Re: [PATCH 3/4] drm/i915: preparations for enabling P010, P012, P016 formats

[Maarten Lankhorst <maarten.lankhorst@linux.intel.com>]

Op 16-08-18 om 14:55 schreef Juha-Pekka Heikkila:
> Preparations for enabling P010, P012 and P016 formats. These
> formats will extend NV12 for larger bit depths.
>
> Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> ---
>  drivers/gpu/drm/i915/intel_atomic.c       |  3 +-
>  drivers/gpu/drm/i915/intel_atomic_plane.c |  2 +-
>  drivers/gpu/drm/i915/intel_display.c      | 46 +++++++++++++++++++++++++++----
>  drivers/gpu/drm/i915/intel_drv.h          |  1 +
>  drivers/gpu/drm/i915/intel_pm.c           | 19 ++++++-------
>  drivers/gpu/drm/i915/intel_sprite.c       | 18 +++++++++++-
>  6 files changed, 69 insertions(+), 20 deletions(-)
For patches 2, 3, 4:

Acked-by: Jani Nikula <jani.nikula@intel.com> #irc, for merging through drm-misc-next.

Are you ok with Swati Sharma's comment on patch 4? I can fix it up when committing.
> diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c
> index b04952b..ab76b72 100644
> --- a/drivers/gpu/drm/i915/intel_atomic.c
> +++ b/drivers/gpu/drm/i915/intel_atomic.c
> @@ -334,8 +334,7 @@ int intel_atomic_setup_scalers(struct drm_i915_private *dev_priv,
>  		/* set scaler mode */
>  		if ((INTEL_GEN(dev_priv) >= 9) &&
>  		    plane_state && plane_state->base.fb &&
> -		    plane_state->base.fb->format->format ==
> -		    DRM_FORMAT_NV12) {
> +		    is_planar_yuv_format(plane_state->base.fb->format->format)) {
>  			if (INTEL_GEN(dev_priv) == 9 &&
>  			    !IS_GEMINILAKE(dev_priv) &&
>  			    !IS_SKYLAKE(dev_priv))
> diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c
> index dcba645..58b2fc6 100644
> --- a/drivers/gpu/drm/i915/intel_atomic_plane.c
> +++ b/drivers/gpu/drm/i915/intel_atomic_plane.c
> @@ -182,7 +182,7 @@ int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_
>  	else
>  		crtc_state->active_planes &= ~BIT(intel_plane->id);
>  
> -	if (state->visible && state->fb->format->format == DRM_FORMAT_NV12)
> +	if (state->visible && is_planar_yuv_format(state->fb->format->format))
>  		crtc_state->nv12_planes |= BIT(intel_plane->id);
>  	else
>  		crtc_state->nv12_planes &= ~BIT(intel_plane->id);
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 690e1e8..80ce742 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -2667,6 +2667,12 @@ int skl_format_to_fourcc(int format, bool rgb_order, bool alpha)
>  		return DRM_FORMAT_RGB565;
>  	case PLANE_CTL_FORMAT_NV12:
>  		return DRM_FORMAT_NV12;
> +	case PLANE_CTL_FORMAT_P010:
> +		return DRM_FORMAT_P010;
> +	case PLANE_CTL_FORMAT_P012:
> +		return DRM_FORMAT_P012;
> +	case PLANE_CTL_FORMAT_P016:
> +		return DRM_FORMAT_P016;
>  	default:
>  	case PLANE_CTL_FORMAT_XRGB_8888:
>  		if (rgb_order) {
> @@ -3182,7 +3188,7 @@ int skl_check_plane_surface(const struct intel_crtc_state *crtc_state,
>  	 * Handle the AUX surface first since
>  	 * the main surface setup depends on it.
>  	 */
> -	if (fb->format->format == DRM_FORMAT_NV12) {
> +	if (is_planar_yuv_format(fb->format->format)) {
>  		ret = skl_check_nv12_surface(crtc_state, plane_state);
>  		if (ret)
>  			return ret;
> @@ -3507,6 +3513,12 @@ static u32 skl_plane_ctl_format(uint32_t pixel_format)
>  		return PLANE_CTL_FORMAT_YUV422 | PLANE_CTL_YUV422_VYUY;
>  	case DRM_FORMAT_NV12:
>  		return PLANE_CTL_FORMAT_NV12;
> +	case DRM_FORMAT_P010:
> +		return PLANE_CTL_FORMAT_P010;
> +	case DRM_FORMAT_P012:
> +		return PLANE_CTL_FORMAT_P012;
> +	case DRM_FORMAT_P016:
> +		return PLANE_CTL_FORMAT_P016;
>  	default:
>  		MISSING_CASE(pixel_format);
>  	}
> @@ -4808,8 +4820,7 @@ skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach,
>  	need_scaling = src_w != dst_w || src_h != dst_h;
>  
>  	if (plane_scaler_check)
> -		if (pixel_format == DRM_FORMAT_NV12)
> -			need_scaling = true;
> +		need_scaling = is_planar_yuv_format(pixel_format);
>  
>  	if (crtc_state->ycbcr420 && scaler_user == SKL_CRTC_INDEX)
>  		need_scaling = true;
> @@ -4850,7 +4861,7 @@ skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach,
>  		return 0;
>  	}
>  
> -	if (plane_scaler_check && pixel_format == DRM_FORMAT_NV12 &&
> +	if (plane_scaler_check && is_planar_yuv_format(pixel_format) &&
>  	    (src_h < SKL_MIN_YUV_420_SRC_H || src_w < SKL_MIN_YUV_420_SRC_W)) {
>  		DRM_DEBUG_KMS("NV12: src dimensions not met\n");
>  		return -EINVAL;
> @@ -4955,6 +4966,9 @@ static int skl_update_scaler_plane(struct intel_crtc_state *crtc_state,
>  	case DRM_FORMAT_UYVY:
>  	case DRM_FORMAT_VYUY:
>  	case DRM_FORMAT_NV12:
> +	case DRM_FORMAT_P010:
> +	case DRM_FORMAT_P012:
> +	case DRM_FORMAT_P016:
>  		break;
>  	default:
>  		DRM_DEBUG_KMS("[PLANE:%d:%s] FB:%d unsupported scaling format 0x%x\n",
> @@ -13179,7 +13193,7 @@ skl_max_scale(struct intel_crtc *intel_crtc,
>  	 *            or
>  	 *    cdclk/crtc_clock
>  	 */
> -	mult = pixel_format == DRM_FORMAT_NV12 ? 2 : 3;
> +	mult = is_planar_yuv_format(pixel_format) ? 2 : 3;
>  	tmpclk1 = (1 << 16) * mult - 1;
>  	tmpclk2 = (1 << 8) * ((max_dotclk << 8) / crtc_clock);
>  	max_scale = min(tmpclk1, tmpclk2);
> @@ -13411,6 +13425,9 @@ static bool skl_plane_format_mod_supported(struct drm_plane *_plane,
>  	case DRM_FORMAT_UYVY:
>  	case DRM_FORMAT_VYUY:
>  	case DRM_FORMAT_NV12:
> +	case DRM_FORMAT_P010:
> +	case DRM_FORMAT_P012:
> +	case DRM_FORMAT_P016:
>  		if (modifier == I915_FORMAT_MOD_Yf_TILED)
>  			return true;
>  		/* fall through */
> @@ -14556,6 +14573,23 @@ static int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
>  			goto err;
>  		}
>  		break;
> +	case DRM_FORMAT_P010:
> +	case DRM_FORMAT_P012:
> +	case DRM_FORMAT_P016:
> +		if (mode_cmd->modifier[0] == I915_FORMAT_MOD_Y_TILED_CCS ||
> +		    mode_cmd->modifier[0] == I915_FORMAT_MOD_Yf_TILED_CCS) {
> +			DRM_DEBUG_KMS("RC not to be enabled with %s\n",
> +				      drm_get_format_name(mode_cmd->pixel_format,
> +				      &format_name));
> +			goto err;
> +		}
> +		if (!IS_GEMINILAKE(dev_priv) && !IS_CANNONLAKE(dev_priv)) {
> +			DRM_DEBUG_KMS("unsupported pixel format: %s\n",
> +				      drm_get_format_name(mode_cmd->pixel_format,
> +				      &format_name));
> +			goto err;
> +		}
> +		break;
>  	default:
>  		DRM_DEBUG_KMS("unsupported pixel format: %s\n",
>  			      drm_get_format_name(mode_cmd->pixel_format, &format_name));
> @@ -14568,7 +14602,7 @@ static int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
>  
>  	drm_helper_mode_fill_fb_struct(&dev_priv->drm, fb, mode_cmd);
>  
> -	if (fb->format->format == DRM_FORMAT_NV12 &&
> +	if (is_planar_yuv_format(fb->format->format) &&
>  	    (fb->width < SKL_MIN_YUV_420_SRC_W ||
>  	     fb->height < SKL_MIN_YUV_420_SRC_H ||
>  	     (fb->width % 4) != 0 || (fb->height % 4) != 0)) {
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index 7b984ae..20af577 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -2097,6 +2097,7 @@ bool intel_sdvo_init(struct drm_i915_private *dev_priv,
>  
>  
>  /* intel_sprite.c */
> +bool is_planar_yuv_format(uint32_t pixelformat);
>  int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
>  			     int usecs);
>  struct intel_plane *intel_sprite_plane_create(struct drm_i915_private *dev_priv,
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index d99e5fa..e1292b2 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -3942,7 +3942,7 @@ skl_ddb_get_hw_plane_state(struct drm_i915_private *dev_priv,
>  	if (INTEL_GEN(dev_priv) < 11)
>  		val2 = I915_READ(PLANE_NV12_BUF_CFG(pipe, plane_id));
>  
> -	if (fourcc == DRM_FORMAT_NV12) {
> +	if (is_planar_yuv_format(fourcc)) {
>  		skl_ddb_entry_init_from_hw(dev_priv,
>  					   &ddb->plane[pipe][plane_id], val2);
>  		skl_ddb_entry_init_from_hw(dev_priv,
> @@ -4150,7 +4150,7 @@ skl_plane_relative_data_rate(const struct intel_crtc_state *cstate,
>  
>  	if (intel_plane->id == PLANE_CURSOR)
>  		return 0;
> -	if (plane == 1 && format != DRM_FORMAT_NV12)
> +	if (plane == 1 && !is_planar_yuv_format(format))
>  		return 0;
>  
>  	/*
> @@ -4162,7 +4162,7 @@ skl_plane_relative_data_rate(const struct intel_crtc_state *cstate,
>  	height = drm_rect_height(&intel_pstate->base.src) >> 16;
>  
>  	/* UV plane does 1/2 pixel sub-sampling */
> -	if (plane == 1 && format == DRM_FORMAT_NV12) {
> +	if (plane == 1 && is_planar_yuv_format(format)) {
>  		width /= 2;
>  		height /= 2;
>  	}
> @@ -4229,7 +4229,7 @@ skl_ddb_min_alloc(const struct drm_plane_state *pstate, const int plane)
>  		return 0;
>  
>  	/* For packed formats, and uv-plane, return 0 */
> -	if (plane == 1 && fb->format->format != DRM_FORMAT_NV12)
> +	if (plane == 1 && !is_planar_yuv_format(fb->format->format))
>  		return 0;
>  
>  	/* For Non Y-tile return 8-blocks */
> @@ -4247,7 +4247,7 @@ skl_ddb_min_alloc(const struct drm_plane_state *pstate, const int plane)
>  	src_w = drm_rect_width(&intel_pstate->base.src) >> 16;
>  	src_h = drm_rect_height(&intel_pstate->base.src) >> 16;
>  
> -	/* Halve UV plane width and height for NV12 */
> +	/* Halve UV plane width and height for NV12 and other planar yuv */
>  	if (plane == 1) {
>  		src_w /= 2;
>  		src_h /= 2;
> @@ -4526,8 +4526,8 @@ skl_compute_plane_wm_params(const struct drm_i915_private *dev_priv,
>  		return 0;
>  
>  	/* only NV12 format has two planes */
> -	if (plane_id == 1 && fb->format->format != DRM_FORMAT_NV12) {
> -		DRM_DEBUG_KMS("Non NV12 format have single plane\n");
> +	if (plane_id == 1 && !is_planar_yuv_format(fb->format->format)) {
> +		DRM_DEBUG_KMS("Non planar format have single plane\n");
>  		return -EINVAL;
>  	}
>  
> @@ -4538,7 +4538,7 @@ skl_compute_plane_wm_params(const struct drm_i915_private *dev_priv,
>  	wp->x_tiled = fb->modifier == I915_FORMAT_MOD_X_TILED;
>  	wp->rc_surface = fb->modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
>  			 fb->modifier == I915_FORMAT_MOD_Yf_TILED_CCS;
> -	wp->is_planar = fb->format->format == DRM_FORMAT_NV12;
> +	wp->is_planar = is_planar_yuv_format(fb->format->format);
>  
>  	if (plane->id == PLANE_CURSOR) {
>  		wp->width = intel_pstate->base.crtc_w;
> @@ -4813,8 +4813,7 @@ skl_compute_wm_levels(const struct drm_i915_private *dev_priv,
>  			return ret;
>  	}
>  
> -	if (intel_pstate->base.fb->format->format == DRM_FORMAT_NV12)
> -		wm->is_planar = true;
> +	wm->is_planar = is_planar_yuv_format(intel_pstate->base.fb->format->format);
>  
>  	return 0;
>  }
> diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
> index f7026e8..68db026 100644
> --- a/drivers/gpu/drm/i915/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/intel_sprite.c
> @@ -41,6 +41,19 @@
>  #include <drm/i915_drm.h>
>  #include "i915_drv.h"
>  
> +bool is_planar_yuv_format(uint32_t pixelformat)
> +{
> +	switch (pixelformat) {
> +	case DRM_FORMAT_NV12:
> +	case DRM_FORMAT_P010:
> +	case DRM_FORMAT_P012:
> +	case DRM_FORMAT_P016:
> +		return true;
> +	default:
> +		return false;
> +	}
> +}
> +
>  int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
>  			     int usecs)
>  {
> @@ -1039,7 +1052,7 @@ intel_check_sprite_plane(struct intel_plane *plane,
>  		src->y2 = (src_y + src_h) << 16;
>  
>  		if (fb->format->is_yuv &&
> -    		    fb->format->format != DRM_FORMAT_NV12 &&
> +		    !is_planar_yuv_format(fb->format->format) &&
>  		    (src_x % 2 || src_w % 2)) {
>  			DRM_DEBUG_KMS("src x/w (%u, %u) must be a multiple of 2 for YUV planes\n",
>  				      src_x, src_w);
> @@ -1419,6 +1432,9 @@ static bool skl_plane_format_mod_supported(struct drm_plane *_plane,
>  	case DRM_FORMAT_UYVY:
>  	case DRM_FORMAT_VYUY:
>  	case DRM_FORMAT_NV12:
> +	case DRM_FORMAT_P010:
> +	case DRM_FORMAT_P012:
> +	case DRM_FORMAT_P016:
>  		if (modifier == I915_FORMAT_MOD_Yf_TILED)
>  			return true;
>  		/* fall through */


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