From: Christian K?nig <christian.koe...@amd.com>
Signed-off-by: Christian K?nig <christian.koenig at amd.com>
---
drivers/gpu/drm/radeon/radeon_fence.c | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/radeon_fence.c
b/drivers/gpu/drm/radeon/radeon_fence.c
index a77b1c1..9137870 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -819,15 +819,35 @@ static int radeon_debugfs_fence_info(struct seq_file *m,
void *data)
return 0;
}
+/**
+ * radeon_debugfs_gpu_reset - manually trigger a gpu reset
+ *
+ * Manually trigger a gpu reset at the next fence wait.
+ */
+static int radeon_debugfs_gpu_reset(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = (struct drm_info_node *) m->private;
+ struct drm_device *dev = node->minor->dev;
+ struct radeon_device *rdev = dev->dev_private;
+
+ down_read(&rdev->exclusive_lock);
+ seq_printf(m, "%d\n", rdev->needs_reset);
+ rdev->needs_reset = true;
+ up_read(&rdev->exclusive_lock);
+
+ return 0;
+}
+
static struct drm_info_list radeon_debugfs_fence_list[] = {
{"radeon_fence_info", &radeon_debugfs_fence_info, 0, NULL},
+ {"radeon_gpu_reset", &radeon_debugfs_gpu_reset, 0, NULL}
};
#endif
int radeon_debugfs_fence_init(struct radeon_device *rdev)
{
#if defined(CONFIG_DEBUG_FS)
- return radeon_debugfs_add_files(rdev, radeon_debugfs_fence_list, 1);
+ return radeon_debugfs_add_files(rdev, radeon_debugfs_fence_list, 2);
#else
return 0;
#endif
--
1.9.1
