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/openbmc/linux/drivers/gpu/drm/radeon/
H A Dradeon_device.cdiff 8e66e134e20b936179ea1535dd4ed19ec4f99dba Wed Oct 15 16:20:55 CDT 2014 Alex Deucher <alexander.deucher@amd.com> drm/radeon: fix vm page table block size calculation

The page offset is 12 bits. For example if we have an
8 GB VM, we'd need 33 bits. The number of bits needed
for PD + PT is 21 (33 - 12 or log2(8) + 18), not 20
(log2(8) + 17).

Noticed by Alexey during code review.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org