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Commit caa5fa42 authored by Andhavarapu Karthik's avatar Andhavarapu Karthik
Browse files

disp: msm: sde: take min ib votes from perf config 



Changes are made to get minimum ib vote for each bus from
device tree entries rather than static values.

Change-Id: Ibecb44ac6b8673c5d5b8979014c215ab3ce9e43f
Signed-off-by: default avatarAndhavarapu Karthik <quic_kartkart@quicinc.com>
parent 6c7d4ccc

msm/sde_power_handle.c

+55 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.

 * Copyright (c) 2014-2021, The Linux Foundation. All rights reserved.

 */
@@ -455,6 +456,40 @@ static int sde_power_mnoc_bus_parse(struct platform_device *pdev, 
	return rc;

}



static void sde_power_parse_ib_votes(struct platform_device *pdev,

	struct sde_power_handle *phandle)

{

	int rc = 0;

	u32 tmp = 0;



	if (!pdev || !phandle) {

		pr_err("invalid input param pdev:%pK phandle:%pK\n", pdev,

						phandle);

		return;

	}



	rc = of_property_read_u32(pdev->dev.of_node,

			"qcom,sde-min-core-ib-kbps", &tmp);

	if (rc)

		pr_err("error reading min core ib vote. rc=%d, np=%x\n", rc, pdev->dev.of_node);



	phandle->min_ib_vote.min_core_ib = (!rc ? tmp*1000 : 0);



	rc = of_property_read_u32(pdev->dev.of_node,

			"qcom,sde-min-llcc-ib-kbps", &tmp);

	if (rc)

		pr_err("error reading min llcc ib vote. rc=%d\n", rc);



	phandle->min_ib_vote.min_llcc_ib = (!rc ? tmp*1000 : 0);



	rc = of_property_read_u32(pdev->dev.of_node,

			"qcom,sde-min-dram-ib-kbps", &tmp);

	if (rc)

		pr_err("error reading min dram ib vote. rc=%d\n", rc);



	phandle->min_ib_vote.min_dram_ib = (!rc ? tmp*1000 : 0);

}



static int sde_power_bus_parse(struct platform_device *pdev,

	struct sde_power_handle *phandle)

{
@@ -599,6 +634,8 @@ int sde_power_resource_init(struct platform_device *pdev, 
		goto bus_err;

	}



	sde_power_parse_ib_votes(pdev, phandle);



	INIT_LIST_HEAD(&phandle->event_list);



	phandle->rsc_client = NULL;
@@ -695,6 +732,7 @@ int sde_power_resource_enable(struct sde_power_handle *phandle, bool enable) 
{

	int rc = 0, i = 0;

	struct dss_module_power *mp;

	u32 bus_ib_quota = 0;



	if (!phandle) {

		pr_err("invalid input argument\n");
@@ -718,10 +756,26 @@ int sde_power_resource_enable(struct sde_power_handle *phandle, bool enable) 


		for (i = 0; i < SDE_POWER_HANDLE_DBUS_ID_MAX &&

			phandle->data_bus_handle[i].data_paths_cnt > 0; i++) {



			bus_ib_quota = 0;

			switch (i) {

			case SDE_POWER_HANDLE_DBUS_ID_MNOC:

				bus_ib_quota =

					phandle->min_ib_vote.min_core_ib;

				break;

			case SDE_POWER_HANDLE_DBUS_ID_LLCC:

				bus_ib_quota =

					phandle->min_ib_vote.min_llcc_ib;

				break;

			case SDE_POWER_HANDLE_DBUS_ID_EBI:

				bus_ib_quota =

					phandle->min_ib_vote.min_dram_ib;

			}



			rc = _sde_power_data_bus_set_quota(

				&phandle->data_bus_handle[i],

				SDE_POWER_HANDLE_ENABLE_BUS_AB_QUOTA,

				SDE_POWER_HANDLE_ENABLE_BUS_IB_QUOTA);

				bus_ib_quota);

			if (rc) {

				pr_err("failed to set data bus vote id=%d rc=%d\n",

						i, rc);

msm/sde_power_handle.h

+14 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.

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

 */
@@ -125,6 +126,18 @@ struct sde_power_reg_bus_handle { 
	struct sde_power_bus_scaling_data scale_table[VOTE_INDEX_MAX];

};



/**

 * struct sde_min_ib_vote: ib votes on data bus

 * @min_core_ib: ib vote on mnoc

 * @min_llcc_ib: ib vote on llcc

 * @min_dram_ib: ib vote on dram

 */

struct sde_min_ib_vote {

	u32 min_core_ib;

	u32 min_llcc_ib;

	u32 min_dram_ib;

};



/*

 * struct sde_power_event - local event registration structure

 * @client_name: name of the client registering
@@ -165,6 +178,7 @@ struct sde_power_handle { 
	u32 last_event_handled;

	struct sde_rsc_client *rsc_client;

	bool rsc_client_init;

	struct sde_min_ib_vote min_ib_vote;

};



/**