On Wed, Jan 25, 2017 at 1:26 AM, Daniel Vetter wrote:
> It's only for a device quirk, and we might as well do that in the load
> callback.
>
> Signed-off-by: Daniel Vetter
Acked-by: Alex Deucher
> ---
> drivers/gpu/drm/mga/mga_dma.c | 20 +++-
> drivers/gpu/drm/mga/mga_drv.c | 37 -
> 2 files changed, 19 insertions(+), 38 deletions(-)
>
> diff --git a/drivers/gpu/drm/mga/mga_dma.c b/drivers/gpu/drm/mga/mga_dma.c
> index a1d8dd15b131..1ffdafea27e4 100644
> --- a/drivers/gpu/drm/mga/mga_dma.c
> +++ b/drivers/gpu/drm/mga/mga_dma.c
> @@ -392,6 +392,24 @@ int mga_driver_load(struct drm_device *dev, unsigned
> long flags)
> drm_mga_private_t *dev_priv;
> int ret;
>
> + /* There are PCI versions of the G450. These cards have the
> +* same PCI ID as the AGP G450, but have an additional PCI-to-PCI
> +* bridge chip. We detect these cards, which are not currently
> +* supported by this driver, by looking at the device ID of the
> +* bus the "card" is on. If vendor is 0x3388 (Hint Corp) and the
> +* device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the
> +* device.
> +*/
> + if ((dev->pdev->device == 0x0525) && dev->pdev->bus->self
> + && (dev->pdev->bus->self->vendor == 0x3388)
> + && (dev->pdev->bus->self->device == 0x0021)
> + && dev->agp) {
> + /* FIXME: This should be quirked in the pci core, but oh well
> +* the hw probably stopped existing. */
> + arch_phys_wc_del(dev->agp->agp_mtrr);
> + kfree(dev->agp);
> + dev->agp = NULL;
> + }
> dev_priv = kzalloc(sizeof(drm_mga_private_t), GFP_KERNEL);
> if (!dev_priv)
> return -ENOMEM;
> @@ -698,7 +716,7 @@ static int mga_do_pci_dma_bootstrap(struct drm_device
> *dev,
> static int mga_do_dma_bootstrap(struct drm_device *dev,
> drm_mga_dma_bootstrap_t *dma_bs)
> {
> - const int is_agp = (dma_bs->agp_mode != 0) &&
> drm_pci_device_is_agp(dev);
> + const int is_agp = (dma_bs->agp_mode != 0) && dev->agp;
> int err;
> drm_mga_private_t *const dev_priv =
> (drm_mga_private_t *) dev->dev_private;
> diff --git a/drivers/gpu/drm/mga/mga_drv.c b/drivers/gpu/drm/mga/mga_drv.c
> index 25b2a1a424e6..63ba0699d107 100644
> --- a/drivers/gpu/drm/mga/mga_drv.c
> +++ b/drivers/gpu/drm/mga/mga_drv.c
> @@ -37,8 +37,6 @@
>
> #include
>
> -static int mga_driver_device_is_agp(struct drm_device *dev);
> -
> static struct pci_device_id pciidlist[] = {
> mga_PCI_IDS
> };
> @@ -66,7 +64,6 @@ static struct drm_driver driver = {
> .lastclose = mga_driver_lastclose,
> .set_busid = drm_pci_set_busid,
> .dma_quiescent = mga_driver_dma_quiescent,
> - .device_is_agp = mga_driver_device_is_agp,
> .get_vblank_counter = mga_get_vblank_counter,
> .enable_vblank = mga_enable_vblank,
> .disable_vblank = mga_disable_vblank,
> @@ -107,37 +104,3 @@ module_exit(mga_exit);
> MODULE_AUTHOR(DRIVER_AUTHOR);
> MODULE_DESCRIPTION(DRIVER_DESC);
> MODULE_LICENSE("GPL and additional rights");
> -
> -/**
> - * Determine if the device really is AGP or not.
> - *
> - * In addition to the usual tests performed by \c drm_device_is_agp, this
> - * function detects PCI G450 cards that appear to the system exactly like
> - * AGP G450 cards.
> - *
> - * \param dev The device to be tested.
> - *
> - * \returns
> - * If the device is a PCI G450, zero is returned. Otherwise 2 is returned.
> - */
> -static int mga_driver_device_is_agp(struct drm_device *dev)
> -{
> - const struct pci_dev *const pdev = dev->pdev;
> -
> - /* There are PCI versions of the G450. These cards have the
> -* same PCI ID as the AGP G450, but have an additional PCI-to-PCI
> -* bridge chip. We detect these cards, which are not currently
> -* supported by this driver, by looking at the device ID of the
> -* bus the "card" is on. If vendor is 0x3388 (Hint Corp) and the
> -* device is 0x0021 (HB6 Universal PCI-PCI bridge), we reject the
> -* device.
> -*/
> -
> - if ((pdev->device == 0x0525) && pdev->bus->self
> - && (pdev->bus->self->vendor == 0x3388)
> - && (pdev->bus->self->device == 0x0021)) {
> - return 0;
> - }
> -
> - return 2;
> -}
> --
> 2.11.0
>
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