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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /include/soc/tegra/bpmp-abi.h
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/soc/tegra/bpmp-abi.h')
-rw-r--r--include/soc/tegra/bpmp-abi.h3973
1 files changed, 3973 insertions, 0 deletions
diff --git a/include/soc/tegra/bpmp-abi.h b/include/soc/tegra/bpmp-abi.h
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+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2014-2022, 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
+ * Request an answer from the peer.
+ * This should be set in mrq_request::flags for all requests targetted
+ * at BPMP. For requests originating in BPMP, this flag is optional except
+ * for messages targeting MCE, for which the field must be set.
+ * When this flag is not set, the remote peer must not send a response
+ * back.
+ */
+#define BPMP_MAIL_DO_ACK (1U << 0U)
+
+/**
+ * @ingroup MRQ_Format
+ * Ring the sender's doorbell when responding. This should be set unless
+ * the sender wants to poll the underlying communications layer directly.
+ *
+ * An optional direction that can be specified in mrq_request::flags.
+ */
+#define BPMP_MAIL_RING_DB (1U << 1U)
+
+/**
+ * @ingroup MRQ_Format
+ * CRC present
+ */
+#define BPMP_MAIL_CRC_PRESENT (1U << 2U)
+
+/**
+ * @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 32bit word containing a number of fields as follows:
+ *
+ * struct {
+ * uint8_t options:4;
+ * uint8_t xid:4;
+ * uint8_t payload_length;
+ * uint16_t crc16;
+ * };
+ *
+ * **options** directions to the receiver and indicates CRC presence.
+ *
+ * #BPMP_MAIL_DO_ACK and #BPMP_MAIL_RING_DB see documentation of respective options.
+ * #BPMP_MAIL_CRC_PRESENT is supported on T234 and later platforms. It indicates the
+ * crc16, xid and length fields are present when set.
+ * Some platform configurations, especially when targeted to applications requiring
+ * functional safety, mandate this option being set or otherwise will respond with
+ * -BPMP_EBADMSG and ignore the request.
+ *
+ * **xid** is a transaction ID.
+ *
+ * Only used when #BPMP_MAIL_CRC_PRESENT is set.
+ *
+ * **payload_length** of the message expressed in bytes without the size of this header.
+ * See table below for minimum accepted payload lengths for each MRQ.
+ * Note: For DMCE communication, this field expresses the length as a multiple of 4 bytes
+ * rather than bytes.
+ *
+ * Only used when #BPMP_MAIL_CRC_PRESENT is set.
+ *
+ * | MRQ | CMD | minimum payload length
+ * | -------------------- | ------------------------------------ | ------------------------------------------ |
+ * | MRQ_PING | | 4 |
+ * | MRQ_THREADED_PING | | 4 |
+ * | MRQ_RESET | any | 8 |
+ * | MRQ_I2C | | 12 + cmd_i2c_xfer_request.data_size |
+ * | MRQ_CLK | CMD_CLK_GET_RATE | 4 |
+ * | MRQ_CLK | CMD_CLK_SET_RATE | 16 |
+ * | MRQ_CLK | CMD_CLK_ROUND_RATE | 16 |
+ * | MRQ_CLK | CMD_CLK_GET_PARENT | 4 |
+ * | MRQ_CLK | CMD_CLK_SET_PARENT | 8 |
+ * | MRQ_CLK | CMD_CLK_ENABLE | 4 |
+ * | MRQ_CLK | CMD_CLK_DISABLE | 4 |
+ * | MRQ_CLK | CMD_CLK_IS_ENABLED | 4 |
+ * | MRQ_CLK | CMD_CLK_GET_ALL_INFO | 4 |
+ * | MRQ_CLK | CMD_CLK_GET_MAX_CLK_ID | 4 |
+ * | MRQ_CLK | CMD_CLK_GET_FMAX_AT_VMIN | 4 |
+ * | MRQ_QUERY_ABI | | 4 |
+ * | MRQ_PG | CMD_PG_QUERY_ABI | 12 |
+ * | MRQ_PG | CMD_PG_SET_STATE | 12 |
+ * | MRQ_PG | CMD_PG_GET_STATE | 8 |
+ * | MRQ_PG | CMD_PG_GET_NAME | 8 |
+ * | MRQ_PG | CMD_PG_GET_MAX_ID | 8 |
+ * | MRQ_THERMAL | CMD_THERMAL_QUERY_ABI | 8 |
+ * | MRQ_THERMAL | CMD_THERMAL_GET_TEMP | 8 |
+ * | MRQ_THERMAL | CMD_THERMAL_SET_TRIP | 20 |
+ * | MRQ_THERMAL | CMD_THERMAL_GET_NUM_ZONES | 4 |
+ * | MRQ_THERMAL | CMD_THERMAL_GET_THERMTRIP | 8 |
+ * | MRQ_CPU_VHINT | | 8 |
+ * | MRQ_ABI_RATCHET | | 2 |
+ * | MRQ_EMC_DVFS_LATENCY | | 8 |
+ * | MRQ_EMC_DVFS_EMCHUB | | 8 |
+ * | MRQ_EMC_DISP_RFL | | 4 |
+ * | MRQ_BWMGR | CMD_BWMGR_QUERY_ABI | 8 |
+ * | MRQ_BWMGR | CMD_BWMGR_CALC_RATE | 8 + 8 * bwmgr_rate_req.num_iso_clients |
+ * | MRQ_ISO_CLIENT | CMD_ISO_CLIENT_QUERY_ABI | 8 |
+ * | MRQ_ISO_CLIENT | CMD_ISO_CLIENT_CALCULATE_LA | 16 |
+ * | MRQ_ISO_CLIENT | CMD_ISO_CLIENT_SET_LA | 16 |
+ * | MRQ_ISO_CLIENT | CMD_ISO_CLIENT_GET_MAX_BW | 8 |
+ * | MRQ_CPU_NDIV_LIMITS | | 4 |
+ * | MRQ_CPU_AUTO_CC3 | | 4 |
+ * | MRQ_RINGBUF_CONSOLE | CMD_RINGBUF_CONSOLE_QUERY_ABI | 8 |
+ * | MRQ_RINGBUF_CONSOLE | CMD_RINGBUF_CONSOLE_READ | 5 |
+ * | MRQ_RINGBUF_CONSOLE | CMD_RINGBUF_CONSOLE_WRITE | 5 + cmd_ringbuf_console_write_req.len |
+ * | MRQ_RINGBUF_CONSOLE | CMD_RINGBUF_CONSOLE_GET_FIFO | 4 |
+ * | MRQ_STRAP | STRAP_SET | 12 |
+ * | MRQ_UPHY | CMD_UPHY_PCIE_LANE_MARGIN_CONTROL | 24 |
+ * | MRQ_UPHY | CMD_UPHY_PCIE_LANE_MARGIN_STATUS | 4 |
+ * | MRQ_UPHY | CMD_UPHY_PCIE_EP_CONTROLLER_PLL_INIT | 5 |
+ * | MRQ_UPHY | CMD_UPHY_PCIE_CONTROLLER_STATE | 6 |
+ * | MRQ_UPHY | CMD_UPHY_PCIE_EP_CONTROLLER_PLL_OFF | 5 |
+ * | MRQ_FMON | CMD_FMON_GEAR_CLAMP | 16 |
+ * | MRQ_FMON | CMD_FMON_GEAR_FREE | 4 |
+ * | MRQ_FMON | CMD_FMON_GEAR_GET | 4 |
+ * | MRQ_FMON | CMD_FMON_FAULT_STS_GET | 8 |
+ * | MRQ_EC | CMD_EC_STATUS_EX_GET | 12 |
+ * | MRQ_QUERY_FW_TAG | | 0 |
+ * | MRQ_DEBUG | CMD_DEBUG_OPEN_RO | 4 + length of cmd_debug_fopen_request.name |
+ * | MRQ_DEBUG | CMD_DEBUG_OPEN_WO | 4 + length of cmd_debug_fopen_request.name |
+ * | MRQ_DEBUG | CMD_DEBUG_READ | 8 |
+ * | MRQ_DEBUG | CMD_DEBUG_WRITE | 12 + cmd_debug_fwrite_request.datalen |
+ * | MRQ_DEBUG | CMD_DEBUG_CLOSE | 8 |
+ * | MRQ_TELEMETRY | | 8 |
+ * | MRQ_PWR_LIMIT | CMD_PWR_LIMIT_QUERY_ABI | 8 |
+ * | MRQ_PWR_LIMIT | CMD_PWR_LIMIT_SET | 20 |
+ * | MRQ_PWR_LIMIT | CMD_PWR_LIMIT_GET | 16 |
+ * | MRQ_PWR_LIMIT | CMD_PWR_LIMIT_CURR_CAP | 8 |
+ * | MRQ_GEARS | | 0 |
+ * | MRQ_BWMGR_INT | CMD_BWMGR_INT_QUERY_ABI | 8 |
+ * | MRQ_BWMGR_INT | CMD_BWMGR_INT_CALC_AND_SET | 16 |
+ * | MRQ_BWMGR_INT | CMD_BWMGR_INT_CAP_SET | 8 |
+ * | MRQ_OC_STATUS | | 0 |
+ *
+ * **crc16**
+ *
+ * CRC16 using polynomial x^16 + x^14 + x^12 + x^11 + x^8 + x^5 + x^4 + x^2 + 1
+ * and initialization value 0x4657. The CRC is calculated over all bytes of the message
+ * including this header. However the crc16 field is considered to be set to 0 when
+ * calculating the CRC. Only used when #BPMP_MAIL_CRC_PRESENT is set. If
+ * #BPMP_MAIL_CRC_PRESENT is set and this field does not match the CRC as
+ * calculated by BPMP, -BPMP_EBADMSG will be returned and the request will
+ * be ignored. See code snippet below on how to calculate the CRC.
+ *
+ * @code
+ * uint16_t calc_crc_digest(uint16_t crc, uint8_t *data, size_t size)
+ * {
+ * for (size_t i = 0; i < size; i++) {
+ * crc ^= data[i] << 8;
+ * for (size_t j = 0; j < 8; j++) {
+ * if ((crc & 0x8000) == 0x8000) {
+ * crc = (crc << 1) ^ 0xAC9A;
+ * } else {
+ * crc = (crc << 1);
+ * }
+ * }
+ * }
+ * return crc;
+ * }
+ *
+ * uint16_t calc_crc(uint8_t *data, size_t size)
+ * {
+ * return calc_crc_digest(0x4657, data, size);
+ * }
+ * @endcode
+ */
+ 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 32bit word containing a number of fields as follows:
+ *
+ * struct {
+ * uint8_t options:4;
+ * uint8_t xid:4;
+ * uint8_t payload_length;
+ * uint16_t crc16;
+ * };
+ *
+ * **options** indicates CRC presence.
+ *
+ * #BPMP_MAIL_CRC_PRESENT is supported on T234 and later platforms and
+ * indicates the crc16 related fields are present when set.
+ *
+ * **xid** is the transaction ID as sent by the requestor.
+ *
+ * **length** of the message expressed in bytes without the size of this header.
+ * Note: For DMCE communication, this field expresses the length as a multiple of 4 bytes
+ * rather than bytes.
+ *
+ * **crc16**
+ *
+ * CRC16 using polynomial x^16 + x^14 + x^12 + x^11 + x^8 + x^5 + x^4 + x^2 + 1
+ * and initialization value 0x4657. The CRC is calculated over all bytes of the message
+ * including this header. However the crc16 field is considered to be set to 0 when
+ * calculating the CRC. Only used when #BPMP_MAIL_CRC_PRESENT is set.
+ */
+ 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_THREADED_PING 9U
+#define MRQ_DEBUGFS 19U
+#define MRQ_RESET 20U
+#define MRQ_I2C 21U
+#define MRQ_CLK 22U
+#define MRQ_QUERY_ABI 23U
+#define MRQ_THERMAL 27U
+#define MRQ_CPU_VHINT 28U
+#define MRQ_ABI_RATCHET 29U
+#define MRQ_EMC_DVFS_LATENCY 31U
+#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
+#define MRQ_EMC_DVFS_EMCHUB 76U
+#define MRQ_BWMGR 77U
+#define MRQ_ISO_CLIENT 78U
+#define MRQ_EMC_DISP_RFL 79U
+#define MRQ_TELEMETRY 80U
+#define MRQ_PWR_LIMIT 81U
+#define MRQ_GEARS 82U
+#define MRQ_BWMGR_INT 83U
+#define MRQ_OC_STATUS 84U
+
+/** @cond DEPRECATED */
+#define MRQ_RESERVED_2 2U
+#define MRQ_RESERVED_3 3U
+#define MRQ_RESERVED_4 4U
+#define MRQ_RESERVED_5 5U
+#define MRQ_RESERVED_6 6U
+#define MRQ_RESERVED_7 7U
+#define MRQ_RESERVED_8 8U
+#define MRQ_RESERVED_10 10U
+#define MRQ_RESERVED_11 11U
+#define MRQ_RESERVED_12 12U
+#define MRQ_RESERVED_13 13U
+#define MRQ_RESERVED_14 14U
+#define MRQ_RESERVED_15 15U
+#define MRQ_RESERVED_16 16U
+#define MRQ_RESERVED_17 17U
+#define MRQ_RESERVED_18 18U
+#define MRQ_RESERVED_24 24U
+#define MRQ_RESERVED_25 25U
+#define MRQ_RESERVED_26 26U
+#define MRQ_RESERVED_30 30U
+#define MRQ_RESERVED_64 64U
+#define MRQ_RESERVED_74 74U
+/** @endcond DEPRECATED */
+
+/** @} */
+
+/**
+ * @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 84U
+
+/**
+ * @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 OC_status OC status
+ * @defgroup Vhint CPU Voltage hint
+ * @defgroup EMC EMC
+ * @defgroup BWMGR BWMGR
+ * @defgroup ISO_CLIENT ISO_CLIENT
+ * @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 Telemetry Telemetry
+ * @defgroup Pwrlimit PWR_LIMIT
+ * @defgroup Gears Gears
+ * @defgroup BWMGR_INT Bandwidth Manager Integrated
+ * @} MRQ_Payloads
+ */
+
+/**
+ * @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;
+
+/** @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_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)
+/** @} Debugfs */
+
+/**
+ * @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;
+
+/** @} Reset */
+
+/**
+ * @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 Tegra PWR_I2C bus identifier
+ *
+ * @cond (bpmp_t234 || bpmp_t239 || bpmp_t194)
+ * Must be set to 5.
+ * @endcond (bpmp_t234 || bpmp_t239 || bpmp_t194)
+ * @cond bpmp_th500
+ * Must be set to 1.
+ * @endcond bpmp_th500
+ *
+ */
+ 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;
+
+/** @} I2C */
+
+/**
+ * @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,
+/** @cond DEPRECATED */
+ CMD_CLK_PROPERTIES = 9,
+ CMD_CLK_POSSIBLE_PARENTS = 10,
+ CMD_CLK_NUM_POSSIBLE_PARENTS = 11,
+ CMD_CLK_GET_POSSIBLE_PARENT = 12,
+ CMD_CLK_RESET_REFCOUNTS = 13,
+/** @endcond DEPRECATED */
+ 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)
+/**
+ * @brief Protection against rate and parent changes
+ *
+ * #MRQ_CLK command #CMD_CLK_SET_RATE or #MRQ_CLK command #CMD_CLK_SET_PARENT will return
+ * -#BPMP_EACCES.
+ */
+#define BPMP_CLK_RATE_PARENT_CHANGE_DENIED (1U << 30)
+
+/**
+ * @brief Protection against state changes
+ *
+ * #MRQ_CLK command #CMD_CLK_ENABLE or #MRQ_CLK command #CMD_CLK_DISABLE will return
+ * -#BPMP_EACCES.
+ */
+#define BPMP_CLK_STATE_CHANGE_DENIED (1U << 31)
+
+#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;
+
+/** @cond DEPRECATED */
+/** @private */
+struct cmd_clk_properties_request {
+ BPMP_ABI_EMPTY
+} BPMP_ABI_PACKED;
+
+/** @todo flags need to be spelled out here */
+struct cmd_clk_properties_response {
+ uint32_t flags;
+} BPMP_ABI_PACKED;
+
+/** @private */
+struct cmd_clk_possible_parents_request {
+ BPMP_ABI_EMPTY
+} BPMP_ABI_PACKED;
+
+struct cmd_clk_possible_parents_response {
+ uint8_t num_parents;
+ uint8_t reserved[3];
+ uint32_t parent_id[MRQ_CLK_MAX_PARENTS];
+} BPMP_ABI_PACKED;
+
+/** @private */
+struct cmd_clk_num_possible_parents_request {
+ BPMP_ABI_EMPTY
+} BPMP_ABI_PACKED;
+
+struct cmd_clk_num_possible_parents_response {
+ uint8_t num_parents;
+} BPMP_ABI_PACKED;
+
+struct cmd_clk_get_possible_parent_request {
+ uint8_t parent_idx;
+} BPMP_ABI_PACKED;
+
+struct cmd_clk_get_possible_parent_response {
+ uint32_t parent_id;
+} BPMP_ABI_PACKED;
+/** @endcond DEPRECATED */
+
+/** @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 |-
+ * |
+ *
+ */
+
+/** @cond DEPRECATED
+ *
+ * Older versions of firmware also supported following sub-commands:
+ * |CMD_CLK_PROPERTIES |- |
+ * |CMD_CLK_POSSIBLE_PARENTS |- |
+ * |CMD_CLK_NUM_POSSIBLE_PARENTS|- |
+ * |CMD_CLK_GET_POSSIBLE_PARENT |clk_get_possible_parent|
+ * |CMD_CLK_RESET_REFCOUNTS |- |
+ *
+ * @endcond DEPRECATED */
+
+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;
+ /** @cond DEPRECATED */
+ /** @private */
+ struct cmd_clk_properties_request clk_properties;
+ /** @private */
+ struct cmd_clk_possible_parents_request clk_possible_parents;
+ /** @private */
+ struct cmd_clk_num_possible_parents_request clk_num_possible_parents;
+ struct cmd_clk_get_possible_parent_request clk_get_possible_parent;
+ /** @endcond DEPRECATED */
+ /** @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 |
+ *
+ */
+
+/** @cond DEPRECATED
+ *
+ * Older versions of firmware also supported following sub-commands:
+ * |CMD_CLK_PROPERTIES |clk_properties |
+ * |CMD_CLK_POSSIBLE_PARENTS |clk_possible_parents |
+ * |CMD_CLK_NUM_POSSIBLE_PARENTS|clk_num_possible_parents|
+ * |CMD_CLK_GET_POSSIBLE_PARENT |clk_get_possible_parents|
+ * |CMD_CLK_RESET_REFCOUNTS |- |
+ *
+ * @endcond DEPRECATED */
+
+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;
+ /** @cond DEPRECATED */
+ struct cmd_clk_properties_response clk_properties;
+ struct cmd_clk_possible_parents_response clk_possible_parents;
+ struct cmd_clk_num_possible_parents_response clk_num_possible_parents;
+ struct cmd_clk_get_possible_parent_response clk_get_possible_parent;
+ /** @endcond DEPRECATED */
+ 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;
+
+/** @} Clocks */
+
+/**
+ * @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
+ * @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
+ *
+ * @cond (bpmp_t194 || bpmp_t186)
+ * @note On T194 and earlier 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.
+ * @endcond (bpmp_t194 || bpmp_t186)
+ *
+ * * 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;
+
+/** @} Powergating */
+
+/**
+ * @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;
+
+/** @} Thermal */
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_OC_STATUS
+ * @brief Query over current status
+ *
+ * * Platforms: T234
+ * @cond bpmp_t234
+ * * Initiators: CCPLEX
+ * * Targets: BPMP
+ * * Request Payload: N/A
+ * * Response Payload: @ref mrq_oc_status_response
+ *
+ * @addtogroup OC_status
+ * @{
+ */
+
+#define OC_STATUS_MAX_SIZE 24U
+
+/*
+ * @brief Response to #MRQ_OC_STATUS
+ *
+ * throt_en: Value for each OC alarm where zero signifies throttle is
+ * disabled, and non-zero throttle is enabled.
+ * event_cnt: Total number of OC events for each OC alarm.
+ *
+ * mrq_response::err is 0 if the operation was successful and
+ * -#BPMP_ENODEV otherwise.
+ */
+struct mrq_oc_status_response {
+ uint8_t throt_en[OC_STATUS_MAX_SIZE];
+ uint32_t event_cnt[OC_STATUS_MAX_SIZE];
+} BPMP_ABI_PACKED;
+
+/** @} OC_status */
+/** @endcond bpmp_t234 */
+
+/**
+ * @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;
+
+/** @} Vhint */
+/** @endcond bpmp_t186 */
+
+/**
+ * @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;
+};
+
+/** @} ABI_info */
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_EMC_DVFS_LATENCY
+ * @brief Query frequency dependent EMC DVFS latency
+ *
+ * * Platforms: T186, T194, T234
+ * * 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;
+
+/** @} EMC */
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_EMC_DVFS_EMCHUB
+ * @brief Query EMC HUB frequencies
+ *
+ * * Platforms: T234 onwards
+ * @cond (bpmp_t234 || bpmp_t239 || bpmp_th500)
+ * * Initiators: CCPLEX
+ * * Targets: BPMP
+ * * Request Payload: N/A
+ * * Response Payload: @ref mrq_emc_dvfs_emchub_response
+ * @addtogroup EMC
+ * @{
+ */
+
+/**
+ * @brief Used by @ref mrq_emc_dvfs_emchub_response
+ */
+struct emc_dvfs_emchub {
+ /** @brief EMC DVFS node frequency in kHz */
+ uint32_t freq;
+ /** @brief EMC HUB frequency in kHz */
+ uint32_t hub_freq;
+} BPMP_ABI_PACKED;
+
+#define EMC_DVFS_EMCHUB_MAX_SIZE EMC_DVFS_LATENCY_MAX_SIZE
+/**
+ * @brief Response to #MRQ_EMC_DVFS_EMCHUB
+ */
+struct mrq_emc_dvfs_emchub_response {
+ /** @brief The number valid entries in #pairs */
+ uint32_t num_pairs;
+ /** @brief EMC DVFS node <frequency, hub frequency> information */
+ struct emc_dvfs_emchub pairs[EMC_DVFS_EMCHUB_MAX_SIZE];
+} BPMP_ABI_PACKED;
+
+/** @} EMC */
+/** @endcond (bpmp_t234 || bpmp_t239 || bpmp_th500) */
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_EMC_DISP_RFL
+ * @brief Set EMC display RFL handshake mode of operations
+ *
+ * * Platforms: T234 onwards
+ * @cond (bpmp_t234 || bpmp_t239 || bpmp_th500)
+ * * Initiators: CCPLEX
+ * * Targets: BPMP
+ * * Request Payload: @ref mrq_emc_disp_rfl_request
+ * * Response Payload: N/A
+ *
+ * @addtogroup EMC
+ * @{
+ */
+
+enum mrq_emc_disp_rfl_mode {
+ /** @brief EMC display RFL handshake disabled */
+ EMC_DISP_RFL_MODE_DISABLED = 0,
+ /** @brief EMC display RFL handshake enabled */
+ EMC_DISP_RFL_MODE_ENABLED = 1,
+};
+
+/**
+ * @ingroup EMC
+ * @brief Request with #MRQ_EMC_DISP_RFL
+ *
+ * Used by the sender of an #MRQ_EMC_DISP_RFL message to
+ * request the mode of EMC display RFL handshake.
+ *
+ * mrq_response::err is
+ * * 0: RFL mode is set successfully
+ * * -#BPMP_EINVAL: invalid mode requested
+ * * -#BPMP_ENOSYS: RFL handshake is not supported
+ * * -#BPMP_EACCES: Permission denied
+ * * -#BPMP_ENODEV: if disp rfl mrq is not supported by BPMP-FW
+ */
+struct mrq_emc_disp_rfl_request {
+ /** @brief EMC display RFL mode (@ref mrq_emc_disp_rfl_mode) */
+ uint32_t mode;
+} BPMP_ABI_PACKED;
+
+/** @} EMC */
+/** @endcond (bpmp_t234 || bpmp_t239 || bpmp_th500) */
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_BWMGR
+ * @brief bwmgr requests
+ *
+ * * Platforms: T234 onwards
+ * @cond (bpmp_t234 || bpmp_t239 || bpmp_th500)
+ * * Initiators: CCPLEX
+ * * Targets: BPMP
+ * * Request Payload: @ref mrq_bwmgr_request
+ * * Response Payload: @ref mrq_bwmgr_response
+ *
+ * @addtogroup BWMGR
+ *
+ * @{
+ */
+
+enum mrq_bwmgr_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_BWMGR_QUERY_ABI = 0,
+
+ /**
+ * @brief Determine dram rate to satisfy iso/niso bw requests
+ *
+ * mrq_response::err is
+ * * 0: calc_rate succeeded.
+ * * -#BPMP_EINVAL: Invalid request parameters.
+ * * -#BPMP_ENOTSUP: Requested bw is not available.
+ */
+ CMD_BWMGR_CALC_RATE = 1
+};
+
+/*
+ * request data for request type CMD_BWMGR_QUERY_ABI
+ *
+ * type: Request type for which to check existence.
+ */
+struct cmd_bwmgr_query_abi_request {
+ uint32_t type;
+} BPMP_ABI_PACKED;
+
+/**
+ * @brief Used by @ref cmd_bwmgr_calc_rate_request
+ */
+struct iso_req {
+ /* @brief bwmgr client ID @ref bpmp_bwmgr_ids */
+ uint32_t id;
+ /* @brief bw in kBps requested by client */
+ uint32_t iso_bw;
+} BPMP_ABI_PACKED;
+
+#define MAX_ISO_CLIENTS 13U
+/*
+ * request data for request type CMD_BWMGR_CALC_RATE
+ */
+struct cmd_bwmgr_calc_rate_request {
+ /* @brief total bw in kBps requested by all niso clients */
+ uint32_t sum_niso_bw;
+ /* @brief The number of iso clients */
+ uint32_t num_iso_clients;
+ /* @brief iso_req <id, iso_bw> information */
+ struct iso_req isobw_reqs[MAX_ISO_CLIENTS];
+} BPMP_ABI_PACKED;
+
+/*
+ * response data for request type CMD_BWMGR_CALC_RATE
+ *
+ * iso_rate_min: min dram data clk rate in kHz to satisfy all iso bw reqs
+ * total_rate_min: min dram data clk rate in kHz to satisfy all bw reqs
+ */
+struct cmd_bwmgr_calc_rate_response {
+ uint32_t iso_rate_min;
+ uint32_t total_rate_min;
+} BPMP_ABI_PACKED;
+
+/*
+ * @brief Request with #MRQ_BWMGR
+ *
+ *
+ * |sub-command |payload |
+ * |----------------------------|------------------------------|
+ * |CMD_BWMGR_QUERY_ABI | cmd_bwmgr_query_abi_request |
+ * |CMD_BWMGR_CALC_RATE | cmd_bwmgr_calc_rate_request |
+ *
+ */
+struct mrq_bwmgr_request {
+ uint32_t cmd;
+ union {
+ struct cmd_bwmgr_query_abi_request query_abi;
+ struct cmd_bwmgr_calc_rate_request bwmgr_rate_req;
+ } BPMP_UNION_ANON;
+} BPMP_ABI_PACKED;
+
+/*
+ * @brief Response to MRQ_BWMGR
+ *
+ * |sub-command |payload |
+ * |----------------------------|------------------------------|
+ * |CMD_BWMGR_CALC_RATE | cmd_bwmgr_calc_rate_response |
+ */
+struct mrq_bwmgr_response {
+ union {
+ struct cmd_bwmgr_calc_rate_response bwmgr_rate_resp;
+ } BPMP_UNION_ANON;
+} BPMP_ABI_PACKED;
+
+/** @} BWMGR */
+/** @endcond (bpmp_t234 || bpmp_t239 || bpmp_th500) */
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_BWMGR_INT
+ * @brief bpmp-integrated bwmgr requests
+ *
+ * * Platforms: T234 onwards
+ * @cond (bpmp_t234 || bpmp_t239 || bpmp_th500)
+ * * Initiators: CCPLEX
+ * * Targets: BPMP
+ * * Request Payload: @ref mrq_bwmgr_int_request
+ * * Response Payload: @ref mrq_bwmgr_int_response
+ *
+ * @addtogroup BWMGR_INT
+ * @{
+ */
+
+enum mrq_bwmgr_int_cmd {
+ /**
+ * @brief Check whether the BPMP-FW supports the specified
+ * request type
+ *
+ * mrq_response::err is 0 if the specified request is
+ * supported and -#BPMP_ENODEV otherwise.
+ */
+ CMD_BWMGR_INT_QUERY_ABI = 1,
+
+ /**
+ * @brief Determine and set dram rate to satisfy iso/niso bw request
+ *
+ * mrq_response::err is
+ * * 0: request succeeded.
+ * * -#BPMP_EINVAL: Invalid request parameters.
+ * set_frequency in @ref cmd_bwmgr_int_calc_and_set_response
+ * will not be set.
+ * * -#BPMP_ENOTSUP: Requested bw is not available.
+ * set_frequency in @ref cmd_bwmgr_int_calc_and_set_response
+ * will be current dram-clk rate.
+ */
+ CMD_BWMGR_INT_CALC_AND_SET = 2,
+
+ /**
+ * @brief Set a max DRAM frequency for the bandwidth-manager
+ *
+ * mrq_response::err is
+ * * 0: request succeeded.
+ * * -#BPMP_ENOTSUP: Requested cap frequency is not possible.
+ */
+ CMD_BWMGR_INT_CAP_SET = 3
+};
+
+/*
+ * request structure for request type CMD_BWMGR_QUERY_ABI
+ *
+ * type: Request type for which to check existence.
+ */
+struct cmd_bwmgr_int_query_abi_request {
+ /* @brief request type determined by @ref mrq_bwmgr_int_cmd */
+ uint32_t type;
+} BPMP_ABI_PACKED;
+
+/**
+ * @defgroup bwmgr_int_unit_type BWMGR_INT floor unit-types
+ * @addtogroup bwmgr_int_unit_type
+ * @{
+ */
+/** @brief kilobytes per second unit-type */
+#define BWMGR_INT_UNIT_KBPS 0U
+/** @brief kilohertz unit-type */
+#define BWMGR_INT_UNIT_KHZ 1U
+
+/** @} bwmgr_int_unit_type */
+
+/*
+ * request data for request type CMD_BWMGR_INT_CALC_AND_SET
+ */
+struct cmd_bwmgr_int_calc_and_set_request {
+ /* @brief bwmgr client ID @ref bpmp_bwmgr_ids */
+ uint32_t client_id;
+ /* @brief average niso bw usage in kBps requested by client. */
+ uint32_t niso_bw;
+ /*
+ * @brief average iso bw usage in kBps requested by client.
+ * Value is ignored if client is niso. Determined by client_id.
+ */
+ uint32_t iso_bw;
+ /*
+ * @brief memory clock floor requested by client.
+ * Unit determined by floor_unit.
+ */
+ uint32_t mc_floor;
+ /*
+ * @brief toggle to determine the unit-type of floor value.
+ * See @ref bwmgr_int_unit_type definitions for unit-type mappings.
+ */
+ uint8_t floor_unit;
+} BPMP_ABI_PACKED;
+
+struct cmd_bwmgr_int_cap_set_request {
+ /* @brief requested cap frequency in Hz. */
+ uint64_t rate;
+} BPMP_ABI_PACKED;
+
+/*
+ * response data for request type CMD_BWMGR_CALC_AND_SET
+ */
+struct cmd_bwmgr_int_calc_and_set_response {
+ /* @brief current set memory clock frequency in Hz */
+ uint64_t rate;
+} BPMP_ABI_PACKED;
+
+/*
+ * @brief Request with #MRQ_BWMGR_INT
+ *
+ *
+ * |sub-command |payload |
+ * |----------------------------|-----------------------------------|
+ * |CMD_BWMGR_INT_QUERY_ABI | cmd_bwmgr_int_query_abi_request |
+ * |CMD_BWMGR_INT_CALC_AND_SET | cmd_bwmgr_int_calc_and_set_request|
+ * |CMD_BWMGR_INT_CAP_SET | cmd_bwmgr_int_cap_set_request |
+ *
+ */
+struct mrq_bwmgr_int_request {
+ uint32_t cmd;
+ union {
+ struct cmd_bwmgr_int_query_abi_request query_abi;
+ struct cmd_bwmgr_int_calc_and_set_request bwmgr_calc_set_req;
+ struct cmd_bwmgr_int_cap_set_request bwmgr_cap_set_req;
+ } BPMP_UNION_ANON;
+} BPMP_ABI_PACKED;
+
+/*
+ * @brief Response to MRQ_BWMGR_INT
+ *
+ * |sub-command |payload |
+ * |----------------------------|---------------------------------------|
+ * |CMD_BWMGR_INT_CALC_AND_SET | cmd_bwmgr_int_calc_and_set_response |
+ */
+struct mrq_bwmgr_int_response {
+ union {
+ struct cmd_bwmgr_int_calc_and_set_response bwmgr_calc_set_resp;
+ } BPMP_UNION_ANON;
+} BPMP_ABI_PACKED;
+
+/** @} BWMGR_INT */
+/** @endcond (bpmp_t234 || bpmp_t239 || bpmp_th500) */
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_ISO_CLIENT
+ * @brief ISO client requests
+ *
+ * * Platforms: T234 onwards
+ * @cond (bpmp_t234 || bpmp_t239 || bpmp_th500)
+ * * Initiators: CCPLEX
+ * * Targets: BPMP
+ * * Request Payload: @ref mrq_iso_client_request
+ * * Response Payload: @ref mrq_iso_client_response
+ *
+ * @addtogroup ISO_CLIENT
+ * @{
+ */
+
+enum mrq_iso_client_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_ISO_CLIENT_QUERY_ABI = 0,
+
+ /*
+ * @brief check for legal LA for the iso client. Without programming
+ * LA MC registers, calculate and ensure that legal LA is possible for
+ * iso bw requested by the ISO client.
+ *
+ * mrq_response::err is
+ * * 0: check la succeeded.
+ * * -#BPMP_EINVAL: Invalid request parameters.
+ * * -#BPMP_EFAULT: Legal LA is not possible for client requested iso_bw
+ */
+ CMD_ISO_CLIENT_CALCULATE_LA = 1,
+
+ /*
+ * @brief set LA for the iso client. Calculate and program the LA/PTSA
+ * MC registers corresponding to the client making bw request
+ *
+ * mrq_response::err is
+ * * 0: set la succeeded.
+ * * -#BPMP_EINVAL: Invalid request parameters.
+ * * -#BPMP_EFAULT: Failed to calculate or program MC registers.
+ */
+ CMD_ISO_CLIENT_SET_LA = 2,
+
+ /*
+ * @brief Get max possible bw for iso client
+ *
+ * mrq_response::err is
+ * * 0: get_max_bw succeeded.
+ * * -#BPMP_EINVAL: Invalid request parameters.
+ */
+ CMD_ISO_CLIENT_GET_MAX_BW = 3
+};
+
+/*
+ * request data for request type CMD_ISO_CLIENT_QUERY_ABI
+ *
+ * type: Request type for which to check existence.
+ */
+struct cmd_iso_client_query_abi_request {
+ uint32_t type;
+} BPMP_ABI_PACKED;
+
+/*
+ * request data for request type CMD_ISO_CLIENT_CALCULATE_LA
+ *
+ * id: client ID in @ref bpmp_bwmgr_ids
+ * bw: bw requested in kBps by client ID.
+ * init_bw_floor: initial dram_bw_floor in kBps passed by client ID.
+ * ISO client will perform mempool allocation and DVFS buffering based
+ * on this dram_bw_floor.
+ */
+struct cmd_iso_client_calculate_la_request {
+ uint32_t id;
+ uint32_t bw;
+ uint32_t init_bw_floor;
+} BPMP_ABI_PACKED;
+
+/*
+ * request data for request type CMD_ISO_CLIENT_SET_LA
+ *
+ * id: client ID in @ref bpmp_bwmgr_ids
+ * bw: bw requested in kBps by client ID.
+ * final_bw_floor: final dram_bw_floor in kBps.
+ * Sometimes the initial dram_bw_floor passed by ISO client may need to be
+ * updated by considering higher dram freq's. This is the final dram_bw_floor
+ * used to calculate and program MC registers.
+ */
+struct cmd_iso_client_set_la_request {
+ uint32_t id;
+ uint32_t bw;
+ uint32_t final_bw_floor;
+} BPMP_ABI_PACKED;
+
+/*
+ * request data for request type CMD_ISO_CLIENT_GET_MAX_BW
+ *
+ * id: client ID in @ref bpmp_bwmgr_ids
+ */
+struct cmd_iso_client_get_max_bw_request {
+ uint32_t id;
+} BPMP_ABI_PACKED;
+
+/*
+ * response data for request type CMD_ISO_CLIENT_CALCULATE_LA
+ *
+ * la_rate_floor: minimum dram_rate_floor in kHz at which a legal la is possible
+ * iso_client_only_rate: Minimum dram freq in kHz required to satisfy this clients
+ * iso bw request, assuming all other iso clients are inactive
+ */
+struct cmd_iso_client_calculate_la_response {
+ uint32_t la_rate_floor;
+ uint32_t iso_client_only_rate;
+} BPMP_ABI_PACKED;
+
+/**
+ * @brief Used by @ref cmd_iso_client_get_max_bw_response
+ */
+struct iso_max_bw {
+ /* @brief dram frequency in kHz */
+ uint32_t freq;
+ /* @brief max possible iso-bw in kBps */
+ uint32_t iso_bw;
+} BPMP_ABI_PACKED;
+
+#define ISO_MAX_BW_MAX_SIZE 14U
+/*
+ * response data for request type CMD_ISO_CLIENT_GET_MAX_BW
+ */
+struct cmd_iso_client_get_max_bw_response {
+ /* @brief The number valid entries in iso_max_bw pairs */
+ uint32_t num_pairs;
+ /* @brief max ISOBW <dram freq, max bw> information */
+ struct iso_max_bw pairs[ISO_MAX_BW_MAX_SIZE];
+} BPMP_ABI_PACKED;
+
+/**
+ * @brief Request with #MRQ_ISO_CLIENT
+ *
+ * Used by the sender of an #MRQ_ISO_CLIENT message.
+ *
+ * |sub-command |payload |
+ * |------------------------------------ |----------------------------------------|
+ * |CMD_ISO_CLIENT_QUERY_ABI |cmd_iso_client_query_abi_request |
+ * |CMD_ISO_CLIENT_CALCULATE_LA |cmd_iso_client_calculate_la_request |
+ * |CMD_ISO_CLIENT_SET_LA |cmd_iso_client_set_la_request |
+ * |CMD_ISO_CLIENT_GET_MAX_BW |cmd_iso_client_get_max_bw_request |
+ *
+ */
+
+struct mrq_iso_client_request {
+ /* Type of request. Values listed in enum mrq_iso_client_cmd */
+ uint32_t cmd;
+ union {
+ struct cmd_iso_client_query_abi_request query_abi;
+ struct cmd_iso_client_calculate_la_request calculate_la_req;
+ struct cmd_iso_client_set_la_request set_la_req;
+ struct cmd_iso_client_get_max_bw_request max_isobw_req;
+ } BPMP_UNION_ANON;
+} BPMP_ABI_PACKED;
+
+/**
+ * @brief Response to MRQ_ISO_CLIENT
+ *
+ * Each sub-command supported by @ref mrq_iso_client_request may return
+ * sub-command-specific data. Some do and some do not as indicated in
+ * the following table
+ *
+ * |sub-command |payload |
+ * |---------------------------- |------------------------------------|
+ * |CMD_ISO_CLIENT_CALCULATE_LA |cmd_iso_client_calculate_la_response|
+ * |CMD_ISO_CLIENT_SET_LA |N/A |
+ * |CMD_ISO_CLIENT_GET_MAX_BW |cmd_iso_client_get_max_bw_response |
+ *
+ */
+
+struct mrq_iso_client_response {
+ union {
+ struct cmd_iso_client_calculate_la_response calculate_la_resp;
+ struct cmd_iso_client_get_max_bw_response max_isobw_resp;
+ } BPMP_UNION_ANON;
+} BPMP_ABI_PACKED;
+
+/** @} ISO_CLIENT */
+/** @endcond (bpmp_t234 || bpmp_t239 || bpmp_th500) */
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_CPU_NDIV_LIMITS
+ * @brief CPU freq. limits in ndiv
+ *
+ * * Platforms: T194 onwards
+ * @cond (bpmp_t194 || bpmp_t234 || bpmp_t239 || bpmp_th500)
+ * * 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;
+
+/** @} CPU */
+/** @endcond (bpmp_t194 || bpmp_t234 || bpmp_t239 || bpmp_th500) */
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_CPU_AUTO_CC3
+ * @brief Query CPU cluster auto-CC3 configuration
+ *
+ * * Platforms: T194
+ * @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;
+
+/** @} CC3 */
+/** @endcond bpmp_t194 */
+
+/**
+ * @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;
+
+/** @} RingbufConsole */
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_STRAP
+ * @brief Set a strap value controlled by BPMP
+ *
+ * * Platforms: T194 onwards
+ * @cond (bpmp_t194 || bpmp_t234 || bpmp_t239 || bpmp_th500)
+ * * 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_Identifiers */
+ uint32_t id;
+ /** @brief Desired value for strap (if cmd is #STRAP_SET) */
+ uint32_t value;
+} BPMP_ABI_PACKED;
+
+/** @} Strap */
+/** @endcond (bpmp_t194 || bpmp_t234 || bpmp_t239 || bpmp_th500) */
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_UPHY
+ * @brief Perform a UPHY operation
+ *
+ * * Platforms: T194 onwards
+ * @cond (bpmp_t194 || bpmp_t234 || bpmp_t239 || bpmp_th500)
+ * * 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_DISPLAY_PORT_INIT = 6,
+ CMD_UPHY_DISPLAY_PORT_OFF = 7,
+ CMD_UPHY_XUSB_DYN_LANES_RESTORE = 8,
+ 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, T194 valid: 0, 4, 5; T234 valid: 5, 6, 7, 10; T239 valid: 0 */
+ uint8_t ep_controller;
+} BPMP_ABI_PACKED;
+
+struct cmd_uphy_pcie_controller_state_request {
+ /** @brief PCIE controller number, T194 valid: 0-4; T234 valid: 0-10; T239 valid: 0-3 */
+ uint8_t pcie_controller;
+ uint8_t enable;
+} BPMP_ABI_PACKED;
+
+struct cmd_uphy_ep_controller_pll_off_request {
+ /** @brief EP controller number, T194 valid: 0, 4, 5; T234 valid: 5, 6, 7, 10; T239 valid: 0 */
+ uint8_t ep_controller;
+} BPMP_ABI_PACKED;
+
+struct cmd_uphy_display_port_init_request {
+ /** @brief DisplayPort link rate, T239 valid: 1620, 2700, 5400, 8100, 2160, 2430, 3240, 4320, 6750 */
+ uint16_t link_rate;
+ /** @brief 1: lane 0; 2: lane 1; 3: lane 0 and 1 */
+ uint16_t lanes_bitmap;
+} BPMP_ABI_PACKED;
+
+struct cmd_uphy_xusb_dyn_lanes_restore_request {
+ /** @brief 1: lane 0; 2: lane 1; 3: lane 0 and 1 */
+ uint16_t lanes_bitmap;
+} BPMP_ABI_PACKED;
+
+/**
+ * @ingroup UPHY
+ * @brief Request with #MRQ_UPHY
+ *
+ * Used by the sender of an #MRQ_UPHY message to control UPHY.
+ * The uphy_request is split into several sub-commands. CMD_UPHY_PCIE_LANE_MARGIN_STATUS
+ * requires no additional data. Others have a sub-command specific payload. Below table
+ * shows sub-commands with their corresponding payload data.
+ *
+ * |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 |
+ * |CMD_UPHY_PCIE_DISPLAY_PORT_INIT |cmd_uphy_display_port_init_request |
+ * |CMD_UPHY_PCIE_DISPLAY_PORT_OFF | |
+ * |CMD_UPHY_XUSB_DYN_LANES_RESTORE |cmd_uphy_xusb_dyn_lanes_restore_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;
+ struct cmd_uphy_display_port_init_request display_port_init;
+ struct cmd_uphy_xusb_dyn_lanes_restore_request xusb_dyn_lanes_restore;
+ } 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;
+
+/** @} UPHY */
+/** @endcond (bpmp_t194 || bpmp_t234 || bpmp_t239 || bpmp_th500) */
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_FMON
+ * @brief Perform a frequency monitor configuration operations
+ *
+ * * Platforms: T194 onwards
+ * @cond (bpmp_t194 || bpmp_t234 || bpmp_t239 || bpmp_th500)
+ * * Initiators: CCPLEX
+ * * Targets: BPMP
+ * * Request Payload: @ref mrq_fmon_request
+ * * Response Payload: @ref mrq_fmon_response
+ * @endcond (bpmp_t194 || bpmp_t234 || bpmp_t239 || bpmp_th500)
+ *
+ * @addtogroup FMON
+ * @{
+ * @cond (bpmp_t194 || bpmp_t234)
+ */
+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.
+ *
+ * mrq_response::err is 0 if the operation was successful, or @n
+ * -#BPMP_EACCES: FMON access error @n
+ * -#BPMP_EBADCMD if subcommand is not supported @n
+ * -#BPMP_EBADSLT: clamp FMON on cluster with auto-CC3 enabled @n
+ * -#BPMP_EBUSY: fmon is already clamped at different rate @n
+ * -#BPMP_EFAULT: self-diagnostic error @n
+ * -#BPMP_EINVAL: invalid FMON configuration @n
+ * -#BPMP_EOPNOTSUPP: not in production mode @n
+ * -#BPMP_ENODEV: invalid clk_id @n
+ * -#BPMP_ENOENT: no calibration data, uninitialized @n
+ * -#BPMP_ENOTSUP: avfs config not set @n
+ * -#BPMP_ENOSYS: clamp FMON on cluster clock w/ no NAFLL @n
+ * -#BPMP_ETIMEDOUT: operation timed out @n
+ */
+ CMD_FMON_GEAR_CLAMP = 1,
+ /**
+ * @brief Release clamped FMON configuration.
+ *
+ * Allow FMON configuration to follow monitored clock rate
+ * and/or state changes.
+ *
+ * mrq_response::err is 0 if the operation was successful, or @n
+ * -#BPMP_EBADCMD if subcommand is not supported @n
+ * -#BPMP_ENODEV: invalid clk_id @n
+ * -#BPMP_ENOENT: no calibration data, uninitialized @n
+ * -#BPMP_ENOTSUP: avfs config not set @n
+ * -#BPMP_EOPNOTSUPP: not in production mode @n
+ */
+ 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.
+ *
+ * mrq_response::err is 0 if the operation was successful, or @n
+ * -#BPMP_EBADCMD if subcommand is not supported @n
+ * -#BPMP_ENODEV: invalid clk_id @n
+ * -#BPMP_ENOENT: no calibration data, uninitialized @n
+ * -#BPMP_ENOTSUP: avfs config not set @n
+ * -#BPMP_EOPNOTSUPP: not in production mode @n
+ */
+ CMD_FMON_GEAR_GET = 3,
+ /**
+ * @brief Return current status of FMON faults detected by FMON
+ * h/w or s/w since last invocation of this command.
+ * Clears fault status.
+ *
+ * mrq_response::err is 0 if the operation was successful, or @n
+ * -#BPMP_EBADCMD if subcommand is not supported @n
+ * -#BPMP_EINVAL: invalid fault type @n
+ * -#BPMP_ENODEV: invalid clk_id @n
+ * -#BPMP_ENOENT: no calibration data, uninitialized @n
+ * -#BPMP_ENOTSUP: avfs config not set @n
+ * -#BPMP_EOPNOTSUPP: not in production mode @n
+ */
+ CMD_FMON_FAULT_STS_GET = 4,
+};
+
+/**
+ * @cond DEPRECATED
+ * Kept for backward compatibility
+ */
+#define CMD_FMON_NUM 4
+
+/** @endcond DEPRECATED */
+
+/**
+ * @defgroup fmon_fault_type FMON fault type
+ * @addtogroup fmon_fault_type
+ * @{
+ */
+/** @brief All detected FMON faults (h/w or s/w) */
+#define FMON_FAULT_TYPE_ALL 0U
+/** @brief FMON faults detected by h/w */
+#define FMON_FAULT_TYPE_HW 1U
+/** @brief FMON faults detected by s/w */
+#define FMON_FAULT_TYPE_SW 2U
+
+/** @} fmon_fault_type */
+
+
+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;
+
+struct cmd_fmon_fault_sts_get_request {
+ uint32_t fault_type; /**< @ref fmon_fault_type */
+} BPMP_ABI_PACKED;
+
+struct cmd_fmon_fault_sts_get_response {
+ uint32_t fault_sts;
+} 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 |- |
+ * |CMD_FMON_FAULT_STS_GET |fmon_fault_sts_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;
+ struct cmd_fmon_fault_sts_get_request fmon_fault_sts_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 |
+ * |CMD_FMON_FAULT_STS_GET |fmon_fault_sts_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;
+ struct cmd_fmon_fault_sts_get_response fmon_fault_sts_get;
+ } BPMP_UNION_ANON;
+} BPMP_ABI_PACKED;
+
+/** @endcond (bpmp_t194 || bpmp_t234) */
+/** @} FMON */
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_EC
+ * @brief Provide status information on faults reported by Error
+ * Collator (EC) to HSM.
+ *
+ * * Platforms: T194
+ * @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
+ *
+ * @endcond bpmp_t194
+ * @addtogroup EC
+ * @{
+ * @cond bpmp_t194
+ */
+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 DEPRECATED
+ */
+ 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
+
+/** @} bpmp_ec_status_flags */
+
+/**
+ * @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
+
+/** @} bpmp_ec_desc_flags */
+
+/**
+ * |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 fault flags
+ *
+ * @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 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 | 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 | bpmp_ec_ce_swd_ids |
+ * |@ref EC_ERR_TYPE_SW_UNCORRECTABLE | 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 | bpmp_ec_ipath_ids |
+ * |@ref EC_ERR_TYPE_ECC_SEC_INTERNAL | bpmp_ec_ipath_ids |
+ * |@ref EC_ERR_TYPE_ECC_DED_INTERNAL | bpmp_ec_ipath_ids |
+ * |@ref EC_ERR_TYPE_COMPARATOR | bpmp_ec_comparator_ids|
+ * |@ref EC_ERR_TYPE_OTHER_HW_CORRECTABLE | bpmp_ec_misc_hwd_ids |
+ * |@ref EC_ERR_TYPE_OTHER_HW_UNCORRECTABLE | bpmp_ec_misc_hwd_ids |
+ * |@ref EC_ERR_TYPE_PARITY_SRAM | bpmp_clock_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 DEPRECATED */
+
+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 DEPRECATED
+ *
+ * |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 DEPRECATED
+ *
+ * |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 DEPRECATED */
+ struct cmd_ec_status_ex_get_response ec_status_ex_get;
+ } BPMP_UNION_ANON;
+} BPMP_ABI_PACKED;
+
+/** @endcond bpmp_t194 */
+/** @} EC */
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_TELEMETRY
+ * @brief Get address of memory buffer refreshed with recently sampled
+ * telemetry data
+ *
+ * * Platforms: TH500 onwards
+ * @cond bpmp_th500
+ * * Initiators: CCPLEX
+ * * Targets: BPMP
+ * * Request Payload: N/A
+ * * Response Payload: @ref mrq_telemetry_response
+ * @addtogroup Telemetry
+ * @{
+ */
+
+/**
+ * @brief Response to #MRQ_TELEMETRY
+ *
+ * mrq_response::err is
+ * * 0: Telemetry data is available at returned address
+ * * -#BPMP_EACCES: MRQ master is not allowed to request buffer refresh
+ * * -#BPMP_ENAVAIL: Telemetry buffer cannot be refreshed via this MRQ channel
+ * * -#BPMP_ENOTSUP: Telemetry buffer is not supported by BPMP-FW
+ * * -#BPMP_ENODEV: Telemetry mrq is not supported by BPMP-FW
+ */
+struct mrq_telemetry_response {
+ /** @brief Physical address of telemetry data buffer */
+ uint64_t data_buf_addr; /**< see @ref bpmp_telemetry_layout */
+} BPMP_ABI_PACKED;
+
+/** @} Telemetry */
+/** @endcond bpmp_th500 */
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_PWR_LIMIT
+ * @brief Control power limits.
+ *
+ * * Platforms: TH500 onwards
+ * @cond bpmp_th500
+ * * Initiators: Any
+ * * Targets: BPMP
+ * * Request Payload: @ref mrq_pwr_limit_request
+ * * Response Payload: @ref mrq_pwr_limit_response
+ *
+ * @addtogroup Pwrlimit
+ * @{
+ */
+enum mrq_pwr_limit_cmd {
+ /**
+ * @brief Check whether the BPMP-FW supports the specified
+ * command
+ *
+ * mrq_response::err is 0 if the specified request is
+ * supported and -#BPMP_ENODEV otherwise.
+ */
+ CMD_PWR_LIMIT_QUERY_ABI = 0,
+
+ /**
+ * @brief Set power limit
+ *
+ * mrq_response:err is
+ * * 0: Success
+ * * -#BPMP_ENODEV: Pwr limit mrq is not supported by BPMP-FW
+ * * -#BPMP_ENAVAIL: Invalid request parameters
+ * * -#BPMP_EACCES: Request is not accepted
+ */
+ CMD_PWR_LIMIT_SET = 1,
+
+ /**
+ * @brief Get power limit setting
+ *
+ * mrq_response:err is
+ * * 0: Success
+ * * -#BPMP_ENODEV: Pwr limit mrq is not supported by BPMP-FW
+ * * -#BPMP_ENAVAIL: Invalid request parameters
+ */
+ CMD_PWR_LIMIT_GET = 2,
+
+ /**
+ * @brief Get current power cap
+ *
+ * mrq_response:err is
+ * * 0: Success
+ * * -#BPMP_ENODEV: Pwr limit mrq is not supported by BPMP-FW
+ * * -#BPMP_ENAVAIL: Invalid request parameters
+ */
+ CMD_PWR_LIMIT_CURR_CAP = 3,
+};
+
+/**
+ * @defgroup bpmp_pwr_limit_type PWR_LIMIT TYPEs
+ * @{
+ */
+/** @brief Limit value specifies traget cap */
+#define PWR_LIMIT_TYPE_TARGET_CAP 0U
+/** @brief Limit value specifies maximum possible target cap */
+#define PWR_LIMIT_TYPE_BOUND_MAX 1U
+/** @brief Limit value specifies minimum possible target cap */
+#define PWR_LIMIT_TYPE_BOUND_MIN 2U
+/** @brief Number of limit types supported by mrq interface */
+#define PWR_LIMIT_TYPE_NUM 3U
+
+/** @} bpmp_pwr_limit_type */
+
+/**
+ * @brief Request data for #MRQ_PWR_LIMIT command CMD_PWR_LIMIT_QUERY_ABI
+ */
+struct cmd_pwr_limit_query_abi_request {
+ uint32_t cmd_code; /**< @ref mrq_pwr_limit_cmd */
+} BPMP_ABI_PACKED;
+
+/**
+ * @brief Request data for #MRQ_PWR_LIMIT command CMD_PWR_LIMIT_SET
+ *
+ * Set specified limit of specified type from specified source. The success of
+ * the request means that specified value is accepted as input to arbitration
+ * with other sources settings for the same limit of the same type. Zero limit
+ * is ignored by the arbitration (i.e., indicates "no limit set").
+ */
+struct cmd_pwr_limit_set_request {
+ uint32_t limit_id; /**< @ref bpmp_pwr_limit_id */
+ uint32_t limit_src; /**< @ref bpmp_pwr_limit_src */
+ uint32_t limit_type; /**< @ref bpmp_pwr_limit_type */
+ uint32_t limit_setting;
+} BPMP_ABI_PACKED;
+
+/**
+ * @brief Request data for #MRQ_PWR_LIMIT command CMD_PWR_LIMIT_GET
+ *
+ * Get previously set from specified source specified limit value of specified
+ * type.
+ */
+struct cmd_pwr_limit_get_request {
+ uint32_t limit_id; /**< @ref bpmp_pwr_limit_id */
+ uint32_t limit_src; /**< @ref bpmp_pwr_limit_src */
+ uint32_t limit_type; /**< @ref bpmp_pwr_limit_type */
+} BPMP_ABI_PACKED;
+
+/**
+ * @brief Response data for #MRQ_PWR_LIMIT command CMD_PWR_LIMIT_GET
+ */
+struct cmd_pwr_limit_get_response {
+ uint32_t limit_setting;
+} BPMP_ABI_PACKED;
+
+/**
+ * @brief Request data for #MRQ_PWR_LIMIT command CMD_PWR_LIMIT_CURR_CAP
+ *
+ * For specified limit get current power cap aggregated from all sources.
+ */
+struct cmd_pwr_limit_curr_cap_request {
+ uint32_t limit_id; /**< @ref bpmp_pwr_limit_id */
+} BPMP_ABI_PACKED;
+
+/**
+ * @brief Response data for #MRQ_PWR_LIMIT command CMD_PWR_LIMIT_CURR_CAP
+ */
+struct cmd_pwr_limit_curr_cap_response {
+ uint32_t curr_cap;
+} BPMP_ABI_PACKED;
+
+/**
+ * @brief Request with #MRQ_PWR_LIMIT
+ *
+ * |sub-command |payload |
+ * |----------------------------|---------------------------------|
+ * |CMD_PWR_LIMIT_QUERY_ABI | cmd_pwr_limit_query_abi_request |
+ * |CMD_PWR_LIMIT_SET | cmd_pwr_limit_set_request |
+ * |CMD_PWR_LIMIT_GET | cmd_pwr_limit_get_request |
+ * |CMD_PWR_LIMIT_CURR_CAP | cmd_pwr_limit_curr_cap_request |
+ */
+struct mrq_pwr_limit_request {
+ uint32_t cmd;
+ union {
+ struct cmd_pwr_limit_query_abi_request pwr_limit_query_abi_req;
+ struct cmd_pwr_limit_set_request pwr_limit_set_req;
+ struct cmd_pwr_limit_get_request pwr_limit_get_req;
+ struct cmd_pwr_limit_curr_cap_request pwr_limit_curr_cap_req;
+ } BPMP_UNION_ANON;
+} BPMP_ABI_PACKED;
+
+/**
+ * @brief Response to MRQ_PWR_LIMIT
+ *
+ * |sub-command |payload |
+ * |----------------------------|---------------------------------|
+ * |CMD_PWR_LIMIT_QUERY_ABI | - |
+ * |CMD_PWR_LIMIT_SET | - |
+ * |CMD_PWR_LIMIT_GET | cmd_pwr_limit_get_response |
+ * |CMD_PWR_LIMIT_CURR_CAP | cmd_pwr_limit_curr_cap_response |
+ */
+struct mrq_pwr_limit_response {
+ union {
+ struct cmd_pwr_limit_get_response pwr_limit_get_rsp;
+ struct cmd_pwr_limit_curr_cap_response pwr_limit_curr_cap_rsp;
+ } BPMP_UNION_ANON;
+} BPMP_ABI_PACKED;
+
+/** @} PwrLimit */
+/** @endcond bpmp_th500 */
+
+
+/**
+ * @ingroup MRQ_Codes
+ * @def MRQ_GEARS
+ * @brief Get thresholds for NDIV offset switching
+ *
+ * * Platforms: TH500 onwards
+ * @cond bpmp_th500
+ * * Initiators: CCPLEX
+ * * Targets: BPMP
+ * * Request Payload: N/A
+ * * Response Payload: @ref mrq_gears_response
+ * @addtogroup Gears
+ * @{
+ */
+
+/**
+ * @brief Response to #MRQ_GEARS
+ *
+ * Used by the sender of an #MRQ_GEARS message to request thresholds
+ * for NDIV offset switching.
+ *
+ * The mrq_gears_response::ncpu array defines four thresholds in units
+ * of number of online CPUS to be used for choosing between five different
+ * NDIV offset settings for CCPLEX cluster NAFLLs
+ *
+ * 1. If number of online CPUs < ncpu[0] use offset0
+ * 2. If number of online CPUs < ncpu[1] use offset1
+ * 3. If number of online CPUs < ncpu[2] use offset2
+ * 4. If number of online CPUs < ncpu[3] use offset3
+ * 5. If number of online CPUs >= ncpu[3] disable offsetting
+ *
+ * For TH500 mrq_gears_response::ncpu array has four valid entries.
+ *
+ * mrq_response::err is
+ * * 0: gears defined and response data valid
+ * * -#BPMP_ENODEV: MRQ is not supported by BPMP-FW
+ * * -#BPMP_EACCES: Operation not permitted for the MRQ master
+ * * -#BPMP_ENAVAIL: NDIV offsetting is disabled
+ */
+struct mrq_gears_response {
+ /** @brief number of online CPUs for each gear */
+ uint32_t ncpu[16];
+} BPMP_ABI_PACKED;
+
+/** @} Gears */
+/** @endcond bpmp_th500 */
+
+/**
+ * @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 Invalid message */
+#define BPMP_EBADMSG 77
+/** @brief Operation not supported */
+#define BPMP_EOPNOTSUPP 95
+/** @brief Targeted resource not available */
+#define BPMP_ENAVAIL 119
+/** @brief Not supported */
+#define BPMP_ENOTSUP 134
+/** @brief No such device or address */
+#define BPMP_ENXIO 140
+
+/** @} Error_Codes */
+
+#if defined(BPMP_ABI_CHECKS)
+#include "bpmp_abi_checks.h"
+#endif
+
+#endif