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Diffstat (limited to 'include/soc/tegra/bpmp-abi.h')
| -rw-r--r-- | include/soc/tegra/bpmp-abi.h | 3061 |
1 files changed, 3061 insertions, 0 deletions
diff --git a/include/soc/tegra/bpmp-abi.h b/include/soc/tegra/bpmp-abi.h new file mode 100644 index 000000000..bff99f238 --- /dev/null +++ b/include/soc/tegra/bpmp-abi.h @@ -0,0 +1,3061 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2014-2020, NVIDIA CORPORATION. All rights reserved. + */ + +#ifndef ABI_BPMP_ABI_H +#define ABI_BPMP_ABI_H + +#if defined(LK) || defined(BPMP_ABI_HAVE_STDC) +#include <stddef.h> +#include <stdint.h> +#endif + +#ifndef BPMP_ABI_PACKED +#ifdef __ABI_PACKED +#define BPMP_ABI_PACKED __ABI_PACKED +#else +#define BPMP_ABI_PACKED __attribute__((packed)) +#endif +#endif + +#ifdef NO_GCC_EXTENSIONS +#define BPMP_ABI_EMPTY char empty; +#define BPMP_ABI_EMPTY_ARRAY 1 +#else +#define BPMP_ABI_EMPTY +#define BPMP_ABI_EMPTY_ARRAY 0 +#endif + +#ifndef BPMP_UNION_ANON +#ifdef __UNION_ANON +#define BPMP_UNION_ANON __UNION_ANON +#else +#define BPMP_UNION_ANON +#endif +#endif + +/** + * @file + */ + +/** + * @defgroup MRQ MRQ Messages + * @brief Messages sent to/from BPMP via IPC + * @{ + * @defgroup MRQ_Format Message Format + * @defgroup MRQ_Codes Message Request (MRQ) Codes + * @defgroup MRQ_Payloads Message Payloads + * @defgroup Error_Codes Error Codes + * @} + */ + +/** + * @addtogroup MRQ_Format + * @{ + * The CPU requests the BPMP to perform a particular service by + * sending it an IVC frame containing a single MRQ message. An MRQ + * message consists of a @ref mrq_request followed by a payload whose + * format depends on mrq_request::mrq. + * + * The BPMP processes the data and replies with an IVC frame (on the + * same IVC channel) containing and MRQ response. An MRQ response + * consists of a @ref mrq_response followed by a payload whose format + * depends on the associated mrq_request::mrq. + * + * A well-defined subset of the MRQ messages that the CPU sends to the + * BPMP can lead to BPMP eventually sending an MRQ message to the + * CPU. For example, when the CPU uses an #MRQ_THERMAL message to set + * a thermal trip point, the BPMP may eventually send a single + * #MRQ_THERMAL message of its own to the CPU indicating that the trip + * point has been crossed. + * @} + */ + +/** + * @ingroup MRQ_Format + * @brief Header for an MRQ message + * + * Provides the MRQ number for the MRQ message: #mrq. The remainder of + * the MRQ message is a payload (immediately following the + * mrq_request) whose format depends on mrq. + */ +struct mrq_request { + /** @brief MRQ number of the request */ + uint32_t mrq; + + /** + * @brief Flags providing follow up directions to the receiver + * + * | Bit | Description | + * |-----|--------------------------------------------| + * | 1 | ring the sender's doorbell when responding | + * | 0 | should be 1 | + */ + uint32_t flags; +} BPMP_ABI_PACKED; + +/** + * @ingroup MRQ_Format + * @brief Header for an MRQ response + * + * Provides an error code for the associated MRQ message. The + * remainder of the MRQ response is a payload (immediately following + * the mrq_response) whose format depends on the associated + * mrq_request::mrq + */ +struct mrq_response { + /** @brief Error code for the MRQ request itself */ + int32_t err; + /** @brief Reserved for future use */ + uint32_t flags; +} BPMP_ABI_PACKED; + +/** + * @ingroup MRQ_Format + * Minimum needed size for an IPC message buffer + */ +#define MSG_MIN_SZ 128U +/** + * @ingroup MRQ_Format + * Minimum size guaranteed for data in an IPC message buffer + */ +#define MSG_DATA_MIN_SZ 120U + +/** + * @ingroup MRQ_Codes + * @name Legal MRQ codes + * These are the legal values for mrq_request::mrq + * @{ + */ + +#define MRQ_PING 0U +#define MRQ_QUERY_TAG 1U +#define MRQ_MODULE_LOAD 4U +#define MRQ_MODULE_UNLOAD 5U +#define MRQ_TRACE_MODIFY 7U +#define MRQ_WRITE_TRACE 8U +#define MRQ_THREADED_PING 9U +#define MRQ_MODULE_MAIL 11U +#define MRQ_DEBUGFS 19U +#define MRQ_RESET 20U +#define MRQ_I2C 21U +#define MRQ_CLK 22U +#define MRQ_QUERY_ABI 23U +#define MRQ_PG_READ_STATE 25U +#define MRQ_PG_UPDATE_STATE 26U +#define MRQ_THERMAL 27U +#define MRQ_CPU_VHINT 28U +#define MRQ_ABI_RATCHET 29U +#define MRQ_EMC_DVFS_LATENCY 31U +#define MRQ_TRACE_ITER 64U +#define MRQ_RINGBUF_CONSOLE 65U +#define MRQ_PG 66U +#define MRQ_CPU_NDIV_LIMITS 67U +#define MRQ_STRAP 68U +#define MRQ_UPHY 69U +#define MRQ_CPU_AUTO_CC3 70U +#define MRQ_QUERY_FW_TAG 71U +#define MRQ_FMON 72U +#define MRQ_EC 73U +#define MRQ_DEBUG 75U + +/** @} */ + +/** + * @ingroup MRQ_Codes + * @brief Maximum MRQ code to be sent by CPU software to + * BPMP. Subject to change in future + */ +#define MAX_CPU_MRQ_ID 75U + +/** + * @addtogroup MRQ_Payloads + * @{ + * @defgroup Ping Ping + * @defgroup Query_Tag Query Tag + * @defgroup Module Loadable Modules + * @defgroup Trace Trace + * @defgroup Debugfs Debug File System + * @defgroup Reset Reset + * @defgroup I2C I2C + * @defgroup Clocks Clocks + * @defgroup ABI_info ABI Info + * @defgroup Powergating Power Gating + * @defgroup Thermal Thermal + * @defgroup Vhint CPU Voltage hint + * @defgroup EMC EMC + * @defgroup CPU NDIV Limits + * @defgroup RingbufConsole Ring Buffer Console + * @defgroup Strap Straps + * @defgroup UPHY UPHY + * @defgroup CC3 Auto-CC3 + * @defgroup FMON FMON + * @defgroup EC EC + * @defgroup Fbvolt_status Fuse Burn Voltage Status + * @} + */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_PING + * @brief A simple ping + * + * * Platforms: All + * * Initiators: Any + * * Targets: Any + * * Request Payload: @ref mrq_ping_request + * * Response Payload: @ref mrq_ping_response + * + * @ingroup MRQ_Codes + * @def MRQ_THREADED_PING + * @brief A deeper ping + * + * * Platforms: All + * * Initiators: Any + * * Targets: BPMP + * * Request Payload: @ref mrq_ping_request + * * Response Payload: @ref mrq_ping_response + * + * Behavior is equivalent to a simple #MRQ_PING except that BPMP + * responds from a thread context (providing a slightly more robust + * sign of life). + * + */ + +/** + * @ingroup Ping + * @brief Request with #MRQ_PING + * + * Used by the sender of an #MRQ_PING message to request a pong from + * recipient. The response from the recipient is computed based on + * #challenge. + */ +struct mrq_ping_request { +/** @brief Arbitrarily chosen value */ + uint32_t challenge; +} BPMP_ABI_PACKED; + +/** + * @ingroup Ping + * @brief Response to #MRQ_PING + * + * Sent in response to an #MRQ_PING message. #reply should be the + * mrq_ping_request challenge left shifted by 1 with the carry-bit + * dropped. + * + */ +struct mrq_ping_response { + /** @brief Response to the MRQ_PING challege */ + uint32_t reply; +} BPMP_ABI_PACKED; + +/** + * @ingroup MRQ_Codes + * @def MRQ_QUERY_TAG + * @brief Query BPMP firmware's tag (i.e. unique identifer) + * + * @deprecated Use #MRQ_QUERY_FW_TAG instead. + * + * * Platforms: All + * * Initiators: CCPLEX + * * Targets: BPMP + * * Request Payload: @ref mrq_query_tag_request + * * Response Payload: N/A + * + */ + +/** + * @ingroup Query_Tag + * @brief Request with #MRQ_QUERY_TAG + * + * @deprecated This structure will be removed in future version. + * Use MRQ_QUERY_FW_TAG instead. + */ +struct mrq_query_tag_request { + /** @brief Base address to store the firmware tag */ + uint32_t addr; +} BPMP_ABI_PACKED; + + +/** + * @ingroup MRQ_Codes + * @def MRQ_QUERY_FW_TAG + * @brief Query BPMP firmware's tag (i.e. unique identifier) + * + * * Platforms: All + * * Initiators: Any + * * Targets: BPMP + * * Request Payload: N/A + * * Response Payload: @ref mrq_query_fw_tag_response + * + */ + +/** + * @ingroup Query_Tag + * @brief Response to #MRQ_QUERY_FW_TAG + * + * Sent in response to #MRQ_QUERY_FW_TAG message. #tag contains the unique + * identifier for the version of firmware issuing the reply. + * + */ +struct mrq_query_fw_tag_response { + /** @brief Array to store tag information */ + uint8_t tag[32]; +} BPMP_ABI_PACKED; + +/** + * @ingroup MRQ_Codes + * @def MRQ_MODULE_LOAD + * @brief Dynamically load a BPMP code module + * + * * Platforms: T210, T210B01, T186 + * @cond (bpmp_t210 || bpmp_t210b01 || bpmp_t186) + * * Initiators: CCPLEX + * * Targets: BPMP + * * Request Payload: @ref mrq_module_load_request + * * Response Payload: @ref mrq_module_load_response + * + * @note This MRQ is disabled on production systems + * + */ + +/** + * @ingroup Module + * @brief Request with #MRQ_MODULE_LOAD + * + * Used by #MRQ_MODULE_LOAD calls to ask the recipient to dynamically + * load the code located at #phys_addr and having size #size + * bytes. #phys_addr is treated as a void pointer. + * + * The recipient copies the code from #phys_addr to locally allocated + * memory prior to responding to this message. + * + * @todo document the module header format + * + * The sender is responsible for ensuring that the code is mapped in + * the recipient's address map. + * + */ +struct mrq_module_load_request { + /** @brief Base address of the code to load */ + uint32_t phys_addr; + /** @brief Size in bytes of code to load */ + uint32_t size; +} BPMP_ABI_PACKED; + +/** + * @ingroup Module + * @brief Response to #MRQ_MODULE_LOAD + * + * @todo document mrq_response::err + */ +struct mrq_module_load_response { + /** @brief Handle to the loaded module */ + uint32_t base; +} BPMP_ABI_PACKED; +/** @endcond*/ + +/** + * @ingroup MRQ_Codes + * @def MRQ_MODULE_UNLOAD + * @brief Unload a previously loaded code module + * + * * Platforms: T210, T210B01, T186 + * @cond (bpmp_t210 || bpmp_t210b01 || bpmp_t186) + * * Initiators: CCPLEX + * * Targets: BPMP + * * Request Payload: @ref mrq_module_unload_request + * * Response Payload: N/A + * + * @note This MRQ is disabled on production systems + */ + +/** + * @ingroup Module + * @brief Request with #MRQ_MODULE_UNLOAD + * + * Used by #MRQ_MODULE_UNLOAD calls to request that a previously loaded + * module be unloaded. + */ +struct mrq_module_unload_request { + /** @brief Handle of the module to unload */ + uint32_t base; +} BPMP_ABI_PACKED; +/** @endcond*/ + +/** + * @ingroup MRQ_Codes + * @def MRQ_TRACE_MODIFY + * @brief Modify the set of enabled trace events + * + * @deprecated + * + * * Platforms: All + * * Initiators: CCPLEX + * * Targets: BPMP + * * Request Payload: @ref mrq_trace_modify_request + * * Response Payload: @ref mrq_trace_modify_response + * + * @note This MRQ is disabled on production systems + */ + +/** + * @ingroup Trace + * @brief Request with #MRQ_TRACE_MODIFY + * + * Used by %MRQ_TRACE_MODIFY calls to enable or disable specify trace + * events. #set takes precedence for any bit set in both #set and + * #clr. + */ +struct mrq_trace_modify_request { + /** @brief Bit mask of trace events to disable */ + uint32_t clr; + /** @brief Bit mask of trace events to enable */ + uint32_t set; +} BPMP_ABI_PACKED; + +/** + * @ingroup Trace + * @brief Response to #MRQ_TRACE_MODIFY + * + * Sent in repsonse to an #MRQ_TRACE_MODIFY message. #mask reflects the + * state of which events are enabled after the recipient acted on the + * message. + * + */ +struct mrq_trace_modify_response { + /** @brief Bit mask of trace event enable states */ + uint32_t mask; +} BPMP_ABI_PACKED; + +/** + * @ingroup MRQ_Codes + * @def MRQ_WRITE_TRACE + * @brief Write trace data to a buffer + * + * @deprecated + * + * * Platforms: All + * * Initiators: CCPLEX + * * Targets: BPMP + * * Request Payload: @ref mrq_write_trace_request + * * Response Payload: @ref mrq_write_trace_response + * + * mrq_response::err depends on the @ref mrq_write_trace_request field + * values. err is -#BPMP_EINVAL if size is zero or area is NULL or + * area is in an illegal range. A positive value for err indicates the + * number of bytes written to area. + * + * @note This MRQ is disabled on production systems + */ + +/** + * @ingroup Trace + * @brief Request with #MRQ_WRITE_TRACE + * + * Used by MRQ_WRITE_TRACE calls to ask the recipient to copy trace + * data from the recipient's local buffer to the output buffer. #area + * is treated as a byte-aligned pointer in the recipient's address + * space. + * + * The sender is responsible for ensuring that the output + * buffer is mapped in the recipient's address map. The recipient is + * responsible for protecting its own code and data from accidental + * overwrites. + */ +struct mrq_write_trace_request { + /** @brief Base address of output buffer */ + uint32_t area; + /** @brief Size in bytes of the output buffer */ + uint32_t size; +} BPMP_ABI_PACKED; + +/** + * @ingroup Trace + * @brief Response to #MRQ_WRITE_TRACE + * + * Once this response is sent, the respondent will not access the + * output buffer further. + */ +struct mrq_write_trace_response { + /** + * @brief Flag whether more data remains in local buffer + * + * Value is 1 if the entire local trace buffer has been + * drained to the outputbuffer. Value is 0 otherwise. + */ + uint32_t eof; +} BPMP_ABI_PACKED; + +/** @private */ +struct mrq_threaded_ping_request { + uint32_t challenge; +} BPMP_ABI_PACKED; + +/** @private */ +struct mrq_threaded_ping_response { + uint32_t reply; +} BPMP_ABI_PACKED; + +/** + * @ingroup MRQ_Codes + * @def MRQ_MODULE_MAIL + * @brief Send a message to a loadable module + * + * * Platforms: T210, T210B01, T186 + * @cond (bpmp_t210 || bpmp_t210b01 || bpmp_t186) + * * Initiators: Any + * * Targets: BPMP + * * Request Payload: @ref mrq_module_mail_request + * * Response Payload: @ref mrq_module_mail_response + * + * @note This MRQ is disabled on production systems + */ + +/** + * @ingroup Module + * @brief Request with #MRQ_MODULE_MAIL + */ +struct mrq_module_mail_request { + /** @brief Handle to the previously loaded module */ + uint32_t base; + /** @brief Module-specific mail payload + * + * The length of data[ ] is unknown to the BPMP core firmware + * but it is limited to the size of an IPC message. + */ + uint8_t data[BPMP_ABI_EMPTY_ARRAY]; +} BPMP_ABI_PACKED; + +/** + * @ingroup Module + * @brief Response to #MRQ_MODULE_MAIL + */ +struct mrq_module_mail_response { + /** @brief Module-specific mail payload + * + * The length of data[ ] is unknown to the BPMP core firmware + * but it is limited to the size of an IPC message. + */ + uint8_t data[BPMP_ABI_EMPTY_ARRAY]; +} BPMP_ABI_PACKED; +/** @endcond */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_DEBUGFS + * @brief Interact with BPMP's debugfs file nodes + * + * @deprecated use MRQ_DEBUG instead. + * + * * Platforms: T186, T194 + * * Initiators: Any + * * Targets: BPMP + * * Request Payload: @ref mrq_debugfs_request + * * Response Payload: @ref mrq_debugfs_response + */ + +/** + * @addtogroup Debugfs + * @{ + * + * The BPMP firmware implements a pseudo-filesystem called + * debugfs. Any driver within the firmware may register with debugfs + * to expose an arbitrary set of "files" in the filesystem. When + * software on the CPU writes to a debugfs file, debugfs passes the + * written data to a callback provided by the driver. When software on + * the CPU reads a debugfs file, debugfs queries the driver for the + * data to return to the CPU. The intention of the debugfs filesystem + * is to provide information useful for debugging the system at + * runtime. + * + * @note The files exposed via debugfs are not part of the + * BPMP firmware's ABI. debugfs files may be added or removed in any + * given version of the firmware. Typically the semantics of a debugfs + * file are consistent from version to version but even that is not + * guaranteed. + * + * @} + */ + +/** @ingroup Debugfs */ +enum mrq_debugfs_commands { + /** @brief Perform read */ + CMD_DEBUGFS_READ = 1, + /** @brief Perform write */ + CMD_DEBUGFS_WRITE = 2, + /** @brief Perform dumping directory */ + CMD_DEBUGFS_DUMPDIR = 3, + /** @brief Not a command */ + CMD_DEBUGFS_MAX +}; + +/** + * @ingroup Debugfs + * @brief Parameters for CMD_DEBUGFS_READ/WRITE command + */ +struct cmd_debugfs_fileop_request { + /** @brief Physical address pointing at filename */ + uint32_t fnameaddr; + /** @brief Length in bytes of filename buffer */ + uint32_t fnamelen; + /** @brief Physical address pointing to data buffer */ + uint32_t dataaddr; + /** @brief Length in bytes of data buffer */ + uint32_t datalen; +} BPMP_ABI_PACKED; + +/** + * @ingroup Debugfs + * @brief Parameters for CMD_DEBUGFS_READ/WRITE command + */ +struct cmd_debugfs_dumpdir_request { + /** @brief Physical address pointing to data buffer */ + uint32_t dataaddr; + /** @brief Length in bytes of data buffer */ + uint32_t datalen; +} BPMP_ABI_PACKED; + +/** + * @ingroup Debugfs + * @brief Response data for CMD_DEBUGFS_READ/WRITE command + */ +struct cmd_debugfs_fileop_response { + /** @brief Always 0 */ + uint32_t reserved; + /** @brief Number of bytes read from or written to data buffer */ + uint32_t nbytes; +} BPMP_ABI_PACKED; + +/** + * @ingroup Debugfs + * @brief Response data for CMD_DEBUGFS_DUMPDIR command + */ +struct cmd_debugfs_dumpdir_response { + /** @brief Always 0 */ + uint32_t reserved; + /** @brief Number of bytes read from or written to data buffer */ + uint32_t nbytes; +} BPMP_ABI_PACKED; + +/** + * @ingroup Debugfs + * @brief Request with #MRQ_DEBUGFS. + * + * The sender of an MRQ_DEBUGFS message uses #cmd to specify a debugfs + * command to execute. Legal commands are the values of @ref + * mrq_debugfs_commands. Each command requires a specific additional + * payload of data. + * + * |command |payload| + * |-------------------|-------| + * |CMD_DEBUGFS_READ |fop | + * |CMD_DEBUGFS_WRITE |fop | + * |CMD_DEBUGFS_DUMPDIR|dumpdir| + */ +struct mrq_debugfs_request { + /** @brief Sub-command (@ref mrq_debugfs_commands) */ + uint32_t cmd; + union { + struct cmd_debugfs_fileop_request fop; + struct cmd_debugfs_dumpdir_request dumpdir; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** + * @ingroup Debugfs + */ +struct mrq_debugfs_response { + /** @brief Always 0 */ + int32_t reserved; + union { + /** @brief Response data for CMD_DEBUGFS_READ OR + * CMD_DEBUGFS_WRITE command + */ + struct cmd_debugfs_fileop_response fop; + /** @brief Response data for CMD_DEBUGFS_DUMPDIR command */ + struct cmd_debugfs_dumpdir_response dumpdir; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** + * @addtogroup Debugfs + * @{ + */ +#define DEBUGFS_S_ISDIR (1 << 9) +#define DEBUGFS_S_IRUSR (1 << 8) +#define DEBUGFS_S_IWUSR (1 << 7) +/** @} */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_DEBUG + * @brief Interact with BPMP's debugfs file nodes. Use message payload + * for exchanging data. This is functionally equivalent to + * @ref MRQ_DEBUGFS. But the way in which data is exchanged is different. + * When software running on CPU tries to read a debugfs file, + * the file path and read data will be stored in message payload. + * Since the message payload size is limited, a debugfs file + * transaction might require multiple frames of data exchanged + * between BPMP and CPU until the transaction completes. + * + * * Platforms: T194 + * * Initiators: Any + * * Targets: BPMP + * * Request Payload: @ref mrq_debug_request + * * Response Payload: @ref mrq_debug_response + */ + +/** @ingroup Debugfs */ +enum mrq_debug_commands { + /** @brief Open required file for read operation */ + CMD_DEBUG_OPEN_RO = 0, + /** @brief Open required file for write operation */ + CMD_DEBUG_OPEN_WO = 1, + /** @brief Perform read */ + CMD_DEBUG_READ = 2, + /** @brief Perform write */ + CMD_DEBUG_WRITE = 3, + /** @brief Close file */ + CMD_DEBUG_CLOSE = 4, + /** @brief Not a command */ + CMD_DEBUG_MAX +}; + +/** + * @ingroup Debugfs + * @brief Maximum number of files that can be open at a given time + */ +#define DEBUG_MAX_OPEN_FILES 1 + +/** + * @ingroup Debugfs + * @brief Maximum size of null-terminated file name string in bytes. + * Value is derived from memory available in message payload while + * using @ref cmd_debug_fopen_request + * Value 4 corresponds to size of @ref mrq_debug_commands + * in @ref mrq_debug_request. + * 120 - 4 dbg_cmd(32bit) = 116 + */ +#define DEBUG_FNAME_MAX_SZ (MSG_DATA_MIN_SZ - 4) + +/** + * @ingroup Debugfs + * @brief Parameters for CMD_DEBUG_OPEN command + */ +struct cmd_debug_fopen_request { + /** @brief File name - Null-terminated string with maximum + * length @ref DEBUG_FNAME_MAX_SZ + */ + char name[DEBUG_FNAME_MAX_SZ]; +} BPMP_ABI_PACKED; + +/** + * @ingroup Debugfs + * @brief Response data for CMD_DEBUG_OPEN_RO/WO command + */ +struct cmd_debug_fopen_response { + /** @brief Identifier for file access */ + uint32_t fd; + /** @brief Data length. File data size for READ command. + * Maximum allowed length for WRITE command + */ + uint32_t datalen; +} BPMP_ABI_PACKED; + +/** + * @ingroup Debugfs + * @brief Parameters for CMD_DEBUG_READ command + */ +struct cmd_debug_fread_request { + /** @brief File access identifier received in response + * to CMD_DEBUG_OPEN_RO request + */ + uint32_t fd; +} BPMP_ABI_PACKED; + +/** + * @ingroup Debugfs + * @brief Maximum size of read data in bytes. + * Value is derived from memory available in message payload while + * using @ref cmd_debug_fread_response. + */ +#define DEBUG_READ_MAX_SZ (MSG_DATA_MIN_SZ - 4) + +/** + * @ingroup Debugfs + * @brief Response data for CMD_DEBUG_READ command + */ +struct cmd_debug_fread_response { + /** @brief Size of data provided in this response in bytes */ + uint32_t readlen; + /** @brief File data from seek position */ + char data[DEBUG_READ_MAX_SZ]; +} BPMP_ABI_PACKED; + +/** + * @ingroup Debugfs + * @brief Maximum size of write data in bytes. + * Value is derived from memory available in message payload while + * using @ref cmd_debug_fwrite_request. + */ +#define DEBUG_WRITE_MAX_SZ (MSG_DATA_MIN_SZ - 12) + +/** + * @ingroup Debugfs + * @brief Parameters for CMD_DEBUG_WRITE command + */ +struct cmd_debug_fwrite_request { + /** @brief File access identifier received in response + * to CMD_DEBUG_OPEN_RO request + */ + uint32_t fd; + /** @brief Size of write data in bytes */ + uint32_t datalen; + /** @brief Data to be written */ + char data[DEBUG_WRITE_MAX_SZ]; +} BPMP_ABI_PACKED; + +/** + * @ingroup Debugfs + * @brief Parameters for CMD_DEBUG_CLOSE command + */ +struct cmd_debug_fclose_request { + /** @brief File access identifier received in response + * to CMD_DEBUG_OPEN_RO request + */ + uint32_t fd; +} BPMP_ABI_PACKED; + +/** + * @ingroup Debugfs + * @brief Request with #MRQ_DEBUG. + * + * The sender of an MRQ_DEBUG message uses #cmd to specify a debugfs + * command to execute. Legal commands are the values of @ref + * mrq_debug_commands. Each command requires a specific additional + * payload of data. + * + * |command |payload| + * |-------------------|-------| + * |CMD_DEBUG_OPEN_RO |fop | + * |CMD_DEBUG_OPEN_WO |fop | + * |CMD_DEBUG_READ |frd | + * |CMD_DEBUG_WRITE |fwr | + * |CMD_DEBUG_CLOSE |fcl | + */ +struct mrq_debug_request { + /** @brief Sub-command (@ref mrq_debug_commands) */ + uint32_t cmd; + union { + /** @brief Request payload for CMD_DEBUG_OPEN_RO/WO command */ + struct cmd_debug_fopen_request fop; + /** @brief Request payload for CMD_DEBUG_READ command */ + struct cmd_debug_fread_request frd; + /** @brief Request payload for CMD_DEBUG_WRITE command */ + struct cmd_debug_fwrite_request fwr; + /** @brief Request payload for CMD_DEBUG_CLOSE command */ + struct cmd_debug_fclose_request fcl; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** + * @ingroup Debugfs + */ +struct mrq_debug_response { + union { + /** @brief Response data for CMD_DEBUG_OPEN_RO/WO command */ + struct cmd_debug_fopen_response fop; + /** @brief Response data for CMD_DEBUG_READ command */ + struct cmd_debug_fread_response frd; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** + * @ingroup MRQ_Codes + * @def MRQ_RESET + * @brief Reset an IP block + * + * * Platforms: T186, T194 + * * Initiators: Any + * * Targets: BPMP + * * Request Payload: @ref mrq_reset_request + * * Response Payload: @ref mrq_reset_response + * + * @addtogroup Reset + * @{ + */ + +enum mrq_reset_commands { + /** + * @brief Assert module reset + * + * mrq_response::err is 0 if the operation was successful, or @n + * -#BPMP_EINVAL if mrq_reset_request::reset_id is invalid @n + * -#BPMP_EACCES if mrq master is not an owner of target domain reset @n + * -#BPMP_ENOTSUP if target domain h/w state does not allow reset + */ + CMD_RESET_ASSERT = 1, + /** + * @brief Deassert module reset + * + * mrq_response::err is 0 if the operation was successful, or @n + * -#BPMP_EINVAL if mrq_reset_request::reset_id is invalid @n + * -#BPMP_EACCES if mrq master is not an owner of target domain reset @n + * -#BPMP_ENOTSUP if target domain h/w state does not allow reset + */ + CMD_RESET_DEASSERT = 2, + /** + * @brief Assert and deassert the module reset + * + * mrq_response::err is 0 if the operation was successful, or @n + * -#BPMP_EINVAL if mrq_reset_request::reset_id is invalid @n + * -#BPMP_EACCES if mrq master is not an owner of target domain reset @n + * -#BPMP_ENOTSUP if target domain h/w state does not allow reset + */ + CMD_RESET_MODULE = 3, + /** + * @brief Get the highest reset ID + * + * mrq_response::err is 0 if the operation was successful, or @n + * -#BPMP_ENODEV if no reset domains are supported (number of IDs is 0) + */ + CMD_RESET_GET_MAX_ID = 4, + + /** @brief Not part of ABI and subject to change */ + CMD_RESET_MAX, +}; + +/** + * @brief Request with MRQ_RESET + * + * Used by the sender of an #MRQ_RESET message to request BPMP to + * assert or or deassert a given reset line. + */ +struct mrq_reset_request { + /** @brief Reset action to perform (@ref mrq_reset_commands) */ + uint32_t cmd; + /** @brief Id of the reset to affected */ + uint32_t reset_id; +} BPMP_ABI_PACKED; + +/** + * @brief Response for MRQ_RESET sub-command CMD_RESET_GET_MAX_ID. When + * this sub-command is not supported, firmware will return -BPMP_EBADCMD + * in mrq_response::err. + */ +struct cmd_reset_get_max_id_response { + /** @brief Max reset id */ + uint32_t max_id; +} BPMP_ABI_PACKED; + +/** + * @brief Response with MRQ_RESET + * + * Each sub-command supported by @ref mrq_reset_request may return + * sub-command-specific data. Some do and some do not as indicated + * in the following table + * + * | sub-command | payload | + * |----------------------|------------------| + * | CMD_RESET_ASSERT | - | + * | CMD_RESET_DEASSERT | - | + * | CMD_RESET_MODULE | - | + * | CMD_RESET_GET_MAX_ID | reset_get_max_id | + */ +struct mrq_reset_response { + union { + struct cmd_reset_get_max_id_response reset_get_max_id; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** @} */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_I2C + * @brief Issue an i2c transaction + * + * * Platforms: T186, T194 + * * Initiators: Any + * * Targets: BPMP + * * Request Payload: @ref mrq_i2c_request + * * Response Payload: @ref mrq_i2c_response + * + * @addtogroup I2C + * @{ + */ +#define TEGRA_I2C_IPC_MAX_IN_BUF_SIZE (MSG_DATA_MIN_SZ - 12U) +#define TEGRA_I2C_IPC_MAX_OUT_BUF_SIZE (MSG_DATA_MIN_SZ - 4U) + +#define SERIALI2C_TEN 0x0010U +#define SERIALI2C_RD 0x0001U +#define SERIALI2C_STOP 0x8000U +#define SERIALI2C_NOSTART 0x4000U +#define SERIALI2C_REV_DIR_ADDR 0x2000U +#define SERIALI2C_IGNORE_NAK 0x1000U +#define SERIALI2C_NO_RD_ACK 0x0800U +#define SERIALI2C_RECV_LEN 0x0400U + +enum { + CMD_I2C_XFER = 1 +}; + +/** + * @brief Serializable i2c request + * + * Instances of this structure are packed (little-endian) into + * cmd_i2c_xfer_request::data_buf. Each instance represents a single + * transaction (or a portion of a transaction with repeated starts) on + * an i2c bus. + * + * Because these structures are packed, some instances are likely to + * be misaligned. Additionally because #data is variable length, it is + * not possible to iterate through a serialized list of these + * structures without inspecting #len in each instance. It may be + * easier to serialize or deserialize cmd_i2c_xfer_request::data_buf + * manually rather than using this structure definition. +*/ +struct serial_i2c_request { + /** @brief I2C slave address */ + uint16_t addr; + /** @brief Bitmask of SERIALI2C_ flags */ + uint16_t flags; + /** @brief Length of I2C transaction in bytes */ + uint16_t len; + /** @brief For write transactions only, #len bytes of data */ + uint8_t data[]; +} BPMP_ABI_PACKED; + +/** + * @brief Trigger one or more i2c transactions + */ +struct cmd_i2c_xfer_request { + /** @brief Valid bus number from @ref bpmp_i2c_ids*/ + uint32_t bus_id; + + /** @brief Count of valid bytes in #data_buf*/ + uint32_t data_size; + + /** @brief Serialized packed instances of @ref serial_i2c_request*/ + uint8_t data_buf[TEGRA_I2C_IPC_MAX_IN_BUF_SIZE]; +} BPMP_ABI_PACKED; + +/** + * @brief Container for data read from the i2c bus + * + * Processing an cmd_i2c_xfer_request::data_buf causes BPMP to execute + * zero or more I2C reads. The data read from the bus is serialized + * into #data_buf. + */ +struct cmd_i2c_xfer_response { + /** @brief Count of valid bytes in #data_buf*/ + uint32_t data_size; + /** @brief I2c read data */ + uint8_t data_buf[TEGRA_I2C_IPC_MAX_OUT_BUF_SIZE]; +} BPMP_ABI_PACKED; + +/** + * @brief Request with #MRQ_I2C + */ +struct mrq_i2c_request { + /** @brief Always CMD_I2C_XFER (i.e. 1) */ + uint32_t cmd; + /** @brief Parameters of the transfer request */ + struct cmd_i2c_xfer_request xfer; +} BPMP_ABI_PACKED; + +/** + * @brief Response to #MRQ_I2C + * + * mrq_response:err is + * 0: Success + * -#BPMP_EBADCMD: if mrq_i2c_request::cmd is other than 1 + * -#BPMP_EINVAL: if cmd_i2c_xfer_request does not contain correctly formatted request + * -#BPMP_ENODEV: if cmd_i2c_xfer_request::bus_id is not supported by BPMP + * -#BPMP_EACCES: if i2c transaction is not allowed due to firewall rules + * -#BPMP_ETIMEDOUT: if i2c transaction times out + * -#BPMP_ENXIO: if i2c slave device does not reply with ACK to the transaction + * -#BPMP_EAGAIN: if ARB_LOST condition is detected by the i2c controller + * -#BPMP_EIO: any other i2c controller error code than NO_ACK or ARB_LOST + */ +struct mrq_i2c_response { + struct cmd_i2c_xfer_response xfer; +} BPMP_ABI_PACKED; + +/** @} */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_CLK + * @brief Perform a clock operation + * + * * Platforms: T186, T194 + * * Initiators: Any + * * Targets: BPMP + * * Request Payload: @ref mrq_clk_request + * * Response Payload: @ref mrq_clk_response + * + * @addtogroup Clocks + * @{ + */ +enum { + CMD_CLK_GET_RATE = 1, + CMD_CLK_SET_RATE = 2, + CMD_CLK_ROUND_RATE = 3, + CMD_CLK_GET_PARENT = 4, + CMD_CLK_SET_PARENT = 5, + CMD_CLK_IS_ENABLED = 6, + CMD_CLK_ENABLE = 7, + CMD_CLK_DISABLE = 8, + CMD_CLK_GET_ALL_INFO = 14, + CMD_CLK_GET_MAX_CLK_ID = 15, + CMD_CLK_GET_FMAX_AT_VMIN = 16, + CMD_CLK_MAX, +}; + +#define BPMP_CLK_HAS_MUX (1U << 0U) +#define BPMP_CLK_HAS_SET_RATE (1U << 1U) +#define BPMP_CLK_IS_ROOT (1U << 2U) +#define BPMP_CLK_IS_VAR_ROOT (1U << 3U) + +#define MRQ_CLK_NAME_MAXLEN 40U +#define MRQ_CLK_MAX_PARENTS 16U + +/** @private */ +struct cmd_clk_get_rate_request { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +struct cmd_clk_get_rate_response { + int64_t rate; +} BPMP_ABI_PACKED; + +struct cmd_clk_set_rate_request { + int32_t unused; + int64_t rate; +} BPMP_ABI_PACKED; + +struct cmd_clk_set_rate_response { + int64_t rate; +} BPMP_ABI_PACKED; + +struct cmd_clk_round_rate_request { + int32_t unused; + int64_t rate; +} BPMP_ABI_PACKED; + +struct cmd_clk_round_rate_response { + int64_t rate; +} BPMP_ABI_PACKED; + +/** @private */ +struct cmd_clk_get_parent_request { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +struct cmd_clk_get_parent_response { + uint32_t parent_id; +} BPMP_ABI_PACKED; + +struct cmd_clk_set_parent_request { + uint32_t parent_id; +} BPMP_ABI_PACKED; + +struct cmd_clk_set_parent_response { + uint32_t parent_id; +} BPMP_ABI_PACKED; + +/** @private */ +struct cmd_clk_is_enabled_request { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +/** + * @brief Response data to #MRQ_CLK sub-command CMD_CLK_IS_ENABLED + */ +struct cmd_clk_is_enabled_response { + /** + * @brief The state of the clock that has been succesfully + * requested with CMD_CLK_ENABLE or CMD_CLK_DISABLE by the + * master invoking the command earlier. + * + * The state may not reflect the physical state of the clock + * if there are some other masters requesting it to be + * enabled. + * + * Value 0 is disabled, all other values indicate enabled. + */ + int32_t state; +} BPMP_ABI_PACKED; + +/** @private */ +struct cmd_clk_enable_request { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +/** @private */ +struct cmd_clk_enable_response { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +/** @private */ +struct cmd_clk_disable_request { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +/** @private */ +struct cmd_clk_disable_response { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +/** @private */ +struct cmd_clk_get_all_info_request { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +struct cmd_clk_get_all_info_response { + uint32_t flags; + uint32_t parent; + uint32_t parents[MRQ_CLK_MAX_PARENTS]; + uint8_t num_parents; + uint8_t name[MRQ_CLK_NAME_MAXLEN]; +} BPMP_ABI_PACKED; + +/** @private */ +struct cmd_clk_get_max_clk_id_request { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +struct cmd_clk_get_max_clk_id_response { + uint32_t max_id; +} BPMP_ABI_PACKED; + +/** @private */ +struct cmd_clk_get_fmax_at_vmin_request { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +struct cmd_clk_get_fmax_at_vmin_response { + int64_t rate; +} BPMP_ABI_PACKED; + +/** + * @ingroup Clocks + * @brief Request with #MRQ_CLK + * + * Used by the sender of an #MRQ_CLK message to control clocks. The + * clk_request is split into several sub-commands. Some sub-commands + * require no additional data. Others have a sub-command specific + * payload + * + * |sub-command |payload | + * |----------------------------|-----------------------| + * |CMD_CLK_GET_RATE |- | + * |CMD_CLK_SET_RATE |clk_set_rate | + * |CMD_CLK_ROUND_RATE |clk_round_rate | + * |CMD_CLK_GET_PARENT |- | + * |CMD_CLK_SET_PARENT |clk_set_parent | + * |CMD_CLK_IS_ENABLED |- | + * |CMD_CLK_ENABLE |- | + * |CMD_CLK_DISABLE |- | + * |CMD_CLK_GET_ALL_INFO |- | + * |CMD_CLK_GET_MAX_CLK_ID |- | + * |CMD_CLK_GET_FMAX_AT_VMIN |- + * | + * + */ + +struct mrq_clk_request { + /** @brief Sub-command and clock id concatenated to 32-bit word. + * - bits[31..24] is the sub-cmd. + * - bits[23..0] is the clock id + */ + uint32_t cmd_and_id; + + union { + /** @private */ + struct cmd_clk_get_rate_request clk_get_rate; + struct cmd_clk_set_rate_request clk_set_rate; + struct cmd_clk_round_rate_request clk_round_rate; + /** @private */ + struct cmd_clk_get_parent_request clk_get_parent; + struct cmd_clk_set_parent_request clk_set_parent; + /** @private */ + struct cmd_clk_enable_request clk_enable; + /** @private */ + struct cmd_clk_disable_request clk_disable; + /** @private */ + struct cmd_clk_is_enabled_request clk_is_enabled; + /** @private */ + struct cmd_clk_get_all_info_request clk_get_all_info; + /** @private */ + struct cmd_clk_get_max_clk_id_request clk_get_max_clk_id; + /** @private */ + struct cmd_clk_get_fmax_at_vmin_request clk_get_fmax_at_vmin; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** + * @ingroup Clocks + * @brief Response to MRQ_CLK + * + * Each sub-command supported by @ref mrq_clk_request may return + * sub-command-specific data. Some do and some do not as indicated in + * the following table + * + * |sub-command |payload | + * |----------------------------|------------------------| + * |CMD_CLK_GET_RATE |clk_get_rate | + * |CMD_CLK_SET_RATE |clk_set_rate | + * |CMD_CLK_ROUND_RATE |clk_round_rate | + * |CMD_CLK_GET_PARENT |clk_get_parent | + * |CMD_CLK_SET_PARENT |clk_set_parent | + * |CMD_CLK_IS_ENABLED |clk_is_enabled | + * |CMD_CLK_ENABLE |- | + * |CMD_CLK_DISABLE |- | + * |CMD_CLK_GET_ALL_INFO |clk_get_all_info | + * |CMD_CLK_GET_MAX_CLK_ID |clk_get_max_id | + * |CMD_CLK_GET_FMAX_AT_VMIN |clk_get_fmax_at_vmin | + * + */ + +struct mrq_clk_response { + union { + struct cmd_clk_get_rate_response clk_get_rate; + struct cmd_clk_set_rate_response clk_set_rate; + struct cmd_clk_round_rate_response clk_round_rate; + struct cmd_clk_get_parent_response clk_get_parent; + struct cmd_clk_set_parent_response clk_set_parent; + /** @private */ + struct cmd_clk_enable_response clk_enable; + /** @private */ + struct cmd_clk_disable_response clk_disable; + struct cmd_clk_is_enabled_response clk_is_enabled; + struct cmd_clk_get_all_info_response clk_get_all_info; + struct cmd_clk_get_max_clk_id_response clk_get_max_clk_id; + struct cmd_clk_get_fmax_at_vmin_response clk_get_fmax_at_vmin; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** @} */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_QUERY_ABI + * @brief Check if an MRQ is implemented + * + * * Platforms: All + * * Initiators: Any + * * Targets: Any except DMCE + * * Request Payload: @ref mrq_query_abi_request + * * Response Payload: @ref mrq_query_abi_response + */ + +/** + * @ingroup ABI_info + * @brief Request with MRQ_QUERY_ABI + * + * Used by #MRQ_QUERY_ABI call to check if MRQ code #mrq is supported + * by the recipient. + */ +struct mrq_query_abi_request { + /** @brief MRQ code to query */ + uint32_t mrq; +} BPMP_ABI_PACKED; + +/** + * @ingroup ABI_info + * @brief Response to MRQ_QUERY_ABI + * + * @note mrq_response::err of 0 indicates that the query was + * successful, not that the MRQ itself is supported! + */ +struct mrq_query_abi_response { + /** @brief 0 if queried MRQ is supported. Else, -#BPMP_ENODEV */ + int32_t status; +} BPMP_ABI_PACKED; + +/** + * @ingroup MRQ_Codes + * @def MRQ_PG_READ_STATE + * @brief Read the power-gating state of a partition + * + * * Platforms: T186 + * @cond bpmp_t186 + * * Initiators: Any + * * Targets: BPMP + * * Request Payload: @ref mrq_pg_read_state_request + * * Response Payload: @ref mrq_pg_read_state_response + */ + +/** + * @ingroup Powergating + * @brief Request with #MRQ_PG_READ_STATE + * + * Used by MRQ_PG_READ_STATE call to read the current state of a + * partition. + */ +struct mrq_pg_read_state_request { + /** @brief ID of partition */ + uint32_t partition_id; +} BPMP_ABI_PACKED; + +/** + * @ingroup Powergating + * @brief Response to MRQ_PG_READ_STATE + * @todo define possible errors. + */ +struct mrq_pg_read_state_response { + /** @brief Read as don't care */ + uint32_t sram_state; + /** @brief State of power partition + * * 0 : off + * * 1 : on + */ + uint32_t logic_state; +} BPMP_ABI_PACKED; +/** @endcond*/ +/** @} */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_PG_UPDATE_STATE + * @brief Modify the power-gating state of a partition. In contrast to + * MRQ_PG calls, the operations that change state (on/off) of power + * partition are reference counted. + * + * * Platforms: T186 + * @cond bpmp_t186 + * * Initiators: Any + * * Targets: BPMP + * * Request Payload: @ref mrq_pg_update_state_request + * * Response Payload: N/A + */ + +/** + * @ingroup Powergating + * @brief Request with mrq_pg_update_state_request + * + * Used by #MRQ_PG_UPDATE_STATE call to request BPMP to change the + * state of a power partition #partition_id. + */ +struct mrq_pg_update_state_request { + /** @brief ID of partition */ + uint32_t partition_id; + /** @brief Secondary control of power partition + * @details Ignored by many versions of the BPMP + * firmware. For maximum compatibility, set the value + * according to @ref logic_state + * * 0x1: power ON partition (@ref logic_state == 0x3) + * * 0x3: power OFF partition (@ref logic_state == 0x1) + */ + uint32_t sram_state; + /** @brief Controls state of power partition, legal values are + * * 0x1 : power OFF partition + * * 0x3 : power ON partition + */ + uint32_t logic_state; + /** @brief Change state of clocks of the power partition, legal values + * * 0x0 : do not change clock state + * * 0x1 : disable partition clocks (only applicable when + * @ref logic_state == 0x1) + * * 0x3 : enable partition clocks (only applicable when + * @ref logic_state == 0x3) + */ + uint32_t clock_state; +} BPMP_ABI_PACKED; +/** @endcond*/ + +/** + * @ingroup MRQ_Codes + * @def MRQ_PG + * @brief Control power-gating state of a partition. In contrast to + * MRQ_PG_UPDATE_STATE, operations that change the power partition + * state are NOT reference counted + * + * @note BPMP-FW forcefully turns off some partitions as part of SC7 entry + * because their state cannot be adequately restored on exit. Therefore, + * it is recommended to power off all domains via MRQ_PG prior to SC7 entry. + * See @ref bpmp_pdomain_ids for further detail. + * + * * Platforms: T186, T194 + * * Initiators: Any + * * Targets: BPMP + * * Request Payload: @ref mrq_pg_request + * * Response Payload: @ref mrq_pg_response + * + * @addtogroup Powergating + * @{ + */ +enum mrq_pg_cmd { + /** + * @brief Check whether the BPMP driver supports the specified + * request type + * + * mrq_response::err is 0 if the specified request is + * supported and -#BPMP_ENODEV otherwise. + */ + CMD_PG_QUERY_ABI = 0, + + /** + * @brief Set the current state of specified power domain. The + * possible values for power domains are defined in enum + * pg_states + * + * mrq_response:err is + * 0: Success + * -#BPMP_EINVAL: Invalid request parameters + */ + CMD_PG_SET_STATE = 1, + + /** + * @brief Get the current state of specified power domain. The + * possible values for power domains are defined in enum + * pg_states + * + * mrq_response:err is + * 0: Success + * -#BPMP_EINVAL: Invalid request parameters + */ + CMD_PG_GET_STATE = 2, + + /** + * @brief Get the name string of specified power domain id. + * + * mrq_response:err is + * 0: Success + * -#BPMP_EINVAL: Invalid request parameters + */ + CMD_PG_GET_NAME = 3, + + + /** + * @brief Get the highest power domain id in the system. Not + * all IDs between 0 and max_id are valid IDs. + * + * mrq_response:err is + * 0: Success + * -#BPMP_EINVAL: Invalid request parameters + */ + CMD_PG_GET_MAX_ID = 4, +}; + +#define MRQ_PG_NAME_MAXLEN 40 + +enum pg_states { + /** @brief Power domain is OFF */ + PG_STATE_OFF = 0, + /** @brief Power domain is ON */ + PG_STATE_ON = 1, + /** + * @brief a legacy state where power domain and the clock + * associated to the domain are ON. + * This state is only supported in T186, and the use of it is + * deprecated. + */ + PG_STATE_RUNNING = 2, +}; + +struct cmd_pg_query_abi_request { + /** @ref mrq_pg_cmd */ + uint32_t type; +} BPMP_ABI_PACKED; + +struct cmd_pg_set_state_request { + /** @ref pg_states */ + uint32_t state; +} BPMP_ABI_PACKED; + +/** + * @brief Response data to #MRQ_PG sub command #CMD_PG_GET_STATE + */ +struct cmd_pg_get_state_response { + /** + * @brief The state of the power partition that has been + * succesfuly requested by the master earlier using #MRQ_PG + * command #CMD_PG_SET_STATE. + * + * The state may not reflect the physical state of the power + * partition if there are some other masters requesting it to + * be enabled. + * + * See @ref pg_states for possible values + */ + uint32_t state; +} BPMP_ABI_PACKED; + +struct cmd_pg_get_name_response { + uint8_t name[MRQ_PG_NAME_MAXLEN]; +} BPMP_ABI_PACKED; + +struct cmd_pg_get_max_id_response { + uint32_t max_id; +} BPMP_ABI_PACKED; + +/** + * @brief Request with #MRQ_PG + * + * Used by the sender of an #MRQ_PG message to control power + * partitions. The pg_request is split into several sub-commands. Some + * sub-commands require no additional data. Others have a sub-command + * specific payload + * + * |sub-command |payload | + * |----------------------------|-----------------------| + * |CMD_PG_QUERY_ABI | query_abi | + * |CMD_PG_SET_STATE | set_state | + * |CMD_PG_GET_STATE | - | + * |CMD_PG_GET_NAME | - | + * |CMD_PG_GET_MAX_ID | - | + * + */ +struct mrq_pg_request { + uint32_t cmd; + uint32_t id; + union { + struct cmd_pg_query_abi_request query_abi; + struct cmd_pg_set_state_request set_state; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** + * @brief Response to MRQ_PG + * + * Each sub-command supported by @ref mrq_pg_request may return + * sub-command-specific data. Some do and some do not as indicated in + * the following table + * + * |sub-command |payload | + * |----------------------------|-----------------------| + * |CMD_PG_QUERY_ABI | - | + * |CMD_PG_SET_STATE | - | + * |CMD_PG_GET_STATE | get_state | + * |CMD_PG_GET_NAME | get_name | + * |CMD_PG_GET_MAX_ID | get_max_id | + */ +struct mrq_pg_response { + union { + struct cmd_pg_get_state_response get_state; + struct cmd_pg_get_name_response get_name; + struct cmd_pg_get_max_id_response get_max_id; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** @} */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_THERMAL + * @brief Interact with BPMP thermal framework + * + * * Platforms: T186, T194 + * * Initiators: Any + * * Targets: Any + * * Request Payload: TODO + * * Response Payload: TODO + * + * @addtogroup Thermal + * + * The BPMP firmware includes a thermal framework. Drivers within the + * bpmp firmware register with the framework to provide thermal + * zones. Each thermal zone corresponds to an entity whose temperature + * can be measured. The framework also has a notion of trip points. A + * trip point consists of a thermal zone id, a temperature, and a + * callback routine. The framework invokes the callback when the zone + * hits the indicated temperature. The BPMP firmware uses this thermal + * framework interally to implement various temperature-dependent + * functions. + * + * Software on the CPU can use #MRQ_THERMAL (with payload @ref + * mrq_thermal_host_to_bpmp_request) to interact with the BPMP thermal + * framework. The CPU must It can query the number of supported zones, + * query zone temperatures, and set trip points. + * + * When a trip point set by the CPU gets crossed, BPMP firmware issues + * an IPC to the CPU having mrq_request::mrq = #MRQ_THERMAL and a + * payload of @ref mrq_thermal_bpmp_to_host_request. + * @{ + */ +enum mrq_thermal_host_to_bpmp_cmd { + /** + * @brief Check whether the BPMP driver supports the specified + * request type. + * + * Host needs to supply request parameters. + * + * mrq_response::err is 0 if the specified request is + * supported and -#BPMP_ENODEV otherwise. + */ + CMD_THERMAL_QUERY_ABI = 0, + + /** + * @brief Get the current temperature of the specified zone. + * + * Host needs to supply request parameters. + * + * mrq_response::err is + * * 0: Temperature query succeeded. + * * -#BPMP_EINVAL: Invalid request parameters. + * * -#BPMP_ENOENT: No driver registered for thermal zone.. + * * -#BPMP_EFAULT: Problem reading temperature measurement. + */ + CMD_THERMAL_GET_TEMP = 1, + + /** + * @brief Enable or disable and set the lower and upper + * thermal limits for a thermal trip point. Each zone has + * one trip point. + * + * Host needs to supply request parameters. Once the + * temperature hits a trip point, the BPMP will send a message + * to the CPU having MRQ=MRQ_THERMAL and + * type=CMD_THERMAL_HOST_TRIP_REACHED + * + * mrq_response::err is + * * 0: Trip successfully set. + * * -#BPMP_EINVAL: Invalid request parameters. + * * -#BPMP_ENOENT: No driver registered for thermal zone. + * * -#BPMP_EFAULT: Problem setting trip point. + */ + CMD_THERMAL_SET_TRIP = 2, + + /** + * @brief Get the number of supported thermal zones. + * + * No request parameters required. + * + * mrq_response::err is always 0, indicating success. + */ + CMD_THERMAL_GET_NUM_ZONES = 3, + + /** + * @brief Get the thermtrip of the specified zone. + * + * Host needs to supply request parameters. + * + * mrq_response::err is + * * 0: Valid zone information returned. + * * -#BPMP_EINVAL: Invalid request parameters. + * * -#BPMP_ENOENT: No driver registered for thermal zone. + * * -#BPMP_ERANGE if thermtrip is invalid or disabled. + * * -#BPMP_EFAULT: Problem reading zone information. + */ + CMD_THERMAL_GET_THERMTRIP = 4, + + /** @brief: number of supported host-to-bpmp commands. May + * increase in future + */ + CMD_THERMAL_HOST_TO_BPMP_NUM +}; + +enum mrq_thermal_bpmp_to_host_cmd { + /** + * @brief Indication that the temperature for a zone has + * exceeded the range indicated in the thermal trip point + * for the zone. + * + * BPMP needs to supply request parameters. Host only needs to + * acknowledge. + */ + CMD_THERMAL_HOST_TRIP_REACHED = 100, + + /** @brief: number of supported bpmp-to-host commands. May + * increase in future + */ + CMD_THERMAL_BPMP_TO_HOST_NUM +}; + +/* + * Host->BPMP request data for request type CMD_THERMAL_QUERY_ABI + * + * zone: Request type for which to check existence. + */ +struct cmd_thermal_query_abi_request { + uint32_t type; +} BPMP_ABI_PACKED; + +/* + * Host->BPMP request data for request type CMD_THERMAL_GET_TEMP + * + * zone: Number of thermal zone. + */ +struct cmd_thermal_get_temp_request { + uint32_t zone; +} BPMP_ABI_PACKED; + +/* + * BPMP->Host reply data for request CMD_THERMAL_GET_TEMP + * + * error: 0 if request succeeded. + * -BPMP_EINVAL if request parameters were invalid. + * -BPMP_ENOENT if no driver was registered for the specified thermal zone. + * -BPMP_EFAULT for other thermal zone driver errors. + * temp: Current temperature in millicelsius. + */ +struct cmd_thermal_get_temp_response { + int32_t temp; +} BPMP_ABI_PACKED; + +/* + * Host->BPMP request data for request type CMD_THERMAL_SET_TRIP + * + * zone: Number of thermal zone. + * low: Temperature of lower trip point in millicelsius + * high: Temperature of upper trip point in millicelsius + * enabled: 1 to enable trip point, 0 to disable trip point + */ +struct cmd_thermal_set_trip_request { + uint32_t zone; + int32_t low; + int32_t high; + uint32_t enabled; +} BPMP_ABI_PACKED; + +/* + * BPMP->Host request data for request type CMD_THERMAL_HOST_TRIP_REACHED + * + * zone: Number of thermal zone where trip point was reached. + */ +struct cmd_thermal_host_trip_reached_request { + uint32_t zone; +} BPMP_ABI_PACKED; + +/* + * BPMP->Host reply data for request type CMD_THERMAL_GET_NUM_ZONES + * + * num: Number of supported thermal zones. The thermal zones are indexed + * starting from zero. + */ +struct cmd_thermal_get_num_zones_response { + uint32_t num; +} BPMP_ABI_PACKED; + +/* + * Host->BPMP request data for request type CMD_THERMAL_GET_THERMTRIP + * + * zone: Number of thermal zone. + */ +struct cmd_thermal_get_thermtrip_request { + uint32_t zone; +} BPMP_ABI_PACKED; + +/* + * BPMP->Host reply data for request CMD_THERMAL_GET_THERMTRIP + * + * thermtrip: HW shutdown temperature in millicelsius. + */ +struct cmd_thermal_get_thermtrip_response { + int32_t thermtrip; +} BPMP_ABI_PACKED; + +/* + * Host->BPMP request data. + * + * Reply type is union mrq_thermal_bpmp_to_host_response. + * + * type: Type of request. Values listed in enum mrq_thermal_type. + * data: Request type specific parameters. + */ +struct mrq_thermal_host_to_bpmp_request { + uint32_t type; + union { + struct cmd_thermal_query_abi_request query_abi; + struct cmd_thermal_get_temp_request get_temp; + struct cmd_thermal_set_trip_request set_trip; + struct cmd_thermal_get_thermtrip_request get_thermtrip; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/* + * BPMP->Host request data. + * + * type: Type of request. Values listed in enum mrq_thermal_type. + * data: Request type specific parameters. + */ +struct mrq_thermal_bpmp_to_host_request { + uint32_t type; + union { + struct cmd_thermal_host_trip_reached_request host_trip_reached; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/* + * Data in reply to a Host->BPMP request. + */ +union mrq_thermal_bpmp_to_host_response { + struct cmd_thermal_get_temp_response get_temp; + struct cmd_thermal_get_thermtrip_response get_thermtrip; + struct cmd_thermal_get_num_zones_response get_num_zones; +} BPMP_ABI_PACKED; +/** @} */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_CPU_VHINT + * @brief Query CPU voltage hint data + * + * * Platforms: T186 + * @cond bpmp_t186 + * * Initiators: CCPLEX + * * Targets: BPMP + * * Request Payload: @ref mrq_cpu_vhint_request + * * Response Payload: N/A + * + * @addtogroup Vhint + * @{ + */ + +/** + * @brief Request with #MRQ_CPU_VHINT + * + * Used by #MRQ_CPU_VHINT call by CCPLEX to retrieve voltage hint data + * from BPMP to memory space pointed by #addr. CCPLEX is responsible + * to allocate sizeof(cpu_vhint_data) sized block of memory and + * appropriately map it for BPMP before sending the request. + */ +struct mrq_cpu_vhint_request { + /** @brief IOVA address for the #cpu_vhint_data */ + uint32_t addr; + /** @brief ID of the cluster whose data is requested */ + uint32_t cluster_id; +} BPMP_ABI_PACKED; + +/** + * @brief Description of the CPU v/f relation + * + * Used by #MRQ_CPU_VHINT call to carry data pointed by + * #mrq_cpu_vhint_request::addr + */ +struct cpu_vhint_data { + uint32_t ref_clk_hz; /**< reference frequency in Hz */ + uint16_t pdiv; /**< post divider value */ + uint16_t mdiv; /**< input divider value */ + uint16_t ndiv_max; /**< fMAX expressed with max NDIV value */ + /** table of ndiv values as a function of vINDEX (voltage index) */ + uint16_t ndiv[80]; + /** minimum allowed NDIV value */ + uint16_t ndiv_min; + /** minimum allowed voltage hint value (as in vINDEX) */ + uint16_t vfloor; + /** maximum allowed voltage hint value (as in vINDEX) */ + uint16_t vceil; + /** post-multiplier for vindex value */ + uint16_t vindex_mult; + /** post-divider for vindex value */ + uint16_t vindex_div; + /** reserved for future use */ + uint16_t reserved[328]; +} BPMP_ABI_PACKED; +/** @endcond */ +/** @} */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_ABI_RATCHET + * @brief ABI ratchet value query + * + * * Platforms: T186, T194 + * * Initiators: Any + * * Targets: BPMP + * * Request Payload: @ref mrq_abi_ratchet_request + * * Response Payload: @ref mrq_abi_ratchet_response + * @addtogroup ABI_info + * @{ + */ + +/** + * @brief An ABI compatibility mechanism + * + * BPMP_ABI_RATCHET_VALUE may increase for various reasons in a future + * revision of this header file. + * 1. That future revision deprecates some MRQ + * 2. That future revision introduces a breaking change to an existing + * MRQ or + * 3. A bug is discovered in an existing implementation of the BPMP-FW + * (or possibly one of its clients) which warrants deprecating that + * implementation. + */ +#define BPMP_ABI_RATCHET_VALUE 3 + +/** + * @brief Request with #MRQ_ABI_RATCHET. + * + * #ratchet should be #BPMP_ABI_RATCHET_VALUE from the ABI header + * against which the requester was compiled. + * + * If ratchet is less than BPMP's #BPMP_ABI_RATCHET_VALUE, BPMP may + * reply with mrq_response::err = -#BPMP_ERANGE to indicate that + * BPMP-FW cannot interoperate correctly with the requester. Requester + * should cease further communication with BPMP. + * + * Otherwise, err shall be 0. + */ +struct mrq_abi_ratchet_request { + /** @brief Requester's ratchet value */ + uint16_t ratchet; +}; + +/** + * @brief Response to #MRQ_ABI_RATCHET + * + * #ratchet shall be #BPMP_ABI_RATCHET_VALUE from the ABI header + * against which BPMP firwmare was compiled. + * + * If #ratchet is less than the requester's #BPMP_ABI_RATCHET_VALUE, + * the requster must either interoperate with BPMP according to an ABI + * header version with BPMP_ABI_RATCHET_VALUE = ratchet or cease + * communication with BPMP. + * + * If mrq_response::err is 0 and ratchet is greater than or equal to the + * requester's BPMP_ABI_RATCHET_VALUE, the requester should continue + * normal operation. + */ +struct mrq_abi_ratchet_response { + /** @brief BPMP's ratchet value */ + uint16_t ratchet; +}; +/** @} */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_EMC_DVFS_LATENCY + * @brief Query frequency dependent EMC DVFS latency + * + * * Platforms: T186, T194 + * * Initiators: CCPLEX + * * Targets: BPMP + * * Request Payload: N/A + * * Response Payload: @ref mrq_emc_dvfs_latency_response + * @addtogroup EMC + * @{ + */ + +/** + * @brief Used by @ref mrq_emc_dvfs_latency_response + */ +struct emc_dvfs_latency { + /** @brief EMC DVFS node frequency in kHz */ + uint32_t freq; + /** @brief EMC DVFS latency in nanoseconds */ + uint32_t latency; +} BPMP_ABI_PACKED; + +#define EMC_DVFS_LATENCY_MAX_SIZE 14 +/** + * @brief Response to #MRQ_EMC_DVFS_LATENCY + */ +struct mrq_emc_dvfs_latency_response { + /** @brief The number valid entries in #pairs */ + uint32_t num_pairs; + /** @brief EMC DVFS node <frequency, latency> information */ + struct emc_dvfs_latency pairs[EMC_DVFS_LATENCY_MAX_SIZE]; +} BPMP_ABI_PACKED; + +/** @} */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_CPU_NDIV_LIMITS + * @brief CPU freq. limits in ndiv + * + * * Platforms: T194 onwards + * @cond bpmp_t194 + * * Initiators: CCPLEX + * * Targets: BPMP + * * Request Payload: @ref mrq_cpu_ndiv_limits_request + * * Response Payload: @ref mrq_cpu_ndiv_limits_response + * @addtogroup CPU + * @{ + */ + +/** + * @brief Request for ndiv limits of a cluster + */ +struct mrq_cpu_ndiv_limits_request { + /** @brief Enum cluster_id */ + uint32_t cluster_id; +} BPMP_ABI_PACKED; + +/** + * @brief Response to #MRQ_CPU_NDIV_LIMITS + */ +struct mrq_cpu_ndiv_limits_response { + /** @brief Reference frequency in Hz */ + uint32_t ref_clk_hz; + /** @brief Post divider value */ + uint16_t pdiv; + /** @brief Input divider value */ + uint16_t mdiv; + /** @brief FMAX expressed with max NDIV value */ + uint16_t ndiv_max; + /** @brief Minimum allowed NDIV value */ + uint16_t ndiv_min; +} BPMP_ABI_PACKED; + +/** @} */ +/** @endcond */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_CPU_AUTO_CC3 + * @brief Query CPU cluster auto-CC3 configuration + * + * * Platforms: T194 onwards + * @cond bpmp_t194 + * * Initiators: CCPLEX + * * Targets: BPMP + * * Request Payload: @ref mrq_cpu_auto_cc3_request + * * Response Payload: @ref mrq_cpu_auto_cc3_response + * @addtogroup CC3 + * + * Queries from BPMP auto-CC3 configuration (allowed/not allowed) for a + * specified cluster. CCPLEX s/w uses this information to override its own + * device tree auto-CC3 settings, so that BPMP device tree is a single source of + * auto-CC3 platform configuration. + * + * @{ + */ + +/** + * @brief Request for auto-CC3 configuration of a cluster + */ +struct mrq_cpu_auto_cc3_request { + /** @brief Enum cluster_id (logical cluster id, known to CCPLEX s/w) */ + uint32_t cluster_id; +} BPMP_ABI_PACKED; + +/** + * @brief Response to #MRQ_CPU_AUTO_CC3 + */ +struct mrq_cpu_auto_cc3_response { + /** + * @brief auto-CC3 configuration + * + * - bits[31..10] reserved. + * - bits[9..1] cc3 ndiv + * - bit [0] if "1" auto-CC3 is allowed, if "0" auto-CC3 is not allowed + */ + uint32_t auto_cc3_config; +} BPMP_ABI_PACKED; + +/** @} */ +/** @endcond */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_TRACE_ITER + * @brief Manage the trace iterator + * + * @deprecated + * + * * Platforms: All + * * Initiators: CCPLEX + * * Targets: BPMP + * * Request Payload: N/A + * * Response Payload: @ref mrq_trace_iter_request + * @addtogroup Trace + * @{ + */ +enum { + /** @brief (re)start the tracing now. Ignore older events */ + TRACE_ITER_INIT = 0, + /** @brief Clobber all events in the trace buffer */ + TRACE_ITER_CLEAN = 1 +}; + +/** + * @brief Request with #MRQ_TRACE_ITER + */ +struct mrq_trace_iter_request { + /** @brief TRACE_ITER_INIT or TRACE_ITER_CLEAN */ + uint32_t cmd; +} BPMP_ABI_PACKED; + +/** @} */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_RINGBUF_CONSOLE + * @brief A ring buffer debug console for BPMP + * @addtogroup RingbufConsole + * + * The ring buffer debug console aims to be a substitute for the UART debug + * console. The debug console is implemented with two ring buffers in the + * BPMP-FW, the RX (receive) and TX (transmit) buffers. Characters can be read + * and written to the buffers by the host via the MRQ interface. + * + * @{ + */ + +/** + * @brief Maximum number of bytes transferred in a single write command to the + * BPMP + * + * This is determined by the number of free bytes in the message struct, + * rounded down to a multiple of four. + */ +#define MRQ_RINGBUF_CONSOLE_MAX_WRITE_LEN 112 + +/** + * @brief Maximum number of bytes transferred in a single read command to the + * BPMP + * + * This is determined by the number of free bytes in the message struct, + * rounded down to a multiple of four. + */ +#define MRQ_RINGBUF_CONSOLE_MAX_READ_LEN 116 + +enum mrq_ringbuf_console_host_to_bpmp_cmd { + /** + * @brief Check whether the BPMP driver supports the specified request + * type + * + * mrq_response::err is 0 if the specified request is supported and + * -#BPMP_ENODEV otherwise + */ + CMD_RINGBUF_CONSOLE_QUERY_ABI = 0, + /** + * @brief Perform a read operation on the BPMP TX buffer + * + * mrq_response::err is 0 + */ + CMD_RINGBUF_CONSOLE_READ = 1, + /** + * @brief Perform a write operation on the BPMP RX buffer + * + * mrq_response::err is 0 if the operation was successful and + * -#BPMP_ENODEV otherwise + */ + CMD_RINGBUF_CONSOLE_WRITE = 2, + /** + * @brief Get the length of the buffer and the physical addresses of + * the buffer data and the head and tail counters + * + * mrq_response::err is 0 if the operation was successful and + * -#BPMP_ENODEV otherwise + */ + CMD_RINGBUF_CONSOLE_GET_FIFO = 3, +}; + +/** + * @ingroup RingbufConsole + * @brief Host->BPMP request data for request type + * #CMD_RINGBUF_CONSOLE_QUERY_ABI + */ +struct cmd_ringbuf_console_query_abi_req { + /** @brief Command identifier to be queried */ + uint32_t cmd; +} BPMP_ABI_PACKED; + +/** @private */ +struct cmd_ringbuf_console_query_abi_resp { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +/** + * @ingroup RingbufConsole + * @brief Host->BPMP request data for request type #CMD_RINGBUF_CONSOLE_READ + */ +struct cmd_ringbuf_console_read_req { + /** + * @brief Number of bytes requested to be read from the BPMP TX buffer + */ + uint8_t len; +} BPMP_ABI_PACKED; + +/** + * @ingroup RingbufConsole + * @brief BPMP->Host response data for request type #CMD_RINGBUF_CONSOLE_READ + */ +struct cmd_ringbuf_console_read_resp { + /** @brief The actual data read from the BPMP TX buffer */ + uint8_t data[MRQ_RINGBUF_CONSOLE_MAX_READ_LEN]; + /** @brief Number of bytes in cmd_ringbuf_console_read_resp::data */ + uint8_t len; +} BPMP_ABI_PACKED; + +/** + * @ingroup RingbufConsole + * @brief Host->BPMP request data for request type #CMD_RINGBUF_CONSOLE_WRITE + */ +struct cmd_ringbuf_console_write_req { + /** @brief The actual data to be written to the BPMP RX buffer */ + uint8_t data[MRQ_RINGBUF_CONSOLE_MAX_WRITE_LEN]; + /** @brief Number of bytes in cmd_ringbuf_console_write_req::data */ + uint8_t len; +} BPMP_ABI_PACKED; + +/** + * @ingroup RingbufConsole + * @brief BPMP->Host response data for request type #CMD_RINGBUF_CONSOLE_WRITE + */ +struct cmd_ringbuf_console_write_resp { + /** @brief Number of bytes of available space in the BPMP RX buffer */ + uint32_t space_avail; + /** @brief Number of bytes that were written to the BPMP RX buffer */ + uint8_t len; +} BPMP_ABI_PACKED; + +/** @private */ +struct cmd_ringbuf_console_get_fifo_req { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +/** + * @ingroup RingbufConsole + * @brief BPMP->Host reply data for request type #CMD_RINGBUF_CONSOLE_GET_FIFO + */ +struct cmd_ringbuf_console_get_fifo_resp { + /** @brief Physical address of the BPMP TX buffer */ + uint64_t bpmp_tx_buf_addr; + /** @brief Physical address of the BPMP TX buffer head counter */ + uint64_t bpmp_tx_head_addr; + /** @brief Physical address of the BPMP TX buffer tail counter */ + uint64_t bpmp_tx_tail_addr; + /** @brief Length of the BPMP TX buffer */ + uint32_t bpmp_tx_buf_len; +} BPMP_ABI_PACKED; + +/** + * @ingroup RingbufConsole + * @brief Host->BPMP request data. + * + * Reply type is union #mrq_ringbuf_console_bpmp_to_host_response . + */ +struct mrq_ringbuf_console_host_to_bpmp_request { + /** + * @brief Type of request. Values listed in enum + * #mrq_ringbuf_console_host_to_bpmp_cmd. + */ + uint32_t type; + /** @brief request type specific parameters. */ + union { + struct cmd_ringbuf_console_query_abi_req query_abi; + struct cmd_ringbuf_console_read_req read; + struct cmd_ringbuf_console_write_req write; + struct cmd_ringbuf_console_get_fifo_req get_fifo; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** + * @ingroup RingbufConsole + * @brief Host->BPMP reply data + * + * In response to struct #mrq_ringbuf_console_host_to_bpmp_request. + */ +union mrq_ringbuf_console_bpmp_to_host_response { + struct cmd_ringbuf_console_query_abi_resp query_abi; + struct cmd_ringbuf_console_read_resp read; + struct cmd_ringbuf_console_write_resp write; + struct cmd_ringbuf_console_get_fifo_resp get_fifo; +} BPMP_ABI_PACKED; +/** @} */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_STRAP + * @brief Set a strap value controlled by BPMP + * + * * Platforms: T194 onwards + * @cond bpmp_t194 + * * Initiators: CCPLEX + * * Targets: BPMP + * * Request Payload: @ref mrq_strap_request + * * Response Payload: N/A + * @addtogroup Strap + * + * A strap is an input that is sampled by a hardware unit during the + * unit's startup process. The sampled value of a strap affects the + * behavior of the unit until the unit is restarted. Many hardware + * units sample their straps at the instant that their resets are + * deasserted. + * + * BPMP owns registers which act as straps to various units. It + * exposes limited control of those straps via #MRQ_STRAP. + * + * @{ + */ +enum mrq_strap_cmd { + /** @private */ + STRAP_RESERVED = 0, + /** @brief Set a strap value */ + STRAP_SET = 1 +}; + +/** + * @brief Request with #MRQ_STRAP + */ +struct mrq_strap_request { + /** @brief @ref mrq_strap_cmd */ + uint32_t cmd; + /** @brief Strap ID from @ref Strap_Ids */ + uint32_t id; + /** @brief Desired value for strap (if cmd is #STRAP_SET) */ + uint32_t value; +} BPMP_ABI_PACKED; + +/** + * @defgroup Strap_Ids Strap Identifiers + * @} + */ +/** @endcond */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_UPHY + * @brief Perform a UPHY operation + * + * * Platforms: T194 onwards + * @cond bpmp_t194 + * * Initiators: CCPLEX + * * Targets: BPMP + * * Request Payload: @ref mrq_uphy_request + * * Response Payload: @ref mrq_uphy_response + * + * @addtogroup UPHY + * @{ + */ +enum { + CMD_UPHY_PCIE_LANE_MARGIN_CONTROL = 1, + CMD_UPHY_PCIE_LANE_MARGIN_STATUS = 2, + CMD_UPHY_PCIE_EP_CONTROLLER_PLL_INIT = 3, + CMD_UPHY_PCIE_CONTROLLER_STATE = 4, + CMD_UPHY_PCIE_EP_CONTROLLER_PLL_OFF = 5, + CMD_UPHY_MAX, +}; + +struct cmd_uphy_margin_control_request { + /** @brief Enable margin */ + int32_t en; + /** @brief Clear the number of error and sections */ + int32_t clr; + /** @brief Set x offset (1's complement) for left/right margin type (y should be 0) */ + uint32_t x; + /** @brief Set y offset (1's complement) for left/right margin type (x should be 0) */ + uint32_t y; + /** @brief Set number of bit blocks for each margin section */ + uint32_t nblks; +} BPMP_ABI_PACKED; + +struct cmd_uphy_margin_status_response { + /** @brief Number of errors observed */ + uint32_t status; +} BPMP_ABI_PACKED; + +struct cmd_uphy_ep_controller_pll_init_request { + /** @brief EP controller number, valid: 0, 4, 5 */ + uint8_t ep_controller; +} BPMP_ABI_PACKED; + +struct cmd_uphy_pcie_controller_state_request { + /** @brief PCIE controller number, valid: 0, 1, 2, 3, 4 */ + uint8_t pcie_controller; + uint8_t enable; +} BPMP_ABI_PACKED; + +struct cmd_uphy_ep_controller_pll_off_request { + /** @brief EP controller number, valid: 0, 4, 5 */ + uint8_t ep_controller; +} BPMP_ABI_PACKED; + +/** + * @ingroup UPHY + * @brief Request with #MRQ_UPHY + * + * Used by the sender of an #MRQ_UPHY message to control UPHY Lane RX margining. + * The uphy_request is split into several sub-commands. Some sub-commands + * require no additional data. Others have a sub-command specific payload + * + * |sub-command |payload | + * |------------------------------------ |----------------------------------------| + * |CMD_UPHY_PCIE_LANE_MARGIN_CONTROL |uphy_set_margin_control | + * |CMD_UPHY_PCIE_LANE_MARGIN_STATUS | | + * |CMD_UPHY_PCIE_EP_CONTROLLER_PLL_INIT |cmd_uphy_ep_controller_pll_init_request | + * |CMD_UPHY_PCIE_CONTROLLER_STATE |cmd_uphy_pcie_controller_state_request | + * |CMD_UPHY_PCIE_EP_CONTROLLER_PLL_OFF |cmd_uphy_ep_controller_pll_off_request | + * + */ + +struct mrq_uphy_request { + /** @brief Lane number. */ + uint16_t lane; + /** @brief Sub-command id. */ + uint16_t cmd; + + union { + struct cmd_uphy_margin_control_request uphy_set_margin_control; + struct cmd_uphy_ep_controller_pll_init_request ep_ctrlr_pll_init; + struct cmd_uphy_pcie_controller_state_request controller_state; + struct cmd_uphy_ep_controller_pll_off_request ep_ctrlr_pll_off; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** + * @ingroup UPHY + * @brief Response to MRQ_UPHY + * + * Each sub-command supported by @ref mrq_uphy_request may return + * sub-command-specific data. Some do and some do not as indicated in + * the following table + * + * |sub-command |payload | + * |---------------------------- |------------------------| + * |CMD_UPHY_PCIE_LANE_MARGIN_CONTROL | | + * |CMD_UPHY_PCIE_LANE_MARGIN_STATUS |uphy_get_margin_status | + * + */ + +struct mrq_uphy_response { + union { + struct cmd_uphy_margin_status_response uphy_get_margin_status; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** @} */ +/** @endcond */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_FMON + * @brief Perform a frequency monitor configuration operations + * + * * Platforms: T194 onwards + * @cond bpmp_t194 + * * Initiators: CCPLEX + * * Targets: BPMP + * * Request Payload: @ref mrq_fmon_request + * * Response Payload: @ref mrq_fmon_response + * + * @addtogroup FMON + * @{ + */ +enum { + /** + * @brief Clamp FMON configuration to specified rate. + * + * The monitored clock must be running for clamp to succeed. If + * clamped, FMON configuration is preserved when clock rate + * and/or state is changed. + */ + CMD_FMON_GEAR_CLAMP = 1, + /** + * @brief Release clamped FMON configuration. + * + * Allow FMON configuration to follow monitored clock rate + * and/or state changes. + */ + CMD_FMON_GEAR_FREE = 2, + /** + * @brief Return rate FMON is clamped at, or 0 if FMON is not + * clamped. + * + * Inherently racy, since clamp state can be changed + * concurrently. Useful for testing. + */ + CMD_FMON_GEAR_GET = 3, + CMD_FMON_NUM, +}; + +struct cmd_fmon_gear_clamp_request { + int32_t unused; + int64_t rate; +} BPMP_ABI_PACKED; + +/** @private */ +struct cmd_fmon_gear_clamp_response { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +/** @private */ +struct cmd_fmon_gear_free_request { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +/** @private */ +struct cmd_fmon_gear_free_response { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +/** @private */ +struct cmd_fmon_gear_get_request { + BPMP_ABI_EMPTY +} BPMP_ABI_PACKED; + +struct cmd_fmon_gear_get_response { + int64_t rate; +} BPMP_ABI_PACKED; + +/** + * @ingroup FMON + * @brief Request with #MRQ_FMON + * + * Used by the sender of an #MRQ_FMON message to configure clock + * frequency monitors. The FMON request is split into several + * sub-commands. Some sub-commands require no additional data. + * Others have a sub-command specific payload + * + * |sub-command |payload | + * |----------------------------|-----------------------| + * |CMD_FMON_GEAR_CLAMP |fmon_gear_clamp | + * |CMD_FMON_GEAR_FREE |- | + * |CMD_FMON_GEAR_GET |- | + * + */ + +struct mrq_fmon_request { + /** @brief Sub-command and clock id concatenated to 32-bit word. + * - bits[31..24] is the sub-cmd. + * - bits[23..0] is monitored clock id used to select target + * FMON + */ + uint32_t cmd_and_id; + + union { + struct cmd_fmon_gear_clamp_request fmon_gear_clamp; + /** @private */ + struct cmd_fmon_gear_free_request fmon_gear_free; + /** @private */ + struct cmd_fmon_gear_get_request fmon_gear_get; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** + * @ingroup FMON + * @brief Response to MRQ_FMON + * + * Each sub-command supported by @ref mrq_fmon_request may + * return sub-command-specific data as indicated below. + * + * |sub-command |payload | + * |----------------------------|------------------------| + * |CMD_FMON_GEAR_CLAMP |- | + * |CMD_FMON_GEAR_FREE |- | + * |CMD_FMON_GEAR_GET |fmon_gear_get | + * + */ + +struct mrq_fmon_response { + union { + /** @private */ + struct cmd_fmon_gear_clamp_response fmon_gear_clamp; + /** @private */ + struct cmd_fmon_gear_free_response fmon_gear_free; + struct cmd_fmon_gear_get_response fmon_gear_get; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** @} */ +/** @endcond */ + +/** + * @ingroup MRQ_Codes + * @def MRQ_EC + * @brief Provide status information on faults reported by Error + * Collator (EC) to HSM. + * + * * Platforms: T194 onwards + * @cond bpmp_t194 + * * Initiators: CCPLEX + * * Targets: BPMP + * * Request Payload: @ref mrq_ec_request + * * Response Payload: @ref mrq_ec_response + * + * @note This MRQ ABI is under construction, and subject to change + * + * @addtogroup EC + * @{ + */ +enum { + /** + * @cond DEPRECATED + * @brief Retrieve specified EC status. + * + * mrq_response::err is 0 if the operation was successful, or @n + * -#BPMP_ENODEV if target EC is not owned by BPMP @n + * -#BPMP_EACCES if target EC power domain is turned off @n + * -#BPMP_EBADCMD if subcommand is not supported + * @endcond + */ + CMD_EC_STATUS_GET = 1, /* deprecated */ + + /** + * @brief Retrieve specified EC extended status (includes error + * counter and user values). + * + * mrq_response::err is 0 if the operation was successful, or @n + * -#BPMP_ENODEV if target EC is not owned by BPMP @n + * -#BPMP_EACCES if target EC power domain is turned off @n + * -#BPMP_EBADCMD if subcommand is not supported + */ + CMD_EC_STATUS_EX_GET = 2, + CMD_EC_NUM, +}; + +/** @brief BPMP ECs error types */ +enum bpmp_ec_err_type { + /** @brief Parity error on internal data path + * + * Error descriptor @ref ec_err_simple_desc. + */ + EC_ERR_TYPE_PARITY_INTERNAL = 1, + + /** @brief ECC SEC error on internal data path + * + * Error descriptor @ref ec_err_simple_desc. + */ + EC_ERR_TYPE_ECC_SEC_INTERNAL = 2, + + /** @brief ECC DED error on internal data path + * + * Error descriptor @ref ec_err_simple_desc. + */ + EC_ERR_TYPE_ECC_DED_INTERNAL = 3, + + /** @brief Comparator error + * + * Error descriptor @ref ec_err_simple_desc. + */ + EC_ERR_TYPE_COMPARATOR = 4, + + /** @brief Register parity error + * + * Error descriptor @ref ec_err_reg_parity_desc. + */ + EC_ERR_TYPE_REGISTER_PARITY = 5, + + /** @brief Parity error from on-chip SRAM/FIFO + * + * Error descriptor @ref ec_err_simple_desc. + */ + EC_ERR_TYPE_PARITY_SRAM = 6, + + /** @brief Clock Monitor error + * + * Error descriptor @ref ec_err_fmon_desc. + */ + EC_ERR_TYPE_CLOCK_MONITOR = 9, + + /** @brief Voltage Monitor error + * + * Error descriptor @ref ec_err_vmon_desc. + */ + EC_ERR_TYPE_VOLTAGE_MONITOR = 10, + + /** @brief SW Correctable error + * + * Error descriptor @ref ec_err_sw_error_desc. + */ + EC_ERR_TYPE_SW_CORRECTABLE = 16, + + /** @brief SW Uncorrectable error + * + * Error descriptor @ref ec_err_sw_error_desc. + */ + EC_ERR_TYPE_SW_UNCORRECTABLE = 17, + + /** @brief Other HW Correctable error + * + * Error descriptor @ref ec_err_simple_desc. + */ + EC_ERR_TYPE_OTHER_HW_CORRECTABLE = 32, + + /** @brief Other HW Uncorrectable error + * + * Error descriptor @ref ec_err_simple_desc. + */ + EC_ERR_TYPE_OTHER_HW_UNCORRECTABLE = 33, +}; + +/** @brief Group of registers with parity error. */ +enum ec_registers_group { + /** @brief Functional registers group */ + EC_ERR_GROUP_FUNC_REG = 0U, + /** @brief SCR registers group */ + EC_ERR_GROUP_SCR_REG = 1U, +}; + +/** + * @defgroup bpmp_ec_status_flags EC Status Flags + * @addtogroup bpmp_ec_status_flags + * @{ + */ +/** @brief No EC error found flag */ +#define EC_STATUS_FLAG_NO_ERROR 0x0001U +/** @brief Last EC error found flag */ +#define EC_STATUS_FLAG_LAST_ERROR 0x0002U +/** @brief EC latent error flag */ +#define EC_STATUS_FLAG_LATENT_ERROR 0x0004U +/** @} */ + +/** + * @defgroup bpmp_ec_desc_flags EC Descriptor Flags + * @addtogroup bpmp_ec_desc_flags + * @{ + */ +/** @brief EC descriptor error resolved flag */ +#define EC_DESC_FLAG_RESOLVED 0x0001U +/** @brief EC descriptor failed to retrieve id flag */ +#define EC_DESC_FLAG_NO_ID 0x0002U +/** @} */ + +/** + * |error type | fmon_clk_id values | + * |---------------------------------|---------------------------| + * |@ref EC_ERR_TYPE_CLOCK_MONITOR |@ref bpmp_clock_ids | + */ +struct ec_err_fmon_desc { + /** @brief Bitmask of @ref bpmp_ec_desc_flags */ + uint16_t desc_flags; + /** @brief FMON monitored clock id */ + uint16_t fmon_clk_id; + /** @brief Bitmask of @ref bpmp_fmon_faults_flags */ + uint32_t fmon_faults; + /** @brief FMON faults access error */ + int32_t fmon_access_error; +} BPMP_ABI_PACKED; + +/** + * |error type | vmon_adc_id values | + * |---------------------------------|---------------------------| + * |@ref EC_ERR_TYPE_VOLTAGE_MONITOR |@ref bpmp_adc_ids | + */ +struct ec_err_vmon_desc { + /** @brief Bitmask of @ref bpmp_ec_desc_flags */ + uint16_t desc_flags; + /** @brief VMON rail adc id */ + uint16_t vmon_adc_id; + /** @brief Bitmask of @ref bpmp_vmon_faults_flags */ + uint32_t vmon_faults; + /** @brief VMON faults access error */ + int32_t vmon_access_error; +} BPMP_ABI_PACKED; + +/** + * |error type | reg_id values | + * |---------------------------------|---------------------------| + * |@ref EC_ERR_TYPE_REGISTER_PARITY |@ref bpmp_ec_registers_ids | + */ +struct ec_err_reg_parity_desc { + /** @brief Bitmask of @ref bpmp_ec_desc_flags */ + uint16_t desc_flags; + /** @brief Register id */ + uint16_t reg_id; + /** @brief Register group @ref ec_registers_group */ + uint16_t reg_group; +} BPMP_ABI_PACKED; + +/** + * |error type | err_source_id values | + * |--------------------------------- |--------------------------| + * |@ref EC_ERR_TYPE_SW_CORRECTABLE | @ref bpmp_ec_ce_swd_ids | + * |@ref EC_ERR_TYPE_SW_UNCORRECTABLE | @ref bpmp_ec_ue_swd_ids | + */ +struct ec_err_sw_error_desc { + /** @brief Bitmask of @ref bpmp_ec_desc_flags */ + uint16_t desc_flags; + /** @brief Error source id */ + uint16_t err_source_id; + /** @brief Sw error data */ + uint32_t sw_error_data; +} BPMP_ABI_PACKED; + +/** + * |error type | err_source_id values | + * |----------------------------------------|---------------------------| + * |@ref EC_ERR_TYPE_PARITY_INTERNAL |@ref bpmp_ec_ipath_ids | + * |@ref EC_ERR_TYPE_ECC_SEC_INTERNAL |@ref bpmp_ec_ipath_ids | + * |@ref EC_ERR_TYPE_ECC_DED_INTERNAL |@ref bpmp_ec_ipath_ids | + * |@ref EC_ERR_TYPE_COMPARATOR |@ref bpmp_ec_comparator_ids| + * |@ref EC_ERR_TYPE_PARITY_SRAM |@ref bpmp_clock_ids | + * |@ref EC_ERR_TYPE_OTHER_HW_CORRECTABLE |@ref bpmp_ec_misc_hwd_ids | + * |@ref EC_ERR_TYPE_OTHER_HW_UNCORRECTABLE |@ref bpmp_ec_misc_hwd_ids | + */ +struct ec_err_simple_desc { + /** @brief Bitmask of @ref bpmp_ec_desc_flags */ + uint16_t desc_flags; + /** @brief Error source id. Id space depends on error type. */ + uint16_t err_source_id; +} BPMP_ABI_PACKED; + +/** @brief Union of EC error descriptors */ +union ec_err_desc { + struct ec_err_fmon_desc fmon_desc; + struct ec_err_vmon_desc vmon_desc; + struct ec_err_reg_parity_desc reg_parity_desc; + struct ec_err_sw_error_desc sw_error_desc; + struct ec_err_simple_desc simple_desc; +} BPMP_ABI_PACKED; + +struct cmd_ec_status_get_request { + /** @brief HSM error line number that identifies target EC. */ + uint32_t ec_hsm_id; +} BPMP_ABI_PACKED; + +/** EC status maximum number of descriptors */ +#define EC_ERR_STATUS_DESC_MAX_NUM 4U + +/** + * @cond DEPRECATED + */ +struct cmd_ec_status_get_response { + /** @brief Target EC id (the same id received with request). */ + uint32_t ec_hsm_id; + /** + * @brief Bitmask of @ref bpmp_ec_status_flags + * + * If NO_ERROR flag is set, error_ fields should be ignored + */ + uint32_t ec_status_flags; + /** @brief Found EC error index. */ + uint32_t error_idx; + /** @brief Found EC error type @ref bpmp_ec_err_type. */ + uint32_t error_type; + /** @brief Number of returned EC error descriptors */ + uint32_t error_desc_num; + /** @brief EC error descriptors */ + union ec_err_desc error_descs[EC_ERR_STATUS_DESC_MAX_NUM]; +} BPMP_ABI_PACKED; +/** @endcond */ + +struct cmd_ec_status_ex_get_response { + /** @brief Target EC id (the same id received with request). */ + uint32_t ec_hsm_id; + /** + * @brief Bitmask of @ref bpmp_ec_status_flags + * + * If NO_ERROR flag is set, error_ fields should be ignored + */ + uint32_t ec_status_flags; + /** @brief Found EC error index. */ + uint32_t error_idx; + /** @brief Found EC error type @ref bpmp_ec_err_type. */ + uint32_t error_type; + /** @brief Found EC mission error counter value */ + uint32_t error_counter; + /** @brief Found EC mission error user value */ + uint32_t error_uval; + /** @brief Reserved entry */ + uint32_t reserved; + /** @brief Number of returned EC error descriptors */ + uint32_t error_desc_num; + /** @brief EC error descriptors */ + union ec_err_desc error_descs[EC_ERR_STATUS_DESC_MAX_NUM]; +} BPMP_ABI_PACKED; + +/** + * @ingroup EC + * @brief Request with #MRQ_EC + * + * Used by the sender of an #MRQ_EC message to access ECs owned + * by BPMP. + * + * @cond DEPRECATED + * |sub-command |payload | + * |----------------------------|-----------------------| + * |@ref CMD_EC_STATUS_GET |ec_status_get | + * @endcond + * + * |sub-command |payload | + * |----------------------------|-----------------------| + * |@ref CMD_EC_STATUS_EX_GET |ec_status_get | + * + */ + +struct mrq_ec_request { + /** @brief Sub-command id. */ + uint32_t cmd_id; + + union { + struct cmd_ec_status_get_request ec_status_get; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** + * @ingroup EC + * @brief Response to MRQ_EC + * + * Each sub-command supported by @ref mrq_ec_request may return + * sub-command-specific data as indicated below. + * + * @cond DEPRECATED + * |sub-command |payload | + * |----------------------------|------------------------| + * |@ref CMD_EC_STATUS_GET |ec_status_get | + * @endcond + * + * |sub-command |payload | + * |----------------------------|------------------------| + * |@ref CMD_EC_STATUS_EX_GET |ec_status_ex_get | + * + */ + +struct mrq_ec_response { + union { + /** + * @cond DEPRECATED + */ + struct cmd_ec_status_get_response ec_status_get; + /** @endcond */ + struct cmd_ec_status_ex_get_response ec_status_ex_get; + } BPMP_UNION_ANON; +} BPMP_ABI_PACKED; + +/** @} */ +/** @endcond */ + +/** + * @addtogroup Error_Codes + * Negative values for mrq_response::err generally indicate some + * error. The ABI defines the following error codes. Negating these + * defines is an exercise left to the user. + * @{ + */ + +/** @brief Operation not permitted */ +#define BPMP_EPERM 1 +/** @brief No such file or directory */ +#define BPMP_ENOENT 2 +/** @brief No MRQ handler */ +#define BPMP_ENOHANDLER 3 +/** @brief I/O error */ +#define BPMP_EIO 5 +/** @brief Bad sub-MRQ command */ +#define BPMP_EBADCMD 6 +/** @brief Resource temporarily unavailable */ +#define BPMP_EAGAIN 11 +/** @brief Not enough memory */ +#define BPMP_ENOMEM 12 +/** @brief Permission denied */ +#define BPMP_EACCES 13 +/** @brief Bad address */ +#define BPMP_EFAULT 14 +/** @brief Resource busy */ +#define BPMP_EBUSY 16 +/** @brief No such device */ +#define BPMP_ENODEV 19 +/** @brief Argument is a directory */ +#define BPMP_EISDIR 21 +/** @brief Invalid argument */ +#define BPMP_EINVAL 22 +/** @brief Timeout during operation */ +#define BPMP_ETIMEDOUT 23 +/** @brief Out of range */ +#define BPMP_ERANGE 34 +/** @brief Function not implemented */ +#define BPMP_ENOSYS 38 +/** @brief Invalid slot */ +#define BPMP_EBADSLT 57 +/** @brief Not supported */ +#define BPMP_ENOTSUP 134 +/** @brief No such device or address */ +#define BPMP_ENXIO 140 + +/** @} */ + +#if defined(BPMP_ABI_CHECKS) +#include "bpmp_abi_checks.h" +#endif + +#endif |