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viafb: use write combining for video ram

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This can give a speed up of factor 6-9, which is quite notable.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
This commit is contained in:
Florian Tobias Schandinat 2011-04-24 17:08:44 +00:00
parent f33f6f0ccc
commit cace71b318
1 changed files with 1 additions and 1 deletions
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2
drivers/video/via/via-core.c
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@ -505,7 +505,7 @@ static int __devinit via_pci_setup_mmio(struct viafb_dev *vdev)
ret = vdev->fbmem_len = viafb_get_fb_size_from_pci(vdev->chip_type); ret = vdev->fbmem_len = viafb_get_fb_size_from_pci(vdev->chip_type);
if (ret < 0) if (ret < 0)
goto out_unmap; goto out_unmap;
vdev->fbmem = ioremap_nocache(vdev->fbmem_start, vdev->fbmem_len); vdev->fbmem = ioremap_wc(vdev->fbmem_start, vdev->fbmem_len);
if (vdev->fbmem == NULL) { if (vdev->fbmem == NULL) {
ret = -ENOMEM; ret = -ENOMEM;
goto out_unmap; goto out_unmap;