random-mirrors/opensbi
1
0
Fork 0
mirror of https://github.com/riscv-software-src/opensbi synced 2025-11-08 07:50:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

lib: utils: Add MPXY RPMI mailbox driver for device power

Browse Source 
Add MPXY RPMI mailbox driver for device power.

Signed-off-by: Joshua Yeong <joshua.yeong@starfivetech.com>
Reviewed-by: Rahul Pathak <rpathak@ventanamicro.com>
Link: https://lore.kernel.org/r/20251013153138.1574512-3-joshua.yeong@starfivetech.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Joshua Yeong 2025-10-13 23:31:37 +08:00 committed by Anup Patel
parent fa911ebe72
commit a28e51016e
5 changed files with 109 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
include/sbi_utils/mailbox/rpmi_msgprot.h
View File

@ -218,6 +218,7 @@ enum rpmi_servicegroup_id {
RPMI_SRVGRP_CPPC = 0x0006,
RPMI_SRVGRP_VOLTAGE = 0x00007,
RPMI_SRVGRP_CLOCK = 0x0008,
RPMI_SRVGRP_DEVICE_POWER = 0x0009,
RPMI_SRVGRP_ID_MAX_COUNT,
/* Reserved range for service groups */
@ -784,4 +785,48 @@ struct rpmi_clock_get_rate_resp {
u32 clock_rate_high;
};
/** RPMI Device Power ServiceGroup Service IDs */
enum rpmi_dpwr_service_id {
RPMI_DPWR_SRV_ENABLE_NOTIFICATION = 0x01,
RPMI_DPWR_SRV_GET_NUM_DOMAINS = 0x02,
RPMI_DPWR_SRV_GET_ATTRIBUTES = 0x03,
RPMI_DPWR_SRV_SET_STATE = 0x04,
RPMI_DPWR_SRV_GET_STATE = 0x05,
RPMI_DPWR_SRV_MAX_COUNT,
};
struct rpmi_dpwr_get_num_domain_resp {
s32 status;
u32 num_domain;
};
struct rpmi_dpwr_get_attrs_req {
u32 domain_id;
};
struct rpmi_dpwr_get_attrs_resp {
s32 status;
u32 flags;
u32 transition_latency;
u8 name[16];
};
struct rpmi_dpwr_set_state_req {
u32 domain_id;
u32 state;
};
struct rpmi_dpwr_set_state_resp {
s32 status;
};
struct rpmi_dpwr_get_state_req {
u32 domain_id;
};
struct rpmi_dpwr_get_state_resp {
s32 status;
u32 state;
};
#endif /* !__RPMI_MSGPROT_H__ */

4
lib/utils/mpxy/Kconfig
View File

@ -26,6 +26,10 @@ config FDT_MPXY_RPMI_VOLTAGE
bool "MPXY driver for RPMI voltage service group"
default n
config FDT_MPXY_RPMI_DEVICE_POWER
bool "MPXY driver for RPMI device power service group"
default n
endif
endmenu

56
lib/utils/mpxy/fdt_mpxy_rpmi_device_power.c Normal file
View File

@ -0,0 +1,56 @@
#include <sbi_utils/mpxy/fdt_mpxy_rpmi_mbox.h>
static struct mpxy_rpmi_service_data dpwr_services[] = {
{
.id = RPMI_DPWR_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_DPWR_SRV_GET_NUM_DOMAINS,
.min_tx_len = 0,
.max_tx_len = 0,
.min_rx_len = sizeof(struct rpmi_dpwr_get_num_domain_resp),
.max_rx_len = sizeof(struct rpmi_dpwr_get_num_domain_resp),
},
{
.id = RPMI_DPWR_SRV_GET_ATTRIBUTES,
.min_tx_len = sizeof(struct rpmi_dpwr_get_attrs_req),
.max_tx_len = sizeof(struct rpmi_dpwr_get_attrs_req),
.min_rx_len = sizeof(struct rpmi_dpwr_get_attrs_resp),
.max_rx_len = sizeof(struct rpmi_dpwr_get_attrs_resp),
},
{
.id = RPMI_DPWR_SRV_SET_STATE,
.min_tx_len = sizeof(struct rpmi_dpwr_set_state_req),
.max_tx_len = sizeof(struct rpmi_dpwr_set_state_req),
.min_rx_len = sizeof(struct rpmi_dpwr_set_state_resp),
.max_rx_len = sizeof(struct rpmi_dpwr_set_state_resp),
},
{
.id = RPMI_DPWR_SRV_GET_STATE,
.min_tx_len = sizeof(struct rpmi_dpwr_get_state_req),
.max_tx_len = sizeof(struct rpmi_dpwr_get_state_req),
.min_rx_len = sizeof(struct rpmi_dpwr_get_state_resp),
.max_rx_len = sizeof(struct rpmi_dpwr_get_state_resp),
},
};
static const struct mpxy_rpmi_mbox_data dpwr_data = {
.servicegrp_id = RPMI_SRVGRP_DEVICE_POWER,
.num_services = RPMI_DPWR_SRV_MAX_COUNT,
.service_data = dpwr_services,
};
static const struct fdt_match dpwr_match[] = {
{ .compatible = "riscv,rpmi-mpxy-device-power", .data = &dpwr_data },
{ },
};
const struct fdt_driver fdt_mpxy_rpmi_device_power = {
.experimental = true,
.match_table = dpwr_match,
.init = mpxy_rpmi_mbox_init,
};

3
lib/utils/mpxy/objects.mk
View File

@ -20,3 +20,6 @@ libsbiutils-objs-$(CONFIG_FDT_MPXY_RPMI_SYSMSI) += mpxy/fdt_mpxy_rpmi_sysmsi.o
carray-fdt_mpxy_drivers-$(CONFIG_FDT_MPXY_RPMI_VOLTAGE) += fdt_mpxy_rpmi_voltage
libsbiutils-objs-$(CONFIG_FDT_MPXY_RPMI_VOLTAGE) += mpxy/fdt_mpxy_rpmi_voltage.o
carray-fdt_mpxy_drivers-$(CONFIG_FDT_MPXY_RPMI_DEVICE_POWER) += fdt_mpxy_rpmi_device_power
libsbiutils-objs-$(CONFIG_FDT_MPXY_RPMI_DEVICE_POWER) += mpxy/fdt_mpxy_rpmi_device_power.o

1
platform/generic/configs/defconfig
View File

@ -65,4 +65,5 @@ CONFIG_FDT_MPXY=y
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_SYSMSI=y