diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index 7369b5e73649..66035283546a 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -2083,9 +2083,10 @@ peek_fb(struct drm_device *dev, struct io_mapping *fb, uint32_t val = 0; if (off < pci_resource_len(dev->pdev, 1)) { - uint32_t __iomem *p = io_mapping_map_atomic_wc(fb, off, KM_USER0); + uint32_t __iomem *p = + io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0); - val = ioread32(p); + val = ioread32(p + (off & ~PAGE_MASK)); io_mapping_unmap_atomic(p, KM_USER0); } @@ -2098,9 +2099,10 @@ poke_fb(struct drm_device *dev, struct io_mapping *fb, uint32_t off, uint32_t val) { if (off < pci_resource_len(dev->pdev, 1)) { - uint32_t __iomem *p = io_mapping_map_atomic_wc(fb, off, KM_USER0); + uint32_t __iomem *p = + io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0); - iowrite32(val, p); + iowrite32(val, p + (off & ~PAGE_MASK)); wmb(); io_mapping_unmap_atomic(p, KM_USER0); |