drm/radeon/kms: bogus cs recorder utilities

This add an utilities function radeon_ib_bogus_add which will
save an ib into a list of ib which can then be dumped using
debugfs. Once dumped the ib is removed from the list. This
should allow to save & capute ib for further debugging.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 3f353131bb38..b519d7db2dcb 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -383,6 +383,7 @@ struct radeon_ib_pool {
         struct mutex            mutex;
         struct radeon_bo        *robj;
         struct list_head        scheduled_ibs;
+        struct list_head        bogus_ib;
         struct radeon_ib        ibs[RADEON_IB_POOL_SIZE];
         bool                    ready;
         DECLARE_BITMAP(alloc_bm, RADEON_IB_POOL_SIZE);
@@ -437,6 +438,7 @@ int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib);
 int radeon_ib_pool_init(struct radeon_device *rdev);
 void radeon_ib_pool_fini(struct radeon_device *rdev);
 int radeon_ib_test(struct radeon_device *rdev);
+extern void radeon_ib_bogus_add(struct radeon_device *rdev, struct radeon_ib *ib);
 /* Ring access between begin & end cannot sleep */
 void radeon_ring_free_size(struct radeon_device *rdev);
 int radeon_ring_lock(struct radeon_device *rdev, unsigned ndw);