/*
* Copyright 2012 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 .
*
*/
#include "priv.h"
#include <core/pci.h>
struct priv {
struct pci_dev *pdev;
void __iomem *rom;
size_t size;
};
static u32
pcirom_read(void *data, u32 offset, u32 length, struct nvkm_bios *bios)
{
struct priv *priv = data;
if (offset + length <= priv->size) {
memcpy_fromio(bios->data + offset, priv->rom + offset, length);
return length;
}
return 0 ;
}
static void
pcirom_fini(void *data)
{
struct priv *priv = data;
pci_unmap_rom(priv->pdev, priv->rom);
pci_disable_rom(priv->pdev);
kfree(priv);
}
static void *
pcirom_init(struct nvkm_bios *bios, const char *name)
{
struct nvkm_device *device = bios->subdev.device;
struct priv *priv = NULL;
struct pci_dev *pdev;
int ret;
if (device->func->pci)
pdev = device->func->pci(device)->pdev;
else
return ERR_PTR(-ENODEV);
if (!(ret = pci_enable_rom(pdev))) {
if (ret = -ENOMEM,
(priv = kmalloc(sizeof (*priv), GFP_KERNEL))) {
if (ret = -EFAULT,
(priv->rom = pci_map_rom(pdev, &priv->size))) {
priv->pdev = pdev;
return priv;
}
kfree(priv);
}
pci_disable_rom(pdev);
}
return ERR_PTR(ret);
}
const struct nvbios_source
nvbios_pcirom = {
.name = "PCIROM" ,
.init = pcirom_init,
.fini = pcirom_fini,
.read = pcirom_read,
.rw = true ,
};
static void *
platform_init(struct nvkm_bios *bios, const char *name)
{
struct nvkm_device *device = bios->subdev.device;
struct pci_dev *pdev;
struct priv *priv;
int ret = -ENOMEM;
if (device->func->pci)
pdev = device->func->pci(device)->pdev;
else
return ERR_PTR(-ENODEV);
if (!pdev->rom || pdev->romlen == 0 )
return ERR_PTR(-ENODEV);
if ((priv = kmalloc(sizeof (*priv), GFP_KERNEL))) {
priv->size = pdev->romlen;
if (ret = -ENODEV,
(priv->rom = ioremap(pdev->rom, pdev->romlen)))
return priv;
kfree(priv);
}
return ERR_PTR(ret);
}
static void
platform_fini(void *data)
{
struct priv *priv = data;
iounmap(priv->rom);
kfree(priv);
}
const struct nvbios_source
nvbios_platform = {
.name = "PLATFORM" ,
.init = platform_init,
.fini = platform_fini,
.read = pcirom_read,
.rw = true ,
};
Messung V0.5 in Prozent C=100 H=100 G=100
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-10-06)
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