r = amdgpu_init(adev);
if (r) {
+ /* failed in exclusive mode due to timeout */
+ if (amdgpu_sriov_vf(adev) &&
+ !amdgpu_sriov_runtime(adev) &&
+ amdgpu_virt_mmio_blocked(adev) &&
+ !amdgpu_virt_wait_reset(adev)) {
+ dev_err(adev->dev, "VF exclusive mode timeout\n");
+ r = -EAGAIN;
+ goto failed;
+ }
dev_err(adev->dev, "amdgpu_init failed\n");
amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_AMDGPU_INIT_FAIL, 0, 0);
amdgpu_fini(adev);
amdgpu_vf_error_trans_all(adev);
if (runtime)
vga_switcheroo_fini_domain_pm_ops(adev->dev);
+
return r;
}
int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
{
struct amdgpu_device *adev;
- int r, acpi_status;
+ int r, acpi_status, retry = 0;
#ifdef CONFIG_DRM_AMDGPU_SI
if (!amdgpu_si_support) {
}
}
#endif
+retry_init:
adev = kzalloc(sizeof(struct amdgpu_device), GFP_KERNEL);
if (adev == NULL) {
* VRAM allocation
*/
r = amdgpu_device_init(adev, dev, dev->pdev, flags);
- if (r) {
+ if (r == -EAGAIN && ++retry <= 3) {
+ adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME;
+ adev->virt.ops = NULL;
+ amdgpu_device_fini(adev);
+ kfree(adev);
+ dev->dev_private = NULL;
+ /* Don't request EX mode too frequently which is attacking */
+ msleep(5000);
+ dev_err(&dev->pdev->dev, "retry init %d\n", retry);
+ goto retry_init;
+ } else if (r) {
dev_err(&dev->pdev->dev, "Fatal error during GPU init\n");
goto out;
}