diff options
Diffstat (limited to 'drivers/misc/cxl/hcalls.c')
| -rw-r--r-- | drivers/misc/cxl/hcalls.c | 643 |
1 files changed, 0 insertions, 643 deletions
diff --git a/drivers/misc/cxl/hcalls.c b/drivers/misc/cxl/hcalls.c deleted file mode 100644 index aba5e20eeb1f..000000000000 --- a/drivers/misc/cxl/hcalls.c +++ /dev/null @@ -1,643 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Copyright 2015 IBM Corp. - */ - - -#include <linux/compiler.h> -#include <linux/types.h> -#include <linux/delay.h> -#include <asm/byteorder.h> -#include "hcalls.h" -#include "trace.h" - -#define CXL_HCALL_TIMEOUT 60000 -#define CXL_HCALL_TIMEOUT_DOWNLOAD 120000 - -#define H_ATTACH_CA_PROCESS 0x344 -#define H_CONTROL_CA_FUNCTION 0x348 -#define H_DETACH_CA_PROCESS 0x34C -#define H_COLLECT_CA_INT_INFO 0x350 -#define H_CONTROL_CA_FAULTS 0x354 -#define H_DOWNLOAD_CA_FUNCTION 0x35C -#define H_DOWNLOAD_CA_FACILITY 0x364 -#define H_CONTROL_CA_FACILITY 0x368 - -#define H_CONTROL_CA_FUNCTION_RESET 1 /* perform a reset */ -#define H_CONTROL_CA_FUNCTION_SUSPEND_PROCESS 2 /* suspend a process from being executed */ -#define H_CONTROL_CA_FUNCTION_RESUME_PROCESS 3 /* resume a process to be executed */ -#define H_CONTROL_CA_FUNCTION_READ_ERR_STATE 4 /* read the error state */ -#define H_CONTROL_CA_FUNCTION_GET_AFU_ERR 5 /* collect the AFU error buffer */ -#define H_CONTROL_CA_FUNCTION_GET_CONFIG 6 /* collect configuration record */ -#define H_CONTROL_CA_FUNCTION_GET_DOWNLOAD_STATE 7 /* query to return download status */ -#define H_CONTROL_CA_FUNCTION_TERMINATE_PROCESS 8 /* terminate the process before completion */ -#define H_CONTROL_CA_FUNCTION_COLLECT_VPD 9 /* collect VPD */ -#define H_CONTROL_CA_FUNCTION_GET_FUNCTION_ERR_INT 11 /* read the function-wide error data based on an interrupt */ -#define H_CONTROL_CA_FUNCTION_ACK_FUNCTION_ERR_INT 12 /* acknowledge function-wide error data based on an interrupt */ -#define H_CONTROL_CA_FUNCTION_GET_ERROR_LOG 13 /* retrieve the Platform Log ID (PLID) of an error log */ - -#define H_CONTROL_CA_FAULTS_RESPOND_PSL 1 -#define H_CONTROL_CA_FAULTS_RESPOND_AFU 2 - -#define H_CONTROL_CA_FACILITY_RESET 1 /* perform a reset */ -#define H_CONTROL_CA_FACILITY_COLLECT_VPD 2 /* collect VPD */ - -#define H_DOWNLOAD_CA_FACILITY_DOWNLOAD 1 /* download adapter image */ -#define H_DOWNLOAD_CA_FACILITY_VALIDATE 2 /* validate adapter image */ - - -#define _CXL_LOOP_HCALL(call, rc, retbuf, fn, ...) \ - { \ - unsigned int delay, total_delay = 0; \ - u64 token = 0; \ - \ - memset(retbuf, 0, sizeof(retbuf)); \ - while (1) { \ - rc = call(fn, retbuf, __VA_ARGS__, token); \ - token = retbuf[0]; \ - if (rc != H_BUSY && !H_IS_LONG_BUSY(rc)) \ - break; \ - \ - if (rc == H_BUSY) \ - delay = 10; \ - else \ - delay = get_longbusy_msecs(rc); \ - \ - total_delay += delay; \ - if (total_delay > CXL_HCALL_TIMEOUT) { \ - WARN(1, "Warning: Giving up waiting for CXL hcall " \ - "%#x after %u msec\n", fn, total_delay); \ - rc = H_BUSY; \ - break; \ - } \ - msleep(delay); \ - } \ - } -#define CXL_H_WAIT_UNTIL_DONE(...) _CXL_LOOP_HCALL(plpar_hcall, __VA_ARGS__) -#define CXL_H9_WAIT_UNTIL_DONE(...) _CXL_LOOP_HCALL(plpar_hcall9, __VA_ARGS__) - -#define _PRINT_MSG(rc, format, ...) \ - { \ - if ((rc != H_SUCCESS) && (rc != H_CONTINUE)) \ - pr_err(format, __VA_ARGS__); \ - else \ - pr_devel(format, __VA_ARGS__); \ - } \ - - -static char *afu_op_names[] = { - "UNKNOWN_OP", /* 0 undefined */ - "RESET", /* 1 */ - "SUSPEND_PROCESS", /* 2 */ - "RESUME_PROCESS", /* 3 */ - "READ_ERR_STATE", /* 4 */ - "GET_AFU_ERR", /* 5 */ - "GET_CONFIG", /* 6 */ - "GET_DOWNLOAD_STATE", /* 7 */ - "TERMINATE_PROCESS", /* 8 */ - "COLLECT_VPD", /* 9 */ - "UNKNOWN_OP", /* 10 undefined */ - "GET_FUNCTION_ERR_INT", /* 11 */ - "ACK_FUNCTION_ERR_INT", /* 12 */ - "GET_ERROR_LOG", /* 13 */ -}; - -static char *control_adapter_op_names[] = { - "UNKNOWN_OP", /* 0 undefined */ - "RESET", /* 1 */ - "COLLECT_VPD", /* 2 */ -}; - -static char *download_op_names[] = { - "UNKNOWN_OP", /* 0 undefined */ - "DOWNLOAD", /* 1 */ - "VALIDATE", /* 2 */ -}; - -static char *op_str(unsigned int op, char *name_array[], int array_len) -{ - if (op >= array_len) - return "UNKNOWN_OP"; - return name_array[op]; -} - -#define OP_STR(op, name_array) op_str(op, name_array, ARRAY_SIZE(name_array)) - -#define OP_STR_AFU(op) OP_STR(op, afu_op_names) -#define OP_STR_CONTROL_ADAPTER(op) OP_STR(op, control_adapter_op_names) -#define OP_STR_DOWNLOAD_ADAPTER(op) OP_STR(op, download_op_names) - - -long cxl_h_attach_process(u64 unit_address, - struct cxl_process_element_hcall *element, - u64 *process_token, u64 *mmio_addr, u64 *mmio_size) -{ - unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; - long rc; - - CXL_H_WAIT_UNTIL_DONE(rc, retbuf, H_ATTACH_CA_PROCESS, unit_address, virt_to_phys(element)); - _PRINT_MSG(rc, "cxl_h_attach_process(%#.16llx, %#.16lx): %li\n", - unit_address, virt_to_phys(element), rc); - trace_cxl_hcall_attach(unit_address, virt_to_phys(element), retbuf[0], retbuf[1], retbuf[2], rc); - - pr_devel("token: 0x%.8lx mmio_addr: 0x%lx mmio_size: 0x%lx\nProcess Element Structure:\n", - retbuf[0], retbuf[1], retbuf[2]); - cxl_dump_debug_buffer(element, sizeof(*element)); - - switch (rc) { - case H_SUCCESS: /* The process info is attached to the coherent platform function */ - *process_token = retbuf[0]; - if (mmio_addr) - *mmio_addr = retbuf[1]; - if (mmio_size) - *mmio_size = retbuf[2]; - return 0; - case H_PARAMETER: /* An incorrect parameter was supplied. */ - case H_FUNCTION: /* The function is not supported. */ - return -EINVAL; - case H_AUTHORITY: /* The partition does not have authority to perform this hcall */ - case H_RESOURCE: /* The coherent platform function does not have enough additional resource to attach the process */ - case H_HARDWARE: /* A hardware event prevented the attach operation */ - case H_STATE: /* The coherent platform function is not in a valid state */ - case H_BUSY: - return -EBUSY; - default: - WARN(1, "Unexpected return code: %lx", rc); - return -EINVAL; - } -} - -/* - * cxl_h_detach_process - Detach a process element from a coherent - * platform function. - */ -long cxl_h_detach_process(u64 unit_address, u64 process_token) -{ - unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; - long rc; - - CXL_H_WAIT_UNTIL_DONE(rc, retbuf, H_DETACH_CA_PROCESS, unit_address, process_token); - _PRINT_MSG(rc, "cxl_h_detach_process(%#.16llx, 0x%.8llx): %li\n", unit_address, process_token, rc); - trace_cxl_hcall_detach(unit_address, process_token, rc); - - switch (rc) { - case H_SUCCESS: /* The process was detached from the coherent platform function */ - return 0; - case H_PARAMETER: /* An incorrect parameter was supplied. */ - return -EINVAL; - case H_AUTHORITY: /* The partition does not have authority to perform this hcall */ - case H_RESOURCE: /* The function has page table mappings for MMIO */ - case H_HARDWARE: /* A hardware event prevented the detach operation */ - case H_STATE: /* The coherent platform function is not in a valid state */ - case H_BUSY: - return -EBUSY; - default: - WARN(1, "Unexpected return code: %lx", rc); - return -EINVAL; - } -} - -/* - * cxl_h_control_function - This H_CONTROL_CA_FUNCTION hypervisor call allows - * the partition to manipulate or query - * certain coherent platform function behaviors. - */ -static long cxl_h_control_function(u64 unit_address, u64 op, - u64 p1, u64 p2, u64 p3, u64 p4, u64 *out) -{ - unsigned long retbuf[PLPAR_HCALL9_BUFSIZE]; - long rc; - - CXL_H9_WAIT_UNTIL_DONE(rc, retbuf, H_CONTROL_CA_FUNCTION, unit_address, op, p1, p2, p3, p4); - _PRINT_MSG(rc, "cxl_h_control_function(%#.16llx, %s(%#llx, %#llx, %#llx, %#llx, R4: %#lx)): %li\n", - unit_address, OP_STR_AFU(op), p1, p2, p3, p4, retbuf[0], rc); - trace_cxl_hcall_control_function(unit_address, OP_STR_AFU(op), p1, p2, p3, p4, retbuf[0], rc); - - switch (rc) { - case H_SUCCESS: /* The operation is completed for the coherent platform function */ - if ((op == H_CONTROL_CA_FUNCTION_GET_FUNCTION_ERR_INT || - op == H_CONTROL_CA_FUNCTION_READ_ERR_STATE || - op == H_CONTROL_CA_FUNCTION_COLLECT_VPD)) - *out = retbuf[0]; - return 0; - case H_PARAMETER: /* An incorrect parameter was supplied. */ - case H_FUNCTION: /* The function is not supported. */ - case H_NOT_FOUND: /* The operation supplied was not valid */ - case H_NOT_AVAILABLE: /* The operation cannot be performed because the AFU has not been downloaded */ - case H_SG_LIST: /* An block list entry was invalid */ - return -EINVAL; - case H_AUTHORITY: /* The partition does not have authority to perform this hcall */ - case H_RESOURCE: /* The function has page table mappings for MMIO */ - case H_HARDWARE: /* A hardware event prevented the attach operation */ - case H_STATE: /* The coherent platform function is not in a valid state */ - case H_BUSY: - return -EBUSY; - default: - WARN(1, "Unexpected return code: %lx", rc); - return -EINVAL; - } -} - -/* - * cxl_h_reset_afu - Perform a reset to the coherent platform function. - */ -long cxl_h_reset_afu(u64 unit_address) -{ - return cxl_h_control_function(unit_address, - H_CONTROL_CA_FUNCTION_RESET, - 0, 0, 0, 0, - NULL); -} - -/* - * 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) -{ - return cxl_h_control_function(unit_address, - H_CONTROL_CA_FUNCTION_SUSPEND_PROCESS, - process_token, 0, 0, 0, - NULL); -} - -/* - * 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) -{ - return cxl_h_control_function(unit_address, - H_CONTROL_CA_FUNCTION_RESUME_PROCESS, - process_token, 0, 0, 0, - NULL); -} - -/* - * cxl_h_read_error_state - Checks the error state of the coherent - * platform function. - * R4 contains the error state - */ -long cxl_h_read_error_state(u64 unit_address, u64 *state) -{ - return cxl_h_control_function(unit_address, - H_CONTROL_CA_FUNCTION_READ_ERR_STATE, - 0, 0, 0, 0, - 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) -{ - return cxl_h_control_function(unit_address, - H_CONTROL_CA_FUNCTION_GET_AFU_ERR, - offset, buf_address, len, 0, - NULL); -} - -/* - * 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) -{ - return cxl_h_control_function(unit_address, - H_CONTROL_CA_FUNCTION_GET_CONFIG, - cr_num, offset, buf_address, len, - NULL); -} - -/* - * 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) -{ - return cxl_h_control_function(unit_address, - H_CONTROL_CA_FUNCTION_TERMINATE_PROCESS, - process_token, 0, 0, 0, - NULL); -} - -/* - * 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) -{ - return cxl_h_control_function(unit_address, - H_CONTROL_CA_FUNCTION_COLLECT_VPD, - record, list_address, num, 0, - 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) -{ - return cxl_h_control_function(unit_address, - H_CONTROL_CA_FUNCTION_GET_FUNCTION_ERR_INT, - 0, 0, 0, 0, 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) -{ - return cxl_h_control_function(unit_address, - H_CONTROL_CA_FUNCTION_ACK_FUNCTION_ERR_INT, - value, 0, 0, 0, - NULL); -} - -/* - * 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) -{ - return cxl_h_control_function(unit_address, - H_CONTROL_CA_FUNCTION_GET_ERROR_LOG, - 0, 0, 0, 0, - NULL); -} - -/* - * 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) -{ - long rc; - - BUG_ON(sizeof(*info) != sizeof(unsigned long[PLPAR_HCALL9_BUFSIZE])); - - rc = plpar_hcall9(H_COLLECT_CA_INT_INFO, (unsigned long *) info, - unit_address, process_token); - _PRINT_MSG(rc, "cxl_h_collect_int_info(%#.16llx, 0x%llx): %li\n", - unit_address, process_token, rc); - trace_cxl_hcall_collect_int_info(unit_address, process_token, rc); - - switch (rc) { - case H_SUCCESS: /* The interrupt info is returned in return registers. */ - pr_devel("dsisr:%#llx, dar:%#llx, dsr:%#llx, pid_tid:%#llx, afu_err:%#llx, errstat:%#llx\n", - info->dsisr, info->dar, info->dsr, info->reserved, - info->afu_err, info->errstat); - return 0; - case H_PARAMETER: /* An incorrect parameter was supplied. */ - return -EINVAL; - case H_AUTHORITY: /* The partition does not have authority to perform this hcall. */ - case H_HARDWARE: /* A hardware event prevented the collection of the interrupt info.*/ - case H_STATE: /* The coherent platform function is not in a valid state to collect interrupt info. */ - return -EBUSY; - default: - WARN(1, "Unexpected return code: %lx", rc); - return -EINVAL; - } -} - -/* - * 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) -{ - unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; - long rc; - - memset(retbuf, 0, sizeof(retbuf)); - - rc = plpar_hcall(H_CONTROL_CA_FAULTS, retbuf, unit_address, - H_CONTROL_CA_FAULTS_RESPOND_PSL, process_token, - control_mask, reset_mask); - _PRINT_MSG(rc, "cxl_h_control_faults(%#.16llx, 0x%llx, %#llx, %#llx): %li (%#lx)\n", - unit_address, process_token, control_mask, reset_mask, - rc, retbuf[0]); - trace_cxl_hcall_control_faults(unit_address, process_token, - control_mask, reset_mask, retbuf[0], rc); - - switch (rc) { - case H_SUCCESS: /* Faults were successfully controlled for the function. */ - return 0; - case H_PARAMETER: /* An incorrect parameter was supplied. */ - return -EINVAL; - case H_HARDWARE: /* A hardware event prevented the control of faults. */ - case H_STATE: /* The function was in an invalid state. */ - case H_AUTHORITY: /* The partition does not have authority to perform this hcall; the coherent platform facilities may need to be licensed. */ - return -EBUSY; - case H_FUNCTION: /* The function is not supported */ - case H_NOT_FOUND: /* The operation supplied was not valid */ - return -EINVAL; - default: - WARN(1, "Unexpected return code: %lx", rc); - return -EINVAL; - } -} - -/* - * cxl_h_control_facility - This H_CONTROL_CA_FACILITY hypervisor call - * allows the partition to manipulate or query - * certain coherent platform facility behaviors. - */ -static long cxl_h_control_facility(u64 unit_address, u64 op, - u64 p1, u64 p2, u64 p3, u64 p4, u64 *out) -{ - unsigned long retbuf[PLPAR_HCALL9_BUFSIZE]; - long rc; - - CXL_H9_WAIT_UNTIL_DONE(rc, retbuf, H_CONTROL_CA_FACILITY, unit_address, op, p1, p2, p3, p4); - _PRINT_MSG(rc, "cxl_h_control_facility(%#.16llx, %s(%#llx, %#llx, %#llx, %#llx, R4: %#lx)): %li\n", - unit_address, OP_STR_CONTROL_ADAPTER(op), p1, p2, p3, p4, retbuf[0], rc); - trace_cxl_hcall_control_facility(unit_address, OP_STR_CONTROL_ADAPTER(op), p1, p2, p3, p4, retbuf[0], rc); - - switch (rc) { - case H_SUCCESS: /* The operation is completed for the coherent platform facility */ - if (op == H_CONTROL_CA_FACILITY_COLLECT_VPD) - *out = retbuf[0]; - return 0; - case H_PARAMETER: /* An incorrect parameter was supplied. */ - case H_FUNCTION: /* The function is not supported. */ - case H_NOT_FOUND: /* The operation supplied was not valid */ - case H_NOT_AVAILABLE: /* The operation cannot be performed because the AFU has not been downloaded */ - case H_SG_LIST: /* An block list entry was invalid */ - return -EINVAL; - case H_AUTHORITY: /* The partition does not have authority to perform this hcall */ - case H_RESOURCE: /* The function has page table mappings for MMIO */ - case H_HARDWARE: /* A hardware event prevented the attach operation */ - case H_STATE: /* The coherent platform facility is not in a valid state */ - case H_BUSY: - return -EBUSY; - default: - WARN(1, "Unexpected return code: %lx", rc); - return -EINVAL; - } -} - -/* - * cxl_h_reset_adapter - Perform a reset to the coherent platform facility. - */ -long cxl_h_reset_adapter(u64 unit_address) -{ - return cxl_h_control_facility(unit_address, - H_CONTROL_CA_FACILITY_RESET, - 0, 0, 0, 0, - NULL); -} - -/* - * 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) -{ - return cxl_h_control_facility(unit_address, - H_CONTROL_CA_FACILITY_COLLECT_VPD, - list_address, num, 0, 0, - out); -} - -/* - * cxl_h_download_facility - This H_DOWNLOAD_CA_FACILITY - * hypervisor call provide platform support for - * downloading a base adapter image to the coherent - * platform facility, and for validating the entire - * image after the download. - * Parameters - * op: operation to perform to the coherent platform function - * Download: operation = 1, the base image in the coherent platform - * facility is first erased, and then - * programmed using the image supplied - * in the scatter/gather list. - * Validate: operation = 2, the base image in the coherent platform - * facility is compared with the image - * supplied in the scatter/gather list. - * list_address: 4K naturally aligned real buffer containing - * scatter/gather list entries. - * num: number of block list entries in the scatter/gather list. - */ -static long cxl_h_download_facility(u64 unit_address, u64 op, - u64 list_address, u64 num, - u64 *out) -{ - unsigned long retbuf[PLPAR_HCALL_BUFSIZE]; - unsigned int delay, total_delay = 0; - u64 token = 0; - long rc; - - if (*out != 0) - token = *out; - - memset(retbuf, 0, sizeof(retbuf)); - while (1) { - rc = plpar_hcall(H_DOWNLOAD_CA_FACILITY, retbuf, - unit_address, op, list_address, num, - token); - token = retbuf[0]; - if (rc != H_BUSY && !H_IS_LONG_BUSY(rc)) - break; - - if (rc != H_BUSY) { - delay = get_longbusy_msecs(rc); - total_delay += delay; - if (total_delay > CXL_HCALL_TIMEOUT_DOWNLOAD) { - WARN(1, "Warning: Giving up waiting for CXL hcall " - "%#x after %u msec\n", - H_DOWNLOAD_CA_FACILITY, total_delay); - rc = H_BUSY; - break; - } - msleep(delay); - } - } - _PRINT_MSG(rc, "cxl_h_download_facility(%#.16llx, %s(%#llx, %#llx), %#lx): %li\n", - unit_address, OP_STR_DOWNLOAD_ADAPTER(op), list_address, num, retbuf[0], rc); - trace_cxl_hcall_download_facility(unit_address, OP_STR_DOWNLOAD_ADAPTER(op), list_address, num, retbuf[0], rc); - - switch (rc) { - case H_SUCCESS: /* The operation is completed for the coherent platform facility */ - return 0; - case H_PARAMETER: /* An incorrect parameter was supplied */ - case H_FUNCTION: /* The function is not supported. */ - case H_SG_LIST: /* An block list entry was invalid */ - case H_BAD_DATA: /* Image verification failed */ - return -EINVAL; - case H_AUTHORITY: /* The partition does not have authority to perform this hcall */ - case H_RESOURCE: /* The function has page table mappings for MMIO */ - case H_HARDWARE: /* A hardware event prevented the attach operation */ - case H_STATE: /* The coherent platform facility is not in a valid state */ - case H_BUSY: - return -EBUSY; - case H_CONTINUE: - *out = retbuf[0]; - return 1; /* More data is needed for the complete image */ - default: - WARN(1, "Unexpected return code: %lx", rc); - return -EINVAL; - } -} - -/* - * 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) -{ - return cxl_h_download_facility(unit_address, - H_DOWNLOAD_CA_FACILITY_DOWNLOAD, - list_address, num, 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) -{ - return cxl_h_download_facility(unit_address, - H_DOWNLOAD_CA_FACILITY_VALIDATE, - list_address, num, out); -} |