1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Simple pci display device.
5 * Framebuffer memory is pci bar 0.
6 * Configuration (read-only) is in pci config space.
7 * Format field uses drm fourcc codes.
8 * ATM only DRM_FORMAT_XRGB8888 is supported.
12 #define MDPY_PCI_VENDOR_ID PCI_VENDOR_ID_REDHAT
13 #define MDPY_PCI_DEVICE_ID 0x000f
14 #define MDPY_PCI_SUBVENDOR_ID PCI_SUBVENDOR_ID_REDHAT_QUMRANET
15 #define MDPY_PCI_SUBDEVICE_ID PCI_SUBDEVICE_ID_QEMU
17 /* pci cfg space offsets for fb config (dword) */
18 #define MDPY_VENDORCAP_OFFSET 0x40
19 #define MDPY_VENDORCAP_SIZE 0x10
20 #define MDPY_FORMAT_OFFSET (MDPY_VENDORCAP_OFFSET + 0x04)
21 #define MDPY_WIDTH_OFFSET (MDPY_VENDORCAP_OFFSET + 0x08)
22 #define MDPY_HEIGHT_OFFSET (MDPY_VENDORCAP_OFFSET + 0x0c)