[Intel-gfx] [PATCH 2/6] drm/i915: use compute_config in set_config v3

[Jesse Barnes]

This will allow us to consult more info before deciding whether to flip
or do a full mode set.

v2:
  - don't use uninitialized or incorrect pipe masks in set_config
    failure path (Ander)
v3:
  - fixup for pipe_config changes in compute_config (Jesse)

Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
---
 drivers/gpu/drm/i915/intel_display.c | 36 +++++++++++++++++++++++++++++++++---
 1 file changed, 33 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a3ebab8..cb96f11 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -11178,6 +11178,8 @@ static int intel_crtc_set_config(struct drm_mode_set *set)
 	struct drm_device *dev;
 	struct drm_mode_set save_set;
 	struct intel_set_config *config;
+	struct intel_crtc_config *pipe_config;
+	unsigned modeset_pipes, prepare_pipes, disable_pipes;
 	int ret;
 
 	BUG_ON(!set);
@@ -11223,9 +11225,23 @@ static int intel_crtc_set_config(struct drm_mode_set *set)
 	if (ret)
 		goto fail;
 
+	pipe_config = intel_modeset_compute_config(set->crtc, set->mode,
+						   set->fb,
+						   &modeset_pipes,
+						   &prepare_pipes,
+						   &disable_pipes);
+	if (IS_ERR(pipe_config))
+		goto fail;
+
+	/* set_mode will free it in the mode_changed case */
+	if (!config->mode_changed)
+		kfree(pipe_config);
+
 	if (config->mode_changed) {
-		ret = intel_set_mode(set->crtc, set->mode,
-				     set->x, set->y, set->fb);
+		ret = intel_set_mode_pipes(set->crtc, set->mode,
+					   set->x, set->y, set->fb, pipe_config,
+					   modeset_pipes, prepare_pipes,
+					   disable_pipes);
 	} else if (config->fb_changed) {
 		struct intel_crtc *intel_crtc = to_intel_crtc(set->crtc);
 
@@ -13198,6 +13214,20 @@ void intel_modeset_setup_hw_state(struct drm_device *dev,
 		for_each_pipe(dev_priv, pipe) {
 			struct drm_crtc *crtc =
 				dev_priv->pipe_to_crtc_mapping[pipe];
+			struct intel_crtc_config *pipe_config;
+			unsigned modeset_pipes, prepare_pipes, disable_pipes;
+
+			pipe_config = intel_modeset_compute_config(crtc,
+								   &crtc->mode,
+								   crtc->primary->fb,
+								   &modeset_pipes,
+								   &prepare_pipes,
+								   &disable_pipes);
+			if (IS_ERR(pipe_config)) {
+				DRM_DEBUG_KMS("prepare failed\n");
+				kfree(pipe_config);
+				goto out;
+			}
 
 			intel_set_mode(crtc, &crtc->mode, crtc->x, crtc->y,
 				       crtc->primary->fb);
@@ -13205,7 +13235,7 @@ void intel_modeset_setup_hw_state(struct drm_device *dev,
 	} else {
 		intel_modeset_update_staged_output_state(dev);
 	}
-
+out:
 	intel_modeset_check_state(dev);
 }
 
-- 
1.9.1