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Commit 88dcd535 authored by Jordan Crouse's avatar Jordan Crouse
Browse files

msm: kgsl: Make a device specific scales_bandwidth function 



To make it easier for the upcoming change to move GMU to a component
device make a real function to test if the target is capable of
scaling the bus bandwidth on the GMU.

Change-Id: Ic0dedbad255622428de2ac01a5833a9e28c9c3ac
Signed-off-by: default avatarJordan Crouse <jcrouse@codeaurora.org>
parent 9ee27267

drivers/gpu/msm/adreno_a6xx_gmu.c

+8 −0
Original line number Diff line number Diff line
@@ -1748,6 +1748,13 @@ static int a6xx_gmu_wait_for_active_transition( 
	return -ETIMEDOUT;

}



static bool a6xx_gmu_scales_bandwidth(struct kgsl_device *device)

{

	struct adreno_device *adreno_dev = ADRENO_DEVICE(device);



	return (ADRENO_GPUREV(adreno_dev) >= ADRENO_REV_A640);

}



struct gmu_dev_ops adreno_a6xx_gmudev = {

	.load_firmware = a6xx_gmu_load_firmware,

	.oob_set = a6xx_gmu_oob_set,
@@ -1767,4 +1774,5 @@ struct gmu_dev_ops adreno_a6xx_gmudev = { 
	.wait_for_active_transition = a6xx_gmu_wait_for_active_transition,

	.gmu2host_intr_mask = HFI_IRQ_MASK,

	.gmu_ao_intr_mask = GMU_AO_INT_MASK,

	.scales_bandwidth = a6xx_gmu_scales_bandwidth,

};

drivers/gpu/msm/kgsl_gmu_core.c

+5 −6
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.

 * Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.

 */



#include <linux/of.h>
@@ -98,13 +98,12 @@ bool gmu_core_gpmu_isenabled(struct kgsl_device *device) 


bool gmu_core_scales_bandwidth(struct kgsl_device *device)

{

	struct adreno_device *adreno_dev = ADRENO_DEVICE(device);

	struct gmu_dev_ops *ops = GMU_DEVICE_OPS(device);



	if (device->gmu_core.type == GMU_CORE_TYPE_PCC)

		return false;

	if (ops && ops->scales_bandwidth)

		return ops->scales_bandwidth(device);



	return gmu_core_gpmu_isenabled(device) &&

		   (ADRENO_GPUREV(adreno_dev) >= ADRENO_REV_A640);

	return false;

}



int gmu_core_init(struct kgsl_device *device)

drivers/gpu/msm/kgsl_gmu_core.h

+2 −1
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.

 * Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.

 */

#ifndef __KGSL_GMU_CORE_H

#define __KGSL_GMU_CORE_H
@@ -144,6 +144,7 @@ struct gmu_dev_ops { 
	void (*cooperative_reset)(struct kgsl_device *device);

	void (*halt_execution)(struct kgsl_device *device);

	int (*wait_for_active_transition)(struct kgsl_device *device);

	bool (*scales_bandwidth)(struct kgsl_device *device);

	const unsigned int gmu2host_intr_mask;

	const unsigned int gmu_ao_intr_mask;

};