diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2018-05-08 20:39:48 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2019-02-20 09:00:00 +1000 |
| commit | ab2ee9ffa38ac1bcb7321a615872739e3e240b75 (patch) | |
| tree | 8adeb99e37056f91706b3b16f3f900da84f94a6c /drivers/gpu/drm/nouveau/include | |
| parent | 71871aa6df5009ebf39ae94d15d0e9836bf91c03 (diff) | |
| download | linux-ab2ee9ffa38ac1bcb7321a615872739e3e240b75.tar.gz | |
drm/nouveau/mmu/gp100-: support vmms with gcc/tex replayable faults enabled
Some GPU units are capable of supporting "replayable" page faults, where
the execution unit will wait for SW to fixup GPU page tables rather than
triggering a channel-fatal fault.
This feature isn't useful (it's harmful, even) unless something like HMM
is being used to manage events appearing in the replayable fault buffer,
so, it's disabled by default.
This commit allows a client to request it be enabled.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/include')
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvif/ifc00d.h | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvif/ifc00d.h b/drivers/gpu/drm/nouveau/include/nvif/ifc00d.h index 33ff6c791643..4cabd613a280 100644 --- a/drivers/gpu/drm/nouveau/include/nvif/ifc00d.h +++ b/drivers/gpu/drm/nouveau/include/nvif/ifc00d.h @@ -6,6 +6,12 @@ struct gp100_vmm_vn { /* nvif_vmm_vX ... */ }; +struct gp100_vmm_v0 { + /* nvif_vmm_vX ... */ + __u8 version; + __u8 fault_replay; +}; + struct gp100_vmm_map_vn { /* nvif_vmm_map_vX ... */ }; diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h index 8b117cbc8538..28ade86f74c5 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h @@ -45,6 +45,8 @@ struct nvkm_vmm { dma_addr_t null; void *nullp; + + bool replay; }; int nvkm_vmm_new(struct nvkm_device *, u64 addr, u64 size, void *argv, u32 argc, |