diff options
| author | Anup Patel <apatel@ventanamicro.com> | 2025-08-18 07:09:09 +0300 |
|---|---|---|
| committer | Paul Walmsley <pjw@kernel.org> | 2025-09-25 23:31:56 +0300 |
| commit | aa43953e862c031ff66e44353c88beb7a449e80d (patch) | |
| tree | b2669e8b89664ec70b96e9042b0de53ded97070b /include | |
| parent | 3e6cf38486005831e063fd0d943a46bc8434e732 (diff) | |
| download | linux-aa43953e862c031ff66e44353c88beb7a449e80d.tar.xz | |
irqchip: Add driver for the RPMI system MSI service group
The RPMI specification defines a system MSI service group which
allows application processors to receive MSIs upon system events
such as graceful shutdown/reboot request, CPU hotplug event, memory
hotplug event, etc.
Add an irqchip driver for the RISC-V RPMI system MSI service group
to directly receive system MSIs in Linux kernel.
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Link: https://lore.kernel.org/r/20250818040920.272664-14-apatel@ventanamicro.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mailbox/riscv-rpmi-message.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/mailbox/riscv-rpmi-message.h b/include/linux/mailbox/riscv-rpmi-message.h index 8176d33747fe..e135c6564d0c 100644 --- a/include/linux/mailbox/riscv-rpmi-message.h +++ b/include/linux/mailbox/riscv-rpmi-message.h @@ -91,6 +91,7 @@ static inline int rpmi_to_linux_error(int rpmi_error) } /* RPMI service group IDs */ +#define RPMI_SRVGRP_SYSTEM_MSI 0x00002 #define RPMI_SRVGRP_CLOCK 0x00008 /* RPMI clock service IDs */ @@ -106,6 +107,18 @@ enum rpmi_clock_service_id { RPMI_CLK_SRV_ID_MAX_COUNT }; +/* RPMI system MSI service IDs */ +enum rpmi_sysmsi_service_id { + RPMI_SYSMSI_SRV_ENABLE_NOTIFICATION = 0x01, + RPMI_SYSMSI_SRV_GET_ATTRIBUTES = 0x02, + RPMI_SYSMSI_SRV_GET_MSI_ATTRIBUTES = 0x03, + RPMI_SYSMSI_SRV_SET_MSI_STATE = 0x04, + RPMI_SYSMSI_SRV_GET_MSI_STATE = 0x05, + RPMI_SYSMSI_SRV_SET_MSI_TARGET = 0x06, + RPMI_SYSMSI_SRV_GET_MSI_TARGET = 0x07, + RPMI_SYSMSI_SRV_ID_MAX_COUNT +}; + /* RPMI Linux mailbox attribute IDs */ enum rpmi_mbox_attribute_id { RPMI_MBOX_ATTR_SPEC_VERSION, |