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drm/radeon/kms: Fix AGP support for R600/RV770 family (v2)

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For AGP to work unmapped access must cover VRAM & AGP as
AGP is treated like VRAM by the GPU (ie physical address).
This patch properly setup the virtual memory system aperture
to cover AGP if AGP is enabled. It seems that there is memory
corruption after resume when using AGP (RV770 seems unaffected
thought). Version 2 just fix merge issue with updated AGP
fallback patch.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jerome Glisse 2009-10-06 19:04:30 +02:00 • committed by Dave Airlie
parent b574f251f7
commit 1a029b768f
4 changed files with 157 additions and 41 deletions
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1
drivers/gpu/drm/radeon/radeon_device.c
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@ -575,6 +575,7 @@ int radeon_device_init(struct radeon_device *rdev,
/* Acceleration not working on AGP card try again
* with fallback to PCI or PCIE GART
*/
radeon_gpu_reset(rdev);
radeon_fini(rdev);
radeon_agp_disable(rdev);
r = radeon_init(rdev);