/*
* Copyright 2014 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 < bskeggs @ redhat . com >
*/
#include <subdev/bios.h>
#include <subdev/bios/npde.h>
#include <subdev/bios/pcir.h>
u32
nvbios_npdeTe(struct nvkm_bios *bios, u32 base)
{
struct nvbios_pcirT pcir;
u8 ver; u16 hdr;
u32 data = nvbios_pcirTp(bios, base, &ver, &hdr, &pcir);
if (data = (data + hdr + 0 x0f) & ~0 x0f, data) {
switch (nvbios_rd32(bios, data + 0 x00)) {
case 0 x4544504e: /* NPDE */
break ;
default :
nvkm_debug(&bios->subdev,
"%08x: NPDE signature (%08x) unknown\n" ,
data, nvbios_rd32(bios, data + 0 x00));
data = 0 ;
break ;
}
}
return data;
}
u32
nvbios_npdeTp(struct nvkm_bios *bios, u32 base, struct nvbios_npdeT *info)
{
u32 data = nvbios_npdeTe(bios, base);
memset(info, 0 x00, sizeof (*info));
if (data) {
info->image_size = nvbios_rd16(bios, data + 0 x08) * 512 ;
info->last = nvbios_rd08(bios, data + 0 x0a) & 0 x80;
}
return data;
}
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