gpu/drm/drm_aperture.c

1 // SPDX-License-Identifier: MIT
15  * graphics drivers, such as EFI-GOP or VESA, early during the boot process.
17  * hardware-specific driver. To take over the device the dedicated driver
19  * ownership of DRM framebuffer memory and hand-over between drivers.
27  * .. code-block:: c
75  * .. code-block:: c
83  *			return -EINVAL;
84  *		base = mem->start;
119  * devm_aperture_acquire_from_firmware - Acquires ownership of a firmware framebuffer
133  * The function fails if the framebuffer range, or parts of it, is currently
147 	if (drm_WARN_ON(dev, !dev_is_platform(dev->dev)))  in devm_aperture_acquire_from_firmware()
148 		return -EINVAL;  in devm_aperture_acquire_from_firmware()
150 	pdev = to_platform_device(dev->dev);  in devm_aperture_acquire_from_firmware()
157  * drm_aperture_remove_conflicting_framebuffers - remove existing framebuffers in the given range
171 	return aperture_remove_conflicting_devices(base, size, req_driver->name);  in drm_aperture_remove_conflicting_framebuffers()
176  * drm_aperture_remove_conflicting_pci_framebuffers - remove existing framebuffers for PCI devices
190 	return aperture_remove_conflicting_pci_devices(pdev, req_driver->name);  in drm_aperture_remove_conflicting_pci_framebuffers()