100 lines
3.2 KiB
C
100 lines
3.2 KiB
C
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/*
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* Copyright 2013 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "ram.h"
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#include <subdev/bios.h>
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#include <subdev/bios/init.h>
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#include <subdev/bios/rammap.h>
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static int
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gp100_ram_init(struct nvkm_ram *ram)
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{
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struct nvkm_subdev *subdev = &ram->fb->subdev;
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struct nvkm_device *device = subdev->device;
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struct nvkm_bios *bios = device->bios;
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u8 ver, hdr, cnt, len, snr, ssz;
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u32 data;
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int i;
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/* run a bunch of tables from rammap table. there's actually
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* individual pointers for each rammap entry too, but, nvidia
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* seem to just run the last two entries' scripts early on in
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* their init, and never again.. we'll just run 'em all once
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* for now.
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*
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* i strongly suspect that each script is for a separate mode
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* (likely selected by 0x9a065c's lower bits?), and the
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* binary driver skips the one that's already been setup by
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* the init tables.
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*/
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data = nvbios_rammapTe(bios, &ver, &hdr, &cnt, &len, &snr, &ssz);
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if (!data || hdr < 0x15)
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return -EINVAL;
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cnt = nvbios_rd08(bios, data + 0x14); /* guess at count */
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data = nvbios_rd32(bios, data + 0x10); /* guess u32... */
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if (cnt) {
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u32 save = nvkm_rd32(device, 0x9a065c) & 0x000000f0;
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for (i = 0; i < cnt; i++, data += 4) {
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if (i != save >> 4) {
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nvkm_mask(device, 0x9a065c, 0x000000f0, i << 4);
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nvbios_init(subdev, nvbios_rd32(bios, data));
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}
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}
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nvkm_mask(device, 0x9a065c, 0x000000f0, save);
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}
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nvkm_mask(device, 0x9a0584, 0x11000000, 0x00000000);
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nvkm_wr32(device, 0x10ecc0, 0xffffffff);
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nvkm_mask(device, 0x9a0160, 0x00000010, 0x00000010);
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return 0;
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}
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static u32
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gp100_ram_probe_fbpa(struct nvkm_device *device, int fbpa)
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{
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return nvkm_rd32(device, 0x90020c + (fbpa * 0x4000));
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}
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static const struct nvkm_ram_func
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gp100_ram = {
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.upper = 0x1000000000ULL,
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.probe_fbp = gm107_ram_probe_fbp,
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.probe_fbp_amount = gm200_ram_probe_fbp_amount,
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.probe_fbpa_amount = gp100_ram_probe_fbpa,
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.init = gp100_ram_init,
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};
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int
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gp100_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
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{
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struct nvkm_ram *ram;
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if (!(ram = *pram = kzalloc(sizeof(*ram), GFP_KERNEL)))
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return -ENOMEM;
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return gf100_ram_ctor(&gp100_ram, fb, ram);
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}
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