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Commit 85453402 authored by Raviteja Tamatam's avatar Raviteja Tamatam
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disp: msm: sde: avoid zero bus vote when display is active 



In targets where rsc is not supported minimum vote is not
present which might result in command fetch failures when
there is null commit. Made change to have minimum vote in such
cases.

Change-Id: Id7b58611cc9af8999b7112093fcf235950c8a1ee
Signed-off-by: default avatarRaviteja Tamatam <travitej@codeaurora.org>
parent 2f39b1a7

msm/sde/sde_core_perf.c

+5 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.

 * Copyright (c) 2016-2021, The Linux Foundation. All rights reserved.

 */



#define pr_fmt(fmt)	"[drm:%s:%d] " fmt, __func__, __LINE__
@@ -676,6 +676,10 @@ static void _sde_core_perf_crtc_update_bus(struct sde_kms *kms, 
	bus_ab_quota = max(bw_sum_of_intfs, kms->perf.perf_tune.min_bus_vote);

	bus_ib_quota = perf.max_per_pipe_ib[bus_id];



	if (!kms->perf.sde_rsc_available)

		bus_ib_quota = max(SDE_POWER_HANDLE_ENABLE_BUS_IB_QUOTA,

					bus_ib_quota);



	if (kms->perf.perf_tune.mode == SDE_PERF_MODE_FIXED) {

		bus_ab_quota = max(kms->perf.fix_core_ab_vote,

					bus_ab_quota);

msm/sde_power_handle.h

+2 −2
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.

 * Copyright (c) 2016-2021, The Linux Foundation. All rights reserved.

 */



#ifndef _SDE_POWER_HANDLE_H_
@@ -10,7 +10,7 @@ 


#define SDE_POWER_HANDLE_ENABLE_BUS_AB_QUOTA	0

#define SDE_POWER_HANDLE_DISABLE_BUS_AB_QUOTA	0

#define SDE_POWER_HANDLE_ENABLE_BUS_IB_QUOTA		400000000

#define SDE_POWER_HANDLE_ENABLE_BUS_IB_QUOTA		400000000ULL

#define SDE_POWER_HANDLE_ENABLE_NRT_BUS_IB_QUOTA	0

#define SDE_POWER_HANDLE_DISABLE_BUS_IB_QUOTA	0