1 /*
2 * Copyright 2021 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 "ram.h"
23
24 #include <subdev/bios.h>
25 #include <subdev/bios/init.h>
26 #include <subdev/bios/rammap.h>
27
28 static const struct nvkm_ram_func
29 ga102_ram = {
30 };
31
32 int
ga102_ram_new(struct nvkm_fb * fb,struct nvkm_ram ** pram)33 ga102_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
34 {
35 struct nvkm_device *device = fb->subdev.device;
36 enum nvkm_ram_type type = nvkm_fb_bios_memtype(device->bios);
37 u32 size = nvkm_rd32(device, 0x1183a4);
38
39 return nvkm_ram_new_(&ga102_ram, fb, type, (u64)size << 20, pram);
40 }
41