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Rev 3031 Rev 3480
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int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *mask)
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int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *mask)
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{
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	struct pci_dev *root;
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{
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	int pos;
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	struct pci_dev *root;
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	u32 lnkcap, lnkcap2;
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	u32 lnkcap, lnkcap2;
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    return -EINVAL;
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    return -EINVAL;
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#if 0
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#if 0
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	root = dev->pdev->bus->self;
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	pos = pci_pcie_cap(root);
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	if (!pos)
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		return -EINVAL;
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	root = dev->pdev->bus->self;
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	/* we've been informed via and serverworks don't make the cut */
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	/* we've been informed via and serverworks don't make the cut */
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//   if (root->vendor == PCI_VENDOR_ID_VIA ||
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	if (root->vendor == PCI_VENDOR_ID_VIA ||
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//       root->vendor == PCI_VENDOR_ID_SERVERWORKS)
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//       return -EINVAL;
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	pci_read_config_dword(root, pos + PCI_EXP_LNKCAP, &lnkcap);
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	    root->vendor == PCI_VENDOR_ID_SERVERWORKS)
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	pci_read_config_dword(root, pos + PCI_EXP_LNKCAP2, &lnkcap2);
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		return -EINVAL;
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	lnkcap &= PCI_EXP_LNKCAP_SLS;
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	pcie_capability_read_dword(root, PCI_EXP_LNKCAP, &lnkcap);
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	lnkcap2 &= 0xfe;
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	pcie_capability_read_dword(root, PCI_EXP_LNKCAP2, &lnkcap2);
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	if (lnkcap2) { /* PCIE GEN 3.0 */
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	if (lnkcap2) {	/* PCIe r3.0-compliant */
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		if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_2_5GB)
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		if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_2_5GB)
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			*mask |= DRM_PCIE_SPEED_25;
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			*mask |= DRM_PCIE_SPEED_25;
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		if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_5_0GB)
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		if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_5_0GB)
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			*mask |= DRM_PCIE_SPEED_50;
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			*mask |= DRM_PCIE_SPEED_50;
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		if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_8_0GB)
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		if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_8_0GB)
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			*mask |= DRM_PCIE_SPEED_80;
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			*mask |= DRM_PCIE_SPEED_80;
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	} else {
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	} else {	/* pre-r3.0 */
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		if (lnkcap & 1)
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		if (lnkcap & PCI_EXP_LNKCAP_SLS_2_5GB)
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			*mask |= DRM_PCIE_SPEED_25;
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			*mask |= DRM_PCIE_SPEED_25;
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		if (lnkcap & 2)
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		if (lnkcap & PCI_EXP_LNKCAP_SLS_5_0GB)
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			*mask |= DRM_PCIE_SPEED_50;
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			*mask |= (DRM_PCIE_SPEED_25 | DRM_PCIE_SPEED_50);