subdev/fb/ramga102.c

0001 /*
0002  * Copyright 2021 Red Hat Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  */
0022 #include "ram.h"
0023
0024 #include <subdev/bios.h>
0025 #include <subdev/bios/init.h>
0026 #include <subdev/bios/rammap.h>
0027
0028 static const struct nvkm_ram_func
0029 ga102_ram = {
0030 };
0031
0032 int
0033 ga102_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
0034 {
0035     struct nvkm_device *device = fb->subdev.device;
0036     enum nvkm_ram_type type = nvkm_fb_bios_memtype(device->bios);
0037     u32 size = nvkm_rd32(device, 0x1183a4);
0038
0039     return nvkm_ram_new_(&ga102_ram, fb, type, (u64)size << 20, pram);
0040 }