drm/hyperv/hyperv_drm_drv.c

1 // SPDX-License-Identifier: GPL-2.0-only
21 #define DRIVER_DESC "DRM driver for Hyper-V synthetic video device"
72 	struct drm_device *dev = &hv->dev;  in hyperv_setup_vram()
75 	hv->fb_size = (unsigned long)hv->mmio_megabytes * 1024 * 1024;  in hyperv_setup_vram()
77 	ret = vmbus_allocate_mmio(&hv->mem, hdev, 0, -1, hv->fb_size, 0x100000,  in hyperv_setup_vram()
81 		return -ENOMEM;  in hyperv_setup_vram()
89 	hv->vram = ioremap_cache(hv->mem->start, hv->fb_size);  in hyperv_setup_vram()
90 	if (!hv->vram) {  in hyperv_setup_vram()
92 		ret = -ENOMEM;  in hyperv_setup_vram()
96 	hv->fb_base = hv->mem->start;  in hyperv_setup_vram()
100 	vmbus_free_mmio(hv->mem->start, hv->fb_size);  in hyperv_setup_vram()
111 	hv = devm_drm_dev_alloc(&hdev->device, &hyperv_driver,  in hyperv_vmbus_probe()
116 	dev = &hv->dev;  in hyperv_vmbus_probe()
117 	init_completion(&hv->wait);  in hyperv_vmbus_probe()
119 	hv->hdev = hdev;  in hyperv_vmbus_probe()
138 	ret = hyperv_update_vram_location(hdev, hv->fb_base);  in hyperv_vmbus_probe()
157 	vmbus_free_mmio(hv->mem->start, hv->fb_size);  in hyperv_vmbus_probe()
159 	vmbus_close(hdev->channel);  in hyperv_vmbus_probe()
172 	vmbus_close(hdev->channel);  in hyperv_vmbus_remove()
175 	vmbus_free_mmio(hv->mem->start, hv->fb_size);  in hyperv_vmbus_remove()
192 	vmbus_close(hdev->channel);  in hyperv_vmbus_suspend()
207 	ret = hyperv_update_vram_location(hdev, hv->fb_base);  in hyperv_vmbus_resume()
215 	/* Synthetic Video Device GUID */
238 		return -ENODEV;  in hyperv_init()
260 MODULE_DESCRIPTION("DRM driver for Hyper-V synthetic video device");