Re: [PATCH 1/7] drm: Add drm_rotation_90_or_270()

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On ke, 2016-07-20 at 16:18 +0300, ville.syrjala@xxxxxxxxxxxxxxx wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> 
> We have intel_rotation_90_or_270() in i915 to check if the rotation is
> 90 or 270 degrees. Similar checks are elsewhere in drm, so let's move
> the helper into a central place and use it everwhere.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>

> ---
>  drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c |  4 ++--
>  drivers/gpu/drm/drm_atomic_helper.c             |  2 +-
>  drivers/gpu/drm/drm_crtc.c                      |  3 +--
>  drivers/gpu/drm/i915/intel_atomic_plane.c       |  2 +-
>  drivers/gpu/drm/i915/intel_display.c            | 10 +++++-----
>  drivers/gpu/drm/i915/intel_drv.h                |  6 ------
>  drivers/gpu/drm/i915/intel_fbc.c                |  2 +-
>  drivers/gpu/drm/i915/intel_pm.c                 | 12 ++++++------
>  drivers/gpu/drm/i915/intel_sprite.c             |  2 +-
>  drivers/gpu/drm/omapdrm/omap_plane.c            |  8 ++------
>  include/drm/drm_crtc.h                          |  5 +++++
>  11 files changed, 25 insertions(+), 31 deletions(-)
> 
> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> index 016c191221f3..f3350c80704d 100644
> --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> @@ -393,7 +393,7 @@ static void atmel_hlcdc_plane_update_format(struct atmel_hlcdc_plane *plane,
>  
>  	if ((state->base.fb->pixel_format == DRM_FORMAT_YUV422 ||
>  	     state->base.fb->pixel_format == DRM_FORMAT_NV61) &&
> -	    (state->base.rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))))
> +	    drm_rotation_90_or_270(state->base.rotation))
>  		cfg |= ATMEL_HLCDC_YUV422ROT;
>  
>  	atmel_hlcdc_layer_update_cfg(&plane->layer,
> @@ -628,7 +628,7 @@ static int atmel_hlcdc_plane_atomic_check(struct drm_plane *p,
>  	/*
>  	 * Swap width and size in case of 90 or 270 degrees rotation
>  	 */
> -	if (state->base.rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))) {
> +	if (drm_rotation_90_or_270(state->base.rotation)) {
>  		tmp = state->crtc_w;
>  		state->crtc_w = state->crtc_h;
>  		state->crtc_h = tmp;
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
> index de7fddce3cef..3e12e6e646ad 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -2348,7 +2348,7 @@ int __drm_atomic_helper_set_config(struct drm_mode_set *set,
>  	primary_state->crtc_h = vdisplay;
>  	primary_state->src_x = set->x << 16;
>  	primary_state->src_y = set->y << 16;
> -	if (primary_state->rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))) {
> +	if (drm_rotation_90_or_270(primary_state->rotation)) {
>  		primary_state->src_w = vdisplay << 16;
>  		primary_state->src_h = hdisplay << 16;
>  	} else {
> diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
> index f1d9f0569d7f..986de180e6c2 100644
> --- a/drivers/gpu/drm/drm_crtc.c
> +++ b/drivers/gpu/drm/drm_crtc.c
> @@ -2804,8 +2804,7 @@ int drm_crtc_check_viewport(const struct drm_crtc *crtc,
>  	drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay);
>  
>  	if (crtc->state &&
> -	    crtc->primary->state->rotation & (BIT(DRM_ROTATE_90) |
> -					      BIT(DRM_ROTATE_270)))
> +	    drm_rotation_90_or_270(crtc->primary->state->rotation))
>  		swap(hdisplay, vdisplay);
>  
>  	return check_src_coords(x << 16, y << 16,
> diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c
> index 7de7721f65bc..c19eb9a0cd4a 100644
> --- a/drivers/gpu/drm/i915/intel_atomic_plane.c
> +++ b/drivers/gpu/drm/i915/intel_atomic_plane.c
> @@ -156,7 +156,7 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
>  	intel_state->clip.y2 =
>  		crtc_state->base.enable ? crtc_state->pipe_src_h : 0;
>  
> -	if (state->fb && intel_rotation_90_or_270(state->rotation)) {
> +	if (state->fb && drm_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");
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 51fbca756cdb..08b9f9a19df0 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -2138,7 +2138,7 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view,
>  			const struct drm_framebuffer *fb,
>  			unsigned int rotation)
>  {
> -	if (intel_rotation_90_or_270(rotation)) {
> +	if (drm_rotation_90_or_270(rotation)) {
>  		*view = i915_ggtt_view_rotated;
>  		view->params.rotated = to_intel_framebuffer(fb)->rot_info;
>  	} else {
> @@ -2352,7 +2352,7 @@ u32 intel_compute_tile_offset(int *x, int *y,
>  		intel_tile_dims(dev_priv, &tile_width, &tile_height,
>  				fb_modifier, cpp);
>  
> -		if (intel_rotation_90_or_270(rotation)) {
> +		if (drm_rotation_90_or_270(rotation)) {
>  			pitch_tiles = pitch / tile_height;
>  			swap(tile_width, tile_height);
>  		} else {
> @@ -3011,7 +3011,7 @@ static void skylake_update_primary_plane(struct drm_plane *plane,
>  
>  	WARN_ON(drm_rect_width(&plane_state->src) == 0);
>  
> -	if (intel_rotation_90_or_270(rotation)) {
> +	if (drm_rotation_90_or_270(rotation)) {
>  		int cpp = drm_format_plane_cpp(fb->pixel_format, 0);
>  
>  		/* stride = Surface height in tiles */
> @@ -4179,7 +4179,7 @@ skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach,
>  		to_intel_crtc(crtc_state->base.crtc);
>  	int need_scaling;
>  
> -	need_scaling = intel_rotation_90_or_270(rotation) ?
> +	need_scaling = drm_rotation_90_or_270(rotation) ?
>  		(src_h != dst_w || src_w != dst_h):
>  		(src_w != dst_w || src_h != dst_h);
>  
> @@ -11414,7 +11414,7 @@ static void skl_do_mmio_flip(struct intel_crtc *intel_crtc,
>  	 * The stride is either expressed as a multiple of 64 bytes chunks for
>  	 * linear buffers or in number of tiles for tiled buffers.
>  	 */
> -	if (intel_rotation_90_or_270(rotation)) {
> +	if (drm_rotation_90_or_270(rotation)) {
>  		/* stride = Surface height in tiles */
>  		tile_height = intel_tile_height(dev_priv, fb->modifier[0], 0);
>  		stride = DIV_ROUND_UP(fb->height, tile_height);
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index e74d851868c5..907a72cfdad3 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -1255,12 +1255,6 @@ int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
>  unsigned int intel_tile_height(const struct drm_i915_private *dev_priv,
>  			       uint64_t fb_modifier, unsigned int cpp);
>  
> -static inline bool
> -intel_rotation_90_or_270(unsigned int rotation)
> -{
> -	return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
> -}
> -
>  void intel_create_rotation_property(struct drm_device *dev,
>  					struct intel_plane *plane);
>  
> diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
> index 781e2f5f7cd8..f3f3322139e0 100644
> --- a/drivers/gpu/drm/i915/intel_fbc.c
> +++ b/drivers/gpu/drm/i915/intel_fbc.c
> @@ -84,7 +84,7 @@ static void intel_fbc_get_plane_source_size(struct intel_fbc_state_cache *cache,
>  {
>  	int w, h;
>  
> -	if (intel_rotation_90_or_270(cache->plane.rotation)) {
> +	if (drm_rotation_90_or_270(cache->plane.rotation)) {
>  		w = cache->plane.src_h;
>  		h = cache->plane.src_w;
>  	} else {
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index a1bf5f8fbb1c..53116cdc43a6 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -3004,7 +3004,7 @@ skl_plane_downscale_amount(const struct intel_plane_state *pstate)
>  	src_h = drm_rect_height(&pstate->src);
>  	dst_w = drm_rect_width(&pstate->dst);
>  	dst_h = drm_rect_height(&pstate->dst);
> -	if (intel_rotation_90_or_270(pstate->base.rotation))
> +	if (drm_rotation_90_or_270(pstate->base.rotation))
>  		swap(dst_w, dst_h);
>  
>  	downscale_h = max(src_h / dst_h, (uint32_t)DRM_PLANE_HELPER_NO_SCALING);
> @@ -3035,7 +3035,7 @@ skl_plane_relative_data_rate(const struct intel_crtc_state *cstate,
>  	width = drm_rect_width(&intel_pstate->src) >> 16;
>  	height = drm_rect_height(&intel_pstate->src) >> 16;
>  
> -	if (intel_rotation_90_or_270(pstate->rotation))
> +	if (drm_rotation_90_or_270(pstate->rotation))
>  		swap(width, height);
>  
>  	/* for planar format */
> @@ -3137,7 +3137,7 @@ skl_ddb_min_alloc(const struct drm_plane_state *pstate,
>  	src_w = drm_rect_width(&intel_pstate->src) >> 16;
>  	src_h = drm_rect_height(&intel_pstate->src) >> 16;
>  
> -	if (intel_rotation_90_or_270(pstate->rotation))
> +	if (drm_rotation_90_or_270(pstate->rotation))
>  		swap(src_w, src_h);
>  
>  	/* Halve UV plane width and height for NV12 */
> @@ -3151,7 +3151,7 @@ skl_ddb_min_alloc(const struct drm_plane_state *pstate,
>  	else
>  		plane_bpp = drm_format_plane_cpp(fb->pixel_format, 0);
>  
> -	if (intel_rotation_90_or_270(pstate->rotation)) {
> +	if (drm_rotation_90_or_270(pstate->rotation)) {
>  		switch (plane_bpp) {
>  		case 1:
>  			min_scanlines = 32;
> @@ -3407,7 +3407,7 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
>  	width = drm_rect_width(&intel_pstate->src) >> 16;
>  	height = drm_rect_height(&intel_pstate->src) >> 16;
>  
> -	if (intel_rotation_90_or_270(pstate->rotation))
> +	if (drm_rotation_90_or_270(pstate->rotation))
>  		swap(width, height);
>  
>  	cpp = drm_format_plane_cpp(fb->pixel_format, 0);
> @@ -3428,7 +3428,7 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
>  	    fb->modifier[0] == I915_FORMAT_MOD_Yf_TILED) {
>  		uint32_t min_scanlines = 4;
>  		uint32_t y_tile_minimum;
> -		if (intel_rotation_90_or_270(pstate->rotation)) {
> +		if (drm_rotation_90_or_270(pstate->rotation)) {
>  			int cpp = (fb->pixel_format == DRM_FORMAT_NV12) ?
>  				drm_format_plane_cpp(fb->pixel_format, 1) :
>  				drm_format_plane_cpp(fb->pixel_format, 0);
> diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
> index 0de935ad01c2..cc6af1410d67 100644
> --- a/drivers/gpu/drm/i915/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/intel_sprite.c
> @@ -251,7 +251,7 @@ skl_update_plane(struct drm_plane *drm_plane,
>  
>  	surf_addr = intel_plane_obj_offset(intel_plane, obj, 0);
>  
> -	if (intel_rotation_90_or_270(rotation)) {
> +	if (drm_rotation_90_or_270(rotation)) {
>  		int cpp = drm_format_plane_cpp(fb->pixel_format, 0);
>  
>  		/* stride: Surface height in tiles */
> diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c b/drivers/gpu/drm/omapdrm/omap_plane.c
> index 5252ab720e70..7f0d567b8d67 100644
> --- a/drivers/gpu/drm/omapdrm/omap_plane.c
> +++ b/drivers/gpu/drm/omapdrm/omap_plane.c
> @@ -108,16 +108,12 @@ static void omap_plane_atomic_update(struct drm_plane *plane,
>  	win.src_x = state->src_x >> 16;
>  	win.src_y = state->src_y >> 16;
>  
> -	switch (state->rotation & DRM_ROTATE_MASK) {
> -	case BIT(DRM_ROTATE_90):
> -	case BIT(DRM_ROTATE_270):
> +	if (drm_rotation_90_or_270(state->rotation)) {
>  		win.src_w = state->src_h >> 16;
>  		win.src_h = state->src_w >> 16;
> -		break;
> -	default:
> +	} else {
>  		win.src_w = state->src_w >> 16;
>  		win.src_h = state->src_h >> 16;
> -		break;
>  	}
>  
>  	/* update scanout: */
> diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
> index 3edeaf88ebc0..b7ac7dcf52db 100644
> --- a/include/drm/drm_crtc.h
> +++ b/include/drm/drm_crtc.h
> @@ -92,6 +92,11 @@ static inline uint64_t I642U64(int64_t val)
>  #define DRM_REFLECT_X	4
>  #define DRM_REFLECT_Y	5
>  
> +static inline bool drm_rotation_90_or_270(unsigned int rotation)
> +{
> +	return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
> +}
> +
>  enum drm_connector_force {
>  	DRM_FORCE_UNSPECIFIED,
>  	DRM_FORCE_OFF,
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
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