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drm/imx: add FB modifier support
This adds FB modifier support for the Vivante single buffer tiled formats, when the PRG/PRE engines are present. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
parent
a2ceec52d9
commit
9222f768f7
2 changed files with 60 additions and 6 deletions
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@ -272,6 +272,7 @@ static int imx_drm_bind(struct device *dev)
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drm->mode_config.max_height = 4096;
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drm->mode_config.funcs = &imx_drm_mode_config_funcs;
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drm->mode_config.helper_private = &imx_drm_mode_config_helpers;
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drm->mode_config.allow_fb_modifiers = true;
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drm_mode_config_init(drm);
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@ -551,7 +551,7 @@ static void ipu_plane_atomic_update(struct drm_plane *plane,
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drm_rect_width(&state->src) >> 16,
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drm_rect_height(&state->src) >> 16,
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fb->pitches[0], fb->format->format,
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0, &eba);
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fb->modifier, &eba);
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}
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if (old_state->fb && !drm_atomic_crtc_needs_modeset(crtc_state)) {
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@ -700,18 +700,71 @@ static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = {
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int ipu_planes_assign_pre(struct drm_device *dev,
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struct drm_atomic_state *state)
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{
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struct drm_crtc_state *old_crtc_state, *crtc_state;
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struct drm_plane_state *plane_state;
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struct ipu_plane_state *ipu_state;
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struct ipu_plane *ipu_plane;
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struct drm_plane *plane;
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struct drm_crtc *crtc;
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int available_pres = ipu_prg_max_active_channels();
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int i;
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int ret, i;
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for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, crtc_state, i) {
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ret = drm_atomic_add_affected_planes(state, crtc);
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if (ret)
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return ret;
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}
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/*
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* We are going over the planes in 2 passes: first we assign PREs to
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* planes with a tiling modifier, which need the PREs to resolve into
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* linear. Any failure to assign a PRE there is fatal. In the second
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* pass we try to assign PREs to linear FBs, to improve memory access
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* patterns for them. Failure at this point is non-fatal, as we can
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* scan out linear FBs without a PRE.
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*/
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for_each_new_plane_in_state(state, plane, plane_state, i) {
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ipu_state = to_ipu_plane_state(plane_state);
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ipu_plane = to_ipu_plane(plane);
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if (!plane_state->fb) {
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ipu_state->use_pre = false;
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continue;
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}
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if (!(plane_state->fb->flags & DRM_MODE_FB_MODIFIERS) ||
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plane_state->fb->modifier == DRM_FORMAT_MOD_LINEAR)
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continue;
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if (!ipu_prg_present(ipu_plane->ipu) || !available_pres)
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return -EINVAL;
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if (!ipu_prg_format_supported(ipu_plane->ipu,
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plane_state->fb->format->format,
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plane_state->fb->modifier))
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return -EINVAL;
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ipu_state->use_pre = true;
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available_pres--;
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}
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for_each_new_plane_in_state(state, plane, plane_state, i) {
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struct ipu_plane_state *ipu_state =
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to_ipu_plane_state(plane_state);
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struct ipu_plane *ipu_plane = to_ipu_plane(plane);
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ipu_state = to_ipu_plane_state(plane_state);
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ipu_plane = to_ipu_plane(plane);
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if (!plane_state->fb) {
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ipu_state->use_pre = false;
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continue;
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}
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if ((plane_state->fb->flags & DRM_MODE_FB_MODIFIERS) &&
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plane_state->fb->modifier != DRM_FORMAT_MOD_LINEAR)
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continue;
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/* make sure that modifier is initialized */
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plane_state->fb->modifier = DRM_FORMAT_MOD_LINEAR;
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if (ipu_prg_present(ipu_plane->ipu) && available_pres &&
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plane_state->fb &&
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ipu_prg_format_supported(ipu_plane->ipu,
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plane_state->fb->format->format,
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plane_state->fb->modifier)) {
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