386 lines
9.3 KiB
C
386 lines
9.3 KiB
C
/*
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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/timer.h>
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#include <engine/gr.h>
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#include <nvif/if500d.h>
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#include <nvif/unpack.h>
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static inline void
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nv50_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 next = addr | map->type, data;
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u32 pten;
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int log2blk;
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map->type += ptes * map->ctag;
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while (ptes) {
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for (log2blk = 7; log2blk >= 0; log2blk--) {
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pten = 1 << log2blk;
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if (ptes >= pten && IS_ALIGNED(ptei, pten))
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break;
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}
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data = next | (log2blk << 7);
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next += pten * map->next;
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ptes -= pten;
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while (pten--)
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VMM_WO064(pt, vmm, ptei++ * 8, data);
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}
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}
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static void
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nv50_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, nv50_vmm_pgt_pte);
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}
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static void
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nv50_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++ | 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, nv50_vmm_pgt_pte);
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}
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static void
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nv50_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, nv50_vmm_pgt_pte);
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}
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static void
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nv50_vmm_pgt_unmap(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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VMM_FO064(pt, vmm, ptei * 8, 0ULL, ptes);
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}
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static const struct nvkm_vmm_desc_func
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nv50_vmm_pgt = {
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.unmap = nv50_vmm_pgt_unmap,
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.mem = nv50_vmm_pgt_mem,
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.dma = nv50_vmm_pgt_dma,
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.sgl = nv50_vmm_pgt_sgl,
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};
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static bool
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nv50_vmm_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgt, u64 *pdata)
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{
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struct nvkm_mmu_pt *pt;
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u64 data = 0xdeadcafe00000000ULL;
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if (pgt && (pt = pgt->pt[0])) {
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switch (pgt->page) {
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case 16: data = 0x00000001; break;
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case 12: data = 0x00000003;
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switch (nvkm_memory_size(pt->memory)) {
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case 0x100000: data |= 0x00000000; break;
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case 0x040000: data |= 0x00000020; break;
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case 0x020000: data |= 0x00000040; break;
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case 0x010000: data |= 0x00000060; 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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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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switch (nvkm_memory_target(pt->memory)) {
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case NVKM_MEM_TARGET_VRAM: data |= 0x00000000; break;
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case NVKM_MEM_TARGET_HOST: data |= 0x00000008; break;
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case NVKM_MEM_TARGET_NCOH: data |= 0x0000000c; 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;
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}
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*pdata = data;
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return true;
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}
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static void
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nv50_vmm_pgd_pde(struct nvkm_vmm *vmm, struct nvkm_vmm_pt *pgd, u32 pdei)
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{
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struct nvkm_vmm_join *join;
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u32 pdeo = vmm->mmu->func->vmm.pd_offset + (pdei * 8);
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u64 data;
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if (!nv50_vmm_pde(vmm, pgd->pde[pdei], &data))
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return;
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list_for_each_entry(join, &vmm->join, head) {
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nvkm_kmap(join->inst);
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nvkm_wo64(join->inst, pdeo, data);
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nvkm_done(join->inst);
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}
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}
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static const struct nvkm_vmm_desc_func
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nv50_vmm_pgd = {
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.pde = nv50_vmm_pgd_pde,
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};
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static const struct nvkm_vmm_desc
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nv50_vmm_desc_12[] = {
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{ PGT, 17, 8, 0x1000, &nv50_vmm_pgt },
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{ PGD, 11, 0, 0x0000, &nv50_vmm_pgd },
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{}
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};
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static const struct nvkm_vmm_desc
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nv50_vmm_desc_16[] = {
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{ PGT, 13, 8, 0x1000, &nv50_vmm_pgt },
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{ PGD, 11, 0, 0x0000, &nv50_vmm_pgd },
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{}
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};
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static void
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nv50_vmm_flush(struct nvkm_vmm *vmm, int level)
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{
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struct nvkm_subdev *subdev = &vmm->mmu->subdev;
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struct nvkm_device *device = subdev->device;
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int i, id;
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mutex_lock(&subdev->mutex);
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for (i = 0; i < NVKM_SUBDEV_NR; i++) {
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if (!atomic_read(&vmm->engref[i]))
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continue;
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/* unfortunate hw bug workaround... */
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if (i == NVKM_ENGINE_GR && device->gr) {
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int ret = nvkm_gr_tlb_flush(device->gr);
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if (ret != -ENODEV)
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continue;
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}
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switch (i) {
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case NVKM_ENGINE_GR : id = 0x00; break;
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case NVKM_ENGINE_VP :
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case NVKM_ENGINE_MSPDEC: id = 0x01; break;
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case NVKM_SUBDEV_BAR : id = 0x06; break;
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case NVKM_ENGINE_MSPPP :
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case NVKM_ENGINE_MPEG : id = 0x08; break;
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case NVKM_ENGINE_BSP :
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case NVKM_ENGINE_MSVLD : id = 0x09; break;
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case NVKM_ENGINE_CIPHER:
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case NVKM_ENGINE_SEC : id = 0x0a; break;
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case NVKM_ENGINE_CE0 : id = 0x0d; break;
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default:
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continue;
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}
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nvkm_wr32(device, 0x100c80, (id << 16) | 1);
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if (nvkm_msec(device, 2000,
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if (!(nvkm_rd32(device, 0x100c80) & 0x00000001))
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break;
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) < 0)
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nvkm_error(subdev, "%s mmu invalidate timeout\n",
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nvkm_subdev_name[i]);
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}
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mutex_unlock(&subdev->mutex);
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}
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static int
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nv50_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 struct nvkm_vmm_page *page = map->page;
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union {
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struct nv50_vmm_map_vn vn;
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struct nv50_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_ram *ram = device->fb->ram;
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struct nvkm_memory *memory = map->memory;
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u8 aper, kind, comp, priv, ro;
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int kindn, ret = -ENOSYS;
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const u8 *kindm;
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map->type = map->ctag = 0;
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map->next = 1 << page->shift;
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if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
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ro = !!args->v0.ro;
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priv = !!args->v0.priv;
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kind = args->v0.kind & 0x7f;
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comp = args->v0.comp & 0x03;
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} else
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if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
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ro = 0;
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priv = 0;
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kind = 0x00;
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comp = 0;
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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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switch (nvkm_memory_target(memory)) {
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case NVKM_MEM_TARGET_VRAM:
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if (ram->stolen) {
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map->type |= ram->stolen;
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aper = 3;
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} else {
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aper = 0;
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}
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break;
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case NVKM_MEM_TARGET_HOST:
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aper = 2;
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break;
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case NVKM_MEM_TARGET_NCOH:
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aper = 3;
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break;
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default:
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WARN_ON(1);
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return -EINVAL;
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}
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kindm = vmm->mmu->func->kind(vmm->mmu, &kindn);
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if (kind >= kindn || kindm[kind] == 0x7f) {
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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 (map->mem && map->mem->type != kindm[kind]) {
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VMM_DEBUG(vmm, "kind %02x bankswz: %d %d", kind,
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kindm[kind], map->mem->type);
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return -EINVAL;
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}
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if (comp) {
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u32 tags = (nvkm_memory_size(memory) >> 16) * comp;
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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, NULL,
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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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u32 tags = map->tags->mn->offset + (map->offset >> 16);
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map->ctag |= (u64)comp << 49;
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map->type |= (u64)comp << 47;
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map->type |= (u64)tags << 49;
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map->next |= map->ctag;
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}
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}
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map->type |= BIT(0); /* Valid. */
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map->type |= (u64)ro << 3;
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map->type |= (u64)aper << 4;
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map->type |= (u64)priv << 6;
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map->type |= (u64)kind << 40;
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return 0;
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}
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static void
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nv50_vmm_part(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
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{
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struct nvkm_vmm_join *join;
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list_for_each_entry(join, &vmm->join, head) {
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if (join->inst == inst) {
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list_del(&join->head);
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kfree(join);
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break;
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}
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}
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}
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static int
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nv50_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
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{
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const u32 pd_offset = vmm->mmu->func->vmm.pd_offset;
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struct nvkm_vmm_join *join;
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int ret = 0;
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u64 data;
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u32 pdei;
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if (!(join = kmalloc(sizeof(*join), GFP_KERNEL)))
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return -ENOMEM;
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join->inst = inst;
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list_add_tail(&join->head, &vmm->join);
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nvkm_kmap(join->inst);
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for (pdei = vmm->start >> 29; pdei <= (vmm->limit - 1) >> 29; pdei++) {
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if (!nv50_vmm_pde(vmm, vmm->pd->pde[pdei], &data)) {
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ret = -EINVAL;
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break;
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}
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nvkm_wo64(join->inst, pd_offset + (pdei * 8), data);
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}
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nvkm_done(join->inst);
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return ret;
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}
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static const struct nvkm_vmm_func
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nv50_vmm = {
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.join = nv50_vmm_join,
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.part = nv50_vmm_part,
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.valid = nv50_vmm_valid,
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.flush = nv50_vmm_flush,
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.page_block = 1 << 29,
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.page = {
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{ 16, &nv50_vmm_desc_16[0], NVKM_VMM_PAGE_xVxC },
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{ 12, &nv50_vmm_desc_12[0], NVKM_VMM_PAGE_xVHx },
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{}
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}
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};
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int
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nv50_vmm_new(struct nvkm_mmu *mmu, u64 addr, u64 size, void *argv, u32 argc,
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struct lock_class_key *key, const char *name,
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struct nvkm_vmm **pvmm)
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{
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return nv04_vmm_new_(&nv50_vmm, mmu, 0, addr, size,
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argv, argc, key, name, pvmm);
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}
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