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lib: utils: Add Implementation ID and Version as RPMI MPXY attributes

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The latest frozen RPMI spec has added Implementation ID
and Implementation Version as message protocol specific
mpxy attributes. Add support for these.

Signed-off-by: Rahul Pathak <rpathak@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20250618053854.2577299-1-rpathak@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Rahul Pathak
2025-06-18 11:08:53 +05:30
committed by Anup Patel
parent 13abda5169
commit a5fdef45db
4 changed files with 30 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/sbi_utils/mailbox/rpmi_msgprot.h
View File

@@ -198,6 +198,8 @@ enum rpmi_channel_attribute_id {
RPMI_CHANNEL_ATTR_RX_TIMEOUT,
RPMI_CHANNEL_ATTR_SERVICEGROUP_ID,
RPMI_CHANNEL_ATTR_SERVICEGROUP_VERSION,
RPMI_CHANNEL_ATTR_IMPL_ID,
RPMI_CHANNEL_ATTR_IMPL_VERSION,
RPMI_CHANNEL_ATTR_MAX,
};

8
include/sbi_utils/mpxy/fdt_mpxy_rpmi_mbox.h
View File

@@ -22,7 +22,9 @@
enum mpxy_msgprot_rpmi_attr_id {
MPXY_MSGPROT_RPMI_ATTR_SERVICEGROUP_ID = SBI_MPXY_ATTR_MSGPROTO_ATTR_START,
MPXY_MSGPROT_RPMI_ATTR_SERVICEGROUP_VERSION,
MPXY_MSGPROT_RPMI_ATTR_MAX_ID,
MPXY_MSGPROT_RPMI_ATTR_IMPL_ID,
MPXY_MSGPROT_RPMI_ATTR_IMPL_VERSION,
MPXY_MSGPROT_RPMI_ATTR_MAX_ID
};
/**
@@ -33,6 +35,8 @@ enum mpxy_msgprot_rpmi_attr_id {
struct mpxy_rpmi_channel_attrs {
u32 servicegrp_id;
u32 servicegrp_ver;
u32 impl_id;
u32 impl_ver;
};
/** Make sure all attributes are packed for direct memcpy */
@@ -45,6 +49,8 @@ struct mpxy_rpmi_channel_attrs {
assert_field_offset(servicegrp_id, MPXY_MSGPROT_RPMI_ATTR_SERVICEGROUP_ID);
assert_field_offset(servicegrp_ver, MPXY_MSGPROT_RPMI_ATTR_SERVICEGROUP_VERSION);
assert_field_offset(impl_id, MPXY_MSGPROT_RPMI_ATTR_IMPL_ID);
assert_field_offset(impl_ver, MPXY_MSGPROT_RPMI_ATTR_IMPL_VERSION);
/** MPXY RPMI service data for each service group */
struct mpxy_rpmi_service_data {

6
lib/utils/mailbox/fdt_mailbox_rpmi_shmem.c
View File

@@ -523,6 +523,12 @@ static int rpmi_shmem_mbox_get_attribute(struct mbox_chan *chan,
case RPMI_CHANNEL_ATTR_SERVICEGROUP_VERSION:
*((u32 *)out_value) = srvgrp_chan->servicegroup_version;
break;
case RPMI_CHANNEL_ATTR_IMPL_ID:
*((u32 *)out_value) = mctl->impl_id;
break;
case RPMI_CHANNEL_ATTR_IMPL_VERSION:
*((u32 *)out_value) = mctl->impl_version;
break;
default:
return SBI_ENOTSUPP;
}

15
lib/utils/mpxy/fdt_mpxy_rpmi_mbox.c
View File

@@ -213,6 +213,7 @@ static int mpxy_mbox_send_message_withoutresp(struct sbi_mpxy_channel *channel,
int mpxy_rpmi_mbox_init(const void *fdt, int nodeoff, const struct fdt_match *match)
{
u32 channel_id, servicegrp_ver, pro_ver, max_data_len, tx_tout, rx_tout;
u32 impl_id, impl_ver;
const struct mpxy_rpmi_mbox_data *data = match->data;
struct mpxy_rpmi_mbox *rmb;
struct mbox_chan *chan;
@@ -270,6 +271,18 @@ int mpxy_rpmi_mbox_init(const void *fdt, int nodeoff, const struct fdt_match *ma
if (rc)
goto fail_free_chan;
/* Get channel implementation id */
rc = mbox_chan_get_attribute(chan, RPMI_CHANNEL_ATTR_IMPL_ID,
&impl_id);
if (rc)
goto fail_free_chan;
/* Get channel implementation version */
rc = mbox_chan_get_attribute(chan, RPMI_CHANNEL_ATTR_IMPL_VERSION,
&impl_ver);
if (rc)
goto fail_free_chan;
/*
* The "riscv,sbi-mpxy-channel-id" DT property is mandatory
* for MPXY RPMI mailbox client driver so if this is not
@@ -316,6 +329,8 @@ int mpxy_rpmi_mbox_init(const void *fdt, int nodeoff, const struct fdt_match *ma
/* RPMI service group attributes */
rmb->msgprot_attrs.servicegrp_id = data->servicegrp_id;
rmb->msgprot_attrs.servicegrp_ver = servicegrp_ver;
rmb->msgprot_attrs.impl_id = impl_id;
rmb->msgprot_attrs.impl_ver = impl_ver;
rmb->mbox_data = data;
rmb->chan = chan;