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| author | Ben Skeggs <bskeggs@redhat.com> | 2018-07-05 04:57:12 +0200 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2019-02-20 00:00:02 +0100 |
| commit | eeaf06ac1a5584e41cf289f8351e446bb131374b (patch) | |
| tree | 4bd51901b98177c13c805fd61083156f0435d75a /drivers/gpu/drm/nouveau/Kconfig | |
| parent | drm/nouveau: prepare for enabling svm with existing userspace interfaces (diff) | |
| download | linux-eeaf06ac1a5584e41cf289f8351e446bb131374b.tar.xz linux-eeaf06ac1a5584e41cf289f8351e446bb131374b.zip | |
drm/nouveau/svm: initial support for shared virtual memory
This uses HMM to mirror a process' CPU page tables into a channel's page
tables, and keep them synchronised so that both the CPU and GPU are able
to access the same memory at the same virtual address.
While this code also supports Volta/Turing, it's only enabled for Pascal
GPUs currently due to channel recovery being unreliable right now on the
later GPUs.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/Kconfig')
| -rw-r--r-- | drivers/gpu/drm/nouveau/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/Kconfig b/drivers/gpu/drm/nouveau/Kconfig index 432c440223bb..e7b26a6f386f 100644 --- a/drivers/gpu/drm/nouveau/Kconfig +++ b/drivers/gpu/drm/nouveau/Kconfig @@ -71,3 +71,14 @@ config DRM_NOUVEAU_BACKLIGHT help Say Y here if you want to control the backlight of your display (e.g. a laptop panel). + +config DRM_NOUVEAU_SVM + bool "(EXPERIMENTAL) Enable SVM (Shared Virtual Memory) support" + depends on ARCH_HAS_HMM + depends on DRM_NOUVEAU + depends on STAGING + select HMM_MIRROR + default n + help + Say Y here if you want to enable experimental support for + Shared Virtual Memory (SVM). |