1 /* 2 * Copyright 2023 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 #include "priv.h" 23 #include "ram.h" 24 25 #include <subdev/gsp.h> 26 27 static const struct nvkm_ram_func 28 r535_fb_ram = { 29 }; 30 31 static int 32 r535_fb_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram) 33 { 34 struct nvkm_gsp *gsp = fb->subdev.device->gsp; 35 struct nvkm_ram *ram; 36 int ret; 37 38 if (!(ram = *pram = kzalloc(sizeof(*ram), GFP_KERNEL))) 39 return -ENOMEM; 40 41 ram->func = &r535_fb_ram; 42 ram->fb = fb; 43 ram->type = NVKM_RAM_TYPE_UNKNOWN; /*TODO: pull this from GSP. */ 44 ram->size = gsp->fb.size; 45 ram->stolen = false; 46 mutex_init(&ram->mutex); 47 48 for (int i = 0; i < gsp->fb.region_nr; i++) { 49 ret = nvkm_mm_init(&ram->vram, NVKM_RAM_MM_NORMAL, 50 gsp->fb.region[i].addr >> NVKM_RAM_MM_SHIFT, 51 gsp->fb.region[i].size >> NVKM_RAM_MM_SHIFT, 52 1); 53 if (ret) 54 return ret; 55 } 56 57 return 0; 58 } 59 60 static void * 61 r535_fb_dtor(struct nvkm_fb *fb) 62 { 63 kfree(fb->func); 64 return fb; 65 } 66 67 int 68 r535_fb_new(const struct nvkm_fb_func *hw, 69 struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb) 70 { 71 struct nvkm_fb_func *rm; 72 int ret; 73 74 if (!(rm = kzalloc(sizeof(*rm), GFP_KERNEL))) 75 return -ENOMEM; 76 77 rm->dtor = r535_fb_dtor; 78 rm->sysmem.flush_page_init = hw->sysmem.flush_page_init; 79 rm->vidmem.size = hw->vidmem.size; 80 rm->ram_new = r535_fb_ram_new; 81 82 ret = nvkm_fb_new_(rm, device, type, inst, pfb); 83 if (ret) 84 kfree(rm); 85 86 return ret; 87 } 88