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Commit 9746de41 authored by Jordan Crouse's avatar Jordan Crouse Committed by Sharat Masetty
Browse files

drm/msm: Add devfreq support 



Try to initialize and use the 'simple_ondemand' devfreq governor.
If all the stars align the governor will poll every 10ms to
determine how busy the GPU is and adjust the frequency accordingly.

Change-Id: Ic0dedbad16d0733cbfd5b268fc14fa064192d864
Signed-off-by: default avatarJordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: default avatarVenkateswara Rao Tadikonda <vtadik@codeaurora.org>
Signed-off-by: default avatarSharat Masetty <smasetty@codeaurora.org>
parent c97c16c7

drivers/gpu/drm/msm/adreno/a3xx_gpu.c

+1 −3
Original line number Diff line number Diff line
@@ -2,7 +2,7 @@ 
 * Copyright (C) 2013 Red Hat

 * Author: Rob Clark <robdclark@gmail.com>

 *

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

 * Copyright (c) 2014,2018 The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 as published by
@@ -483,8 +483,6 @@ struct msm_gpu *a3xx_gpu_init(struct drm_device *dev) 
	adreno_gpu = &a3xx_gpu->base;

	gpu = &adreno_gpu->base;



	a3xx_gpu->pdev = pdev;



	gpu->perfcntrs = perfcntrs;

	gpu->num_perfcntrs = ARRAY_SIZE(perfcntrs);

drivers/gpu/drm/msm/adreno/a3xx_gpu.h

+2 −1
Original line number Diff line number Diff line
@@ -2,6 +2,8 @@ 
 * Copyright (C) 2013 Red Hat

 * Author: Rob Clark <robdclark@gmail.com>

 *

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

 *

 * This program is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 as published by

 * the Free Software Foundation.
@@ -28,7 +30,6 @@ 


struct a3xx_gpu {

	struct adreno_gpu base;

	struct platform_device *pdev;



	/* if OCMEM is used for GMEM: */

	uint32_t ocmem_base;

drivers/gpu/drm/msm/adreno/a4xx_gpu.c

+1 −3
Original line number Diff line number Diff line 
/* Copyright (c) 2014 The Linux Foundation. All rights reserved.

/* Copyright (c) 2014,2018 The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -560,8 +560,6 @@ struct msm_gpu *a4xx_gpu_init(struct drm_device *dev) 
	adreno_gpu = &a4xx_gpu->base;

	gpu = &adreno_gpu->base;



	a4xx_gpu->pdev = pdev;



	gpu->perfcntrs = NULL;

	gpu->num_perfcntrs = 0;

drivers/gpu/drm/msm/adreno/a4xx_gpu.h

+1 −2
Original line number Diff line number Diff line 
/* Copyright (c) 2014 The Linux Foundation. All rights reserved.

/* Copyright (c) 2014,2018 The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -23,7 +23,6 @@ 


struct a4xx_gpu {

	struct adreno_gpu base;

	struct platform_device *pdev;



	/* if OCMEM is used for GMEM: */

	uint32_t ocmem_base;

drivers/gpu/drm/msm/adreno/a5xx_counters.c

+2 −2
Original line number Diff line number Diff line 
/* Copyright (c) 2017 The Linux Foundation. All rights reserved.

/* Copyright (c) 2017-2018 The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -225,7 +225,7 @@ static void a5xx_counter_enable_alwayson_power(struct msm_gpu *gpu, 
static u64 a5xx_counter_read(struct msm_gpu *gpu,

		struct adreno_counter_group *group, int counterid)

{

	if (counterid >= group->nr_counters)

	if (counterid < 0 || counterid >= group->nr_counters)

		return 0;



	return gpu_read64(gpu, group->counters[counterid].lo,