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| author |   Ben Skeggs <bskeggs@redhat.com> | 2018-07-09 16:07:40 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2019-02-20 09:00:00 +1000 |
| commit | 71871aa6df5009ebf39ae94d15d0e9836bf91c03 (patch) | |
| tree | 72fbc1234d977405cc407abdbc2d4a7f34451100 /drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h | |
| parent | drm/nouveau/mmu: add a privileged method to directly manage PTEs (diff) | |
| download | wireguard-linux-71871aa6df5009ebf39ae94d15d0e9836bf91c03.tar.xz wireguard-linux-71871aa6df5009ebf39ae94d15d0e9836bf91c03.zip | |
drm/nouveau/mmu/gp100-: add privileged methods for fault replay/cancel
Host methods exist to do at least some of what we need, but we are not
currently pushing replay/cancels through a channel like UVM does as it's
not clear whether it's necessary in our case (UVM also updates PTEs with
the GPU).
UVM also pushes a software method for fault cancels on Pascal, seemingly
because the host methods don't appear to be sufficient. If/when we want
to push the replay/cancel on the GPU, we can re-purpose the cancellation
code here to implement that swmthd.
Keep it simple for now, until we figure out exactly what we need here.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h index 3c74bba03138..e85f19fdc597 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmm.h @@ -145,6 +145,9 @@ struct nvkm_vmm_func { struct nvkm_vmm_map *); void (*flush)(struct nvkm_vmm *, int depth); + int (*mthd)(struct nvkm_vmm *, struct nvkm_client *, + u32 mthd, void *argv, u32 argc); + void (*invalidate_pdb)(struct nvkm_vmm *, u64 addr); u64 page_block; @@ -220,6 +223,7 @@ int gm200_vmm_join(struct nvkm_vmm *, struct nvkm_memory *); int gp100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *); int gp100_vmm_valid(struct nvkm_vmm *, void *, u32, struct nvkm_vmm_map *); void gp100_vmm_flush(struct nvkm_vmm *, int); +int gp100_vmm_mthd(struct nvkm_vmm *, struct nvkm_client *, u32, void *, u32); void gp100_vmm_invalidate_pdb(struct nvkm_vmm *, u64 addr); int gv100_vmm_join(struct nvkm_vmm *, struct nvkm_memory *); |