147 lines
4.4 KiB
C
147 lines
4.4 KiB
C
/*
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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_exec(&(struct nvbios_init) {
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.subdev = subdev,
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.bios = bios,
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.offset = nvbios_rd32(bios, data),
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.execute = 1,
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});
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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 const struct nvkm_ram_func
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gp100_ram_func = {
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.init = gp100_ram_init,
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.get = gf100_ram_get,
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.put = gf100_ram_put,
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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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struct nvkm_subdev *subdev = &fb->subdev;
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struct nvkm_device *device = subdev->device;
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enum nvkm_ram_type type = nvkm_fb_bios_memtype(device->bios);
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const u32 rsvd_head = ( 256 * 1024); /* vga memory */
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const u32 rsvd_tail = (1024 * 1024); /* vbios etc */
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u32 fbpa_num = nvkm_rd32(device, 0x022438), fbpa;
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u32 fbio_opt = nvkm_rd32(device, 0x021c14);
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u64 part, size = 0, comm = ~0ULL;
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bool mixed = false;
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int ret;
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nvkm_debug(subdev, "022438: %08x\n", fbpa_num);
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nvkm_debug(subdev, "021c14: %08x\n", fbio_opt);
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for (fbpa = 0; fbpa < fbpa_num; fbpa++) {
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if (!(fbio_opt & (1 << fbpa))) {
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part = nvkm_rd32(device, 0x90020c + (fbpa * 0x4000));
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nvkm_debug(subdev, "fbpa %02x: %lld MiB\n", fbpa, part);
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part = part << 20;
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if (part != comm) {
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if (comm != ~0ULL)
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mixed = true;
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comm = min(comm, part);
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}
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size = size + part;
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}
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}
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ret = nvkm_ram_new_(&gp100_ram_func, fb, type, size, 0, &ram);
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*pram = ram;
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if (ret)
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return ret;
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nvkm_mm_fini(&ram->vram);
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if (mixed) {
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ret = nvkm_mm_init(&ram->vram, rsvd_head >> NVKM_RAM_MM_SHIFT,
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((comm * fbpa_num) - rsvd_head) >>
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NVKM_RAM_MM_SHIFT, 1);
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if (ret)
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return ret;
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ret = nvkm_mm_init(&ram->vram, (0x1000000000ULL + comm) >>
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NVKM_RAM_MM_SHIFT,
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(size - (comm * fbpa_num) - rsvd_tail) >>
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NVKM_RAM_MM_SHIFT, 1);
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if (ret)
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return ret;
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} else {
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ret = nvkm_mm_init(&ram->vram, rsvd_head >> NVKM_RAM_MM_SHIFT,
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(size - rsvd_head - rsvd_tail) >>
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NVKM_RAM_MM_SHIFT, 1);
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if (ret)
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return ret;
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}
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return 0;
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}
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