d61fc96f47
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>
22 lines
786 B
C
22 lines
786 B
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Simple pci display device.
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*
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* Framebuffer memory is pci bar 0.
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* Configuration (read-only) is in pci config space.
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* Format field uses drm fourcc codes.
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* ATM only DRM_FORMAT_XRGB8888 is supported.
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*/
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/* pci ids */
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#define MDPY_PCI_VENDOR_ID 0x1b36 /* redhat */
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#define MDPY_PCI_DEVICE_ID 0x000f
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#define MDPY_PCI_SUBVENDOR_ID PCI_SUBVENDOR_ID_REDHAT_QUMRANET
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#define MDPY_PCI_SUBDEVICE_ID PCI_SUBDEVICE_ID_QEMU
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/* pci cfg space offsets for fb config (dword) */
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#define MDPY_VENDORCAP_OFFSET 0x40
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#define MDPY_VENDORCAP_SIZE 0x10
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#define MDPY_FORMAT_OFFSET (MDPY_VENDORCAP_OFFSET + 0x04)
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#define MDPY_WIDTH_OFFSET (MDPY_VENDORCAP_OFFSET + 0x08)
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#define MDPY_HEIGHT_OFFSET (MDPY_VENDORCAP_OFFSET + 0x0c)
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