[PATCH 3/3] lib: utils: Add MPXY RPMI mailbox driver for performance
Joshua Yeong
joshua.yeong at starfivetech.com
Mon Oct 13 08:31:38 PDT 2025
Add MPXY RPMI mailbox driver for performance.
Signed-off-by: Joshua Yeong <joshua.yeong at starfivetech.com>
---
include/sbi_utils/mailbox/rpmi_msgprot.h | 118 +++++++++++++++++++++
lib/utils/mpxy/Kconfig | 4 +
lib/utils/mpxy/fdt_mpxy_rpmi_performance.c | 90 ++++++++++++++++
lib/utils/mpxy/objects.mk | 3 +
platform/generic/configs/defconfig | 1 +
5 files changed, 216 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..f4f18831
--- /dev/null
+++ b/lib/utils/mpxy/fdt_mpxy_rpmi_performance.c
@@ -0,0 +1,90 @@
+#include <sbi_utils/mpxy/fdt_mpxy_rpmi_mbox.h>
+
+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 = {
+ .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 5e819b3b..387ce833 100644
--- a/platform/generic/configs/defconfig
+++ b/platform/generic/configs/defconfig
@@ -61,4 +61,5 @@ 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
--
2.43.0
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