diff options
Diffstat (limited to 'include/soc')
| -rw-r--r-- | include/soc/tegra/bpmp-abi.h | 418 | ||||
| -rw-r--r-- | include/soc/tegra/bpmp.h | 12 |
2 files changed, 420 insertions, 10 deletions
diff --git a/include/soc/tegra/bpmp-abi.h b/include/soc/tegra/bpmp-abi.h index 0aaef5960e29..98d8d38b99a1 100644 --- a/include/soc/tegra/bpmp-abi.h +++ b/include/soc/tegra/bpmp-abi.h @@ -81,13 +81,18 @@ * 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. - * - * @todo document the flags */ struct mrq_request { /** @brief MRQ number of the request */ uint32_t mrq; - /** @brief flags for the request */ + /** + * @brief flags providing follow up directions to the receiver + * + * | Bit | Description | + * |-----|--------------------------------------------| + * | 1 | ring the sender's doorbell when responding | + * | 0 | should be 1 | + */ uint32_t flags; } __ABI_PACKED; @@ -99,13 +104,11 @@ struct mrq_request { * remainder of the MRQ response is a payload (immediately following * the mrq_response) whose format depends on the associated * mrq_request::mrq - * - * @todo document the flags */ struct mrq_response { /** @brief error code for the MRQ request itself */ int32_t err; - /** @brief flags for the response */ + /** @brief reserved for future use */ uint32_t flags; } __ABI_PACKED; @@ -147,6 +150,8 @@ struct mrq_response { #define MRQ_ABI_RATCHET 29 #define MRQ_EMC_DVFS_LATENCY 31 #define MRQ_TRACE_ITER 64 +#define MRQ_RINGBUF_CONSOLE 65 +#define MRQ_PG 66 /** @} */ @@ -155,7 +160,7 @@ struct mrq_response { * @brief Maximum MRQ code to be sent by CPU software to * BPMP. Subject to change in future */ -#define MAX_CPU_MRQ_ID 64 +#define MAX_CPU_MRQ_ID 66 /** * @addtogroup MRQ_Payloads Message Payloads @@ -175,6 +180,7 @@ struct mrq_response { * @defgroup Vhint CPU Voltage hint * @defgroup MRQ_Deprecated Deprecated MRQ messages * @defgroup EMC + * @defgroup RingbufConsole * @} */ @@ -637,7 +643,7 @@ struct mrq_debugfs_response { * * Initiators: Any * * Targets: BPMP * * Request Payload: @ref mrq_reset_request - * * Response Payload: N/A + * * Response Payload: @ref mrq_reset_response */ /** @@ -647,6 +653,7 @@ enum mrq_reset_commands { CMD_RESET_ASSERT = 1, CMD_RESET_DEASSERT = 2, CMD_RESET_MODULE = 3, + CMD_RESET_GET_MAX_ID = 4, CMD_RESET_MAX, /* not part of ABI and subject to change */ }; @@ -665,6 +672,38 @@ struct mrq_reset_request { } __ABI_PACKED; /** + * @ingroup Reset + * @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; +} __ABI_PACKED; + +/** + * @ingroup Reset + * @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; + } __UNION_ANON; +} __ABI_PACKED; + +/** * @ingroup MRQ_Codes * @def MRQ_I2C * @brief issue an i2c transaction @@ -812,6 +851,17 @@ enum { }; /** @} */ +/** + * @name MRQ_CLK properties + * Flag bits for cmd_clk_properties_response::flags and + * cmd_clk_get_all_info_response::flags + * @{ + */ +#define BPMP_CLK_HAS_MUX (1 << 0) +#define BPMP_CLK_HAS_SET_RATE (1 << 1) +#define BPMP_CLK_IS_ROOT (1 << 2) +/** @} */ + #define MRQ_CLK_NAME_MAXLEN 40 #define MRQ_CLK_MAX_PARENTS 16 @@ -1010,7 +1060,7 @@ struct mrq_clk_response { * * * Platforms: All * * Initiators: Any - * * Targets: Any + * * Targets: Any except DMCE * * Request Payload: @ref mrq_query_abi_request * * Response Payload: @ref mrq_query_abi_response */ @@ -1030,6 +1080,9 @@ struct mrq_query_abi_request { /** * @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 */ @@ -1080,7 +1133,9 @@ struct mrq_pg_read_state_response { /** * @ingroup MRQ_Codes * @def MRQ_PG_UPDATE_STATE - * @brief modify the power-gating state of a partition + * @brief modify the power-gating state of a partition. In contrast to + * MRQ_PG calls, the operations that change state (on/off) of power + * partition are reference counted. * * * Platforms: T186 * * Initiators: Any @@ -1126,6 +1181,171 @@ struct mrq_pg_update_state_request { /** * @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 + * + * * Platforms: T186 + * * Initiators: Any + * * Targets: BPMP + * * Request Payload: @ref mrq_pg_request + * * Response Payload: @ref mrq_pg_response + * @addtogroup Powergating + * @{ + */ + +/** + * @name MRQ_PG sub-commands + * @{ + */ +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 + +/** + * @brief possible power domain states in + * cmd_pg_set_state_request:state and cmd_pg_get_state_response:state. + * PG_STATE_OFF: power domain is OFF + * PG_STATE_ON: power domain is ON + * PG_STATE_RUNNING: power domain is ON and made into directly usable + * state by turning on the clocks associated with + * the domain + */ +enum pg_states { + PG_STATE_OFF = 0, + PG_STATE_ON = 1, + PG_STATE_RUNNING = 2, +}; + +struct cmd_pg_query_abi_request { + uint32_t type; /* enum mrq_pg_cmd */ +} __ABI_PACKED; + +struct cmd_pg_set_state_request { + uint32_t state; /* enum pg_states */ +} __ABI_PACKED; + +struct cmd_pg_get_state_response { + uint32_t state; /* enum pg_states */ +} __ABI_PACKED; + +struct cmd_pg_get_name_response { + uint8_t name[MRQ_PG_NAME_MAXLEN]; +} __ABI_PACKED; + +struct cmd_pg_get_max_id_response { + uint32_t max_id; +} __ABI_PACKED; + +/** + * @ingroup Powergating + * @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; + } __UNION_ANON; +} __ABI_PACKED; + +/** + * @ingroup Powergating + * @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; + } __UNION_ANON; +} __ABI_PACKED; + +/** + * @ingroup MRQ_Codes * @def MRQ_THERMAL * @brief interact with BPMP thermal framework * @@ -1529,6 +1749,184 @@ struct mrq_trace_iter_request { /** @} */ +/** + * @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; +} __ABI_PACKED; + +/** @private */ +struct cmd_ringbuf_console_query_abi_resp { + EMPTY +} __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; +} __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; +} __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; +} __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; +} __ABI_PACKED; + +/** @private */ +struct cmd_ringbuf_console_get_fifo_req { + EMPTY +} __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; +} __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; + } __UNION_ANON; +} __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; +} __ABI_PACKED; +/** @} */ + /* * 4. Enumerations */ diff --git a/include/soc/tegra/bpmp.h b/include/soc/tegra/bpmp.h index 13dcd44e91bb..9ba65222bd3f 100644 --- a/include/soc/tegra/bpmp.h +++ b/include/soc/tegra/bpmp.h @@ -15,6 +15,7 @@ #define __SOC_TEGRA_BPMP_H #include <linux/mailbox_client.h> +#include <linux/pm_domain.h> #include <linux/reset-controller.h> #include <linux/semaphore.h> #include <linux/types.h> @@ -91,6 +92,8 @@ struct tegra_bpmp { unsigned int num_clocks; struct reset_controller_dev rstc; + + struct genpd_onecell_data genpd; }; struct tegra_bpmp *tegra_bpmp_get(struct device *dev); @@ -138,4 +141,13 @@ static inline int tegra_bpmp_init_resets(struct tegra_bpmp *bpmp) } #endif +#if IS_ENABLED(CONFIG_SOC_TEGRA_POWERGATE_BPMP) +int tegra_bpmp_init_powergates(struct tegra_bpmp *bpmp); +#else +static inline int tegra_bpmp_init_powergates(struct tegra_bpmp *bpmp) +{ + return 0; +} +#endif + #endif /* __SOC_TEGRA_BPMP_H */ |