Commit 36eac4dd authored by Jim Qu's avatar Jim Qu Committed by Alex Deucher
Browse files

drm/amdpgu: add common functions for BACO feature in PP (v2) 



V2: squash in crash fix for non-register commands (Alex)

Signed-off-by: default avatarJim Qu <Jim.Qu@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 7451ca88

drivers/gpu/drm/amd/powerplay/hwmgr/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -35,7 +35,7 @@ HARDWARE_MGR = hwmgr.o processpptables.o \ 
		vega12_thermal.o \

		pp_overdriver.o smu_helper.o \

		vega20_processpptables.o vega20_hwmgr.o vega20_powertune.o \

		vega20_thermal.o

		vega20_thermal.o common_baco.o



AMD_PP_HWMGR = $(addprefix $(AMD_PP_PATH)/hwmgr/,$(HARDWARE_MGR))

drivers/gpu/drm/amd/powerplay/hwmgr/common_baco.c

0 → 100644
+101 −0
Original line number Diff line number Diff line 
/*

 * Copyright 2018 Advanced Micro Devices, Inc.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR

 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 * OTHER DEALINGS IN THE SOFTWARE.

 *

 */



#include "common_baco.h"





static bool baco_wait_register(struct pp_hwmgr *hwmgr, u32 reg, u32 mask, u32 value)

{

	struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev);

	u32 timeout = 5000, data;



	do {

		msleep(1);

		data = RREG32(reg);

		timeout--;

	} while (value != (data & mask) && (timeout != 0));



	if (timeout == 0)

		return false;



	return true;

}



static bool baco_cmd_handler(struct pp_hwmgr *hwmgr, u32 command, u32 reg, u32 mask,

			        u32 shift, u32 value, u32 timeout)

{

	struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev);

	u32 data;

	bool ret = true;



	switch (command) {

	case CMD_WRITE:

		WREG32(reg, value << shift);

		break;

	case CMD_READMODIFYWRITE:

		data = RREG32(reg);

		data = (data & (~mask)) | (value << shift);

		WREG32(reg, data);

		break;

	case CMD_WAITFOR:

		ret = baco_wait_register(hwmgr, reg, mask, value);

		break;

	case CMD_DELAY_MS:

		if (timeout)

			/* Delay in milli Seconds */

			msleep(timeout);

		break;

	case CMD_DELAY_US:

		if (timeout)

			/* Delay in micro Seconds */

			udelay(timeout);

		break;



	default:

		dev_warn(adev->dev, "Invalid BACO command.\n");

		ret = false;

	}



	return ret;

}



bool soc15_baco_program_registers(struct pp_hwmgr *hwmgr,

				 const struct soc15_baco_cmd_entry *entry,

				 const u32 array_size)

{

	struct amdgpu_device *adev = (struct amdgpu_device *)(hwmgr->adev);

	u32 i, reg = 0;



	for (i = 0; i < array_size; i++) {

		if ((entry[i].cmd == CMD_WRITE) ||

		    (entry[i].cmd == CMD_READMODIFYWRITE) ||

		    (entry[i].cmd == CMD_WAITFOR))

			reg = adev->reg_offset[entry[i].hwip][entry[i].inst][entry[i].seg]

				+ entry[i].reg_offset;

		if (!baco_cmd_handler(hwmgr, entry[i].cmd, reg, entry[i].mask,

				     entry[i].shift, entry[i].val, entry[i].timeout))

			return false;

	}



	return true;

}

drivers/gpu/drm/amd/powerplay/hwmgr/common_baco.h

0 → 100644
+50 −0
Original line number Diff line number Diff line 
/*

 * Copyright 2018 Advanced Micro Devices, Inc.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR

 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 * OTHER DEALINGS IN THE SOFTWARE.

 *

 */

#ifndef __COMMON_BOCO_H__

#define __COMMON_BOCO_H__

#include "hwmgr.h"





enum baco_cmd_type {

	CMD_WRITE = 0,

	CMD_READMODIFYWRITE,

	CMD_WAITFOR,

	CMD_DELAY_MS,

	CMD_DELAY_US,

};



struct soc15_baco_cmd_entry {

	enum baco_cmd_type cmd;

	uint32_t 	hwip;

	uint32_t 	inst;

	uint32_t 	seg;

	uint32_t 	reg_offset;

	uint32_t     	mask;

	uint32_t     	shift;

	uint32_t     	timeout;

	uint32_t     	val;

};

extern bool soc15_baco_program_registers(struct pp_hwmgr *hwmgr,

					const struct soc15_baco_cmd_entry *entry,

					const u32 array_size);

#endif