Merged ati-pcigart-1-0-0

1 files changed, 78 insertions, 17 deletions

diff --git a/linux/r128_cce.c b/linux/r128_cce.c
index c0e20c21..1ced05fe 100644
--- a/linux/r128_cce.c
+++ b/linux/r128_cce.c
@@ -178,6 +178,8 @@ static void r128_cce_load_microcode( drm_r128_private_t *dev_priv )
 {
 	int i;
 
+	DRM_DEBUG( "%s\n", __FUNCTION__ );
+
 	r128_do_wait_for_idle( dev_priv );
 
 	R128_WRITE( R128_PM4_MICROCODE_ADDR, 0 );
@@ -208,7 +210,7 @@ int r128_do_cce_idle( drm_r128_private_t *dev_priv )
 	int i;
 
 	for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) {
-		if ( *dev_priv->ring.head == dev_priv->ring.tail ) {
+		if ( GET_RING_HEAD( &dev_priv->ring ) == dev_priv->ring.tail ) {
 			int pm4stat = R128_READ( R128_PM4_STAT );
 			if ( ( (pm4stat & R128_PM4_FIFOCNT_MASK) >=
 			       dev_priv->cce_fifo_size ) &&
@@ -249,7 +251,7 @@ static void r128_do_cce_reset( drm_r128_private_t *dev_priv )
 {
 	R128_WRITE( R128_PM4_BUFFER_DL_WPTR, 0 );
 	R128_WRITE( R128_PM4_BUFFER_DL_RPTR, 0 );
-	*dev_priv->ring.head = 0;
+	SET_RING_HEAD( &dev_priv->ring, 0 );
 	dev_priv->ring.tail = 0;
 }
 
@@ -312,19 +314,43 @@ static void r128_cce_init_ring_buffer( drm_device_t *dev )
 	u32 ring_start;
 	u32 tmp;
 
+	DRM_DEBUG( "%s\n", __FUNCTION__ );
+
 	/* The manual (p. 2) says this address is in "VM space".  This
 	 * means it's an offset from the start of AGP space.
 	 */
-	ring_start = dev_priv->cce_ring->offset - dev->agp->base;
+#if __REALLY_HAVE_AGP
+	if ( !dev_priv->is_pci )
+		ring_start = dev_priv->cce_ring->offset - dev->agp->base;
+	else
+#endif
+		ring_start = dev_priv->cce_ring->offset - dev->sg->handle;
+
 	R128_WRITE( R128_PM4_BUFFER_OFFSET, ring_start | R128_AGP_OFFSET );
 
 	R128_WRITE( R128_PM4_BUFFER_DL_WPTR, 0 );
 	R128_WRITE( R128_PM4_BUFFER_DL_RPTR, 0 );
 
 	/* DL_RPTR_ADDR is a physical address in AGP space. */
-	*dev_priv->ring.head = 0;
-	R128_WRITE( R128_PM4_BUFFER_DL_RPTR_ADDR,
-		    dev_priv->ring_rptr->offset );
+	SET_RING_HEAD( &dev_priv->ring, 0 );
+
+	if ( !dev_priv->is_pci ) {
+		R128_WRITE( R128_PM4_BUFFER_DL_RPTR_ADDR,
+			    dev_priv->ring_rptr->offset );
+	} else {
+		drm_sg_mem_t *entry = dev->sg;
+		unsigned long tmp_ofs, page_ofs;
+
+		tmp_ofs = dev_priv->ring_rptr->offset - dev->sg->handle;
+		page_ofs = tmp_ofs >> PAGE_SHIFT;
+
+		R128_WRITE( R128_PM4_BUFFER_DL_RPTR_ADDR,
+			    virt_to_bus(entry->pagelist[page_ofs]->virtual));
+
+		DRM_DEBUG( "ring rptr: offset=0x%08lx handle=0x%08lx\n",
+			   virt_to_bus(entry->pagelist[page_ofs]->virtual),
+			   entry->handle + tmp_ofs );
+	}
 
 	/* Set watermark control */
 	R128_WRITE( R128_PM4_BUFFER_WM_CNTL,
@@ -346,6 +372,8 @@ static int r128_do_init_cce( drm_device_t *dev, drm_r128_init_t *init )
 	drm_r128_private_t *dev_priv;
 	struct list_head *list;
 
+	DRM_DEBUG( "%s\n", __FUNCTION__ );
+
 	dev_priv = DRM(alloc)( sizeof(drm_r128_private_t), DRM_MEM_DRIVER );
 	if ( dev_priv == NULL )
 		return -ENOMEM;
@@ -355,11 +383,9 @@ static int r128_do_init_cce( drm_device_t *dev, drm_r128_init_t *init )
 
 	dev_priv->is_pci = init->is_pci;
 
-	/* GH: We don't support PCI cards until PCI GART is implemented.
-	 * Fail here so we can remove all checks for PCI cards around
-	 * the CCE ring code.
-	 */
-	if ( dev_priv->is_pci ) {
+	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;
 		return -EINVAL;
@@ -368,6 +394,7 @@ static int r128_do_init_cce( drm_device_t *dev, drm_r128_init_t *init )
 	dev_priv->usec_timeout = init->usec_timeout;
 	if ( dev_priv->usec_timeout < 1 ||
 	     dev_priv->usec_timeout > R128_MAX_USEC_TIMEOUT ) {
+		DRM_DEBUG( "TIMEOUT problem!\n" );
 		DRM(free)( dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER );
 		dev->dev_private = NULL;
 		return -EINVAL;
@@ -387,6 +414,7 @@ static int r128_do_init_cce( drm_device_t *dev, drm_r128_init_t *init )
 	     ( init->cce_mode != R128_PM4_128BM_64INDBM ) &&
 	     ( init->cce_mode != R128_PM4_64BM_128INDBM ) &&
 	     ( init->cce_mode != R128_PM4_64BM_64VCBM_64INDBM ) ) {
+		DRM_DEBUG( "Bad cce_mode!\n" );
 		DRM(free)( dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER );
 		dev->dev_private = NULL;
 		return -EINVAL;
@@ -476,9 +504,24 @@ static int r128_do_init_cce( drm_device_t *dev, drm_r128_init_t *init )
 		(drm_r128_sarea_t *)((u8 *)dev_priv->sarea->handle +
 				     init->sarea_priv_offset);
 
-	DRM_IOREMAP( dev_priv->cce_ring );
-	DRM_IOREMAP( dev_priv->ring_rptr );
-	DRM_IOREMAP( dev_priv->buffers );
+	if ( !dev_priv->is_pci ) {
+		DRM_IOREMAP( dev_priv->cce_ring );
+		DRM_IOREMAP( dev_priv->ring_rptr );
+		DRM_IOREMAP( dev_priv->buffers );
+	} else {
+		dev_priv->cce_ring->handle =
+			(void *)dev_priv->cce_ring->offset;
+		dev_priv->ring_rptr->handle =
+			(void *)dev_priv->ring_rptr->offset;
+		dev_priv->buffers->handle = (void *)dev_priv->buffers->offset;
+	}
+
+#if __REALLY_HAVE_AGP
+	if ( !dev_priv->is_pci )
+		dev_priv->cce_buffers_offset = dev->agp->base;
+	else
+#endif
+		dev_priv->cce_buffers_offset = dev->sg->handle;
 
 	dev_priv->ring.head = ((__volatile__ u32 *)
 			       dev_priv->ring_rptr->handle);
@@ -501,6 +544,20 @@ static int r128_do_init_cce( drm_device_t *dev, drm_r128_init_t *init )
 	R128_WRITE( R128_LAST_DISPATCH_REG,
 		    dev_priv->sarea_priv->last_dispatch );
 
+	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 );
+			dev->dev_private = NULL;
+			return -EINVAL;
+		}
+		R128_WRITE( R128_PCI_GART_PAGE,
+			    virt_to_bus( (void *)dev_priv->phys_pci_gart ) );
+	}
+
 	r128_cce_init_ring_buffer( dev );
 	r128_cce_load_microcode( dev_priv );
 	r128_do_engine_reset( dev );
@@ -513,9 +570,11 @@ int r128_do_cleanup_cce( drm_device_t *dev )
 	if ( dev->dev_private ) {
 		drm_r128_private_t *dev_priv = dev->dev_private;
 
-		DRM_IOREMAPFREE( dev_priv->cce_ring );
-		DRM_IOREMAPFREE( dev_priv->ring_rptr );
-		DRM_IOREMAPFREE( dev_priv->buffers );
+		if ( !dev_priv->is_pci ) {
+			DRM_IOREMAPFREE( dev_priv->cce_ring );
+			DRM_IOREMAPFREE( dev_priv->ring_rptr );
+			DRM_IOREMAPFREE( dev_priv->buffers );
+		}
 
 		DRM(free)( dev->dev_private, sizeof(drm_r128_private_t),
 			   DRM_MEM_DRIVER );
@@ -532,6 +591,8 @@ int r128_cce_init( struct inode *inode, struct file *filp,
         drm_device_t *dev = priv->dev;
 	drm_r128_init_t init;
 
+	DRM_DEBUG( "%s\n", __FUNCTION__ );
+
 	if ( copy_from_user( &init, (drm_r128_init_t *)arg, sizeof(init) ) )
 		return -EFAULT;