/*
* 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/image.h>
#include <subdev/bios/pcir.h>
#include <subdev/bios/npde.h>
static bool
nvbios_imagen(struct nvkm_bios *bios, struct nvbios_image *image)
{
struct nvkm_subdev *subdev = &bios->subdev;
struct nvbios_pcirT pcir;
struct nvbios_npdeT npde;
u8 ver;
u16 hdr;
u32 data;
switch ((data = nvbios_rd16(bios, image->base + 0 x00))) {
case 0 xaa55:
case 0 xbb77:
case 0 x4e56: /* NV */
break ;
default :
nvkm_debug(subdev, "%08x: ROM signature (%04x) unknown\n" ,
image->base, data);
return false ;
}
if (!(data = nvbios_pcirTp(bios, image->base, &ver, &hdr, &pcir)))
return false ;
image->size = pcir.image_size;
image->type = pcir.image_type;
image->last = pcir.last;
if (image->type != 0 x70) {
if (!(data = nvbios_npdeTp(bios, image->base, &npde)))
return true ;
image->size = npde.image_size;
image->last = npde.last;
} else {
image->last = true ;
}
return true ;
}
bool
nvbios_image(struct nvkm_bios *bios, int idx, struct nvbios_image *image)
{
u32 imaged_addr = bios->imaged_addr;
memset(image, 0 x00, sizeof (*image));
bios->imaged_addr = 0 ;
do {
image->base += image->size;
if (image->last || !nvbios_imagen(bios, image)) {
bios->imaged_addr = imaged_addr;
return false ;
}
} while (idx--);
bios->imaged_addr = imaged_addr;
return true ;
}
Messung V0.5 in Prozent C=98 H=90 G=94
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-10-06)
¤
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