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      1 /*	$NetBSD: nouveau_nvkm_subdev_mmu_vmmgk20a.c,v 1.2 2021/12/18 23:45:41 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2017 Red Hat Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  */
     24 #include <sys/cdefs.h>
     25 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_mmu_vmmgk20a.c,v 1.2 2021/12/18 23:45:41 riastradh Exp $");
     26 
     27 #include "vmm.h"
     28 
     29 #include <core/memory.h>
     30 
     31 int
     32 gk20a_vmm_aper(enum nvkm_memory_target target)
     33 {
     34 	switch (target) {
     35 	case NVKM_MEM_TARGET_NCOH: return 0;
     36 	default:
     37 		return -EINVAL;
     38 	}
     39 }
     40 
     41 static const struct nvkm_vmm_func
     42 gk20a_vmm_17 = {
     43 	.join = gf100_vmm_join,
     44 	.part = gf100_vmm_part,
     45 	.aper = gf100_vmm_aper,
     46 	.valid = gf100_vmm_valid,
     47 	.flush = gf100_vmm_flush,
     48 	.invalidate_pdb = gf100_vmm_invalidate_pdb,
     49 	.page = {
     50 		{ 17, &gk104_vmm_desc_17_17[0], NVKM_VMM_PAGE_xxHC },
     51 		{ 12, &gk104_vmm_desc_17_12[0], NVKM_VMM_PAGE_xxHx },
     52 		{}
     53 	}
     54 };
     55 
     56 static const struct nvkm_vmm_func
     57 gk20a_vmm_16 = {
     58 	.join = gf100_vmm_join,
     59 	.part = gf100_vmm_part,
     60 	.aper = gf100_vmm_aper,
     61 	.valid = gf100_vmm_valid,
     62 	.flush = gf100_vmm_flush,
     63 	.invalidate_pdb = gf100_vmm_invalidate_pdb,
     64 	.page = {
     65 		{ 16, &gk104_vmm_desc_16_16[0], NVKM_VMM_PAGE_xxHC },
     66 		{ 12, &gk104_vmm_desc_16_12[0], NVKM_VMM_PAGE_xxHx },
     67 		{}
     68 	}
     69 };
     70 
     71 int
     72 gk20a_vmm_new(struct nvkm_mmu *mmu, bool managed, u64 addr, u64 size,
     73 	      void *argv, u32 argc, struct lock_class_key *key,
     74 	      const char *name, struct nvkm_vmm **pvmm)
     75 {
     76 	return gf100_vmm_new_(&gk20a_vmm_16, &gk20a_vmm_17, mmu, managed, addr,
     77 			      size, argv, argc, key, name, pvmm);
     78 }
     79