radeon, kdb, kms: Save and restore the LUT on atomic KMS enter/exit

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When changing VTs non-atomically the kernel works in conjunction with
the Xserver in user space and receives the LUT information from the
Xserver via a system call.  When changing modes atomically for kdb,
this information must be saved and restored without disturbing user
space as if nothing ever happened.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
CC: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: David Airlie <airlied@linux.ie>
CC: dri-devel@lists.freedesktop.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

...

This commit is contained in:

Jason Wessel 2010-09-26 06:47:26 -05:00 • committed by Dave Airlie

parent 413d45d362

commit ff773714dd

3 changed files with 40 additions and 0 deletions

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32

drivers/gpu/drm/radeon/radeon_display.c

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5

drivers/gpu/drm/radeon/radeon_legacy_crtc.c

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3

drivers/gpu/drm/radeon/radeon_mode.h

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