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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-06 09:32:47 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-06 09:32:47 +0100 |
| commit | f5bced9f34355d2b12779eebdf2634cb27c18cff (patch) | |
| tree | d636906d3aeb78eecc48b6d1e5d0b44b58cd8016 /drivers/gpu/drm/hyperv/hyperv_drm_drv.c | |
| parent | 13a5fad39a7b781c21d9528bcf52a5f5babafe99 (diff) | |
| parent | 0fcfb00b28c0b7884635dacf38e46d60bf3d4eb1 (diff) | |
| download | linux-f5bced9f34355d2b12779eebdf2634cb27c18cff.tar.gz linux-f5bced9f34355d2b12779eebdf2634cb27c18cff.tar.bz2 linux-f5bced9f34355d2b12779eebdf2634cb27c18cff.zip | |
Merge 5.16-rc4 into tty-next
We need the tty/serial driver fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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; } |