| Message ID | 20180413165354.8331-4-noralf@tronnes.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Noralf, 1 comment inline. On 13-04-18 18:53, Noralf Trønnes wrote: > Getting rotation info is cheap so we can do it on demand. > > This is done in preparation for the removal of struct drm_fb_helper_crtc. > > Cc: Hans de Goede <hdegoede@redhat.com> > Signed-off-by: Noralf Trønnes <noralf@tronnes.org> > --- > drivers/gpu/drm/drm_fb_helper.c | 131 ++++++++++++++++++++-------------------- > include/drm/drm_fb_helper.h | 8 --- > 2 files changed, 65 insertions(+), 74 deletions(-) > > diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c > index 0646b108030b..e48ace2d55f5 100644 > --- a/drivers/gpu/drm/drm_fb_helper.c > +++ b/drivers/gpu/drm/drm_fb_helper.c > @@ -361,6 +361,48 @@ int drm_fb_helper_debug_leave(struct fb_info *info) > } > EXPORT_SYMBOL(drm_fb_helper_debug_leave); > > +/* Check if the plane can hw rotate to match panel orientation */ > +static bool drm_fb_helper_panel_rotation(struct drm_connector *connector, > + struct drm_plane *plane, > + unsigned int *rotation) > +{ > + uint64_t valid_mask = 0; > + unsigned int i; > + > + if (!connector) > + return false; > + > + switch (connector->display_info.panel_orientation) { > + case DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP: > + *rotation = DRM_MODE_ROTATE_180; > + break; > + case DRM_MODE_PANEL_ORIENTATION_LEFT_UP: > + *rotation = DRM_MODE_ROTATE_90; > + break; > + case DRM_MODE_PANEL_ORIENTATION_RIGHT_UP: > + *rotation = DRM_MODE_ROTATE_270; > + break; > + default: > + *rotation = DRM_MODE_ROTATE_0; > + } > + > + /* > + * TODO: support 90 / 270 degree hardware rotation, > + * depending on the hardware this may require the framebuffer > + * to be in a specific tiling format. > + */ > + if (*rotation != DRM_MODE_ROTATE_180 || !plane->rotation_property) > + return false; > + > + for (i = 0; i < plane->rotation_property->num_values; i++) > + valid_mask |= (1ULL << plane->rotation_property->values[i]); > + > + if (!(*rotation & valid_mask)) > + return false; > + > + return true; > +} > + > static int restore_fbdev_mode_atomic(struct drm_fb_helper *fb_helper, bool active) > { > struct drm_device *dev = fb_helper->dev; > @@ -406,10 +448,13 @@ static int restore_fbdev_mode_atomic(struct drm_fb_helper *fb_helper, bool activ > for (i = 0; i < fb_helper->crtc_count; i++) { > struct drm_mode_set *mode_set = &fb_helper->crtc_info[i].mode_set; > struct drm_plane *primary = mode_set->crtc->primary; > + unsigned int rotation; > > - /* Cannot fail as we've already gotten the plane state above */ > - plane_state = drm_atomic_get_new_plane_state(state, primary); > - plane_state->rotation = fb_helper->crtc_info[i].rotation; > + if (drm_fb_helper_panel_rotation(mode_set->connectors[0], primary, &rotation)) { > + /* Cannot fail as we've already gotten the plane state above */ > + plane_state = drm_atomic_get_new_plane_state(state, primary); > + plane_state->rotation = rotation; > + } We want plane_state->rotation to be set to DRM_MODE_ROTATE_0 in the else case, AFAIK new_plane_state starts with the current state and rotation may have a different value there. Otherwise this looks good to me. Regards, Hans > ret = __drm_atomic_helper_set_config(mode_set, state); > if (ret != 0) > @@ -841,7 +886,6 @@ int drm_fb_helper_init(struct drm_device *dev, > if (!fb_helper->crtc_info[i].mode_set.connectors) > goto out_free; > fb_helper->crtc_info[i].mode_set.num_connectors = 0; > - fb_helper->crtc_info[i].rotation = DRM_MODE_ROTATE_0; > } > > i = 0; > @@ -2414,62 +2458,6 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper, > return best_score; > } > > -/* > - * This function checks if rotation is necessary because of panel orientation > - * and if it is, if it is supported. > - * If rotation is necessary and supported, its gets set in fb_crtc.rotation. > - * If rotation is necessary but not supported, a DRM_MODE_ROTATE_* flag gets > - * or-ed into fb_helper->sw_rotations. In drm_setup_crtcs_fb() we check if only > - * one bit is set and then we set fb_info.fbcon_rotate_hint to make fbcon do > - * the unsupported rotation. > - */ > -static void drm_setup_crtc_rotation(struct drm_fb_helper *fb_helper, > - struct drm_fb_helper_crtc *fb_crtc, > - struct drm_connector *connector) > -{ > - struct drm_plane *plane = fb_crtc->mode_set.crtc->primary; > - uint64_t valid_mask = 0; > - int i, rotation; > - > - fb_crtc->rotation = DRM_MODE_ROTATE_0; > - > - switch (connector->display_info.panel_orientation) { > - case DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP: > - rotation = DRM_MODE_ROTATE_180; > - break; > - case DRM_MODE_PANEL_ORIENTATION_LEFT_UP: > - rotation = DRM_MODE_ROTATE_90; > - break; > - case DRM_MODE_PANEL_ORIENTATION_RIGHT_UP: > - rotation = DRM_MODE_ROTATE_270; > - break; > - default: > - rotation = DRM_MODE_ROTATE_0; > - } > - > - /* > - * TODO: support 90 / 270 degree hardware rotation, > - * depending on the hardware this may require the framebuffer > - * to be in a specific tiling format. > - */ > - if (rotation != DRM_MODE_ROTATE_180 || !plane->rotation_property) { > - fb_helper->sw_rotations |= rotation; > - return; > - } > - > - for (i = 0; i < plane->rotation_property->num_values; i++) > - valid_mask |= (1ULL << plane->rotation_property->values[i]); > - > - if (!(rotation & valid_mask)) { > - fb_helper->sw_rotations |= rotation; > - return; > - } > - > - fb_crtc->rotation = rotation; > - /* Rotating in hardware, fbcon should not rotate */ > - fb_helper->sw_rotations |= DRM_MODE_ROTATE_0; > -} > - > static void drm_setup_crtcs(struct drm_fb_helper *fb_helper, > u32 width, u32 height) > { > @@ -2529,7 +2517,6 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper, > drm_fb_helper_modeset_release(fb_helper, > &fb_helper->crtc_info[i].mode_set); > > - fb_helper->sw_rotations = 0; > drm_fb_helper_for_each_connector(fb_helper, i) { > struct drm_display_mode *mode = modes[i]; > struct drm_fb_helper_crtc *fb_crtc = crtcs[i]; > @@ -2549,7 +2536,6 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper, > modeset->mode = drm_mode_duplicate(dev, > fb_crtc->desired_mode); > drm_connector_get(connector); > - drm_setup_crtc_rotation(fb_helper, fb_crtc, connector); > modeset->connectors[modeset->num_connectors++] = connector; > modeset->x = offset->x; > modeset->y = offset->y; > @@ -2572,11 +2558,24 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper, > static void drm_setup_crtcs_fb(struct drm_fb_helper *fb_helper) > { > struct fb_info *info = fb_helper->fbdev; > + unsigned int rotation, sw_rotations = 0; > int i; > > - for (i = 0; i < fb_helper->crtc_count; i++) > - if (fb_helper->crtc_info[i].mode_set.num_connectors) > - fb_helper->crtc_info[i].mode_set.fb = fb_helper->fb; > + for (i = 0; i < fb_helper->crtc_count; i++) { > + struct drm_mode_set *modeset = &fb_helper->crtc_info[i].mode_set; > + > + if (!modeset->num_connectors) > + continue; > + > + modeset->fb = fb_helper->fb; > + > + if (drm_fb_helper_panel_rotation(modeset->connectors[0], > + modeset->crtc->primary, &rotation)) > + /* Rotating in hardware, fbcon should not rotate */ > + sw_rotations |= DRM_MODE_ROTATE_0; > + else > + sw_rotations |= rotation; > + } > > mutex_lock(&fb_helper->dev->mode_config.mutex); > drm_fb_helper_for_each_connector(fb_helper, i) { > @@ -2592,7 +2591,7 @@ static void drm_setup_crtcs_fb(struct drm_fb_helper *fb_helper) > } > mutex_unlock(&fb_helper->dev->mode_config.mutex); > > - switch (fb_helper->sw_rotations) { > + switch (sw_rotations) { > case DRM_MODE_ROTATE_0: > info->fbcon_rotate_hint = FB_ROTATE_UR; > break; > diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h > index b069433e7fc1..d1e45c832cd5 100644 > --- a/include/drm/drm_fb_helper.h > +++ b/include/drm/drm_fb_helper.h > @@ -49,7 +49,6 @@ struct drm_fb_helper_crtc { > struct drm_mode_set mode_set; > struct drm_display_mode *desired_mode; > int x, y; > - int rotation; > }; > > /** > @@ -160,13 +159,6 @@ struct drm_fb_helper { > struct drm_fb_helper_crtc *crtc_info; > int connector_count; > int connector_info_alloc_count; > - /** > - * @sw_rotations: > - * Bitmask of all rotations requested for panel-orientation which > - * could not be handled in hardware. If only one bit is set > - * fbdev->fbcon_rotate_hint gets set to the requested rotation. > - */ > - int sw_rotations; > /** > * @connector_info: > * >
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 0646b108030b..e48ace2d55f5 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -361,6 +361,48 @@ int drm_fb_helper_debug_leave(struct fb_info *info) } EXPORT_SYMBOL(drm_fb_helper_debug_leave); +/* Check if the plane can hw rotate to match panel orientation */ +static bool drm_fb_helper_panel_rotation(struct drm_connector *connector, + struct drm_plane *plane, + unsigned int *rotation) +{ + uint64_t valid_mask = 0; + unsigned int i; + + if (!connector) + return false; + + switch (connector->display_info.panel_orientation) { + case DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP: + *rotation = DRM_MODE_ROTATE_180; + break; + case DRM_MODE_PANEL_ORIENTATION_LEFT_UP: + *rotation = DRM_MODE_ROTATE_90; + break; + case DRM_MODE_PANEL_ORIENTATION_RIGHT_UP: + *rotation = DRM_MODE_ROTATE_270; + break; + default: + *rotation = DRM_MODE_ROTATE_0; + } + + /* + * TODO: support 90 / 270 degree hardware rotation, + * depending on the hardware this may require the framebuffer + * to be in a specific tiling format. + */ + if (*rotation != DRM_MODE_ROTATE_180 || !plane->rotation_property) + return false; + + for (i = 0; i < plane->rotation_property->num_values; i++) + valid_mask |= (1ULL << plane->rotation_property->values[i]); + + if (!(*rotation & valid_mask)) + return false; + + return true; +} + static int restore_fbdev_mode_atomic(struct drm_fb_helper *fb_helper, bool active) { struct drm_device *dev = fb_helper->dev; @@ -406,10 +448,13 @@ static int restore_fbdev_mode_atomic(struct drm_fb_helper *fb_helper, bool activ for (i = 0; i < fb_helper->crtc_count; i++) { struct drm_mode_set *mode_set = &fb_helper->crtc_info[i].mode_set; struct drm_plane *primary = mode_set->crtc->primary; + unsigned int rotation; - /* Cannot fail as we've already gotten the plane state above */ - plane_state = drm_atomic_get_new_plane_state(state, primary); - plane_state->rotation = fb_helper->crtc_info[i].rotation; + if (drm_fb_helper_panel_rotation(mode_set->connectors[0], primary, &rotation)) { + /* Cannot fail as we've already gotten the plane state above */ + plane_state = drm_atomic_get_new_plane_state(state, primary); + plane_state->rotation = rotation; + } ret = __drm_atomic_helper_set_config(mode_set, state); if (ret != 0) @@ -841,7 +886,6 @@ int drm_fb_helper_init(struct drm_device *dev, if (!fb_helper->crtc_info[i].mode_set.connectors) goto out_free; fb_helper->crtc_info[i].mode_set.num_connectors = 0; - fb_helper->crtc_info[i].rotation = DRM_MODE_ROTATE_0; } i = 0; @@ -2414,62 +2458,6 @@ static int drm_pick_crtcs(struct drm_fb_helper *fb_helper, return best_score; } -/* - * This function checks if rotation is necessary because of panel orientation - * and if it is, if it is supported. - * If rotation is necessary and supported, its gets set in fb_crtc.rotation. - * If rotation is necessary but not supported, a DRM_MODE_ROTATE_* flag gets - * or-ed into fb_helper->sw_rotations. In drm_setup_crtcs_fb() we check if only - * one bit is set and then we set fb_info.fbcon_rotate_hint to make fbcon do - * the unsupported rotation. - */ -static void drm_setup_crtc_rotation(struct drm_fb_helper *fb_helper, - struct drm_fb_helper_crtc *fb_crtc, - struct drm_connector *connector) -{ - struct drm_plane *plane = fb_crtc->mode_set.crtc->primary; - uint64_t valid_mask = 0; - int i, rotation; - - fb_crtc->rotation = DRM_MODE_ROTATE_0; - - switch (connector->display_info.panel_orientation) { - case DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP: - rotation = DRM_MODE_ROTATE_180; - break; - case DRM_MODE_PANEL_ORIENTATION_LEFT_UP: - rotation = DRM_MODE_ROTATE_90; - break; - case DRM_MODE_PANEL_ORIENTATION_RIGHT_UP: - rotation = DRM_MODE_ROTATE_270; - break; - default: - rotation = DRM_MODE_ROTATE_0; - } - - /* - * TODO: support 90 / 270 degree hardware rotation, - * depending on the hardware this may require the framebuffer - * to be in a specific tiling format. - */ - if (rotation != DRM_MODE_ROTATE_180 || !plane->rotation_property) { - fb_helper->sw_rotations |= rotation; - return; - } - - for (i = 0; i < plane->rotation_property->num_values; i++) - valid_mask |= (1ULL << plane->rotation_property->values[i]); - - if (!(rotation & valid_mask)) { - fb_helper->sw_rotations |= rotation; - return; - } - - fb_crtc->rotation = rotation; - /* Rotating in hardware, fbcon should not rotate */ - fb_helper->sw_rotations |= DRM_MODE_ROTATE_0; -} - static void drm_setup_crtcs(struct drm_fb_helper *fb_helper, u32 width, u32 height) { @@ -2529,7 +2517,6 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper, drm_fb_helper_modeset_release(fb_helper, &fb_helper->crtc_info[i].mode_set); - fb_helper->sw_rotations = 0; drm_fb_helper_for_each_connector(fb_helper, i) { struct drm_display_mode *mode = modes[i]; struct drm_fb_helper_crtc *fb_crtc = crtcs[i]; @@ -2549,7 +2536,6 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper, modeset->mode = drm_mode_duplicate(dev, fb_crtc->desired_mode); drm_connector_get(connector); - drm_setup_crtc_rotation(fb_helper, fb_crtc, connector); modeset->connectors[modeset->num_connectors++] = connector; modeset->x = offset->x; modeset->y = offset->y; @@ -2572,11 +2558,24 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper, static void drm_setup_crtcs_fb(struct drm_fb_helper *fb_helper) { struct fb_info *info = fb_helper->fbdev; + unsigned int rotation, sw_rotations = 0; int i; - for (i = 0; i < fb_helper->crtc_count; i++) - if (fb_helper->crtc_info[i].mode_set.num_connectors) - fb_helper->crtc_info[i].mode_set.fb = fb_helper->fb; + for (i = 0; i < fb_helper->crtc_count; i++) { + struct drm_mode_set *modeset = &fb_helper->crtc_info[i].mode_set; + + if (!modeset->num_connectors) + continue; + + modeset->fb = fb_helper->fb; + + if (drm_fb_helper_panel_rotation(modeset->connectors[0], + modeset->crtc->primary, &rotation)) + /* Rotating in hardware, fbcon should not rotate */ + sw_rotations |= DRM_MODE_ROTATE_0; + else + sw_rotations |= rotation; + } mutex_lock(&fb_helper->dev->mode_config.mutex); drm_fb_helper_for_each_connector(fb_helper, i) { @@ -2592,7 +2591,7 @@ static void drm_setup_crtcs_fb(struct drm_fb_helper *fb_helper) } mutex_unlock(&fb_helper->dev->mode_config.mutex); - switch (fb_helper->sw_rotations) { + switch (sw_rotations) { case DRM_MODE_ROTATE_0: info->fbcon_rotate_hint = FB_ROTATE_UR; break; diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h index b069433e7fc1..d1e45c832cd5 100644 --- a/include/drm/drm_fb_helper.h +++ b/include/drm/drm_fb_helper.h @@ -49,7 +49,6 @@ struct drm_fb_helper_crtc { struct drm_mode_set mode_set; struct drm_display_mode *desired_mode; int x, y; - int rotation; }; /** @@ -160,13 +159,6 @@ struct drm_fb_helper { struct drm_fb_helper_crtc *crtc_info; int connector_count; int connector_info_alloc_count; - /** - * @sw_rotations: - * Bitmask of all rotations requested for panel-orientation which - * could not be handled in hardware. If only one bit is set - * fbdev->fbcon_rotate_hint gets set to the requested rotation. - */ - int sw_rotations; /** * @connector_info: *
Getting rotation info is cheap so we can do it on demand. This is done in preparation for the removal of struct drm_fb_helper_crtc. Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> --- drivers/gpu/drm/drm_fb_helper.c | 131 ++++++++++++++++++++-------------------- include/drm/drm_fb_helper.h | 8 --- 2 files changed, 65 insertions(+), 74 deletions(-)