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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:37 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:37 +0000 |
| commit | 94ac2ab3fff96814d7460a27a0e9d004abbd4128 (patch) | |
| tree | 9a4eb8cc234b540b0f4b93363109cdd37a20540b /drivers/gpu/drm/mgag200/Kconfig | |
| parent | Adding debian version 6.8.12-1. (diff) | |
| download | linux-94ac2ab3fff96814d7460a27a0e9d004abbd4128.tar.xz linux-94ac2ab3fff96814d7460a27a0e9d004abbd4128.zip | |
Merging upstream version 6.9.2.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/mgag200/Kconfig')
| -rw-r--r-- | drivers/gpu/drm/mgag200/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mgag200/Kconfig b/drivers/gpu/drm/mgag200/Kconfig index b28c5e4828..5e4d48df48 100644 --- a/drivers/gpu/drm/mgag200/Kconfig +++ b/drivers/gpu/drm/mgag200/Kconfig @@ -11,3 +11,15 @@ config DRM_MGAG200 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. |