diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c | 185 |
1 files changed, 185 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 new file mode 100644 index 000000000000..a1676a4644fe --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmgm200.c @@ -0,0 +1,185 @@ +/* + * Copyright 2017 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#include "vmm.h" + +#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 +gm200_vmm_desc_17_12[] = { + { SPT, 15, 8, 0x1000, &gm200_vmm_spt }, + { PGD, 13, 8, 0x1000, &gm200_vmm_pgd }, + {} +}; + +const struct nvkm_vmm_desc +gm200_vmm_desc_17_17[] = { + { LPT, 10, 8, 0x1000, &gm200_vmm_lpt }, + { PGD, 13, 8, 0x1000, &gm200_vmm_pgd }, + {} +}; + +const struct nvkm_vmm_desc +gm200_vmm_desc_16_12[] = { + { SPT, 14, 8, 0x1000, &gm200_vmm_spt }, + { PGD, 14, 8, 0x1000, &gm200_vmm_pgd }, + {} +}; + +const struct nvkm_vmm_desc +gm200_vmm_desc_16_16[] = { + { LPT, 10, 8, 0x1000, &gm200_vmm_lpt }, + { PGD, 14, 8, 0x1000, &gm200_vmm_pgd }, + {} +}; + +int +gm200_vmm_join_(struct nvkm_vmm *vmm, struct nvkm_memory *inst, u64 base) +{ + if (vmm->func->page[1].shift == 16) + base |= BIT_ULL(11); + return gf100_vmm_join_(vmm, inst, base); +} + +int +gm200_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst) +{ + return gm200_vmm_join_(vmm, inst, 0); +} + +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 }, + { 12, &gm200_vmm_desc_17_12[0], NVKM_VMM_PAGE_SVHx }, + {} + } +}; + +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 }, + { 12, &gm200_vmm_desc_16_12[0], NVKM_VMM_PAGE_SVHx }, + {} + } +}; + +int +gm200_vmm_new_(const struct nvkm_vmm_func *func_16, + const struct nvkm_vmm_func *func_17, + struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + const struct nvkm_vmm_func *func; + union { + struct gm200_vmm_vn vn; + struct gm200_vmm_v0 v0; + } *args = argv; + int ret = -ENOSYS; + + if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { + switch (args->v0.bigpage) { + case 16: func = func_16; break; + case 17: func = func_17; break; + default: + return -EINVAL; + } + } else + if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) { + func = func_17; + } else + return ret; + + return nvkm_vmm_new_(func, mmu, 0, addr, size, key, name, pvmm); +} + +int +gm200_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc, + struct lock_class_key *key, const char *name, + struct nvkm_vmm **pvmm) +{ + return gm200_vmm_new_(&gm200_vmm_16, &gm200_vmm_17, mmu, addr, + size, argv, argc, key, name, pvmm); +} + +int +gm200_vmm_new_fixed(struct nvkm_mmu *mmu, u64 addr, u64 size, + void *argv, u32 argc, struct lock_class_key *key, + const char *name, struct nvkm_vmm **pvmm) +{ + return gf100_vmm_new_(&gm200_vmm_16, &gm200_vmm_17, mmu, addr, + size, argv, argc, key, name, pvmm); +} |