| /* |
| * Copyright 2023 Red Hat Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| #include "priv.h" |
| #include "ram.h" |
| |
| #include <subdev/gsp.h> |
| |
| static const struct nvkm_ram_func |
| r535_fb_ram = { |
| }; |
| |
| static int |
| r535_fb_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram) |
| { |
| struct nvkm_gsp *gsp = fb->subdev.device->gsp; |
| struct nvkm_ram *ram; |
| int ret; |
| |
| if (!(ram = *pram = kzalloc(sizeof(*ram), GFP_KERNEL))) |
| return -ENOMEM; |
| |
| ram->func = &r535_fb_ram; |
| ram->fb = fb; |
| ram->type = NVKM_RAM_TYPE_UNKNOWN; /*TODO: pull this from GSP. */ |
| ram->size = gsp->fb.size; |
| ram->stolen = false; |
| mutex_init(&ram->mutex); |
| |
| for (int i = 0; i < gsp->fb.region_nr; i++) { |
| ret = nvkm_mm_init(&ram->vram, NVKM_RAM_MM_NORMAL, |
| gsp->fb.region[i].addr >> NVKM_RAM_MM_SHIFT, |
| gsp->fb.region[i].size >> NVKM_RAM_MM_SHIFT, |
| 1); |
| if (ret) |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static void * |
| r535_fb_dtor(struct nvkm_fb *fb) |
| { |
| kfree(fb->func); |
| return fb; |
| } |
| |
| int |
| r535_fb_new(const struct nvkm_fb_func *hw, |
| struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb) |
| { |
| struct nvkm_fb_func *rm; |
| int ret; |
| |
| if (!(rm = kzalloc(sizeof(*rm), GFP_KERNEL))) |
| return -ENOMEM; |
| |
| rm->dtor = r535_fb_dtor; |
| rm->sysmem.flush_page_init = hw->sysmem.flush_page_init; |
| rm->vidmem.size = hw->vidmem.size; |
| rm->ram_new = r535_fb_ram_new; |
| |
| ret = nvkm_fb_new_(rm, device, type, inst, pfb); |
| if (ret) |
| kfree(rm); |
| |
| return ret; |
| } |