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 --- drivers/gpu/drm/imx/imx-drm-core.c | 1 + drivers/gpu/drm/imx/ipuv3-plane.c | 55 ++++++++++++++++++++++++++++++++++---- 2 files changed, 51 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c index 50add2f9e250..d21e7db95979 100644 --- a/drivers/gpu/drm/imx/imx-drm-core.c +++ b/drivers/gpu/drm/imx/imx-drm-core.c @@ -266,6 +266,7 @@ 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 705ca93847ff..44593dd6ba31 100644 --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ b/drivers/gpu/drm/imx/ipuv3-plane.c @@ -527,7 +527,7 @@ static void ipu_plane_atomic_update(struct drm_plane *plane, drm_rect_height(&state->src) >> 16, state->fb->pitches[0], state->fb->format->format, - 0, + state->fb->modifier, &eba); }
@@ -673,17 +673,62 @@ int ipu_planes_assign_pre(struct drm_device *dev, struct drm_atomic_state *state) { struct drm_plane_state *plane_state; + struct ipu_plane_state *ipu_state; + struct ipu_plane *ipu_plane; struct drm_plane *plane; int available_pres = ipu_prg_max_active_channels(); int i;
+ /* + * 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_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; + + 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_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; + + /* 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)) {