Ejemplos de intel_atomic_get_crtc_state en C++ (Cpp)

Ejemplo n.º 1

Archivo: intel_pipe_crc.c Proyecto: AshishNamdev/linux

static void hsw_trans_edp_pipe_A_crc_wa(struct drm_i915_private *dev_priv,
					bool enable)
{
	struct drm_device *dev = &dev_priv->drm;
	struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, PIPE_A);
	struct intel_crtc_state *pipe_config;
	struct drm_atomic_state *state;
	int ret = 0;

	drm_modeset_lock_all(dev);
	state = drm_atomic_state_alloc(dev);
	if (!state) {
		ret = -ENOMEM;
		goto unlock;
	}

	state->acquire_ctx = drm_modeset_legacy_acquire_ctx(&crtc->base);
	pipe_config = intel_atomic_get_crtc_state(state, crtc);
	if (IS_ERR(pipe_config)) {
		ret = PTR_ERR(pipe_config);
		goto put_state;
	}

	pipe_config->pch_pfit.force_thru = enable;
	if (pipe_config->cpu_transcoder == TRANSCODER_EDP &&
	    pipe_config->pch_pfit.enabled != enable)
		pipe_config->base.connectors_changed = true;

	ret = drm_atomic_commit(state);

put_state:
	drm_atomic_state_put(state);
unlock:
	WARN(ret, "Toggling workaround to %i returns %i\n", enable, ret);
	drm_modeset_unlock_all(dev);
}

Ejemplo n.º 2

Archivo: intel_pipe_crc.c Proyecto: MaxKellermann/linux

static void hsw_pipe_A_crc_wa(struct drm_i915_private *dev_priv,
			      bool enable)
{
	struct drm_device *dev = &dev_priv->drm;
	struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, PIPE_A);
	struct intel_crtc_state *pipe_config;
	struct drm_atomic_state *state;
	struct drm_modeset_acquire_ctx ctx;
	int ret = 0;

	drm_modeset_acquire_init(&ctx, 0);

	state = drm_atomic_state_alloc(dev);
	if (!state) {
		ret = -ENOMEM;
		goto unlock;
	}

	state->acquire_ctx = &ctx;

retry:
	pipe_config = intel_atomic_get_crtc_state(state, crtc);
	if (IS_ERR(pipe_config)) {
		ret = PTR_ERR(pipe_config);
		goto put_state;
	}

	if (HAS_IPS(dev_priv)) {
		/*
		 * When IPS gets enabled, the pipe CRC changes. Since IPS gets
		 * enabled and disabled dynamically based on package C states,
		 * user space can't make reliable use of the CRCs, so let's just
		 * completely disable it.
		 */
		pipe_config->ips_force_disable = enable;
		if (pipe_config->ips_enabled == enable)
			pipe_config->base.connectors_changed = true;
	}

	if (IS_HASWELL(dev_priv)) {
		pipe_config->pch_pfit.force_thru = enable;
		if (pipe_config->cpu_transcoder == TRANSCODER_EDP &&
		    pipe_config->pch_pfit.enabled != enable)
			pipe_config->base.connectors_changed = true;
	}

	ret = drm_atomic_commit(state);

put_state:
	if (ret == -EDEADLK) {
		drm_atomic_state_clear(state);
		drm_modeset_backoff(&ctx);
		goto retry;
	}

	drm_atomic_state_put(state);
unlock:
	WARN(ret, "Toggling workaround to %i returns %i\n", enable, ret);
	drm_modeset_drop_locks(&ctx);
	drm_modeset_acquire_fini(&ctx);
}