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FromFlorian Tobias Schandinat <>
Subject[PATCH 1/3] viafb: use write combining for video ram
DateSat, 30 Apr 2011 14:18:04 +0000
This can give a speed up of factor 6-9, which is quite notable.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
---
drivers/video/via/via-core.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/video/via/via-core.c b/drivers/video/via/via-core.c
index 6723d69..5b0129b 100644
--- a/drivers/video/via/via-core.c
+++ b/drivers/video/via/via-core.c
@@ -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);
if (ret < 0)
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) {
ret = -ENOMEM;
goto out_unmap;
--
1.6.3.2


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