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drm/nvc0: remove vm hack forcing large/small pages to not share a PDE

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Appears to be fixed with commit:

"drm/nv50-nvc0: make sure vma is definitely unmapped when destroying bo"

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2011-02-28 17:20:45 +10:00
parent e73f88af66
commit b84f30e65c
1 changed files with 1 additions and 12 deletions
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13
drivers/gpu/drm/nouveau/nouveau_vm.c
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@ -314,18 +314,7 @@ nouveau_vm_new(struct drm_device *dev, u64 offset, u64 length, u64 mm_offset,
vm->spg_shift = 12; vm->spg_shift = 12;
vm->lpg_shift = 17; vm->lpg_shift = 17;
pgt_bits = 27; pgt_bits = 27;
block = 4096;
/* Should be 4096 everywhere, this is a hack that's
* currently necessary to avoid an elusive bug that
* causes corruption when mixing small/large pages
*/
if (length < (1ULL << 40))
block = 4096;
else {
block = (1 << pgt_bits);
if (length < block)
block = length;
}
} else { } else {
kfree(vm); kfree(vm);
return -ENOSYS; return -ENOSYS;