From 9222f768f7b09fea4f12914b376ec975ef758a60 Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Fri, 10 Nov 2017 17:10:00 +0100 Subject: [PATCH] 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 Signed-off-by: Philipp Zabel --- drivers/gpu/drm/imx/imx-drm-core.c | 1 + drivers/gpu/drm/imx/ipuv3-plane.c | 65 +++++++++++++++++++++++++++--- 2 files changed, 60 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c index 17d2f3a1c562..1887a668c55e 100644 --- a/drivers/gpu/drm/imx/imx-drm-core.c +++ b/drivers/gpu/drm/imx/imx-drm-core.c @@ -272,6 +272,7 @@ static int imx_drm_bind(struct device *dev) drm->mode_config.max_height = 4096; drm->mode_config.funcs = &imx_drm_mode_config_funcs; drm->mode_config.helper_private = &imx_drm_mode_config_helpers; + drm->mode_config.allow_fb_modifiers = true; drm_mode_config_init(drm); diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c index 091393cb9659..32a6debf7107 100644 --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3-plane.c @@ -551,7 +551,7 @@ static void ipu_plane_atomic_update(struct drm_plane *plane, drm_rect_width(&state->src) >> 16, drm_rect_height(&state->src) >> 16, fb->pitches[0], fb->format->format, - 0, &eba); + fb->modifier, &eba); } if (old_state->fb && !drm_atomic_crtc_needs_modeset(crtc_state)) { @@ -700,18 +700,71 @@ static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = { int ipu_planes_assign_pre(struct drm_device *dev, struct drm_atomic_state *state) { + struct drm_crtc_state *old_crtc_state, *crtc_state; struct drm_plane_state *plane_state; + struct ipu_plane_state *ipu_state; + struct ipu_plane *ipu_plane; struct drm_plane *plane; + struct drm_crtc *crtc; int available_pres = ipu_prg_max_active_channels(); - int i; + int ret, i; + + for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, crtc_state, i) { + ret = drm_atomic_add_affected_planes(state, crtc); + if (ret) + return ret; + } + + /* + * We are going over the planes in 2 passes: first we assign PREs to + * planes with a tiling modifier, which need the PREs to resolve into + * linear. Any failure to assign a PRE there is fatal. In the second + * pass we try to assign PREs to linear FBs, to improve memory access + * patterns for them. Failure at this point is non-fatal, as we can + * scan out linear FBs without a PRE. + */ + for_each_new_plane_in_state(state, plane, plane_state, i) { + ipu_state = to_ipu_plane_state(plane_state); + ipu_plane = to_ipu_plane(plane); + + if (!plane_state->fb) { + ipu_state->use_pre = false; + continue; + } + + if (!(plane_state->fb->flags & DRM_MODE_FB_MODIFIERS) || + plane_state->fb->modifier == DRM_FORMAT_MOD_LINEAR) + continue; + + if (!ipu_prg_present(ipu_plane->ipu) || !available_pres) + return -EINVAL; + + if (!ipu_prg_format_supported(ipu_plane->ipu, + plane_state->fb->format->format, + plane_state->fb->modifier)) + return -EINVAL; + + ipu_state->use_pre = true; + available_pres--; + } for_each_new_plane_in_state(state, plane, plane_state, i) { - struct ipu_plane_state *ipu_state = - to_ipu_plane_state(plane_state); - struct ipu_plane *ipu_plane = to_ipu_plane(plane); + ipu_state = to_ipu_plane_state(plane_state); + ipu_plane = to_ipu_plane(plane); + + if (!plane_state->fb) { + ipu_state->use_pre = false; + continue; + } + + if ((plane_state->fb->flags & DRM_MODE_FB_MODIFIERS) && + plane_state->fb->modifier != DRM_FORMAT_MOD_LINEAR) + continue; + + /* make sure that modifier is initialized */ + plane_state->fb->modifier = DRM_FORMAT_MOD_LINEAR; if (ipu_prg_present(ipu_plane->ipu) && available_pres && - plane_state->fb && ipu_prg_format_supported(ipu_plane->ipu, plane_state->fb->format->format, plane_state->fb->modifier)) { -- 2.30.2