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Commit da892c0b authored by Tatenda Chipeperekwa's avatar Tatenda Chipeperekwa
Browse files

disp: msm: update topology based on clock requirement 



Update the topology allocation by considering the required
mode clock (vtotal x htotal x fps * fudge factor). Modes with
a clock that exceeds the maximum SDE clock will be denoted as
requiring a topology that uses two layer mixers.

Change-Id: I3c773598b0d79cb6fea9d3a0e04d89ff84d67e13
Signed-off-by: default avatarTatenda Chipeperekwa <tatendac@codeaurora.org>
parent b8165c35

msm/dp/dp_display.c

+7 −2
Original line number Diff line number Diff line
@@ -2060,6 +2060,7 @@ static enum drm_mode_status dp_display_validate_mode( 
	struct dp_display_mode dp_mode;

	bool dsc_en;

	u32 num_lm = 0;

	int rc = 0;



	if (!dp_display || !mode || !panel ||

			!avail_res || !avail_res->max_mixer_width) {
@@ -2105,8 +2106,12 @@ static enum drm_mode_status dp_display_validate_mode( 
		goto end;

	}



	num_lm = (avail_res->max_mixer_width <= mode->hdisplay) ?

			2 : 1;

	rc = msm_get_mixer_count(dp->priv, mode, avail_res, &num_lm);

	if (rc) {

		DP_ERR("error getting mixer count. rc:%d\n", rc);

		goto end;

	}



	if (num_lm > avail_res->num_lm ||

			(num_lm == 2 && !avail_res->num_3dmux)) {

		DP_MST_DEBUG("num_lm:%d, req lm:%d 3dmux:%d\n", num_lm,

msm/dp/dp_drm.c

+13 −5
Original line number Diff line number Diff line
@@ -376,8 +376,6 @@ int dp_connector_get_mode_info(struct drm_connector *connector, 
		struct msm_mode_info *mode_info,

		void *display, const struct msm_resource_caps_info *avail_res)

{

	const u32 dual_lm = 2;

	const u32 single_lm = 1;

	const u32 single_intf = 1;

	const u32 no_enc = 0;

	struct msm_display_topology *topology;
@@ -385,9 +383,12 @@ int dp_connector_get_mode_info(struct drm_connector *connector, 
	struct dp_panel *dp_panel;

	struct dp_display_mode dp_mode;

	struct dp_display *dp_disp = display;

	struct msm_drm_private *priv;

	int rc = 0;



	if (!drm_mode || !mode_info || !avail_res ||

			!avail_res->max_mixer_width || !connector || !display) {

			!avail_res->max_mixer_width || !connector || !display ||

			!connector->dev || !connector->dev->dev_private) {

		DP_ERR("invalid params\n");

		return -EINVAL;

	}
@@ -396,10 +397,17 @@ int dp_connector_get_mode_info(struct drm_connector *connector, 


	sde_conn = to_sde_connector(connector);

	dp_panel = sde_conn->drv_panel;

	priv = connector->dev->dev_private;



	topology = &mode_info->topology;

	topology->num_lm = (avail_res->max_mixer_width < drm_mode->hdisplay) ?

							dual_lm : single_lm;



	rc = msm_get_mixer_count(priv, drm_mode, avail_res,

			&topology->num_lm);

	if (rc) {

		DP_ERR("error getting mixer count. rc:%d\n", rc);

		return rc;

	}



	topology->num_enc = no_enc;

	topology->num_intf = single_intf;

msm/msm_drv.c

+27 −0
Original line number Diff line number Diff line
@@ -1938,6 +1938,33 @@ msm_gem_smmu_address_space_get(struct drm_device *dev, 
	return funcs->get_address_space(priv->kms, domain);

}



int msm_get_mixer_count(struct msm_drm_private *priv,

		const struct drm_display_mode *mode,

		const struct msm_resource_caps_info *res, u32 *num_lm)

{

	struct msm_kms *kms;

	const struct msm_kms_funcs *funcs;



	if (!priv) {

		DRM_ERROR("invalid drm private struct\n");

		return -EINVAL;

	}



	kms = priv->kms;

	if (!kms) {

		DRM_ERROR("invalid msm kms struct\n");

		return -EINVAL;

	}



	funcs = kms->funcs;

	if (!funcs || !funcs->get_mixer_count) {

		DRM_ERROR("invalid function pointers\n");

		return -EINVAL;

	}



	return funcs->get_mixer_count(priv->kms, mode, res, num_lm);

}



static int msm_drm_bind(struct device *dev)

{

	return msm_drm_init(dev, &msm_driver);

msm/msm_drv.h

+4 −0
Original line number Diff line number Diff line
@@ -1029,4 +1029,8 @@ static inline unsigned long timeout_to_jiffies(const ktime_t *timeout) 
	return remaining_jiffies;

}



int msm_get_mixer_count(struct msm_drm_private *priv,

		const struct drm_display_mode *mode,

		const struct msm_resource_caps_info *res, u32 *num_lm);



#endif /* __MSM_DRV_H__ */

msm/msm_kms.h

+4 −0
Original line number Diff line number Diff line
@@ -122,6 +122,10 @@ struct msm_kms_funcs { 
	int (*cont_splash_config)(struct msm_kms *kms);

	/* check for continuous splash status */

	bool (*check_for_splash)(struct msm_kms *kms);

	/* topology information */

	int (*get_mixer_count)(const struct msm_kms *kms,

			const struct drm_display_mode *mode,

			const struct msm_resource_caps_info *res, u32 *num_lm);

};



struct msm_kms {