Merge "msm: mdss: calculate prefill bandwidth using the worst case vbp" (67210f49) · Commits · e / devices / android_kernel_sony_msm8994

drivers/video/msm/mdss/mdss_mdp_ctl.c

+25 −1

Original line number	Diff line number	Diff line
		@@ -487,6 +487,29 @@ static u32 mdss_mdp_get_vbp_factor(struct mdss_mdp_ctl *ctl)
		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;

		if (ctl->power_on) {
		vbp_fac = mdss_mdp_get_vbp_factor(ctl);
		vbp_max = max(vbp_max, vbp_fac);
		}
		}

		return vbp_max;
		}

		static void mdss_mdp_perf_calc_ctl(struct mdss_mdp_ctl *ctl,
		struct mdss_mdp_perf_params *perf)
		{
		@@ -522,7 +545,8 @@ static void mdss_mdp_perf_calc_ctl(struct mdss_mdp_ctl *ctl,
		perf->bw_overlap = SZ_16M;

		if (ctl->intf_type != MDSS_MDP_NO_INTF) {
		u32 vbp_fac = mdss_mdp_get_vbp_factor(ctl);
		u32 vbp_fac = mdss_mdp_get_vbp_factor_max(ctl);

		perf->bw_prefill = perf->prefill_bytes;
		/*
		* Prefill bandwidth equals the amount of data (number