xref: /openbmc/linux/samples/vfio-mdev/mdpy-defs.h (revision 2575b2f3)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Simple pci display device.
4  *
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.
9  */
10 
11 /* pci ids */
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
16 
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)
23