linux

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Alex Hung 031f196d1b drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes

[WHY]
When PTEBufferSizeInRequests is zero, UBSAN reports the following
warning because dml_log2 returns an unexpected negative value:

  shift exponent 4294966273 is too large for 32-bit type 'int'

[HOW]

In the case PTEBufferSizeInRequests is zero, skip the dml_log2() and
assign the result directly.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

2023-03-01 22:43:19 -05:00

dcn30_fpu.c

drm/amd/display: Remove stutter only configurations

2023-02-14 16:04:28 -05:00

dcn30_fpu.h

drm/amd/display: Create patch bounding box function for isolate FPU

2022-07-25 17:16:20 -04:00

display_mode_vba_30.c

drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes

2023-03-01 22:43:19 -05:00

display_mode_vba_30.h

drm/amd/display: Remove duplicate code across dcn30 and dcn31