X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fppc64%2Fkernel%2FiSeries_iommu.c;h=4e1a47c8a8026a0a132d54c414848db56030e948;hb=6a77f38946aaee1cd85eeec6cf4229b204c15071;hp=c09ea2aaa1899325c420b39f286fe2218561765a;hpb=87fc8d1bb10cd459024a742c6a10961fefcef18f;p=linux-2.6.git

diff --git a/arch/ppc64/kernel/iSeries_iommu.c b/arch/ppc64/kernel/iSeries_iommu.c
index c09ea2aaa..4e1a47c8a 100644
--- a/arch/ppc64/kernel/iSeries_iommu.c
+++ b/arch/ppc64/kernel/iSeries_iommu.c
@@ -25,30 +25,14 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
-#include <linux/config.h>
-#include <linux/init.h>
 #include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/spinlock.h>
-#include <linux/string.h>
-#include <linux/pci.h>
 #include <linux/dma-mapping.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/rtas.h>
-#include <asm/ppcdebug.h>
+#include <linux/list.h>
 
-#include <asm/iSeries/HvCallXm.h>
-#include <asm/iSeries/LparData.h>
 #include <asm/iommu.h>
-#include <asm/pci-bridge.h>
-#include <asm/iSeries/iSeries_pci.h>
-
 #include <asm/machdep.h>
-
-#include "pci.h"
-
+#include <asm/iSeries/HvCallXm.h>
+#include <asm/iSeries/iSeries_pci.h>
 
 extern struct list_head iSeries_Global_Device_List;
 
@@ -76,12 +60,11 @@ static void tce_build_iSeries(struct iommu_table *tbl, long index, long npages,
 				tce.te_bits.tb_pciwr = 1;
 		}
 
-		rc = HvCallXm_setTce((u64)tbl->it_index,
-				     (u64)index,
-				     tce.te_word);
+		rc = HvCallXm_setTce((u64)tbl->it_index, (u64)index,
+				tce.te_word);
 		if (rc)
-			panic("PCI_DMA: HvCallXm_setTce failed, Rc: 0x%lx\n", rc);
-
+			panic("PCI_DMA: HvCallXm_setTce failed, Rc: 0x%lx\n",
+					rc);
 		index++;
 		uaddr += PAGE_SIZE;
 	}
@@ -90,20 +73,14 @@ static void tce_build_iSeries(struct iommu_table *tbl, long index, long npages,
 static void tce_free_iSeries(struct iommu_table *tbl, long index, long npages)
 {
 	u64 rc;
-	union tce_entry tce;
 
 	while (npages--) {
-		tce.te_word = 0;
-		rc = HvCallXm_setTce((u64)tbl->it_index,
-				     (u64)index,
-				     tce.te_word);
-
+		rc = HvCallXm_setTce((u64)tbl->it_index, (u64)index, 0);
 		if (rc)
-			panic("PCI_DMA: HvCallXm_setTce failed, Rc: 0x%lx\n", rc);
-
+			panic("PCI_DMA: HvCallXm_setTce failed, Rc: 0x%lx\n",
+					rc);
 		index++;
 	}
-
 }
 
 
@@ -115,17 +92,14 @@ static struct iommu_table *iommu_table_find(struct iommu_table * tbl)
 {
 	struct iSeries_Device_Node *dp;
 
-	for (dp =  (struct iSeries_Device_Node *)iSeries_Global_Device_List.next;
-	     dp != (struct iSeries_Device_Node *)&iSeries_Global_Device_List;
-	     dp =  (struct iSeries_Device_Node *)dp->Device_List.next)
-		if (dp->iommu_table                 != NULL &&
-		    dp->iommu_table->it_type        == TCE_PCI &&
-		    dp->iommu_table->it_offset      == tbl->it_offset &&
-		    dp->iommu_table->it_index       == tbl->it_index &&
-		    dp->iommu_table->it_size        == tbl->it_size)
+	list_for_each_entry(dp, &iSeries_Global_Device_List, Device_List) {
+		if ((dp->iommu_table != NULL) &&
+		    (dp->iommu_table->it_type == TCE_PCI) &&
+		    (dp->iommu_table->it_offset == tbl->it_offset) &&
+		    (dp->iommu_table->it_index == tbl->it_index) &&
+		    (dp->iommu_table->it_size == tbl->it_size))
 			return dp->iommu_table;
-
-
+	}
 	return NULL;
 }
 
@@ -143,15 +117,14 @@ static void iommu_table_getparms(struct iSeries_Device_Node* dn,
 {
 	struct iommu_table_cb *parms;
 
-	parms = (struct iommu_table_cb*)kmalloc(sizeof(*parms), GFP_KERNEL);
-
+	parms = kmalloc(sizeof(*parms), GFP_KERNEL);
 	if (parms == NULL)
 		panic("PCI_DMA: TCE Table Allocation failed.");
 
 	memset(parms, 0, sizeof(*parms));
 
-	parms->itc_busno   = ISERIES_BUS(dn);
-	parms->itc_slotno  = dn->LogicalSlot;
+	parms->itc_busno = ISERIES_BUS(dn);
+	parms->itc_slotno = dn->LogicalSlot;
 	parms->itc_virtbus = 0;
 
 	HvCallXm_getTceTableParms(ISERIES_HV_ADDR(parms));
@@ -159,41 +132,44 @@ static void iommu_table_getparms(struct iSeries_Device_Node* dn,
 	if (parms->itc_size == 0)
 		panic("PCI_DMA: parms->size is zero, parms is 0x%p", parms);
 
-	tbl->it_size        = parms->itc_size;
-	tbl->it_busno       = parms->itc_busno;
-	tbl->it_offset      = parms->itc_offset;
-	tbl->it_index       = parms->itc_index;
-	tbl->it_entrysize   = sizeof(union tce_entry);
-	tbl->it_blocksize   = 1;
-	tbl->it_type        = TCE_PCI;
+	/* itc_size is in pages worth of table, it_size is in # of entries */
+	tbl->it_size = (parms->itc_size * PAGE_SIZE) / sizeof(union tce_entry);
+	tbl->it_busno = parms->itc_busno;
+	tbl->it_offset = parms->itc_offset;
+	tbl->it_index = parms->itc_index;
+	tbl->it_blocksize = 1;
+	tbl->it_type = TCE_PCI;
 
 	kfree(parms);
 }
 
 
-void iommu_devnode_init(struct iSeries_Device_Node *dn) {
+void iommu_devnode_init_iSeries(struct iSeries_Device_Node *dn)
+{
 	struct iommu_table *tbl;
 
-	tbl = (struct iommu_table *)kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
+	tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
 
 	iommu_table_getparms(dn, tbl);
 
 	/* Look for existing tce table */
 	dn->iommu_table = iommu_table_find(tbl);
-
 	if (dn->iommu_table == NULL)
 		dn->iommu_table = iommu_init_table(tbl);
 	else
 		kfree(tbl);
-
-	return;
 }
 
+static void iommu_dev_setup_iSeries(struct pci_dev *dev) { }
+static void iommu_bus_setup_iSeries(struct pci_bus *bus) { }
 
-void tce_init_iSeries(void)
+void iommu_init_early_iSeries(void)
 {
 	ppc_md.tce_build = tce_build_iSeries;
 	ppc_md.tce_free  = tce_free_iSeries;
 
+	ppc_md.iommu_dev_setup = iommu_dev_setup_iSeries;
+	ppc_md.iommu_bus_setup = iommu_bus_setup_iSeries;
+
 	pci_iommu_init();
 }