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drm/amd/display: Introduce DC VM interface

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Virtual memory allows display to support flipping to surfaces which
are not allocated contiguously in memory with physical addresses,
instead a 1-4 level page table is used.

This is beneficial because it allows the scattering of large surfaces
to improve memory efficiency and security.

Signed-off-by: Eryk Brol <eryk.brol@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Eryk Brol 2018-12-07 10:25:13 -05:00 • committed by Alex Deucher
commit b970864876
10 changed files with 254 additions and 10 deletions
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