348 lines
9.1 KiB
C
348 lines
9.1 KiB
C
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/*
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* Copyright 2017 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "vmm.h"
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#include <subdev/fb.h>
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#include <subdev/ltc.h>
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#include <nvif/ifc00d.h>
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#include <nvif/unpack.h>
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static inline void
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gp100_vmm_pgt_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
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u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr)
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{
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u64 data = (addr >> 4) | map->type;
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map->type += ptes * map->ctag;
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while (ptes--) {
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VMM_WO064(pt, vmm, ptei++ * 8, data);
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data += map->next;
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}
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}
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static void
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gp100_vmm_pgt_sgl(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
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u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
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{
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VMM_MAP_ITER_SGL(vmm, pt, ptei, ptes, map, gp100_vmm_pgt_pte);
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}
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static void
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gp100_vmm_pgt_dma(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
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u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
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{
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if (map->page->shift == PAGE_SHIFT) {
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VMM_SPAM(vmm, "DMAA %08x %08x PTE(s)", ptei, ptes);
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nvkm_kmap(pt->memory);
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while (ptes--) {
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const u64 data = (*map->dma++ >> 4) | map->type;
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VMM_WO064(pt, vmm, ptei++ * 8, data);
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map->type += map->ctag;
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}
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nvkm_done(pt->memory);
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return;
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}
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VMM_MAP_ITER_DMA(vmm, pt, ptei, ptes, map, gp100_vmm_pgt_pte);
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}
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static void
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gp100_vmm_pgt_mem(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
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u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
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{
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VMM_MAP_ITER_MEM(vmm, pt, ptei, ptes, map, gp100_vmm_pgt_pte);
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}
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static void
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gp100_vmm_pgt_sparse(struct nvkm_vmm *vmm,
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struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes)
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{
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/* VALID_FALSE + VOL tells the MMU to treat the PTE as sparse. */
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VMM_FO064(pt, vmm, ptei * 8, BIT_ULL(3) /* VOL. */, ptes);
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}
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static const struct nvkm_vmm_desc_func
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gp100_vmm_desc_spt = {
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.unmap = gf100_vmm_pgt_unmap,
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.sparse = gp100_vmm_pgt_sparse,
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.mem = gp100_vmm_pgt_mem,
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.dma = gp100_vmm_pgt_dma,
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.sgl = gp100_vmm_pgt_sgl,
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};
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static void
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gp100_vmm_lpt_invalid(struct nvkm_vmm *vmm,
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struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes)
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{
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/* VALID_FALSE + PRIV tells the MMU to ignore corresponding SPTEs. */
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VMM_FO064(pt, vmm, ptei * 8, BIT_ULL(5) /* PRIV. */, ptes);
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}
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static const struct nvkm_vmm_desc_func
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gp100_vmm_desc_lpt = {
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.invalid = gp100_vmm_lpt_invalid,
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.unmap = gf100_vmm_pgt_unmap,
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.sparse = gp100_vmm_pgt_sparse,
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.mem = gp100_vmm_pgt_mem,
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};
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static inline void
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gp100_vmm_pd0_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
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u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr)
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{
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u64 data = (addr >> 4) | map->type;
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map->type += ptes * map->ctag;
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while (ptes--) {
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VMM_WO128(pt, vmm, ptei++ * 0x10, data, 0ULL);
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data += map->next;
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}
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}
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static void
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gp100_vmm_pd0_mem(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt,
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u32 ptei, u32 ptes, struct nvkm_vmm_map *map)
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{
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VMM_MAP_ITER_MEM(vmm, pt, ptei, ptes, map, gp100_vmm_pd0_pte);
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}
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static inline bool
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gp100_vmm_pde(struct nvkm_mmu_pt *pt, u64 *data)
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{
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switch (nvkm_memory_target(pt->memory)) {
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case NVKM_MEM_TARGET_VRAM: *data |= 1ULL << 1; break;
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case NVKM_MEM_TARGET_HOST: *data |= 2ULL << 1;
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*data |= BIT_ULL(3); /* VOL. */
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break;
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case NVKM_MEM_TARGET_NCOH: *data |= 3ULL << 1; break;
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default:
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WARN_ON(1);
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return false;
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}
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*data |= pt->addr >> 4;
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return true;
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}
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static void
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gp100_vmm_pd0_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgd, u32 pdei)
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{
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struct nvkm_vmm_pt *pgt = pgd->pde[pdei];
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struct nvkm_mmu_pt *pd = pgd->pt[0];
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u64 data[2] = {};
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if (pgt->pt[0] && !gp100_vmm_pde(pgt->pt[0], &data[0]))
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return;
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if (pgt->pt[1] && !gp100_vmm_pde(pgt->pt[1], &data[1]))
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return;
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nvkm_kmap(pd->memory);
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VMM_WO128(pd, vmm, pdei * 0x10, data[0], data[1]);
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nvkm_done(pd->memory);
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}
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static void
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gp100_vmm_pd0_sparse(struct nvkm_vmm *vmm,
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struct nvkm_mmu_pt *pt, u32 pdei, u32 pdes)
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{
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/* VALID_FALSE + VOL_BIG tells the MMU to treat the PDE as sparse. */
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VMM_FO128(pt, vmm, pdei * 0x10, BIT_ULL(3) /* VOL_BIG. */, 0ULL, pdes);
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}
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static void
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gp100_vmm_pd0_unmap(struct nvkm_vmm *vmm,
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struct nvkm_mmu_pt *pt, u32 pdei, u32 pdes)
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{
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VMM_FO128(pt, vmm, pdei * 0x10, 0ULL, 0ULL, pdes);
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}
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static const struct nvkm_vmm_desc_func
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gp100_vmm_desc_pd0 = {
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.unmap = gp100_vmm_pd0_unmap,
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.sparse = gp100_vmm_pd0_sparse,
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.pde = gp100_vmm_pd0_pde,
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.mem = gp100_vmm_pd0_mem,
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};
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static void
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gp100_vmm_pd1_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgd, u32 pdei)
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{
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struct nvkm_vmm_pt *pgt = pgd->pde[pdei];
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struct nvkm_mmu_pt *pd = pgd->pt[0];
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u64 data = 0;
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if (!gp100_vmm_pde(pgt->pt[0], &data))
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return;
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nvkm_kmap(pd->memory);
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VMM_WO064(pd, vmm, pdei * 8, data);
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nvkm_done(pd->memory);
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}
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static const struct nvkm_vmm_desc_func
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gp100_vmm_desc_pd1 = {
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.unmap = gf100_vmm_pgt_unmap,
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.sparse = gp100_vmm_pgt_sparse,
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.pde = gp100_vmm_pd1_pde,
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};
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const struct nvkm_vmm_desc
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gp100_vmm_desc_16[] = {
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{ LPT, 5, 8, 0x0100, &gp100_vmm_desc_lpt },
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{ PGD, 8, 16, 0x1000, &gp100_vmm_desc_pd0 },
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{ PGD, 9, 8, 0x1000, &gp100_vmm_desc_pd1 },
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{ PGD, 9, 8, 0x1000, &gp100_vmm_desc_pd1 },
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{ PGD, 2, 8, 0x1000, &gp100_vmm_desc_pd1 },
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{}
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};
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const struct nvkm_vmm_desc
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gp100_vmm_desc_12[] = {
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{ SPT, 9, 8, 0x1000, &gp100_vmm_desc_spt },
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{ PGD, 8, 16, 0x1000, &gp100_vmm_desc_pd0 },
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{ PGD, 9, 8, 0x1000, &gp100_vmm_desc_pd1 },
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{ PGD, 9, 8, 0x1000, &gp100_vmm_desc_pd1 },
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{ PGD, 2, 8, 0x1000, &gp100_vmm_desc_pd1 },
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{}
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};
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int
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gp100_vmm_valid(struct nvkm_vmm *vmm, void *argv, u32 argc,
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struct nvkm_vmm_map *map)
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{
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const enum nvkm_memory_target target = nvkm_memory_target(map->memory);
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const struct nvkm_vmm_page *page = map->page;
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union {
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struct gp100_vmm_map_vn vn;
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struct gp100_vmm_map_v0 v0;
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} *args = argv;
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struct nvkm_device *device = vmm->mmu->subdev.device;
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struct nvkm_memory *memory = map->memory;
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u8 kind, priv, ro, vol;
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int kindn, aper, ret = -ENOSYS;
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const u8 *kindm;
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map->next = (1ULL << page->shift) >> 4;
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map->type = 0;
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if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
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vol = !!args->v0.vol;
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ro = !!args->v0.ro;
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priv = !!args->v0.priv;
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kind = args->v0.kind;
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} else
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if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
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vol = target == NVKM_MEM_TARGET_HOST;
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ro = 0;
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priv = 0;
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kind = 0x00;
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} else {
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VMM_DEBUG(vmm, "args");
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return ret;
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}
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aper = vmm->func->aper(target);
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if (WARN_ON(aper < 0))
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return aper;
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kindm = vmm->mmu->func->kind(vmm->mmu, &kindn);
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if (kind >= kindn || kindm[kind] == 0xff) {
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VMM_DEBUG(vmm, "kind %02x", kind);
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return -EINVAL;
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}
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if (kindm[kind] != kind) {
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u64 tags = nvkm_memory_size(memory) >> 16;
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if (aper != 0 || !(page->type & NVKM_VMM_PAGE_COMP)) {
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VMM_DEBUG(vmm, "comp %d %02x", aper, page->type);
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return -EINVAL;
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}
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ret = nvkm_memory_tags_get(memory, device, tags,
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nvkm_ltc_tags_clear,
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&map->tags);
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if (ret) {
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VMM_DEBUG(vmm, "comp %d", ret);
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return ret;
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}
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if (map->tags->mn) {
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tags = map->tags->mn->offset + (map->offset >> 16);
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map->ctag |= ((1ULL << page->shift) >> 16) << 36;
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map->type |= tags << 36;
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map->next |= map->ctag;
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} else {
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kind = kindm[kind];
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}
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}
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map->type |= BIT(0);
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map->type |= (u64)aper << 1;
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map->type |= (u64) vol << 3;
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map->type |= (u64)priv << 5;
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map->type |= (u64) ro << 6;
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map->type |= (u64)kind << 56;
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return 0;
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}
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void
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gp100_vmm_flush(struct nvkm_vmm *vmm, int depth)
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{
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gf100_vmm_flush_(vmm, 5 /* CACHE_LEVEL_UP_TO_PDE3 */ - depth);
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}
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int
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gp100_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
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{
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const u64 base = BIT_ULL(10) /* VER2 */ | BIT_ULL(11); /* 64KiB */
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return gf100_vmm_join_(vmm, inst, base);
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}
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static const struct nvkm_vmm_func
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gp100_vmm = {
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.join = gp100_vmm_join,
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.part = gf100_vmm_part,
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.aper = gf100_vmm_aper,
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.valid = gp100_vmm_valid,
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.flush = gp100_vmm_flush,
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.page = {
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{ 47, &gp100_vmm_desc_16[4], NVKM_VMM_PAGE_Sxxx },
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{ 38, &gp100_vmm_desc_16[3], NVKM_VMM_PAGE_Sxxx },
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{ 29, &gp100_vmm_desc_16[2], NVKM_VMM_PAGE_Sxxx },
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{ 21, &gp100_vmm_desc_16[1], NVKM_VMM_PAGE_SVxC },
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{ 16, &gp100_vmm_desc_16[0], NVKM_VMM_PAGE_SVxC },
|
||
|
|
{ 12, &gp100_vmm_desc_12[0], NVKM_VMM_PAGE_SVHx },
|
||
|
|
{}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
int
|
||
|
|
gp100_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_(&gp100_vmm, mmu, 0, addr, size,
|
||
|
|
argv, argc, key, name, pvmm);
|
||
|
|
}
|