201 lines
6.6 KiB
C
201 lines
6.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* Copyright 2015 IBM Corp.
|
|
*/
|
|
|
|
#ifndef _HCALLS_H
|
|
#define _HCALLS_H
|
|
|
|
#include <linux/types.h>
|
|
#include <asm/byteorder.h>
|
|
#include <asm/hvcall.h>
|
|
#include "cxl.h"
|
|
|
|
#define SG_BUFFER_SIZE 4096
|
|
#define SG_MAX_ENTRIES 256
|
|
|
|
struct sg_list {
|
|
u64 phys_addr;
|
|
u64 len;
|
|
};
|
|
|
|
/*
|
|
* This is straight out of PAPR, but replacing some of the compound fields with
|
|
* a single field, where they were identical to the register layout.
|
|
*
|
|
* The 'flags' parameter regroups the various bit-fields
|
|
*/
|
|
#define CXL_PE_CSRP_VALID (1ULL << 63)
|
|
#define CXL_PE_PROBLEM_STATE (1ULL << 62)
|
|
#define CXL_PE_SECONDARY_SEGMENT_TBL_SRCH (1ULL << 61)
|
|
#define CXL_PE_TAGS_ACTIVE (1ULL << 60)
|
|
#define CXL_PE_USER_STATE (1ULL << 59)
|
|
#define CXL_PE_TRANSLATION_ENABLED (1ULL << 58)
|
|
#define CXL_PE_64_BIT (1ULL << 57)
|
|
#define CXL_PE_PRIVILEGED_PROCESS (1ULL << 56)
|
|
|
|
#define CXL_PROCESS_ELEMENT_VERSION 1
|
|
struct cxl_process_element_hcall {
|
|
__be64 version;
|
|
__be64 flags;
|
|
u8 reserved0[12];
|
|
__be32 pslVirtualIsn;
|
|
u8 applicationVirtualIsnBitmap[256];
|
|
u8 reserved1[144];
|
|
struct cxl_process_element_common common;
|
|
u8 reserved4[12];
|
|
} __packed;
|
|
|
|
#define H_STATE_NORMAL 1
|
|
#define H_STATE_DISABLE 2
|
|
#define H_STATE_TEMP_UNAVAILABLE 3
|
|
#define H_STATE_PERM_UNAVAILABLE 4
|
|
|
|
/* NOTE: element must be a logical real address, and must be pinned */
|
|
long cxl_h_attach_process(u64 unit_address, struct cxl_process_element_hcall *element,
|
|
u64 *process_token, u64 *mmio_addr, u64 *mmio_size);
|
|
|
|
/**
|
|
* cxl_h_detach_process - Detach a process element from a coherent
|
|
* platform function.
|
|
*/
|
|
long cxl_h_detach_process(u64 unit_address, u64 process_token);
|
|
|
|
/**
|
|
* cxl_h_reset_afu - Perform a reset to the coherent platform function.
|
|
*/
|
|
long cxl_h_reset_afu(u64 unit_address);
|
|
|
|
/**
|
|
* cxl_h_suspend_process - Suspend a process from being executed
|
|
* Parameter1 = process-token as returned from H_ATTACH_CA_PROCESS when
|
|
* process was attached.
|
|
*/
|
|
long cxl_h_suspend_process(u64 unit_address, u64 process_token);
|
|
|
|
/**
|
|
* cxl_h_resume_process - Resume a process to be executed
|
|
* Parameter1 = process-token as returned from H_ATTACH_CA_PROCESS when
|
|
* process was attached.
|
|
*/
|
|
long cxl_h_resume_process(u64 unit_address, u64 process_token);
|
|
|
|
/**
|
|
* cxl_h_read_error_state - Reads the error state of the coherent
|
|
* platform function.
|
|
* R4 contains the error state
|
|
*/
|
|
long cxl_h_read_error_state(u64 unit_address, u64 *state);
|
|
|
|
/**
|
|
* cxl_h_get_afu_err - collect the AFU error buffer
|
|
* Parameter1 = byte offset into error buffer to retrieve, valid values
|
|
* are between 0 and (ibm,error-buffer-size - 1)
|
|
* Parameter2 = 4K aligned real address of error buffer, to be filled in
|
|
* Parameter3 = length of error buffer, valid values are 4K or less
|
|
*/
|
|
long cxl_h_get_afu_err(u64 unit_address, u64 offset, u64 buf_address, u64 len);
|
|
|
|
/**
|
|
* cxl_h_get_config - collect configuration record for the
|
|
* coherent platform function
|
|
* Parameter1 = # of configuration record to retrieve, valid values are
|
|
* between 0 and (ibm,#config-records - 1)
|
|
* Parameter2 = byte offset into configuration record to retrieve,
|
|
* valid values are between 0 and (ibm,config-record-size - 1)
|
|
* Parameter3 = 4K aligned real address of configuration record buffer,
|
|
* to be filled in
|
|
* Parameter4 = length of configuration buffer, valid values are 4K or less
|
|
*/
|
|
long cxl_h_get_config(u64 unit_address, u64 cr_num, u64 offset,
|
|
u64 buf_address, u64 len);
|
|
|
|
/**
|
|
* cxl_h_terminate_process - Terminate the process before completion
|
|
* Parameter1 = process-token as returned from H_ATTACH_CA_PROCESS when
|
|
* process was attached.
|
|
*/
|
|
long cxl_h_terminate_process(u64 unit_address, u64 process_token);
|
|
|
|
/**
|
|
* cxl_h_collect_vpd - Collect VPD for the coherent platform function.
|
|
* Parameter1 = # of VPD record to retrieve, valid values are between 0
|
|
* and (ibm,#config-records - 1).
|
|
* Parameter2 = 4K naturally aligned real buffer containing block
|
|
* list entries
|
|
* Parameter3 = number of block list entries in the block list, valid
|
|
* values are between 0 and 256
|
|
*/
|
|
long cxl_h_collect_vpd(u64 unit_address, u64 record, u64 list_address,
|
|
u64 num, u64 *out);
|
|
|
|
/**
|
|
* cxl_h_get_fn_error_interrupt - Read the function-wide error data based on an interrupt
|
|
*/
|
|
long cxl_h_get_fn_error_interrupt(u64 unit_address, u64 *reg);
|
|
|
|
/**
|
|
* cxl_h_ack_fn_error_interrupt - Acknowledge function-wide error data
|
|
* based on an interrupt
|
|
* Parameter1 = value to write to the function-wide error interrupt register
|
|
*/
|
|
long cxl_h_ack_fn_error_interrupt(u64 unit_address, u64 value);
|
|
|
|
/**
|
|
* cxl_h_get_error_log - Retrieve the Platform Log ID (PLID) of
|
|
* an error log
|
|
*/
|
|
long cxl_h_get_error_log(u64 unit_address, u64 value);
|
|
|
|
/**
|
|
* cxl_h_collect_int_info - Collect interrupt info about a coherent
|
|
* platform function after an interrupt occurred.
|
|
*/
|
|
long cxl_h_collect_int_info(u64 unit_address, u64 process_token,
|
|
struct cxl_irq_info *info);
|
|
|
|
/**
|
|
* cxl_h_control_faults - Control the operation of a coherent platform
|
|
* function after a fault occurs.
|
|
*
|
|
* Parameters
|
|
* control-mask: value to control the faults
|
|
* looks like PSL_TFC_An shifted >> 32
|
|
* reset-mask: mask to control reset of function faults
|
|
* Set reset_mask = 1 to reset PSL errors
|
|
*/
|
|
long cxl_h_control_faults(u64 unit_address, u64 process_token,
|
|
u64 control_mask, u64 reset_mask);
|
|
|
|
/**
|
|
* cxl_h_reset_adapter - Perform a reset to the coherent platform facility.
|
|
*/
|
|
long cxl_h_reset_adapter(u64 unit_address);
|
|
|
|
/**
|
|
* cxl_h_collect_vpd - Collect VPD for the coherent platform function.
|
|
* Parameter1 = 4K naturally aligned real buffer containing block
|
|
* list entries
|
|
* Parameter2 = number of block list entries in the block list, valid
|
|
* values are between 0 and 256
|
|
*/
|
|
long cxl_h_collect_vpd_adapter(u64 unit_address, u64 list_address,
|
|
u64 num, u64 *out);
|
|
|
|
/**
|
|
* cxl_h_download_adapter_image - Download the base image to the coherent
|
|
* platform facility.
|
|
*/
|
|
long cxl_h_download_adapter_image(u64 unit_address,
|
|
u64 list_address, u64 num,
|
|
u64 *out);
|
|
|
|
/**
|
|
* cxl_h_validate_adapter_image - Validate the base image in the coherent
|
|
* platform facility.
|
|
*/
|
|
long cxl_h_validate_adapter_image(u64 unit_address,
|
|
u64 list_address, u64 num,
|
|
u64 *out);
|
|
#endif /* _HCALLS_H */
|