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drm/radeon/kms: fix VRAM sizing like DDX does it.

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Doing this like the DDX seems like the most sure fire way to avoid
having to reinvent it slowly and painfully. At the moment we keep
getting things wrong with aper vs vram, so we know the DDX does it right.

booted on PCI r100, PCIE rv370, IGP rs400.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2009-07-11 04:44:47 +10:00
committed by Dave Airlie
parent ad49f50186
commit 2a0f8918fc
7 changed files with 71 additions and 31 deletions
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7
drivers/gpu/drm/radeon/radeon_device.c
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@@ -561,12 +561,7 @@ int radeon_device_init(struct radeon_device *rdev,
}
/* Get vram informations */
radeon_vram_info(rdev);
/* Device is severly broken if aper size > vram size.
* for RN50/M6/M7 - Novell bug 204882 ?
*/
if (rdev->mc.vram_size < rdev->mc.aper_size) {
rdev->mc.vram_size = rdev->mc.aper_size;
}
/* Add an MTRR for the VRAM */
rdev->mc.vram_mtrr = mtrr_add(rdev->mc.aper_base, rdev->mc.aper_size,
MTRR_TYPE_WRCOMB, 1);