# SPDX-License-Identifier: GPL-2.0-only
config DRM_MGAG200
	tristate "Matrox G200"
	depends on DRM && PCI && MMU
	select DRM_GEM_SHMEM_HELPER
	select DRM_KMS_HELPER
	select I2C
	select I2C_ALGOBIT
	help
	 This is a KMS driver for Matrox G200 chips. It supports the original
	 MGA G200 desktop chips and the server variants. It requires 0.3.0
	 of the modesetting userspace driver, and a version of mga driver
	 that will fail on KMS enabled devices.

config DRM_MGAG200_IOBURST_WORKAROUND
	bool "Disable buffer caching"
	depends on DRM_MGAG200 && PREEMPT_RT && X86
	help
	  Enable a workaround to avoid I/O bursts within the mgag200 driver at
	  the expense of overall display performance.
	  It restores the <v5.10 behavior, by mapping the framebuffer in system
	  RAM as Write-Combining, and flushing the cache after each write.
	  This is only useful on x86_64 if you want to run processes with
	  deterministic latency.
	  If unsure, say N.