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      1 /*	$NetBSD: nouveau_nvkm_subdev_mmu_gm200.c,v 1.2 2021/12/18 23:45:40 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_gm200.c,v 1.2 2021/12/18 23:45:40 riastradh Exp $");
     26 
     27 #include "mem.h"
     28 #include "vmm.h"
     29 
     30 #include <subdev/fb.h>
     31 
     32 #include <nvif/class.h>
     33 
     34 const u8 *
     35 gm200_mmu_kind(struct nvkm_mmu *mmu, int *count, u8 *invalid)
     36 {
     37 	static const u8
     38 	kind[256] = {
     39 		0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0xff, 0x01, /* 0x00 */
     40 		0x01, 0x01, 0x01, 0xff, 0xff, 0xff, 0xff, 0xff,
     41 		0xff, 0x11, 0xff, 0xff, 0xff, 0xff, 0xff, 0x11, /* 0x10 */
     42 		0x11, 0x11, 0x11, 0xff, 0xff, 0xff, 0xff, 0xff,
     43 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x26, 0x27, /* 0x20 */
     44 		0x28, 0x29, 0x2a, 0x2b, 0xff, 0xff, 0xff, 0xff,
     45 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x30 */
     46 		0xff, 0xff, 0x26, 0x27, 0x28, 0x29, 0x26, 0x27,
     47 		0x28, 0x29, 0xff, 0xff, 0xff, 0xff, 0x46, 0xff, /* 0x40 */
     48 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
     49 		0xff, 0x46, 0x46, 0x46, 0x46, 0xff, 0xff, 0xff, /* 0x50 */
     50 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
     51 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x60 */
     52 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
     53 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x70 */
     54 		0xff, 0xff, 0xff, 0x7b, 0xff, 0xff, 0xff, 0xff,
     55 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7b, 0x7b, /* 0x80 */
     56 		0x7b, 0x7b, 0xff, 0x8b, 0x8c, 0x8d, 0x8e, 0xff,
     57 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0x90 */
     58 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
     59 		0xff, 0xff, 0xff, 0x8b, 0x8c, 0x8d, 0x8e, 0xa7, /* 0xa0 */
     60 		0xa8, 0xa9, 0xaa, 0xff, 0xff, 0xff, 0xff, 0xff,
     61 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0 */
     62 		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xa7,
     63 		0xa8, 0xa9, 0xaa, 0xc3, 0xff, 0xff, 0xff, 0xff, /* 0xc0 */
     64 		0xff, 0xff, 0xff, 0xff, 0xfe, 0xfe, 0xc3, 0xc3,
     65 		0xc3, 0xc3, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xd0 */
     66 		0xfe, 0xff, 0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfe,
     67 		0xfe, 0xff, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xff, /* 0xe0 */
     68 		0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfe, 0xfe, 0xff,
     69 		0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, /* 0xf0 */
     70 		0xfe, 0xfe, 0xfe, 0xfe, 0xff, 0xfd, 0xfe, 0xff
     71 	};
     72 	*count = ARRAY_SIZE(kind);
     73 	*invalid = 0xff;
     74 	return kind;
     75 }
     76 
     77 static const struct nvkm_mmu_func
     78 gm200_mmu = {
     79 	.dma_bits = 40,
     80 	.mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
     81 	.mem = {{ -1,  0, NVIF_CLASS_MEM_GF100}, gf100_mem_new, gf100_mem_map },
     82 	.vmm = {{ -1,  0, NVIF_CLASS_VMM_GM200}, gm200_vmm_new },
     83 	.kind = gm200_mmu_kind,
     84 	.kind_sys = true,
     85 };
     86 
     87 static const struct nvkm_mmu_func
     88 gm200_mmu_fixed = {
     89 	.dma_bits = 40,
     90 	.mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
     91 	.mem = {{ -1,  0, NVIF_CLASS_MEM_GF100}, gf100_mem_new, gf100_mem_map },
     92 	.vmm = {{ -1, -1, NVIF_CLASS_VMM_GM200}, gm200_vmm_new_fixed },
     93 	.kind = gm200_mmu_kind,
     94 	.kind_sys = true,
     95 };
     96 
     97 int
     98 gm200_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu)
     99 {
    100 	if (device->fb->page)
    101 		return nvkm_mmu_new_(&gm200_mmu_fixed, device, index, pmmu);
    102 	return nvkm_mmu_new_(&gm200_mmu, device, index, pmmu);
    103 }
    104