diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 1e77fdc9c7d12b66f885146689cd39f77ded5fb6..f62456da0ba5b9abe0082b3ea97f944ebaf0915e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -176,6 +176,7 @@ uint amdgpu_sdma_phase_quantum = 32; char *amdgpu_disable_cu; char *amdgpu_virtual_display; bool enforce_isolation; +int amdgpu_modeset = -1; /* Specifies the default granularity for SVM, used in buffer * migration and restoration of backing memory when handling @@ -1037,6 +1038,13 @@ module_param_named(user_partt_mode, amdgpu_user_partt_mode, uint, 0444); module_param(enforce_isolation, bool, 0444); MODULE_PARM_DESC(enforce_isolation, "enforce process isolation between graphics and compute . enforce_isolation = on"); +/** + * DOC: modeset (int) + * Override nomodeset (1 = override, -1 = auto). The default is -1 (auto). + */ +MODULE_PARM_DESC(modeset, "Override nomodeset (1 = enable, -1 = auto)"); +module_param_named(modeset, amdgpu_modeset, int, 0444); + /** * DOC: seamless (int) * Seamless boot will keep the image on the screen during the boot process. @@ -2257,6 +2265,12 @@ static int amdgpu_pci_probe(struct pci_dev *pdev, int ret, retry = 0, i; bool supports_atomic = false; + if ((pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA || + (pdev->class >> 8) == PCI_CLASS_DISPLAY_OTHER) { + if (drm_firmware_drivers_only() && amdgpu_modeset == -1) + return -EINVAL; + } + /* skip devices which are owned by radeon */ for (i = 0; i < ARRAY_SIZE(amdgpu_unsupported_pciidlist); i++) { if (amdgpu_unsupported_pciidlist[i] == pdev->device)