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26 #include <subdev/bios.h>
27 #include <subdev/bios/init.h>
28 #include <subdev/bios/rammap.h>
31 gp100_ram_init(struct nvkm_ram *ram)
33 struct nvkm_subdev *subdev = &ram->fb->subdev;
34 struct nvkm_device *device = subdev->device;
35 struct nvkm_bios *bios = device->bios;
36 u8 ver, hdr, cnt, len, snr, ssz;
40 /* run a bunch of tables from rammap table. there's actually
41 * individual pointers for each rammap entry too, but, nvidia
42 * seem to just run the last two entries' scripts early on in
43 * their init, and never again.. we'll just run 'em all once
46 * i strongly suspect that each script is for a separate mode
47 * (likely selected by 0x9a065c's lower bits?), and the
48 * binary driver skips the one that's already been setup by
51 data = nvbios_rammapTe(bios, &ver, &hdr, &cnt, &len, &snr, &ssz);
52 if (!data || hdr < 0x15)
55 cnt = nvbios_rd08(bios, data + 0x14); /* guess at count */
56 data = nvbios_rd32(bios, data + 0x10); /* guess u32... */
58 u32 save = nvkm_rd32(device, 0x9a065c) & 0x000000f0;
59 for (i = 0; i < cnt; i++, data += 4) {
61 nvkm_mask(device, 0x9a065c, 0x000000f0, i << 4);
62 nvbios_exec(&(struct nvbios_init) {
65 .offset = nvbios_rd32(bios, data),
70 nvkm_mask(device, 0x9a065c, 0x000000f0, save);
73 nvkm_mask(device, 0x9a0584, 0x11000000, 0x00000000);
74 nvkm_wr32(device, 0x10ecc0, 0xffffffff);
75 nvkm_mask(device, 0x9a0160, 0x00000010, 0x00000010);
79 static const struct nvkm_ram_func
81 .init = gp100_ram_init,
87 gp100_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
90 struct nvkm_subdev *subdev = &fb->subdev;
91 struct nvkm_device *device = subdev->device;
92 enum nvkm_ram_type type = nvkm_fb_bios_memtype(device->bios);
93 const u32 rsvd_head = ( 256 * 1024); /* vga memory */
94 const u32 rsvd_tail = (1024 * 1024); /* vbios etc */
95 u32 fbpa_num = nvkm_rd32(device, 0x022438), fbpa;
96 u32 fbio_opt = nvkm_rd32(device, 0x021c14);
97 u64 part, size = 0, comm = ~0ULL;
101 nvkm_debug(subdev, "022438: %08x\n", fbpa_num);
102 nvkm_debug(subdev, "021c14: %08x\n", fbio_opt);
103 for (fbpa = 0; fbpa < fbpa_num; fbpa++) {
104 if (!(fbio_opt & (1 << fbpa))) {
105 part = nvkm_rd32(device, 0x90020c + (fbpa * 0x4000));
106 nvkm_debug(subdev, "fbpa %02x: %lld MiB\n", fbpa, part);
111 comm = min(comm, part);
117 ret = nvkm_ram_new_(&gp100_ram_func, fb, type, size, 0, &ram);
122 nvkm_mm_fini(&ram->vram);
125 ret = nvkm_mm_init(&ram->vram, rsvd_head >> NVKM_RAM_MM_SHIFT,
126 ((comm * fbpa_num) - rsvd_head) >>
127 NVKM_RAM_MM_SHIFT, 1);
131 ret = nvkm_mm_init(&ram->vram, (0x1000000000ULL + comm) >>
133 (size - (comm * fbpa_num) - rsvd_tail) >>
134 NVKM_RAM_MM_SHIFT, 1);
138 ret = nvkm_mm_init(&ram->vram, rsvd_head >> NVKM_RAM_MM_SHIFT,
139 (size - rsvd_head - rsvd_tail) >>
140 NVKM_RAM_MM_SHIFT, 1);