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drm/vgaarb: add VGA arbitration support to the drm and kms.

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VGA arb requires DRM support for non-kms drivers, to turn on/off
irqs when disabling the mem/io regions.

VGA arb requires KMS support for GPUs where we can turn off VGA
decoding. Currently we know how to do this for intel and radeon
kms drivers, which allows them to be removed from the arbiter.

This patch comes from Fedora rawhide kernel.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2009-09-21 14:33:58 +10:00
parent aadd4e1745
commit 28d520433b
13 changed files with 133 additions and 1 deletions
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drivers/gpu/drm/i915/i915_drv.h
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@@ -766,6 +766,7 @@ static inline void opregion_enable_asle(struct drm_device *dev) { return; }
/* modesetting */
extern void intel_modeset_init(struct drm_device *dev);
extern void intel_modeset_cleanup(struct drm_device *dev);
extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state);
/**
* Lock test for when it's just for synchronization of ring access.