- PCIGART patches for Alpha from Compaq

5 files changed, 24 insertions, 14 deletions

diff --git a/libdrm/xf86drm.c b/libdrm/xf86drm.c
index 4c8b1e84..8d663dae 100644
--- a/libdrm/xf86drm.c
+++ b/libdrm/xf86drm.c
@@ -67,11 +67,6 @@ extern int xf86RemoveSIGIOHandler(int fd);
 # endif
 #endif
 
-#if defined(__alpha__) && defined(__linux__)
-extern unsigned long _bus_base(void);
-#define BUS_BASE _bus_base()
-#endif
-
 /* Not all systems have MAP_FAILED defined */
 #ifndef MAP_FAILED
 #define MAP_FAILED ((void *)-1)
@@ -494,11 +489,6 @@ int drmAddMap(int fd,
     drm_map_t map;
 
     map.offset  = offset;
-#ifdef __alpha__
-    /* Make sure we add the bus_base to all but shm */
-    if (type != DRM_SHM)
-	map.offset += BUS_BASE;
-#endif
     map.size    = size;
     map.handle  = 0;
     map.type    = type;
diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index 227ec35a..b48d9b1f 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -710,7 +710,11 @@ typedef struct drm_device {
 	drm_agp_head_t    *agp;
 #endif
 #ifdef __alpha__
+#if LINUX_VERSION_CODE < 0x020403
 	struct pci_controler *hose;
+#else
+	struct pci_controller *hose;
+#endif
 #endif
 	drm_sg_mem_t      *sg;  /* Scatter gather memory */
 	unsigned long     *ctx_bitmap;
diff --git a/linux/drmP.h b/linux/drmP.h
index 227ec35a..b48d9b1f 100644
--- a/linux/drmP.h
+++ b/linux/drmP.h
@@ -710,7 +710,11 @@ typedef struct drm_device {
 	drm_agp_head_t    *agp;
 #endif
 #ifdef __alpha__
+#if LINUX_VERSION_CODE < 0x020403
 	struct pci_controler *hose;
+#else
+	struct pci_controller *hose;
+#endif
 #endif
 	drm_sg_mem_t      *sg;  /* Scatter gather memory */
 	unsigned long     *ctx_bitmap;
diff --git a/linux/radeon_cp.c b/linux/radeon_cp.c
index f8d8c2ea..670c3dd4 100644
--- a/linux/radeon_cp.c
+++ b/linux/radeon_cp.c
@@ -38,6 +38,12 @@
 
 #define RADEON_FIFO_DEBUG	0
 
+#if defined(__alpha__)
+# define PCIGART_ENABLED
+#else
+# undef PCIGART_ENABLED
+#endif
+
 
 /* CP microcode (from ATI) */
 static u32 radeon_cp_microcode[][2] = {
@@ -659,7 +665,7 @@ static int radeon_do_init_cp( drm_device_t *dev, drm_radeon_init_t *init )
 
 	dev_priv->is_pci = init->is_pci;
 
-#if 1
+#if !defined(PCIGART_ENABLED)
 	/* PCI support is not 100% working, so we disable it here.
 	 */
 	if ( dev_priv->is_pci ) {
@@ -671,7 +677,6 @@ static int radeon_do_init_cp( drm_device_t *dev, drm_radeon_init_t *init )
 #endif
 
 	if ( dev_priv->is_pci && !dev->sg ) {
-		DRM_DEBUG( "PCI GART memory not allocated!\n" );
 		DRM_ERROR( "PCI GART memory not allocated!\n" );
 		DRM(free)( dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER );
 		dev->dev_private = NULL;
@@ -878,7 +883,6 @@ static int radeon_do_init_cp( drm_device_t *dev, drm_radeon_init_t *init )
 	if ( dev_priv->is_pci ) {
 		dev_priv->phys_pci_gart = DRM(ati_pcigart_init)( dev );
 		if ( !dev_priv->phys_pci_gart ) {
-			DRM_DEBUG( "failed to init PCI GART!\n" );
 			DRM_ERROR( "failed to init PCI GART!\n" );
 			DRM(free)( dev_priv, sizeof(*dev_priv),
 				   DRM_MEM_DRIVER );
@@ -904,7 +908,14 @@ static int radeon_do_init_cp( drm_device_t *dev, drm_radeon_init_t *init )
 
 		/* Turn off AGP aperture -- is this required for PCIGART?
 		 */
-		RADEON_WRITE( RADEON_MC_AGP_LOCATION, 0 );
+		RADEON_WRITE( RADEON_MC_AGP_LOCATION, 0xffffffc0 ); /* ?? */
+		RADEON_WRITE( RADEON_AGP_COMMAND, 0 ); /* clear AGP_COMMAND */
+#if defined(__alpha__)
+		/* HACK! something is clobbering MEM_CNTL on Alpha! */
+		DRM_ERROR( "MEM_CNTL 0x%x\n",
+			   RADEON_READ(0x0140) );
+		RADEON_WRITE(0x0140, 0x29002901);
+#endif
 	} else {
 		/* Turn off PCI GART
 		 */
diff --git a/linux/radeon_drv.h b/linux/radeon_drv.h
index ca349c2c..4217beee 100644
--- a/linux/radeon_drv.h
+++ b/linux/radeon_drv.h
@@ -181,6 +181,7 @@ extern int radeon_cp_indirect( struct inode *inode, struct file *filp,
  * for Radeon kernel driver.
  */
 
+#define RADEON_AGP_COMMAND		0x0f60
 #define RADEON_AUX_SCISSOR_CNTL		0x26f0
 #	define RADEON_EXCLUSIVE_SCISSOR_0	(1 << 24)
 #	define RADEON_EXCLUSIVE_SCISSOR_1	(1 << 25)