usergv100.c (3584B)
1/* 2 * Copyright 2018 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 */ 22#define gv100_dmaobj(p) container_of((p), struct gv100_dmaobj, base) 23#include "user.h" 24 25#include <core/client.h> 26#include <core/gpuobj.h> 27#include <subdev/fb.h> 28 29#include <nvif/cl0002.h> 30#include <nvif/unpack.h> 31 32struct gv100_dmaobj { 33 struct nvkm_dmaobj base; 34 u32 flags0; 35}; 36 37static int 38gv100_dmaobj_bind(struct nvkm_dmaobj *base, struct nvkm_gpuobj *parent, 39 int align, struct nvkm_gpuobj **pgpuobj) 40{ 41 struct gv100_dmaobj *dmaobj = gv100_dmaobj(base); 42 struct nvkm_device *device = dmaobj->base.dma->engine.subdev.device; 43 u64 start = dmaobj->base.start >> 8; 44 u64 limit = dmaobj->base.limit >> 8; 45 int ret; 46 47 ret = nvkm_gpuobj_new(device, 24, align, false, parent, pgpuobj); 48 if (ret == 0) { 49 nvkm_kmap(*pgpuobj); 50 nvkm_wo32(*pgpuobj, 0x00, dmaobj->flags0); 51 nvkm_wo32(*pgpuobj, 0x04, lower_32_bits(start)); 52 nvkm_wo32(*pgpuobj, 0x08, upper_32_bits(start)); 53 nvkm_wo32(*pgpuobj, 0x0c, lower_32_bits(limit)); 54 nvkm_wo32(*pgpuobj, 0x10, upper_32_bits(limit)); 55 nvkm_done(*pgpuobj); 56 } 57 58 return ret; 59} 60 61static const struct nvkm_dmaobj_func 62gv100_dmaobj_func = { 63 .bind = gv100_dmaobj_bind, 64}; 65 66int 67gv100_dmaobj_new(struct nvkm_dma *dma, const struct nvkm_oclass *oclass, 68 void *data, u32 size, struct nvkm_dmaobj **pdmaobj) 69{ 70 union { 71 struct gf119_dma_v0 v0; 72 } *args; 73 struct nvkm_object *parent = oclass->parent; 74 struct gv100_dmaobj *dmaobj; 75 u32 kind, page; 76 int ret; 77 78 if (!(dmaobj = kzalloc(sizeof(*dmaobj), GFP_KERNEL))) 79 return -ENOMEM; 80 *pdmaobj = &dmaobj->base; 81 82 ret = nvkm_dmaobj_ctor(&gv100_dmaobj_func, dma, oclass, 83 &data, &size, &dmaobj->base); 84 if (ret) 85 return ret; 86 87 ret = -ENOSYS; 88 args = data; 89 90 nvif_ioctl(parent, "create gv100 dma size %d\n", size); 91 if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { 92 nvif_ioctl(parent, 93 "create gv100 dma vers %d page %d kind %02x\n", 94 args->v0.version, args->v0.page, args->v0.kind); 95 kind = args->v0.kind != 0; 96 page = args->v0.page != 0; 97 } else 98 if (size == 0) { 99 kind = 0; 100 page = GF119_DMA_V0_PAGE_SP; 101 } else 102 return ret; 103 104 if (kind) 105 dmaobj->flags0 |= 0x00100000; 106 if (page) 107 dmaobj->flags0 |= 0x00000040; 108 dmaobj->flags0 |= 0x00000004; /* rw */ 109 110 switch (dmaobj->base.target) { 111 case NV_MEM_TARGET_VRAM : dmaobj->flags0 |= 0x00000001; break; 112 case NV_MEM_TARGET_PCI : dmaobj->flags0 |= 0x00000002; break; 113 case NV_MEM_TARGET_PCI_NOSNOOP: dmaobj->flags0 |= 0x00000003; break; 114 default: 115 return -EINVAL; 116 } 117 118 return 0; 119}