On Sat, Apr 14, 2018 at 01:52:59PM +0200, Noralf Trønnes wrote:
> Prepare for moving drm_fb_helper modesetting code to drm_client.
> drm_client will be linked to drm.ko, so move
> __drm_atomic_helper_disable_plane() and __drm_atomic_helper_set_config()
> out of drm_kms_helper.ko.
>
> Signed-off-by: Noralf Trønnes <nor...@tronnes.org>
> ---
> drivers/gpu/drm/drm_atomic.c | 168
> ++++++++++++++++++++++++++++++++++++
> drivers/gpu/drm/drm_atomic_helper.c | 168
> +-----------------------------------
> drivers/gpu/drm/drm_fb_helper.c | 8 +-
> include/drm/drm_atomic.h | 5 ++
> include/drm/drm_atomic_helper.h | 4 -
> 5 files changed, 179 insertions(+), 174 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
> index 7d25c42f22db..1fb602b6c8b1 100644
> --- a/drivers/gpu/drm/drm_atomic.c
> +++ b/drivers/gpu/drm/drm_atomic.c
> @@ -2060,6 +2060,174 @@ void drm_atomic_clean_old_fb(struct drm_device *dev,
> }
> EXPORT_SYMBOL(drm_atomic_clean_old_fb);
>
> +/* just used from drm_client and atomic-helper: */
In that case please put the prototype for these into the internal header
drm_crtc_internal.h. Just to avoid drivers abusing this (they really
shouldn't).
-Daniel
> +int drm_atomic_disable_plane(struct drm_plane *plane,
> + struct drm_plane_state *plane_state)
> +{
> + int ret;
> +
> + ret = drm_atomic_set_crtc_for_plane(plane_state, NULL);
> + if (ret != 0)
> + return ret;
> +
> + drm_atomic_set_fb_for_plane(plane_state, NULL);
> + plane_state->crtc_x = 0;
> + plane_state->crtc_y = 0;
> + plane_state->crtc_w = 0;
> + plane_state->crtc_h = 0;
> + plane_state->src_x = 0;
> + plane_state->src_y = 0;
> + plane_state->src_w = 0;
> + plane_state->src_h = 0;
> +
> + return 0;
> +}
> +EXPORT_SYMBOL(drm_atomic_disable_plane);
> +
> +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 *new_crtc_state;
> + struct drm_connector *connector;
> + struct drm_connector_state *new_conn_state;
> + int ret, i;
> +
> + ret = drm_modeset_lock(&dev->mode_config.connection_mutex,
> + state->acquire_ctx);
> + if (ret)
> + return ret;
> +
> + /* First disable all connectors on the target crtc. */
> + ret = drm_atomic_add_affected_connectors(state, set->crtc);
> + if (ret)
> + return ret;
> +
> + for_each_new_connector_in_state(state, connector, new_conn_state, i) {
> + if (new_conn_state->crtc == set->crtc) {
> + ret = drm_atomic_set_crtc_for_connector(new_conn_state,
> + NULL);
> + if (ret)
> + return ret;
> +
> + /* Make sure legacy setCrtc always re-trains */
> + new_conn_state->link_status = DRM_LINK_STATUS_GOOD;
> + }
> + }
> +
> + /* Then set all connectors from set->connectors on the target crtc */
> + for (i = 0; i < set->num_connectors; i++) {
> + new_conn_state = drm_atomic_get_connector_state(state,
> + set->connectors[i]);
> + if (IS_ERR(new_conn_state))
> + return PTR_ERR(new_conn_state);
> +
> + ret = drm_atomic_set_crtc_for_connector(new_conn_state,
> + set->crtc);
> + if (ret)
> + return ret;
> + }
> +
> + for_each_new_crtc_in_state(state, crtc, new_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
> + * inconsistencies here.
> + */
> + if (crtc == set->crtc)
> + continue;
> +
> + if (!new_crtc_state->connector_mask) {
> + ret = drm_atomic_set_mode_prop_for_crtc(new_crtc_state,
> + NULL);
> + if (ret < 0)
> + return ret;
> +
> + new_crtc_state->active = false;
> + }
> + }
> +
> + return 0;
> +}
> +
> +/* just used from drm_client and atomic-helper: */
> +int drm_atomic_set_config(struct drm_mode_set *set,
> + struct drm_atomic_state *state)
> +{
> + struct drm_crtc_state *crtc_state;
> + struct drm_plane_state *primary_state;
> + struct drm_crtc *crtc = set->crtc;
> + int hdisplay, vdisplay;
> + int ret;
> +
> + crtc_state = drm_atomic_get_crtc_state(state, crtc);
> + if (IS_ERR(crtc_state))
> + return PTR_ERR(crtc_state);
> +
> + primary_state = drm_atomic_get_plane_state(state, crtc->primary);
> + if (IS_ERR(primary_state))
> + return PTR_ERR(primary_state);
> +
> + if (!set->mode) {
> + WARN_ON(set->fb);
> + WARN_ON(set->num_connectors);
> +
> + ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
> + if (ret != 0)
> + return ret;
> +
> + crtc_state->active = false;
> +
> + ret = drm_atomic_set_crtc_for_plane(primary_state, NULL);
> + if (ret != 0)
> + return ret;
> +
> + drm_atomic_set_fb_for_plane(primary_state, NULL);
> +
> + goto commit;
> + }
> +
> + WARN_ON(!set->fb);
> + WARN_ON(!set->num_connectors);
> +
> + ret = drm_atomic_set_mode_for_crtc(crtc_state, set->mode);
> + if (ret != 0)
> + return ret;
> +
> + crtc_state->active = true;
> +
> + ret = drm_atomic_set_crtc_for_plane(primary_state, crtc);
> + if (ret != 0)
> + return ret;
> +
> + drm_mode_get_hv_timing(set->mode, &hdisplay, &vdisplay);
> +
> + drm_atomic_set_fb_for_plane(primary_state, set->fb);
> + primary_state->crtc_x = 0;
> + primary_state->crtc_y = 0;
> + primary_state->crtc_w = hdisplay;
> + primary_state->crtc_h = vdisplay;
> + primary_state->src_x = set->x << 16;
> + primary_state->src_y = set->y << 16;
> + if (drm_rotation_90_or_270(primary_state->rotation)) {
> + primary_state->src_w = vdisplay << 16;
> + primary_state->src_h = hdisplay << 16;
> + } else {
> + primary_state->src_w = hdisplay << 16;
> + primary_state->src_h = vdisplay << 16;
> + }
> +
> +commit:
> + ret = update_output_state(state, set);
> + if (ret)
> + return ret;
> +
> + return 0;
> +}
> +EXPORT_SYMBOL(drm_atomic_set_config);
> +
> /**
> * DOC: explicit fencing properties
> *
> diff --git a/drivers/gpu/drm/drm_atomic_helper.c
> b/drivers/gpu/drm/drm_atomic_helper.c
> index ee03c1ed2521..4f20eb58dd4f 100644
> --- a/drivers/gpu/drm/drm_atomic_helper.c
> +++ b/drivers/gpu/drm/drm_atomic_helper.c
> @@ -2673,7 +2673,7 @@ int drm_atomic_helper_disable_plane(struct drm_plane
> *plane,
> if (plane_state->crtc && plane_state->crtc->cursor == plane)
> plane_state->state->legacy_cursor_update = true;
>
> - ret = __drm_atomic_helper_disable_plane(plane, plane_state);
> + ret = drm_atomic_disable_plane(plane, plane_state);
> if (ret != 0)
> goto fail;
>
> @@ -2684,95 +2684,6 @@ int drm_atomic_helper_disable_plane(struct drm_plane
> *plane,
> }
> EXPORT_SYMBOL(drm_atomic_helper_disable_plane);
>
> -/* just used from fb-helper and atomic-helper: */
> -int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
> - struct drm_plane_state *plane_state)
> -{
> - int ret;
> -
> - ret = drm_atomic_set_crtc_for_plane(plane_state, NULL);
> - if (ret != 0)
> - return ret;
> -
> - drm_atomic_set_fb_for_plane(plane_state, NULL);
> - plane_state->crtc_x = 0;
> - plane_state->crtc_y = 0;
> - plane_state->crtc_w = 0;
> - plane_state->crtc_h = 0;
> - plane_state->src_x = 0;
> - plane_state->src_y = 0;
> - plane_state->src_w = 0;
> - plane_state->src_h = 0;
> -
> - return 0;
> -}
> -
> -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 *new_crtc_state;
> - struct drm_connector *connector;
> - struct drm_connector_state *new_conn_state;
> - int ret, i;
> -
> - ret = drm_modeset_lock(&dev->mode_config.connection_mutex,
> - state->acquire_ctx);
> - if (ret)
> - return ret;
> -
> - /* First disable all connectors on the target crtc. */
> - ret = drm_atomic_add_affected_connectors(state, set->crtc);
> - if (ret)
> - return ret;
> -
> - for_each_new_connector_in_state(state, connector, new_conn_state, i) {
> - if (new_conn_state->crtc == set->crtc) {
> - ret = drm_atomic_set_crtc_for_connector(new_conn_state,
> - NULL);
> - if (ret)
> - return ret;
> -
> - /* Make sure legacy setCrtc always re-trains */
> - new_conn_state->link_status = DRM_LINK_STATUS_GOOD;
> - }
> - }
> -
> - /* Then set all connectors from set->connectors on the target crtc */
> - for (i = 0; i < set->num_connectors; i++) {
> - new_conn_state = drm_atomic_get_connector_state(state,
> - set->connectors[i]);
> - if (IS_ERR(new_conn_state))
> - return PTR_ERR(new_conn_state);
> -
> - ret = drm_atomic_set_crtc_for_connector(new_conn_state,
> - set->crtc);
> - if (ret)
> - return ret;
> - }
> -
> - for_each_new_crtc_in_state(state, crtc, new_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
> - * inconsistencies here. */
> - if (crtc == set->crtc)
> - continue;
> -
> - if (!new_crtc_state->connector_mask) {
> - ret = drm_atomic_set_mode_prop_for_crtc(new_crtc_state,
> - NULL);
> - if (ret < 0)
> - return ret;
> -
> - new_crtc_state->active = false;
> - }
> - }
> -
> - return 0;
> -}
> -
> /**
> * drm_atomic_helper_set_config - set a new config from userspace
> * @set: mode set configuration
> @@ -2801,7 +2712,7 @@ int drm_atomic_helper_set_config(struct drm_mode_set
> *set,
> return -ENOMEM;
>
> state->acquire_ctx = ctx;
> - ret = __drm_atomic_helper_set_config(set, state);
> + ret = drm_atomic_set_config(set, state);
> if (ret != 0)
> goto fail;
>
> @@ -2817,81 +2728,6 @@ int drm_atomic_helper_set_config(struct drm_mode_set
> *set,
> }
> EXPORT_SYMBOL(drm_atomic_helper_set_config);
>
> -/* just used from fb-helper and atomic-helper: */
> -int __drm_atomic_helper_set_config(struct drm_mode_set *set,
> - struct drm_atomic_state *state)
> -{
> - struct drm_crtc_state *crtc_state;
> - struct drm_plane_state *primary_state;
> - struct drm_crtc *crtc = set->crtc;
> - int hdisplay, vdisplay;
> - int ret;
> -
> - crtc_state = drm_atomic_get_crtc_state(state, crtc);
> - if (IS_ERR(crtc_state))
> - return PTR_ERR(crtc_state);
> -
> - primary_state = drm_atomic_get_plane_state(state, crtc->primary);
> - if (IS_ERR(primary_state))
> - return PTR_ERR(primary_state);
> -
> - if (!set->mode) {
> - WARN_ON(set->fb);
> - WARN_ON(set->num_connectors);
> -
> - ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
> - if (ret != 0)
> - return ret;
> -
> - crtc_state->active = false;
> -
> - ret = drm_atomic_set_crtc_for_plane(primary_state, NULL);
> - if (ret != 0)
> - return ret;
> -
> - drm_atomic_set_fb_for_plane(primary_state, NULL);
> -
> - goto commit;
> - }
> -
> - WARN_ON(!set->fb);
> - WARN_ON(!set->num_connectors);
> -
> - ret = drm_atomic_set_mode_for_crtc(crtc_state, set->mode);
> - if (ret != 0)
> - return ret;
> -
> - crtc_state->active = true;
> -
> - ret = drm_atomic_set_crtc_for_plane(primary_state, crtc);
> - if (ret != 0)
> - return ret;
> -
> - drm_mode_get_hv_timing(set->mode, &hdisplay, &vdisplay);
> -
> - drm_atomic_set_fb_for_plane(primary_state, set->fb);
> - primary_state->crtc_x = 0;
> - primary_state->crtc_y = 0;
> - primary_state->crtc_w = hdisplay;
> - primary_state->crtc_h = vdisplay;
> - primary_state->src_x = set->x << 16;
> - primary_state->src_y = set->y << 16;
> - if (drm_rotation_90_or_270(primary_state->rotation)) {
> - primary_state->src_w = vdisplay << 16;
> - primary_state->src_h = hdisplay << 16;
> - } else {
> - primary_state->src_w = hdisplay << 16;
> - primary_state->src_h = vdisplay << 16;
> - }
> -
> -commit:
> - ret = update_output_state(state, set);
> - if (ret)
> - return ret;
> -
> - return 0;
> -}
> -
> static int __drm_atomic_helper_disable_all(struct drm_device *dev,
> struct drm_modeset_acquire_ctx *ctx,
> bool clean_old_fbs)
> diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
> index d0936671a9a6..2eef24db21f8 100644
> --- a/drivers/gpu/drm/drm_fb_helper.c
> +++ b/drivers/gpu/drm/drm_fb_helper.c
> @@ -358,7 +358,7 @@ static int restore_fbdev_mode_atomic(struct drm_fb_helper
> *fb_helper, bool activ
> if (plane->type == DRM_PLANE_TYPE_PRIMARY)
> continue;
>
> - ret = __drm_atomic_helper_disable_plane(plane, plane_state);
> + ret = drm_atomic_disable_plane(plane, plane_state);
> if (ret != 0)
> goto out_state;
> }
> @@ -374,13 +374,13 @@ static int restore_fbdev_mode_atomic(struct
> drm_fb_helper *fb_helper, bool activ
> plane_state->rotation = rotation;
> }
>
> - ret = __drm_atomic_helper_set_config(mode_set, state);
> + ret = drm_atomic_set_config(mode_set, state);
> if (ret != 0)
> goto out_state;
>
> /*
> - * __drm_atomic_helper_set_config() sets active when a
> - * mode is set, unconditionally clear it if we force DPMS off
> + * drm_atomic_set_config() sets active when a mode is set,
> + * unconditionally clear it if we force DPMS off
> */
> if (!active) {
> struct drm_crtc *crtc = mode_set->crtc;
> diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
> index a57a8aa90ffb..0b0827ff2169 100644
> --- a/include/drm/drm_atomic.h
> +++ b/include/drm/drm_atomic.h
> @@ -604,6 +604,11 @@ drm_atomic_add_affected_planes(struct drm_atomic_state
> *state,
> void
> drm_atomic_clean_old_fb(struct drm_device *dev, unsigned plane_mask, int
> ret);
>
> +int drm_atomic_disable_plane(struct drm_plane *plane,
> + struct drm_plane_state *plane_state);
> +int drm_atomic_set_config(struct drm_mode_set *set,
> + struct drm_atomic_state *state);
> +
> 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_nonblocking_commit(struct drm_atomic_state
> *state);
> diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h
> index 26aaba58d6ce..8d88a8b2ad52 100644
> --- a/include/drm/drm_atomic_helper.h
> +++ b/include/drm/drm_atomic_helper.h
> @@ -114,12 +114,8 @@ int drm_atomic_helper_update_plane(struct drm_plane
> *plane,
> struct drm_modeset_acquire_ctx *ctx);
> int drm_atomic_helper_disable_plane(struct drm_plane *plane,
> struct drm_modeset_acquire_ctx *ctx);
> -int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
> - struct drm_plane_state *plane_state);
> int drm_atomic_helper_set_config(struct drm_mode_set *set,
> struct drm_modeset_acquire_ctx *ctx);
> -int __drm_atomic_helper_set_config(struct drm_mode_set *set,
> - struct drm_atomic_state *state);
>
> int drm_atomic_helper_disable_all(struct drm_device *dev,
> struct drm_modeset_acquire_ctx *ctx);
> --
> 2.15.1
>
> _______________________________________________
> dri-devel mailing list
> dri-de...@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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