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drm: extract legacy framebuffer remove

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I got confused every time I audited what that lock_all is doing in
there until realizing it's for legacy kms only. Make that a notch more
obvious by having 2 entirely different paths.

While at it also move the atomic version of this into
drm_framebuffer.c, there's no reason it needs to be in drm_atomic.c.
That way it becomes a simple static function.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170403083304.9083-15-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter
2017-04-03 10:33:03 +02:00
parent 3a09f737ee
commit 941b8caaa8
3 changed files with 115 additions and 111 deletions
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88
drivers/gpu/drm/drm_atomic.c
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@@ -2081,94 +2081,6 @@ static void complete_crtc_signaling(struct drm_device *dev,
kfree(fence_state);
}
int drm_atomic_remove_fb(struct drm_framebuffer *fb)
{
struct drm_modeset_acquire_ctx ctx;
struct drm_device *dev = fb->dev;
struct drm_atomic_state *state;
struct drm_plane *plane;
struct drm_connector *conn;
struct drm_connector_state *conn_state;
int i, ret = 0;
unsigned plane_mask;
state = drm_atomic_state_alloc(dev);
if (!state)
return -ENOMEM;
drm_modeset_acquire_init(&ctx, 0);
state->acquire_ctx = &ctx;
retry:
plane_mask = 0;
ret = drm_modeset_lock_all_ctx(dev, &ctx);
if (ret)
goto unlock;
drm_for_each_plane(plane, dev) {
struct drm_plane_state *plane_state;
if (plane->state->fb != fb)
continue;
plane_state = drm_atomic_get_plane_state(state, plane);
if (IS_ERR(plane_state)) {
ret = PTR_ERR(plane_state);
goto unlock;
}
if (plane_state->crtc->primary == plane) {
struct drm_crtc_state *crtc_state;
crtc_state = drm_atomic_get_existing_crtc_state(state, plane_state->crtc);
ret = drm_atomic_add_affected_connectors(state, plane_state->crtc);
if (ret)
goto unlock;
crtc_state->active = false;
ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
if (ret)
goto unlock;
}
drm_atomic_set_fb_for_plane(plane_state, NULL);
ret = drm_atomic_set_crtc_for_plane(plane_state, NULL);
if (ret)
goto unlock;
plane_mask |= BIT(drm_plane_index(plane));
plane->old_fb = plane->fb;
}
for_each_connector_in_state(state, conn, conn_state, i) {
ret = drm_atomic_set_crtc_for_connector(conn_state, NULL);
if (ret)
goto unlock;
}
if (plane_mask)
ret = drm_atomic_commit(state);
unlock:
if (plane_mask)
drm_atomic_clean_old_fb(dev, plane_mask, ret);
if (ret == -EDEADLK) {
drm_modeset_backoff(&ctx);
goto retry;
}
drm_atomic_state_put(state);
drm_modeset_drop_locks(&ctx);
drm_modeset_acquire_fini(&ctx);
return ret;
}
int drm_mode_atomic_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv)
{