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 } 101