diff mbox

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

Message ID 1427704497-28344-2-git-send-email-sonika.jindal@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

sonika.jindal@intel.com March 30, 2015, 8:34 a.m. UTC
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)

Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
---
 drivers/gpu/drm/i915/i915_reg.h      |    2 +
 drivers/gpu/drm/i915/intel_display.c |  103 +++++++++++++++++++++++++++-------
 drivers/gpu/drm/i915/intel_drv.h     |    6 ++
 drivers/gpu/drm/i915/intel_sprite.c  |   52 ++++++++++++-----
 4 files changed, 129 insertions(+), 34 deletions(-)

Comments

Shuang He March 30, 2015, 12:15 p.m. UTC | #1
Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he@intel.com)
Task id: 6091
-------------------------------------Summary-------------------------------------
Platform          Delta          drm-intel-nightly          Series Applied
PNV                 -4              270/270              266/270
ILK                                  303/303              303/303
SNB                 -1              304/304              303/304
IVB                                  337/337              337/337
BYT                                  287/287              287/287
HSW                                  361/361              361/361
BDW                                  309/309              309/309
-------------------------------------Detailed-------------------------------------
Platform  Test                                drm-intel-nightly          Series Applied
 PNV  igt@gem_userptr_blits@coherency-sync      CRASH(2)PASS(2)      CRASH(2)
*PNV  igt@gem_fence_thrash@bo-write-verify-threaded-none      PASS(2)      FAIL(1)PASS(1)
*PNV  igt@gem_fence_thrash@bo-write-verify-x      PASS(2)      FAIL(1)PASS(1)
*PNV  igt@gem_fence_thrash@bo-write-verify-y      PASS(2)      FAIL(1)PASS(1)
*SNB  igt@kms_rotation_crc@sprite-rotation      PASS(3)      FAIL(1)PASS(1)
Note: You need to pay more attention to line start with '*'
Matt Roper April 1, 2015, 6:22 p.m. UTC | #2
On Mon, Mar 30, 2015 at 02:04:57PM +0530, Sonika Jindal wrote:
> 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)
> 
> Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
> ---
>  drivers/gpu/drm/i915/i915_reg.h      |    2 +
>  drivers/gpu/drm/i915/intel_display.c |  103 +++++++++++++++++++++++++++-------
>  drivers/gpu/drm/i915/intel_drv.h     |    6 ++
>  drivers/gpu/drm/i915/intel_sprite.c  |   52 ++++++++++++-----
>  4 files changed, 129 insertions(+), 34 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index b522eb6..564bbd5 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -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
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index f0bbc22..86ee0f0 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -2318,6 +2318,28 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
>  		return -EINVAL;
>  	}
>  
> +	switch (fb->pixel_format) {
> +	case DRM_FORMAT_XRGB8888:
> +	case DRM_FORMAT_ARGB8888:
> +	case DRM_FORMAT_XBGR8888:
> +	case DRM_FORMAT_ABGR8888:
> +	case DRM_FORMAT_XRGB2101010:
> +	case DRM_FORMAT_ARGB2101010:
> +	case DRM_FORMAT_XBGR2101010:
> +	case DRM_FORMAT_ABGR2101010:
> +	case DRM_FORMAT_YUYV:
> +	case DRM_FORMAT_YVYU:
> +	case DRM_FORMAT_UYVY:
> +	case DRM_FORMAT_VYUY:
> +	case DRM_FORMAT_NV12:
> +		break;
> +
> +	default:
> +		DRM_DEBUG_KMS("Unsupported pixel format:%d for 90/270 rotation!\n",
> +		      fb->pixel_format);
> +		return -EINVAL;
> +	}

Shouldn't we be matching against the list of formats the plane supports
(which may vary by platform, or by specific plane) rather than this
generic list?  We already specified what formats the plane can handle at
plane init time, so it seems like what you'd really want is just a call
to

    drm_plane_check_pixel_format(plane_state->plane, fb->pixel_format)

then follow that up with explicit checks to exclude any formats that we
can handle in 0/180, but not in 90/270.

I'd also move this check to intel_plane_atomic_check(), since the
'check' code path is where I'd usually go looking for these types of
checks; the function you've got it in at the moment gets called from the
'prepare' step which works as well, but seems a bit less obvious.

> +
>  	return 0;
>  }
>  
> @@ -2919,8 +2941,12 @@ 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 +3007,51 @@ 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);

Minor nit; can we move this down inside the 'else' branch to make it
apparent how this serves a parallel role to 'tile_height' from the 'if'
branch.


> -	surf_addr = intel_plane_obj_offset(to_intel_plane(crtc->primary), obj);
> +	surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj);
> +
> +	if (rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))) {

Might as well use the intel_rotation_90_or_270() function since we have
it.  Same comment for the sprite path farther down.

> +		/* 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 +12462,32 @@ 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)
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index 811a1db..d32025a 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -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);
>  
> diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
> index f41e872..65eb147 100644
> --- a/drivers/gpu/drm/i915/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/intel_sprite.c
> @@ -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 (rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))) {
> +		/* 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
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
sonika.jindal@intel.com April 2, 2015, 4:54 a.m. UTC | #3
On 4/1/2015 11:52 PM, Matt Roper wrote:
> On Mon, Mar 30, 2015 at 02:04:57PM +0530, Sonika Jindal wrote:
>> 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)
>>
>> Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
>> ---
>>   drivers/gpu/drm/i915/i915_reg.h      |    2 +
>>   drivers/gpu/drm/i915/intel_display.c |  103 +++++++++++++++++++++++++++-------
>>   drivers/gpu/drm/i915/intel_drv.h     |    6 ++
>>   drivers/gpu/drm/i915/intel_sprite.c  |   52 ++++++++++++-----
>>   4 files changed, 129 insertions(+), 34 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
>> index b522eb6..564bbd5 100644
>> --- a/drivers/gpu/drm/i915/i915_reg.h
>> +++ b/drivers/gpu/drm/i915/i915_reg.h
>> @@ -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
>> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
>> index f0bbc22..86ee0f0 100644
>> --- a/drivers/gpu/drm/i915/intel_display.c
>> +++ b/drivers/gpu/drm/i915/intel_display.c
>> @@ -2318,6 +2318,28 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
>>   		return -EINVAL;
>>   	}
>>
>> +	switch (fb->pixel_format) {
>> +	case DRM_FORMAT_XRGB8888:
>> +	case DRM_FORMAT_ARGB8888:
>> +	case DRM_FORMAT_XBGR8888:
>> +	case DRM_FORMAT_ABGR8888:
>> +	case DRM_FORMAT_XRGB2101010:
>> +	case DRM_FORMAT_ARGB2101010:
>> +	case DRM_FORMAT_XBGR2101010:
>> +	case DRM_FORMAT_ABGR2101010:
>> +	case DRM_FORMAT_YUYV:
>> +	case DRM_FORMAT_YVYU:
>> +	case DRM_FORMAT_UYVY:
>> +	case DRM_FORMAT_VYUY:
>> +	case DRM_FORMAT_NV12:
>> +		break;
>> +
>> +	default:
>> +		DRM_DEBUG_KMS("Unsupported pixel format:%d for 90/270 rotation!\n",
>> +		      fb->pixel_format);
>> +		return -EINVAL;
>> +	}
>
> Shouldn't we be matching against the list of formats the plane supports
> (which may vary by platform, or by specific plane) rather than this
> generic list?  We already specified what formats the plane can handle at
> plane init time, so it seems like what you'd really want is just a call
> to
>
>      drm_plane_check_pixel_format(plane_state->plane, fb->pixel_format)
>
> then follow that up with explicit checks to exclude any formats that we
> can handle in 0/180, but not in 90/270.
>
I am not sure how it will help. drm_plane_check_pixel_format should be 
used to check the pixel format of the fb which we should be doing in 
some -check functions (I don't think we do that right now?) against what 
is supported by the plane.
But to check for the formats which are allowed for 90/270, we would need 
this kind of explicit check.

> I'd also move this check to intel_plane_atomic_check(), since the
> 'check' code path is where I'd usually go looking for these types of
> checks; the function you've got it in at the moment gets called from the
> 'prepare' step which works as well, but seems a bit less obvious.
>
Yes, I agree, but this is on top of Tvrtko's patch for secondary buffer 
mapping where based upon tiling and pixel format we are allowing the 
rotated gtt.

Tvrtko,
Can these be moved to the intel_plane_atomic_check()

>> +
>>   	return 0;
>>   }
>>
>> @@ -2919,8 +2941,12 @@ 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 +3007,51 @@ 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);
>
> Minor nit; can we move this down inside the 'else' branch to make it
> apparent how this serves a parallel role to 'tile_height' from the 'if'
> branch.
>
Yes sure.
>
>> -	surf_addr = intel_plane_obj_offset(to_intel_plane(crtc->primary), obj);
>> +	surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj);
>> +
>> +	if (rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))) {
>
> Might as well use the intel_rotation_90_or_270() function since we have
> it.  Same comment for the sprite path farther down.
>
Sure.

Regards,
Sonika
>> +		/* 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 +12462,32 @@ 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)
>> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
>> index 811a1db..d32025a 100644
>> --- a/drivers/gpu/drm/i915/intel_drv.h
>> +++ b/drivers/gpu/drm/i915/intel_drv.h
>> @@ -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);
>>
>> diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
>> index f41e872..65eb147 100644
>> --- a/drivers/gpu/drm/i915/intel_sprite.c
>> +++ b/drivers/gpu/drm/i915/intel_sprite.c
>> @@ -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 (rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))) {
>> +		/* 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
>>
>> _______________________________________________
>> Intel-gfx mailing list
>> Intel-gfx@lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
Tvrtko Ursulin April 2, 2015, 8:55 a.m. UTC | #4
Hi,

On 04/02/2015 05:54 AM, Jindal, Sonika wrote:
>>> diff --git a/drivers/gpu/drm/i915/intel_display.c
>>> b/drivers/gpu/drm/i915/intel_display.c
>>> index f0bbc22..86ee0f0 100644
>>> --- a/drivers/gpu/drm/i915/intel_display.c
>>> +++ b/drivers/gpu/drm/i915/intel_display.c
>>> @@ -2318,6 +2318,28 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view
>>> *view, struct drm_framebuffer *fb,
>>>           return -EINVAL;
>>>       }
>>>
>>> +    switch (fb->pixel_format) {
>>> +    case DRM_FORMAT_XRGB8888:
>>> +    case DRM_FORMAT_ARGB8888:
>>> +    case DRM_FORMAT_XBGR8888:
>>> +    case DRM_FORMAT_ABGR8888:
>>> +    case DRM_FORMAT_XRGB2101010:
>>> +    case DRM_FORMAT_ARGB2101010:
>>> +    case DRM_FORMAT_XBGR2101010:
>>> +    case DRM_FORMAT_ABGR2101010:
>>> +    case DRM_FORMAT_YUYV:
>>> +    case DRM_FORMAT_YVYU:
>>> +    case DRM_FORMAT_UYVY:
>>> +    case DRM_FORMAT_VYUY:
>>> +    case DRM_FORMAT_NV12:
>>> +        break;
>>> +
>>> +    default:
>>> +        DRM_DEBUG_KMS("Unsupported pixel format:%d for 90/270
>>> rotation!\n",
>>> +              fb->pixel_format);
>>> +        return -EINVAL;
>>> +    }
>>
>> Shouldn't we be matching against the list of formats the plane supports
>> (which may vary by platform, or by specific plane) rather than this
>> generic list?  We already specified what formats the plane can handle at
>> plane init time, so it seems like what you'd really want is just a call
>> to
>>
>>      drm_plane_check_pixel_format(plane_state->plane, fb->pixel_format)
>>
>> then follow that up with explicit checks to exclude any formats that we
>> can handle in 0/180, but not in 90/270.
>>
> I am not sure how it will help. drm_plane_check_pixel_format should be
> used to check the pixel format of the fb which we should be doing in
> some -check functions (I don't think we do that right now?) against what
> is supported by the plane.
> But to check for the formats which are allowed for 90/270, we would need
> this kind of explicit check.
>
>> I'd also move this check to intel_plane_atomic_check(), since the
>> 'check' code path is where I'd usually go looking for these types of
>> checks; the function you've got it in at the moment gets called from the
>> 'prepare' step which works as well, but seems a bit less obvious.
>>
> Yes, I agree, but this is on top of Tvrtko's patch for secondary buffer
> mapping where based upon tiling and pixel format we are allowing the
> rotated gtt.
>
> Tvrtko,
> Can these be moved to the intel_plane_atomic_check()

Good point, I think it can and should. I suppose it was just an 
oversight during endless rebasing, that I put the Y tiling check in 
there. So you can move that part as well while you are doing it.

Also highlights the fact we have no negative testing in kms_rotation_crc 
for this. I mean, trying to rotate by 90/270 linear or X tiled, or wrong 
pixel format.

Regards,

Tvrtko
Matt Roper April 2, 2015, 3:59 p.m. UTC | #5
On Thu, Apr 02, 2015 at 10:24:02AM +0530, Jindal, Sonika wrote:
> 
> 
> On 4/1/2015 11:52 PM, Matt Roper wrote:
> >On Mon, Mar 30, 2015 at 02:04:57PM +0530, Sonika Jindal wrote:
> >>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)
> >>
> >>Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
> >>---
> >>  drivers/gpu/drm/i915/i915_reg.h      |    2 +
> >>  drivers/gpu/drm/i915/intel_display.c |  103 +++++++++++++++++++++++++++-------
> >>  drivers/gpu/drm/i915/intel_drv.h     |    6 ++
> >>  drivers/gpu/drm/i915/intel_sprite.c  |   52 ++++++++++++-----
> >>  4 files changed, 129 insertions(+), 34 deletions(-)
> >>
> >>diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> >>index b522eb6..564bbd5 100644
> >>--- a/drivers/gpu/drm/i915/i915_reg.h
> >>+++ b/drivers/gpu/drm/i915/i915_reg.h
> >>@@ -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
> >>diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> >>index f0bbc22..86ee0f0 100644
> >>--- a/drivers/gpu/drm/i915/intel_display.c
> >>+++ b/drivers/gpu/drm/i915/intel_display.c
> >>@@ -2318,6 +2318,28 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
> >>  		return -EINVAL;
> >>  	}
> >>
> >>+	switch (fb->pixel_format) {
> >>+	case DRM_FORMAT_XRGB8888:
> >>+	case DRM_FORMAT_ARGB8888:
> >>+	case DRM_FORMAT_XBGR8888:
> >>+	case DRM_FORMAT_ABGR8888:
> >>+	case DRM_FORMAT_XRGB2101010:
> >>+	case DRM_FORMAT_ARGB2101010:
> >>+	case DRM_FORMAT_XBGR2101010:
> >>+	case DRM_FORMAT_ABGR2101010:
> >>+	case DRM_FORMAT_YUYV:
> >>+	case DRM_FORMAT_YVYU:
> >>+	case DRM_FORMAT_UYVY:
> >>+	case DRM_FORMAT_VYUY:
> >>+	case DRM_FORMAT_NV12:
> >>+		break;
> >>+
> >>+	default:
> >>+		DRM_DEBUG_KMS("Unsupported pixel format:%d for 90/270 rotation!\n",
> >>+		      fb->pixel_format);
> >>+		return -EINVAL;
> >>+	}
> >
> >Shouldn't we be matching against the list of formats the plane supports
> >(which may vary by platform, or by specific plane) rather than this
> >generic list?  We already specified what formats the plane can handle at
> >plane init time, so it seems like what you'd really want is just a call
> >to
> >
> >     drm_plane_check_pixel_format(plane_state->plane, fb->pixel_format)
> >
> >then follow that up with explicit checks to exclude any formats that we
> >can handle in 0/180, but not in 90/270.
> >
> I am not sure how it will help. drm_plane_check_pixel_format should
> be used to check the pixel format of the fb which we should be doing
> in some -check functions (I don't think we do that right now?)
> against what is supported by the plane.
> But to check for the formats which are allowed for 90/270, we would
> need this kind of explicit check.

Right, I guess there are two aspects here.  First, we need to properly
test for acceptable pixel formats for the plane in general; at the
moment the DRM core setplane() tests this, but if we use the atomic
ioctl it never gets checked (which is a bug).  So as you say, we need a
test in a _check() function to verify this.  We probably also need to
add an i-g-t test for it too.

Once we know that the pixel format is valid in general, it makes sense
to have a simpler test to reject some subset of those formats iff we
notice we're doing 90/270 rotation.  Maybe it's not really a big deal,
but it seems like that's a little easier to understand and verify than
having two completely separate lists, especially when future platforms
may support different formats, or even different planes of the same
platform have varying pixel format capabilities.


Matt

> >I'd also move this check to intel_plane_atomic_check(), since the
> >'check' code path is where I'd usually go looking for these types of
> >checks; the function you've got it in at the moment gets called from the
> >'prepare' step which works as well, but seems a bit less obvious.
> >
> Yes, I agree, but this is on top of Tvrtko's patch for secondary
> buffer mapping where based upon tiling and pixel format we are
> allowing the rotated gtt.
> 
> Tvrtko,
> Can these be moved to the intel_plane_atomic_check()
> 
> >>+
> >>  	return 0;
> >>  }
> >>
> >>@@ -2919,8 +2941,12 @@ 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 +3007,51 @@ 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);
> >
> >Minor nit; can we move this down inside the 'else' branch to make it
> >apparent how this serves a parallel role to 'tile_height' from the 'if'
> >branch.
> >
> Yes sure.
> >
> >>-	surf_addr = intel_plane_obj_offset(to_intel_plane(crtc->primary), obj);
> >>+	surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj);
> >>+
> >>+	if (rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))) {
> >
> >Might as well use the intel_rotation_90_or_270() function since we have
> >it.  Same comment for the sprite path farther down.
> >
> Sure.
> 
> Regards,
> Sonika
> >>+		/* 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 +12462,32 @@ 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)
> >>diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> >>index 811a1db..d32025a 100644
> >>--- a/drivers/gpu/drm/i915/intel_drv.h
> >>+++ b/drivers/gpu/drm/i915/intel_drv.h
> >>@@ -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);
> >>
> >>diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
> >>index f41e872..65eb147 100644
> >>--- a/drivers/gpu/drm/i915/intel_sprite.c
> >>+++ b/drivers/gpu/drm/i915/intel_sprite.c
> >>@@ -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 (rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))) {
> >>+		/* 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
> >>
> >>_______________________________________________
> >>Intel-gfx mailing list
> >>Intel-gfx@lists.freedesktop.org
> >>http://lists.freedesktop.org/mailman/listinfo/intel-gfx
> >
sonika.jindal@intel.com April 6, 2015, 12:27 p.m. UTC | #6
On 4/2/2015 9:29 PM, Matt Roper wrote:
> On Thu, Apr 02, 2015 at 10:24:02AM +0530, Jindal, Sonika wrote:
>>
>>
>> On 4/1/2015 11:52 PM, Matt Roper wrote:
>>> On Mon, Mar 30, 2015 at 02:04:57PM +0530, Sonika Jindal wrote:
>>>> 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)
>>>>
>>>> Signed-off-by: Sonika Jindal <sonika.jindal@intel.com>
>>>> ---
>>>>   drivers/gpu/drm/i915/i915_reg.h      |    2 +
>>>>   drivers/gpu/drm/i915/intel_display.c |  103 +++++++++++++++++++++++++++-------
>>>>   drivers/gpu/drm/i915/intel_drv.h     |    6 ++
>>>>   drivers/gpu/drm/i915/intel_sprite.c  |   52 ++++++++++++-----
>>>>   4 files changed, 129 insertions(+), 34 deletions(-)
>>>>
>>>> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
>>>> index b522eb6..564bbd5 100644
>>>> --- a/drivers/gpu/drm/i915/i915_reg.h
>>>> +++ b/drivers/gpu/drm/i915/i915_reg.h
>>>> @@ -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
>>>> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
>>>> index f0bbc22..86ee0f0 100644
>>>> --- a/drivers/gpu/drm/i915/intel_display.c
>>>> +++ b/drivers/gpu/drm/i915/intel_display.c
>>>> @@ -2318,6 +2318,28 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
>>>>   		return -EINVAL;
>>>>   	}
>>>>
>>>> +	switch (fb->pixel_format) {
>>>> +	case DRM_FORMAT_XRGB8888:
>>>> +	case DRM_FORMAT_ARGB8888:
>>>> +	case DRM_FORMAT_XBGR8888:
>>>> +	case DRM_FORMAT_ABGR8888:
>>>> +	case DRM_FORMAT_XRGB2101010:
>>>> +	case DRM_FORMAT_ARGB2101010:
>>>> +	case DRM_FORMAT_XBGR2101010:
>>>> +	case DRM_FORMAT_ABGR2101010:
>>>> +	case DRM_FORMAT_YUYV:
>>>> +	case DRM_FORMAT_YVYU:
>>>> +	case DRM_FORMAT_UYVY:
>>>> +	case DRM_FORMAT_VYUY:
>>>> +	case DRM_FORMAT_NV12:
>>>> +		break;
>>>> +
>>>> +	default:
>>>> +		DRM_DEBUG_KMS("Unsupported pixel format:%d for 90/270 rotation!\n",
>>>> +		      fb->pixel_format);
>>>> +		return -EINVAL;
>>>> +	}
>>>
>>> Shouldn't we be matching against the list of formats the plane supports
>>> (which may vary by platform, or by specific plane) rather than this
>>> generic list?  We already specified what formats the plane can handle at
>>> plane init time, so it seems like what you'd really want is just a call
>>> to
>>>
>>>      drm_plane_check_pixel_format(plane_state->plane, fb->pixel_format)
>>>
>>> then follow that up with explicit checks to exclude any formats that we
>>> can handle in 0/180, but not in 90/270.
>>>
>> I am not sure how it will help. drm_plane_check_pixel_format should
>> be used to check the pixel format of the fb which we should be doing
>> in some -check functions (I don't think we do that right now?)
>> against what is supported by the plane.
>> But to check for the formats which are allowed for 90/270, we would
>> need this kind of explicit check.
>
> Right, I guess there are two aspects here.  First, we need to properly
> test for acceptable pixel formats for the plane in general; at the
> moment the DRM core setplane() tests this, but if we use the atomic
> ioctl it never gets checked (which is a bug).  So as you say, we need a
> test in a _check() function to verify this.  We probably also need to
> add an i-g-t test for it too.
>
OK, I'l add that check in intel_atomic_plane_check()

> Once we know that the pixel format is valid in general, it makes sense
> to have a simpler test to reject some subset of those formats iff we
> notice we're doing 90/270 rotation.  Maybe it's not really a big deal,
> but it seems like that's a little easier to understand and verify than
> having two completely separate lists, especially when future platforms
> may support different formats, or even different planes of the same
> platform have varying pixel format capabilities.
>
I will send out a patch with the changes and add negative test case in 
kms_rotation_crc.

Regards,
Sonika

>
> Matt
>
>>> I'd also move this check to intel_plane_atomic_check(), since the
>>> 'check' code path is where I'd usually go looking for these types of
>>> checks; the function you've got it in at the moment gets called from the
>>> 'prepare' step which works as well, but seems a bit less obvious.
>>>
>> Yes, I agree, but this is on top of Tvrtko's patch for secondary
>> buffer mapping where based upon tiling and pixel format we are
>> allowing the rotated gtt.
>>
>> Tvrtko,
>> Can these be moved to the intel_plane_atomic_check()
>>
>>>> +
>>>>   	return 0;
>>>>   }
>>>>
>>>> @@ -2919,8 +2941,12 @@ 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 +3007,51 @@ 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);
>>>
>>> Minor nit; can we move this down inside the 'else' branch to make it
>>> apparent how this serves a parallel role to 'tile_height' from the 'if'
>>> branch.
>>>
>> Yes sure.
>>>
>>>> -	surf_addr = intel_plane_obj_offset(to_intel_plane(crtc->primary), obj);
>>>> +	surf_addr = intel_plane_obj_offset(to_intel_plane(plane), obj);
>>>> +
>>>> +	if (rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))) {
>>>
>>> Might as well use the intel_rotation_90_or_270() function since we have
>>> it.  Same comment for the sprite path farther down.
>>>
>> Sure.
>>
>> Regards,
>> Sonika
>>>> +		/* 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 +12462,32 @@ 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)
>>>> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
>>>> index 811a1db..d32025a 100644
>>>> --- a/drivers/gpu/drm/i915/intel_drv.h
>>>> +++ b/drivers/gpu/drm/i915/intel_drv.h
>>>> @@ -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);
>>>>
>>>> diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
>>>> index f41e872..65eb147 100644
>>>> --- a/drivers/gpu/drm/i915/intel_sprite.c
>>>> +++ b/drivers/gpu/drm/i915/intel_sprite.c
>>>> @@ -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 (rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))) {
>>>> +		/* 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
>>>>
>>>> _______________________________________________
>>>> Intel-gfx mailing list
>>>> Intel-gfx@lists.freedesktop.org
>>>> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>>>
>
Daniel Vetter April 7, 2015, 8:13 a.m. UTC | #7
On Thu, Apr 02, 2015 at 08:59:33AM -0700, Matt Roper wrote:
> On Thu, Apr 02, 2015 at 10:24:02AM +0530, Jindal, Sonika wrote:
> > I am not sure how it will help. drm_plane_check_pixel_format should
> > be used to check the pixel format of the fb which we should be doing
> > in some -check functions (I don't think we do that right now?)
> > against what is supported by the plane.
> > But to check for the formats which are allowed for 90/270, we would
> > need this kind of explicit check.
> 
> Right, I guess there are two aspects here.  First, we need to properly
> test for acceptable pixel formats for the plane in general; at the
> moment the DRM core setplane() tests this, but if we use the atomic
> ioctl it never gets checked (which is a bug).  So as you say, we need a
> test in a _check() function to verify this.  We probably also need to
> add an i-g-t test for it too.

The core atomic ioctl does check for valid plane pixel formats for you.
And there shouldn't be any other entrypoint (except internal ones, but
that's ok). Is there a bug left?

Definitely agree that testcases would be nice.
-Daniel
sonika.jindal@intel.com April 7, 2015, 8:22 a.m. UTC | #8
On 4/7/2015 1:43 PM, Daniel Vetter wrote:
> On Thu, Apr 02, 2015 at 08:59:33AM -0700, Matt Roper wrote:
>> On Thu, Apr 02, 2015 at 10:24:02AM +0530, Jindal, Sonika wrote:
>>> I am not sure how it will help. drm_plane_check_pixel_format should
>>> be used to check the pixel format of the fb which we should be doing
>>> in some -check functions (I don't think we do that right now?)
>>> against what is supported by the plane.
>>> But to check for the formats which are allowed for 90/270, we would
>>> need this kind of explicit check.
>>
>> Right, I guess there are two aspects here.  First, we need to properly
>> test for acceptable pixel formats for the plane in general; at the
>> moment the DRM core setplane() tests this, but if we use the atomic
>> ioctl it never gets checked (which is a bug).  So as you say, we need a
>> test in a _check() function to verify this.  We probably also need to
>> add an i-g-t test for it too.
>
> The core atomic ioctl does check for valid plane pixel formats for you.
> And there shouldn't be any other entrypoint (except internal ones, but
> that's ok). Is there a bug left?
>
Oh, yes the check is there. Will abandon that check then and just move 
the 90/270 pixel format check to intel_plane_atomic_check.

Regards,
Sonika
> Definitely agree that testcases would be nice.
> -Daniel
>
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index b522eb6..564bbd5 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -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
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index f0bbc22..86ee0f0 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2318,6 +2318,28 @@  intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
 		return -EINVAL;
 	}
 
+	switch (fb->pixel_format) {
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_ARGB8888:
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_ABGR8888:
+	case DRM_FORMAT_XRGB2101010:
+	case DRM_FORMAT_ARGB2101010:
+	case DRM_FORMAT_XBGR2101010:
+	case DRM_FORMAT_ABGR2101010:
+	case DRM_FORMAT_YUYV:
+	case DRM_FORMAT_YVYU:
+	case DRM_FORMAT_UYVY:
+	case DRM_FORMAT_VYUY:
+	case DRM_FORMAT_NV12:
+		break;
+
+	default:
+		DRM_DEBUG_KMS("Unsupported pixel format:%d for 90/270 rotation!\n",
+		      fb->pixel_format);
+		return -EINVAL;
+	}
+
 	return 0;
 }
 
@@ -2919,8 +2941,12 @@  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 +3007,51 @@  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 (rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))) {
+		/* 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 +12462,32 @@  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)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 811a1db..d32025a 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -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);
 
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index f41e872..65eb147 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -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 (rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))) {
+		/* 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);