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.

Use pci_get_domain_bus_and_slot() with a domain number of 0 where we can't
extract the domain number. Other places, use the actual domain number from
the device.

Signed-off-by: Sinan Kaya <ok...@codeaurora.org>
---
 drivers/gpu/drm/nouveau/dispnv04/arb.c           | 3 ++-
 drivers/gpu/drm/nouveau/dispnv04/hw.c            | 6 ++++--
 drivers/gpu/drm/nouveau/nouveau_drm.c            | 3 ++-
 drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c | 2 +-
 4 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv04/arb.c 
b/drivers/gpu/drm/nouveau/dispnv04/arb.c
index 90075b6..729d7d0 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/arb.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/arb.c
@@ -214,7 +214,8 @@ struct nv_sim_state {
            (dev->pdev->device & 0xffff) == 0x01f0 /*CHIPSET_NFORCE2*/) {
                uint32_t type;
 
-               pci_read_config_dword(pci_get_bus_and_slot(0, 1), 0x7c, &type);
+               pci_read_config_dword(pci_get_domain_bus_and_slot(0, 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..4b35093 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/hw.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/hw.c
@@ -221,7 +221,8 @@
            (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(0, 0, 3),
+                                     0x6c, &mpllP);
                mpllP = (mpllP >> 8) & 0xf;
                if (!mpllP)
                        mpllP = 4;
@@ -232,7 +233,8 @@
            (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(0, 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 595630d..0b6c639 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -406,7 +406,8 @@ 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 3c6a871..3d2a203 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c
@@ -29,7 +29,7 @@
        struct pci_dev *bridge;
        u32 mem, mib;
 
-       bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 1));
+       bridge = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0, 1));
        if (!bridge) {
                nvkm_error(&fb->subdev, "no bridge device\n");
                return -ENODEV;
-- 
1.9.1

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