linux-kernel - [PATCH] drm/xe: Failed getting VMA cause display stuck

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Date: Mon, 18 Mar 2024 12:12:44 +0800
From: wangxiaoming321 <xiaoming.wang@...el.com>
To: lucas.demarchi@...el.com,
	ogabbay@...nel.org,
	thomas.hellstrom@...ux.intel.com,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	airlied@...il.com,
	daniel@...ll.ch,
	intel-xe@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Cc: wangxiaoming321 <xiaoming.wang@...el.com>
Subject: [PATCH] drm/xe: Failed getting VMA cause display stuck

The failure of binding VMA is duing to interrupt,
So it needs to retry while return fail.

Signed-off-by: wangxiaoming321 <xiaoming.wang@...el.com>
---
 drivers/gpu/drm/xe/xe_vm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c
index 99aa5ffb0ef1..d33476b631e1 100644
--- a/drivers/gpu/drm/xe/xe_vm.c
+++ b/drivers/gpu/drm/xe/xe_vm.c
@@ -2621,6 +2621,9 @@ static int __xe_vma_op_execute(struct xe_vm *vm, struct xe_vma *vma,
 	}
 	drm_exec_fini(&exec);
 
+	if (err == -ERESTARTSYS)
+		goto retry_userptr;
+
 	if (err == -EAGAIN) {
 		lockdep_assert_held_write(&vm->lock);
 
-- 
2.25.1