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| author | Ben Skeggs <bskeggs@redhat.com> | 2018-07-09 09:07:40 +0300 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2019-02-20 02:00:00 +0300 |
| commit | 71871aa6df5009ebf39ae94d15d0e9836bf91c03 (patch) | |
| tree | 72fbc1234d977405cc407abdbc2d4a7f34451100 /drivers/gpu/drm/nouveau/include/nvif | |
| parent | a5ff307fe1f2dfe91253e3c19586643a77b6ce52 (diff) | |
| download | linux-71871aa6df5009ebf39ae94d15d0e9836bf91c03.tar.xz | |
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/include/nvif')
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvif/if000c.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/nvif/ifc00d.h | 15 |
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/include/nvif/if000c.h b/drivers/gpu/drm/nouveau/include/nvif/if000c.h index 20374882ac8f..d6dd40f21eed 100644 --- a/drivers/gpu/drm/nouveau/include/nvif/if000c.h +++ b/drivers/gpu/drm/nouveau/include/nvif/if000c.h @@ -17,6 +17,7 @@ struct nvif_vmm_v0 { #define NVIF_VMM_V0_UNMAP 0x04 #define NVIF_VMM_V0_PFNMAP 0x05 #define NVIF_VMM_V0_PFNCLR 0x06 +#define NVIF_VMM_V0_MTHD(i) ((i) + 0x80) struct nvif_vmm_page_v0 { __u8 version; diff --git a/drivers/gpu/drm/nouveau/include/nvif/ifc00d.h b/drivers/gpu/drm/nouveau/include/nvif/ifc00d.h index 1d9c637859f3..33ff6c791643 100644 --- a/drivers/gpu/drm/nouveau/include/nvif/ifc00d.h +++ b/drivers/gpu/drm/nouveau/include/nvif/ifc00d.h @@ -18,4 +18,19 @@ struct gp100_vmm_map_v0 { __u8 priv; __u8 kind; }; + +#define GP100_VMM_VN_FAULT_REPLAY NVIF_VMM_V0_MTHD(0x00) +#define GP100_VMM_VN_FAULT_CANCEL NVIF_VMM_V0_MTHD(0x01) + +struct gp100_vmm_fault_replay_vn { +}; + +struct gp100_vmm_fault_cancel_v0 { + __u8 version; + __u8 hub; + __u8 gpc; + __u8 client; + __u8 pad04[4]; + __u64 inst; +}; #endif |