subdev/mmu/memnv50.c

0001 /*
0002  * Copyright 2017 Red Hat Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  */
0022 #include "mem.h"
0023
0024 #include <core/memory.h>
0025 #include <subdev/bar.h>
0026 #include <subdev/fb.h>
0027
0028 #include <nvif/class.h>
0029 #include <nvif/if500b.h>
0030 #include <nvif/if500d.h>
0031 #include <nvif/unpack.h>
0032
0033 int
0034 nv50_mem_map(struct nvkm_mmu *mmu, struct nvkm_memory *memory, void *argv,
0035          u32 argc, u64 *paddr, u64 *psize, struct nvkm_vma **pvma)
0036 {
0037     struct nv50_vmm_map_v0 uvmm = {};
0038     union {
0039         struct nv50_mem_map_vn vn;
0040         struct nv50_mem_map_v0 v0;
0041     } *args = argv;
0042     struct nvkm_device *device = mmu->subdev.device;
0043     struct nvkm_vmm *bar = nvkm_bar_bar1_vmm(device);
0044     u64 size = nvkm_memory_size(memory);
0045     int ret = -ENOSYS;
0046
0047     if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
0048         uvmm.ro   = args->v0.ro;
0049         uvmm.kind = args->v0.kind;
0050         uvmm.comp = args->v0.comp;
0051     } else
0052     if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
0053     } else
0054         return ret;
0055
0056     ret = nvkm_vmm_get(bar, 12, size, pvma);
0057     if (ret)
0058         return ret;
0059
0060     *paddr = device->func->resource_addr(device, 1) + (*pvma)->addr;
0061     *psize = (*pvma)->size;
0062     return nvkm_memory_map(memory, 0, bar, *pvma, &uvmm, sizeof(uvmm));
0063 }
0064
0065 int
0066 nv50_mem_new(struct nvkm_mmu *mmu, int type, u8 page, u64 size,
0067          void *argv, u32 argc, struct nvkm_memory **pmemory)
0068 {
0069     union {
0070         struct nv50_mem_vn vn;
0071         struct nv50_mem_v0 v0;
0072     } *args = argv;
0073     int ret = -ENOSYS;
0074     bool contig;
0075
0076     if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
0077         type   = args->v0.bankswz ? 0x02 : 0x01;
0078         contig = args->v0.contig;
0079     } else
0080     if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
0081         type   = 0x01;
0082         contig = false;
0083     } else
0084         return -ENOSYS;
0085
0086     return nvkm_ram_get(mmu->subdev.device, NVKM_RAM_MM_NORMAL, type,
0087                 page, size, contig, false, pmemory);
0088 }