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drm/radeon/kms: vram sizing on certain r100 chips needs workaround.

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If an rn50/r100/m6/m7 GPU has < 64MB RAM, i.e. 8/16/32, the
aperture used to calculate the MC_FB_LOCATION needs to be worked
out from the CONFIG_APER_SIZE register, and not the actual vram size.

TTM VRAM size was also being initialised wrong, use actual vram size
to initialise it.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2009-07-21 20:39:30 +10:00
commit 7a50f01a4a
12 changed files with 56 additions and 42 deletions
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4
drivers/gpu/drm/radeon/radeon_gem.c
View file

@ -157,9 +157,9 @@ int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
struct radeon_device *rdev = dev->dev_private;
struct drm_radeon_gem_info *args = data;
args->vram_size = rdev->mc.vram_size;
args->vram_size = rdev->mc.real_vram_size;
/* FIXME: report somethings that makes sense */
args->vram_visible = rdev->mc.vram_size - (4 * 1024 * 1024);
args->vram_visible = rdev->mc.real_vram_size - (4 * 1024 * 1024);
args->gart_size = rdev->mc.gtt_size;
return 0;
}