/*
* Copyright 2015 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 "priv.h"
#include "agp.h"
#include <core/option.h>
#include <core/pci.h>
void
nvkm_pci_msi_rearm(struct nvkm_device *device)
{
struct nvkm_pci *pci = device->pci;
if (pci && pci->msi)
pci->func->msi_rearm(pci);
}
u32
nvkm_pci_rd32(struct nvkm_pci *pci, u16 addr)
{
return nvkm_rd32(pci->subdev.device, pci->func->cfg.addr + addr);
}
void
nvkm_pci_wr08(struct nvkm_pci *pci, u16 addr, u8 data)
{
nvkm_wr08(pci->subdev.device, pci->func->cfg.addr + addr, data);
}
void
nvkm_pci_wr32(struct nvkm_pci *pci, u16 addr, u32 data)
{
nvkm_wr32(pci->subdev.device, pci->func->cfg.addr + addr, data);
}
u32
nvkm_pci_mask(struct nvkm_pci *pci, u16 addr, u32 mask, u32 value)
{
u32 data = nvkm_pci_rd32(pci, addr);
nvkm_pci_wr32(pci, addr, (data & ~mask) | value);
return data;
}
void
nvkm_pci_rom_shadow(struct nvkm_pci *pci, bool shadow)
{
u32 data = nvkm_pci_rd32(pci, 0 x0050);
if (shadow)
data |= 0 x00000001;
else
data &= ~0 x00000001;
nvkm_pci_wr32(pci, 0 x0050, data);
}
static int
nvkm_pci_fini(struct nvkm_subdev *subdev, bool suspend)
{
struct nvkm_pci *pci = nvkm_pci(subdev);
if (pci->agp.bridge)
nvkm_agp_fini(pci);
return 0 ;
}
static int
nvkm_pci_preinit(struct nvkm_subdev *subdev)
{
struct nvkm_pci *pci = nvkm_pci(subdev);
if (pci->agp.bridge)
nvkm_agp_preinit(pci);
return 0 ;
}
static int
nvkm_pci_oneinit(struct nvkm_subdev *subdev)
{
struct nvkm_pci *pci = nvkm_pci(subdev);
int ret;
if (pci_is_pcie(pci->pdev)) {
ret = nvkm_pcie_oneinit(pci);
if (ret)
return ret;
}
return 0 ;
}
static int
nvkm_pci_init(struct nvkm_subdev *subdev)
{
struct nvkm_pci *pci = nvkm_pci(subdev);
int ret;
if (pci->agp.bridge) {
ret = nvkm_agp_init(pci);
if (ret)
return ret;
} else if (pci_is_pcie(pci->pdev)) {
nvkm_pcie_init(pci);
}
if (pci->func->init)
pci->func->init(pci);
/* Ensure MSI interrupts are armed, for the case where there are
* already interrupts pending ( for whatever reason ) at load time .
*/
if (pci->msi)
pci->func->msi_rearm(pci);
return 0 ;
}
static void *
nvkm_pci_dtor(struct nvkm_subdev *subdev)
{
struct nvkm_pci *pci = nvkm_pci(subdev);
nvkm_agp_dtor(pci);
if (pci->msi)
pci_disable_msi(pci->pdev);
return nvkm_pci(subdev);
}
static const struct nvkm_subdev_func
nvkm_pci_func = {
.dtor = nvkm_pci_dtor,
.oneinit = nvkm_pci_oneinit,
.preinit = nvkm_pci_preinit,
.init = nvkm_pci_init,
.fini = nvkm_pci_fini,
};
int
nvkm_pci_new_(const struct nvkm_pci_func *func, struct nvkm_device *device,
enum nvkm_subdev_type type, int inst, struct nvkm_pci **ppci)
{
struct nvkm_pci *pci;
if (!(pci = *ppci = kzalloc(sizeof (**ppci), GFP_KERNEL)))
return -ENOMEM;
nvkm_subdev_ctor(&nvkm_pci_func, device, type, inst, &pci->subdev);
pci->func = func;
pci->pdev = device->func->pci(device)->pdev;
pci->pcie.speed = -1 ;
pci->pcie.width = -1 ;
if (device->type == NVKM_DEVICE_AGP)
nvkm_agp_ctor(pci);
switch (pci->pdev->device & 0 x0ff0) {
case 0 x00f0:
case 0 x02e0:
/* BR02? NFI how these would be handled yet exactly */
break ;
default :
switch (device->chipset) {
case 0 xaa:
/* reported broken, nv also disable it */
break ;
default :
pci->msi = true ;
break ;
}
}
#ifdef __BIG_ENDIAN
pci->msi = false ;
#endif
pci->msi = nvkm_boolopt(device->cfgopt, "NvMSI" , pci->msi);
if (pci->msi && func->msi_rearm) {
pci->msi = pci_enable_msi(pci->pdev) == 0 ;
if (pci->msi)
nvkm_debug(&pci->subdev, "MSI enabled\n" );
} else {
pci->msi = false ;
}
return 0 ;
}
Messung V0.5 in Prozent C=99 H=100 G=99
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-10-07)
¤
*© Formatika GbR, Deutschland