From d3493574e267c203836bfdcb9c58d8af46fc0da1 Mon Sep 17 00:00:00 2001
From: Jerome Glisse <jglisse@redhat.com>
Date: Fri, 14 Dec 2012 16:20:46 -0500
Subject: [PATCH] drm/radeon: restore modeset late in GPU reset path
Modeset path seems to conflict sometimes with the memory management
leading to kernel deadlock. This move modesetting reset after GPU
acceleration reset.
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
drivers/gpu/drm/radeon/radeon_device.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index a6617b53a9c68..cd756262924d3 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1347,7 +1347,6 @@ retry:
}
radeon_restore_bios_scratch_regs(rdev);
- drm_helper_resume_force_mode(rdev->ddev);
if (!r) {
for (i = 0; i < RADEON_NUM_RINGS; ++i) {
@@ -1373,6 +1372,8 @@ retry:
}
}
+ drm_helper_resume_force_mode(rdev->ddev);
+
ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched);
if (r) {
/* bad news, how to tell it to userspace ? */
--
2.39.5