Dne nedelja, 05. junij 2022 ob 17:47:31 CEST je Roman Stratiienko napisal(a): > Allwinner DE2 and DE3 hardware support 3 pixel blend modes: > "None", "Pre-multiplied", "Coverage" > > Add the blend mode property and route it to the appropriate registers. > > Note: > "force_premulti" parameter was added to handle multi-overlay channel > cases in future changes. It must be set to true for cases when more > than 1 overlay layer is used within a channel and at least one of the > overlay layers within a group uses premultiplied blending mode. Please remove this parameter. It's nothing special, so it can be easily added once it's actually needed. For now, it only complicates code. > > Test: > Manually tested all the modes using kmsxx python wrapper with and > without 'force_premulti' flag enabled. > > Signed-off-by: Roman Stratiienko <roman.o.stratiienko@xxxxxxxxxxxxxxx> > --- > drivers/gpu/drm/sun4i/sun8i_mixer.h | 2 ++ > drivers/gpu/drm/sun4i/sun8i_ui_layer.c | 48 ++++++++++++++++++++----- > drivers/gpu/drm/sun4i/sun8i_ui_layer.h | 5 +++ > drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 49 ++++++++++++++++++++++---- > drivers/gpu/drm/sun4i/sun8i_vi_layer.h | 5 +++ > 5 files changed, 94 insertions(+), 15 deletions(-) > > diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.h > b/drivers/gpu/drm/sun4i/sun8i_mixer.h index ebfc276b2464..5c05907e26fb > 100644 > --- a/drivers/gpu/drm/sun4i/sun8i_mixer.h > +++ b/drivers/gpu/drm/sun4i/sun8i_mixer.h > @@ -65,6 +65,8 @@ > #define SUN8I_MIXER_BLEND_ROUTE_PIPE_MSK(n) (0xf << ((n) << 2)) > #define SUN8I_MIXER_BLEND_ROUTE_PIPE_SHIFT(n) ((n) << 2) > > +#define SUN8I_MIXER_BLEND_PREMULTIPLY_EN(pipe) BIT(pipe) > + > #define SUN8I_MIXER_BLEND_OUTCTL_INTERLACED BIT(1) > > #define SUN50I_MIXER_BLEND_CSC_CTL_EN(ch) BIT(ch) > diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c > b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c index 6ccbbca3176d..29c0d9cca19a > 100644 > --- a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c > +++ b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c > @@ -58,24 +58,46 @@ static void sun8i_ui_layer_enable(struct sun8i_mixer > *mixer, int channel, } > > static void sun8i_ui_layer_update_alpha(struct sun8i_mixer *mixer, int > channel, - int overlay, struct drm_plane *plane) > + int overlay, struct drm_plane *plane, > + unsigned int zpos, bool force_premulti) > { > - u32 mask, val, ch_base; > + u32 mask, val, ch_base, bld_base; > + bool in_premulti, out_premulti; > > + bld_base = sun8i_blender_base(mixer); > ch_base = sun8i_channel_base(mixer, channel); > > + in_premulti = plane->state->pixel_blend_mode == DRM_MODE_BLEND_PREMULTI; > + out_premulti = force_premulti || in_premulti; > + > mask = SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MODE_MASK | > - SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MASK; > + SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MASK | > + SUN8I_MIXER_CHAN_UI_LAYER_ATTR_BLEND_MASK; > > val = SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA(plane->state->alpha >> 8); > > - val |= (plane->state->alpha == DRM_BLEND_ALPHA_OPAQUE) ? > - SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MODE_PIXEL : > - SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MODE_COMBINED; > + if (plane->state->pixel_blend_mode == DRM_MODE_BLEND_PIXEL_NONE) { > + val |= SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MODE_LAYER; > + } else { > + val |= (plane->state->alpha == DRM_BLEND_ALPHA_OPAQUE) ? > + SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MODE_PIXEL : > + SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MODE_COMBINED; > + > + if (in_premulti) > + val |= SUN8I_MIXER_CHAN_UI_LAYER_ATTR_BLEND_PREMULTI; > + } > + > + if (!in_premulti && out_premulti) > + val |= SUN8I_MIXER_CHAN_UI_LAYER_ATTR_BLEND_COV2PREM; > > regmap_update_bits(mixer->engine.regs, > SUN8I_MIXER_CHAN_UI_LAYER_ATTR(ch_base, overlay), > mask, val); > + > + regmap_update_bits( > + mixer->engine.regs, SUN8I_MIXER_BLEND_PREMULTIPLY(bld_base), > + SUN8I_MIXER_BLEND_PREMULTIPLY_EN(zpos), > + out_premulti ? SUN8I_MIXER_BLEND_PREMULTIPLY_EN(zpos) : 0); > } > > static int sun8i_ui_layer_update_coord(struct sun8i_mixer *mixer, int > channel, @@ -274,7 +296,7 @@ static void > sun8i_ui_layer_atomic_update(struct drm_plane *plane, > sun8i_ui_layer_update_coord(mixer, layer->channel, > layer->overlay, plane, zpos); > sun8i_ui_layer_update_alpha(mixer, layer->channel, > - layer->overlay, plane); > + layer->overlay, plane, zpos, false); > sun8i_ui_layer_update_formats(mixer, layer->channel, > layer->overlay, plane); > sun8i_ui_layer_update_buffer(mixer, layer->channel, > @@ -332,8 +354,8 @@ struct sun8i_ui_layer *sun8i_ui_layer_init_one(struct > drm_device *drm, { > enum drm_plane_type type = DRM_PLANE_TYPE_OVERLAY; > int channel = mixer->cfg->vi_num + index; > + unsigned int plane_cnt, blend_modes; > struct sun8i_ui_layer *layer; > - unsigned int plane_cnt; > int ret; > > layer = devm_kzalloc(drm->dev, sizeof(*layer), GFP_KERNEL); > @@ -362,6 +384,16 @@ struct sun8i_ui_layer *sun8i_ui_layer_init_one(struct > drm_device *drm, return ERR_PTR(ret); > } > > + blend_modes = BIT(DRM_MODE_BLEND_PREMULTI) | > + BIT(DRM_MODE_BLEND_COVERAGE) | > + BIT(DRM_MODE_BLEND_PIXEL_NONE); > + > + ret = drm_plane_create_blend_mode_property(&layer->plane, blend_modes); > + if (ret) { > + dev_err(drm->dev, "Couldn't add blend mode property\n"); > + return ERR_PTR(ret); > + } > + > ret = drm_plane_create_zpos_property(&layer->plane, channel, > 0, plane_cnt - 1); > if (ret) { > diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_layer.h > b/drivers/gpu/drm/sun4i/sun8i_ui_layer.h index 43c48cf7bc51..bd3c30e8058d > 100644 > --- a/drivers/gpu/drm/sun4i/sun8i_ui_layer.h > +++ b/drivers/gpu/drm/sun4i/sun8i_ui_layer.h > @@ -46,6 +46,11 @@ > #define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MODE_LAYER ((1) << 1) > #define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_ALPHA_MODE_COMBINED ((2) << 1) > > +#define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_BLEND_MASK GENMASK(17, 16) > +#define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_BLEND_COVERAGE ((0) << 16) > +#define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_BLEND_COV2PREM ((1) << 16) > +#define SUN8I_MIXER_CHAN_UI_LAYER_ATTR_BLEND_PREMULTI ((2) << 16) > + > struct sun8i_mixer; > > struct sun8i_ui_layer { > diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c > b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c index 662ba1018cc4..6581fc7d9668 > 100644 > --- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c > +++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c > @@ -52,21 +52,38 @@ static void sun8i_vi_layer_enable(struct sun8i_mixer > *mixer, int channel, } > > static void sun8i_vi_layer_update_alpha(struct sun8i_mixer *mixer, int > channel, - int overlay, struct drm_plane *plane) > + int overlay, struct drm_plane *plane, > + unsigned int zpos, bool force_premulti) > { > - u32 mask, val, ch_base; > + u32 mask, val, ch_base, bld_base; > + bool in_premulti = false, out_premulti = false; > > ch_base = sun8i_channel_base(mixer, channel); > + bld_base = sun8i_blender_base(mixer); > > if (mixer->cfg->is_de3) { > + in_premulti = plane->state->pixel_blend_mode == DRM_MODE_BLEND_PREMULTI; > + out_premulti = force_premulti || in_premulti; > + > mask = SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MASK | > - SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MODE_MASK; > + SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MODE_MASK | > + SUN50I_MIXER_CHAN_VI_LAYER_ATTR_BLEND_MASK; > val = SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA > (plane->state->alpha >> 8); > > - val |= (plane->state->alpha == DRM_BLEND_ALPHA_OPAQUE) ? > - SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MODE_PIXEL : > - SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MODE_COMBINED; > + if (plane->state->pixel_blend_mode == DRM_MODE_BLEND_PIXEL_NONE) { > + val |= SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MODE_LAYER; > + } else { > + val |= (plane->state->alpha == DRM_BLEND_ALPHA_OPAQUE) ? > + SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MODE_PIXEL : > + SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MODE_COMBINED; > + > + if (in_premulti) > + val |= SUN50I_MIXER_CHAN_VI_LAYER_ATTR_BLEND_PREMULTI; > + } > + > + if (!in_premulti && out_premulti) > + val |= SUN50I_MIXER_CHAN_VI_LAYER_ATTR_BLEND_COV2PREM; > > regmap_update_bits(mixer->engine.regs, > SUN8I_MIXER_CHAN_VI_LAYER_ATTR(ch_base, > @@ -79,6 +96,11 @@ static void sun8i_vi_layer_update_alpha(struct > sun8i_mixer *mixer, int channel, SUN8I_MIXER_FCC_GLOBAL_ALPHA > (plane->state->alpha >> 8)); > } > + > + regmap_update_bits( > + mixer->engine.regs, SUN8I_MIXER_BLEND_PREMULTIPLY(bld_base), > + SUN8I_MIXER_BLEND_PREMULTIPLY_EN(zpos), > + out_premulti ? SUN8I_MIXER_BLEND_PREMULTIPLY_EN(zpos) : 0); Shouldn't be above block inside DE3 if block? Looks good otherwise. Best regards, Jernej > } > > static int sun8i_vi_layer_update_coord(struct sun8i_mixer *mixer, int > channel, @@ -408,7 +430,7 @@ static void > sun8i_vi_layer_atomic_update(struct drm_plane *plane, > sun8i_vi_layer_update_coord(mixer, layer->channel, > layer->overlay, plane, zpos); > sun8i_vi_layer_update_alpha(mixer, layer->channel, > - layer->overlay, plane); > + layer->overlay, plane, zpos, false); > sun8i_vi_layer_update_formats(mixer, layer->channel, > layer->overlay, plane); > sun8i_vi_layer_update_buffer(mixer, layer->channel, > @@ -563,6 +585,19 @@ struct sun8i_vi_layer *sun8i_vi_layer_init_one(struct > drm_device *drm, } > } > > + if (mixer->cfg->is_de3) { > + unsigned int blend_modes = BIT(DRM_MODE_BLEND_PREMULTI) | > + BIT(DRM_MODE_BLEND_COVERAGE) | > + BIT(DRM_MODE_BLEND_PIXEL_NONE); > + > + ret = drm_plane_create_blend_mode_property(&layer- >plane, > + blend_modes); > + if (ret) { > + dev_err(drm->dev, "Couldn't add blend mode property\n"); > + return ERR_PTR(ret); > + } > + } > + > ret = drm_plane_create_zpos_property(&layer->plane, index, > 0, plane_cnt - 1); > if (ret) { > diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.h > b/drivers/gpu/drm/sun4i/sun8i_vi_layer.h index 9939a4cc7a52..ccf91f09f1fe > 100644 > --- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.h > +++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.h > @@ -44,6 +44,11 @@ > #define SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MASK GENMASK(31, 24) > #define SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA(x) ((x) << 24) > > +#define SUN50I_MIXER_CHAN_VI_LAYER_ATTR_BLEND_MASK GENMASK(17, 16) > +#define SUN50I_MIXER_CHAN_VI_LAYER_ATTR_BLEND_COVERAGE ((0) << 16) > +#define SUN50I_MIXER_CHAN_VI_LAYER_ATTR_BLEND_COV2PREM ((1) << 16) > +#define SUN50I_MIXER_CHAN_VI_LAYER_ATTR_BLEND_PREMULTI ((2) << 16) > + > #define SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MODE_PIXEL ((0) << 1) > #define SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MODE_LAYER ((1) << 1) > #define SUN50I_MIXER_CHAN_VI_LAYER_ATTR_ALPHA_MODE_COMBINED ((2) << 1)