ramgp102.c

 1// SPDX-License-Identifier: MIT
 2#include "ram.h"
 3
 4#include <subdev/bios.h>
 5
 6static const struct nvkm_ram_func
 7gp102_ram = {
 8	.init = gp100_ram_init,
 9};
10
11int
12gp102_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}