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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 13:32:29 +1000 |
| commit | e12cf6ad43888c152c3b2edb59525587cd98a227 (patch) | |
| tree | a1e15cd9b94a45de0b1025cf78e451fca68bc322 /drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c | |
| parent | b597764327e1af1b4948f6e7478acc5c7f1f6c49 (diff) | |
| download | linux-e12cf6ad43888c152c3b2edb59525587cd98a227.tar.bz2 | |
drm/nouveau/mmu/gm200,gm20b: implement new vmm backend
Adds support for:
- 64KiB big page size.
- System-memory PTs.
- LPTE "invalid" state.
- (Tegra) Use of video memory aperture.
- Sparse PDEs/PTEs.
- Additional blocklinear kinds.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c index 43138560b108..a1676a4644fe 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c @@ -24,16 +24,44 @@ #include <nvif/ifb00d.h> #include <nvif/unpack.h> +static void +gm200_vmm_pgt_sparse(struct nvkm_vmm *vmm, + struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes) +{ + /* VALID_FALSE + VOL tells the MMU to treat the PTE as sparse. */ + VMM_FO064(pt, vmm, ptei * 8, BIT_ULL(32) /* VOL. */, ptes); +} + static const struct nvkm_vmm_desc_func gm200_vmm_spt = { + .unmap = gf100_vmm_pgt_unmap, + .sparse = gm200_vmm_pgt_sparse, + .mem = gf100_vmm_pgt_mem, + .dma = gf100_vmm_pgt_dma, + .sgl = gf100_vmm_pgt_sgl, }; static const struct nvkm_vmm_desc_func gm200_vmm_lpt = { + .invalid = gk104_vmm_lpt_invalid, + .unmap = gf100_vmm_pgt_unmap, + .sparse = gm200_vmm_pgt_sparse, + .mem = gf100_vmm_pgt_mem, }; +static void +gm200_vmm_pgd_sparse(struct nvkm_vmm *vmm, + struct nvkm_mmu_pt *pt, u32 pdei, u32 pdes) +{ + /* VALID_FALSE + VOL_BIG tells the MMU to treat the PDE as sparse. */ + VMM_FO064(pt, vmm, pdei * 8, BIT_ULL(35) /* VOL_BIG. */, pdes); +} + static const struct nvkm_vmm_desc_func gm200_vmm_pgd = { + .unmap = gf100_vmm_pgt_unmap, + .sparse = gm200_vmm_pgd_sparse, + .pde = gf100_vmm_pgd_pde, }; const struct nvkm_vmm_desc @@ -82,6 +110,9 @@ static const struct nvkm_vmm_func gm200_vmm_17 = { .join = gm200_vmm_join, .part = gf100_vmm_part, + .aper = gf100_vmm_aper, + .valid = gf100_vmm_valid, + .flush = gf100_vmm_flush, .page = { { 27, &gm200_vmm_desc_17_17[1], NVKM_VMM_PAGE_Sxxx }, { 17, &gm200_vmm_desc_17_17[0], NVKM_VMM_PAGE_SVxC }, @@ -94,6 +125,9 @@ static const struct nvkm_vmm_func gm200_vmm_16 = { .join = gm200_vmm_join, .part = gf100_vmm_part, + .aper = gf100_vmm_aper, + .valid = gf100_vmm_valid, + .flush = gf100_vmm_flush, .page = { { 27, &gm200_vmm_desc_16_16[1], NVKM_VMM_PAGE_Sxxx }, { 16, &gm200_vmm_desc_16_16[0], NVKM_VMM_PAGE_SVxC }, |