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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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1
include/sbi_utils/mailbox/rpmi_msgprot.h
View File

@@ -285,7 +285,6 @@ enum rpmi_sysmsi_service_id {
struct rpmi_sysmsi_get_attributes_resp { struct rpmi_sysmsi_get_attributes_resp {
s32 status; s32 status;
u32 sys_num_msi; u32 sys_num_msi;
u32 p2a_db_index;
u32 flag0; u32 flag0;
u32 flag1; u32 flag1;
}; };

13
lib/utils/mpxy/fdt_mpxy_rpmi_sysmsi.c
View File

@@ -32,10 +32,9 @@ static int mpxy_rpmi_sysmis_xfer(void *context, struct mbox_chan *chan,
case RPMI_SYSMSI_SRV_GET_ATTRIBUTES: case RPMI_SYSMSI_SRV_GET_ATTRIBUTES:
((u32 *)xfer->rx)[0] = cpu_to_le32(RPMI_SUCCESS); ((u32 *)xfer->rx)[0] = cpu_to_le32(RPMI_SUCCESS);
((u32 *)xfer->rx)[1] = cpu_to_le32(smg->sys_num_msi); ((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)[3] = 0;
((u32 *)xfer->rx)[4] = 0; args->rx_data_len = 4 * sizeof(u32);
args->rx_data_len = 5 * sizeof(u32);
break; break;
case RPMI_SYSMSI_SRV_GET_MSI_ATTRIBUTES: case RPMI_SYSMSI_SRV_GET_MSI_ATTRIBUTES:
case RPMI_SYSMSI_SRV_SET_MSI_STATE: 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_msi_attributes_req gmareq;
struct rpmi_sysmsi_get_attributes_resp garesp; struct rpmi_sysmsi_get_attributes_resp garesp;
struct mpxy_rpmi_sysmsi *smg; struct mpxy_rpmi_sysmsi *smg;
u32 p2a_db_index;
int rc, i; 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, rc = rpmi_normal_request_with_status(chan, RPMI_SYSMSI_SRV_GET_ATTRIBUTES,
NULL, 0, 0, &garesp, rpmi_u32_count(garesp), NULL, 0, 0, &garesp, rpmi_u32_count(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; return rc;
} }
if (garesp.p2a_db_index == i || if (p2a_db_index == i ||
(gmaresp.flag0 & RPMI_SYSMSI_MSI_ATTRIBUTES_FLAG0_PREF_PRIV)) (gmaresp.flag0 & RPMI_SYSMSI_MSI_ATTRIBUTES_FLAG0_PREF_PRIV))
bitmap_set(smg->sys_msi_denied_bmap, i, 1); bitmap_set(smg->sys_msi_denied_bmap, i, 1);
} }