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author | Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> | 2021-07-27 03:52:47 +0300 |
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committer | Alex Deucher <alexander.deucher@amd.com> | 2021-08-06 04:17:59 +0300 |
commit | 2d8471dc371f36fd6ba3b5a4716b39555169df3d (patch) | |
tree | cbb6b48333aab9b8d55ba1e287f3f0edf7f37798 /tools/memory-model | |
parent | 96ee63730fa30614e943ac352ef772be49a712d9 (diff) | |
download | linux-2d8471dc371f36fd6ba3b5a4716b39555169df3d.tar.xz |
drm/amd/display: Add control mechanism for FPU utilization
DC invokes DC_FPU_START/END in multiple parts of the code; this can
create a situation where we invoke this FPU operation in a nested way or
exit too early. For avoiding this situation, this commit adds a
mechanism where dc_fpu_begin/end manages the access to
kernel_fpu_begin/end.
Change since V3:
- Rebase
Change since V2:
- Christian: Do not use this_cpu_* between get/put_cpu_ptr().
Change since V1:
- Use a better variable names
- Use get_cpu_ptr and put_cpu_ptr to better balance preemption enable
and disable
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Anson Jacob <Anson.Jacob@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Hersen Wu <hersenxs.wu@amd.com>
Cc: Aric Cyr <aric.cyr@amd.com>
Cc: Jun Lei <jun.lei@amd.com>
Cc: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>
Cc: Qingqing Zhuo <qingqing.zhuo@amd.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'tools/memory-model')
0 files changed, 0 insertions, 0 deletions