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authorStuart Bennett <stuart@freedesktop.org>2009-03-24 23:26:30 +0000
committerStuart Bennett <stuart@freedesktop.org>2009-03-25 02:50:34 +0000
commit03ca202fa56ad7711ad0f7527a1e537154093e8a (patch)
treeefb9e6c5c0c7fd1609b4fb075b1653b33b675b8e /shared-core
parentb71f3f114e6f0e94e15958c0aa12e804392f9df2 (diff)
nouveau: add linux compat defines for PCI config access, use them for nvidia IGPs
Diffstat (limited to 'shared-core')
-rw-r--r--shared-core/nouveau_mem.c48
1 files changed, 30 insertions, 18 deletions
diff --git a/shared-core/nouveau_mem.c b/shared-core/nouveau_mem.c
index 6d928f45..af23214e 100644
--- a/shared-core/nouveau_mem.c
+++ b/shared-core/nouveau_mem.c
@@ -231,34 +231,46 @@ void nouveau_mem_close(struct drm_device *dev)
nouveau_mem_takedown(&dev_priv->pci_heap);
}
-/*XXX won't work on BSD because of pci_read_config_dword */
+/*XXX BSD needs compat functions for pci access
+ * #define DRM_PCI_DEV struct device
+ * #define drm_pci_get_bsf pci_get_bsf
+ * and a small inline to do *val = pci_read_config(pdev->device, where, 4);
+ * might work
+ */
+static uint32_t nforce_pci_fn_read_config_dword(int devfn, int where, uint32_t *val)
+{
+#ifdef __linux__
+ DRM_PCI_DEV *pdev;
+
+ if (!(pdev = drm_pci_get_bsf(0, 0, devfn))) {
+ DRM_ERROR("nForce PCI device function 0x%02x not found\n",
+ devfn);
+ return -ENODEV;
+ }
+
+ return drm_pci_read_config_dword(pdev, where, val);
+#else
+ DRM_ERROR("BSD compat for checking IGP memory amount needed\n");
+ return 0;
+#endif
+}
+
static uint32_t
nouveau_mem_fb_amount_igp(struct drm_device *dev)
{
-#if defined(__linux__)
struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct pci_dev *bridge;
- uint32_t mem;
-
- bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0,1));
- if (!bridge) {
- DRM_ERROR("no bridge device\n");
- return 0;
- }
+ uint32_t mem = 0;
- if (dev_priv->flags&NV_NFORCE) {
- pci_read_config_dword(bridge, 0x7C, &mem);
+ if (dev_priv->flags & NV_NFORCE) {
+ nforce_pci_fn_read_config_dword(1, 0x7C, &mem);
return (uint64_t)(((mem >> 6) & 31) + 1)*1024*1024;
- } else
- if(dev_priv->flags&NV_NFORCE2) {
- pci_read_config_dword(bridge, 0x84, &mem);
+ }
+ if (dev_priv->flags & NV_NFORCE2) {
+ nforce_pci_fn_read_config_dword(1, 0x84, &mem);
return (uint64_t)(((mem >> 4) & 127) + 1)*1024*1024;
}
DRM_ERROR("impossible!\n");
-#else
- DRM_ERROR("Linux kernel >= 2.6.19 required to check for igp memory amount\n");
-#endif
return 0;
}