subdev/mmu/vmmgv100.c

0001 /*
0002  * Copyright 2018 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 "vmm.h"
0023
0024 #include <subdev/fb.h>
0025 #include <subdev/ltc.h>
0026
0027 #include <nvif/ifc00d.h>
0028 #include <nvif/unpack.h>
0029
0030 int
0031 gv100_vmm_join(struct nvkm_vmm *vmm, struct nvkm_memory *inst)
0032 {
0033     u64 data[2], mask;
0034     int ret = gp100_vmm_join(vmm, inst), i;
0035     if (ret)
0036         return ret;
0037
0038     nvkm_kmap(inst);
0039     data[0] = nvkm_ro32(inst, 0x200);
0040     data[1] = nvkm_ro32(inst, 0x204);
0041     mask = BIT_ULL(0);
0042
0043     nvkm_wo32(inst, 0x21c, 0x00000000);
0044
0045     for (i = 0; i < 64; i++) {
0046         if (mask & BIT_ULL(i)) {
0047             nvkm_wo32(inst, 0x2a4 + (i * 0x10), data[1]);
0048             nvkm_wo32(inst, 0x2a0 + (i * 0x10), data[0]);
0049         } else {
0050             nvkm_wo32(inst, 0x2a4 + (i * 0x10), 0x00000001);
0051             nvkm_wo32(inst, 0x2a0 + (i * 0x10), 0x00000001);
0052         }
0053         nvkm_wo32(inst, 0x2a8 + (i * 0x10), 0x00000000);
0054     }
0055
0056     nvkm_wo32(inst, 0x298, lower_32_bits(mask));
0057     nvkm_wo32(inst, 0x29c, upper_32_bits(mask));
0058     nvkm_done(inst);
0059     return 0;
0060 }
0061
0062 static const struct nvkm_vmm_func
0063 gv100_vmm = {
0064     .join = gv100_vmm_join,
0065     .part = gf100_vmm_part,
0066     .aper = gf100_vmm_aper,
0067     .valid = gp100_vmm_valid,
0068     .flush = gp100_vmm_flush,
0069     .mthd = gp100_vmm_mthd,
0070     .invalidate_pdb = gp100_vmm_invalidate_pdb,
0071     .page = {
0072         { 47, &gp100_vmm_desc_16[4], NVKM_VMM_PAGE_Sxxx },
0073         { 38, &gp100_vmm_desc_16[3], NVKM_VMM_PAGE_Sxxx },
0074         { 29, &gp100_vmm_desc_16[2], NVKM_VMM_PAGE_Sxxx },
0075         { 21, &gp100_vmm_desc_16[1], NVKM_VMM_PAGE_SVxC },
0076         { 16, &gp100_vmm_desc_16[0], NVKM_VMM_PAGE_SVxC },
0077         { 12, &gp100_vmm_desc_12[0], NVKM_VMM_PAGE_SVHx },
0078         {}
0079     }
0080 };
0081
0082 int
0083 gv100_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
0084           void *argv, u32 argc, struct lock_class_key *key,
0085           const char *name, struct nvkm_vmm **pvmm)
0086 {
0087     return gp100_vmm_new_(&gv100_vmm, mmu, managed, addr, size,
0088                   argv, argc, key, name, pvmm);
0089 }