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# 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.
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