From 9b974cc17166d31afed2638d56bdbf9829afbfaa Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Tue, 5 Jan 2010 11:25:06 +0800 Subject: [PATCH] drm/i915: enable 36bit physical address for hardware status page This enables possible 36bit address mask on 965G that use physical address for hw status page. Signed-off-by: Zhenyu Wang Signed-off-by: Eric Anholt --- drivers/char/agp/intel-agp.c | 6 +++++- drivers/gpu/drm/i915/i915_dma.c | 4 ++++ 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c index 30c36ac2cd0..3999a5f25f3 100644 --- a/drivers/char/agp/intel-agp.c +++ b/drivers/char/agp/intel-agp.c @@ -2460,10 +2460,14 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev, &bridge->mode); } - if (bridge->driver->mask_memory == intel_i965_mask_memory) + if (bridge->driver->mask_memory == intel_i965_mask_memory) { if (pci_set_dma_mask(intel_private.pcidev, DMA_BIT_MASK(36))) dev_err(&intel_private.pcidev->dev, "set gfx device dma mask 36bit failed!\n"); + else + pci_set_consistent_dma_mask(intel_private.pcidev, + DMA_BIT_MASK(36)); + } pci_set_drvdata(pdev, bridge); return agp_add_bridge(bridge); diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index bbe47812e4b..e660ac07f3b 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -134,6 +134,10 @@ static int i915_init_phys_hws(struct drm_device *dev) memset(dev_priv->hw_status_page, 0, PAGE_SIZE); + if (IS_I965G(dev)) + dev_priv->dma_status_page |= (dev_priv->dma_status_page >> 28) & + 0xf0; + I915_WRITE(HWS_PGA, dev_priv->dma_status_page); DRM_DEBUG_DRIVER("Enabled hardware status page\n"); return 0; -- 2.41.0