diff options
Diffstat (limited to 'drivers/char/agp/intel-gtt.c')
| -rw-r--r-- | drivers/char/agp/intel-gtt.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index 66a62d17a3f5..4b34a5195c65 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -846,6 +846,7 @@ void intel_gtt_insert_page(dma_addr_t addr, unsigned int flags) { intel_private.driver->write_entry(addr, pg, flags); + readl(intel_private.gtt + pg); if (intel_private.driver->chipset_flush) intel_private.driver->chipset_flush(); } @@ -871,7 +872,7 @@ void intel_gtt_insert_sg_entries(struct sg_table *st, j++; } } - wmb(); + readl(intel_private.gtt + j - 1); if (intel_private.driver->chipset_flush) intel_private.driver->chipset_flush(); } @@ -1105,6 +1106,7 @@ static void i9xx_cleanup(void) static void i9xx_chipset_flush(void) { + wmb(); if (intel_private.i9xx_flush_page) writel(1, intel_private.i9xx_flush_page); } @@ -1405,13 +1407,16 @@ int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev, dev_info(&bridge_pdev->dev, "Intel %s Chipset\n", intel_gtt_chipsets[i].name); - mask = intel_private.driver->dma_mask_size; - if (pci_set_dma_mask(intel_private.pcidev, DMA_BIT_MASK(mask))) - dev_err(&intel_private.pcidev->dev, - "set gfx device dma mask %d-bit failed!\n", mask); - else - pci_set_consistent_dma_mask(intel_private.pcidev, - DMA_BIT_MASK(mask)); + if (bridge) { + mask = intel_private.driver->dma_mask_size; + if (pci_set_dma_mask(intel_private.pcidev, DMA_BIT_MASK(mask))) + dev_err(&intel_private.pcidev->dev, + "set gfx device dma mask %d-bit failed!\n", + mask); + else + pci_set_consistent_dma_mask(intel_private.pcidev, + DMA_BIT_MASK(mask)); + } if (intel_gtt_init() != 0) { intel_gmch_remove(); |