| /* |
| * Copyright 2013 Red Hat Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: Ben Skeggs |
| */ |
| #include "ram.h" |
| |
| #include <subdev/bios.h> |
| #include <subdev/bios/init.h> |
| #include <subdev/bios/rammap.h> |
| |
| static int |
| gp100_ram_init(struct nvkm_ram *ram) |
| { |
| struct nvkm_subdev *subdev = &ram->fb->subdev; |
| struct nvkm_device *device = subdev->device; |
| struct nvkm_bios *bios = device->bios; |
| u8 ver, hdr, cnt, len, snr, ssz; |
| u32 data; |
| int i; |
| |
| /* run a bunch of tables from rammap table. there's actually |
| * individual pointers for each rammap entry too, but, nvidia |
| * seem to just run the last two entries' scripts early on in |
| * their init, and never again.. we'll just run 'em all once |
| * for now. |
| * |
| * i strongly suspect that each script is for a separate mode |
| * (likely selected by 0x9a065c's lower bits?), and the |
| * binary driver skips the one that's already been setup by |
| * the init tables. |
| */ |
| data = nvbios_rammapTe(bios, &ver, &hdr, &cnt, &len, &snr, &ssz); |
| if (!data || hdr < 0x15) |
| return -EINVAL; |
| |
| cnt = nvbios_rd08(bios, data + 0x14); /* guess at count */ |
| data = nvbios_rd32(bios, data + 0x10); /* guess u32... */ |
| if (cnt) { |
| u32 save = nvkm_rd32(device, 0x9a065c) & 0x000000f0; |
| for (i = 0; i < cnt; i++, data += 4) { |
| if (i != save >> 4) { |
| nvkm_mask(device, 0x9a065c, 0x000000f0, i << 4); |
| nvbios_init(subdev, nvbios_rd32(bios, data)); |
| } |
| } |
| nvkm_mask(device, 0x9a065c, 0x000000f0, save); |
| } |
| |
| nvkm_mask(device, 0x9a0584, 0x11000000, 0x00000000); |
| nvkm_wr32(device, 0x10ecc0, 0xffffffff); |
| nvkm_mask(device, 0x9a0160, 0x00000010, 0x00000010); |
| return 0; |
| } |
| |
| static u32 |
| gp100_ram_probe_fbpa(struct nvkm_device *device, int fbpa) |
| { |
| return nvkm_rd32(device, 0x90020c + (fbpa * 0x4000)); |
| } |
| |
| static const struct nvkm_ram_func |
| gp100_ram = { |
| .upper = 0x1000000000, |
| .probe_fbp = gm107_ram_probe_fbp, |
| .probe_fbp_amount = gm200_ram_probe_fbp_amount, |
| .probe_fbpa_amount = gp100_ram_probe_fbpa, |
| .init = gp100_ram_init, |
| }; |
| |
| int |
| gp100_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram) |
| { |
| struct nvkm_ram *ram; |
| |
| if (!(ram = *pram = kzalloc(sizeof(*ram), GFP_KERNEL))) |
| return -ENOMEM; |
| |
| return gf100_ram_ctor(&gp100_ram, fb, ram); |
| |
| } |