drm/sun4i: Start using layer id in DE2 driver

Till now, plane selection was hardcoded to first overlay in first UI
channel and layer parameter is unused.

Rename and add parameters to layer functions so they would represent HW
more accurately and start using then.

It turns out that overlays don't fit well in current DRM design, because
they can't be blended together or scaled independetly when they are set
to same channel. Because of that, always use only first overlay in each
channel.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171201060550.10392-11-jernej.skrabec@siol.net

diff --git a/drivers/gpu/drm/sun4i/sun8i_layer.c b/drivers/gpu/drm/sun4i/sun8i_layer.c
index 23810ff7268412a87edb449a6ac6e559ce5f0cb3..5aa6e2c9728e59a82061741fc266ad22f863ab79 100644 (file)
--- a/drivers/gpu/drm/sun4i/sun8i_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_layer.c
@@ -32,7 +32,8 @@ static void sun8i_mixer_layer_atomic_disable(struct drm_plane *plane,
        struct sun8i_layer *layer = plane_to_sun8i_layer(plane);
        struct sun8i_mixer *mixer = layer->mixer;
 
-       sun8i_mixer_layer_enable(mixer, layer->id, false);
+       sun8i_mixer_layer_enable(mixer, layer->channel,
+                                layer->overlay, false);
 }
 
 static void sun8i_mixer_layer_atomic_update(struct drm_plane *plane,
@@ -41,10 +42,14 @@ static void sun8i_mixer_layer_atomic_update(struct drm_plane *plane,
        struct sun8i_layer *layer = plane_to_sun8i_layer(plane);
        struct sun8i_mixer *mixer = layer->mixer;
 
-       sun8i_mixer_update_layer_coord(mixer, layer->id, plane);
-       sun8i_mixer_update_layer_formats(mixer, layer->id, plane);
-       sun8i_mixer_update_layer_buffer(mixer, layer->id, plane);
-       sun8i_mixer_layer_enable(mixer, layer->id, true);
+       sun8i_mixer_update_layer_coord(mixer, layer->channel,
+                                      layer->overlay, plane);
+       sun8i_mixer_update_layer_formats(mixer, layer->channel,
+                                        layer->overlay, plane);
+       sun8i_mixer_update_layer_buffer(mixer, layer->channel,
+                                       layer->overlay, plane);
+       sun8i_mixer_layer_enable(mixer, layer->channel,
+                                layer->overlay, true);
 }
 
 static struct drm_plane_helper_funcs sun8i_mixer_layer_helper_funcs = {
@@ -126,7 +131,8 @@ struct drm_plane **sun8i_layers_init(struct drm_device *drm,
                        return ERR_CAST(layer);
                };
 
-               layer->id = i;
+               layer->channel = mixer->cfg->vi_num + i;
+               layer->overlay = 0;
                planes[i] = &layer->plane;
        };
 

diff --git a/drivers/gpu/drm/sun4i/sun8i_layer.h b/drivers/gpu/drm/sun4i/sun8i_layer.h
index e5eccd27cff0577ab7ac92afac39aebe10a59141..d246e0dd3d48abc72db85f1a180eccaea4ad13d9 100644 (file)
--- a/drivers/gpu/drm/sun4i/sun8i_layer.h
+++ b/drivers/gpu/drm/sun4i/sun8i_layer.h
@@ -22,7 +22,8 @@ struct sun8i_layer {
        struct drm_plane        plane;
        struct sun4i_drv        *drv;
        struct sun8i_mixer      *mixer;
-       int                     id;
+       int                     channel;
+       int                     overlay;
 };
 
 static inline struct sun8i_layer *

diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
index 015943c0ed5a5cad756da5cd724e8e686afdef92..2bf7ba1e5ba7bd2e4e1f3f069349047fa18d8f28 100644 (file)
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
@@ -37,15 +37,13 @@ static void sun8i_mixer_commit(struct sunxi_engine *engine)
                     SUN8I_MIXER_GLOBAL_DBUFF_ENABLE);
 }
 
-void sun8i_mixer_layer_enable(struct sun8i_mixer *mixer,
-                               int layer, bool enable)
+void sun8i_mixer_layer_enable(struct sun8i_mixer *mixer, int channel,
+                             int overlay, bool enable)
 {
        u32 val;
-       /* Currently the first UI channel is used */
-       int chan = mixer->cfg->vi_num;
 
-       DRM_DEBUG_DRIVER("%sabling layer %d in channel %d\n",
-                        enable ? "En" : "Dis", layer, chan);
+       DRM_DEBUG_DRIVER("%sabling channel %d overlay %d\n",
+                        enable ? "En" : "Dis", channel, overlay);
 
        if (enable)
                val = SUN8I_MIXER_CHAN_UI_LAYER_ATTR_EN;
@@ -53,17 +51,17 @@ void sun8i_mixer_layer_enable(struct sun8i_mixer *mixer,
                val = 0;
 
        regmap_update_bits(mixer->engine.regs,
-                          SUN8I_MIXER_CHAN_UI_LAYER_ATTR(chan, layer),
+                          SUN8I_MIXER_CHAN_UI_LAYER_ATTR(channel, overlay),
                           SUN8I_MIXER_CHAN_UI_LAYER_ATTR_EN, val);
 
        if (enable)
-               val = SUN8I_MIXER_BLEND_PIPE_CTL_EN(chan);
+               val = SUN8I_MIXER_BLEND_PIPE_CTL_EN(channel);
        else
                val = 0;
 
        regmap_update_bits(mixer->engine.regs,
                           SUN8I_MIXER_BLEND_PIPE_CTL,
-                          SUN8I_MIXER_BLEND_PIPE_CTL_EN(chan), val);
+                          SUN8I_MIXER_BLEND_PIPE_CTL_EN(channel), val);
 }
 
 static int sun8i_mixer_drm_format_to_layer(struct drm_plane *plane,
@@ -89,15 +87,13 @@ static int sun8i_mixer_drm_format_to_layer(struct drm_plane *plane,
        return 0;
 }
 
-int sun8i_mixer_update_layer_coord(struct sun8i_mixer *mixer,
-                                    int layer, struct drm_plane *plane)
+int sun8i_mixer_update_layer_coord(struct sun8i_mixer *mixer, int channel,
+                                  int overlay, struct drm_plane *plane)
 {
        struct drm_plane_state *state = plane->state;
        struct drm_framebuffer *fb = state->fb;
-       /* Currently the first UI channel is used */
-       int chan = mixer->cfg->vi_num;
 
-       DRM_DEBUG_DRIVER("Updating layer %d\n", layer);
+       DRM_DEBUG_DRIVER("Updating channel %d overlay %d\n", channel, overlay);
 
        if (plane->type == DRM_PLANE_TYPE_PRIMARY) {
                DRM_DEBUG_DRIVER("Primary layer, updating global size W: %u H: %u\n",
@@ -107,7 +103,7 @@ int sun8i_mixer_update_layer_coord(struct sun8i_mixer *mixer,
                                              state->crtc_h));
                DRM_DEBUG_DRIVER("Updating blender size\n");
                regmap_write(mixer->engine.regs,
-                            SUN8I_MIXER_BLEND_ATTR_INSIZE(chan),
+                            SUN8I_MIXER_BLEND_ATTR_INSIZE(channel),
                             SUN8I_MIXER_SIZE(state->crtc_w,
                                              state->crtc_h));
                regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_OUTSIZE,
@@ -115,7 +111,7 @@ int sun8i_mixer_update_layer_coord(struct sun8i_mixer *mixer,
                                              state->crtc_h));
                DRM_DEBUG_DRIVER("Updating channel size\n");
                regmap_write(mixer->engine.regs,
-                            SUN8I_MIXER_CHAN_UI_OVL_SIZE(chan),
+                            SUN8I_MIXER_CHAN_UI_OVL_SIZE(channel),
                             SUN8I_MIXER_SIZE(state->crtc_w,
                                              state->crtc_h));
        }
@@ -123,35 +119,33 @@ int sun8i_mixer_update_layer_coord(struct sun8i_mixer *mixer,
        /* Set the line width */
        DRM_DEBUG_DRIVER("Layer line width: %d bytes\n", fb->pitches[0]);
        regmap_write(mixer->engine.regs,
-                    SUN8I_MIXER_CHAN_UI_LAYER_PITCH(chan, layer),
+                    SUN8I_MIXER_CHAN_UI_LAYER_PITCH(channel, overlay),
                     fb->pitches[0]);
 
        /* Set height and width */
        DRM_DEBUG_DRIVER("Layer size W: %u H: %u\n",
                         state->crtc_w, state->crtc_h);
        regmap_write(mixer->engine.regs,
-                    SUN8I_MIXER_CHAN_UI_LAYER_SIZE(chan, layer),
+                    SUN8I_MIXER_CHAN_UI_LAYER_SIZE(channel, overlay),
                     SUN8I_MIXER_SIZE(state->crtc_w, state->crtc_h));
 
        /* Set base coordinates */
        DRM_DEBUG_DRIVER("Layer coordinates X: %d Y: %d\n",
                         state->crtc_x, state->crtc_y);
        regmap_write(mixer->engine.regs,
-                    SUN8I_MIXER_CHAN_UI_LAYER_COORD(chan, layer),
+                    SUN8I_MIXER_BLEND_ATTR_COORD(channel),
                     SUN8I_MIXER_COORD(state->crtc_x, state->crtc_y));
 
        return 0;
 }
 
-int sun8i_mixer_update_layer_formats(struct sun8i_mixer *mixer,
-                                      int layer, struct drm_plane *plane)
+int sun8i_mixer_update_layer_formats(struct sun8i_mixer *mixer, int channel,
+                                    int overlay, struct drm_plane *plane)
 {
        struct drm_plane_state *state = plane->state;
        struct drm_framebuffer *fb = state->fb;
        bool interlaced = false;
        u32 val;
-       /* Currently the first UI channel is used */
-       int chan = mixer->cfg->vi_num;
        int ret;
 
        if (plane->state->crtc)
@@ -175,21 +169,19 @@ int sun8i_mixer_update_layer_formats(struct sun8i_mixer *mixer,
 
        val <<= SUN8I_MIXER_CHAN_UI_LAYER_ATTR_FBFMT_OFFSET;
        regmap_update_bits(mixer->engine.regs,
-                          SUN8I_MIXER_CHAN_UI_LAYER_ATTR(chan, layer),
+                          SUN8I_MIXER_CHAN_UI_LAYER_ATTR(channel, overlay),
                           SUN8I_MIXER_CHAN_UI_LAYER_ATTR_FBFMT_MASK, val);
 
        return 0;
 }
 
-int sun8i_mixer_update_layer_buffer(struct sun8i_mixer *mixer,
-                                     int layer, struct drm_plane *plane)
+int sun8i_mixer_update_layer_buffer(struct sun8i_mixer *mixer, int channel,
+                                   int overlay, struct drm_plane *plane)
 {
        struct drm_plane_state *state = plane->state;
        struct drm_framebuffer *fb = state->fb;
        struct drm_gem_cma_object *gem;
        dma_addr_t paddr;
-       /* Currently the first UI channel is used */
-       int chan = mixer->cfg->vi_num;
        int bpp;
 
        /* Get the physical address of the buffer in memory */
@@ -221,7 +213,7 @@ int sun8i_mixer_update_layer_buffer(struct sun8i_mixer *mixer,
        DRM_DEBUG_DRIVER("Setting buffer address to %pad\n", &paddr);
 
        regmap_write(mixer->engine.regs,
-                    SUN8I_MIXER_CHAN_UI_LAYER_TOP_LADDR(chan, layer),
+                    SUN8I_MIXER_CHAN_UI_LAYER_TOP_LADDR(channel, overlay),
                     lower_32_bits(paddr));
 
        return 0;

diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.h b/drivers/gpu/drm/sun4i/sun8i_mixer.h
index 76f0b2bd91e264e9018c754ab5945c1ebd6adb62..70113c9ea2d157b20c1738797a79d92e8c251197 100644 (file)
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.h
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.h
@@ -123,12 +123,12 @@ engine_to_sun8i_mixer(struct sunxi_engine *engine)
        return container_of(engine, struct sun8i_mixer, engine);
 }
 
-void sun8i_mixer_layer_enable(struct sun8i_mixer *mixer,
-                               int layer, bool enable);
-int sun8i_mixer_update_layer_coord(struct sun8i_mixer *mixer,
-                                    int layer, struct drm_plane *plane);
-int sun8i_mixer_update_layer_formats(struct sun8i_mixer *mixer,
-                                      int layer, struct drm_plane *plane);
-int sun8i_mixer_update_layer_buffer(struct sun8i_mixer *mixer,
-                                     int layer, struct drm_plane *plane);
+void sun8i_mixer_layer_enable(struct sun8i_mixer *mixer, int channel,
+                             int overlay, bool enable);
+int sun8i_mixer_update_layer_coord(struct sun8i_mixer *mixer, int channel,
+                                  int overlay, struct drm_plane *plane);
+int sun8i_mixer_update_layer_formats(struct sun8i_mixer *mixer, int channel,
+                                    int overlay, struct drm_plane *plane);
+int sun8i_mixer_update_layer_buffer(struct sun8i_mixer *mixer, int channel,
+                                   int overlay, struct drm_plane *plane);
 #endif /* _SUN8I_MIXER_H_ */