drm/radeon/kms: auto detect pcie link speed from root port

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This check the root ports supported link speeds and enables
GEN2 mode if the 5.0 GT link speed is available.

The first 3.0 cards are SI so they will probably need more investigation.

Signed-off-by: Dave Airlie <airlied@redhat.com>

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This commit is contained in:

Dave Airlie 2012-06-27 08:35:54 +01:00

parent f42977841f

commit 197bbb3d46

4 changed files with 35 additions and 3 deletions

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12

drivers/gpu/drm/radeon/evergreen.c

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11

drivers/gpu/drm/radeon/r600.c

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4

drivers/gpu/drm/radeon/radeon_drv.c

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11

drivers/gpu/drm/radeon/rv770.c

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