drm: add radeon PCI express support

Add support for Radeon PCI Express cards (needs a new X.org DDX)
Also allows PCI GART table to be stored in VRAM for non PCIE cards

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

1 files changed, 18 insertions, 6 deletions

diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h
index 6f98701dfe15..c164c76e33f3 100644
--- a/drivers/char/drm/drmP.h
+++ b/drivers/char/drm/drmP.h
@@ -532,6 +532,17 @@ typedef struct drm_vbl_sig {
 } drm_vbl_sig_t;
 
 
+/* location of GART table */
+#define DRM_ATI_GART_MAIN 1
+#define DRM_ATI_GART_FB   2
+
+typedef struct ati_pcigart_info {
+        int gart_table_location;
+        int is_pcie;
+        unsigned long addr;
+        dma_addr_t bus_addr;
+} drm_ati_pcigart_info;
+
 /**
  * DRM driver structure. This structure represent the common code for
  * a family of cards. There will one drm_device for each card present
@@ -975,12 +986,8 @@ extern int            drm_sg_free(struct inode *inode, struct file *filp,
                                    unsigned int cmd, unsigned long arg);
 
                                /* ATI PCIGART support (ati_pcigart.h) */
-extern int            drm_ati_pcigart_init(drm_device_t *dev,
-                                            unsigned long *addr,
-                                            dma_addr_t *bus_addr);
-extern int            drm_ati_pcigart_cleanup(drm_device_t *dev,
-                                               unsigned long addr,
-                                               dma_addr_t bus_addr);
+extern int drm_ati_pcigart_init(drm_device_t * dev, drm_ati_pcigart_info *gart_info);
+extern int drm_ati_pcigart_cleanup(drm_device_t * dev, drm_ati_pcigart_info *gart_info);
 
 extern drm_dma_handle_t *drm_pci_alloc(drm_device_t *dev, size_t size,
                                        size_t align, dma_addr_t maxaddr);
@@ -1038,6 +1045,11 @@ static __inline__ int drm_device_is_agp(drm_device_t *dev)
         return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
 }
 
+static __inline__ int drm_device_is_pcie(drm_device_t *dev)
+{
+        return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
+}
+
 static __inline__ void drm_core_dropmap(struct drm_map *map)
 {
 }