| # SPDX-License-Identifier: GPL-2.0-only |
| config DRM_CIRRUS_QEMU |
| tristate "Cirrus driver for QEMU emulated device" |
| depends on DRM && PCI && MMU |
| select DRM_KMS_HELPER |
| select DRM_GEM_SHMEM_HELPER |
| help |
| This is a KMS driver for emulated cirrus device in qemu. |
| It is *NOT* intended for real cirrus devices. This requires |
| the modesetting userspace X.org driver. |
| |
| Cirrus is obsolete, the hardware was designed in the 90ies |
| and can't keep up with todays needs. More background: |
| https://www.kraxel.org/blog/2014/10/qemu-using-cirrus-considered-harmful/ |
| |
| Better alternatives are: |
| - stdvga (DRM_BOCHS, qemu -vga std, default in qemu 2.2+) |
| - qxl (DRM_QXL, qemu -vga qxl, works best with spice) |
| - virtio (DRM_VIRTIO_GPU), qemu -vga virtio) |
