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lib: utils/suspend: Add RPMI system suspend driver

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Add RPMI based system suspend driver.

To test this, execute the follwoing in Linux:
 $ echo mem > /sys/power/state

To wake up, execute the following command on qemu monitor terminal:
 (qemu) system_wakeup

Signed-off-by: Subrahmanya Lingappa <slingappa@ventanamicro.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
This commit is contained in:
Subrahmanya Lingappa
2024-08-06 10:29:32 +05:30
committed by Anup Patel
parent 3676324b0e
commit 13f55f33a1
5 changed files with 186 additions and 0 deletions
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35
include/sbi_utils/mailbox/rpmi_msgprot.h
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@@ -5,6 +5,7 @@
*
* Authors:
* Rahul Pathak <rpathak@ventanamicro.com>
* Subrahmanya Lingappa <slingappa@ventanamicro.com>
*/
#ifndef __RPMI_MSGPROT_H__
@@ -197,6 +198,7 @@ enum rpmi_servicegroup_id {
RPMI_SRVGRP_ID_MIN = 0,
RPMI_SRVGRP_BASE = 0x0001,
RPMI_SRVGRP_SYSTEM_RESET = 0x0002,
RPMI_SRVGRP_SYSTEM_SUSPEND = 0x0003,
RPMI_SRVGRP_ID_MAX_COUNT,
/* Reserved range for service groups */
@@ -279,4 +281,37 @@ struct rpmi_sysrst_get_reset_attributes_resp {
u32 flags;
};
/** RPMI System Suspend ServiceGroup Service IDs */
enum rpmi_system_suspend_service_id {
RPMI_SYSSUSP_SRV_ENABLE_NOTIFICATION = 0x01,
RPMI_SYSSUSP_SRV_GET_ATTRIBUTES = 0x02,
RPMI_SYSSUSP_SRV_SYSTEM_SUSPEND = 0x03,
RPMI_SYSSUSP_SRV_ID_MAX_COUNT,
};
/** Request for system suspend attributes */
struct rpmi_syssusp_get_attr_req {
u32 susp_type;
};
#define RPMI_SYSSUSP_ATTRS_FLAGS_RESUMEADDR (1U << 1)
#define RPMI_SYSSUSP_ATTRS_FLAGS_SUSPENDTYPE 1U
/** Response for system suspend attributes */
struct rpmi_syssusp_get_attr_resp {
s32 status;
u32 flags;
};
struct rpmi_syssusp_suspend_req {
u32 hartid;
u32 suspend_type;
u32 resume_addr_lo;
u32 resume_addr_hi;
};
struct rpmi_syssusp_suspend_resp {
s32 status;
};
#endif /* !__RPMI_MSGPROT_H__ */