[PATCH] drm/atomic: Add for_each_{connector, crtc, plane}_in_state helper macros
Daniel Vetter
daniel at ffwll.ch
Sat Apr 11 09:50:37 PDT 2015
On Fri, Apr 10, 2015 at 02:58:39PM +0300, Ander Conselvan de Oliveira wrote:
> This saves some typing whenever a iteration over all the connector,
> crtc or plane states in the atomic state is written, which happens
> quite often.
>
> Cc: dri-devel at lists.freedesktop.org
> Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira at intel.com>
Applied to drm-misc, thanks.
-Daniel
> ---
> drivers/gpu/drm/drm_atomic.c | 62 +++------
> drivers/gpu/drm/drm_atomic_helper.c | 253 +++++++++++-------------------------
> include/drm/drm_atomic.h | 24 ++++
> 3 files changed, 117 insertions(+), 222 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
> index 57efdbe..68236bd 100644
> --- a/drivers/gpu/drm/drm_atomic.c
> +++ b/drivers/gpu/drm/drm_atomic.c
> @@ -909,14 +909,13 @@ int
> drm_atomic_connectors_for_crtc(struct drm_atomic_state *state,
> struct drm_crtc *crtc)
> {
> - int i, num_connected_connectors = 0;
> -
> - for (i = 0; i < state->num_connector; i++) {
> - struct drm_connector_state *conn_state;
> + struct drm_connector *connector;
> + struct drm_connector_state *conn_state;
>
> - conn_state = state->connector_states[i];
> + int i, num_connected_connectors = 0;
>
> - if (conn_state && conn_state->crtc == crtc)
> + for_each_connector_in_state(state, connector, conn_state, i) {
> + if (conn_state->crtc == crtc)
> num_connected_connectors++;
> }
>
> @@ -968,19 +967,16 @@ int drm_atomic_check_only(struct drm_atomic_state *state)
> {
> struct drm_device *dev = state->dev;
> struct drm_mode_config *config = &dev->mode_config;
> - int nplanes = config->num_total_plane;
> - int ncrtcs = config->num_crtc;
> + struct drm_plane *plane;
> + struct drm_plane_state *plane_state;
> + struct drm_crtc *crtc;
> + struct drm_crtc_state *crtc_state;
> int i, ret = 0;
>
> DRM_DEBUG_ATOMIC("checking %p\n", state);
>
> - for (i = 0; i < nplanes; i++) {
> - struct drm_plane *plane = state->planes[i];
> -
> - if (!plane)
> - continue;
> -
> - ret = drm_atomic_plane_check(plane, state->plane_states[i]);
> + for_each_plane_in_state(state, plane, plane_state, i) {
> + ret = drm_atomic_plane_check(plane, plane_state);
> if (ret) {
> DRM_DEBUG_ATOMIC("[PLANE:%d] atomic core check failed\n",
> plane->base.id);
> @@ -988,13 +984,8 @@ int drm_atomic_check_only(struct drm_atomic_state *state)
> }
> }
>
> - for (i = 0; i < ncrtcs; i++) {
> - struct drm_crtc *crtc = state->crtcs[i];
> -
> - if (!crtc)
> - continue;
> -
> - ret = drm_atomic_crtc_check(crtc, state->crtc_states[i]);
> + for_each_crtc_in_state(state, crtc, crtc_state, i) {
> + ret = drm_atomic_crtc_check(crtc, crtc_state);
> if (ret) {
> DRM_DEBUG_ATOMIC("[CRTC:%d] atomic core check failed\n",
> crtc->base.id);
> @@ -1006,13 +997,7 @@ int drm_atomic_check_only(struct drm_atomic_state *state)
> ret = config->funcs->atomic_check(state->dev, state);
>
> if (!state->allow_modeset) {
> - for (i = 0; i < ncrtcs; i++) {
> - struct drm_crtc *crtc = state->crtcs[i];
> - struct drm_crtc_state *crtc_state = state->crtc_states[i];
> -
> - if (!crtc)
> - continue;
> -
> + for_each_crtc_in_state(state, crtc, crtc_state, i) {
> if (crtc_state->mode_changed ||
> crtc_state->active_changed) {
> DRM_DEBUG_ATOMIC("[CRTC:%d] requires full modeset\n",
> @@ -1210,6 +1195,8 @@ int drm_mode_atomic_ioctl(struct drm_device *dev,
> struct drm_atomic_state *state;
> struct drm_modeset_acquire_ctx ctx;
> struct drm_plane *plane;
> + struct drm_crtc *crtc;
> + struct drm_crtc_state *crtc_state;
> unsigned plane_mask = 0;
> int ret = 0;
> unsigned int i, j;
> @@ -1313,15 +1300,9 @@ retry:
> }
>
> if (arg->flags & DRM_MODE_PAGE_FLIP_EVENT) {
> - int ncrtcs = dev->mode_config.num_crtc;
> -
> - for (i = 0; i < ncrtcs; i++) {
> - struct drm_crtc_state *crtc_state = state->crtc_states[i];
> + for_each_crtc_in_state(state, crtc, crtc_state, i) {
> struct drm_pending_vblank_event *e;
>
> - if (!crtc_state)
> - continue;
> -
> e = create_vblank_event(dev, file_priv, arg->user_data);
> if (!e) {
> ret = -ENOMEM;
> @@ -1373,14 +1354,7 @@ fail:
> goto backoff;
>
> if (arg->flags & DRM_MODE_PAGE_FLIP_EVENT) {
> - int ncrtcs = dev->mode_config.num_crtc;
> -
> - for (i = 0; i < ncrtcs; i++) {
> - struct drm_crtc_state *crtc_state = state->crtc_states[i];
> -
> - if (!crtc_state)
> - continue;
> -
> + for_each_crtc_in_state(state, crtc, crtc_state, i) {
> destroy_vblank_event(dev, file_priv, crtc_state->event);
> crtc_state->event = NULL;
> }
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
> index e67d4d6..a2fb0d4 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -248,30 +248,24 @@ update_connector_routing(struct drm_atomic_state *state, int conn_idx)
> static int
> mode_fixup(struct drm_atomic_state *state)
> {
> - int ncrtcs = state->dev->mode_config.num_crtc;
> + struct drm_crtc *crtc;
> struct drm_crtc_state *crtc_state;
> + struct drm_connector *connector;
> struct drm_connector_state *conn_state;
> int i;
> bool ret;
>
> - for (i = 0; i < ncrtcs; i++) {
> - crtc_state = state->crtc_states[i];
> -
> - if (!crtc_state || !crtc_state->mode_changed)
> + for_each_crtc_in_state(state, crtc, crtc_state, i) {
> + if (!crtc_state->mode_changed)
> continue;
>
> drm_mode_copy(&crtc_state->adjusted_mode, &crtc_state->mode);
> }
>
> - for (i = 0; i < state->num_connector; i++) {
> + for_each_connector_in_state(state, connector, conn_state, i) {
> const struct drm_encoder_helper_funcs *funcs;
> struct drm_encoder *encoder;
>
> - conn_state = state->connector_states[i];
> -
> - if (!conn_state)
> - continue;
> -
> WARN_ON(!!conn_state->best_encoder != !!conn_state->crtc);
>
> if (!conn_state->crtc || !conn_state->best_encoder)
> @@ -316,14 +310,10 @@ mode_fixup(struct drm_atomic_state *state)
> }
> }
>
> - for (i = 0; i < ncrtcs; i++) {
> + for_each_crtc_in_state(state, crtc, crtc_state, i) {
> const struct drm_crtc_helper_funcs *funcs;
> - struct drm_crtc *crtc;
>
> - crtc_state = state->crtc_states[i];
> - crtc = state->crtcs[i];
> -
> - if (!crtc_state || !crtc_state->mode_changed)
> + if (!crtc_state->mode_changed)
> continue;
>
> funcs = crtc->helper_private;
> @@ -371,18 +361,13 @@ int
> drm_atomic_helper_check_modeset(struct drm_device *dev,
> struct drm_atomic_state *state)
> {
> - int ncrtcs = dev->mode_config.num_crtc;
> struct drm_crtc *crtc;
> struct drm_crtc_state *crtc_state;
> + struct drm_connector *connector;
> + struct drm_connector_state *connector_state;
> int i, ret;
>
> - for (i = 0; i < ncrtcs; i++) {
> - crtc = state->crtcs[i];
> - crtc_state = state->crtc_states[i];
> -
> - if (!crtc)
> - continue;
> -
> + for_each_crtc_in_state(state, crtc, crtc_state, i) {
> if (!drm_mode_equal(&crtc->state->mode, &crtc_state->mode)) {
> DRM_DEBUG_ATOMIC("[CRTC:%d] mode changed\n",
> crtc->base.id);
> @@ -396,7 +381,7 @@ drm_atomic_helper_check_modeset(struct drm_device *dev,
> }
> }
>
> - for (i = 0; i < state->num_connector; i++) {
> + for_each_connector_in_state(state, connector, connector_state, i) {
> /*
> * This only sets crtc->mode_changed for routing changes,
> * drivers must set crtc->mode_changed themselves when connector
> @@ -413,15 +398,9 @@ drm_atomic_helper_check_modeset(struct drm_device *dev,
> * configuration. This must be done before calling mode_fixup in case a
> * crtc only changed its mode but has the same set of connectors.
> */
> - for (i = 0; i < ncrtcs; i++) {
> + for_each_crtc_in_state(state, crtc, crtc_state, i) {
> int num_connectors;
>
> - crtc = state->crtcs[i];
> - crtc_state = state->crtc_states[i];
> -
> - if (!crtc)
> - continue;
> -
> /*
> * We must set ->active_changed after walking connectors for
> * otherwise an update that only changes active would result in
> @@ -476,17 +455,14 @@ int
> drm_atomic_helper_check_planes(struct drm_device *dev,
> struct drm_atomic_state *state)
> {
> - int nplanes = dev->mode_config.num_total_plane;
> - int ncrtcs = dev->mode_config.num_crtc;
> + struct drm_crtc *crtc;
> + struct drm_crtc_state *crtc_state;
> + struct drm_plane *plane;
> + struct drm_plane_state *plane_state;
> int i, ret = 0;
>
> - for (i = 0; i < nplanes; i++) {
> + for_each_plane_in_state(state, plane, plane_state, i) {
> const struct drm_plane_helper_funcs *funcs;
> - struct drm_plane *plane = state->planes[i];
> - struct drm_plane_state *plane_state = state->plane_states[i];
> -
> - if (!plane)
> - continue;
>
> funcs = plane->helper_private;
>
> @@ -503,12 +479,8 @@ drm_atomic_helper_check_planes(struct drm_device *dev,
> }
> }
>
> - for (i = 0; i < ncrtcs; i++) {
> + for_each_crtc_in_state(state, crtc, crtc_state, i) {
> const struct drm_crtc_helper_funcs *funcs;
> - struct drm_crtc *crtc = state->crtcs[i];
> -
> - if (!crtc)
> - continue;
>
> funcs = crtc->helper_private;
>
> @@ -567,22 +539,20 @@ EXPORT_SYMBOL(drm_atomic_helper_check);
> static void
> disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state)
> {
> - int ncrtcs = old_state->dev->mode_config.num_crtc;
> + struct drm_connector *connector;
> + struct drm_connector_state *old_conn_state;
> + struct drm_crtc *crtc;
> + struct drm_crtc_state *old_crtc_state;
> int i;
>
> - for (i = 0; i < old_state->num_connector; i++) {
> + for_each_connector_in_state(old_state, connector, old_conn_state, i) {
> const struct drm_encoder_helper_funcs *funcs;
> - struct drm_connector_state *old_conn_state;
> - struct drm_connector *connector;
> struct drm_encoder *encoder;
> struct drm_crtc_state *old_crtc_state;
>
> - old_conn_state = old_state->connector_states[i];
> - connector = old_state->connectors[i];
> -
> /* Shut down everything that's in the changeset and currently
> * still on. So need to check the old, saved state. */
> - if (!old_conn_state || !old_conn_state->crtc)
> + if (!old_conn_state->crtc)
> continue;
>
> old_crtc_state = old_state->crtc_states[drm_crtc_index(old_conn_state->crtc)];
> @@ -623,16 +593,11 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state)
> encoder->bridge->funcs->post_disable(encoder->bridge);
> }
>
> - for (i = 0; i < ncrtcs; i++) {
> + for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) {
> const struct drm_crtc_helper_funcs *funcs;
> - struct drm_crtc *crtc;
> - struct drm_crtc_state *old_crtc_state;
> -
> - crtc = old_state->crtcs[i];
> - old_crtc_state = old_state->crtc_states[i];
>
> /* Shut down everything that needs a full modeset. */
> - if (!crtc || !needs_modeset(crtc->state))
> + if (!needs_modeset(crtc->state))
> continue;
>
> if (!old_crtc_state->active)
> @@ -657,16 +622,15 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state)
> static void
> set_routing_links(struct drm_device *dev, struct drm_atomic_state *old_state)
> {
> - int ncrtcs = old_state->dev->mode_config.num_crtc;
> + struct drm_connector *connector;
> + struct drm_connector_state *old_conn_state;
> + struct drm_crtc *crtc;
> + struct drm_crtc_state *old_crtc_state;
> int i;
>
> /* clear out existing links */
> - for (i = 0; i < old_state->num_connector; i++) {
> - struct drm_connector *connector;
> -
> - connector = old_state->connectors[i];
> -
> - if (!connector || !connector->encoder)
> + for_each_connector_in_state(old_state, connector, old_conn_state, i) {
> + if (!connector->encoder)
> continue;
>
> WARN_ON(!connector->encoder->crtc);
> @@ -676,12 +640,8 @@ set_routing_links(struct drm_device *dev, struct drm_atomic_state *old_state)
> }
>
> /* set new links */
> - for (i = 0; i < old_state->num_connector; i++) {
> - struct drm_connector *connector;
> -
> - connector = old_state->connectors[i];
> -
> - if (!connector || !connector->state->crtc)
> + for_each_connector_in_state(old_state, connector, old_conn_state, i) {
> + if (!connector->state->crtc)
> continue;
>
> if (WARN_ON(!connector->state->best_encoder))
> @@ -692,14 +652,7 @@ set_routing_links(struct drm_device *dev, struct drm_atomic_state *old_state)
> }
>
> /* set legacy state in the crtc structure */
> - for (i = 0; i < ncrtcs; i++) {
> - struct drm_crtc *crtc;
> -
> - crtc = old_state->crtcs[i];
> -
> - if (!crtc)
> - continue;
> -
> + for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) {
> crtc->mode = crtc->state->mode;
> crtc->enabled = crtc->state->enable;
> crtc->x = crtc->primary->state->src_x >> 16;
> @@ -710,16 +663,16 @@ set_routing_links(struct drm_device *dev, struct drm_atomic_state *old_state)
> static void
> crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *old_state)
> {
> - int ncrtcs = old_state->dev->mode_config.num_crtc;
> + struct drm_crtc *crtc;
> + struct drm_crtc_state *old_crtc_state;
> + struct drm_connector *connector;
> + struct drm_connector_state *old_conn_state;
> int i;
>
> - for (i = 0; i < ncrtcs; i++) {
> + for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) {
> const struct drm_crtc_helper_funcs *funcs;
> - struct drm_crtc *crtc;
> -
> - crtc = old_state->crtcs[i];
>
> - if (!crtc || !crtc->state->mode_changed)
> + if (!crtc->state->mode_changed)
> continue;
>
> funcs = crtc->helper_private;
> @@ -732,16 +685,13 @@ crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *old_state)
> }
> }
>
> - for (i = 0; i < old_state->num_connector; i++) {
> + for_each_connector_in_state(old_state, connector, old_conn_state, i) {
> const struct drm_encoder_helper_funcs *funcs;
> - struct drm_connector *connector;
> struct drm_crtc_state *new_crtc_state;
> struct drm_encoder *encoder;
> struct drm_display_mode *mode, *adjusted_mode;
>
> - connector = old_state->connectors[i];
> -
> - if (!connector || !connector->state->best_encoder)
> + if (!connector->state->best_encoder)
> continue;
>
> encoder = connector->state->best_encoder;
> @@ -809,17 +759,17 @@ EXPORT_SYMBOL(drm_atomic_helper_commit_modeset_disables);
> void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev,
> struct drm_atomic_state *old_state)
> {
> - int ncrtcs = old_state->dev->mode_config.num_crtc;
> + struct drm_crtc *crtc;
> + struct drm_crtc_state *old_crtc_state;
> + struct drm_connector *connector;
> + struct drm_connector_state *old_conn_state;
> int i;
>
> - for (i = 0; i < ncrtcs; i++) {
> + for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) {
> const struct drm_crtc_helper_funcs *funcs;
> - struct drm_crtc *crtc;
> -
> - crtc = old_state->crtcs[i];
>
> /* Need to filter out CRTCs where only planes change. */
> - if (!crtc || !needs_modeset(crtc->state))
> + if (!needs_modeset(crtc->state))
> continue;
>
> if (!crtc->state->active)
> @@ -838,14 +788,11 @@ void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev,
> }
> }
>
> - for (i = 0; i < old_state->num_connector; i++) {
> + for_each_connector_in_state(old_state, connector, old_conn_state, i) {
> const struct drm_encoder_helper_funcs *funcs;
> - struct drm_connector *connector;
> struct drm_encoder *encoder;
>
> - connector = old_state->connectors[i];
> -
> - if (!connector || !connector->state->best_encoder)
> + if (!connector->state->best_encoder)
> continue;
>
> if (!connector->state->crtc->state->active ||
> @@ -879,13 +826,12 @@ EXPORT_SYMBOL(drm_atomic_helper_commit_modeset_enables);
> static void wait_for_fences(struct drm_device *dev,
> struct drm_atomic_state *state)
> {
> - int nplanes = dev->mode_config.num_total_plane;
> + struct drm_plane *plane;
> + struct drm_plane_state *plane_state;
> int i;
>
> - for (i = 0; i < nplanes; i++) {
> - struct drm_plane *plane = state->planes[i];
> -
> - if (!plane || !plane->state->fence)
> + for_each_plane_in_state(state, plane, plane_state, i) {
> + if (!plane->state->fence)
> continue;
>
> WARN_ON(!plane->state->fb);
> @@ -902,16 +848,9 @@ static bool framebuffer_changed(struct drm_device *dev,
> {
> struct drm_plane *plane;
> struct drm_plane_state *old_plane_state;
> - int nplanes = old_state->dev->mode_config.num_total_plane;
> int i;
>
> - for (i = 0; i < nplanes; i++) {
> - plane = old_state->planes[i];
> - old_plane_state = old_state->plane_states[i];
> -
> - if (!plane)
> - continue;
> -
> + for_each_plane_in_state(old_state, plane, old_plane_state, i) {
> if (plane->state->crtc != crtc &&
> old_plane_state->crtc != crtc)
> continue;
> @@ -940,16 +879,9 @@ drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
> {
> struct drm_crtc *crtc;
> struct drm_crtc_state *old_crtc_state;
> - int ncrtcs = old_state->dev->mode_config.num_crtc;
> int i, ret;
>
> - for (i = 0; i < ncrtcs; i++) {
> - crtc = old_state->crtcs[i];
> - old_crtc_state = old_state->crtc_states[i];
> -
> - if (!crtc)
> - continue;
> -
> + for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) {
> /* No one cares about the old state, so abuse it for tracking
> * and store whether we hold a vblank reference (and should do a
> * vblank wait) in the ->enable boolean. */
> @@ -974,11 +906,8 @@ drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
> old_crtc_state->last_vblank_count = drm_vblank_count(dev, i);
> }
>
> - for (i = 0; i < ncrtcs; i++) {
> - crtc = old_state->crtcs[i];
> - old_crtc_state = old_state->crtc_states[i];
> -
> - if (!crtc || !old_crtc_state->enable)
> + for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) {
> + if (!old_crtc_state->enable)
> continue;
>
> ret = wait_event_timeout(dev->vblank[i].queue,
> @@ -1176,16 +1105,14 @@ EXPORT_SYMBOL(drm_atomic_helper_prepare_planes);
> void drm_atomic_helper_commit_planes(struct drm_device *dev,
> struct drm_atomic_state *old_state)
> {
> - int nplanes = dev->mode_config.num_total_plane;
> - int ncrtcs = dev->mode_config.num_crtc;
> + struct drm_crtc *crtc;
> + struct drm_crtc_state *old_crtc_state;
> + struct drm_plane *plane;
> + struct drm_plane_state *old_plane_state;
> int i;
>
> - for (i = 0; i < ncrtcs; i++) {
> + for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) {
> const struct drm_crtc_helper_funcs *funcs;
> - struct drm_crtc *crtc = old_state->crtcs[i];
> -
> - if (!crtc)
> - continue;
>
> funcs = crtc->helper_private;
>
> @@ -1195,13 +1122,8 @@ void drm_atomic_helper_commit_planes(struct drm_device *dev,
> funcs->atomic_begin(crtc);
> }
>
> - for (i = 0; i < nplanes; i++) {
> + for_each_plane_in_state(old_state, plane, old_plane_state, i) {
> const struct drm_plane_helper_funcs *funcs;
> - struct drm_plane *plane = old_state->planes[i];
> - struct drm_plane_state *old_plane_state;
> -
> - if (!plane)
> - continue;
>
> funcs = plane->helper_private;
>
> @@ -1220,12 +1142,8 @@ void drm_atomic_helper_commit_planes(struct drm_device *dev,
> funcs->atomic_update(plane, old_plane_state);
> }
>
> - for (i = 0; i < ncrtcs; i++) {
> + for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) {
> const struct drm_crtc_helper_funcs *funcs;
> - struct drm_crtc *crtc = old_state->crtcs[i];
> -
> - if (!crtc)
> - continue;
>
> funcs = crtc->helper_private;
>
> @@ -1252,18 +1170,14 @@ EXPORT_SYMBOL(drm_atomic_helper_commit_planes);
> void drm_atomic_helper_cleanup_planes(struct drm_device *dev,
> struct drm_atomic_state *old_state)
> {
> - int nplanes = dev->mode_config.num_total_plane;
> + struct drm_plane *plane;
> + struct drm_plane_state *plane_state;
> int i;
>
> - for (i = 0; i < nplanes; i++) {
> + for_each_plane_in_state(old_state, plane, plane_state, i) {
> const struct drm_plane_helper_funcs *funcs;
> - struct drm_plane *plane = old_state->planes[i];
> - struct drm_plane_state *plane_state = old_state->plane_states[i];
> struct drm_framebuffer *old_fb;
>
> - if (!plane)
> - continue;
> -
> funcs = plane->helper_private;
>
> old_fb = plane_state->fb;
> @@ -1512,8 +1426,10 @@ static int update_output_state(struct drm_atomic_state *state,
> struct drm_mode_set *set)
> {
> struct drm_device *dev = set->crtc->dev;
> + struct drm_crtc *crtc;
> + struct drm_crtc_state *crtc_state;
> + struct drm_connector *connector;
> struct drm_connector_state *conn_state;
> - int ncrtcs = state->dev->mode_config.num_crtc;
> int ret, i, j;
>
> ret = drm_modeset_lock(&dev->mode_config.connection_mutex,
> @@ -1529,27 +1445,14 @@ static int update_output_state(struct drm_atomic_state *state,
> return PTR_ERR(conn_state);
> }
>
> - for (i = 0; i < ncrtcs; i++) {
> - struct drm_crtc *crtc = state->crtcs[i];
> -
> - if (!crtc)
> - continue;
> -
> + for_each_crtc_in_state(state, crtc, crtc_state, i) {
> ret = drm_atomic_add_affected_connectors(state, crtc);
> if (ret)
> return ret;
> }
>
> /* Then recompute connector->crtc links and crtc enabling state. */
> - for (i = 0; i < state->num_connector; i++) {
> - struct drm_connector *connector;
> -
> - connector = state->connectors[i];
> - conn_state = state->connector_states[i];
> -
> - if (!connector)
> - continue;
> -
> + for_each_connector_in_state(state, connector, conn_state, i) {
> if (conn_state->crtc == set->crtc) {
> ret = drm_atomic_set_crtc_for_connector(conn_state,
> NULL);
> @@ -1568,13 +1471,7 @@ static int update_output_state(struct drm_atomic_state *state,
> }
> }
>
> - for (i = 0; i < ncrtcs; i++) {
> - struct drm_crtc *crtc = state->crtcs[i];
> - struct drm_crtc_state *crtc_state = state->crtc_states[i];
> -
> - if (!crtc)
> - continue;
> -
> + for_each_crtc_in_state(state, crtc, crtc_state, i) {
> /* Don't update ->enable for the CRTC in the set_config request,
> * since a mismatch would indicate a bug in the upper layers.
> * The actual modeset code later on will catch any
> diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
> index 51168a8..c1571034 100644
> --- a/include/drm/drm_atomic.h
> +++ b/include/drm/drm_atomic.h
> @@ -75,4 +75,28 @@ int __must_check drm_atomic_check_only(struct drm_atomic_state *state);
> int __must_check drm_atomic_commit(struct drm_atomic_state *state);
> int __must_check drm_atomic_async_commit(struct drm_atomic_state *state);
>
> +#define for_each_connector_in_state(state, connector, connector_state, __i) \
> + for ((__i) = 0; \
> + (connector) = (state)->connectors[__i], \
> + (connector_state) = (state)->connector_states[__i], \
> + (__i) < (state)->num_connector; \
> + (__i)++) \
> + if (connector)
> +
> +#define for_each_crtc_in_state(state, crtc, crtc_state, __i) \
> + for ((__i) = 0; \
> + (crtc) = (state)->crtcs[__i], \
> + (crtc_state) = (state)->crtc_states[__i], \
> + (__i) < (state)->dev->mode_config.num_crtc; \
> + (__i)++) \
> + if (crtc_state)
> +
> +#define for_each_plane_in_state(state, plane, plane_state, __i) \
> + for ((__i) = 0; \
> + (plane) = (state)->planes[__i], \
> + (plane_state) = (state)->plane_states[__i], \
> + (__i) < (state)->dev->mode_config.num_total_plane; \
> + (__i)++) \
> + if (plane_state)
> +
> #endif /* DRM_ATOMIC_H_ */
> --
> 2.1.0
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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