| Ben Skeggs | d36a99d | 2015-08-20 14:54:14 +1000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 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 | * Authors: Ben Skeggs <bskeggs@redhat.com> |
| 23 | */ |
| 24 | #include "ram.h" |
| 25 | |
| 26 | int |
| 27 | nvkm_ram_init(struct nvkm_ram *ram) |
| 28 | { |
| 29 | if (ram->func->init) |
| 30 | return ram->func->init(ram); |
| 31 | return 0; |
| 32 | } |
| 33 | |
| 34 | void |
| 35 | nvkm_ram_del(struct nvkm_ram **pram) |
| 36 | { |
| 37 | struct nvkm_ram *ram = *pram; |
| 38 | if (ram && !WARN_ON(!ram->func)) { |
| 39 | if (ram->func->dtor) |
| 40 | *pram = ram->func->dtor(ram); |
| 41 | nvkm_mm_fini(&ram->tags); |
| 42 | nvkm_mm_fini(&ram->vram); |
| 43 | kfree(*pram); |
| 44 | *pram = NULL; |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | int |
| 49 | nvkm_ram_ctor(const struct nvkm_ram_func *func, struct nvkm_fb *fb, |
| 50 | enum nvkm_ram_type type, u64 size, u32 tags, |
| 51 | struct nvkm_ram *ram) |
| 52 | { |
| 53 | static const char *name[] = { |
| 54 | [NVKM_RAM_TYPE_UNKNOWN] = "of unknown memory type", |
| 55 | [NVKM_RAM_TYPE_STOLEN ] = "stolen system memory", |
| 56 | [NVKM_RAM_TYPE_SGRAM ] = "SGRAM", |
| 57 | [NVKM_RAM_TYPE_SDRAM ] = "SDRAM", |
| 58 | [NVKM_RAM_TYPE_DDR1 ] = "DDR1", |
| 59 | [NVKM_RAM_TYPE_DDR2 ] = "DDR2", |
| 60 | [NVKM_RAM_TYPE_DDR3 ] = "DDR3", |
| 61 | [NVKM_RAM_TYPE_GDDR2 ] = "GDDR2", |
| 62 | [NVKM_RAM_TYPE_GDDR3 ] = "GDDR3", |
| 63 | [NVKM_RAM_TYPE_GDDR4 ] = "GDDR4", |
| 64 | [NVKM_RAM_TYPE_GDDR5 ] = "GDDR5", |
| 65 | }; |
| 66 | struct nvkm_subdev *subdev = &fb->subdev; |
| 67 | int ret; |
| 68 | |
| 69 | nvkm_info(subdev, "%d MiB %s\n", (int)(size >> 20), name[type]); |
| 70 | ram->func = func; |
| 71 | ram->fb = fb; |
| 72 | ram->type = type; |
| 73 | ram->size = size; |
| 74 | |
| 75 | if (!nvkm_mm_initialised(&ram->vram)) { |
| 76 | ret = nvkm_mm_init(&ram->vram, 0, size >> NVKM_RAM_MM_SHIFT, 1); |
| 77 | if (ret) |
| 78 | return ret; |
| 79 | } |
| 80 | |
| 81 | if (!nvkm_mm_initialised(&ram->tags)) { |
| 82 | ret = nvkm_mm_init(&ram->tags, 0, tags ? ++tags : 0, 1); |
| 83 | if (ret) |
| 84 | return ret; |
| 85 | |
| 86 | nvkm_debug(subdev, "%d compression tags\n", tags); |
| 87 | } |
| 88 | |
| 89 | return 0; |
| 90 | } |
| 91 | |
| 92 | int |
| 93 | nvkm_ram_new_(const struct nvkm_ram_func *func, struct nvkm_fb *fb, |
| 94 | enum nvkm_ram_type type, u64 size, u32 tags, |
| 95 | struct nvkm_ram **pram) |
| 96 | { |
| 97 | if (!(*pram = kzalloc(sizeof(**pram), GFP_KERNEL))) |
| 98 | return -ENOMEM; |
| 99 | return nvkm_ram_ctor(func, fb, type, size, tags, *pram); |
| 100 | } |