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Commit d0ecb4b7 authored by Sushmita Susheelendra's avatar Sushmita Susheelendra
Browse files

msm: kgsl: Change throttling counter weight from 15% to 5% 



Change weights for throttling counters from (15%, 50%, 90%)
to (5%, 50%, 90%) for GMU FW step version > 0x104.

Change-Id: Ia98303dc894ac07e285e8145923d6ad1c152b3cf
Signed-off-by: default avatarSushmita Susheelendra <ssusheel@codeaurora.org>
parent ebfbb23f

drivers/gpu/msm/adreno_a6xx.c

+11 −2
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ 
#include "kgsl.h"

#include "kgsl_hfi.h"

#include "kgsl_trace.h"

#include "kgsl_gmu.h"



#define MIN_HBB		13
@@ -1445,6 +1446,8 @@ static int64_t a6xx_read_throttling_counters(struct adreno_device *adreno_dev) 
	int64_t adj = -1;

	uint32_t counts[ADRENO_GPMU_THROTTLE_COUNTERS];

	struct adreno_busy_data *busy = &adreno_dev->busy_data;

	struct kgsl_device *device = KGSL_DEVICE(adreno_dev);

	struct gmu_device *gmu = KGSL_GMU_DEVICE(device);



	for (i = 0; i < ARRAY_SIZE(counts); i++) {

		if (!adreno_dev->gpmu_throttle_counters[i])
@@ -1458,12 +1461,18 @@ static int64_t a6xx_read_throttling_counters(struct adreno_device *adreno_dev) 
	/*

	 * The adjustment is the number of cycles lost to throttling, which

	 * is calculated as a weighted average of the cycles throttled

	 * at 15%, 50%, and 90%. The adjustment is negative because in A6XX,

	 * at 5% or 15% based on GMU FW version, 50%, and 90%.

	 * The adjustment is negative because in A6XX,

	 * the busy count includes the throttled cycles. Therefore, we want

	 * to remove them to prevent appearing to be busier than

	 * we actually are.

	 */

	adj *= ((counts[0] * 15) + (counts[1] * 50) + (counts[2] * 90)) / 100;

	if (GMU_VER_STEP(gmu->ver) > 0x104)

		adj *= ((counts[0] * 5) + (counts[1] * 50) + (counts[2] * 90))

			/ 100;

	else

		adj *= ((counts[0] * 15) + (counts[1] * 50) + (counts[2] * 90))

			/ 100;



	trace_kgsl_clock_throttling(0, counts[1], counts[2],

			counts[0], adj);

drivers/gpu/msm/adreno_a6xx_gmu.c

+5 −1
Original line number Diff line number Diff line
@@ -1316,7 +1316,7 @@ static uint32_t lm_limit(struct adreno_device *adreno_dev) 
}



static int a640_throttling_counters[ADRENO_GPMU_THROTTLE_COUNTERS] = {

	0x11, 0x15, 0x19

	0x11, 0x15, 0x19,

};



static void _setup_throttling_counters(struct adreno_device *adreno_dev)
@@ -1325,6 +1325,10 @@ static void _setup_throttling_counters(struct adreno_device *adreno_dev) 
	struct gmu_device *gmu = KGSL_GMU_DEVICE(device);

	int i, ret;



	/* Select counter for 5% throttling instead of 15% */

	if (GMU_VER_STEP(gmu->ver) > 0x104)

		a640_throttling_counters[0] = 0x10;



	for (i = 0; i < ARRAY_SIZE(a640_throttling_counters); i++) {

		adreno_dev->busy_data.throttle_cycles[i] = 0;

drivers/gpu/msm/kgsl_gmu_core.h

+7 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2018, The Linux Foundation. All rights reserved.

/* Copyright (c) 2018-2019, 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
@@ -21,6 +21,12 @@ 
	(((_devops) != NULL) && \

	 ((_devops)->_field != NULL))



#define GMU_VER_MAJOR(ver) (((ver) >> 28) & 0xF)

#define GMU_VER_MINOR(ver) (((ver) >> 16) & 0xFFF)

#define GMU_VER_STEP(ver) (((ver) >> 0) & 0xFFFF)

#define GMU_VERSION(major, minor) \

	((((major) & 0xF) << 28) | (((minor) & 0xFFF) << 16))



#define NUM_BW_LEVELS		100

#define MAX_GX_LEVELS		16

#define MAX_CX_LEVELS		4

drivers/gpu/msm/kgsl_hfi.c

+1 −6
Original line number Diff line number Diff line 
/* Copyright (c) 2018, The Linux Foundation. All rights reserved.

/* Copyright (c) 2018-2019, 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
@@ -628,11 +628,6 @@ void hfi_receiver(unsigned long data) 
	hfi_process_queue((struct gmu_device *) data, HFI_DBG_ID, NULL);

}



#define GMU_VER_MAJOR(ver) (((ver) >> 28) & 0xF)

#define GMU_VER_MINOR(ver) (((ver) >> 16) & 0xFFF)

#define GMU_VERSION(major, minor) \

	((((major) & 0xF) << 28) | (((minor) & 0xFFF) << 16))



static int hfi_verify_fw_version(struct kgsl_device *device,

		struct gmu_device *gmu)

{