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d91c411c74
[Why]
Ghost BO is released with non-empty bulk move object. There is a
warning trace:
WARNING: CPU: 19 PID: 1582 at ttm/ttm_bo.c:366 ttm_bo_release+0x2e1/0x2f0 [amdttm]
Call Trace:
amddma_resv_reserve_fences+0x10d/0x1f0 [amdkcl]
amdttm_bo_put+0x28/0x30 [amdttm]
amdttm_bo_move_accel_cleanup+0x126/0x200 [amdttm]
amdgpu_bo_move+0x1a8/0x770 [amdgpu]
ttm_bo_handle_move_mem+0xb0/0x140 [amdttm]
amdttm_bo_validate+0xbf/0x100 [amdttm]
[How]
The resource of ghost BO should be moved to LRU directly, instead of
using bulk move. The bulk move object of ghost BO should set to NULL
before function ttm_bo_move_to_lru_tail_unlocked.
v2: set bulk move to NULL manually if no resource associated with ghost BO
Fixed: 5b951e487fd6bf5f ("drm/ttm: fix bulk move handling v2")
Signed-off-by: ZhenGuo Yin <zhenguo.yin@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220906084619.2545456-1-zhenguo.yin@amd.com
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.