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| author | Ben Skeggs <bskeggs@redhat.com> | 2017-11-01 03:56:19 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2017-11-02 13:32:30 +1000 |
| commit | f9400afb1e11c33830bd99a0c9fafe3f4d07a7cc (patch) | |
| tree | ed87a28425687111ecdbc16d02857ff1a11b16c0 /drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c | |
| parent | e12cf6ad43888c152c3b2edb59525587cd98a227 (diff) | |
| download | linux-f9400afb1e11c33830bd99a0c9fafe3f4d07a7cc.tar.bz2 | |
drm/nouveau/mmu/gp100,gp10b: implement new vmm backend
Adds support for:
- 64KiB/2MiB big page sizes (128KiB not supported by HW with new PT layout).
- System-memory PTs.
- LPTE "invalid" state.
- (Tegra) Use of video memory aperture.
- Sparse PDEs/PTEs.
- Additional blocklinear kinds.
- 49-bit address-space.
GP100 supports an entirely new 5-level page table layout that provides
an expanded 49-bit address-space. It also supports the layout present
on previous generations, which we've been making do with until now.
This commit implements support for the new layout, and enables it by
default.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c index ddd44ad797b7..faf5a7e9265e 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgf100.c @@ -182,7 +182,7 @@ gf100_vmm_flush_(struct nvkm_vmm *vmm, int depth) { struct nvkm_subdev *subdev = &vmm->mmu->subdev; struct nvkm_device *device = subdev->device; - u32 type; + u32 type = depth << 24; type = 0x00000001; /* PAGE_ALL */ if (atomic_read(&vmm->engref[NVKM_SUBDEV_BAR])) |