From: "David E. Garcia Porras" <david.garcia@aheadcomputing.com>
To: opensbi@lists.infradead.org
Cc: "David E. Garcia Porras" <david.garcia@aheadcomputing.com>
Subject: [PATCH 1/2] lib: sbi_mpxy: Enable MPXY channel MSI availability determination
Date: Thu, 9 Apr 2026 08:57:15 -0600 [thread overview]
Message-ID: <20260409145716.2611852-2-david.garcia@aheadcomputing.com> (raw)
In-Reply-To: <20260409145716.2611852-1-david.garcia@aheadcomputing.com>
Use imsic_get_data() to determine MSI availability for each MPXY
channel based on IMSIC presence per hart, instead of unconditionally
disabling it.
Add a static inline stub for imsic_get_data() when CONFIG_IRQCHIP_IMSIC
is not enabled.
Signed-off-by: David E. Garcia Porras <david.garcia@aheadcomputing.com>
---
include/sbi_utils/irqchip/imsic.h | 2 ++
lib/sbi/sbi_mpxy.c | 8 ++++----
2 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/include/sbi_utils/irqchip/imsic.h b/include/sbi_utils/irqchip/imsic.h
index 88dd3cfb..68f3c4ad 100644
--- a/include/sbi_utils/irqchip/imsic.h
+++ b/include/sbi_utils/irqchip/imsic.h
@@ -54,6 +54,8 @@ static inline void imsic_local_irqchip_init(void) { }
static inline int imsic_data_check(struct imsic_data *imsic) { return 0; }
+static inline struct imsic_data *imsic_get_data(u32 hartindex) { return NULL; }
+
#endif
#endif
diff --git a/lib/sbi/sbi_mpxy.c b/lib/sbi/sbi_mpxy.c
index a83cf16c..8ff52bb6 100644
--- a/lib/sbi/sbi_mpxy.c
+++ b/lib/sbi/sbi_mpxy.c
@@ -20,6 +20,7 @@
#include <sbi/sbi_bitops.h>
#include <sbi/sbi_console.h>
#include <sbi/sbi_byteorder.h>
+#include <sbi_utils/irqchip/imsic.h>
/** Shared memory size across all harts */
static unsigned long mpxy_shmem_size = PAGE_SIZE;
@@ -255,11 +256,10 @@ static int domain_mpxy_state_data_setup(struct sbi_domain *dom,
return SBI_ENOMEM;
/*
- * TODO: Proper support for checking msi support from
- * platform. Currently disable msi and sse and use
- * polling
+ * TODO: Proper support for checking sse support from
+ * platform. Currently disable sse and use polling
*/
- ms->msi_avail = false;
+ ms->msi_avail = !!imsic_get_data(i);
ms->sse_avail = false;
sbi_mpxy_shmem_disable(ms);
--
2.43.0
--
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next prev parent reply other threads:[~2026-04-09 14:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-09 14:57 [PATCH 0/2] MPXY MSI availability and RPMI notification updates David E. Garcia Porras
2026-04-09 14:57 ` David E. Garcia Porras [this message]
2026-04-09 14:57 ` [PATCH 2/2] include: mailbox: Update RPMI notification structs and add Performance event definitions David E. Garcia Porras
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