linux-kernel - [PATCH 1/3] remoteproc: xlnx: enable boot recovery

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Message-ID: <20251028045730.1622685-2-tanmay.shah@amd.com>
Date: Mon, 27 Oct 2025 21:57:29 -0700
From: Tanmay Shah <tanmay.shah@....com>
To: <andersson@...nel.org>, <mathieu.poirier@...aro.org>
CC: <linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Tanmay
 Shah <tanmay.shah@....com>
Subject: [PATCH 1/3] remoteproc: xlnx: enable boot recovery

This is the default method to recover the remote processor from crash.
During this recovery the Linux will stop the remote, load the same
firmware again and start the remote processor. As of now, coredump
callback doest not contain any useful implementation, but this can be
changed as required

Signed-off-by: Tanmay Shah <tanmay.shah@....com>
---
 drivers/remoteproc/xlnx_r5_remoteproc.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/remoteproc/xlnx_r5_remoteproc.c b/drivers/remoteproc/xlnx_r5_remoteproc.c
index 0b7b173d0d26..8677b732ad14 100644
--- a/drivers/remoteproc/xlnx_r5_remoteproc.c
+++ b/drivers/remoteproc/xlnx_r5_remoteproc.c
@@ -891,6 +891,11 @@ static int zynqmp_r5_detach(struct rproc *rproc)
 	return 0;
 }
 
+static void zynqmp_r5_coredump(struct rproc *rproc)
+{
+	(void)rproc;
+}
+
 static const struct rproc_ops zynqmp_r5_rproc_ops = {
 	.prepare	= zynqmp_r5_rproc_prepare,
 	.unprepare	= zynqmp_r5_rproc_unprepare,
@@ -905,6 +910,7 @@ static const struct rproc_ops zynqmp_r5_rproc_ops = {
 	.get_loaded_rsc_table = zynqmp_r5_get_loaded_rsc_table,
 	.attach		= zynqmp_r5_attach,
 	.detach		= zynqmp_r5_detach,
+	.coredump	= zynqmp_r5_coredump,
 };
 
 /**
@@ -938,7 +944,7 @@ static struct zynqmp_r5_core *zynqmp_r5_add_rproc_core(struct device *cdev)
 
 	rproc_coredump_set_elf_info(r5_rproc, ELFCLASS32, EM_ARM);
 
-	r5_rproc->recovery_disabled = true;
+	r5_rproc->recovery_disabled = false;
 	r5_rproc->has_iommu = false;
 	r5_rproc->auto_boot = false;
 	r5_core = r5_rproc->priv;
-- 
2.34.1