1 // SPDX-License-Identifier: MIT
2 #include "ram.h"
3
4 #include <subdev/bios.h>
5
6 static const struct nvkm_ram_func
7 gp102_ram = {
8 .init = gp100_ram_init,
9 };
10
11 int
gp102_ram_new(struct nvkm_fb * fb,struct nvkm_ram ** pram)12 gp102_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
13 {
14 enum nvkm_ram_type type = nvkm_fb_bios_memtype(fb->subdev.device->bios);
15 const u32 rsvd_head = ( 256 * 1024); /* vga memory */
16 const u32 rsvd_tail = (1024 * 1024); /* vbios etc */
17 u64 size = fb->func->vidmem.size(fb);
18 int ret;
19
20 ret = nvkm_ram_new_(&gp102_ram, fb, type, size, pram);
21 if (ret)
22 return ret;
23
24 nvkm_mm_fini(&(*pram)->vram);
25
26 return nvkm_mm_init(&(*pram)->vram, NVKM_RAM_MM_NORMAL,
27 rsvd_head >> NVKM_RAM_MM_SHIFT,
28 (size - rsvd_head - rsvd_tail) >> NVKM_RAM_MM_SHIFT,
29 1);
30
31 }
32