lib/intel_batchbuffer: Add tracking intel_buf to intel_bb

From now on intel_bb starts tracking added/removed intel_bufs.
We're safe now regardless order of intel_buf close/destroy
or intel_bb destroy paths.

When intel_buf is closed/destroyed first and it was previously added
to intel_bb it calls the code which removes itself from intel_bb.
In destroy path we go over all tracked intel_bufs and clear tracking
information and buffer offset (it is set to INTEL_BUF_INVALID_ADDRESS).

Reset path is handled as follows:
- intel_bb_reset(ibb, false) - just clean objects array leaving
  cache / allocator state intact.
- intel_bb_reset(ibb, true) - purge cache as well as detach intel_bufs
  from intel_bb (release offsets from allocator).

Remove intel_bb_object_offset_to_buf() function as tracking intel_buf
updates (checks for allocator) their offsets after execbuf.

Alter api_intel_bb according to intel-bb changes.

Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
Cc: Dominik Grzegorzek <dominik.grzegorzek@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Petri Latvala <petri.latvala@intel.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/lib/media_spin.c b/lib/media_spin.c
index 5da469a5..d2345d15 100644
--- a/lib/media_spin.c
+++ b/lib/media_spin.c
@@ -132,7 +132,6 @@ gen8_media_spinfunc(int i915, struct intel_buf *buf, uint32_t spins)
 	intel_bb_exec(ibb, intel_bb_offset(ibb),
 		      I915_EXEC_DEFAULT | I915_EXEC_NO_RELOC, false);
 
-	intel_bb_object_offset_to_buf(ibb, buf);
 	intel_bb_destroy(ibb);
 }
 
@@ -186,6 +185,5 @@ gen9_media_spinfunc(int i915, struct intel_buf *buf, uint32_t spins)
 	intel_bb_exec(ibb, intel_bb_offset(ibb),
 		      I915_EXEC_DEFAULT | I915_EXEC_NO_RELOC, false);
 
-	intel_bb_object_offset_to_buf(ibb, buf);
 	intel_bb_destroy(ibb);
 }