mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-19 08:26:53 +07:00
e6fc3b6855
This is the plumbing for supporting fb modifiers on planes. Modifiers have already been introduced to some extent, but this series will extend this to allow querying modifiers per plane. Based on this, the client to enable optimal modifications for framebuffers. This patch simply allows the DRM drivers to initialize their list of supported modifiers upon initializing the plane. v2: A minor addition from Daniel v3: * Updated commit message * s/INVALID/DRM_FORMAT_MOD_INVALID (Liviu) * Remove some excess newlines (Liviu) * Update comment for > 64 modifiers (Liviu) v4: Minor comment adjustments (Liviu) v5: Some new platforms added due to rebase v6: Add some missed plane inits (or maybe they're new - who knows at this point) (Daniel) Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Reviewed-by: Daniel Stone <daniels@collabora.com> (v2) Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Daniel Stone <daniels@collabora.com>
135 lines
3.8 KiB
C
135 lines
3.8 KiB
C
/*
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* Copyright (C) Icenowy Zheng <icenowy@aosc.io>
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*
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* Based on sun4i_layer.h, which is:
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* Copyright (C) 2015 Free Electrons
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* Copyright (C) 2015 NextThing Co
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*
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* Maxime Ripard <maxime.ripard@free-electrons.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*/
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_plane_helper.h>
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#include <drm/drmP.h>
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#include "sun8i_layer.h"
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#include "sun8i_mixer.h"
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struct sun8i_plane_desc {
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enum drm_plane_type type;
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const uint32_t *formats;
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uint32_t nformats;
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};
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static void sun8i_mixer_layer_atomic_disable(struct drm_plane *plane,
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struct drm_plane_state *old_state)
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{
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struct sun8i_layer *layer = plane_to_sun8i_layer(plane);
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struct sun8i_mixer *mixer = layer->mixer;
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sun8i_mixer_layer_enable(mixer, layer->id, false);
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}
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static void sun8i_mixer_layer_atomic_update(struct drm_plane *plane,
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struct drm_plane_state *old_state)
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{
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struct sun8i_layer *layer = plane_to_sun8i_layer(plane);
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struct sun8i_mixer *mixer = layer->mixer;
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sun8i_mixer_update_layer_coord(mixer, layer->id, plane);
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sun8i_mixer_update_layer_formats(mixer, layer->id, plane);
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sun8i_mixer_update_layer_buffer(mixer, layer->id, plane);
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sun8i_mixer_layer_enable(mixer, layer->id, true);
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}
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static struct drm_plane_helper_funcs sun8i_mixer_layer_helper_funcs = {
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.atomic_disable = sun8i_mixer_layer_atomic_disable,
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.atomic_update = sun8i_mixer_layer_atomic_update,
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};
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static const struct drm_plane_funcs sun8i_mixer_layer_funcs = {
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.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
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.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
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.destroy = drm_plane_cleanup,
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.disable_plane = drm_atomic_helper_disable_plane,
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.reset = drm_atomic_helper_plane_reset,
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.update_plane = drm_atomic_helper_update_plane,
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};
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static const uint32_t sun8i_mixer_layer_formats[] = {
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DRM_FORMAT_RGB888,
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DRM_FORMAT_ARGB8888,
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DRM_FORMAT_XRGB8888,
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};
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static const struct sun8i_plane_desc sun8i_mixer_planes[] = {
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{
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.type = DRM_PLANE_TYPE_PRIMARY,
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.formats = sun8i_mixer_layer_formats,
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.nformats = ARRAY_SIZE(sun8i_mixer_layer_formats),
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},
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};
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static struct sun8i_layer *sun8i_layer_init_one(struct drm_device *drm,
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struct sun8i_mixer *mixer,
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const struct sun8i_plane_desc *plane)
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{
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struct sun8i_layer *layer;
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int ret;
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layer = devm_kzalloc(drm->dev, sizeof(*layer), GFP_KERNEL);
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if (!layer)
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return ERR_PTR(-ENOMEM);
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/* possible crtcs are set later */
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ret = drm_universal_plane_init(drm, &layer->plane, 0,
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&sun8i_mixer_layer_funcs,
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plane->formats, plane->nformats,
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NULL, plane->type, NULL);
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if (ret) {
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dev_err(drm->dev, "Couldn't initialize layer\n");
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return ERR_PTR(ret);
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}
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drm_plane_helper_add(&layer->plane,
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&sun8i_mixer_layer_helper_funcs);
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layer->mixer = mixer;
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return layer;
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}
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struct drm_plane **sun8i_layers_init(struct drm_device *drm,
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struct sunxi_engine *engine)
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{
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struct drm_plane **planes;
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struct sun8i_mixer *mixer = engine_to_sun8i_mixer(engine);
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int i;
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planes = devm_kcalloc(drm->dev, ARRAY_SIZE(sun8i_mixer_planes) + 1,
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sizeof(*planes), GFP_KERNEL);
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if (!planes)
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return ERR_PTR(-ENOMEM);
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for (i = 0; i < ARRAY_SIZE(sun8i_mixer_planes); i++) {
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const struct sun8i_plane_desc *plane = &sun8i_mixer_planes[i];
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struct sun8i_layer *layer;
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layer = sun8i_layer_init_one(drm, mixer, plane);
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if (IS_ERR(layer)) {
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dev_err(drm->dev, "Couldn't initialize %s plane\n",
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i ? "overlay" : "primary");
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return ERR_CAST(layer);
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};
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layer->id = i;
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planes[i] = &layer->plane;
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};
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return planes;
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}
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