samples/vfio-mdev/mdpy-defs.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /*
0003  * Simple pci display device.
0004  *
0005  * Framebuffer memory is pci bar 0.
0006  * Configuration (read-only) is in pci config space.
0007  * Format field uses drm fourcc codes.
0008  * ATM only DRM_FORMAT_XRGB8888 is supported.
0009  */
0010
0011 /* pci ids */
0012 #define MDPY_PCI_VENDOR_ID  PCI_VENDOR_ID_REDHAT
0013 #define MDPY_PCI_DEVICE_ID  0x000f
0014 #define MDPY_PCI_SUBVENDOR_ID   PCI_SUBVENDOR_ID_REDHAT_QUMRANET
0015 #define MDPY_PCI_SUBDEVICE_ID   PCI_SUBDEVICE_ID_QEMU
0016
0017 /* pci cfg space offsets for fb config (dword) */
0018 #define MDPY_VENDORCAP_OFFSET   0x40
0019 #define MDPY_VENDORCAP_SIZE     0x10
0020 #define MDPY_FORMAT_OFFSET  (MDPY_VENDORCAP_OFFSET + 0x04)
0021 #define MDPY_WIDTH_OFFSET   (MDPY_VENDORCAP_OFFSET + 0x08)
0022 #define MDPY_HEIGHT_OFFSET  (MDPY_VENDORCAP_OFFSET + 0x0c)