>
> /* There are signatures in BIOS and PCI-SSID for a PCI card,
> but they are not very reliable.
> Following detection method works for all cards tested so far.
> Note, checking AGP_ENABLE bit after drmAgpEnable call can also
> give the correct result.
> However, calling drmAgpEnable on a PCI card can cause some
> strange lockup when the server
> restarts next time.
> */
> pci_read_config_dword(dev->pdev, RADEON_AGP_COMMAND_PCI_CONFIG,
> &save);
> pci_write_config_dword(dev->pdev, RADEON_AGP_COMMAND_PCI_CONFIG,
> save | RADEON_AGP_ENABLE);
> pci_read_config_dword(dev->pdev, RADEON_AGP_COMMAND_PCI_CONFIG,
> &temp);
> if (temp & RADEON_AGP_ENABLE)
> dev_priv->flags |= CHIP_IS_AGP;
> DRM_DEBUG("%s card detected\n",
> ((dev_priv->flags & CHIP_IS_AGP) ? "AGP" : "PCI"));
> pci_write_config_dword(dev->pdev, RADEON_AGP_COMMAND_PCI_CONFIG,
> save);
perhaps the stuff from Mike Harris in the latest radeon_driver.c in
Xorg might be a better idea..
Dave.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
