Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Ben Skeggs | 2022 | 100.00% | 3 | 100.00% |
Total | 2022 | 3 |
/* * 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 <subdev/fb.h> #include <subdev/timer.h> #include <engine/gr.h> #include <nvif/if500d.h> #include <nvif/unpack.h> static inline void nv50_vmm_pgt_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr) { u64 next = addr + map->type, data; u32 pten; int log2blk; map->type += ptes * map->ctag; while (ptes) { for (log2blk = 7; log2blk >= 0; log2blk--) { pten = 1 << log2blk; if (ptes >= pten && IS_ALIGNED(ptei, pten)) break; } data = next | (log2blk << 7); next += pten * map->next; ptes -= pten; while (pten--) VMM_WO064(pt, vmm, ptei++ * 8, data); } } static void nv50_vmm_pgt_sgl(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes, struct nvkm_vmm_map *map) { VMM_MAP_ITER_SGL(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte); } static void nv50_vmm_pgt_dma(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes, struct nvkm_vmm_map *map) { if (map->page->shift == PAGE_SHIFT) { VMM_SPAM(vmm, "DMAA %08x %08x PTE(s)", ptei, ptes); nvkm_kmap(pt->memory); while (ptes--) { const u64 data = *map->dma++ + map->type; VMM_WO064(pt, vmm, ptei++ * 8, data); map->type += map->ctag; } nvkm_done(pt->memory); return; } VMM_MAP_ITER_DMA(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte); } static void nv50_vmm_pgt_mem(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes, struct nvkm_vmm_map *map) { VMM_MAP_ITER_MEM(vmm, pt, ptei, ptes, map, nv50_vmm_pgt_pte); } static void nv50_vmm_pgt_unmap(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes) { VMM_FO064(pt, vmm, ptei * 8, 0ULL, ptes); } static const struct nvkm_vmm_desc_func nv50_vmm_pgt = { .unmap = nv50_vmm_pgt_unmap, .mem = nv50_vmm_pgt_mem, .dma = nv50_vmm_pgt_dma, .sgl = nv50_vmm_pgt_sgl, }; static bool nv50_vmm_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgt, u64 *pdata) { struct nvkm_mmu_pt *pt; u64 data = 0xdeadcafe00000000ULL; if (pgt && (pt = pgt->pt[0])) { switch (pgt->page) { case 16: data = 0x00000001; break; case 12: data = 0x00000003; switch (nvkm_memory_size(pt->memory)) { case 0x100000: data |= 0x00000000; break; case 0x040000: data |= 0x00000020; break; case 0x020000: data |= 0x00000040; break; case 0x010000: data |= 0x00000060; break; default: WARN_ON(1); return false; } break; default: WARN_ON(1); return false; } switch (nvkm_memory_target(pt->memory)) { case NVKM_MEM_TARGET_VRAM: data |= 0x00000000; break; case NVKM_MEM_TARGET_HOST: data |= 0x00000008; break; case NVKM_MEM_TARGET_NCOH: data |= 0x0000000c; break; default: WARN_ON(1); return false; } data |= pt->addr; } *pdata = data; return true; } static void nv50_vmm_pgd_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgd, u32 pdei) { struct nvkm_vmm_join *join; u32 pdeo = vmm->mmu->func->vmm.pd_offset + (pdei * 8); u64 data; if (!nv50_vmm_pde(vmm, pgd->pde[pdei], &data)) return; list_for_each_entry(join, &vmm->join, head) { nvkm_kmap(join->inst); nvkm_wo64(join->inst, pdeo, data); nvkm_done(join->inst); } } static const struct nvkm_vmm_desc_func nv50_vmm_pgd = { .pde = nv50_vmm_pgd_pde, }; const struct nvkm_vmm_desc nv50_vmm_desc_12[] = { { PGT, 17, 8, 0x1000, &nv50_vmm_pgt }, { PGD, 11, 0, 0x0000, &nv50_vmm_pgd }, {} }; const struct nvkm_vmm_desc nv50_vmm_desc_16[] = { { PGT, 13, 8, 0x1000, &nv50_vmm_pgt }, { PGD, 11, 0, 0x0000, &nv50_vmm_pgd }, {} }; void nv50_vmm_flush(struct nvkm_vmm *vmm, int level) { struct nvkm_subdev *subdev = &vmm->mmu->subdev; struct nvkm_device *device = subdev->device; int i, id; mutex_lock(&subdev->mutex); for (i = 0; i < NVKM_SUBDEV_NR; i++) { if (!atomic_read(&vmm->engref[i])) continue; /* unfortunate hw bug workaround... */ if (i == NVKM_ENGINE_GR && device->gr) { int ret = nvkm_gr_tlb_flush(device->gr); if (ret != -ENODEV) continue; } switch (i) { case NVKM_ENGINE_GR : id = 0x00; break; case NVKM_ENGINE_VP : case NVKM_ENGINE_MSPDEC: id = 0x01; break; case NVKM_SUBDEV_BAR : id = 0x06; break; case NVKM_ENGINE_MSPPP : case NVKM_ENGINE_MPEG : id = 0x08; break; case NVKM_ENGINE_BSP : case NVKM_ENGINE_MSVLD : id = 0x09; break; case NVKM_ENGINE_CIPHER: case NVKM_ENGINE_SEC : id = 0x0a; break; case NVKM_ENGINE_CE0 : id = 0x0d; break; default: continue; } nvkm_wr32(device, 0x100c80, (id << 16) | 1); if (nvkm_msec(device, 2000, if (!(nvkm_rd32(device, 0x100c80) & 0x00000001)) break; ) < 0) nvkm_error(subdev, "%s mmu invalidate timeout\n", nvkm_subdev_name[i]); } mutex_unlock(&subdev->mutex); } int nv50_vmm_valid(struct nvkm_vmm *vmm, void *argv, u32 argc, struct nvkm_vmm_map *map) { const struct nvkm_vmm_page *page = map->page; union { struct nv50_vmm_map_vn vn; struct nv50_vmm_map_v0 v0; } *args = argv; struct nvkm_device *device = vmm->mmu->subdev.device; struct nvkm_ram *ram = device->fb->ram; struct nvkm_memory *memory = map->memory; u8 aper, kind, comp, priv, ro; int kindn, ret = -ENOSYS; const u8 *kindm; map->type = map->ctag = 0; map->next = 1 << page->shift; if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) { ro = !!args->v0.ro; priv = !!args->v0.priv; kind = args->v0.kind & 0x7f; comp = args->v0.comp & 0x03; } else if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) { ro = 0; priv = 0; kind = 0x00; comp = 0; } else { VMM_DEBUG(vmm, "args"); return ret; } switch (nvkm_memory_target(memory)) { case NVKM_MEM_TARGET_VRAM: if (ram->stolen) { map->type |= ram->stolen; aper = 3; } else { aper = 0; } break; case NVKM_MEM_TARGET_HOST: aper = 2; break; case NVKM_MEM_TARGET_NCOH: aper = 3; break; default: WARN_ON(1); return -EINVAL; } kindm = vmm->mmu->func->kind(vmm->mmu, &kindn); if (kind >= kindn || kindm[kind] == 0x7f) { VMM_DEBUG(vmm, "kind %02x", kind); return -EINVAL; } if (map->mem && map->mem->type != kindm[kind]) { VMM_DEBUG(vmm, "kind %02x bankswz: %d %d", kind, kindm[kind], map->mem->type); return -EINVAL; } if (comp) { u32 tags = (nvkm_memory_size(memory) >> 16) * comp; if (aper != 0 || !(page->type & NVKM_VMM_PAGE_COMP)) { VMM_DEBUG(vmm, "comp %d %02x", aper, page->type); return -EINVAL; } ret = nvkm_memory_tags_get(memory, device, tags, NULL, &map->tags); if (ret) { VMM_DEBUG(vmm, "comp %d", ret); return ret; } if (map->tags->mn) { u32 tags = map->tags->mn->offset + (map->offset >> 16); map->ctag |= (u64)comp << 49; map->type |= (u64)comp << 47; map->type |= (u64)tags << 49; map->next |= map->ctag; } } map->type |= BIT(0); /* Valid. */ map->type |= (u64)ro << 3; map->type |= (u64)aper << 4; map->type |= (u64)priv << 6; map->type |= (u64)kind << 40; return 0; } void nv50_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst) { struct nvkm_vmm_join *join; list_for_each_entry(join, &vmm->join, head) { if (join->inst == inst) { list_del(&join->head); kfree(join); break; } } } int nv50_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst) { const u32 pd_offset = vmm->mmu->func->vmm.pd_offset; struct nvkm_vmm_join *join; int ret = 0; u64 data; u32 pdei; if (!(join = kmalloc(sizeof(*join), GFP_KERNEL))) return -ENOMEM; join->inst = inst; list_add_tail(&join->head, &vmm->join); nvkm_kmap(join->inst); for (pdei = vmm->start >> 29; pdei <= (vmm->limit - 1) >> 29; pdei++) { if (!nv50_vmm_pde(vmm, vmm->pd->pde[pdei], &data)) { ret = -EINVAL; break; } nvkm_wo64(join->inst, pd_offset + (pdei * 8), data); } nvkm_done(join->inst); return ret; } static const struct nvkm_vmm_func nv50_vmm = { .join = nv50_vmm_join, .part = nv50_vmm_part, .valid = nv50_vmm_valid, .flush = nv50_vmm_flush, .page_block = 1 << 29, .page = { { 16, &nv50_vmm_desc_16[0], NVKM_VMM_PAGE_xVxC }, { 12, &nv50_vmm_desc_12[0], NVKM_VMM_PAGE_xVHx }, {} } }; int nv50_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 nv04_vmm_new_(&nv50_vmm, mmu, 0, addr, size, argv, argc, key, name, pvmm); }
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