| Message ID | 1513661883-28662-10-git-send-email-okaya@codeaurora.org (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
On 12/19/2017 12:37 AM, Sinan Kaya wrote: > pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as > where a PCI device is present. This restricts the device drivers to be > reused for other domain numbers. > > Getting ready to remove pci_get_bus_and_slot() function in favor of > pci_get_domain_bus_and_slot(). > > Replace pci_get_bus_and_slot() with pci_get_domain_bus_and_slot() > and extract the domain number from > 1. struct pci_dev > 2. struct pci_dev through drm_device->pdev > 3. struct pci_dev through fb->subdev->drm_device->pdev > > Signed-off-by: Sinan Kaya <okaya@codeaurora.org> > --- > drivers/gpu/drm/nouveau/dispnv04/arb.c | 4 +++- > drivers/gpu/drm/nouveau/dispnv04/hw.c | 10 +++++++--- > drivers/gpu/drm/nouveau/nouveau_drm.c | 3 ++- > drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c | 10 +++++++++- > 4 files changed, 21 insertions(+), 6 deletions(-) > > diff --git a/drivers/gpu/drm/nouveau/dispnv04/arb.c b/drivers/gpu/drm/nouveau/dispnv04/arb.c > index 90075b6..c79160c 100644 > --- a/drivers/gpu/drm/nouveau/dispnv04/arb.c > +++ b/drivers/gpu/drm/nouveau/dispnv04/arb.c > @@ -213,8 +213,10 @@ struct nv_sim_state { > if ((dev->pdev->device & 0xffff) == 0x01a0 /*CHIPSET_NFORCE*/ || > (dev->pdev->device & 0xffff) == 0x01f0 /*CHIPSET_NFORCE2*/) { > uint32_t type; > + int domain = pci_domain_nr(dev->pdev->bus); > > - pci_read_config_dword(pci_get_bus_and_slot(0, 1), 0x7c, &type); > + pci_read_config_dword(pci_get_domain_bus_and_slot(domain, 0, 1), > + 0x7c, &type); > > sim_data.memory_type = (type >> 12) & 1; > sim_data.memory_width = 64; > diff --git a/drivers/gpu/drm/nouveau/dispnv04/hw.c b/drivers/gpu/drm/nouveau/dispnv04/hw.c > index b985990..0c9bdf0 100644 > --- a/drivers/gpu/drm/nouveau/dispnv04/hw.c > +++ b/drivers/gpu/drm/nouveau/dispnv04/hw.c > @@ -216,12 +216,15 @@ > { > struct nvkm_pll_vals pllvals; > int ret; > + int domain; > + > + domain = pci_domain_nr(dev->pdev->bus); > > if (plltype == PLL_MEMORY && > (dev->pdev->device & 0x0ff0) == CHIPSET_NFORCE) { > uint32_t mpllP; > - > - pci_read_config_dword(pci_get_bus_and_slot(0, 3), 0x6c, &mpllP); > + pci_read_config_dword(pci_get_domain_bus_and_slot(domain, 0, 3), > + 0x6c, &mpllP); > mpllP = (mpllP >> 8) & 0xf; > if (!mpllP) > mpllP = 4; > @@ -232,7 +235,8 @@ > (dev->pdev->device & 0xff0) == CHIPSET_NFORCE2) { > uint32_t clock; > > - pci_read_config_dword(pci_get_bus_and_slot(0, 5), 0x4c, &clock); > + pci_read_config_dword(pci_get_domain_bus_and_slot(domain, 0, 5), > + 0x4c, &clock); > return clock / 1000; > } > > diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c > index 8d4a5be..33b6139 100644 > --- a/drivers/gpu/drm/nouveau/nouveau_drm.c > +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c > @@ -524,7 +524,8 @@ static int nouveau_drm_probe(struct pci_dev *pdev, > } > > /* subfunction one is a hdmi audio device? */ > - drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number, > + drm->hdmi_device = pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus), > + (unsigned int)pdev->bus->number, > PCI_DEVFN(PCI_SLOT(pdev->devfn), 1)); > > if (!drm->hdmi_device) { > diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c > index 4c07d10..18241c6 100644 > --- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c > +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c > @@ -28,8 +28,16 @@ > { > struct pci_dev *bridge; > u32 mem, mib; > + int domain = 0; > + struct pci_dev *pdev = NULL; > > - bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 1)); > + if (dev_is_pci(fb->subdev.device->dev)) > + pdev = to_pci_dev(fb->subdev.device->dev); > + > + if (pdev) > + domain = pci_domain_nr(pdev->bus); > + > + bridge = pci_get_domain_bus_and_slot(domain, 0, PCI_DEVFN(0, 1)); > if (!bridge) { > nvkm_error(&fb->subdev, "no bridge device\n"); > return -ENODEV; > Any feedback here? I don't have any hardware to test the changes. I just did a compile test.
diff --git a/drivers/gpu/drm/nouveau/dispnv04/arb.c b/drivers/gpu/drm/nouveau/dispnv04/arb.c index 90075b6..c79160c 100644 --- a/drivers/gpu/drm/nouveau/dispnv04/arb.c +++ b/drivers/gpu/drm/nouveau/dispnv04/arb.c @@ -213,8 +213,10 @@ struct nv_sim_state { if ((dev->pdev->device & 0xffff) == 0x01a0 /*CHIPSET_NFORCE*/ || (dev->pdev->device & 0xffff) == 0x01f0 /*CHIPSET_NFORCE2*/) { uint32_t type; + int domain = pci_domain_nr(dev->pdev->bus); - pci_read_config_dword(pci_get_bus_and_slot(0, 1), 0x7c, &type); + pci_read_config_dword(pci_get_domain_bus_and_slot(domain, 0, 1), + 0x7c, &type); sim_data.memory_type = (type >> 12) & 1; sim_data.memory_width = 64; diff --git a/drivers/gpu/drm/nouveau/dispnv04/hw.c b/drivers/gpu/drm/nouveau/dispnv04/hw.c index b985990..0c9bdf0 100644 --- a/drivers/gpu/drm/nouveau/dispnv04/hw.c +++ b/drivers/gpu/drm/nouveau/dispnv04/hw.c @@ -216,12 +216,15 @@ { struct nvkm_pll_vals pllvals; int ret; + int domain; + + domain = pci_domain_nr(dev->pdev->bus); if (plltype == PLL_MEMORY && (dev->pdev->device & 0x0ff0) == CHIPSET_NFORCE) { uint32_t mpllP; - - pci_read_config_dword(pci_get_bus_and_slot(0, 3), 0x6c, &mpllP); + pci_read_config_dword(pci_get_domain_bus_and_slot(domain, 0, 3), + 0x6c, &mpllP); mpllP = (mpllP >> 8) & 0xf; if (!mpllP) mpllP = 4; @@ -232,7 +235,8 @@ (dev->pdev->device & 0xff0) == CHIPSET_NFORCE2) { uint32_t clock; - pci_read_config_dword(pci_get_bus_and_slot(0, 5), 0x4c, &clock); + pci_read_config_dword(pci_get_domain_bus_and_slot(domain, 0, 5), + 0x4c, &clock); return clock / 1000; } diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 8d4a5be..33b6139 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -524,7 +524,8 @@ static int nouveau_drm_probe(struct pci_dev *pdev, } /* subfunction one is a hdmi audio device? */ - drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number, + drm->hdmi_device = pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus), + (unsigned int)pdev->bus->number, PCI_DEVFN(PCI_SLOT(pdev->devfn), 1)); if (!drm->hdmi_device) { diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c index 4c07d10..18241c6 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c @@ -28,8 +28,16 @@ { struct pci_dev *bridge; u32 mem, mib; + int domain = 0; + struct pci_dev *pdev = NULL; - bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 1)); + if (dev_is_pci(fb->subdev.device->dev)) + pdev = to_pci_dev(fb->subdev.device->dev); + + if (pdev) + domain = pci_domain_nr(pdev->bus); + + bridge = pci_get_domain_bus_and_slot(domain, 0, PCI_DEVFN(0, 1)); if (!bridge) { nvkm_error(&fb->subdev, "no bridge device\n"); return -ENODEV;
pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as where a PCI device is present. This restricts the device drivers to be reused for other domain numbers. Getting ready to remove pci_get_bus_and_slot() function in favor of pci_get_domain_bus_and_slot(). Replace pci_get_bus_and_slot() with pci_get_domain_bus_and_slot() and extract the domain number from 1. struct pci_dev 2. struct pci_dev through drm_device->pdev 3. struct pci_dev through fb->subdev->drm_device->pdev Signed-off-by: Sinan Kaya <okaya@codeaurora.org> --- drivers/gpu/drm/nouveau/dispnv04/arb.c | 4 +++- drivers/gpu/drm/nouveau/dispnv04/hw.c | 10 +++++++--- drivers/gpu/drm/nouveau/nouveau_drm.c | 3 ++- drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c | 10 +++++++++- 4 files changed, 21 insertions(+), 6 deletions(-)