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drm/atomic-helper: Remove the backoff hack from set_config 

Another one bites the dust.

Again let's not forget to remove the temporary hidden acquire_ctx
assignment, now that we pass this all around explicitly it can go
away again.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170322215058.8671-20-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter 2017-03-22 22:50:58 +01:00
parent a4eff9aa6d
commit 38b6441e4e
2 changed files with 2 additions and 20 deletions
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21
drivers/gpu/drm/drm_atomic_helper.c
View File

@ -2290,32 +2290,15 @@ int drm_atomic_helper_set_config(struct drm_mode_set *set,
return -ENOMEM; return -ENOMEM;
state->legacy_set_config = true; state->legacy_set_config = true;
state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc); state->acquire_ctx = ctx;
retry:
ret = __drm_atomic_helper_set_config(set, state); ret = __drm_atomic_helper_set_config(set, state);
if (ret != 0) if (ret != 0)
goto fail; return ret;
ret = drm_atomic_commit(state); ret = drm_atomic_commit(state);
fail:
if (ret == -EDEADLK)
goto backoff;
drm_atomic_state_put(state); drm_atomic_state_put(state);
return ret; return ret;
backoff:
drm_atomic_state_clear(state);
drm_atomic_legacy_backoff(state);
/*
* Someone might have exchanged the framebuffer while we dropped locks
* in the backoff code. We need to fix up the fb refcount tracking the
* core does for us.
*/
crtc->primary->old_fb = crtc->primary->fb;
goto retry;
} }
EXPORT_SYMBOL(drm_atomic_helper_set_config); EXPORT_SYMBOL(drm_atomic_helper_set_config);

1
drivers/gpu/drm/drm_crtc.c
View File

@ -581,7 +581,6 @@ retry:
ret = drm_modeset_lock_all_ctx(crtc->dev, &ctx); ret = drm_modeset_lock_all_ctx(crtc->dev, &ctx);
if (ret) if (ret)
goto out; goto out;
dev->mode_config.acquire_ctx = &ctx;
if (crtc_req->mode_valid) { if (crtc_req->mode_valid) {
/* If we have a mode we need a framebuffer. */ /* If we have a mode we need a framebuffer. */
/* If we pass -1, set the mode with the currently bound fb */ /* If we pass -1, set the mode with the currently bound fb */