linux/samples/vfio-mdev/mdpy-defs.h
Gerd Hoffmann d61fc96f47 sample: vfio mdev display - host device
Simple framebuffer display, demo-ing the vfio region display interface
(VFIO_GFX_PLANE_TYPE_REGION).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2018-06-08 10:24:09 -06:00

23 lines
786 B
C

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* Simple pci display device.
*
* Framebuffer memory is pci bar 0.
* Configuration (read-only) is in pci config space.
* Format field uses drm fourcc codes.
* ATM only DRM_FORMAT_XRGB8888 is supported.
*/
/* pci ids */
#define MDPY_PCI_VENDOR_ID 0x1b36 /* redhat */
#define MDPY_PCI_DEVICE_ID 0x000f
#define MDPY_PCI_SUBVENDOR_ID PCI_SUBVENDOR_ID_REDHAT_QUMRANET
#define MDPY_PCI_SUBDEVICE_ID PCI_SUBDEVICE_ID_QEMU
/* pci cfg space offsets for fb config (dword) */
#define MDPY_VENDORCAP_OFFSET 0x40
#define MDPY_VENDORCAP_SIZE 0x10
#define MDPY_FORMAT_OFFSET (MDPY_VENDORCAP_OFFSET + 0x04)
#define MDPY_WIDTH_OFFSET (MDPY_VENDORCAP_OFFSET + 0x08)
#define MDPY_HEIGHT_OFFSET (MDPY_VENDORCAP_OFFSET + 0x0c)