diff options
Diffstat (limited to 'drivers/gpu/drm/drm_atomic_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic_helper.c | 714 |
1 files changed, 521 insertions, 193 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index d579fd8f7cb8..10adac9397cf 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -25,6 +25,7 @@ * Daniel Vetter <daniel.vetter@ffwll.ch> */ +#include <linux/export.h> #include <linux/dma-fence.h> #include <linux/ktime.h> @@ -38,6 +39,7 @@ #include <drm/drm_drv.h> #include <drm/drm_framebuffer.h> #include <drm/drm_gem_atomic_helper.h> +#include <drm/drm_panic.h> #include <drm/drm_print.h> #include <drm/drm_self_refresh_helper.h> #include <drm/drm_vblank.h> @@ -290,7 +292,8 @@ static int update_connector_routing(struct drm_atomic_state *state, struct drm_connector *connector, struct drm_connector_state *old_connector_state, - struct drm_connector_state *new_connector_state) + struct drm_connector_state *new_connector_state, + bool added_by_user) { const struct drm_connector_helper_funcs *funcs; struct drm_encoder *new_encoder; @@ -339,9 +342,13 @@ update_connector_routing(struct drm_atomic_state *state, * there's a chance the connector may have been destroyed during the * process, but it's better to ignore that then cause * drm_atomic_helper_resume() to fail. + * + * Last, we want to ignore connector registration when the connector + * was not pulled in the atomic state by user-space (ie, was pulled + * in by the driver, e.g. when updating a DP-MST stream). */ if (!state->duplicated && drm_connector_is_unregistered(connector) && - crtc_state->active) { + added_by_user && crtc_state->active) { drm_dbg_atomic(connector->dev, "[CONNECTOR:%d:%s] is not registered\n", connector->base.id, connector->name); @@ -449,6 +456,7 @@ mode_fixup(struct drm_atomic_state *state) ret = drm_atomic_bridge_chain_check(bridge, new_crtc_state, new_conn_state); + drm_bridge_put(bridge); if (ret) { drm_dbg_atomic(encoder->dev, "Bridge atomic check failed\n"); return ret; @@ -520,6 +528,7 @@ static enum drm_mode_status mode_valid_path(struct drm_connector *connector, bridge = drm_bridge_chain_get_first_bridge(encoder); ret = drm_bridge_chain_mode_valid(bridge, &connector->display_info, mode); + drm_bridge_put(bridge); if (ret != MODE_OK) { drm_dbg_atomic(encoder->dev, "[BRIDGE] mode_valid() failed\n"); return ret; @@ -568,6 +577,30 @@ mode_valid(struct drm_atomic_state *state) return 0; } +static int drm_atomic_check_valid_clones(struct drm_atomic_state *state, + struct drm_crtc *crtc) +{ + struct drm_encoder *drm_enc; + struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, + crtc); + + drm_for_each_encoder_mask(drm_enc, crtc->dev, crtc_state->encoder_mask) { + if (!drm_enc->possible_clones) { + DRM_DEBUG("enc%d possible_clones is 0\n", drm_enc->base.id); + continue; + } + + if ((crtc_state->encoder_mask & drm_enc->possible_clones) != + crtc_state->encoder_mask) { + DRM_DEBUG("crtc%d failed valid clone check for mask 0x%x\n", + crtc->base.id, crtc_state->encoder_mask); + return -EINVAL; + } + } + + return 0; +} + /** * drm_atomic_helper_check_modeset - validate state object for modeset changes * @dev: DRM device @@ -620,7 +653,10 @@ drm_atomic_helper_check_modeset(struct drm_device *dev, struct drm_connector *connector; struct drm_connector_state *old_connector_state, *new_connector_state; int i, ret; - unsigned int connectors_mask = 0; + unsigned int connectors_mask = 0, user_connectors_mask = 0; + + for_each_oldnew_connector_in_state(state, connector, old_connector_state, new_connector_state, i) + user_connectors_mask |= BIT(i); for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { bool has_connectors = @@ -657,8 +693,9 @@ drm_atomic_helper_check_modeset(struct drm_device *dev, } if (new_crtc_state->enable != has_connectors) { - drm_dbg_atomic(dev, "[CRTC:%d:%s] enabled/connectors mismatch\n", - crtc->base.id, crtc->name); + drm_dbg_atomic(dev, "[CRTC:%d:%s] enabled/connectors mismatch (%d/%d)\n", + crtc->base.id, crtc->name, + new_crtc_state->enable, has_connectors); return -EINVAL; } @@ -685,7 +722,8 @@ drm_atomic_helper_check_modeset(struct drm_device *dev, */ ret = update_connector_routing(state, connector, old_connector_state, - new_connector_state); + new_connector_state, + BIT(i) & user_connectors_mask); if (ret) return ret; if (old_connector_state->crtc) { @@ -735,6 +773,10 @@ drm_atomic_helper_check_modeset(struct drm_device *dev, ret = drm_atomic_add_affected_planes(state, crtc); if (ret != 0) return ret; + + ret = drm_atomic_check_valid_clones(state, crtc); + if (ret != 0) + return ret; } /* @@ -786,9 +828,9 @@ drm_atomic_helper_check_modeset(struct drm_device *dev, EXPORT_SYMBOL(drm_atomic_helper_check_modeset); /** - * drm_atomic_helper_check_wb_encoder_state() - Check writeback encoder state - * @encoder: encoder state to check - * @conn_state: connector state to check + * drm_atomic_helper_check_wb_connector_state() - Check writeback connector state + * @connector: corresponding connector + * @state: the driver state object * * Checks if the writeback connector state is valid, and returns an error if it * isn't. @@ -797,9 +839,11 @@ EXPORT_SYMBOL(drm_atomic_helper_check_modeset); * Zero for success or -errno */ int -drm_atomic_helper_check_wb_encoder_state(struct drm_encoder *encoder, - struct drm_connector_state *conn_state) +drm_atomic_helper_check_wb_connector_state(struct drm_connector *connector, + struct drm_atomic_state *state) { + struct drm_connector_state *conn_state = + drm_atomic_get_new_connector_state(state, connector); struct drm_writeback_job *wb_job = conn_state->writeback_job; struct drm_property_blob *pixel_format_blob; struct drm_framebuffer *fb; @@ -818,11 +862,11 @@ drm_atomic_helper_check_wb_encoder_state(struct drm_encoder *encoder, if (fb->format->format == formats[i]) return 0; - drm_dbg_kms(encoder->dev, "Invalid pixel format %p4cc\n", &fb->format->format); + drm_dbg_kms(connector->dev, "Invalid pixel format %p4cc\n", &fb->format->format); return -EINVAL; } -EXPORT_SYMBOL(drm_atomic_helper_check_wb_encoder_state); +EXPORT_SYMBOL(drm_atomic_helper_check_wb_connector_state); /** * drm_atomic_helper_check_plane_state() - Check plane state for validity @@ -1047,6 +1091,15 @@ EXPORT_SYMBOL(drm_atomic_helper_check_planes); * For example enable/disable of a cursor plane which have fixed zpos value * would trigger all other enabled planes to be forced to the state change. * + * IMPORTANT: + * + * As this function calls drm_atomic_helper_check_modeset() internally, its + * restrictions also apply: + * Drivers which set &drm_crtc_state.mode_changed (e.g. in their + * &drm_plane_helper_funcs.atomic_check hooks if a plane update can't be done + * without a full modeset) _must_ call drm_atomic_helper_check_modeset() + * function again after that change. + * * RETURNS: * Zero for success or -errno */ @@ -1110,15 +1163,14 @@ crtc_needs_disable(struct drm_crtc_state *old_state, } static void -disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state) +encoder_bridge_disable(struct drm_device *dev, struct drm_atomic_state *state) { struct drm_connector *connector; struct drm_connector_state *old_conn_state, *new_conn_state; - struct drm_crtc *crtc; struct drm_crtc_state *old_crtc_state, *new_crtc_state; int i; - for_each_oldnew_connector_in_state(old_state, connector, old_conn_state, new_conn_state, i) { + for_each_oldnew_connector_in_state(state, connector, old_conn_state, new_conn_state, i) { const struct drm_encoder_helper_funcs *funcs; struct drm_encoder *encoder; struct drm_bridge *bridge; @@ -1130,11 +1182,11 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state) if (!old_conn_state->crtc) continue; - old_crtc_state = drm_atomic_get_old_crtc_state(old_state, old_conn_state->crtc); + old_crtc_state = drm_atomic_get_old_crtc_state(state, old_conn_state->crtc); if (new_conn_state->crtc) new_crtc_state = drm_atomic_get_new_crtc_state( - old_state, + state, new_conn_state->crtc); else new_crtc_state = NULL; @@ -1161,12 +1213,13 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state) * it away), so we won't call disable hooks twice. */ bridge = drm_bridge_chain_get_first_bridge(encoder); - drm_atomic_bridge_chain_disable(bridge, old_state); + drm_atomic_bridge_chain_disable(bridge, state); + drm_bridge_put(bridge); /* Right function depends upon target state. */ if (funcs) { if (funcs->atomic_disable) - funcs->atomic_disable(encoder, old_state); + funcs->atomic_disable(encoder, state); else if (new_conn_state->crtc && funcs->prepare) funcs->prepare(encoder); else if (funcs->disable) @@ -1174,11 +1227,17 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state) else if (funcs->dpms) funcs->dpms(encoder, DRM_MODE_DPMS_OFF); } - - drm_atomic_bridge_chain_post_disable(bridge, old_state); } +} - for_each_oldnew_crtc_in_state(old_state, crtc, old_crtc_state, new_crtc_state, i) { +static void +crtc_disable(struct drm_device *dev, struct drm_atomic_state *state) +{ + struct drm_crtc *crtc; + struct drm_crtc_state *old_crtc_state, *new_crtc_state; + int i; + + for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { const struct drm_crtc_helper_funcs *funcs; int ret; @@ -1199,7 +1258,7 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state) if (new_crtc_state->enable && funcs->prepare) funcs->prepare(crtc); else if (funcs->atomic_disable) - funcs->atomic_disable(crtc, old_state); + funcs->atomic_disable(crtc, state); else if (funcs->disable) funcs->disable(crtc); else if (funcs->dpms) @@ -1209,16 +1268,88 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state) continue; ret = drm_crtc_vblank_get(crtc); - WARN_ONCE(ret != -EINVAL, "driver forgot to call drm_crtc_vblank_off()\n"); + /* + * Self-refresh is not a true "disable"; ensure vblank remains + * enabled. + */ + if (new_crtc_state->self_refresh_active) + WARN_ONCE(ret != 0, + "driver disabled vblank in self-refresh\n"); + else + WARN_ONCE(ret != -EINVAL, + "driver forgot to call drm_crtc_vblank_off()\n"); if (ret == 0) drm_crtc_vblank_put(crtc); } } +static void +encoder_bridge_post_disable(struct drm_device *dev, struct drm_atomic_state *state) +{ + struct drm_connector *connector; + struct drm_connector_state *old_conn_state, *new_conn_state; + struct drm_crtc_state *old_crtc_state, *new_crtc_state; + int i; + + for_each_oldnew_connector_in_state(state, connector, old_conn_state, new_conn_state, i) { + struct drm_encoder *encoder; + struct drm_bridge *bridge; + + /* + * Shut down everything that's in the changeset and currently + * still on. So need to check the old, saved state. + */ + if (!old_conn_state->crtc) + continue; + + old_crtc_state = drm_atomic_get_old_crtc_state(state, old_conn_state->crtc); + + if (new_conn_state->crtc) + new_crtc_state = drm_atomic_get_new_crtc_state(state, + new_conn_state->crtc); + else + new_crtc_state = NULL; + + if (!crtc_needs_disable(old_crtc_state, new_crtc_state) || + !drm_atomic_crtc_needs_modeset(old_conn_state->crtc->state)) + continue; + + encoder = old_conn_state->best_encoder; + + /* + * We shouldn't get this far if we didn't previously have + * an encoder.. but WARN_ON() rather than explode. + */ + if (WARN_ON(!encoder)) + continue; + + drm_dbg_atomic(dev, "post-disabling bridges [ENCODER:%d:%s]\n", + encoder->base.id, encoder->name); + + /* + * Each encoder has at most one connector (since we always steal + * it away), so we won't call disable hooks twice. + */ + bridge = drm_bridge_chain_get_first_bridge(encoder); + drm_atomic_bridge_chain_post_disable(bridge, state); + drm_bridge_put(bridge); + } +} + +static void +disable_outputs(struct drm_device *dev, struct drm_atomic_state *state) +{ + encoder_bridge_disable(dev, state); + + crtc_disable(dev, state); + + encoder_bridge_post_disable(dev, state); +} + /** * drm_atomic_helper_update_legacy_modeset_state - update legacy modeset state * @dev: DRM device - * @old_state: atomic state object with old state structures + * @state: atomic state object being committed * * This function updates all the various legacy modeset state pointers in * connectors, encoders and CRTCs. @@ -1234,7 +1365,7 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state) */ void drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev, - struct drm_atomic_state *old_state) + struct drm_atomic_state *state) { struct drm_connector *connector; struct drm_connector_state *old_conn_state, *new_conn_state; @@ -1243,7 +1374,7 @@ drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev, int i; /* clear out existing links and update dpms */ - for_each_oldnew_connector_in_state(old_state, connector, old_conn_state, new_conn_state, i) { + for_each_oldnew_connector_in_state(state, connector, old_conn_state, new_conn_state, i) { if (connector->encoder) { WARN_ON(!connector->encoder->crtc); @@ -1264,7 +1395,7 @@ drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev, } /* set new links */ - for_each_new_connector_in_state(old_state, connector, new_conn_state, i) { + for_each_new_connector_in_state(state, connector, new_conn_state, i) { if (!new_conn_state->crtc) continue; @@ -1276,7 +1407,7 @@ drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev, } /* set legacy state in the crtc structure */ - for_each_new_crtc_in_state(old_state, crtc, new_crtc_state, i) { + for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { struct drm_plane *primary = crtc->primary; struct drm_plane_state *new_plane_state; @@ -1284,7 +1415,7 @@ drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev, crtc->enabled = new_crtc_state->enable; new_plane_state = - drm_atomic_get_new_plane_state(old_state, primary); + drm_atomic_get_new_plane_state(state, primary); if (new_plane_state && new_plane_state->crtc == crtc) { crtc->x = new_plane_state->src_x >> 16; @@ -1316,7 +1447,7 @@ void drm_atomic_helper_calc_timestamping_constants(struct drm_atomic_state *stat EXPORT_SYMBOL(drm_atomic_helper_calc_timestamping_constants); static void -crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *old_state) +crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *state) { struct drm_crtc *crtc; struct drm_crtc_state *new_crtc_state; @@ -1324,7 +1455,7 @@ crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *old_state) struct drm_connector_state *new_conn_state; int i; - for_each_new_crtc_in_state(old_state, crtc, new_crtc_state, i) { + for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { const struct drm_crtc_helper_funcs *funcs; if (!new_crtc_state->mode_changed) @@ -1340,7 +1471,7 @@ crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *old_state) } } - for_each_new_connector_in_state(old_state, connector, new_conn_state, i) { + for_each_new_connector_in_state(state, connector, new_conn_state, i) { const struct drm_encoder_helper_funcs *funcs; struct drm_encoder *encoder; struct drm_display_mode *mode, *adjusted_mode; @@ -1355,7 +1486,7 @@ crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *old_state) mode = &new_crtc_state->mode; adjusted_mode = &new_crtc_state->adjusted_mode; - if (!new_crtc_state->mode_changed) + if (!new_crtc_state->mode_changed && !new_crtc_state->connectors_changed) continue; drm_dbg_atomic(dev, "modeset on [ENCODER:%d:%s]\n", @@ -1374,13 +1505,14 @@ crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *old_state) bridge = drm_bridge_chain_get_first_bridge(encoder); drm_bridge_chain_mode_set(bridge, mode, adjusted_mode); + drm_bridge_put(bridge); } } /** * drm_atomic_helper_commit_modeset_disables - modeset commit to disable outputs * @dev: DRM device - * @old_state: atomic state object with old state structures + * @state: atomic state object being committed * * This function shuts down all the outputs that need to be shut down and * prepares them (if required) with the new mode. @@ -1392,25 +1524,25 @@ crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *old_state) * PM since planes updates then only happen when the CRTC is actually enabled. */ void drm_atomic_helper_commit_modeset_disables(struct drm_device *dev, - struct drm_atomic_state *old_state) + struct drm_atomic_state *state) { - disable_outputs(dev, old_state); + disable_outputs(dev, state); - drm_atomic_helper_update_legacy_modeset_state(dev, old_state); - drm_atomic_helper_calc_timestamping_constants(old_state); + drm_atomic_helper_update_legacy_modeset_state(dev, state); + drm_atomic_helper_calc_timestamping_constants(state); - crtc_set_mode(dev, old_state); + crtc_set_mode(dev, state); } EXPORT_SYMBOL(drm_atomic_helper_commit_modeset_disables); static void drm_atomic_helper_commit_writebacks(struct drm_device *dev, - struct drm_atomic_state *old_state) + struct drm_atomic_state *state) { struct drm_connector *connector; struct drm_connector_state *new_conn_state; int i; - for_each_new_connector_in_state(old_state, connector, new_conn_state, i) { + for_each_new_connector_in_state(state, connector, new_conn_state, i) { const struct drm_connector_helper_funcs *funcs; funcs = connector->helper_private; @@ -1419,36 +1551,53 @@ static void drm_atomic_helper_commit_writebacks(struct drm_device *dev, if (new_conn_state->writeback_job && new_conn_state->writeback_job->fb) { WARN_ON(connector->connector_type != DRM_MODE_CONNECTOR_WRITEBACK); - funcs->atomic_commit(connector, old_state); + funcs->atomic_commit(connector, state); } } } -/** - * drm_atomic_helper_commit_modeset_enables - modeset commit to enable outputs - * @dev: DRM device - * @old_state: atomic state object with old state structures - * - * This function enables all the outputs with the new configuration which had to - * be turned off for the update. - * - * For compatibility with legacy CRTC helpers this should be called after - * drm_atomic_helper_commit_planes(), which is what the default commit function - * does. But drivers with different needs can group the modeset commits together - * and do the plane commits at the end. This is useful for drivers doing runtime - * PM since planes updates then only happen when the CRTC is actually enabled. - */ -void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev, - struct drm_atomic_state *old_state) +static void +encoder_bridge_pre_enable(struct drm_device *dev, struct drm_atomic_state *state) +{ + struct drm_connector *connector; + struct drm_connector_state *new_conn_state; + int i; + + for_each_new_connector_in_state(state, connector, new_conn_state, i) { + struct drm_encoder *encoder; + struct drm_bridge *bridge; + + if (!new_conn_state->best_encoder) + continue; + + if (!new_conn_state->crtc->state->active || + !drm_atomic_crtc_needs_modeset(new_conn_state->crtc->state)) + continue; + + encoder = new_conn_state->best_encoder; + + drm_dbg_atomic(dev, "pre-enabling bridges [ENCODER:%d:%s]\n", + encoder->base.id, encoder->name); + + /* + * Each encoder has at most one connector (since we always steal + * it away), so we won't call enable hooks twice. + */ + bridge = drm_bridge_chain_get_first_bridge(encoder); + drm_atomic_bridge_chain_pre_enable(bridge, state); + drm_bridge_put(bridge); + } +} + +static void +crtc_enable(struct drm_device *dev, struct drm_atomic_state *state) { struct drm_crtc *crtc; struct drm_crtc_state *old_crtc_state; struct drm_crtc_state *new_crtc_state; - struct drm_connector *connector; - struct drm_connector_state *new_conn_state; int i; - for_each_oldnew_crtc_in_state(old_state, crtc, old_crtc_state, new_crtc_state, i) { + for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { const struct drm_crtc_helper_funcs *funcs; /* Need to filter out CRTCs where only planes change. */ @@ -1464,13 +1613,21 @@ void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev, drm_dbg_atomic(dev, "enabling [CRTC:%d:%s]\n", crtc->base.id, crtc->name); if (funcs->atomic_enable) - funcs->atomic_enable(crtc, old_state); + funcs->atomic_enable(crtc, state); else if (funcs->commit) funcs->commit(crtc); } } +} - for_each_new_connector_in_state(old_state, connector, new_conn_state, i) { +static void +encoder_bridge_enable(struct drm_device *dev, struct drm_atomic_state *state) +{ + struct drm_connector *connector; + struct drm_connector_state *new_conn_state; + int i; + + for_each_new_connector_in_state(state, connector, new_conn_state, i) { const struct drm_encoder_helper_funcs *funcs; struct drm_encoder *encoder; struct drm_bridge *bridge; @@ -1493,24 +1650,89 @@ void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev, * it away), so we won't call enable hooks twice. */ bridge = drm_bridge_chain_get_first_bridge(encoder); - drm_atomic_bridge_chain_pre_enable(bridge, old_state); if (funcs) { if (funcs->atomic_enable) - funcs->atomic_enable(encoder, old_state); + funcs->atomic_enable(encoder, state); else if (funcs->enable) funcs->enable(encoder); else if (funcs->commit) funcs->commit(encoder); } - drm_atomic_bridge_chain_enable(bridge, old_state); + drm_atomic_bridge_chain_enable(bridge, state); + drm_bridge_put(bridge); } +} + +/** + * drm_atomic_helper_commit_modeset_enables - modeset commit to enable outputs + * @dev: DRM device + * @state: atomic state object being committed + * + * This function enables all the outputs with the new configuration which had to + * be turned off for the update. + * + * For compatibility with legacy CRTC helpers this should be called after + * drm_atomic_helper_commit_planes(), which is what the default commit function + * does. But drivers with different needs can group the modeset commits together + * and do the plane commits at the end. This is useful for drivers doing runtime + * PM since planes updates then only happen when the CRTC is actually enabled. + */ +void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev, + struct drm_atomic_state *state) +{ + encoder_bridge_pre_enable(dev, state); + + crtc_enable(dev, state); - drm_atomic_helper_commit_writebacks(dev, old_state); + encoder_bridge_enable(dev, state); + + drm_atomic_helper_commit_writebacks(dev, state); } EXPORT_SYMBOL(drm_atomic_helper_commit_modeset_enables); +/* + * For atomic updates which touch just a single CRTC, calculate the time of the + * next vblank, and inform all the fences of the deadline. + */ +static void set_fence_deadline(struct drm_device *dev, + struct drm_atomic_state *state) +{ + struct drm_crtc *crtc; + struct drm_crtc_state *new_crtc_state; + struct drm_plane *plane; + struct drm_plane_state *new_plane_state; + ktime_t vbltime = 0; + int i; + + for_each_new_crtc_in_state (state, crtc, new_crtc_state, i) { + ktime_t v; + + if (drm_atomic_crtc_needs_modeset(new_crtc_state)) + continue; + + if (!new_crtc_state->active) + continue; + + if (drm_crtc_next_vblank_start(crtc, &v)) + continue; + + if (!vbltime || ktime_before(v, vbltime)) + vbltime = v; + } + + /* If no CRTCs updated, then nothing to do: */ + if (!vbltime) + return; + + for_each_new_plane_in_state (state, plane, new_plane_state, i) { + if (!new_plane_state->fence) + continue; + dma_fence_set_deadline(new_plane_state->fence, vbltime); + } +} + /** * drm_atomic_helper_wait_for_fences - wait for fences stashed in plane state * @dev: DRM device @@ -1540,6 +1762,8 @@ int drm_atomic_helper_wait_for_fences(struct drm_device *dev, struct drm_plane_state *new_plane_state; int i, ret; + set_fence_deadline(dev, state); + for_each_new_plane_in_state(state, plane, new_plane_state, i) { if (!new_plane_state->fence) continue; @@ -1566,7 +1790,7 @@ EXPORT_SYMBOL(drm_atomic_helper_wait_for_fences); /** * drm_atomic_helper_wait_for_vblanks - wait for vblank on CRTCs * @dev: DRM device - * @old_state: atomic state object with old state structures + * @state: atomic state object being committed * * Helper to, after atomic commit, wait for vblanks on all affected * CRTCs (ie. before cleaning up old framebuffers using @@ -1580,7 +1804,7 @@ EXPORT_SYMBOL(drm_atomic_helper_wait_for_fences); */ void drm_atomic_helper_wait_for_vblanks(struct drm_device *dev, - struct drm_atomic_state *old_state) + struct drm_atomic_state *state) { struct drm_crtc *crtc; struct drm_crtc_state *old_crtc_state, *new_crtc_state; @@ -1591,10 +1815,10 @@ drm_atomic_helper_wait_for_vblanks(struct drm_device *dev, * Legacy cursor ioctls are completely unsynced, and userspace * relies on that (by doing tons of cursor updates). */ - if (old_state->legacy_cursor_update) + if (state->legacy_cursor_update) return; - for_each_oldnew_crtc_in_state(old_state, crtc, old_crtc_state, new_crtc_state, i) { + for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { if (!new_crtc_state->active) continue; @@ -1603,17 +1827,19 @@ drm_atomic_helper_wait_for_vblanks(struct drm_device *dev, continue; crtc_mask |= drm_crtc_mask(crtc); - old_state->crtcs[i].last_vblank_count = drm_crtc_vblank_count(crtc); + state->crtcs[i].last_vblank_count = drm_crtc_vblank_count(crtc); } - for_each_old_crtc_in_state(old_state, crtc, old_crtc_state, i) { + for_each_old_crtc_in_state(state, crtc, old_crtc_state, i) { + wait_queue_head_t *queue = drm_crtc_vblank_waitqueue(crtc); + if (!(crtc_mask & drm_crtc_mask(crtc))) continue; - ret = wait_event_timeout(dev->vblank[i].queue, - old_state->crtcs[i].last_vblank_count != - drm_crtc_vblank_count(crtc), - msecs_to_jiffies(100)); + ret = wait_event_timeout(*queue, + state->crtcs[i].last_vblank_count != + drm_crtc_vblank_count(crtc), + msecs_to_jiffies(100)); WARN(!ret, "[CRTC:%d:%s] vblank wait timed out\n", crtc->base.id, crtc->name); @@ -1626,7 +1852,7 @@ EXPORT_SYMBOL(drm_atomic_helper_wait_for_vblanks); /** * drm_atomic_helper_wait_for_flip_done - wait for all page flips to be done * @dev: DRM device - * @old_state: atomic state object with old state structures + * @state: atomic state object being committed * * Helper to, after atomic commit, wait for page flips on all affected * crtcs (ie. before cleaning up old framebuffers using @@ -1639,16 +1865,16 @@ EXPORT_SYMBOL(drm_atomic_helper_wait_for_vblanks); * initialized using drm_atomic_helper_setup_commit(). */ void drm_atomic_helper_wait_for_flip_done(struct drm_device *dev, - struct drm_atomic_state *old_state) + struct drm_atomic_state *state) { struct drm_crtc *crtc; int i; for (i = 0; i < dev->mode_config.num_crtc; i++) { - struct drm_crtc_commit *commit = old_state->crtcs[i].commit; + struct drm_crtc_commit *commit = state->crtcs[i].commit; int ret; - crtc = old_state->crtcs[i].ptr; + crtc = state->crtcs[i].ptr; if (!crtc || !commit) continue; @@ -1659,14 +1885,14 @@ void drm_atomic_helper_wait_for_flip_done(struct drm_device *dev, crtc->base.id, crtc->name); } - if (old_state->fake_commit) - complete_all(&old_state->fake_commit->flip_done); + if (state->fake_commit) + complete_all(&state->fake_commit->flip_done); } EXPORT_SYMBOL(drm_atomic_helper_wait_for_flip_done); /** * drm_atomic_helper_commit_tail - commit atomic update to hardware - * @old_state: atomic state object with old state structures + * @state: atomic state object being committed * * This is the default implementation for the * &drm_mode_config_helper_funcs.atomic_commit_tail hook, for drivers @@ -1677,29 +1903,29 @@ EXPORT_SYMBOL(drm_atomic_helper_wait_for_flip_done); * Note that the default ordering of how the various stages are called is to * match the legacy modeset helper library closest. */ -void drm_atomic_helper_commit_tail(struct drm_atomic_state *old_state) +void drm_atomic_helper_commit_tail(struct drm_atomic_state *state) { - struct drm_device *dev = old_state->dev; + struct drm_device *dev = state->dev; - drm_atomic_helper_commit_modeset_disables(dev, old_state); + drm_atomic_helper_commit_modeset_disables(dev, state); - drm_atomic_helper_commit_planes(dev, old_state, 0); + drm_atomic_helper_commit_planes(dev, state, 0); - drm_atomic_helper_commit_modeset_enables(dev, old_state); + drm_atomic_helper_commit_modeset_enables(dev, state); - drm_atomic_helper_fake_vblank(old_state); + drm_atomic_helper_fake_vblank(state); - drm_atomic_helper_commit_hw_done(old_state); + drm_atomic_helper_commit_hw_done(state); - drm_atomic_helper_wait_for_vblanks(dev, old_state); + drm_atomic_helper_wait_for_vblanks(dev, state); - drm_atomic_helper_cleanup_planes(dev, old_state); + drm_atomic_helper_cleanup_planes(dev, state); } EXPORT_SYMBOL(drm_atomic_helper_commit_tail); /** * drm_atomic_helper_commit_tail_rpm - commit atomic update to hardware - * @old_state: new modeset state to be committed + * @state: new modeset state to be committed * * This is an alternative implementation for the * &drm_mode_config_helper_funcs.atomic_commit_tail hook, for drivers @@ -1707,30 +1933,30 @@ EXPORT_SYMBOL(drm_atomic_helper_commit_tail); * commit. Otherwise, one should use the default implementation * drm_atomic_helper_commit_tail(). */ -void drm_atomic_helper_commit_tail_rpm(struct drm_atomic_state *old_state) +void drm_atomic_helper_commit_tail_rpm(struct drm_atomic_state *state) { - struct drm_device *dev = old_state->dev; + struct drm_device *dev = state->dev; - drm_atomic_helper_commit_modeset_disables(dev, old_state); + drm_atomic_helper_commit_modeset_disables(dev, state); - drm_atomic_helper_commit_modeset_enables(dev, old_state); + drm_atomic_helper_commit_modeset_enables(dev, state); - drm_atomic_helper_commit_planes(dev, old_state, + drm_atomic_helper_commit_planes(dev, state, DRM_PLANE_COMMIT_ACTIVE_ONLY); - drm_atomic_helper_fake_vblank(old_state); + drm_atomic_helper_fake_vblank(state); - drm_atomic_helper_commit_hw_done(old_state); + drm_atomic_helper_commit_hw_done(state); - drm_atomic_helper_wait_for_vblanks(dev, old_state); + drm_atomic_helper_wait_for_vblanks(dev, state); - drm_atomic_helper_cleanup_planes(dev, old_state); + drm_atomic_helper_cleanup_planes(dev, state); } EXPORT_SYMBOL(drm_atomic_helper_commit_tail_rpm); -static void commit_tail(struct drm_atomic_state *old_state) +static void commit_tail(struct drm_atomic_state *state) { - struct drm_device *dev = old_state->dev; + struct drm_device *dev = state->dev; const struct drm_mode_config_helper_funcs *funcs; struct drm_crtc_state *new_crtc_state; struct drm_crtc *crtc; @@ -1752,33 +1978,33 @@ static void commit_tail(struct drm_atomic_state *old_state) */ start = ktime_get(); - drm_atomic_helper_wait_for_fences(dev, old_state, false); + drm_atomic_helper_wait_for_fences(dev, state, false); - drm_atomic_helper_wait_for_dependencies(old_state); + drm_atomic_helper_wait_for_dependencies(state); /* * We cannot safely access new_crtc_state after * drm_atomic_helper_commit_hw_done() so figure out which crtc's have * self-refresh active beforehand: */ - for_each_new_crtc_in_state(old_state, crtc, new_crtc_state, i) + for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) if (new_crtc_state->self_refresh_active) new_self_refresh_mask |= BIT(i); if (funcs && funcs->atomic_commit_tail) - funcs->atomic_commit_tail(old_state); + funcs->atomic_commit_tail(state); else - drm_atomic_helper_commit_tail(old_state); + drm_atomic_helper_commit_tail(state); commit_time_ms = ktime_ms_delta(ktime_get(), start); if (commit_time_ms > 0) - drm_self_refresh_helper_update_avg_times(old_state, + drm_self_refresh_helper_update_avg_times(state, (unsigned long)commit_time_ms, new_self_refresh_mask); - drm_atomic_helper_commit_cleanup_done(old_state); + drm_atomic_helper_commit_cleanup_done(state); - drm_atomic_state_put(old_state); + drm_atomic_state_put(state); } static void commit_work(struct work_struct *work) @@ -1864,7 +2090,7 @@ int drm_atomic_helper_async_check(struct drm_device *dev, return -EBUSY; } - ret = funcs->atomic_async_check(plane, state); + ret = funcs->atomic_async_check(plane, state, false); if (ret != 0) drm_dbg_atomic(dev, "[PLANE:%d:%s] driver async check failed\n", @@ -1951,7 +2177,7 @@ int drm_atomic_helper_commit(struct drm_device *dev, return ret; drm_atomic_helper_async_commit(dev, state); - drm_atomic_helper_cleanup_planes(dev, state); + drm_atomic_helper_unprepare_planes(dev, state); return 0; } @@ -2011,7 +2237,7 @@ int drm_atomic_helper_commit(struct drm_device *dev, return 0; err: - drm_atomic_helper_cleanup_planes(dev, state); + drm_atomic_helper_unprepare_planes(dev, state); return ret; } EXPORT_SYMBOL(drm_atomic_helper_commit); @@ -2202,7 +2428,6 @@ crtc_or_fake_commit(struct drm_atomic_state *state, struct drm_crtc *crtc) * automatically. * * Returns: - * * 0 on success. -EBUSY when userspace schedules nonblocking commits too fast, * -ENOMEM on allocation failures and -EINTR when a signal is pending. */ @@ -2321,18 +2546,18 @@ int drm_atomic_helper_setup_commit(struct drm_atomic_state *state, EXPORT_SYMBOL(drm_atomic_helper_setup_commit); /** - * drm_atomic_helper_wait_for_dependencies - wait for required preceeding commits - * @old_state: atomic state object with old state structures + * drm_atomic_helper_wait_for_dependencies - wait for required preceding commits + * @state: atomic state object being committed * - * This function waits for all preceeding commits that touch the same CRTC as - * @old_state to both be committed to the hardware (as signalled by + * This function waits for all preceding commits that touch the same CRTC as + * @state to both be committed to the hardware (as signalled by * drm_atomic_helper_commit_hw_done()) and executed by the hardware (as signalled * by calling drm_crtc_send_vblank_event() on the &drm_crtc_state.event). * * This is part of the atomic helper support for nonblocking commits, see * drm_atomic_helper_setup_commit() for an overview. */ -void drm_atomic_helper_wait_for_dependencies(struct drm_atomic_state *old_state) +void drm_atomic_helper_wait_for_dependencies(struct drm_atomic_state *state) { struct drm_crtc *crtc; struct drm_crtc_state *old_crtc_state; @@ -2343,7 +2568,7 @@ void drm_atomic_helper_wait_for_dependencies(struct drm_atomic_state *old_state) int i; long ret; - for_each_old_crtc_in_state(old_state, crtc, old_crtc_state, i) { + for_each_old_crtc_in_state(state, crtc, old_crtc_state, i) { ret = drm_crtc_commit_wait(old_crtc_state->commit); if (ret) drm_err(crtc->dev, @@ -2351,7 +2576,7 @@ void drm_atomic_helper_wait_for_dependencies(struct drm_atomic_state *old_state) crtc->base.id, crtc->name); } - for_each_old_connector_in_state(old_state, conn, old_conn_state, i) { + for_each_old_connector_in_state(state, conn, old_conn_state, i) { ret = drm_crtc_commit_wait(old_conn_state->commit); if (ret) drm_err(conn->dev, @@ -2359,7 +2584,7 @@ void drm_atomic_helper_wait_for_dependencies(struct drm_atomic_state *old_state) conn->base.id, conn->name); } - for_each_old_plane_in_state(old_state, plane, old_plane_state, i) { + for_each_old_plane_in_state(state, plane, old_plane_state, i) { ret = drm_crtc_commit_wait(old_plane_state->commit); if (ret) drm_err(plane->dev, @@ -2371,7 +2596,7 @@ EXPORT_SYMBOL(drm_atomic_helper_wait_for_dependencies); /** * drm_atomic_helper_fake_vblank - fake VBLANK events if needed - * @old_state: atomic state object with old state structures + * @state: atomic state object being committed * * This function walks all CRTCs and fakes VBLANK events on those with * &drm_crtc_state.no_vblank set to true and &drm_crtc_state.event != NULL. @@ -2387,32 +2612,32 @@ EXPORT_SYMBOL(drm_atomic_helper_wait_for_dependencies); * This is part of the atomic helper support for nonblocking commits, see * drm_atomic_helper_setup_commit() for an overview. */ -void drm_atomic_helper_fake_vblank(struct drm_atomic_state *old_state) +void drm_atomic_helper_fake_vblank(struct drm_atomic_state *state) { struct drm_crtc_state *new_crtc_state; struct drm_crtc *crtc; int i; - for_each_new_crtc_in_state(old_state, crtc, new_crtc_state, i) { + for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) { unsigned long flags; if (!new_crtc_state->no_vblank) continue; - spin_lock_irqsave(&old_state->dev->event_lock, flags); + spin_lock_irqsave(&state->dev->event_lock, flags); if (new_crtc_state->event) { drm_crtc_send_vblank_event(crtc, new_crtc_state->event); new_crtc_state->event = NULL; } - spin_unlock_irqrestore(&old_state->dev->event_lock, flags); + spin_unlock_irqrestore(&state->dev->event_lock, flags); } } EXPORT_SYMBOL(drm_atomic_helper_fake_vblank); /** * drm_atomic_helper_commit_hw_done - setup possible nonblocking commit - * @old_state: atomic state object with old state structures + * @state: atomic state object being committed * * This function is used to signal completion of the hardware commit step. After * this step the driver is not allowed to read or change any permanent software @@ -2425,14 +2650,14 @@ EXPORT_SYMBOL(drm_atomic_helper_fake_vblank); * This is part of the atomic helper support for nonblocking commits, see * drm_atomic_helper_setup_commit() for an overview. */ -void drm_atomic_helper_commit_hw_done(struct drm_atomic_state *old_state) +void drm_atomic_helper_commit_hw_done(struct drm_atomic_state *state) { struct drm_crtc *crtc; struct drm_crtc_state *old_crtc_state, *new_crtc_state; struct drm_crtc_commit *commit; int i; - for_each_oldnew_crtc_in_state(old_state, crtc, old_crtc_state, new_crtc_state, i) { + for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { commit = new_crtc_state->commit; if (!commit) continue; @@ -2452,32 +2677,32 @@ void drm_atomic_helper_commit_hw_done(struct drm_atomic_state *old_state) complete_all(&commit->hw_done); } - if (old_state->fake_commit) { - complete_all(&old_state->fake_commit->hw_done); - complete_all(&old_state->fake_commit->flip_done); + if (state->fake_commit) { + complete_all(&state->fake_commit->hw_done); + complete_all(&state->fake_commit->flip_done); } } EXPORT_SYMBOL(drm_atomic_helper_commit_hw_done); /** * drm_atomic_helper_commit_cleanup_done - signal completion of commit - * @old_state: atomic state object with old state structures + * @state: atomic state object being committed * - * This signals completion of the atomic update @old_state, including any + * This signals completion of the atomic update @state, including any * cleanup work. If used, it must be called right before calling * drm_atomic_state_put(). * * This is part of the atomic helper support for nonblocking commits, see * drm_atomic_helper_setup_commit() for an overview. */ -void drm_atomic_helper_commit_cleanup_done(struct drm_atomic_state *old_state) +void drm_atomic_helper_commit_cleanup_done(struct drm_atomic_state *state) { struct drm_crtc *crtc; struct drm_crtc_state *old_crtc_state; struct drm_crtc_commit *commit; int i; - for_each_old_crtc_in_state(old_state, crtc, old_crtc_state, i) { + for_each_old_crtc_in_state(state, crtc, old_crtc_state, i) { commit = old_crtc_state->commit; if (WARN_ON(!commit)) continue; @@ -2490,9 +2715,9 @@ void drm_atomic_helper_commit_cleanup_done(struct drm_atomic_state *old_state) spin_unlock(&crtc->commit_lock); } - if (old_state->fake_commit) { - complete_all(&old_state->fake_commit->cleanup_done); - WARN_ON(!try_wait_for_completion(&old_state->fake_commit->hw_done)); + if (state->fake_commit) { + complete_all(&state->fake_commit->cleanup_done); + WARN_ON(!try_wait_for_completion(&state->fake_commit->hw_done)); } } EXPORT_SYMBOL(drm_atomic_helper_commit_cleanup_done); @@ -2589,6 +2814,39 @@ fail_prepare_fb: } EXPORT_SYMBOL(drm_atomic_helper_prepare_planes); +/** + * drm_atomic_helper_unprepare_planes - release plane resources on aborts + * @dev: DRM device + * @state: atomic state object with old state structures + * + * This function cleans up plane state, specifically framebuffers, from the + * atomic state. It undoes the effects of drm_atomic_helper_prepare_planes() + * when aborting an atomic commit. For cleaning up after a successful commit + * use drm_atomic_helper_cleanup_planes(). + */ +void drm_atomic_helper_unprepare_planes(struct drm_device *dev, + struct drm_atomic_state *state) +{ + struct drm_plane *plane; + struct drm_plane_state *new_plane_state; + int i; + + for_each_new_plane_in_state(state, plane, new_plane_state, i) { + const struct drm_plane_helper_funcs *funcs = plane->helper_private; + + if (funcs->end_fb_access) + funcs->end_fb_access(plane, new_plane_state); + } + + for_each_new_plane_in_state(state, plane, new_plane_state, i) { + const struct drm_plane_helper_funcs *funcs = plane->helper_private; + + if (funcs->cleanup_fb) + funcs->cleanup_fb(plane, new_plane_state); + } +} +EXPORT_SYMBOL(drm_atomic_helper_unprepare_planes); + static bool plane_crtc_active(const struct drm_plane_state *state) { return state->crtc && state->crtc->state->active; @@ -2597,7 +2855,7 @@ static bool plane_crtc_active(const struct drm_plane_state *state) /** * drm_atomic_helper_commit_planes - commit plane state * @dev: DRM device - * @old_state: atomic state object with old state structures + * @state: atomic state object being committed * @flags: flags for committing plane state * * This function commits the new plane state using the plane and atomic helper @@ -2605,7 +2863,7 @@ static bool plane_crtc_active(const struct drm_plane_state *state) * been pushed into the relevant object state pointers, since this step can no * longer fail. * - * It still requires the global state object @old_state to know which planes and + * It still requires the global state object @state to know which planes and * crtcs need to be updated though. * * Note that this function does all plane updates across all CRTCs in one step. @@ -2636,7 +2894,7 @@ static bool plane_crtc_active(const struct drm_plane_state *state) * This should not be copied blindly by drivers. */ void drm_atomic_helper_commit_planes(struct drm_device *dev, - struct drm_atomic_state *old_state, + struct drm_atomic_state *state, uint32_t flags) { struct drm_crtc *crtc; @@ -2647,7 +2905,7 @@ void drm_atomic_helper_commit_planes(struct drm_device *dev, bool active_only = flags & DRM_PLANE_COMMIT_ACTIVE_ONLY; bool no_disable = flags & DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET; - for_each_oldnew_crtc_in_state(old_state, crtc, old_crtc_state, new_crtc_state, i) { + for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { const struct drm_crtc_helper_funcs *funcs; funcs = crtc->helper_private; @@ -2658,10 +2916,10 @@ void drm_atomic_helper_commit_planes(struct drm_device *dev, if (active_only && !new_crtc_state->active) continue; - funcs->atomic_begin(crtc, old_state); + funcs->atomic_begin(crtc, state); } - for_each_oldnew_plane_in_state(old_state, plane, old_plane_state, new_plane_state, i) { + for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) { const struct drm_plane_helper_funcs *funcs; bool disabling; @@ -2699,13 +2957,18 @@ void drm_atomic_helper_commit_planes(struct drm_device *dev, no_disable) continue; - funcs->atomic_disable(plane, old_state); + funcs->atomic_disable(plane, state); } else if (new_plane_state->crtc || disabling) { - funcs->atomic_update(plane, old_state); + funcs->atomic_update(plane, state); + + if (!disabling && funcs->atomic_enable) { + if (drm_atomic_plane_enabling(old_plane_state, new_plane_state)) + funcs->atomic_enable(plane, state); + } } } - for_each_oldnew_crtc_in_state(old_state, crtc, old_crtc_state, new_crtc_state, i) { + for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { const struct drm_crtc_helper_funcs *funcs; funcs = crtc->helper_private; @@ -2716,7 +2979,18 @@ void drm_atomic_helper_commit_planes(struct drm_device *dev, if (active_only && !new_crtc_state->active) continue; - funcs->atomic_flush(crtc, old_state); + funcs->atomic_flush(crtc, state); + } + + /* + * Signal end of framebuffer access here before hw_done. After hw_done, + * a later commit might have already released the plane state. + */ + for_each_old_plane_in_state(state, plane, old_plane_state, i) { + const struct drm_plane_helper_funcs *funcs = plane->helper_private; + + if (funcs->end_fb_access) + funcs->end_fb_access(plane, old_plane_state); } } EXPORT_SYMBOL(drm_atomic_helper_commit_planes); @@ -2762,6 +3036,7 @@ drm_atomic_helper_commit_planes_on_crtc(struct drm_crtc_state *old_crtc_state) struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(old_state, plane); const struct drm_plane_helper_funcs *plane_funcs; + bool disabling; plane_funcs = plane->helper_private; @@ -2771,12 +3046,18 @@ drm_atomic_helper_commit_planes_on_crtc(struct drm_crtc_state *old_crtc_state) WARN_ON(new_plane_state->crtc && new_plane_state->crtc != crtc); - if (drm_atomic_plane_disabling(old_plane_state, new_plane_state) && - plane_funcs->atomic_disable) + disabling = drm_atomic_plane_disabling(old_plane_state, new_plane_state); + + if (disabling && plane_funcs->atomic_disable) { plane_funcs->atomic_disable(plane, old_state); - else if (new_plane_state->crtc || - drm_atomic_plane_disabling(old_plane_state, new_plane_state)) + } else if (new_plane_state->crtc || disabling) { plane_funcs->atomic_update(plane, old_state); + + if (!disabling && plane_funcs->atomic_enable) { + if (drm_atomic_plane_enabling(old_plane_state, new_plane_state)) + plane_funcs->atomic_enable(plane, old_state); + } + } } if (crtc_funcs && crtc_funcs->atomic_flush) @@ -2832,46 +3113,28 @@ EXPORT_SYMBOL(drm_atomic_helper_disable_planes_on_crtc); /** * drm_atomic_helper_cleanup_planes - cleanup plane resources after commit * @dev: DRM device - * @old_state: atomic state object with old state structures + * @state: atomic state object being committed * * This function cleans up plane state, specifically framebuffers, from the old - * configuration. Hence the old configuration must be perserved in @old_state to + * configuration. Hence the old configuration must be perserved in @state to * be able to call this function. * - * This function must also be called on the new state when the atomic update - * fails at any point after calling drm_atomic_helper_prepare_planes(). + * This function may not be called on the new state when the atomic update + * fails at any point after calling drm_atomic_helper_prepare_planes(). Use + * drm_atomic_helper_unprepare_planes() in this case. */ void drm_atomic_helper_cleanup_planes(struct drm_device *dev, - struct drm_atomic_state *old_state) + struct drm_atomic_state *state) { struct drm_plane *plane; - struct drm_plane_state *old_plane_state, *new_plane_state; + struct drm_plane_state *old_plane_state; int i; - for_each_oldnew_plane_in_state(old_state, plane, old_plane_state, new_plane_state, i) { + for_each_old_plane_in_state(state, plane, old_plane_state, i) { const struct drm_plane_helper_funcs *funcs = plane->helper_private; - if (funcs->end_fb_access) - funcs->end_fb_access(plane, new_plane_state); - } - - for_each_oldnew_plane_in_state(old_state, plane, old_plane_state, new_plane_state, i) { - const struct drm_plane_helper_funcs *funcs; - struct drm_plane_state *plane_state; - - /* - * This might be called before swapping when commit is aborted, - * in which case we have to cleanup the new state. - */ - if (old_plane_state == plane->state) - plane_state = new_plane_state; - else - plane_state = old_plane_state; - - funcs = plane->helper_private; - if (funcs->cleanup_fb) - funcs->cleanup_fb(plane, plane_state); + funcs->cleanup_fb(plane, old_plane_state); } } EXPORT_SYMBOL(drm_atomic_helper_cleanup_planes); @@ -2907,7 +3170,6 @@ EXPORT_SYMBOL(drm_atomic_helper_cleanup_planes); * don't pass the right state structures to the callbacks. * * Returns: - * * Returns 0 on success. Can return -ERESTARTSYS when @stall is true and the * waiting for the previous commits has been interrupted. */ @@ -2915,12 +3177,15 @@ int drm_atomic_helper_swap_state(struct drm_atomic_state *state, bool stall) { int i, ret; + unsigned long flags = 0; struct drm_connector *connector; struct drm_connector_state *old_conn_state, *new_conn_state; struct drm_crtc *crtc; struct drm_crtc_state *old_crtc_state, *new_crtc_state; struct drm_plane *plane; struct drm_plane_state *old_plane_state, *new_plane_state; + struct drm_colorop *colorop; + struct drm_colorop_state *old_colorop_state, *new_colorop_state; struct drm_crtc_commit *commit; struct drm_private_obj *obj; struct drm_private_state *old_obj_state, *new_obj_state; @@ -2975,7 +3240,7 @@ int drm_atomic_helper_swap_state(struct drm_atomic_state *state, old_conn_state->state = state; new_conn_state->state = NULL; - state->connectors[i].state = old_conn_state; + state->connectors[i].state_to_destroy = old_conn_state; connector->state = new_conn_state; } @@ -2985,7 +3250,7 @@ int drm_atomic_helper_swap_state(struct drm_atomic_state *state, old_crtc_state->state = state; new_crtc_state->state = NULL; - state->crtcs[i].state = old_crtc_state; + state->crtcs[i].state_to_destroy = old_crtc_state; crtc->state = new_crtc_state; if (new_crtc_state->commit) { @@ -2998,15 +3263,27 @@ int drm_atomic_helper_swap_state(struct drm_atomic_state *state, } } + for_each_oldnew_colorop_in_state(state, colorop, old_colorop_state, new_colorop_state, i) { + WARN_ON(colorop->state != old_colorop_state); + + old_colorop_state->state = state; + new_colorop_state->state = NULL; + + state->colorops[i].state = old_colorop_state; + colorop->state = new_colorop_state; + } + + drm_panic_lock(state->dev, flags); for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) { WARN_ON(plane->state != old_plane_state); old_plane_state->state = state; new_plane_state->state = NULL; - state->planes[i].state = old_plane_state; + state->planes[i].state_to_destroy = old_plane_state; plane->state = new_plane_state; } + drm_panic_unlock(state->dev, flags); for_each_oldnew_private_obj_in_state(state, obj, old_obj_state, new_obj_state, i) { WARN_ON(obj->state != old_obj_state); @@ -3014,7 +3291,7 @@ int drm_atomic_helper_swap_state(struct drm_atomic_state *state, old_obj_state->state = state; new_obj_state->state = NULL; - state->private_objs[i].state = old_obj_state; + state->private_objs[i].state_to_destroy = old_obj_state; obj->state = new_obj_state; } @@ -3090,7 +3367,7 @@ fail: EXPORT_SYMBOL(drm_atomic_helper_update_plane); /** - * drm_atomic_helper_disable_plane - Helper for primary plane disable using * atomic + * drm_atomic_helper_disable_plane - Helper for primary plane disable using atomic * @plane: plane to disable * @ctx: lock acquire context * @@ -3260,6 +3537,54 @@ free: EXPORT_SYMBOL(drm_atomic_helper_disable_all); /** + * drm_atomic_helper_reset_crtc - reset the active outputs of a CRTC + * @crtc: DRM CRTC + * @ctx: lock acquisition context + * + * Reset the active outputs by indicating that connectors have changed. + * This implies a reset of all active components available between the CRTC and + * connectors. + * + * A variant of this function exists with + * drm_bridge_helper_reset_crtc(), dedicated to bridges. + * + * NOTE: This relies on resetting &drm_crtc_state.connectors_changed. + * For drivers which optimize out unnecessary modesets this will result in + * a no-op commit, achieving nothing. + * + * Returns: + * 0 on success or a negative error code on failure. + */ +int drm_atomic_helper_reset_crtc(struct drm_crtc *crtc, + struct drm_modeset_acquire_ctx *ctx) +{ + struct drm_atomic_state *state; + struct drm_crtc_state *crtc_state; + int ret; + + state = drm_atomic_state_alloc(crtc->dev); + if (!state) + return -ENOMEM; + + state->acquire_ctx = ctx; + + crtc_state = drm_atomic_get_crtc_state(state, crtc); + if (IS_ERR(crtc_state)) { + ret = PTR_ERR(crtc_state); + goto out; + } + + crtc_state->connectors_changed = true; + + ret = drm_atomic_commit(state); +out: + drm_atomic_state_put(state); + + return ret; +} +EXPORT_SYMBOL(drm_atomic_helper_reset_crtc); + +/** * drm_atomic_helper_shutdown - shutdown all CRTC * @dev: DRM device * @@ -3268,13 +3593,16 @@ EXPORT_SYMBOL(drm_atomic_helper_disable_all); * that also takes a snapshot of the modeset state to be restored on resume. * * This is just a convenience wrapper around drm_atomic_helper_disable_all(), - * and it is the atomic version of drm_crtc_force_disable_all(). + * and it is the atomic version of drm_helper_force_disable_all(). */ void drm_atomic_helper_shutdown(struct drm_device *dev) { struct drm_modeset_acquire_ctx ctx; int ret; + if (dev == NULL) + return; + DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret); ret = drm_atomic_helper_disable_all(dev, &ctx); |