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drm/nouveau/pci: implement pcie speed change for Fermi

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v5: don't set kepler func pointers
v6: fix alignment and line length
This commit is contained in:
Karol Herbst 2016-01-05 21:44:39 +01:00 committed by Ben Skeggs
parent 5cca4bdc0d
commit 7c923844bf
3 changed files with 74 additions and 0 deletions
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57
drivers/gpu/drm/nouveau/nvkm/subdev/pci/gf100.c
View file

@ -29,6 +29,53 @@ gf100_pci_msi_rearm(struct nvkm_pci *pci)
nvkm_pci_wr08(pci, 0x0704, 0xff);
}
void
gf100_pcie_set_version(struct nvkm_pci *pci, u8 ver)
{
struct nvkm_device *device = pci->subdev.device;
nvkm_mask(device, 0x02241c, 0x1, ver > 1 ? 1 : 0);
}
int
gf100_pcie_version(struct nvkm_pci *pci)
{
struct nvkm_device *device = pci->subdev.device;
return (nvkm_rd32(device, 0x02241c) & 0x1) + 1;
}
void
gf100_pcie_set_cap_speed(struct nvkm_pci *pci, bool full_speed)
{
struct nvkm_device *device = pci->subdev.device;
nvkm_mask(device, 0x02241c, 0x80, full_speed ? 0x80 : 0x0);
}
int
gf100_pcie_cap_speed(struct nvkm_pci *pci)
{
struct nvkm_device *device = pci->subdev.device;
u8 punits_pci_cap_speed = nvkm_rd32(device, 0x02241c) & 0x80;
if (punits_pci_cap_speed == 0x80)
return 1;
return 0;
}
int
gf100_pcie_init(struct nvkm_pci *pci)
{
bool full_speed = g84_pcie_cur_speed(pci) == NVKM_PCIE_SPEED_5_0;
gf100_pcie_set_cap_speed(pci, full_speed);
return 0;
}
int
gf100_pcie_set_link(struct nvkm_pci *pci, enum nvkm_pcie_speed speed, u8 width)
{
gf100_pcie_set_cap_speed(pci, speed == NVKM_PCIE_SPEED_5_0);
g84_pcie_set_link_speed(pci, speed);
return 0;
}
static const struct nvkm_pci_func
gf100_pci_func = {
.init = g84_pci_init,
@ -36,6 +83,16 @@ gf100_pci_func = {
.wr08 = nv40_pci_wr08,
.wr32 = nv40_pci_wr32,
.msi_rearm = gf100_pci_msi_rearm,
.pcie.init = gf100_pcie_init,
.pcie.set_link = gf100_pcie_set_link,
.pcie.max_speed = g84_pcie_max_speed,
.pcie.cur_speed = g84_pcie_cur_speed,
.pcie.set_version = gf100_pcie_set_version,
.pcie.version = gf100_pcie_version,
.pcie.version_supported = g94_pcie_version_supported,
};
int

10
drivers/gpu/drm/nouveau/nvkm/subdev/pci/gf106.c
View file

@ -30,6 +30,16 @@ gf106_pci_func = {
.wr08 = nv40_pci_wr08,
.wr32 = nv40_pci_wr32,
.msi_rearm = nv40_pci_msi_rearm,
.pcie.init = gf100_pcie_init,
.pcie.set_link = gf100_pcie_set_link,
.pcie.max_speed = g84_pcie_max_speed,
.pcie.cur_speed = g84_pcie_cur_speed,
.pcie.set_version = gf100_pcie_set_version,
.pcie.version = gf100_pcie_version,
.pcie.version_supported = g94_pcie_version_supported,
};
int

7
drivers/gpu/drm/nouveau/nvkm/subdev/pci/priv.h
View file

@ -46,6 +46,13 @@ int g84_pcie_set_link(struct nvkm_pci *, enum nvkm_pcie_speed, u8);
int g94_pcie_version_supported(struct nvkm_pci *);
void gf100_pcie_set_version(struct nvkm_pci *, u8);
int gf100_pcie_version(struct nvkm_pci *);
void gf100_pcie_set_cap_speed(struct nvkm_pci *, bool);
int gf100_pcie_cap_speed(struct nvkm_pci *);
int gf100_pcie_init(struct nvkm_pci *);
int gf100_pcie_set_link(struct nvkm_pci *, enum nvkm_pcie_speed, u8);
int nvkm_pcie_oneinit(struct nvkm_pci *);
int nvkm_pcie_init(struct nvkm_pci *);
#endif