Differential D6694 Diff 17241 sys/dev/drm2/i915/i915_gem_gtt.c

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sys/dev/drm2/i915/i915_gem_gtt.c

Show First 20 Lines • Show All 643 Lines • ▼ Show 20 Lines	static inline unsigned int gen7_get_stolen_size(u16 snb_gmch_ctl)
return stolen_decoder[snb_gmch_ctl] << 20;		return stolen_decoder[snb_gmch_ctl] << 20;
}		}

int i915_gem_gtt_init(struct drm_device *dev)		int i915_gem_gtt_init(struct drm_device *dev)
{		{
struct drm_i915_private *dev_priv = dev->dev_private;		struct drm_i915_private *dev_priv = dev->dev_private;
vm_paddr_t gtt_bus_addr;		vm_paddr_t gtt_bus_addr;
u16 snb_gmch_ctl;		u16 snb_gmch_ctl;
		struct intel_gtt *gtt;
int ret;		int ret;

/* On modern platforms we need not worry ourself with the legacy		/* On modern platforms we need not worry ourself with the legacy
* hostbridge query stuff. Skip it entirely		* hostbridge query stuff. Skip it entirely
*/		*/
		gtt = dev_priv->mm.gtt = malloc(sizeof(*dev_priv->mm.gtt), DRM_I915_GEM, M_WAITOK \| M_ZERO);

if (INTEL_INFO(dev)->gen < 6) {		if (INTEL_INFO(dev)->gen < 6) {
		size_t gtt_total, stolen_size;
		unsigned long mappable_end;
#ifdef FREEBSD_WIP		#ifdef FREEBSD_WIP
ret = intel_gmch_probe(dev_priv->bridge_dev, dev->pdev, NULL);		ret = intel_gmch_probe(dev_priv->bridge_dev, dev->pdev, NULL);
if (!ret) {		if (!ret) {
DRM_ERROR("failed to set up gmch\n");		DRM_ERROR("failed to set up gmch\n");
return -EIO;		return -EIO;
}		}
#endif /* FREEBSD_WIP */		#endif /* FREEBSD_WIP */

dev_priv->mm.gtt = intel_gtt_get();		intel_gtt_get(&gtt_total, &stolen_size, &gtt->gma_bus_addr, &mappable_end);
		gtt->gtt_total_entries = gtt_total;
		gtt->stolen_size = stolen_size;
		gtt->gtt_mappable_entries = mappable_endi >> PAGE_SHIFT;
if (!dev_priv->mm.gtt) {		if (!dev_priv->mm.gtt) {
DRM_ERROR("Failed to initialize GTT\n");		DRM_ERROR("Failed to initialize GTT\n");
#ifdef FREEBSD_WIP		#ifdef FREEBSD_WIP
intel_gmch_remove();		intel_gmch_remove();
#endif /* FREEBSD_WIP */		#endif /* FREEBSD_WIP */
return -ENODEV;		return -ENODEV;
}		}
return 0;		return 0;
}		}

dev_priv->mm.gtt = malloc(sizeof(*dev_priv->mm.gtt), DRM_I915_GEM, M_WAITOK \| M_ZERO);
if (!dev_priv->mm.gtt)
return -ENOMEM;

#ifdef FREEBSD_WIP		#ifdef FREEBSD_WIP
if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(40)))		if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(40)))
pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(40));		pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(40));
#endif /* FREEBSD_WIP */		#endif /* FREEBSD_WIP */

#ifdef CONFIG_INTEL_IOMMU		#ifdef CONFIG_INTEL_IOMMU
dev_priv->mm.gtt->needs_dmar = 1;		dev_priv->mm.gtt->needs_dmar = 1;
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