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https://github.com/edk2-porting/linux-next.git
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drm/fb-helper: Move out commit code
Move the modeset commit code to drm_client_modeset. No changes except exporting API. v7: Export drm_client_panel_rotation() (Gerd Hoffmann) v2: Move to drm_client_modeset.c instead of drm_client.c Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190531140117.37751-5-noralf@tronnes.org
This commit is contained in:
Noralf Trønnes
parent
eade2a17dd
commit
aec3925f09
@ -11,9 +11,14 @@
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#include <linux/mutex.h>
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#include <linux/slab.h>
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#include <drm/drm_atomic.h>
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#include <drm/drm_client.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_device.h>
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#include <drm/drm_drv.h>
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#include "drm_crtc_internal.h"
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#include "drm_internal.h"
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int drm_client_modeset_create(struct drm_client_dev *client)
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{
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@ -102,3 +107,286 @@ struct drm_mode_set *drm_client_find_modeset(struct drm_client_dev *client, stru
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}
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/* TODO: Remove export when modeset code has been moved over */
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EXPORT_SYMBOL(drm_client_find_modeset);
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/**
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* drm_client_panel_rotation() - Check panel orientation
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* @modeset: DRM modeset
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* @rotation: Returned rotation value
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*
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* This function checks if the primary plane in @modeset can hw rotate to match
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* the panel orientation on its connector.
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*
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* Note: Currently only 0 and 180 degrees are supported.
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*
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* Return:
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* True if the plane can do the rotation, false otherwise.
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*/
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bool drm_client_panel_rotation(struct drm_mode_set *modeset, unsigned int *rotation)
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{
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struct drm_connector *connector = modeset->connectors[0];
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struct drm_plane *plane = modeset->crtc->primary;
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u64 valid_mask = 0;
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unsigned int i;
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if (!modeset->num_connectors)
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return false;
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switch (connector->display_info.panel_orientation) {
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case DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP:
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*rotation = DRM_MODE_ROTATE_180;
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break;
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case DRM_MODE_PANEL_ORIENTATION_LEFT_UP:
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*rotation = DRM_MODE_ROTATE_90;
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break;
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case DRM_MODE_PANEL_ORIENTATION_RIGHT_UP:
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*rotation = DRM_MODE_ROTATE_270;
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break;
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default:
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*rotation = DRM_MODE_ROTATE_0;
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}
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/*
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* TODO: support 90 / 270 degree hardware rotation,
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* depending on the hardware this may require the framebuffer
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* to be in a specific tiling format.
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*/
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if (*rotation != DRM_MODE_ROTATE_180 || !plane->rotation_property)
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return false;
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for (i = 0; i < plane->rotation_property->num_values; i++)
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valid_mask |= (1ULL << plane->rotation_property->values[i]);
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if (!(*rotation & valid_mask))
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return false;
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return true;
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}
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EXPORT_SYMBOL(drm_client_panel_rotation);
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static int drm_client_modeset_commit_atomic(struct drm_client_dev *client, bool active)
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{
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struct drm_device *dev = client->dev;
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struct drm_plane_state *plane_state;
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struct drm_plane *plane;
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struct drm_atomic_state *state;
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struct drm_modeset_acquire_ctx ctx;
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struct drm_mode_set *mode_set;
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int ret;
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drm_modeset_acquire_init(&ctx, 0);
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state = drm_atomic_state_alloc(dev);
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if (!state) {
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ret = -ENOMEM;
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goto out_ctx;
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}
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state->acquire_ctx = &ctx;
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retry:
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drm_for_each_plane(plane, dev) {
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plane_state = drm_atomic_get_plane_state(state, plane);
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if (IS_ERR(plane_state)) {
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ret = PTR_ERR(plane_state);
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goto out_state;
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}
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plane_state->rotation = DRM_MODE_ROTATE_0;
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/* disable non-primary: */
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if (plane->type == DRM_PLANE_TYPE_PRIMARY)
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continue;
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ret = __drm_atomic_helper_disable_plane(plane, plane_state);
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if (ret != 0)
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goto out_state;
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}
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drm_client_for_each_modeset(mode_set, client) {
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struct drm_plane *primary = mode_set->crtc->primary;
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unsigned int rotation;
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if (drm_client_panel_rotation(mode_set, &rotation)) {
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/* Cannot fail as we've already gotten the plane state above */
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plane_state = drm_atomic_get_new_plane_state(state, primary);
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plane_state->rotation = rotation;
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}
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ret = __drm_atomic_helper_set_config(mode_set, state);
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if (ret != 0)
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goto out_state;
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/*
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* __drm_atomic_helper_set_config() sets active when a
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* mode is set, unconditionally clear it if we force DPMS off
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*/
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if (!active) {
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struct drm_crtc *crtc = mode_set->crtc;
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struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
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crtc_state->active = false;
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}
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}
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ret = drm_atomic_commit(state);
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out_state:
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if (ret == -EDEADLK)
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goto backoff;
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drm_atomic_state_put(state);
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out_ctx:
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drm_modeset_drop_locks(&ctx);
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drm_modeset_acquire_fini(&ctx);
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return ret;
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backoff:
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drm_atomic_state_clear(state);
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drm_modeset_backoff(&ctx);
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goto retry;
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}
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static int drm_client_modeset_commit_legacy(struct drm_client_dev *client)
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{
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struct drm_device *dev = client->dev;
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struct drm_mode_set *mode_set;
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struct drm_plane *plane;
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int ret = 0;
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drm_modeset_lock_all(dev);
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drm_for_each_plane(plane, dev) {
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if (plane->type != DRM_PLANE_TYPE_PRIMARY)
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drm_plane_force_disable(plane);
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if (plane->rotation_property)
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drm_mode_plane_set_obj_prop(plane,
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plane->rotation_property,
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DRM_MODE_ROTATE_0);
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}
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drm_client_for_each_modeset(mode_set, client) {
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struct drm_crtc *crtc = mode_set->crtc;
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if (crtc->funcs->cursor_set2) {
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ret = crtc->funcs->cursor_set2(crtc, NULL, 0, 0, 0, 0, 0);
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if (ret)
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goto out;
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} else if (crtc->funcs->cursor_set) {
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ret = crtc->funcs->cursor_set(crtc, NULL, 0, 0, 0);
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if (ret)
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goto out;
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}
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ret = drm_mode_set_config_internal(mode_set);
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if (ret)
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goto out;
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}
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out:
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drm_modeset_unlock_all(dev);
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return ret;
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}
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/**
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* drm_client_modeset_commit_force() - Force commit CRTC configuration
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* @client: DRM client
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*
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* Commit modeset configuration to crtcs without checking if there is a DRM master.
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*
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* Returns:
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* Zero on success or negative error code on failure.
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*/
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int drm_client_modeset_commit_force(struct drm_client_dev *client)
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{
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struct drm_device *dev = client->dev;
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int ret;
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mutex_lock(&client->modeset_mutex);
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if (drm_drv_uses_atomic_modeset(dev))
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ret = drm_client_modeset_commit_atomic(client, true);
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else
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ret = drm_client_modeset_commit_legacy(client);
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mutex_unlock(&client->modeset_mutex);
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return ret;
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}
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EXPORT_SYMBOL(drm_client_modeset_commit_force);
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/**
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* drm_client_modeset_commit() - Commit CRTC configuration
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* @client: DRM client
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*
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* Commit modeset configuration to crtcs.
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*
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* Returns:
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* Zero on success or negative error code on failure.
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*/
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int drm_client_modeset_commit(struct drm_client_dev *client)
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{
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struct drm_device *dev = client->dev;
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int ret;
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if (!drm_master_internal_acquire(dev))
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return -EBUSY;
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ret = drm_client_modeset_commit_force(client);
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drm_master_internal_release(dev);
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return ret;
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}
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EXPORT_SYMBOL(drm_client_modeset_commit);
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static void drm_client_modeset_dpms_legacy(struct drm_client_dev *client, int dpms_mode)
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{
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struct drm_device *dev = client->dev;
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struct drm_connector *connector;
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struct drm_mode_set *modeset;
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int j;
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drm_modeset_lock_all(dev);
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drm_client_for_each_modeset(modeset, client) {
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if (!modeset->crtc->enabled)
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continue;
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for (j = 0; j < modeset->num_connectors; j++) {
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connector = modeset->connectors[j];
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connector->funcs->dpms(connector, dpms_mode);
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drm_object_property_set_value(&connector->base,
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dev->mode_config.dpms_property, dpms_mode);
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}
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}
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drm_modeset_unlock_all(dev);
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}
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/**
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* drm_client_modeset_dpms() - Set DPMS mode
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* @client: DRM client
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* @mode: DPMS mode
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*
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* Note: For atomic drivers @mode is reduced to on/off.
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*
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* Returns:
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* Zero on success or negative error code on failure.
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*/
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int drm_client_modeset_dpms(struct drm_client_dev *client, int mode)
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{
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struct drm_device *dev = client->dev;
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int ret = 0;
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if (!drm_master_internal_acquire(dev))
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return -EBUSY;
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mutex_lock(&client->modeset_mutex);
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if (drm_drv_uses_atomic_modeset(dev))
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ret = drm_client_modeset_commit_atomic(client, mode == DRM_MODE_DPMS_ON);
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else
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drm_client_modeset_dpms_legacy(client, mode);
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mutex_unlock(&client->modeset_mutex);
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drm_master_internal_release(dev);
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return ret;
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}
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EXPORT_SYMBOL(drm_client_modeset_dpms);
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@ -38,7 +38,6 @@
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#include <linux/vmalloc.h>
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#include <drm/drm_atomic.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_drv.h>
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@ -47,8 +46,6 @@
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#include <drm/drm_print.h>
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#include <drm/drm_vblank.h>
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#include "drm_crtc_helper_internal.h"
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#include "drm_crtc_internal.h"
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#include "drm_internal.h"
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static bool drm_fbdev_emulation = true;
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@ -393,233 +390,6 @@ int drm_fb_helper_debug_leave(struct fb_info *info)
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}
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EXPORT_SYMBOL(drm_fb_helper_debug_leave);
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/**
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* drm_client_panel_rotation() - Check panel orientation
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* @modeset: DRM modeset
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* @rotation: Returned rotation value
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*
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* This function checks if the primary plane in @modeset can hw rotate to match
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* the panel orientation on its connector.
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*
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* Note: Currently only 0 and 180 degrees are supported.
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*
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* Return:
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* True if the plane can do the rotation, false otherwise.
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*/
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bool drm_client_panel_rotation(struct drm_mode_set *modeset, unsigned int *rotation)
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{
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struct drm_connector *connector = modeset->connectors[0];
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struct drm_plane *plane = modeset->crtc->primary;
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u64 valid_mask = 0;
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unsigned int i;
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if (!modeset->num_connectors)
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return false;
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switch (connector->display_info.panel_orientation) {
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case DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP:
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*rotation = DRM_MODE_ROTATE_180;
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break;
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case DRM_MODE_PANEL_ORIENTATION_LEFT_UP:
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*rotation = DRM_MODE_ROTATE_90;
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break;
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case DRM_MODE_PANEL_ORIENTATION_RIGHT_UP:
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*rotation = DRM_MODE_ROTATE_270;
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break;
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default:
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*rotation = DRM_MODE_ROTATE_0;
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}
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/*
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* TODO: support 90 / 270 degree hardware rotation,
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* depending on the hardware this may require the framebuffer
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* to be in a specific tiling format.
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*/
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if (*rotation != DRM_MODE_ROTATE_180 || !plane->rotation_property)
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return false;
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for (i = 0; i < plane->rotation_property->num_values; i++)
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valid_mask |= (1ULL << plane->rotation_property->values[i]);
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if (!(*rotation & valid_mask))
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return false;
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return true;
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}
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static int drm_client_modeset_commit_atomic(struct drm_client_dev *client, bool active)
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{
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struct drm_device *dev = client->dev;
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struct drm_plane_state *plane_state;
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struct drm_plane *plane;
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struct drm_atomic_state *state;
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struct drm_modeset_acquire_ctx ctx;
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struct drm_mode_set *mode_set;
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int ret;
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drm_modeset_acquire_init(&ctx, 0);
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state = drm_atomic_state_alloc(dev);
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if (!state) {
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ret = -ENOMEM;
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goto out_ctx;
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}
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state->acquire_ctx = &ctx;
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retry:
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drm_for_each_plane(plane, dev) {
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plane_state = drm_atomic_get_plane_state(state, plane);
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if (IS_ERR(plane_state)) {
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ret = PTR_ERR(plane_state);
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goto out_state;
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}
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plane_state->rotation = DRM_MODE_ROTATE_0;
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/* disable non-primary: */
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if (plane->type == DRM_PLANE_TYPE_PRIMARY)
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continue;
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ret = __drm_atomic_helper_disable_plane(plane, plane_state);
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if (ret != 0)
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goto out_state;
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}
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drm_client_for_each_modeset(mode_set, client) {
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struct drm_plane *primary = mode_set->crtc->primary;
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unsigned int rotation;
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if (drm_client_panel_rotation(mode_set, &rotation)) {
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/* Cannot fail as we've already gotten the plane state above */
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plane_state = drm_atomic_get_new_plane_state(state, primary);
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plane_state->rotation = rotation;
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}
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ret = __drm_atomic_helper_set_config(mode_set, state);
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if (ret != 0)
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goto out_state;
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/*
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* __drm_atomic_helper_set_config() sets active when a
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* mode is set, unconditionally clear it if we force DPMS off
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*/
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if (!active) {
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struct drm_crtc *crtc = mode_set->crtc;
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struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
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crtc_state->active = false;
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}
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}
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ret = drm_atomic_commit(state);
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out_state:
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if (ret == -EDEADLK)
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goto backoff;
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drm_atomic_state_put(state);
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out_ctx:
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drm_modeset_drop_locks(&ctx);
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drm_modeset_acquire_fini(&ctx);
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return ret;
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backoff:
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drm_atomic_state_clear(state);
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drm_modeset_backoff(&ctx);
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goto retry;
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}
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static int drm_client_modeset_commit_legacy(struct drm_client_dev *client)
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{
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struct drm_device *dev = client->dev;
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struct drm_mode_set *mode_set;
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struct drm_plane *plane;
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int ret = 0;
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drm_modeset_lock_all(dev);
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drm_for_each_plane(plane, dev) {
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if (plane->type != DRM_PLANE_TYPE_PRIMARY)
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drm_plane_force_disable(plane);
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if (plane->rotation_property)
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drm_mode_plane_set_obj_prop(plane,
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plane->rotation_property,
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DRM_MODE_ROTATE_0);
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}
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drm_client_for_each_modeset(mode_set, client) {
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struct drm_crtc *crtc = mode_set->crtc;
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if (crtc->funcs->cursor_set2) {
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ret = crtc->funcs->cursor_set2(crtc, NULL, 0, 0, 0, 0, 0);
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if (ret)
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goto out;
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} else if (crtc->funcs->cursor_set) {
|
||||
ret = crtc->funcs->cursor_set(crtc, NULL, 0, 0, 0);
|
||||
if (ret)
|
||||
goto out;
|
||||
}
|
||||
|
||||
ret = drm_mode_set_config_internal(mode_set);
|
||||
if (ret)
|
||||
goto out;
|
||||
}
|
||||
out:
|
||||
drm_modeset_unlock_all(dev);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* drm_client_modeset_commit_force() - Force commit CRTC configuration
|
||||
* @client: DRM client
|
||||
*
|
||||
* Commit modeset configuration to crtcs without checking if there is a DRM master.
|
||||
*
|
||||
* Returns:
|
||||
* Zero on success or negative error code on failure.
|
||||
*/
|
||||
int drm_client_modeset_commit_force(struct drm_client_dev *client)
|
||||
{
|
||||
struct drm_device *dev = client->dev;
|
||||
int ret;
|
||||
|
||||
mutex_lock(&client->modeset_mutex);
|
||||
if (drm_drv_uses_atomic_modeset(dev))
|
||||
ret = drm_client_modeset_commit_atomic(client, true);
|
||||
else
|
||||
ret = drm_client_modeset_commit_legacy(client);
|
||||
mutex_unlock(&client->modeset_mutex);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* drm_client_modeset_commit() - Commit CRTC configuration
|
||||
* @client: DRM client
|
||||
*
|
||||
* Commit modeset configuration to crtcs.
|
||||
*
|
||||
* Returns:
|
||||
* Zero on success or negative error code on failure.
|
||||
*/
|
||||
int drm_client_modeset_commit(struct drm_client_dev *client)
|
||||
{
|
||||
struct drm_device *dev = client->dev;
|
||||
int ret;
|
||||
|
||||
if (!drm_master_internal_acquire(dev))
|
||||
return -EBUSY;
|
||||
|
||||
ret = drm_client_modeset_commit_force(client);
|
||||
|
||||
drm_master_internal_release(dev);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* drm_fb_helper_restore_fbdev_mode_unlocked - restore fbdev configuration
|
||||
* @fb_helper: driver-allocated fbdev helper, can be NULL
|
||||
@ -719,58 +489,6 @@ static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = {
|
||||
static struct sysrq_key_op sysrq_drm_fb_helper_restore_op = { };
|
||||
#endif
|
||||
|
||||
static void drm_client_modeset_dpms_legacy(struct drm_client_dev *client, int dpms_mode)
|
||||
{
|
||||
struct drm_device *dev = client->dev;
|
||||
struct drm_connector *connector;
|
||||
struct drm_mode_set *modeset;
|
||||
int j;
|
||||
|
||||
drm_modeset_lock_all(dev);
|
||||
drm_client_for_each_modeset(modeset, client) {
|
||||
if (!modeset->crtc->enabled)
|
||||
continue;
|
||||
|
||||
for (j = 0; j < modeset->num_connectors; j++) {
|
||||
connector = modeset->connectors[j];
|
||||
connector->funcs->dpms(connector, dpms_mode);
|
||||
drm_object_property_set_value(&connector->base,
|
||||
dev->mode_config.dpms_property, dpms_mode);
|
||||
}
|
||||
}
|
||||
drm_modeset_unlock_all(dev);
|
||||
}
|
||||
|
||||
/**
|
||||
* drm_client_modeset_dpms() - Set DPMS mode
|
||||
* @client: DRM client
|
||||
* @mode: DPMS mode
|
||||
*
|
||||
* Note: For atomic drivers @mode is reduced to on/off.
|
||||
*
|
||||
* Returns:
|
||||
* Zero on success or negative error code on failure.
|
||||
*/
|
||||
int drm_client_modeset_dpms(struct drm_client_dev *client, int mode)
|
||||
{
|
||||
struct drm_device *dev = client->dev;
|
||||
int ret = 0;
|
||||
|
||||
if (!drm_master_internal_acquire(dev))
|
||||
return -EBUSY;
|
||||
|
||||
mutex_lock(&client->modeset_mutex);
|
||||
if (drm_drv_uses_atomic_modeset(dev))
|
||||
ret = drm_client_modeset_commit_atomic(client, mode == DRM_MODE_DPMS_ON);
|
||||
else
|
||||
drm_client_modeset_dpms_legacy(client, mode);
|
||||
mutex_unlock(&client->modeset_mutex);
|
||||
|
||||
drm_master_internal_release(dev);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void drm_fb_helper_dpms(struct fb_info *info, int dpms_mode)
|
||||
{
|
||||
struct drm_fb_helper *fb_helper = info->par;
|
||||
|
||||
@ -155,6 +155,10 @@ int drm_client_modeset_create(struct drm_client_dev *client);
|
||||
void drm_client_modeset_free(struct drm_client_dev *client);
|
||||
void drm_client_modeset_release(struct drm_client_dev *client);
|
||||
struct drm_mode_set *drm_client_find_modeset(struct drm_client_dev *client, struct drm_crtc *crtc);
|
||||
bool drm_client_panel_rotation(struct drm_mode_set *modeset, unsigned int *rotation);
|
||||
int drm_client_modeset_commit_force(struct drm_client_dev *client);
|
||||
int drm_client_modeset_commit(struct drm_client_dev *client);
|
||||
int drm_client_modeset_dpms(struct drm_client_dev *client, int mode);
|
||||
|
||||
/**
|
||||
* drm_client_for_each_modeset() - Iterate over client modesets
|
||||
|
||||
Loading…
Reference in New Issue
Block a user