Add functions for accessing dense and bwx memory for pci devices. These

routines are necessary to allow the use of certain types of hardware on
the alpha, particularly a Myrinet card.

Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>

1 files changed, 44 insertions, 1 deletions

diff --git a/sys/pci/pci_compat.c b/sys/pci/pci_compat.c
index ebec37a..c082318 100644
--- a/sys/pci/pci_compat.c
+++ b/sys/pci/pci_compat.c
@@ -23,7 +23,7 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * $Id: pci_compat.c,v 1.10 1998/09/06 22:41:42 tegge Exp $
+ * $Id: pci_compat.c,v 1.11 1998/09/15 08:21:09 gibbs Exp $
  *
  */
 
@@ -165,6 +165,49 @@ int pci_map_mem(pcici_t cfg, u_long reg, vm_offset_t* va, vm_offset_t* pa)
 	return (0);
 }
 
+int 
+pci_map_dense(pcici_t cfg, u_long reg, vm_offset_t* va, vm_offset_t* pa)
+{
+	vm_offset_t dense;
+	int retval = 0;
+
+	if(pci_map_mem(cfg, reg, va, pa)){
+#ifdef __alpha__
+		if(dense = pci_cvt_to_dense(*pa)){
+			*pa = dense;
+			*va = ALPHA_PHYS_TO_K0SEG(*pa);
+			return (1);
+		}
+#endif
+#ifdef __i386__
+		return(1);
+#endif
+	}
+	return (0);
+}
+
+int 
+pci_map_bwx(pcici_t cfg, u_long reg, vm_offset_t* va, vm_offset_t* pa)
+{
+	vm_offset_t bwx;
+	int retval = 0;
+
+	if(pci_map_mem(cfg, reg, va, pa)){
+#ifdef __alpha__
+		if(bwx = pci_cvt_to_bwx(*pa)){
+			*pa = bwx;
+			*va = ALPHA_PHYS_TO_K0SEG(*pa);
+			return (1);
+		}
+#endif
+#ifdef __i386__
+		return(1);
+#endif
+	}
+	return (0);
+}
+
+
 int
 pci_map_int(pcici_t cfg, pci_inthand_t *func, void *arg, unsigned *maskptr)
 {