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1/*2 * Copyright 2023 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 */22#include "priv.h"23#include "ram.h"24 25#include <subdev/gsp.h>26 27static const struct nvkm_ram_func28r535_fb_ram = {29};30 31static int32r535_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 60static void *61r535_fb_dtor(struct nvkm_fb *fb)62{63 kfree(fb->func);64 return fb;65}66 67int68r535_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