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lib: utils/mpxy: Remove p2a_db_index from RPMI system MSI attributes

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The discovery of P2A doorbell system MSI index is now through RPMI
shared memory DT node so remove p2a_db_index from RPMI system MSI
attributes and access it as a mailbox channel attribute.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Link: https://lore.kernel.org/r/20250512083827.804151-5-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Anup Patel
2025-05-12 14:08:27 +05:30
committed by Anup Patel
parent 8fadfebdd1
commit f3cce5b97f
2 changed files with 9 additions and 5 deletions
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13
lib/utils/mpxy/fdt_mpxy_rpmi_sysmsi.c
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@@ -32,10 +32,9 @@ static int mpxy_rpmi_sysmis_xfer(void *context, struct mbox_chan *chan,
case RPMI_SYSMSI_SRV_GET_ATTRIBUTES:
((u32 *)xfer->rx)[0] = cpu_to_le32(RPMI_SUCCESS);
((u32 *)xfer->rx)[1] = cpu_to_le32(smg->sys_num_msi);
((u32 *)xfer->rx)[2] = -1U;
((u32 *)xfer->rx)[2] = 0;
((u32 *)xfer->rx)[3] = 0;
((u32 *)xfer->rx)[4] = 0;
args->rx_data_len = 5 * sizeof(u32);
args->rx_data_len = 4 * sizeof(u32);
break;
case RPMI_SYSMSI_SRV_GET_MSI_ATTRIBUTES:
case RPMI_SYSMSI_SRV_SET_MSI_STATE:
@@ -90,8 +89,14 @@ static int mpxy_rpmi_sysmsi_setup(void **context, struct mbox_chan *chan,
struct rpmi_sysmsi_get_msi_attributes_req gmareq;
struct rpmi_sysmsi_get_attributes_resp garesp;
struct mpxy_rpmi_sysmsi *smg;
u32 p2a_db_index;
int rc, i;
rc = mbox_chan_get_attribute(chan, RPMI_CHANNEL_ATTR_P2A_DOORBELL_SYSMSI_INDEX,
&p2a_db_index);
if (rc)
return rc;
rc = rpmi_normal_request_with_status(chan, RPMI_SYSMSI_SRV_GET_ATTRIBUTES,
NULL, 0, 0, &garesp, rpmi_u32_count(garesp),
rpmi_u32_count(garesp));
@@ -122,7 +127,7 @@ static int mpxy_rpmi_sysmsi_setup(void **context, struct mbox_chan *chan,
return rc;
}
if (garesp.p2a_db_index == i ||
if (p2a_db_index == i ||
(gmaresp.flag0 & RPMI_SYSMSI_MSI_ATTRIBUTES_FLAG0_PREF_PRIV))
bitmap_set(smg->sys_msi_denied_bmap, i, 1);
}