diff options
| author |   Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2022-01-18 10:54:02 +0000 |
|---|---|---|
| committer | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2022-01-18 10:54:02 +0000 |
| commit | 647bfd26bf054313305ea9c2c4a1c71f3bbfee63 (patch) | |
| tree | 49abfde459ef32c9811d06ae59dfbaf0000762ab /drivers/gpu/drm/hyperv/hyperv_drm_drv.c | |
| parent | i915: make array flex_regs static const (diff) | |
| parent | Merge tag 'amd-drm-next-5.17-2022-01-12' of https://gitlab.freedesktop.org/agd5f/linux into drm-next (diff) | |
| download | wireguard-linux-647bfd26bf054313305ea9c2c4a1c71f3bbfee63.tar.xz wireguard-linux-647bfd26bf054313305ea9c2c4a1c71f3bbfee63.zip | |
Merge drm/drm-next into drm-intel-gt-next
Maarten needs backmerge to account for header file renames/changes which
landed via drm-intel-next and are interfering with his pinning work.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Diffstat (limited to 'drivers/gpu/drm/hyperv/hyperv_drm_drv.c')
| -rw-r--r-- | drivers/gpu/drm/hyperv/hyperv_drm_drv.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/gpu/drm/hyperv/hyperv_drm_drv.c b/drivers/gpu/drm/hyperv/hyperv_drm_drv.c index cd818a629183..00e53de4812b 100644 --- a/drivers/gpu/drm/hyperv/hyperv_drm_drv.c +++ b/drivers/gpu/drm/hyperv/hyperv_drm_drv.c @@ -225,12 +225,29 @@ static int hyperv_vmbus_remove(struct hv_device *hdev) { struct drm_device *dev = hv_get_drvdata(hdev); struct hyperv_drm_device *hv = to_hv(dev); + struct pci_dev *pdev; drm_dev_unplug(dev); drm_atomic_helper_shutdown(dev); vmbus_close(hdev->channel); hv_set_drvdata(hdev, NULL); - vmbus_free_mmio(hv->mem->start, hv->fb_size); + + /* + * Free allocated MMIO memory only on Gen2 VMs. + * On Gen1 VMs, release the PCI device + */ + if (efi_enabled(EFI_BOOT)) { + vmbus_free_mmio(hv->mem->start, hv->fb_size); + } else { + pdev = pci_get_device(PCI_VENDOR_ID_MICROSOFT, + PCI_DEVICE_ID_HYPERV_VIDEO, NULL); + if (!pdev) { + drm_err(dev, "Unable to find PCI Hyper-V video\n"); + return -ENODEV; + } + pci_release_region(pdev, 0); + pci_dev_put(pdev); + } return 0; } |