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      1 /*	$NetBSD: nouveau_nvkm_subdev_mmu_memnv50.c,v 1.3 2021/12/19 10:51:58 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_memnv50.c,v 1.3 2021/12/19 10:51:58 riastradh Exp $");
     26 
     27 #include "mem.h"
     28 
     29 #include <core/memory.h>
     30 #include <subdev/bar.h>
     31 #include <subdev/fb.h>
     32 
     33 #include <nvif/class.h>
     34 #include <nvif/if500b.h>
     35 #include <nvif/if500d.h>
     36 #include <nvif/unpack.h>
     37 
     38 int
     39 #ifdef __NetBSD__
     40 nv50_mem_map(struct nvkm_mmu *mmu, struct nvkm_memory *memory, void *argv,
     41 	     u32 argc, bus_space_tag_t *ptag, u64 *paddr, u64 *psize, struct nvkm_vma **pvma)
     42 #else
     43 nv50_mem_map(struct nvkm_mmu *mmu, struct nvkm_memory *memory, void *argv,
     44 	     u32 argc, u64 *paddr, u64 *psize, struct nvkm_vma **pvma)
     45 #endif
     46 {
     47 	struct nv50_vmm_map_v0 uvmm = {};
     48 	union {
     49 		struct nv50_mem_map_vn vn;
     50 		struct nv50_mem_map_v0 v0;
     51 	} *args = argv;
     52 	struct nvkm_device *device = mmu->subdev.device;
     53 	struct nvkm_vmm *bar = nvkm_bar_bar1_vmm(device);
     54 	u64 size = nvkm_memory_size(memory);
     55 	int ret = -ENOSYS;
     56 
     57 	if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
     58 		uvmm.ro   = args->v0.ro;
     59 		uvmm.kind = args->v0.kind;
     60 		uvmm.comp = args->v0.comp;
     61 	} else
     62 	if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
     63 	} else
     64 		return ret;
     65 
     66 	ret = nvkm_vmm_get(bar, 12, size, pvma);
     67 	if (ret)
     68 		return ret;
     69 
     70 #ifdef __NetBSD__
     71 	*ptag = device->func->resource_tag(device, 1);
     72 #endif
     73 	*paddr = device->func->resource_addr(device, 1) + (*pvma)->addr;
     74 	*psize = (*pvma)->size;
     75 	return nvkm_memory_map(memory, 0, bar, *pvma, &uvmm, sizeof(uvmm));
     76 }
     77 
     78 int
     79 nv50_mem_new(struct nvkm_mmu *mmu, int type, u8 page, u64 size,
     80 	     void *argv, u32 argc, struct nvkm_memory **pmemory)
     81 {
     82 	union {
     83 		struct nv50_mem_vn vn;
     84 		struct nv50_mem_v0 v0;
     85 	} *args = argv;
     86 	int ret = -ENOSYS;
     87 	bool contig;
     88 
     89 	if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
     90 		type   = args->v0.bankswz ? 0x02 : 0x01;
     91 		contig = args->v0.contig;
     92 	} else
     93 	if (!(ret = nvif_unvers(ret, &argv, &argc, args->vn))) {
     94 		type   = 0x01;
     95 		contig = false;
     96 	} else
     97 		return -ENOSYS;
     98 
     99 	return nvkm_ram_get(mmu->subdev.device, NVKM_RAM_MM_NORMAL, type,
    100 			    page, size, contig, false, pmemory);
    101 }
    102