drm/i915/gvt: Add support for opregion virtualization

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opregion emulated with a copy from host which leads to some display
bugs such as guest resolution adjustment failure due to host opregion
fail to claim port D support. with a fake opregion table provided
to fully emulate opregion to meet guest port requirement.

v1 - initial patch
v2 - reforamt opregion arrary with 0x02x output
v3 - opregion array removed with opregion generation on host initizaiton
v4 - rebased v3 patch from stable branch to staging branch which also has
     different struct child_device_config and addressed v3 review comments.

Signed-off-by: Xiaolin Zhang <xiaolin.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

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Xiaolin Zhang 2017-09-08 21:37:48 +08:00 • committed by Zhenyu Wang

parent 34cc9efc27

commit a58c38aa6c

2 changed files with 159 additions and 24 deletions

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180

drivers/gpu/drm/i915/gvt/opregion.c

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3

drivers/gpu/drm/i915/gvt/reg.h

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