Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Ben Skeggs | 485 | 100.00% | 2 | 100.00% |
Total | 485 | 2 |
/* * 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/timer.h> static void nv41_vmm_pgt_pte(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes, struct nvkm_vmm_map *map, u64 addr) { u32 data = (addr >> 7) | 0x00000001; /* VALID. */ while (ptes--) { VMM_WO032(pt, vmm, ptei++ * 4, data); data += 0x00000020; } } static void nv41_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, nv41_vmm_pgt_pte); } static void nv41_vmm_pgt_dma(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes, struct nvkm_vmm_map *map) { #if PAGE_SHIFT == 12 nvkm_kmap(pt->memory); while (ptes--) { const u32 data = (*map->dma++ >> 7) | 0x00000001; VMM_WO032(pt, vmm, ptei++ * 4, data); } nvkm_done(pt->memory); #else VMM_MAP_ITER_DMA(vmm, pt, ptei, ptes, map, nv41_vmm_pgt_pte); #endif } static void nv41_vmm_pgt_unmap(struct nvkm_vmm *vmm, struct nvkm_mmu_pt *pt, u32 ptei, u32 ptes) { VMM_FO032(pt, vmm, ptei * 4, 0, ptes); } static const struct nvkm_vmm_desc_func nv41_vmm_desc_pgt = { .unmap = nv41_vmm_pgt_unmap, .dma = nv41_vmm_pgt_dma, .sgl = nv41_vmm_pgt_sgl, }; static const struct nvkm_vmm_desc nv41_vmm_desc_12[] = { { PGT, 17, 4, 0x1000, &nv41_vmm_desc_pgt }, {} }; static void nv41_vmm_flush(struct nvkm_vmm *vmm, int level) { struct nvkm_subdev *subdev = &vmm->mmu->subdev; struct nvkm_device *device = subdev->device; mutex_lock(&subdev->mutex); nvkm_wr32(device, 0x100810, 0x00000022); nvkm_msec(device, 2000, if (nvkm_rd32(device, 0x100810) & 0x00000020) break; ); nvkm_wr32(device, 0x100810, 0x00000000); mutex_unlock(&subdev->mutex); } static const struct nvkm_vmm_func nv41_vmm = { .valid = nv04_vmm_valid, .flush = nv41_vmm_flush, .page = { { 12, &nv41_vmm_desc_12[0], NVKM_VMM_PAGE_HOST }, {} } }; int nv41_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_(&nv41_vmm, mmu, 0, addr, size, argv, argc, key, name, pvmm); }
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