moving pixel_format check to intel_atomic_plane_check (Matt)

Quoted 9 lines
Quoted 2 lines

Patches are missing the Testcase: tag, please add that. Also, are all the igt committed or not yet? Pulled these two in meanwhile.

Things are going somewhat broken because you didn't apply my plane state stuff. Hmm. Actually it sort of looks that it might work by luck as long as the primary plane doesn't get clipped since this is bashing the user state directly into the hardware registers and not the derived state (ie. clipped coordinates).

I was hoping your changes get merged, but not sure why they are held up.

Quoted 7 lines
Quoted 3 lines

Also I see my review comment about the 90 vs. 270 rotation mixup was ignored at least.

I never really got the to understand the need of reversing 90 and 270 :) The last discussion was not concluded, AFAIR.
Things look correct to me and work fine with the testcase also. Is there something completely different which I am unable to get?

BSpec gives me the impression the hw rotation is cw, whereas the drm one is ccw.

Quoted 6 lines
Quoted 2 lines

Yes, HW rotation is cw as per bspec. In drm, where do we consider it as anti-cw? I assume it is cw because all the macros work as expected, ie cw.

The ccw rule was inherited from XRandR. I'm not sure what macros you mean, but drm_rect_rotate() will certainly give you wrong results if you assume cw.

Quoted 6 lines

It seems like this information needs to be added to the property section of the DRM DocBook; continuing to follow XRandR probably makes sense if that's what's agreed on, but there's no indication of that design philosophy in the actual DRM documentation today, so we're in danger of having different driver authors use conflicting interpretations.

Quoted 8 lines

Ok, I will create a DocBook patch with description for 90/270 rotation (Anyways 90/270 rotation is not added in the rotation property in documentation). Will there be any other place for this or i915's rotation property?

Also, I will send a patch to flip 90/270 in i915. I am just worried, that it will look confusing to check for DRM_ROTATE_90 and use PLANE_CTL_ROTATE_270 for programming. I will add a comment though.

Just add a comment stating that drm is ccw (to stay compatible with Xrandr) and i915 hw is cw. That should explain it all.

There's other places where the linux kernel and intel hw people disagree on definitions, it just happens.
-Daniel

Signature · 7 lines
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#11 lore raw

PATCH 1/2 drm/i915: Swapping 90 and 270 to be compliant with Xrandr

Since DRM_ROTATE is counter clockwise (which is compliant with Xrandr), and HW rotation is clockwise, swapping 90/270 to work as expected from userspace.

---
 drivers/gpu/drm/i915/intel_display.c |    8 ++++++--
 drivers/gpu/drm/i915/intel_sprite.c  |    8 ++++++--
 2 files changed, 12 insertions(+), 4 deletions(-)
drivers/gpu/drm/i915/intel_display.c +6 -2
index 97922fb..0d7da3f 100644
@@ -3039,8 +3039,12 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
 	plane = crtc->primary;
 	rotation = plane->state->rotation;
 	switch (rotation) {
+	/*
+	 * DRM_ROTATE_ is counter clockwise to stay compatible with Xrandr
+	 * while i915 HW rotation is clockwise, thats why this swapping.
+	 */
 	case BIT(DRM_ROTATE_90):
-		plane_ctl |= PLANE_CTL_ROTATE_90;
+		plane_ctl |= PLANE_CTL_ROTATE_270;
 		break;
 
 	case BIT(DRM_ROTATE_180):
@@ -3048,7 +3052,7 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
 		break;
 
 	case BIT(DRM_ROTATE_270):
-		plane_ctl |= PLANE_CTL_ROTATE_270;
+		plane_ctl |= PLANE_CTL_ROTATE_90;
 		break;
 	}
 
drivers/gpu/drm/i915/intel_sprite.c +6 -2
index e3d41c0..765095e 100644
@@ -259,8 +259,12 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 
 	rotation = drm_plane->state->rotation;
 	switch (rotation) {
+	/*
+	 * DRM_ROTATE_ is counter clockwise to stay compatible with Xrandr
+	 * while i915 HW rotation is clockwise, thats why this swapping.
+	 */
 	case BIT(DRM_ROTATE_90):
-		plane_ctl |= PLANE_CTL_ROTATE_90;
+		plane_ctl |= PLANE_CTL_ROTATE_270;
 		break;
 
 	case BIT(DRM_ROTATE_180):
@@ -268,7 +272,7 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 		break;
 
 	case BIT(DRM_ROTATE_270):
-		plane_ctl |= PLANE_CTL_ROTATE_270;
+		plane_ctl |= PLANE_CTL_ROTATE_90;
 		break;
 	}
 
Signature · 6 lines
1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#12 lore raw

PATCH 2/2 Documentation/drm: Update rotation property with 90/270 and description

---
 Documentation/DocBook/drm.tmpl |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
Documentation/DocBook/drm.tmpl +5 -2
index f4976cd..266d50a 100644
@@ -2853,9 +2853,12 @@ void intel_crt_init(struct drm_device *dev)
 	<td rowspan="1" valign="top" >Plane</td>
 	<td valign="top" >“rotation”</td>
 	<td valign="top" >BITMASK</td>
-	<td valign="top" >{ 0, "rotate-0" }, { 2, "rotate-180" }</td>
+	<td valign="top" >{ 0, "rotate-0" }, { 1, "rotate-90" },
+				{ 2, "rotate-180" }, { 3, "rotate-270" }</td>
 	<td valign="top" >Plane</td>
-	<td valign="top" >TBD</td>
+	<td valign="top" >To set plane HW rotation. This rotation property does
+		the plane rotation in counter clockwise direction which is
+		inline with the way XRandr works.</td>
 	</tr>
 	<tr>
 	<td rowspan="17" valign="top" >SDVO-TV</td>
Signature · 6 lines
1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#13 lore raw

Re: [PATCH 2/2] Documentation/drm: Update rotation property with 90/270 and description

Quoted 11 lines · Sonika Jindal
---
 Documentation/DocBook/drm.tmpl |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
Documentation/DocBook/drm.tmpl +0 -0
index f4976cd..266d50a 100644
@@ -2853,9 +2853,12 @@ void intel_crt_init(struct drm_device *dev)
 	<td rowspan="1" valign="top" >Plane</td>

Documentation/DocBook/drm.tmpl void intel_crt_init(struct drm_device *dev) · line 2861

Quoted 10 lines
Documentation/DocBook/drm.tmpl +5 -2
 	<td valign="top" >“rotation”</td>
 	<td valign="top" >BITMASK</td>
-	<td valign="top" >{ 0, "rotate-0" }, { 2, "rotate-180" }</td>
+	<td valign="top" >{ 0, "rotate-0" }, { 1, "rotate-90" },
+				{ 2, "rotate-180" }, { 3, "rotate-270" }</td>
 	<td valign="top" >Plane</td>
-	<td valign="top" >TBD</td>
+	<td valign="top" >To set plane HW rotation. This rotation property does
+		the plane rotation in counter clockwise direction which is
+		inline with the way XRandr works.</td>

Since this touches shared code can you please resend this patch with dri-devel added to cc? BKM is to add a Cc: dri-devel ... line to the sob section of the patch, then git send-email will automatically pick it up. -Daniel

Quoted 10 lines
Documentation/DocBook/drm.tmpl +0 -0
 	</tr>
 	<tr>
 	<td rowspan="17" valign="top" >SDVO-TV</td>
Signature · 6 lines
1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Signature · 7 lines
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#14 lore raw

Re: [PATCH 2/2] Documentation/drm: Update rotation property with 90/270 and description

Quoted 19 lines · Daniel Vetter
Quoted 18 lines · Sonika Jindal
---
  Documentation/DocBook/drm.tmpl |    7 +++++--
  1 file changed, 5 insertions(+), 2 deletions(-)
Documentation/DocBook/drm.tmpl +2 -2
index f4976cd..266d50a 100644
@@ -2853,9 +2853,12 @@ void intel_crt_init(struct drm_device *dev)
  	<td rowspan="1" valign="top" >Plane</td>
  	<td valign="top" >“rotation”</td>
  	<td valign="top" >BITMASK</td>
-	<td valign="top" >{ 0, "rotate-0" }, { 2, "rotate-180" }</td>
+	<td valign="top" >{ 0, "rotate-0" }, { 1, "rotate-90" },
+				{ 2, "rotate-180" }, { 3, "rotate-270" }</td>
  	<td valign="top" >Plane</td>
-	<td valign="top" >TBD</td>
Quoted 9 lines

Documentation/DocBook/drm.tmpl void intel_crt_init(struct drm_device *dev) · line 2861

Quoted 3 lines
Documentation/DocBook/drm.tmpl +3 -0
+	<td valign="top" >To set plane HW rotation. This rotation property does
+		the plane rotation in counter clockwise direction which is
+		inline with the way XRandr works.</td>

Since this touches shared code can you please resend this patch with dri-devel added to cc? BKM is to add a Cc: dri-devel ... line to the sob section of the patch, then git send-email will automatically pick it up. -Daniel

But I am changing the description for only the rotation property for i915.

Quoted 11 lines
Quoted 10 lines
Documentation/DocBook/drm.tmpl +0 -1
  	</tr>
  	<tr>
  	<td rowspan="17" valign="top" >SDVO-TV</td>
--

1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

#15 lore raw

Re: [PATCH 2/2] Documentation/drm: Update rotation property with 90/270 and description

Quoted 31 lines · Sonika
Quoted 19 lines · Daniel Vetter
Quoted 18 lines · Sonika Jindal
---
 Documentation/DocBook/drm.tmpl |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
Documentation/DocBook/drm.tmpl +2 -2
index f4976cd..266d50a 100644
@@ -2853,9 +2853,12 @@ void intel_crt_init(struct drm_device *dev)
 	<td rowspan="1" valign="top" >Plane</td>
 	<td valign="top" >“rotation”</td>
 	<td valign="top" >BITMASK</td>
-	<td valign="top" >{ 0, "rotate-0" }, { 2, "rotate-180" }</td>
+	<td valign="top" >{ 0, "rotate-0" }, { 1, "rotate-90" },
+				{ 2, "rotate-180" }, { 3, "rotate-270" }</td>
 	<td valign="top" >Plane</td>
-	<td valign="top" >TBD</td>
Quoted 9 lines

Documentation/DocBook/drm.tmpl void intel_crt_init(struct drm_device *dev) · line 2861

Quoted 3 lines
Documentation/DocBook/drm.tmpl +3 -0
+	<td valign="top" >To set plane HW rotation. This rotation property does
+		the plane rotation in counter clockwise direction which is
+		inline with the way XRandr works.</td>

Since this touches shared code can you please resend this patch with dri-devel added to cc? BKM is to add a Cc: dri-devel ... line to the sob section of the patch, then git send-email will automatically pick it up. -Daniel

Quoted 1 line

But I am changing the description for only the rotation property for i915.

Property names are supposed to be somewhat standardized across all drivers, and omapdrm already supports rotation. This is way we have this shared table, so that other driver authors know what's going on. Please resend.
-Daniel

Signature · 7 lines
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#16 lore raw

PATCH 1/1 Documentation/drm: Update rotation property with 90/270 and description

---
 Documentation/DocBook/drm.tmpl |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
Documentation/DocBook/drm.tmpl +5 -2
index f4976cd..266d50a 100644
@@ -2853,9 +2853,12 @@ void intel_crt_init(struct drm_device *dev)
 	<td rowspan="1" valign="top" >Plane</td>
 	<td valign="top" >“rotation”</td>
 	<td valign="top" >BITMASK</td>
-	<td valign="top" >{ 0, "rotate-0" }, { 2, "rotate-180" }</td>
+	<td valign="top" >{ 0, "rotate-0" }, { 1, "rotate-90" },
+				{ 2, "rotate-180" }, { 3, "rotate-270" }</td>
 	<td valign="top" >Plane</td>
-	<td valign="top" >TBD</td>
+	<td valign="top" >To set plane HW rotation. This rotation property does
+		the plane rotation in counter clockwise direction which is
+		inline with the way XRandr works.</td>
 	</tr>
 	<tr>
 	<td rowspan="17" valign="top" >SDVO-TV</td>
Signature · 6 lines
1.7.10.4

_______________________________________________
dri-devel mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/dri-devel
#17 lore raw

Re: [Intel-gfx] [PATCH] Documentation/drm: Update rotation property with 90/270 and description

Quoted 12 lines · Sonika Jindal
---
 Documentation/DocBook/drm.tmpl |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
Documentation/DocBook/drm.tmpl +0 -0
index f4976cd..266d50a 100644
@@ -2853,9 +2853,12 @@ void intel_crt_init(struct drm_device *dev)
 	<td rowspan="1" valign="top" >Plane</td>

Documentation/DocBook/drm.tmpl void intel_crt_init(struct drm_device *dev) · line 2861

Quoted 10 lines
Documentation/DocBook/drm.tmpl +5 -2
 	<td valign="top" >“rotation”</td>
 	<td valign="top" >BITMASK</td>
-	<td valign="top" >{ 0, "rotate-0" }, { 2, "rotate-180" }</td>
+	<td valign="top" >{ 0, "rotate-0" }, { 1, "rotate-90" },
+				{ 2, "rotate-180" }, { 3, "rotate-270" }</td>
 	<td valign="top" >Plane</td>
-	<td valign="top" >TBD</td>
+	<td valign="top" >To set plane HW rotation. This rotation property does
+		the plane rotation in counter clockwise direction which is
+		inline with the way XRandr works.</td>

I would suggest moving the thing to the generci props section since we have omap and i915 both supporting it.

As for the description, we should also document the reflect flags.

I might write it as something like this:
"rotate-0,rotate-90,rotate-180,rotate-270 rotate the image by the specified amount in degrees in a counter clockwise direction. reflect-x,reflect-y reflect the image along the specified axis, prior to rotation."

Quoted 10 lines
Documentation/DocBook/drm.tmpl +0 -0
 	</tr>
 	<tr>
 	<td rowspan="17" valign="top" >SDVO-TV</td>
Signature · 6 lines
1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Signature · 6 lines
Ville Syrjälä
Intel OTC
_______________________________________________
dri-devel mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/dri-devel
#18 lore raw

Re: [Intel-gfx] [PATCH] Documentation/drm: Update rotation property with 90/270 and description

Quoted 18 lines · Ville Syrjälä
Quoted 17 lines · Sonika Jindal
---
  Documentation/DocBook/drm.tmpl |    7 +++++--
  1 file changed, 5 insertions(+), 2 deletions(-)
Documentation/DocBook/drm.tmpl +2 -1
index f4976cd..266d50a 100644
@@ -2853,9 +2853,12 @@ void intel_crt_init(struct drm_device *dev)
  	<td rowspan="1" valign="top" >Plane</td>
  	<td valign="top" >“rotation”</td>
  	<td valign="top" >BITMASK</td>
-	<td valign="top" >{ 0, "rotate-0" }, { 2, "rotate-180" }</td>
+	<td valign="top" >{ 0, "rotate-0" }, { 1, "rotate-90" },
+				{ 2, "rotate-180" }, { 3, "rotate-270" }</td>
Quoted 8 lines

Documentation/DocBook/drm.tmpl void intel_crt_init(struct drm_device *dev) · line 2861

Quoted 5 lines
Documentation/DocBook/drm.tmpl +3 -1
  	<td valign="top" >Plane</td>
-	<td valign="top" >TBD</td>
+	<td valign="top" >To set plane HW rotation. This rotation property does
+		the plane rotation in counter clockwise direction which is
+		inline with the way XRandr works.</td>

I would suggest moving the thing to the generci props section since we have omap and i915 both supporting it.

You mean in DRM properties section?
Right now, OMAP section also has rotation property. I will remove it from OMAP section as well if you think drm is the better place.

Quoted 20 lines

As for the description, we should also document the reflect flags.

I might write it as something like this:
"rotate-0,rotate-90,rotate-180,rotate-270 rotate the image by the specified amount in degrees in a counter clockwise direction. reflect-x,reflect-y reflect the image along the specified axis, prior to rotation."

Quoted 10 lines
Documentation/DocBook/drm.tmpl +0 -1
  	</tr>
  	<tr>
  	<td rowspan="17" valign="top" >SDVO-TV</td>
--

1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

_______________________________________________
dri-devel mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/dri-devel

#19 lore raw

Re: [PATCH] Documentation/drm: Update rotation property with 90/270 and description

Quoted 31 lines · Sonika
Quoted 20 lines · Ville Syrjälä
Quoted 19 lines · Sonika Jindal
---
  Documentation/DocBook/drm.tmpl |    7 +++++--
  1 file changed, 5 insertions(+), 2 deletions(-)
Documentation/DocBook/drm.tmpl +2 -1
index f4976cd..266d50a 100644
@@ -2853,9 +2853,12 @@ void intel_crt_init(struct drm_device *dev)
      <td rowspan="1" valign="top" >Plane</td>
      <td valign="top" >“rotation”</td>
      <td valign="top" >BITMASK</td>
-    <td valign="top" >{ 0, "rotate-0" }, { 2, "rotate-180" }</td>
+    <td valign="top" >{ 0, "rotate-0" }, { 1, "rotate-90" },
+                { 2, "rotate-180" }, { 3, "rotate-270" }</td>
      <td valign="top" >Plane</td>
Quoted 8 lines

Documentation/DocBook/drm.tmpl void intel_crt_init(struct drm_device *dev) · line 2861

Quoted 5 lines
Documentation/DocBook/drm.tmpl +1 -1
-    <td valign="top" >TBD</td>
+    <td valign="top" >To set plane HW rotation. This rotation

property does

Documentation/DocBook/drm.tmpl +2 -0
+        the plane rotation in counter clockwise direction which is
+        inline with the way XRandr works.</td>

I would suggest moving the thing to the generci props section since we have omap and i915 both supporting it.

Quoted 7 lines

You mean in DRM properties section?
Right now, OMAP section also has rotation property. I will remove it from OMAP section as well if you think drm is the better place.

Quoted 3 lines

As for the description, we should also document the reflect flags.

Also, i915 doesn't support reflect flags. Only rotation is supported there. For the "generic" part, you meant just moving to the generic group in i915 property section?

Quoted 12 lines
Quoted 12 lines

I might write it as something like this:
"rotate-0,rotate-90,rotate-180,rotate-270 rotate the image by the specified amount in degrees in a counter clockwise direction. reflect-x,reflect-y reflect the image along the specified axis, prior to rotation."

Quoted 6 lines
      </tr>
      <tr>
      <td rowspan="17" valign="top" >SDVO-TV</td>

--
1.7.10.4

Quoted 5 lines
Quoted 5 lines
Quoted 4 lines

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

#20 lore raw

Re: [PATCH] Documentation/drm: Update rotation property with 90/270 and description

In reply to Jindal, Sonika
Quoted 31 lines · Sonika
Quoted 20 lines · Ville Syrjälä
Quoted 19 lines · Sonika Jindal
---
  Documentation/DocBook/drm.tmpl |    7 +++++--
  1 file changed, 5 insertions(+), 2 deletions(-)
Documentation/DocBook/drm.tmpl +2 -1
index f4976cd..266d50a 100644
@@ -2853,9 +2853,12 @@ void intel_crt_init(struct drm_device *dev)
      <td rowspan="1" valign="top" >Plane</td>
      <td valign="top" >“rotation”</td>
      <td valign="top" >BITMASK</td>
-    <td valign="top" >{ 0, "rotate-0" }, { 2, "rotate-180" }</td>
+    <td valign="top" >{ 0, "rotate-0" }, { 1, "rotate-90" },
+                { 2, "rotate-180" }, { 3, "rotate-270" }</td>
      <td valign="top" >Plane</td>
Quoted 8 lines

Documentation/DocBook/drm.tmpl void intel_crt_init(struct drm_device *dev) · line 2861

Quoted 5 lines
Documentation/DocBook/drm.tmpl +1 -1
-    <td valign="top" >TBD</td>
+    <td valign="top" >To set plane HW rotation. This rotation

property does

Documentation/DocBook/drm.tmpl +2 -0
+        the plane rotation in counter clockwise direction which is
+        inline with the way XRandr works.</td>

I would suggest moving the thing to the generci props section since we have omap and i915 both supporting it.

Quoted 7 lines

You mean in DRM properties section?
Right now, OMAP section also has rotation property. I will remove it from OMAP section as well if you think drm is the better place.

Quoted 3 lines

As for the description, we should also document the reflect flags.

i915 doesn't support reflect flags. It only create rotation property with rotation flags.

For "generic" section, you mean moving to generic group of properties in i915 only right?

Quoted 12 lines
Quoted 12 lines

I might write it as something like this:
"rotate-0,rotate-90,rotate-180,rotate-270 rotate the image by the specified amount in degrees in a counter clockwise direction. reflect-x,reflect-y reflect the image along the specified axis, prior to rotation."

Quoted 6 lines
      </tr>
      <tr>
      <td rowspan="17" valign="top" >SDVO-TV</td>

--
1.7.10.4

Quoted 5 lines
Quoted 5 lines
Quoted 4 lines

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

#21 lore raw

Re: [PATCH] Documentation/drm: Update rotation property with 90/270 and description

Quoted 34 lines · Sonika
Quoted 31 lines · Sonika
Quoted 28 lines · Ville Syrjälä
Quoted 22 lines · Sonika Jindal
---
  Documentation/DocBook/drm.tmpl |    7 +++++--
  1 file changed, 5 insertions(+), 2 deletions(-)
Documentation/DocBook/drm.tmpl +3 -2
index f4976cd..266d50a 100644
@@ -2853,9 +2853,12 @@ void intel_crt_init(struct drm_device *dev)
      <td rowspan="1" valign="top" >Plane</td>
      <td valign="top" >“rotation”</td>
      <td valign="top" >BITMASK</td>
-    <td valign="top" >{ 0, "rotate-0" }, { 2, "rotate-180" }</td>
+    <td valign="top" >{ 0, "rotate-0" }, { 1, "rotate-90" },
+                { 2, "rotate-180" }, { 3, "rotate-270" }</td>
      <td valign="top" >Plane</td>
-    <td valign="top" >TBD</td>
+    <td valign="top" >To set plane HW rotation. This rotation

property does

Documentation/DocBook/drm.tmpl void intel_crt_init(struct drm_device *dev) · line 2861

Quoted 2 lines
Documentation/DocBook/drm.tmpl +2 -0
+        the plane rotation in counter clockwise direction which is
+        inline with the way XRandr works.</td>

I would suggest moving the thing to the generci props section since we have omap and i915 both supporting it.

Quoted 8 lines
Quoted 7 lines

You mean in DRM properties section?
Right now, OMAP section also has rotation property. I will remove it from OMAP section as well if you think drm is the better place.

Quoted 3 lines

As for the description, we should also document the reflect flags.

i915 doesn't support reflect flags.

It will as soon as I (or someone else) find a bit of time to implement it.

Quoted 5 lines

It only create rotation property
with rotation flags.

For "generic" section, you mean moving to generic group of properties in i915 only right?

I meant the entire thing. I don't think we should care too much about which actual bits each driver supports since that can even depend on which plane is used in some specific platform. So we should just document all the possible bits, and if you want you could add a note stating that a specific driver/platform/plane may not support all of them.

Quoted 17 lines
Quoted 17 lines
Quoted 17 lines

I might write it as something like this:
"rotate-0,rotate-90,rotate-180,rotate-270 rotate the image by the specified amount in degrees in a counter clockwise direction. reflect-x,reflect-y reflect the image along the specified axis, prior to rotation."

Quoted 10 lines
      </tr>
      <tr>
      <td rowspan="17" valign="top" >SDVO-TV</td>

--
1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

Signature · 6 lines
Ville Syrjälä
Intel OTC
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#22 lore raw

PATCH 1/1 Documentation/drm: Update rotation property

Moving rotation property to "Drm" and removing from i915 and omap. Also, adding description to the property

---
 Documentation/DocBook/drm.tmpl |   41 ++++++++++++++++++----------------------
 1 file changed, 18 insertions(+), 23 deletions(-)
Documentation/DocBook/drm.tmpl +18 -23
index 109fde8..c0312cb 100644
@@ -2585,7 +2585,22 @@ void intel_crt_init(struct drm_device *dev)
 	<td valign="top" >Description/Restrictions</td>
 	</tr>
 	<tr>
-	<td rowspan="36" valign="top" >DRM</td>
+	<td rowspan="37" valign="top" >DRM</td>
+	<td valign="top" >Generic</td>
+	<td valign="top" >“rotation”</td>
+	<td valign="top" >BITMASK</td>
+	<td valign="top" >{ 0, "rotate-0" },
+	{ 1, "rotate-90" },
+	{ 2, "rotate-180" },
+	{ 3, "rotate-270" },
+	{ 4, "reflect-x" },
+	{ 5, "reflect-y" }</td>
+	<td valign="top" >CRTC, Plane</td>
+	<td valign="top" >rotate-(degrees) rotates the image by the specified amount in degrees
+	in counter clockwise direction. reflect-x and reflect-y reflects the
+	image along the specified axis prior to rotation</td>
+	</tr>
+	<tr>
 	<td rowspan="5" valign="top" >Connector</td>
 	<td valign="top" >“EDID”</td>
 	<td valign="top" >BLOB | IMMUTABLE</td>
@@ -2846,7 +2861,7 @@ void intel_crt_init(struct drm_device *dev)
 	<td valign="top" >TBD</td>
 	</tr>
 	<tr>
-	<td rowspan="21" valign="top" >i915</td>
+	<td rowspan="20" valign="top" >i915</td>
 	<td rowspan="2" valign="top" >Generic</td>
 	<td valign="top" >"Broadcast RGB"</td>
 	<td valign="top" >ENUM</td>
@@ -2862,14 +2877,6 @@ void intel_crt_init(struct drm_device *dev)
 	<td valign="top" >TBD</td>
 	</tr>
 	<tr>
-	<td rowspan="1" valign="top" >Plane</td>
-	<td valign="top" >“rotation”</td>
-	<td valign="top" >BITMASK</td>
-	<td valign="top" >{ 0, "rotate-0" }, { 2, "rotate-180" }</td>
-	<td valign="top" >Plane</td>
-	<td valign="top" >TBD</td>
-	</tr>
-	<tr>
 	<td rowspan="17" valign="top" >SDVO-TV</td>
 	<td valign="top" >“mode”</td>
 	<td valign="top" >ENUM</td>
@@ -3377,19 +3384,7 @@ void intel_crt_init(struct drm_device *dev)
 	</tr>
 	<tr>
 	<td rowspan="2" valign="top" >omap</td>
-	<td rowspan="2" valign="top" >Generic</td>
-	<td valign="top" >“rotation”</td>
-	<td valign="top" >BITMASK</td>
-	<td valign="top" >{ 0, "rotate-0" },
-	{ 1, "rotate-90" },
-	{ 2, "rotate-180" },
-	{ 3, "rotate-270" },
-	{ 4, "reflect-x" },
-	{ 5, "reflect-y" }</td>
-	<td valign="top" >CRTC, Plane</td>
-	<td valign="top" >TBD</td>
-	</tr>
-	<tr>
+	<td valign="top" >Generic</td>
 	<td valign="top" >“zorder”</td>
 	<td valign="top" >RANGE</td>
 	<td valign="top" >Min=0, Max=3</td>
Signature · 6 lines
1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#23 lore raw

Re: [Intel-gfx] [PATCH] Documentation/drm: Update rotation property

Quoted 6 lines · Sonika Jindal

Moving rotation property to "Drm" and removing from i915 and omap. Also, adding description to the property

Applied to drm-misc, thanks.
-Daniel

Quoted 84 lines
---
 Documentation/DocBook/drm.tmpl |   41 ++++++++++++++++++----------------------
 1 file changed, 18 insertions(+), 23 deletions(-)
Documentation/DocBook/drm.tmpl +18 -23
index 109fde8..c0312cb 100644
@@ -2585,7 +2585,22 @@ void intel_crt_init(struct drm_device *dev)
 	<td valign="top" >Description/Restrictions</td>
 	</tr>
 	<tr>
-	<td rowspan="36" valign="top" >DRM</td>
+	<td rowspan="37" valign="top" >DRM</td>
+	<td valign="top" >Generic</td>
+	<td valign="top" >“rotation”</td>
+	<td valign="top" >BITMASK</td>
+	<td valign="top" >{ 0, "rotate-0" },
+	{ 1, "rotate-90" },
+	{ 2, "rotate-180" },
+	{ 3, "rotate-270" },
+	{ 4, "reflect-x" },
+	{ 5, "reflect-y" }</td>
+	<td valign="top" >CRTC, Plane</td>
+	<td valign="top" >rotate-(degrees) rotates the image by the specified amount in degrees
+	in counter clockwise direction. reflect-x and reflect-y reflects the
+	image along the specified axis prior to rotation</td>
+	</tr>
+	<tr>
 	<td rowspan="5" valign="top" >Connector</td>
 	<td valign="top" >“EDID”</td>
 	<td valign="top" >BLOB | IMMUTABLE</td>
@@ -2846,7 +2861,7 @@ void intel_crt_init(struct drm_device *dev)
 	<td valign="top" >TBD</td>
 	</tr>
 	<tr>
-	<td rowspan="21" valign="top" >i915</td>
+	<td rowspan="20" valign="top" >i915</td>
 	<td rowspan="2" valign="top" >Generic</td>
 	<td valign="top" >"Broadcast RGB"</td>
 	<td valign="top" >ENUM</td>
@@ -2862,14 +2877,6 @@ void intel_crt_init(struct drm_device *dev)
 	<td valign="top" >TBD</td>
 	</tr>
 	<tr>
-	<td rowspan="1" valign="top" >Plane</td>
-	<td valign="top" >“rotation”</td>
-	<td valign="top" >BITMASK</td>
-	<td valign="top" >{ 0, "rotate-0" }, { 2, "rotate-180" }</td>
-	<td valign="top" >Plane</td>
-	<td valign="top" >TBD</td>
-	</tr>
-	<tr>
 	<td rowspan="17" valign="top" >SDVO-TV</td>
 	<td valign="top" >“mode”</td>
 	<td valign="top" >ENUM</td>
@@ -3377,19 +3384,7 @@ void intel_crt_init(struct drm_device *dev)
 	</tr>
 	<tr>
 	<td rowspan="2" valign="top" >omap</td>
-	<td rowspan="2" valign="top" >Generic</td>
-	<td valign="top" >“rotation”</td>
-	<td valign="top" >BITMASK</td>
-	<td valign="top" >{ 0, "rotate-0" },
-	{ 1, "rotate-90" },
-	{ 2, "rotate-180" },
-	{ 3, "rotate-270" },
-	{ 4, "reflect-x" },
-	{ 5, "reflect-y" }</td>
-	<td valign="top" >CRTC, Plane</td>
-	<td valign="top" >TBD</td>
-	</tr>
-	<tr>
+	<td valign="top" >Generic</td>
 	<td valign="top" >“zorder”</td>
 	<td valign="top" >RANGE</td>
 	<td valign="top" >Min=0, Max=3</td>
Signature · 6 lines
1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Signature · 7 lines
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/dri-devel
Reviewed-by on v1 1/2
#24 lore raw

Re: [PATCH 1/2] drm/i915: Swapping 90 and 270 to be compliant with Xrandr

In reply to Sonika Jindal
Quoted 7 lines · Sonika Jindal

Since DRM_ROTATE is counter clockwise (which is compliant with Xrandr), and HW rotation is clockwise, swapping 90/270 to work as expected from userspace.

Looks like this needs a rebase, but other than that this is

Quoted 61 lines
---
 drivers/gpu/drm/i915/intel_display.c |    8 ++++++--
 drivers/gpu/drm/i915/intel_sprite.c  |    8 ++++++--
 2 files changed, 12 insertions(+), 4 deletions(-)
drivers/gpu/drm/i915/intel_display.c +6 -2
index 97922fb..0d7da3f 100644
@@ -3039,8 +3039,12 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
 	plane = crtc->primary;
 	rotation = plane->state->rotation;
 	switch (rotation) {
+	/*
+	 * DRM_ROTATE_ is counter clockwise to stay compatible with Xrandr
+	 * while i915 HW rotation is clockwise, thats why this swapping.
+	 */
 	case BIT(DRM_ROTATE_90):
-		plane_ctl |= PLANE_CTL_ROTATE_90;
+		plane_ctl |= PLANE_CTL_ROTATE_270;
 		break;
 
 	case BIT(DRM_ROTATE_180):
@@ -3048,7 +3052,7 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
 		break;
 
 	case BIT(DRM_ROTATE_270):
-		plane_ctl |= PLANE_CTL_ROTATE_270;
+		plane_ctl |= PLANE_CTL_ROTATE_90;
 		break;
 	}
 
drivers/gpu/drm/i915/intel_sprite.c +6 -2
index e3d41c0..765095e 100644
@@ -259,8 +259,12 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 
 	rotation = drm_plane->state->rotation;
 	switch (rotation) {
+	/*
+	 * DRM_ROTATE_ is counter clockwise to stay compatible with Xrandr
+	 * while i915 HW rotation is clockwise, thats why this swapping.
+	 */
 	case BIT(DRM_ROTATE_90):
-		plane_ctl |= PLANE_CTL_ROTATE_90;
+		plane_ctl |= PLANE_CTL_ROTATE_270;
 		break;
 
 	case BIT(DRM_ROTATE_180):
@@ -268,7 +272,7 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 		break;
 
 	case BIT(DRM_ROTATE_270):
-		plane_ctl |= PLANE_CTL_ROTATE_270;
+		plane_ctl |= PLANE_CTL_ROTATE_90;
 		break;
 	}
 
Signature · 1 line
1.7.10.4
Signature · 6 lines
Ville Syrjälä
Intel OTC
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#25 lore raw

PATCH 1/1 drm/i915: Swapping 90 and 270 to be compliant with Xrandr

Since DRM_ROTATE is counter clockwise (which is compliant with Xrandr), and HW rotation is clockwise, swapping 90/270 to work as expected from userspace.

v2: Rebased

---
 drivers/gpu/drm/i915/intel_display.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
drivers/gpu/drm/i915/intel_display.c +6 -2
index 9d2d6fb..a583422 100644
@@ -3010,12 +3010,16 @@ u32 skl_plane_ctl_rotation(unsigned int rotation)
 	switch (rotation) {
 	case BIT(DRM_ROTATE_0):
 		break;
+	/*
+	 * DRM_ROTATE_ is counter clockwise to stay compatible with Xrandr
+	 * while i915 HW rotation is clockwise, thats why this swapping.
+	 */
 	case BIT(DRM_ROTATE_90):
-		return PLANE_CTL_ROTATE_90;
+		return PLANE_CTL_ROTATE_270;
 	case BIT(DRM_ROTATE_180):
 		return PLANE_CTL_ROTATE_180;
 	case BIT(DRM_ROTATE_270):
-		return PLANE_CTL_ROTATE_270;
+		return PLANE_CTL_ROTATE_90;
 	default:
 		MISSING_CASE(rotation);
 	}
Signature · 6 lines
1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#26 lore raw

Re: [PATCH] drm/i915: Swapping 90 and 270 to be compliant with Xrandr

Quoted 10 lines · Sonika Jindal

Since DRM_ROTATE is counter clockwise (which is compliant with Xrandr), and HW rotation is clockwise, swapping 90/270 to work as expected from userspace.

v2: Rebased

I've fixed the summary to make it clear this is skl-only and applied the patch to dinq, thanks.
-Daniel

Quoted 34 lines
---
 drivers/gpu/drm/i915/intel_display.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
drivers/gpu/drm/i915/intel_display.c +6 -2
index 9d2d6fb..a583422 100644
@@ -3010,12 +3010,16 @@ u32 skl_plane_ctl_rotation(unsigned int rotation)
 	switch (rotation) {
 	case BIT(DRM_ROTATE_0):
 		break;
+	/*
+	 * DRM_ROTATE_ is counter clockwise to stay compatible with Xrandr
+	 * while i915 HW rotation is clockwise, thats why this swapping.
+	 */
 	case BIT(DRM_ROTATE_90):
-		return PLANE_CTL_ROTATE_90;
+		return PLANE_CTL_ROTATE_270;
 	case BIT(DRM_ROTATE_180):
 		return PLANE_CTL_ROTATE_180;
 	case BIT(DRM_ROTATE_270):
-		return PLANE_CTL_ROTATE_270;
+		return PLANE_CTL_ROTATE_90;
 	default:
 		MISSING_CASE(rotation);
 	}
Signature · 6 lines
1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Signature · 7 lines
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#27 lore raw

Re: [PATCH 2/2] drm/i915/skl: Support for 90/270 rotation

In reply to Jindal, Sonika
Quoted 10 lines · Sonika
Quoted 8 lines
Quoted 4 lines

I never really got the to understand the need of reversing 90 and 270 :) The last discussion was not concluded, AFAIR.
Things look correct to me and work fine with the testcase also. Is there something completely different which I am unable to get?

BSpec gives me the impression the hw rotation is cw, whereas the drm one is ccw.

Yes, HW rotation is cw as per bspec. In drm, where do we consider it as anti-cw? I assume it is cw because all the macros work as expected, ie cw.

The DRM is quite a direct implementation of the X semantics:

http://cgit.freedesktop.org/xorg/proto/randrproto/tree/randrproto.txt

"In Randr, the coordinate system is rotated in a counter-clockwise direction relative to the normal orientation"

This matches the usual orientation of the trigonometric circle.

Signature · 5 lines
Damien
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#28 lore raw

Re: [PATCH 2/2] drm/i915/skl: Support for 90/270 rotation

In reply to Daniel Vetter
Quoted 12 lines · Daniel Vetter
Quoted 11 lines · Sonika Jindal

v2: Moving creation of property in a function, checking for 90/270 rotation simultaneously (Chris)
Letting primary plane to be positioned
v3: Adding if/else for 90/270 and rest params programming, adding check for pixel_format, some cleanup (review comments)
v4: Adding right pixel_formats, using src_* params instead of crtc_* for offset and size programming (Ville)
v5: Rebased on -nightly and Tvrtko's series for gtt remapping.
v6: Rebased on -nightly (Tvrtko's series merged)
v7: Moving pixel_format check to intel_atomic_plane_check (Matt)

Quoted 6 lines
Quoted 2 lines

Patches are missing the Testcase: tag, please add that. Also, are all the igt committed or not yet? Pulled these two in meanwhile. -Daniel

The kms_rotation_crc is updated for 90/270 tests and is posted on the mailing list. Not sure if an r-b is a must for tests too? -Sonika

Quoted 299 lines
Quoted 299 lines
---
  drivers/gpu/drm/i915/i915_reg.h           |    2 +
  drivers/gpu/drm/i915/intel_atomic_plane.c |   24 ++++++++
  drivers/gpu/drm/i915/intel_display.c      |   88 ++++++++++++++++++++---------
  drivers/gpu/drm/i915/intel_drv.h          |    6 ++
  drivers/gpu/drm/i915/intel_sprite.c       |   52 ++++++++++++-----
  5 files changed, 131 insertions(+), 41 deletions(-)
drivers/gpu/drm/i915/i915_reg.h +2 -0
index b522eb6..564bbd5 100644
@@ -4854,7 +4854,9 @@ enum skl_disp_power_wells {
  #define   PLANE_CTL_ALPHA_HW_PREMULTIPLY	(  3 << 4)
  #define   PLANE_CTL_ROTATE_MASK			0x3
  #define   PLANE_CTL_ROTATE_0			0x0
+#define   PLANE_CTL_ROTATE_90			0x1
  #define   PLANE_CTL_ROTATE_180			0x2
+#define   PLANE_CTL_ROTATE_270			0x3
  #define _PLANE_STRIDE_1_A			0x70188
  #define _PLANE_STRIDE_2_A			0x70288
  #define _PLANE_STRIDE_3_A			0x70388
drivers/gpu/drm/i915/intel_atomic_plane.c +24 -0
index 976b891..a27ee8c 100644
@@ -162,6 +162,30 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
  			(1 << drm_plane_index(plane));
  	}
 
+	if (state->fb && intel_rotation_90_or_270(state->rotation)) {
+		if (!(state->fb->modifier[0] == I915_FORMAT_MOD_Y_TILED ||
+			state->fb->modifier[0] == I915_FORMAT_MOD_Yf_TILED)) {
+			DRM_DEBUG_KMS("Y/Yf tiling required for 90/270!\n");
+			return -EINVAL;
+		}
+
+		/*
+		 * 90/270 is not allowed with RGB64 16:16:16:16,
+		 * RGB 16-bit 5:6:5, and Indexed 8-bit.
+		 * TBD: Add RGB64 case once its added in supported format list.
+		 */
+		switch (state->fb->pixel_format) {
+		case DRM_FORMAT_C8:
+		case DRM_FORMAT_RGB565:
+			DRM_DEBUG_KMS("Unsupported pixel format %s for 90/270!\n",
+					drm_get_format_name(state->fb->pixel_format));
+			return -EINVAL;
+
+		default:
+			break;
+		}
+	}
+
  	return intel_plane->check_plane(plane, intel_state);
  }
 
drivers/gpu/drm/i915/intel_display.c +62 -26
index f0bbc22..4de544c 100644
@@ -2311,13 +2311,6 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
  	info->pitch = fb->pitches[0];
  	info->fb_modifier = fb->modifier[0];
 
-	if (!(info->fb_modifier == I915_FORMAT_MOD_Y_TILED ||
-	      info->fb_modifier == I915_FORMAT_MOD_Yf_TILED)) {
-		DRM_DEBUG_KMS(
-			      "Y or Yf tiling is needed for 90/270 rotation!\n");
-		return -EINVAL;
-	}
-
  	return 0;
  }
 
@@ -2919,8 +2912,12 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
  	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
  	struct drm_i915_gem_object *obj;
  	int pipe = intel_crtc->pipe;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
  	unsigned long surf_addr;
+	struct drm_plane *plane;
 
  	if (!intel_crtc->primary_enabled) {
  		I915_WRITE(PLANE_CTL(pipe, 0), 0);
@@ -2981,21 +2978,51 @@ static void skylake_update_primary_plane(struct drm_crtc *crtc,
  	}
 
  	plane_ctl |= PLANE_CTL_PLANE_GAMMA_DISABLE;
-	if (crtc->primary->state->rotation == BIT(DRM_ROTATE_180))
+
+	plane = crtc->primary;
+	rotation = plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
  		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
  	obj = intel_fb_obj(fb);
  	stride_div = intel_fb_stride_alignment(dev, fb->modifier[0],
  					       fb->pixel_format);
-	surf_addr = intel_plane_obj_offset(to_intel_plane(crtc->primary), obj);
+	surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj);
+
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride = Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+						fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		x_offset = stride * tile_height - y - (plane->state->src_h >> 16);
+		y_offset = x;
+		plane_size = ((plane->state->src_w >> 16) - 1) << 16 |
+					((plane->state->src_h >> 16) - 1);
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		x_offset = x;
+		y_offset = y;
+		plane_size = ((plane->state->src_h >> 16) - 1) << 16 |
+			((plane->state->src_w >> 16) - 1);
+	}
+	plane_offset = y_offset << 16 | x_offset;
 
  	I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl);
  	I915_WRITE(PLANE_POS(pipe, 0), 0);
-	I915_WRITE(PLANE_OFFSET(pipe, 0), (y << 16) | x);
-	I915_WRITE(PLANE_SIZE(pipe, 0),
-		   (intel_crtc->config->pipe_src_h - 1) << 16 |
-		   (intel_crtc->config->pipe_src_w - 1));
-	I915_WRITE(PLANE_STRIDE(pipe, 0), fb->pitches[0] / stride_div);
+	I915_WRITE(PLANE_OFFSET(pipe, 0), plane_offset);
+	I915_WRITE(PLANE_SIZE(pipe, 0), plane_size);
+	I915_WRITE(PLANE_STRIDE(pipe, 0), stride);
  	I915_WRITE(PLANE_SURF(pipe, 0), surf_addr);
 
  	POSTING_READ(PLANE_SURF(pipe, 0));
@@ -12406,23 +12433,32 @@ static struct drm_plane *intel_primary_plane_create(struct drm_device *dev,
  				 intel_primary_formats, num_formats,
  				 DRM_PLANE_TYPE_PRIMARY);
 
-	if (INTEL_INFO(dev)->gen >= 4) {
-		if (!dev->mode_config.rotation_property)
-			dev->mode_config.rotation_property =
-				drm_mode_create_rotation_property(dev,
-							BIT(DRM_ROTATE_0) |
-							BIT(DRM_ROTATE_180));
-		if (dev->mode_config.rotation_property)
-			drm_object_attach_property(&primary->base.base,
-				dev->mode_config.rotation_property,
-				state->base.rotation);
-	}
+	if (INTEL_INFO(dev)->gen >= 4)
+		intel_create_rotation_property(dev, primary);
 
  	drm_plane_helper_add(&primary->base, &intel_plane_helper_funcs);
 
  	return &primary->base;
  }
 
+void intel_create_rotation_property(struct drm_device *dev, struct intel_plane *plane)
+{
+	if (!dev->mode_config.rotation_property) {
+		unsigned long flags = BIT(DRM_ROTATE_0) |
+			BIT(DRM_ROTATE_180);
+
+		if (INTEL_INFO(dev)->gen >= 9)
+			flags |= BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270);
+
+		dev->mode_config.rotation_property =
+			drm_mode_create_rotation_property(dev, flags);
+	}
+	if (dev->mode_config.rotation_property)
+		drm_object_attach_property(&plane->base.base,
+				dev->mode_config.rotation_property,
+				plane->base.state->rotation);
+}
+
  static int
  intel_check_cursor_plane(struct drm_plane *plane,
  			 struct intel_plane_state *state)
drivers/gpu/drm/i915/intel_drv.h +6 -0
index 811a1db..d32025a 100644
@@ -995,6 +995,12 @@ intel_rotation_90_or_270(unsigned int rotation)
  	return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
  }
 
+unsigned int
+intel_tile_height(struct drm_device *dev, uint32_t bits_per_pixel,
+		  uint64_t fb_modifier);
+void intel_create_rotation_property(struct drm_device *dev,
+					struct intel_plane *plane);
+
  bool intel_wm_need_update(struct drm_plane *plane,
  			  struct drm_plane_state *state);
 
drivers/gpu/drm/i915/intel_sprite.c +37 -15
index f41e872..83adc9b 100644
@@ -190,10 +190,13 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
  	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
  	const int pipe = intel_plane->pipe;
  	const int plane = intel_plane->plane + 1;
-	u32 plane_ctl, stride_div;
+	u32 plane_ctl, stride_div, stride;
  	int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
  	const struct drm_intel_sprite_colorkey *key = &intel_plane->ckey;
  	unsigned long surf_addr;
+	u32 tile_height, plane_offset, plane_size;
+	unsigned int rotation;
+	int x_offset, y_offset;
 
  	plane_ctl = PLANE_CTL_ENABLE |
  		PLANE_CTL_PIPE_CSC_ENABLE;
@@ -254,8 +257,20 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
  		MISSING_CASE(fb->modifier[0]);
  	}
 
-	if (drm_plane->state->rotation == BIT(DRM_ROTATE_180))
+	rotation = drm_plane->state->rotation;
+	switch (rotation) {
+	case BIT(DRM_ROTATE_90):
+		plane_ctl |= PLANE_CTL_ROTATE_90;
+		break;
+
+	case BIT(DRM_ROTATE_180):
  		plane_ctl |= PLANE_CTL_ROTATE_180;
+		break;
+
+	case BIT(DRM_ROTATE_270):
+		plane_ctl |= PLANE_CTL_ROTATE_270;
+		break;
+	}
 
  	intel_update_sprite_watermarks(drm_plane, crtc, src_w, src_h,
  				       pixel_size, true,
@@ -283,10 +298,26 @@ skl_update_plane(struct drm_plane *drm_plane, struct drm_crtc *crtc,
 
  	surf_addr = intel_plane_obj_offset(intel_plane, obj);
 
-	I915_WRITE(PLANE_OFFSET(pipe, plane), (y << 16) | x);
-	I915_WRITE(PLANE_STRIDE(pipe, plane), fb->pitches[0] / stride_div);
+	if (intel_rotation_90_or_270(rotation)) {
+		/* stride: Surface height in tiles */
+		tile_height = intel_tile_height(dev, fb->bits_per_pixel,
+							fb->modifier[0]);
+		stride = DIV_ROUND_UP(fb->height, tile_height);
+		plane_size = (src_w << 16) | src_h;
+		x_offset = stride * tile_height - y - (src_h + 1);
+		y_offset = x;
+	} else {
+		stride = fb->pitches[0] / stride_div;
+		plane_size = (src_h << 16) | src_w;
+		x_offset = x;
+		y_offset = y;
+	}
+	plane_offset = y_offset << 16 | x_offset;
+
+	I915_WRITE(PLANE_OFFSET(pipe, plane), plane_offset);
+	I915_WRITE(PLANE_STRIDE(pipe, plane), stride);
  	I915_WRITE(PLANE_POS(pipe, plane), (crtc_y << 16) | crtc_x);
-	I915_WRITE(PLANE_SIZE(pipe, plane), (crtc_h << 16) | crtc_w);
+	I915_WRITE(PLANE_SIZE(pipe, plane), plane_size);
  	I915_WRITE(PLANE_CTL(pipe, plane), plane_ctl);
  	I915_WRITE(PLANE_SURF(pipe, plane), surf_addr);
  	POSTING_READ(PLANE_SURF(pipe, plane));
@@ -1310,16 +1341,7 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
  		goto out;
  	}
 
-	if (!dev->mode_config.rotation_property)
-		dev->mode_config.rotation_property =
-			drm_mode_create_rotation_property(dev,
-							  BIT(DRM_ROTATE_0) |
-							  BIT(DRM_ROTATE_180));
-
-	if (dev->mode_config.rotation_property)
-		drm_object_attach_property(&intel_plane->base.base,
-					   dev->mode_config.rotation_property,
-					   state->base.rotation);
+	intel_create_rotation_property(dev, intel_plane);
 
  	drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
 
Quoted 8 lines
Quoted 7 lines

--
1.7.10.4

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

Tested-by on v1 2/2
#29 lore raw

Re: [PATCH 2/2] drm/i915/skl: Support for 90/270 rotation

In reply to Sonika Jindal

Task id: 6170 -------------------------------------Summary-------------------------------------
Platform Delta drm-intel-nightly Series Applied

PNV                                  270/270              270/270
ILK                                  303/303              303/303
SNB                 -21              304/304              283/304
IVB                                  337/337              337/337
BYT                 -1              287/287              286/287
HSW                                  361/361              361/361
BDW                                  309/309              309/309
-------------------------------------Detailed-------------------------------------
Platform  Test                                drm-intel-nightly          Series Applied
 SNB  igt@kms_cursor_crc@cursor-size-change      NSPT(2)PASS(1)      NSPT(2)
 SNB  igt@kms_mmio_vs_cs_flip@setcrtc_vs_cs_flip      NSPT(2)PASS(1)      NSPT(2)
 SNB  igt@kms_mmio_vs_cs_flip@setplane_vs_cs_flip      NSPT(2)PASS(1)      NSPT(2)
 SNB  igt@kms_rotation_crc@primary-rotation      NSPT(2)PASS(1)      NSPT(2)
 SNB  igt@kms_rotation_crc@sprite-rotation      NSPT(2)PASS(3)      NSPT(2)
 SNB  igt@pm_rpm@cursor      NSPT(2)PASS(1)      NSPT(2)
 SNB  igt@pm_rpm@cursor-dpms      NSPT(2)PASS(1)      NSPT(2)
 SNB  igt@pm_rpm@dpms-mode-unset-non-lpsp      NSPT(2)PASS(1)      NSPT(2)
 SNB  igt@pm_rpm@dpms-non-lpsp      NSPT(1)PASS(1)      NSPT(2)
 SNB  igt@pm_rpm@drm-resources-equal      NSPT(1)PASS(1)      NSPT(2)
 SNB  igt@pm_rpm@fences      NSPT(1)PASS(1)      NSPT(2)
 SNB  igt@pm_rpm@fences-dpms      NSPT(1)PASS(1)      NSPT(2)
 SNB  igt@pm_rpm@gem-execbuf      NSPT(1)PASS(1)      NSPT(2)
 SNB  igt@pm_rpm@gem-mmap-cpu      NSPT(1)PASS(1)      NSPT(2)
 SNB  igt@pm_rpm@gem-mmap-gtt      NSPT(1)PASS(1)      NSPT(2)
 SNB  igt@pm_rpm@gem-pread      NSPT(1)PASS(1)      NSPT(2)
 SNB  igt@pm_rpm@i2c      NSPT(1)PASS(1)      NSPT(2)
 SNB  igt@pm_rpm@modeset-non-lpsp      NSPT(1)PASS(1)      NSPT(2)
 SNB  igt@pm_rpm@modeset-non-lpsp-stress-no-wait      NSPT(1)PASS(1)      NSPT(2)
 SNB  igt@pm_rpm@pci-d3-state      NSPT(1)PASS(1)      NSPT(2)
 SNB  igt@pm_rpm@rte      NSPT(1)PASS(1)      NSPT(2)
*BYT  igt@gem_exec_bad_domains@conflicting-write-domain      PASS(2)      FAIL(1)PASS(1)

Note: You need to pay more attention to line start with '*'
_______________________________________________
Intel-gfx mailing list [email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

#30 lore raw
In reply to Sonika Jindal
Quoted 24 lines · Sonika Jindal
---
  drivers/gpu/drm/i915/intel_display.c |    7 ++++++-
  1 file changed, 6 insertions(+), 1 deletion(-)
drivers/gpu/drm/i915/intel_display.c +4 -0
index ceb2e61..f0bbc22 100644
@@ -12150,16 +12150,21 @@ intel_check_primary_plane(struct drm_plane *plane,
  	struct drm_rect *dest = &state->dst;
  	struct drm_rect *src = &state->src;
  	const struct drm_rect *clip = &state->clip;
+	bool can_position = false;
  	int ret;
 
  	crtc = crtc ? crtc : plane->crtc;
  	intel_crtc = to_intel_crtc(crtc);
 
+	if (INTEL_INFO(dev)->gen >= 9)
+		can_position = true;
+

drivers/gpu/drm/i915/intel_display.c intel_check_primary_plane(struct drm_plane *plane, · line 12170

Quoted 10 lines
drivers/gpu/drm/i915/intel_display.c +2 -1
  	ret = drm_plane_helper_check_update(plane, crtc, fb,
  					    src, dest, clip,
  					    DRM_PLANE_HELPER_NO_SCALING,
  					    DRM_PLANE_HELPER_NO_SCALING,
-					    false, true, &state->visible);
+					    can_position, true,
+					    &state->visible);
  	if (ret)
  		return ret;
 

I have discovered today that, while this allows SetCrtc and SetPlane ioctls to work with frame buffers which do not cover the plane, page flips are not that lucky and fail roughly with:

[drm:drm_crtc_check_viewport] Invalid fb size 1080x1080 for CRTC viewport 1920x1080+0+0.

I have posted a quick IGT exerciser for this as "kms_rotation_crc: Excercise page flips with 90 degree rotation". May not be that great but shows the failure.

I am not that hot on meddling with this code, nor do I feel competent to even try on my own at least. :/ Maybe just because the atomic and plane related rewrites have been going on for so long, and have multiple people involved, it all sounds pretty scary and fragile.

But I think some sort of plan on how to fix this could be in order?

Regards,

Tvrtko
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

#31 lore raw
Quoted 41 lines · Tvrtko Ursulin
Quoted 24 lines · Sonika Jindal
---
 drivers/gpu/drm/i915/intel_display.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
drivers/gpu/drm/i915/intel_display.c +4 -0
index ceb2e61..f0bbc22 100644
@@ -12150,16 +12150,21 @@ intel_check_primary_plane(struct drm_plane *plane,
 	struct drm_rect *dest = &state->dst;
 	struct drm_rect *src = &state->src;
 	const struct drm_rect *clip = &state->clip;
+	bool can_position = false;
 	int ret;
 
 	crtc = crtc ? crtc : plane->crtc;
 	intel_crtc = to_intel_crtc(crtc);
 
+	if (INTEL_INFO(dev)->gen >= 9)
+		can_position = true;
+

drivers/gpu/drm/i915/intel_display.c intel_check_primary_plane(struct drm_plane *plane, · line 12170

Quoted 10 lines
drivers/gpu/drm/i915/intel_display.c +2 -1
 	ret = drm_plane_helper_check_update(plane, crtc, fb,
 					    src, dest, clip,
 					    DRM_PLANE_HELPER_NO_SCALING,
 					    DRM_PLANE_HELPER_NO_SCALING,
-					    false, true, &state->visible);
+					    can_position, true,
+					    &state->visible);
 	if (ret)
 		return ret;
 

I have discovered today that, while this allows SetCrtc and SetPlane ioctls to work with frame buffers which do not cover the plane, page flips are not that lucky and fail roughly with:

Quoted 2 lines

[drm:drm_crtc_check_viewport] Invalid fb size 1080x1080 for CRTC viewport 1920x1080+0+0.

Maybe I'm misunderstanding your explanation, but a framebuffer is always required to fill/cover the plane scanning out of it. What this patch is supposed to be allowing is for the primary plane to not cover the entire CRTC (since that's something that only became possible for Intel hardware on the gen9+ platforms). I.e., the primary plane is now allowed to positioned and resized to cover a subset of the CRTC area, just like "sprite" planes have always been able to.

If you've got a 1080x1080 framebuffer, then it's legal to have a 1080x1080 primary plane while running in 1920x1080 mode on SKL/BXT. However it is not legal to size the primary plane as 1920x1080 and use this same 1080x1080 framebuffer with any of our interfaces (setplane, setcrtc, pageflip, or atomic).

Are you using ioctls/libdrm directly or are you using igt_kms helpers? IIRC, the IGT helpers will try to be extra helpful and automatically size the plane to match the framebuffer (unless you override that behavior), so that might be what's causing the confusion here.

Matt

Quoted 16 lines

I have posted a quick IGT exerciser for this as "kms_rotation_crc:
Excercise page flips with 90 degree rotation". May not be that great but shows the failure.

I am not that hot on meddling with this code, nor do I feel competent to even try on my own at least. :/ Maybe just because the atomic and plane related rewrites have been going on for so long, and have multiple people involved, it all sounds pretty scary and fragile.

But I think some sort of plan on how to fix this could be in order?

Regards,

Tvrtko

Signature · 9 lines
Matt Roper
Graphics Software Engineer
IoTG Platform Enabling & Development
Intel Corporation
(916) 356-2795
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#32 lore raw
Quoted 59 lines · Matt Roper
Quoted 41 lines · Tvrtko Ursulin
Quoted 24 lines · Sonika Jindal
---
 drivers/gpu/drm/i915/intel_display.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
drivers/gpu/drm/i915/intel_display.c +4 -0
index ceb2e61..f0bbc22 100644
@@ -12150,16 +12150,21 @@ intel_check_primary_plane(struct drm_plane *plane,
 	struct drm_rect *dest = &state->dst;
 	struct drm_rect *src = &state->src;
 	const struct drm_rect *clip = &state->clip;
+	bool can_position = false;
 	int ret;
 
 	crtc = crtc ? crtc : plane->crtc;
 	intel_crtc = to_intel_crtc(crtc);
 
+	if (INTEL_INFO(dev)->gen >= 9)
+		can_position = true;
+

drivers/gpu/drm/i915/intel_display.c intel_check_primary_plane(struct drm_plane *plane, · line 12170

Quoted 10 lines
drivers/gpu/drm/i915/intel_display.c +2 -1
 	ret = drm_plane_helper_check_update(plane, crtc, fb,
 					    src, dest, clip,
 					    DRM_PLANE_HELPER_NO_SCALING,
 					    DRM_PLANE_HELPER_NO_SCALING,
-					    false, true, &state->visible);
+					    can_position, true,
+					    &state->visible);
 	if (ret)
 		return ret;
 

I have discovered today that, while this allows SetCrtc and SetPlane ioctls to work with frame buffers which do not cover the plane, page flips are not that lucky and fail roughly with:

Quoted 2 lines

[drm:drm_crtc_check_viewport] Invalid fb size 1080x1080 for CRTC viewport 1920x1080+0+0.

Maybe I'm misunderstanding your explanation, but a framebuffer is always required to fill/cover the plane scanning out of it. What this patch is supposed to be allowing is for the primary plane to not cover the entire CRTC (since that's something that only became possible for Intel hardware on the gen9+ platforms). I.e., the primary plane is now allowed to positioned and resized to cover a subset of the CRTC area, just like "sprite" planes have always been able to.

If you've got a 1080x1080 framebuffer, then it's legal to have a 1080x1080 primary plane while running in 1920x1080 mode on SKL/BXT. However it is not legal to size the primary plane as 1920x1080 and use this same 1080x1080 framebuffer with any of our interfaces (setplane, setcrtc, pageflip, or atomic).

Quoted 4 lines

Are you using ioctls/libdrm directly or are you using igt_kms helpers? IIRC, the IGT helpers will try to be extra helpful and automatically size the plane to match the framebuffer (unless you override that behavior), so that might be what's causing the confusion here.

The problem is clear as day in drm_mode_page_flip_ioctl():
ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); if (ret)

	goto out;

The fix should be easy; just extract the current src coordinates from the plane state and check those against the new fb size. And then hope that the plane state is really up to date.

And I'm sure rotated cases will go boom in some other ways. Probably we should just switch over to using the full plane update for mmio flips to fix it.

Quoted 27 lines

Matt

Quoted 16 lines

I have posted a quick IGT exerciser for this as "kms_rotation_crc:
Excercise page flips with 90 degree rotation". May not be that great but shows the failure.

I am not that hot on meddling with this code, nor do I feel competent to even try on my own at least. :/ Maybe just because the atomic and plane related rewrites have been going on for so long, and have multiple people involved, it all sounds pretty scary and fragile.

But I think some sort of plan on how to fix this could be in order?

Regards,

Tvrtko

Signature · 5 lines
Matt Roper
Graphics Software Engineer
IoTG Platform Enabling & Development
Intel Corporation
(916) 356-2795
Signature · 6 lines
Ville Syrjälä
Intel OTC
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#33 lore raw
Quoted 65 lines · Ville Syrjälä
Quoted 59 lines · Matt Roper
Quoted 41 lines · Tvrtko Ursulin
Quoted 24 lines · Sonika Jindal
---
 drivers/gpu/drm/i915/intel_display.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
drivers/gpu/drm/i915/intel_display.c +4 -0
index ceb2e61..f0bbc22 100644
@@ -12150,16 +12150,21 @@ intel_check_primary_plane(struct drm_plane *plane,
 	struct drm_rect *dest = &state->dst;
 	struct drm_rect *src = &state->src;
 	const struct drm_rect *clip = &state->clip;
+	bool can_position = false;
 	int ret;
 
 	crtc = crtc ? crtc : plane->crtc;
 	intel_crtc = to_intel_crtc(crtc);
 
+	if (INTEL_INFO(dev)->gen >= 9)
+		can_position = true;
+

drivers/gpu/drm/i915/intel_display.c intel_check_primary_plane(struct drm_plane *plane, · line 12170

Quoted 10 lines
drivers/gpu/drm/i915/intel_display.c +2 -1
 	ret = drm_plane_helper_check_update(plane, crtc, fb,
 					    src, dest, clip,
 					    DRM_PLANE_HELPER_NO_SCALING,
 					    DRM_PLANE_HELPER_NO_SCALING,
-					    false, true, &state->visible);
+					    can_position, true,
+					    &state->visible);
 	if (ret)
 		return ret;
 

I have discovered today that, while this allows SetCrtc and SetPlane ioctls to work with frame buffers which do not cover the plane, page flips are not that lucky and fail roughly with:

Quoted 2 lines

[drm:drm_crtc_check_viewport] Invalid fb size 1080x1080 for CRTC viewport 1920x1080+0+0.

Maybe I'm misunderstanding your explanation, but a framebuffer is always required to fill/cover the plane scanning out of it. What this patch is supposed to be allowing is for the primary plane to not cover the entire CRTC (since that's something that only became possible for Intel hardware on the gen9+ platforms). I.e., the primary plane is now allowed to positioned and resized to cover a subset of the CRTC area, just like "sprite" planes have always been able to.

If you've got a 1080x1080 framebuffer, then it's legal to have a 1080x1080 primary plane while running in 1920x1080 mode on SKL/BXT. However it is not legal to size the primary plane as 1920x1080 and use this same 1080x1080 framebuffer with any of our interfaces (setplane, setcrtc, pageflip, or atomic).

Quoted 4 lines

Are you using ioctls/libdrm directly or are you using igt_kms helpers? IIRC, the IGT helpers will try to be extra helpful and automatically size the plane to match the framebuffer (unless you override that behavior), so that might be what's causing the confusion here.

Quoted 8 lines

The problem is clear as day in drm_mode_page_flip_ioctl():
ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); if (ret)

	goto out;

The fix should be easy; just extract the current src coordinates from the plane state and check those against the new fb size. And then hope that the plane state is really up to date.

Yep, that's the conclusion we came to once Tvrtko explained what he was seeing on IRC. I'm not sure whether non-atomic drivers have enough state setup by the default helpers to work properly. Worst case we'll just assume that a non-atomic driver won't support primary plane windowing (since none have in the past) and fall back to looking at the mode for legacy non-atomic drivers.

Quoted 4 lines

And I'm sure rotated cases will go boom in some other ways. Probably we should just switch over to using the full plane update for mmio flips to fix it.

Yeah; the core looks at a drm_plane->invert_dimensions field that's only set by omap. That should probably be updated to look at the state's rotation on atomic-capable drivers.

Matt

Quoted 32 lines
Quoted 28 lines

Matt

Quoted 16 lines

I have posted a quick IGT exerciser for this as "kms_rotation_crc:
Excercise page flips with 90 degree rotation". May not be that great but shows the failure.

I am not that hot on meddling with this code, nor do I feel competent to even try on my own at least. :/ Maybe just because the atomic and plane related rewrites have been going on for so long, and have multiple people involved, it all sounds pretty scary and fragile.

But I think some sort of plan on how to fix this could be in order?

Regards,

Tvrtko

Signature · 5 lines
Matt Roper
Graphics Software Engineer
IoTG Platform Enabling & Development
Intel Corporation
(916) 356-2795
Signature · 2 lines
Ville Syrjälä
Intel OTC
Signature · 9 lines
Matt Roper
Graphics Software Engineer
IoTG Platform Enabling & Development
Intel Corporation
(916) 356-2795
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#34 lore raw
Quoted 83 lines · Matt Roper
Quoted 65 lines · Ville Syrjälä
Quoted 59 lines · Matt Roper
Quoted 41 lines · Tvrtko Ursulin
Quoted 24 lines · Sonika Jindal
---
 drivers/gpu/drm/i915/intel_display.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
drivers/gpu/drm/i915/intel_display.c +4 -0
index ceb2e61..f0bbc22 100644
@@ -12150,16 +12150,21 @@ intel_check_primary_plane(struct drm_plane *plane,
 	struct drm_rect *dest = &state->dst;
 	struct drm_rect *src = &state->src;
 	const struct drm_rect *clip = &state->clip;
+	bool can_position = false;
 	int ret;
 
 	crtc = crtc ? crtc : plane->crtc;
 	intel_crtc = to_intel_crtc(crtc);
 
+	if (INTEL_INFO(dev)->gen >= 9)
+		can_position = true;
+

drivers/gpu/drm/i915/intel_display.c intel_check_primary_plane(struct drm_plane *plane, · line 12170

Quoted 10 lines
drivers/gpu/drm/i915/intel_display.c +2 -1
 	ret = drm_plane_helper_check_update(plane, crtc, fb,
 					    src, dest, clip,
 					    DRM_PLANE_HELPER_NO_SCALING,
 					    DRM_PLANE_HELPER_NO_SCALING,
-					    false, true, &state->visible);
+					    can_position, true,
+					    &state->visible);
 	if (ret)
 		return ret;
 

I have discovered today that, while this allows SetCrtc and SetPlane ioctls to work with frame buffers which do not cover the plane, page flips are not that lucky and fail roughly with:

Quoted 2 lines

[drm:drm_crtc_check_viewport] Invalid fb size 1080x1080 for CRTC viewport 1920x1080+0+0.

Maybe I'm misunderstanding your explanation, but a framebuffer is always required to fill/cover the plane scanning out of it. What this patch is supposed to be allowing is for the primary plane to not cover the entire CRTC (since that's something that only became possible for Intel hardware on the gen9+ platforms). I.e., the primary plane is now allowed to positioned and resized to cover a subset of the CRTC area, just like "sprite" planes have always been able to.

If you've got a 1080x1080 framebuffer, then it's legal to have a 1080x1080 primary plane while running in 1920x1080 mode on SKL/BXT. However it is not legal to size the primary plane as 1920x1080 and use this same 1080x1080 framebuffer with any of our interfaces (setplane, setcrtc, pageflip, or atomic).

Quoted 4 lines

Are you using ioctls/libdrm directly or are you using igt_kms helpers? IIRC, the IGT helpers will try to be extra helpful and automatically size the plane to match the framebuffer (unless you override that behavior), so that might be what's causing the confusion here.

Quoted 8 lines

The problem is clear as day in drm_mode_page_flip_ioctl():
ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); if (ret)

	goto out;

The fix should be easy; just extract the current src coordinates from the plane state and check those against the new fb size. And then hope that the plane state is really up to date.

Yep, that's the conclusion we came to once Tvrtko explained what he was seeing on IRC. I'm not sure whether non-atomic drivers have enough state setup by the default helpers to work properly. Worst case we'll just assume that a non-atomic driver won't support primary plane windowing (since none have in the past) and fall back to looking at the mode for legacy non-atomic drivers.

Quoted 1 line
Quoted 7 lines
Quoted 3 lines

And I'm sure rotated cases will go boom in some other ways. Probably we should just switch over to using the full plane update for mmio flips to fix it.

Yeah; the core looks at a drm_plane->invert_dimensions field that's only set by omap. That should probably be updated to look at the state's rotation on atomic-capable drivers.

We can just look at the src coordinates. Those always match the fb orientation.

Quoted 43 lines

Matt

Quoted 32 lines
Quoted 28 lines

Matt

Quoted 16 lines

I have posted a quick IGT exerciser for this as "kms_rotation_crc:
Excercise page flips with 90 degree rotation". May not be that great but shows the failure.

I am not that hot on meddling with this code, nor do I feel competent to even try on my own at least. :/ Maybe just because the atomic and plane related rewrites have been going on for so long, and have multiple people involved, it all sounds pretty scary and fragile.

But I think some sort of plan on how to fix this could be in order?

Regards,

Tvrtko

Signature · 5 lines
Matt Roper
Graphics Software Engineer
IoTG Platform Enabling & Development
Intel Corporation
(916) 356-2795
Signature · 2 lines
Ville Syrjälä
Intel OTC
Signature · 5 lines
Matt Roper
Graphics Software Engineer
IoTG Platform Enabling & Development
Intel Corporation
(916) 356-2795
Signature · 6 lines
Ville Syrjälä
Intel OTC
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#35 lore raw
Quoted 88 lines · Ville Syrjälä
Quoted 87 lines · Matt Roper
Quoted 65 lines · Ville Syrjälä
Quoted 59 lines · Matt Roper
Quoted 41 lines · Tvrtko Ursulin
Quoted 24 lines · Sonika Jindal
---
 drivers/gpu/drm/i915/intel_display.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
drivers/gpu/drm/i915/intel_display.c +4 -0
index ceb2e61..f0bbc22 100644
@@ -12150,16 +12150,21 @@ intel_check_primary_plane(struct drm_plane *plane,
 	struct drm_rect *dest = &state->dst;
 	struct drm_rect *src = &state->src;
 	const struct drm_rect *clip = &state->clip;
+	bool can_position = false;
 	int ret;
 
 	crtc = crtc ? crtc : plane->crtc;
 	intel_crtc = to_intel_crtc(crtc);
 
+	if (INTEL_INFO(dev)->gen >= 9)
+		can_position = true;
+

drivers/gpu/drm/i915/intel_display.c intel_check_primary_plane(struct drm_plane *plane, · line 12170

Quoted 10 lines
drivers/gpu/drm/i915/intel_display.c +2 -1
 	ret = drm_plane_helper_check_update(plane, crtc, fb,
 					    src, dest, clip,
 					    DRM_PLANE_HELPER_NO_SCALING,
 					    DRM_PLANE_HELPER_NO_SCALING,
-					    false, true, &state->visible);
+					    can_position, true,
+					    &state->visible);
 	if (ret)
 		return ret;
 

I have discovered today that, while this allows SetCrtc and SetPlane ioctls to work with frame buffers which do not cover the plane, page flips are not that lucky and fail roughly with:

Quoted 2 lines

[drm:drm_crtc_check_viewport] Invalid fb size 1080x1080 for CRTC viewport 1920x1080+0+0.

Maybe I'm misunderstanding your explanation, but a framebuffer is always required to fill/cover the plane scanning out of it. What this patch is supposed to be allowing is for the primary plane to not cover the entire CRTC (since that's something that only became possible for Intel hardware on the gen9+ platforms). I.e., the primary plane is now allowed to positioned and resized to cover a subset of the CRTC area, just like "sprite" planes have always been able to.

If you've got a 1080x1080 framebuffer, then it's legal to have a 1080x1080 primary plane while running in 1920x1080 mode on SKL/BXT. However it is not legal to size the primary plane as 1920x1080 and use this same 1080x1080 framebuffer with any of our interfaces (setplane, setcrtc, pageflip, or atomic).

Quoted 4 lines

Are you using ioctls/libdrm directly or are you using igt_kms helpers? IIRC, the IGT helpers will try to be extra helpful and automatically size the plane to match the framebuffer (unless you override that behavior), so that might be what's causing the confusion here.

Quoted 8 lines

The problem is clear as day in drm_mode_page_flip_ioctl():
ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); if (ret)

	goto out;

The fix should be easy; just extract the current src coordinates from the plane state and check those against the new fb size. And then hope that the plane state is really up to date.

Yep, that's the conclusion we came to once Tvrtko explained what he was seeing on IRC. I'm not sure whether non-atomic drivers have enough state setup by the default helpers to work properly. Worst case we'll just assume that a non-atomic driver won't support primary plane windowing (since none have in the past) and fall back to looking at the mode for legacy non-atomic drivers.

Quoted 4 lines

And I'm sure rotated cases will go boom in some other ways. Probably we should just switch over to using the full plane update for mmio flips to fix it.

Quoted 6 lines
Quoted 3 lines

Yeah; the core looks at a drm_plane->invert_dimensions field that's only set by omap. That should probably be updated to look at the state's rotation on atomic-capable drivers.

We can just look at the src coordinates. Those always match the fb orientation.

Can we just not bother with legacy pageflips on rotated planes? setplane works and once you rotate it kinda gets nasty anyway.

The problem I see is that with legacy pageflip we also need to hack up something that doesn't look at plane->state for legacy and all that for a grand total of about 2 drivers, both getting converted to atomic. -Daniel

Quoted 48 lines
Quoted 44 lines

Matt

Quoted 32 lines
Quoted 28 lines

Matt

Quoted 16 lines

I have posted a quick IGT exerciser for this as "kms_rotation_crc:
Excercise page flips with 90 degree rotation". May not be that great but shows the failure.

I am not that hot on meddling with this code, nor do I feel competent to even try on my own at least. :/ Maybe just because the atomic and plane related rewrites have been going on for so long, and have multiple people involved, it all sounds pretty scary and fragile.

But I think some sort of plan on how to fix this could be in order?

Regards,

Tvrtko

Signature · 5 lines
Matt Roper
Graphics Software Engineer
IoTG Platform Enabling & Development
Intel Corporation
(916) 356-2795
Signature · 2 lines
Ville Syrjälä
Intel OTC
Signature · 5 lines
Matt Roper
Graphics Software Engineer
IoTG Platform Enabling & Development
Intel Corporation
(916) 356-2795
Signature · 2 lines
Ville Syrjälä
Intel OTC
Signature · 7 lines
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
#36 lore raw
Quoted 93 lines · Daniel Vetter
Quoted 92 lines · Ville Syrjälä
Quoted 90 lines · Matt Roper
Quoted 65 lines · Ville Syrjälä
Quoted 59 lines · Matt Roper
Quoted 41 lines · Tvrtko Ursulin
Quoted 24 lines · Sonika Jindal
---
  drivers/gpu/drm/i915/intel_display.c |    7 ++++++-
  1 file changed, 6 insertions(+), 1 deletion(-)
drivers/gpu/drm/i915/intel_display.c +4 -0
index ceb2e61..f0bbc22 100644
@@ -12150,16 +12150,21 @@ intel_check_primary_plane(struct drm_plane *plane,
  	struct drm_rect *dest = &state->dst;
  	struct drm_rect *src = &state->src;
  	const struct drm_rect *clip = &state->clip;
+	bool can_position = false;
  	int ret;
 
  	crtc = crtc ? crtc : plane->crtc;
  	intel_crtc = to_intel_crtc(crtc);
 
+	if (INTEL_INFO(dev)->gen >= 9)
+		can_position = true;
+

drivers/gpu/drm/i915/intel_display.c intel_check_primary_plane(struct drm_plane *plane, · line 12170

Quoted 10 lines
drivers/gpu/drm/i915/intel_display.c +2 -1
  	ret = drm_plane_helper_check_update(plane, crtc, fb,
  					    src, dest, clip,
  					    DRM_PLANE_HELPER_NO_SCALING,
  					    DRM_PLANE_HELPER_NO_SCALING,
-					    false, true, &state->visible);
+					    can_position, true,
+					    &state->visible);
  	if (ret)
  		return ret;
 

I have discovered today that, while this allows SetCrtc and SetPlane ioctls to work with frame buffers which do not cover the plane, page flips are not that lucky and fail roughly with:

Quoted 2 lines

[drm:drm_crtc_check_viewport] Invalid fb size 1080x1080 for CRTC viewport 1920x1080+0+0.

Maybe I'm misunderstanding your explanation, but a framebuffer is always required to fill/cover the plane scanning out of it. What this patch is supposed to be allowing is for the primary plane to not cover the entire CRTC (since that's something that only became possible for Intel hardware on the gen9+ platforms). I.e., the primary plane is now allowed to positioned and resized to cover a subset of the CRTC area, just like "sprite" planes have always been able to.

If you've got a 1080x1080 framebuffer, then it's legal to have a 1080x1080 primary plane while running in 1920x1080 mode on SKL/BXT. However it is not legal to size the primary plane as 1920x1080 and use this same 1080x1080 framebuffer with any of our interfaces (setplane, setcrtc, pageflip, or atomic).

Quoted 4 lines

Are you using ioctls/libdrm directly or are you using igt_kms helpers? IIRC, the IGT helpers will try to be extra helpful and automatically size the plane to match the framebuffer (unless you override that behavior), so that might be what's causing the confusion here.

Quoted 8 lines

The problem is clear as day in drm_mode_page_flip_ioctl():
ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); if (ret)

	goto out;

The fix should be easy; just extract the current src coordinates from the plane state and check those against the new fb size. And then hope that the plane state is really up to date.

Yep, that's the conclusion we came to once Tvrtko explained what he was seeing on IRC. I'm not sure whether non-atomic drivers have enough state setup by the default helpers to work properly. Worst case we'll just assume that a non-atomic driver won't support primary plane windowing (since none have in the past) and fall back to looking at the mode for legacy non-atomic drivers.

Quoted 4 lines

And I'm sure rotated cases will go boom in some other ways. Probably we should just switch over to using the full plane update for mmio flips to fix it.

Yeah; the core looks at a drm_plane->invert_dimensions field that's only set by omap. That should probably be updated to look at the state's rotation on atomic-capable drivers.

Quoted 5 lines
Quoted 2 lines

We can just look at the src coordinates. Those always match the fb orientation.

Can we just not bother with legacy pageflips on rotated planes? setplane works and once you rotate it kinda gets nasty anyway.

I don't know - thought it is simple enough to make it work so why not? Just " [PATCH] drm/i915: Consider plane rotation when calculating stride in skl_do_mmio_flip" I posted, plus Matt's "[PATCH] drm: Check fb against plane size rather than CRTC mode for pageflip​" to allow smaller than mode planes.

Quoted 3 lines

The problem I see is that with legacy pageflip we also need to hack up something that doesn't look at plane->state for legacy and all that for a grand total of about 2 drivers, both getting converted to atomic.

I'll leave the legacy/atomic/etc considerations to the experts. :)

Regards,

Tvrtko

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx

#37 lore raw
Quoted 115 lines · Tvrtko Ursulin
Quoted 102 lines · Daniel Vetter
Quoted 101 lines · Ville Syrjälä
Quoted 99 lines · Matt Roper
Quoted 76 lines · Ville Syrjälä
Quoted 65 lines · Matt Roper
Quoted 43 lines · Tvrtko Ursulin
Quoted 26 lines · Sonika Jindal
---
  drivers/gpu/drm/i915/intel_display.c |    7 ++++++-
  1 file changed, 6 insertions(+), 1 deletion(-)
drivers/gpu/drm/i915/intel_display.c +3 -0
index ceb2e61..f0bbc22 100644
@@ -12150,16 +12150,21 @@ intel_check_primary_plane(struct
 drm_plane *plane,
      struct drm_rect *dest = &state->dst;
      struct drm_rect *src = &state->src;
      const struct drm_rect *clip = &state->clip;
+    bool can_position = false;
      int ret;
 
      crtc = crtc ? crtc : plane->crtc;
      intel_crtc = to_intel_crtc(crtc);
 
+    if (INTEL_INFO(dev)->gen >= 9)
+        can_position = true;

drivers/gpu/drm/i915/intel_display.c intel_check_primary_plane(struct · line 12170

Quoted 10 lines
drivers/gpu/drm/i915/intel_display.c +3 -1
+
      ret = drm_plane_helper_check_update(plane, crtc, fb,
                          src, dest, clip,
                          DRM_PLANE_HELPER_NO_SCALING,
                          DRM_PLANE_HELPER_NO_SCALING,
-                        false, true, &state->visible);
+                        can_position, true,
+                        &state->visible);
      if (ret)
          return ret;

I have discovered today that, while this allows SetCrtc and SetPlane ioctls to work with frame buffers which do not cover the plane, page flips are not that lucky and fail roughly with:

Quoted 2 lines

[drm:drm_crtc_check_viewport] Invalid fb size 1080x1080 for CRTC viewport 1920x1080+0+0.

Maybe I'm misunderstanding your explanation, but a framebuffer is always
required to fill/cover the plane scanning out of it. What this patch is
supposed to be allowing is for the primary plane to not cover the entire
CRTC (since that's something that only became possible for Intel hardware on the gen9+ platforms). I.e., the primary plane is now allowed to positioned and resized to cover a subset of the CRTC area, just like "sprite" planes have always been able to.

If you've got a 1080x1080 framebuffer, then it's legal to have a 1080x1080 primary plane while running in 1920x1080 mode on SKL/BXT. However it is not legal to size the primary plane as 1920x1080 and use
this same 1080x1080 framebuffer with any of our interfaces (setplane, setcrtc, pageflip, or atomic).

Quoted 5 lines

Are you using ioctls/libdrm directly or are you using igt_kms helpers?
IIRC, the IGT helpers will try to be extra helpful and automatically size the plane to match the framebuffer (unless you override that behavior), so that might be what's causing the confusion here.

The problem is clear as day in drm_mode_page_flip_ioctl():
ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb);
if (ret)

Quoted 5 lines
    goto out;

The fix should be easy; just extract the current src coordinates from the plane state and check those against the new fb size. And then hope that the plane state is really up to date.

Yep, that's the conclusion we came to once Tvrtko explained what he was seeing on IRC. I'm not sure whether non-atomic drivers have enough state setup by the default helpers to work properly. Worst case we'll just assume that a non-atomic driver won't support primary plane windowing (since none have in the past) and fall back to looking at the mode for legacy non-atomic drivers.

Quoted 4 lines

And I'm sure rotated cases will go boom in some other ways. Probably we should just switch over to using the full plane update for mmio flips to fix it.

Yeah; the core looks at a drm_plane->invert_dimensions field that's only
set by omap. That should probably be updated to look at the state's rotation on atomic-capable drivers.

Quoted 5 lines
Quoted 2 lines

We can just look at the src coordinates. Those always match the fb orientation.

Can we just not bother with legacy pageflips on rotated planes? setplane works and once you rotate it kinda gets nasty anyway.

I don't know - thought it is simple enough to make it work so why not? Just " [PATCH] drm/i915: Consider plane rotation when calculating stride in skl_do_mmio_flip" I posted, plus Matt's "[PATCH] drm: Check fb against plane size rather than CRTC mode for pageflip​" to allow smaller than mode planes.

Quoted 5 lines
Quoted 3 lines

The problem I see is that with legacy pageflip we also need to hack up something that doesn't look at plane->state for legacy and all that for a grand total of about 2 drivers, both getting converted to atomic.

I'll leave the legacy/atomic/etc considerations to the experts. :)

Are we sure any efforts to support rotation in legacy page flips is not worth it?

So far there were three patches for this: Plane programming fix (very simple) and an IGT test case (simple as well) from me, and a sub-crtc size plane support from Matt.

It kind of remained hanging a bit so I think it would be good to make a definitive decision.

Regards,

Tvrtko

_______________________________________________
Intel-gfx mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/intel-gfx