Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit c30e6d46 authored by Ingrid Gallardo's avatar Ingrid Gallardo Committed by Gerrit - the friendly Code Review server
Browse files

msm: mdss: update sde bandwidth vote for amortized prefill 



Update bandwidth vote calculation for video mode
panels, to account for the amortized prefill.

Change-Id: I2a62b0fbd15e678b21329184a5edc0502c33b413
Signed-off-by: default avatarIngrid Gallardo <ingridg@codeaurora.org>
parent 76f4cff9

drivers/video/msm/mdss/mdss_mdp_ctl.c

+171 −51
Original line number Diff line number Diff line
@@ -91,8 +91,6 @@ static inline u64 apply_inverse_fudge_factor(u64 val, 


static DEFINE_MUTEX(mdss_mdp_ctl_lock);



static u32 mdss_mdp_get_vbp_factor_max(struct mdss_mdp_ctl *ctl);



static inline u32 mdss_mdp_get_pclk_rate(struct mdss_mdp_ctl *ctl)

{

	struct mdss_panel_info *pinfo = &ctl->panel_data->panel_info;
@@ -761,6 +759,174 @@ u32 apply_comp_ratio_factor(u32 quota, 
	return quota;

}



static u32 mdss_mdp_get_vbp_factor(struct mdss_mdp_ctl *ctl)

{

	u32 fps, v_total, vbp, vbp_fac;

	struct mdss_panel_info *pinfo;



	if (!ctl || !ctl->panel_data)

		return 0;



	pinfo = &ctl->panel_data->panel_info;

	fps = mdss_panel_get_framerate(pinfo);

	v_total = mdss_panel_get_vtotal(pinfo);

	vbp = pinfo->lcdc.v_back_porch + pinfo->lcdc.v_pulse_width;

	vbp += pinfo->prg_fet;



	vbp_fac = (vbp) ? fps * v_total / vbp : 0;

	pr_debug("vbp_fac=%d vbp=%d v_total=%d\n", vbp_fac, vbp, v_total);



	return vbp_fac;

}



static u32 mdss_mdp_get_vbp_factor_max(struct mdss_mdp_ctl *ctl)

{

	u32 vbp_max = 0;

	int i;

	struct mdss_data_type *mdata;



	if (!ctl || !ctl->mdata)

		return 0;



	mdata = ctl->mdata;

	for (i = 0; i < mdata->nctl; i++) {

		struct mdss_mdp_ctl *ctl = mdata->ctl_off + i;

		u32 vbp_fac;



		/* skip command mode interfaces */

		if (test_bit(MDSS_QOS_SIMPLIFIED_PREFILL, mdata->mdss_qos_map)

				&& !ctl->is_video_mode)

			continue;



		if (mdss_mdp_ctl_is_power_on(ctl)) {

			vbp_fac = mdss_mdp_get_vbp_factor(ctl);

			vbp_max = max(vbp_max, vbp_fac);

		}

	}



	return vbp_max;

}



static u32 __calc_prefill_line_time_us(struct mdss_mdp_ctl *ctl)

{

	u32 fps, v_total, vbp, vbp_fac;

	struct mdss_panel_info *pinfo;



	if (!ctl || !ctl->panel_data)

		return 0;



	pinfo = &ctl->panel_data->panel_info;

	fps = mdss_panel_get_framerate(pinfo);

	v_total = mdss_panel_get_vtotal(pinfo);

	vbp = pinfo->lcdc.v_back_porch + pinfo->lcdc.v_pulse_width;

	vbp += pinfo->prg_fet;



	vbp_fac = mult_frac(USEC_PER_SEC, vbp, fps * v_total); /* use uS */

	pr_debug("vbp_fac=%d vbp=%d v_total=%d fps=%d\n",

		vbp_fac, vbp, v_total, fps);



	return vbp_fac;

}



static u32 __get_min_prefill_line_time_us(struct mdss_mdp_ctl *ctl)

{

	u32 vbp_min = 0;

	int i;

	struct mdss_data_type *mdata;



	if (!ctl || !ctl->mdata)

		return 0;



	mdata = ctl->mdata;

	for (i = 0; i < mdata->nctl; i++) {

		struct mdss_mdp_ctl *tmp_ctl = mdata->ctl_off + i;

		u32 vbp_fac;



		/* skip command mode interfaces */

		if (!tmp_ctl->is_video_mode)

			continue;



		if (mdss_mdp_ctl_is_power_on(tmp_ctl)) {

			vbp_fac = __calc_prefill_line_time_us(tmp_ctl);

			vbp_min = min(vbp_min, vbp_fac);

		}

	}



	return vbp_min;

}



static u32 mdss_mdp_calc_prefill_line_time(struct mdss_mdp_ctl *ctl,

	struct mdss_mdp_pipe *pipe)

{

	u32 prefill_us = 0;

	u32 prefill_amortized = 0;

	struct mdss_data_type *mdata;

	struct mdss_mdp_mixer *mixer;

	struct mdss_panel_info *pinfo;

	u32 fps, v_total;



	if (!ctl || !ctl->mdata)

		return 0;



	mixer = pipe->mixer_left;

	if (!mixer)

		return -EINVAL;



	pinfo = &ctl->panel_data->panel_info;

	fps = mdss_panel_get_framerate(pinfo);

	v_total = mdss_panel_get_vtotal(pinfo);



	/* calculate the minimum prefill */

	prefill_us = __get_min_prefill_line_time_us(ctl);



	/* if pipe is amortizable, add the amortized prefill contribution */

	if (mdss_mdp_is_amortizable_pipe(pipe, mixer, mdata)) {

		prefill_amortized = mult_frac(USEC_PER_SEC, pipe->src.y,

			fps * v_total);

		prefill_us += prefill_amortized;

	}



	return prefill_us;

}



static inline bool __is_multirect_high_pipe(struct mdss_mdp_pipe *pipe)

{

	struct mdss_mdp_pipe *next_pipe = pipe->multirect.next;



	return (pipe->src.y > next_pipe->src.y);

}



static u64 mdss_mdp_apply_prefill_factor(u64 prefill_bw,

	struct mdss_mdp_ctl *ctl, struct mdss_mdp_pipe *pipe)

{

	struct mdss_data_type *mdata = mdss_mdp_get_mdata();

	u64 total_prefill_bw;

	u32 prefill_time_us;



	if (test_bit(MDSS_QOS_TS_PREFILL, mdata->mdss_qos_map)) {



		/*

		 * for multi-rect serial mode, only take the contribution from

		 * pipe that belongs to the rect closest to the origin.

		 */

		if (pipe->multirect.mode == MDSS_MDP_PIPE_MULTIRECT_SERIAL &&

			__is_multirect_high_pipe(pipe)) {

			total_prefill_bw = 0;

			goto exit;

		}



		prefill_time_us = mdss_mdp_calc_prefill_line_time(ctl, pipe);

		total_prefill_bw = prefill_time_us ? DIV_ROUND_UP_ULL(

			USEC_PER_SEC * prefill_bw, prefill_time_us) : 0;

	} else {

		total_prefill_bw = prefill_bw *

			mdss_mdp_get_vbp_factor_max(ctl);

	}



exit:

	return total_prefill_bw;

}



u64 mdss_mdp_perf_calc_simplified_prefill(struct mdss_mdp_pipe *pipe,

	u32 v_total, u32 fps, struct mdss_mdp_ctl *ctl)

{
@@ -796,7 +962,9 @@ u64 mdss_mdp_perf_calc_simplified_prefill(struct mdss_mdp_pipe *pipe, 
			pipe->dst.h);

	}



	prefill_per_pipe *= prefill_lines * mdss_mdp_get_vbp_factor_max(ctl);

	prefill_per_pipe *= prefill_lines;

	prefill_per_pipe = mdss_mdp_apply_prefill_factor(prefill_per_pipe,

		ctl, pipe);



	pr_debug("pipe src: %dx%d bpp:%d\n",

		pipe->src.w, pipe->src.h, pipe->src_fmt->bpp);
@@ -1246,54 +1414,6 @@ int mdss_mdp_get_prefetch_lines(struct mdss_panel_info *pinfo) 
	return prefetch_avail;

}



static u32 mdss_mdp_get_vbp_factor(struct mdss_mdp_ctl *ctl)

{

	u32 fps, v_total, vbp, vbp_fac;

	struct mdss_panel_info *pinfo;



	if (!ctl || !ctl->panel_data)

		return 0;



	pinfo = &ctl->panel_data->panel_info;

	fps = mdss_panel_get_framerate(pinfo);

	v_total = mdss_panel_get_vtotal(pinfo);

	vbp = pinfo->lcdc.v_back_porch + pinfo->lcdc.v_pulse_width;

	vbp += pinfo->prg_fet;



	vbp_fac = (vbp) ? fps * v_total / vbp : 0;

	pr_debug("vbp_fac=%d vbp=%d v_total=%d\n", vbp_fac, vbp, v_total);



	return vbp_fac;

}



static u32 mdss_mdp_get_vbp_factor_max(struct mdss_mdp_ctl *ctl)

{

	u32 vbp_max = 0;

	int i;

	struct mdss_data_type *mdata;



	if (!ctl || !ctl->mdata)

		return 0;



	mdata = ctl->mdata;

	for (i = 0; i < mdata->nctl; i++) {

		struct mdss_mdp_ctl *ctl = mdata->ctl_off + i;

		u32 vbp_fac;



		/* skip command mode interfaces */

		if (test_bit(MDSS_QOS_SIMPLIFIED_PREFILL, mdata->mdss_qos_map)

				&& !ctl->is_video_mode)

			continue;



		if (mdss_mdp_ctl_is_power_on(ctl)) {

			vbp_fac = mdss_mdp_get_vbp_factor(ctl);

			vbp_max = max(vbp_max, vbp_fac);

		}

	}



	return vbp_max;

}



static bool mdss_mdp_video_mode_intf_connected(struct mdss_mdp_ctl *ctl)

{

	int i;