drm: remove the DRM pci domain

This patch removes the pci_domain from the DRM device structure, and
gets it via a macro that either asks the platform or does the alpha special
case. jgarzik asked for this to just use the platform magic, but I've no
alpha experience and I'd rather not just break it and wait for someone to
give out.

Signed-off-by: Dave Airlie <airlied@linux.ie>

4 files changed, 9 insertions, 7 deletions

diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h
index 9838e8ce6ff2..4f0de974c191 100644
--- a/drivers/char/drm/drmP.h
+++ b/drivers/char/drm/drmP.h
@@ -699,7 +699,6 @@ typedef struct drm_device {
         drm_agp_head_t *agp;    /**< AGP data */
 
         struct pci_dev *pdev;           /**< PCI device structure */
-        int pci_domain;                 /**< PCI bus domain number */
 #ifdef __alpha__
         struct pci_controller *hose;
 #endif
@@ -721,6 +720,12 @@ static __inline__ int drm_core_check_feature(struct drm_device *dev,
         return ((dev->driver->driver_features & feature) ? 1 : 0);
 }
 
+#ifdef __alpha__
+#define drm_get_pci_domain(dev) dev->hose->bus->number
+#else
+#define drm_get_pci_domain(dev) pci_domain_nr(dev->pdev->bus)
+#endif
+
 #if __OS_HAS_AGP
 static inline int drm_core_has_AGP(struct drm_device *dev)
 {
diff --git a/drivers/char/drm/drm_ioctl.c b/drivers/char/drm/drm_ioctl.c
index 9f20c2b5a366..e15899830581 100644
--- a/drivers/char/drm/drm_ioctl.c
+++ b/drivers/char/drm/drm_ioctl.c
@@ -127,7 +127,7 @@ int drm_setunique(struct inode *inode, struct file *filp,
         domain = bus >> 8;
         bus &= 0xff;
 
-        if ((domain != dev->pci_domain) ||
+        if ((domain != drm_get_pci_domain(dev)) ||
             (bus != dev->pdev->bus->number) ||
             (slot != PCI_SLOT(dev->pdev->devfn)) ||
             (func != PCI_FUNC(dev->pdev->devfn)))
@@ -149,7 +149,7 @@ static int drm_set_busid(drm_device_t * dev)
                 return ENOMEM;
 
         len = snprintf(dev->unique, dev->unique_len, "pci:%04x:%02x:%02x.%d",
-                       dev->pci_domain, dev->pdev->bus->number,
+                       drm_get_pci_domain(dev), dev->pdev->bus->number,
                        PCI_SLOT(dev->pdev->devfn),
                        PCI_FUNC(dev->pdev->devfn));
 
diff --git a/drivers/char/drm/drm_irq.c b/drivers/char/drm/drm_irq.c
index 41c7020c93ef..4553a3a1e496 100644
--- a/drivers/char/drm/drm_irq.c
+++ b/drivers/char/drm/drm_irq.c
@@ -64,7 +64,7 @@ int drm_irq_by_busid(struct inode *inode, struct file *filp,
         if (copy_from_user(&p, argp, sizeof(p)))
                 return -EFAULT;
 
-        if ((p.busnum >> 8) != dev->pci_domain ||
+        if ((p.busnum >> 8) != drm_get_pci_domain(dev) ||
             (p.busnum & 0xff) != dev->pdev->bus->number ||
             p.devnum != PCI_SLOT(dev->pdev->devfn) || p.funcnum != PCI_FUNC(dev->pdev->devfn))
                 return -EINVAL;
diff --git a/drivers/char/drm/drm_stub.c b/drivers/char/drm/drm_stub.c
index 96449d538e15..b1ead37c51d6 100644
--- a/drivers/char/drm/drm_stub.c
+++ b/drivers/char/drm/drm_stub.c
@@ -68,9 +68,6 @@ static int drm_fill_in_dev(drm_device_t * dev, struct pci_dev *pdev,
 
 #ifdef __alpha__
         dev->hose = pdev->sysdata;
-        dev->pci_domain = dev->hose->bus->number;
-#else
-        dev->pci_domain = 0;
 #endif
         dev->irq = pdev->irq;