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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2023-09-21 17:15:16 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-10-09 23:48:08 +0300 |
| commit | 2091ac690301fd7b4f64b08f16c251fbb0d95042 (patch) | |
| tree | e9871a2a1e8799e9c69ceb616d45c1db758da247 /drivers/gpu/drm/amd/display/dc/basics/custom_float.c | |
| parent | 941e8036a450bc7ae8517ceb6dbd9135046f4ad8 (diff) | |
| download | linux-2091ac690301fd7b4f64b08f16c251fbb0d95042.tar.xz | |
drm/amd/display: Move the memory allocation out of dcn20_validate_bandwidth_fp().
dcn20_validate_bandwidth_fp() is invoked while FPU access has been
enabled. FPU access requires disabling preemption even on PREEMPT_RT.
It is not possible to allocate memory with disabled preemption even with
GFP_ATOMIC on PREEMPT_RT.
Move the memory allocation before FPU access is enabled.
To preserve previous "clean" state of "pipes" add a memset() before the
second invocation of dcn20_validate_bandwidth_internal() where the
variable is used.
Acked-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/basics/custom_float.c')
0 files changed, 0 insertions, 0 deletions