drm/i915: gen5+ can have FBC with multiple pipes (e489e38e) · Commits · 戴 / test

drivers/gpu/drm/i915/intel_fbc.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -477,17 +477,19 @@ static struct drm_crtc intel_fbc_find_crtc(struct drm_i915_private dev_priv)
		{
		struct drm_crtc crtc = NULL, tmp_crtc;
		enum pipe pipe;
		bool pipe_a_only = false;
		bool pipe_a_only = false, one_pipe_only = false;

		if (IS_HASWELL(dev_priv) \|\| INTEL_INFO(dev_priv)->gen >= 8)
		pipe_a_only = true;
		else if (INTEL_INFO(dev_priv)->gen <= 4)
		one_pipe_only = true;

		for_each_pipe(dev_priv, pipe) {
		tmp_crtc = dev_priv->pipe_to_crtc_mapping[pipe];

		if (intel_crtc_active(tmp_crtc) &&
		to_intel_crtc(tmp_crtc)->primary_enabled) {
		if (crtc) {
		if (one_pipe_only && crtc) {
		if (set_no_fbc_reason(dev_priv, FBC_MULTIPLE_PIPES))
		DRM_DEBUG_KMS("more than one pipe active, disabling compression\n");
		return NULL;