From 834d0d9f2678170efdcef50960013584000e0a43 Mon Sep 17 00:00:00 2001 From: Joshua Yeong Date: Mon, 13 Oct 2025 23:31:38 +0800 Subject: [PATCH] lib: utils: Add MPXY RPMI mailbox driver for performance Add MPXY RPMI mailbox driver for performance. Signed-off-by: Joshua Yeong Reviewed-by: Rahul Pathak Link: https://lore.kernel.org/r/20251013153138.1574512-4-joshua.yeong@starfivetech.com Signed-off-by: Anup Patel --- include/sbi_utils/mailbox/rpmi_msgprot.h | 118 +++++++++++++++++++++ lib/utils/mpxy/Kconfig | 4 + lib/utils/mpxy/fdt_mpxy_rpmi_performance.c | 91 ++++++++++++++++ lib/utils/mpxy/objects.mk | 3 + platform/generic/configs/defconfig | 1 + 5 files changed, 217 insertions(+) create mode 100644 lib/utils/mpxy/fdt_mpxy_rpmi_performance.c diff --git a/include/sbi_utils/mailbox/rpmi_msgprot.h b/include/sbi_utils/mailbox/rpmi_msgprot.h index 4e915a08..f8b16753 100644 --- a/include/sbi_utils/mailbox/rpmi_msgprot.h +++ b/include/sbi_utils/mailbox/rpmi_msgprot.h @@ -219,6 +219,7 @@ enum rpmi_servicegroup_id { RPMI_SRVGRP_VOLTAGE = 0x00007, RPMI_SRVGRP_CLOCK = 0x0008, RPMI_SRVGRP_DEVICE_POWER = 0x0009, + RPMI_SRVGRP_PERFORMANCE = 0x0000A, RPMI_SRVGRP_ID_MAX_COUNT, /* Reserved range for service groups */ @@ -829,4 +830,121 @@ struct rpmi_dpwr_get_state_resp { u32 state; }; +/** RPMI Performance ServiceGroup Service IDs */ +enum rpmi_performance_service_id { + RPMI_PERF_SRV_ENABLE_NOTIFICATION = 0x01, + RPMI_PERF_SRV_GET_NUM_DOMAINS = 0x02, + RPMI_PERF_SRV_GET_ATTRIBUTES = 0x03, + RPMI_PERF_SRV_GET_SUPPORTED_LEVELS = 0x04, + RPMI_PERF_SRV_GET_LEVEL = 0x05, + RPMI_PERF_SRV_SET_LEVEL = 0x06, + RPMI_PERF_SRV_GET_LIMIT = 0x07, + RPMI_PERF_SRV_SET_LIMIT = 0x08, + RPMI_PERF_SRV_GET_FAST_CHANNEL_REGION = 0x09, + RPMI_PERF_SRV_GET_FAST_CHANNEL_ATTRIBUTES = 0x0A, + RPMI_PERF_SRV_MAX_COUNT, +}; + +struct rpmi_perf_get_num_domain_resp { + s32 status; + u32 num_domains; +}; + +struct rpmi_perf_get_attrs_req { + u32 domain_id; +}; + +struct rpmi_perf_get_attrs_resp { + s32 status; + u32 flags; + u32 num_level; + u32 latency; + u8 name[16]; +}; + +struct rpmi_perf_get_supported_level_req { + u32 domain_id; + u32 perf_level_index; +}; + +struct rpmi_perf_domain_level { + u32 level_index; + u32 opp_level; + u32 power_cost_uw; + u32 transition_latency_us; +}; + +struct rpmi_perf_get_supported_level_resp { + s32 status; + u32 reserve; + u32 remaining; + u32 returned; + struct rpmi_perf_domain_level level[0]; +}; + +struct rpmi_perf_get_level_req { + u32 domain_id; +}; + +struct rpmi_perf_get_level_resp { + s32 status; + u32 level_index; +}; + +struct rpmi_perf_set_level_req { + u32 domain_id; + u32 level_index; +}; + +struct rpmi_perf_set_level_resp { + s32 status; +}; + +struct rpmi_perf_get_limit_req { + u32 domain_id; +}; + +struct rpmi_perf_get_limit_resp { + s32 status; + u32 level_index_max; + u32 level_index_min; +}; + +struct rpmi_perf_set_limit_req { + u32 domain_id; + u32 level_index_max; + u32 level_index_min; +}; + +struct rpmi_perf_set_limit_resp { + s32 status; +}; + +struct rpmi_perf_get_fast_chn_region_resp { + s32 status; + u32 region_phy_addr_low; + u32 region_phy_addr_high; + u32 region_size_low; + u32 region_size_high; +}; + +struct rpmi_perf_get_fast_chn_attr_req { + u32 domain_id; + u32 service_id; +}; + +struct rpmi_perf_get_fast_chn_attr_resp { + s32 status; + u32 flags; + u32 region_offset_low; + u32 region_offset_high; + u32 region_size; + u32 db_addr_low; + u32 db_addr_high; + u32 db_id_low; + u32 db_id_high; + u32 db_perserved_low; + u32 db_perserved_high; +}; + #endif /* !__RPMI_MSGPROT_H__ */ diff --git a/lib/utils/mpxy/Kconfig b/lib/utils/mpxy/Kconfig index 25288671..507b8371 100644 --- a/lib/utils/mpxy/Kconfig +++ b/lib/utils/mpxy/Kconfig @@ -30,6 +30,10 @@ config FDT_MPXY_RPMI_DEVICE_POWER bool "MPXY driver for RPMI device power service group" default n +config FDT_MPXY_RPMI_PERFORMANCE + bool "MPXY driver for RPMI performance service group" + default n + endif endmenu diff --git a/lib/utils/mpxy/fdt_mpxy_rpmi_performance.c b/lib/utils/mpxy/fdt_mpxy_rpmi_performance.c new file mode 100644 index 00000000..759b3aed --- /dev/null +++ b/lib/utils/mpxy/fdt_mpxy_rpmi_performance.c @@ -0,0 +1,91 @@ +#include + +static struct mpxy_rpmi_service_data performance_services[] = { +{ + .id = RPMI_PERF_SRV_ENABLE_NOTIFICATION, + .min_tx_len = sizeof(struct rpmi_enable_notification_req), + .max_tx_len = sizeof(struct rpmi_enable_notification_req), + .min_rx_len = sizeof(struct rpmi_enable_notification_resp), + .max_rx_len = sizeof(struct rpmi_enable_notification_resp), +}, +{ + .id = RPMI_PERF_SRV_GET_NUM_DOMAINS, + .min_tx_len = 0, + .max_tx_len = 0, + .min_rx_len = sizeof(struct rpmi_perf_get_num_domain_resp), + .max_rx_len = sizeof(struct rpmi_perf_get_num_domain_resp), +}, +{ + .id = RPMI_PERF_SRV_GET_ATTRIBUTES, + .min_tx_len = sizeof(struct rpmi_perf_get_attrs_req), + .max_tx_len = sizeof(struct rpmi_perf_get_attrs_req), + .min_rx_len = sizeof(struct rpmi_perf_get_attrs_resp), + .max_rx_len = sizeof(struct rpmi_perf_get_attrs_resp), +}, +{ + .id = RPMI_PERF_SRV_GET_SUPPORTED_LEVELS, + .min_tx_len = sizeof(struct rpmi_perf_get_supported_level_req), + .max_tx_len = sizeof(struct rpmi_perf_get_supported_level_req), + .min_rx_len = sizeof(struct rpmi_perf_get_supported_level_resp), + .max_rx_len = -1U, +}, +{ + .id = RPMI_PERF_SRV_GET_LEVEL, + .min_tx_len = sizeof(struct rpmi_perf_get_level_req), + .max_tx_len = sizeof(struct rpmi_perf_get_level_req), + .min_rx_len = sizeof(struct rpmi_perf_get_level_resp), + .max_rx_len = sizeof(struct rpmi_perf_get_level_resp), +}, +{ + .id = RPMI_PERF_SRV_SET_LEVEL, + .min_tx_len = sizeof(struct rpmi_perf_set_level_req), + .max_tx_len = sizeof(struct rpmi_perf_set_level_req), + .min_rx_len = sizeof(struct rpmi_perf_set_level_resp), + .max_rx_len = sizeof(struct rpmi_perf_set_level_resp), +}, +{ + .id = RPMI_PERF_SRV_GET_LIMIT, + .min_tx_len = sizeof(struct rpmi_perf_get_limit_req), + .max_tx_len = sizeof(struct rpmi_perf_get_limit_req), + .min_rx_len = sizeof(struct rpmi_perf_get_limit_resp), + .max_rx_len = sizeof(struct rpmi_perf_get_limit_resp), +}, +{ + .id = RPMI_PERF_SRV_SET_LIMIT, + .min_tx_len = sizeof(struct rpmi_perf_set_limit_req), + .max_tx_len = sizeof(struct rpmi_perf_set_limit_req), + .min_rx_len = sizeof(struct rpmi_perf_set_limit_resp), + .max_rx_len = sizeof(struct rpmi_perf_set_limit_resp), +}, +{ + .id = RPMI_PERF_SRV_GET_FAST_CHANNEL_REGION, + .min_tx_len = 0, + .max_tx_len = 0, + .min_rx_len = sizeof(struct rpmi_perf_get_fast_chn_region_resp), + .max_rx_len = sizeof(struct rpmi_perf_get_fast_chn_region_resp), +}, +{ + .id = RPMI_PERF_SRV_GET_FAST_CHANNEL_ATTRIBUTES, + .min_tx_len = sizeof(struct rpmi_perf_get_fast_chn_attr_req), + .max_tx_len = sizeof(struct rpmi_perf_get_fast_chn_attr_req), + .min_rx_len = sizeof(struct rpmi_perf_get_fast_chn_attr_resp), + .max_rx_len = sizeof(struct rpmi_perf_get_fast_chn_attr_resp), +}, +}; + +static const struct mpxy_rpmi_mbox_data performance_data = { + .servicegrp_id = RPMI_SRVGRP_PERFORMANCE , + .num_services = RPMI_PERF_SRV_MAX_COUNT, + .service_data = performance_services, +}; + +static const struct fdt_match performance_match[] = { + { .compatible = "riscv,rpmi-mpxy-performance", .data = &performance_data }, + { }, +}; + +const struct fdt_driver fdt_mpxy_rpmi_performance = { + .experimental = true, + .match_table = performance_match, + .init = mpxy_rpmi_mbox_init, +}; diff --git a/lib/utils/mpxy/objects.mk b/lib/utils/mpxy/objects.mk index 45b3281b..bbc998af 100644 --- a/lib/utils/mpxy/objects.mk +++ b/lib/utils/mpxy/objects.mk @@ -15,6 +15,9 @@ libsbiutils-objs-$(CONFIG_FDT_MPXY_RPMI_MBOX) += mpxy/fdt_mpxy_rpmi_mbox.o carray-fdt_mpxy_drivers-$(CONFIG_FDT_MPXY_RPMI_CLOCK) += fdt_mpxy_rpmi_clock libsbiutils-objs-$(CONFIG_FDT_MPXY_RPMI_CLOCK) += mpxy/fdt_mpxy_rpmi_clock.o +carray-fdt_mpxy_drivers-$(CONFIG_FDT_MPXY_RPMI_PERFORMANCE) += fdt_mpxy_rpmi_performance +libsbiutils-objs-$(CONFIG_FDT_MPXY_RPMI_PERFORMANCE) += mpxy/fdt_mpxy_rpmi_performance.o + carray-fdt_mpxy_drivers-$(CONFIG_FDT_MPXY_RPMI_SYSMSI) += fdt_mpxy_rpmi_sysmsi libsbiutils-objs-$(CONFIG_FDT_MPXY_RPMI_SYSMSI) += mpxy/fdt_mpxy_rpmi_sysmsi.o diff --git a/platform/generic/configs/defconfig b/platform/generic/configs/defconfig index 92dd9e68..9e040ac3 100644 --- a/platform/generic/configs/defconfig +++ b/platform/generic/configs/defconfig @@ -66,4 +66,5 @@ CONFIG_FDT_MPXY_RPMI_MBOX=y CONFIG_FDT_MPXY_RPMI_CLOCK=y CONFIG_FDT_MPXY_RPMI_VOLTAGE=y CONFIG_FDT_MPXY_RPMI_DEVICE_POWER=y +CONFIG_FDT_MPXY_RPMI_PERFORMANCE=y CONFIG_FDT_MPXY_RPMI_SYSMSI=y