drm/amdgpu: Check for valid number of registers to read

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Do not try to allocate any amount of memory requested by the user.
Instead limit it to 128 registers. Actually the longest series of
consecutive allowed registers are 48, mmGB_TILE_MODE0-31 and
mmGB_MACROTILE_MODE0-15 (0x2644-0x2673).

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=111273
Signed-off-by: Trek <trek00@inbox.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Trek 2019-08-31 21:25:36 +02:00 • committed by Alex Deucher

parent 80f349ce55

commit 13238d4fa6

1 changed files with 3 additions and 0 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c

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