linux/drivers/gpu/drm/amd/amdgpu/ta_ras_if.h

/****************************************************************************\
* 
*  File Name      ta_ras_if.h
*  Project        AMD PSP SW IP Module
*
*  Description    Interface to the RAS Trusted Application
*
*  Copyright 2019 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 _TA_RAS_IF_H
#define _TA_RAS_IF_H

/* Responses have bit 31 set */
#define RSP_ID_MASK (1U << 31)
#define RSP_ID(cmdId) (((uint32_t)(cmdId)) | RSP_ID_MASK)

#define TA_NUM_BLOCK_MAX		14

enum ras_command {
	TA_RAS_COMMAND__ENABLE_FEATURES = 0,
	TA_RAS_COMMAND__DISABLE_FEATURES,
	TA_RAS_COMMAND__TRIGGER_ERROR,
};

enum ta_ras_status {
	TA_RAS_STATUS__SUCCESS				= 0x00,
	TA_RAS_STATUS__RESET_NEEDED			= 0x01,
	TA_RAS_STATUS__ERROR_INVALID_PARAMETER		= 0x02,
	TA_RAS_STATUS__ERROR_RAS_NOT_AVAILABLE		= 0x03,
	TA_RAS_STATUS__ERROR_RAS_DUPLICATE_CMD		= 0x04,
	TA_RAS_STATUS__ERROR_INJECTION_FAILED		= 0x05
};

enum ta_ras_block {
	TA_RAS_BLOCK__UMC = 0,
	TA_RAS_BLOCK__SDMA,
	TA_RAS_BLOCK__GFX,
	TA_RAS_BLOCK__MMHUB,
	TA_RAS_BLOCK__ATHUB,
	TA_RAS_BLOCK__PCIE_BIF,
	TA_RAS_BLOCK__HDP,
	TA_RAS_BLOCK__XGMI_WAFL,
	TA_RAS_BLOCK__DF,
	TA_RAS_BLOCK__SMN,
	TA_RAS_BLOCK__SEM,
	TA_RAS_BLOCK__MP0,
	TA_RAS_BLOCK__MP1,
	TA_RAS_BLOCK__FUSE = (TA_NUM_BLOCK_MAX - 1),
};

enum ta_ras_error_type {
	TA_RAS_ERROR__NONE				= 0,
	TA_RAS_ERROR__PARITY				= 1,
	TA_RAS_ERROR__SINGLE_CORRECTABLE		= 2,
	TA_RAS_ERROR__MULTI_UNCORRECTABLE		= 4,
	TA_RAS_ERROR__POISON				= 8
};

struct ta_ras_enable_features_input {
	enum ta_ras_block       block_id;
	enum ta_ras_error_type  error_type;
};

struct ta_ras_disable_features_input {
	enum ta_ras_block       block_id;
	enum ta_ras_error_type  error_type;
};

struct ta_ras_trigger_error_input {
	enum ta_ras_block		block_id;
	enum ta_ras_error_type		inject_error_type;
	uint32_t			sub_block_index;
	uint64_t			address;
	uint64_t			value;
};

union ta_ras_cmd_input {
	struct ta_ras_enable_features_input	enable_features;
	struct ta_ras_disable_features_input	disable_features;
	struct ta_ras_trigger_error_input	trigger_error;
};

struct ta_ras_shared_memory {
	uint32_t			cmd_id;
	uint32_t			resp_id;
	enum ta_ras_status		ras_status;
	uint32_t			reserved;
	union ta_ras_cmd_input		ras_in_message;
};

#endif // TL_RAS_IF_H_