/* * 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"nv50.h"
/* our heuristics can't detect whether the board has had its * devinit scripts executed or not if the display engine is * missing, assume it's a secondary gpu which requires post
*/ if (!base->post) {
nvkm_devinit_disable(base); if (!device->disp)
base->post = true;
}
/* magic to detect whether or not x86 vbios code has executed * the devinit scripts to initialise the board
*/ if (!base->post) { if (!nvkm_rdvgac(device, 0, 0x00) &&
!nvkm_rdvgac(device, 0, 0x1a)) {
nvkm_debug(subdev, "adaptor not initialised\n");
base->post = true;
}
}
}
/* if we ran the init tables, we have to execute the first script * pointer of each dcb entry's display encoder table in order * to properly initialise each encoder.
*/ while (init->base.post && dcb_outp_parse(bios, i, &ver, &hdr, &outp)) { if (nvbios_outp_match(bios, outp.hasht, outp.hashm,
&ver, &hdr, &cnt, &len, &info)) {
nvbios_init(subdev, info.script[0],
init.outp = &outp;
init.or = ffs(outp.or) - 1;
init.link = outp.sorconf.link == 2;
);
}
i++;
}
}
int
nv50_devinit_new_(conststruct nvkm_devinit_func *func, struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_devinit **pinit)
{ struct nv50_devinit *init;
if (!(init = kzalloc(sizeof(*init), GFP_KERNEL))) return -ENOMEM;
*pinit = &init->base;
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