---

yaml
---
r: 112996
b: refs/heads/master
c: e003934
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 334ae614772b1147435dce9be3911f9040dff0d9
+refs/heads/master: e003934876e75f96f1445565d8c9084c07943253

trunk/arch/sparc/include/asm/io-unit.h

@@ -59,4 +59,6 @@ extern __u32 iounit_map_dma_init(struct sbus_bus *, int);
 #define iounit_map_dma_finish(sbus, addr, len) mmu_release_scsi_one(addr, len, sbus)
 extern __u32 iounit_map_dma_page(__u32, void *, struct sbus_bus *);
 
+extern void iounit_init(struct sbus_bus *sbus);
+
 #endif /* !(_SPARC_IO_UNIT_H) */

trunk/arch/sparc/include/asm/iommu_32.h

@@ -118,4 +118,6 @@ static inline void iommu_invalidate_page(struct iommu_regs *regs, unsigned long
 	regs->pageflush = (ba & PAGE_MASK);
 }
 
+extern void iommu_init(struct device_node *dp, struct sbus_bus *sbus);
+
 #endif /* !(_SPARC_IOMMU_H) */

trunk/arch/sparc/kernel/ioport.c

@@ -46,6 +46,8 @@
 #include <asm/page.h>
 #include <asm/pgalloc.h>
 #include <asm/dma.h>
+#include <asm/iommu.h>
+#include <asm/io-unit.h>
 
 #define mmu_inval_dma_area(p, l)	/* Anton pulled it out for 2.4.0-xx */
 
@@ -515,18 +517,11 @@ void __init sbus_setup_iommu(struct sbus_bus *sbus, struct device_node *dp)
 
 	if (sparc_cpu_model != sun4d &&
 	    parent != NULL &&
-	    !strcmp(parent->name, "iommu")) {
-		extern void iommu_init(int iommu_node, struct sbus_bus *sbus);
+	    !strcmp(parent->name, "iommu"))
+		iommu_init(parent, sbus);
 
-		iommu_init(parent->node, sbus);
-	}
-
-	if (sparc_cpu_model == sun4d) {
-		extern void iounit_init(int sbi_node, int iounit_node,
-					struct sbus_bus *sbus);
-
-		iounit_init(dp->node, parent->node, sbus);
-	}
+	if (sparc_cpu_model == sun4d)
+		iounit_init(sbus);
 #endif
 }
 

trunk/arch/sparc/mm/io-unit.c

@@ -34,13 +34,18 @@
 #define IOPERM        (IOUPTE_CACHE | IOUPTE_WRITE | IOUPTE_VALID)
 #define MKIOPTE(phys) __iopte((((phys)>>4) & IOUPTE_PAGE) | IOPERM)
 
-void __init
-iounit_init(int sbi_node, int io_node, struct sbus_bus *sbus)
+void __init iounit_init(struct sbus_bus *sbus)
 {
-	iopte_t *xpt, *xptend;
+	struct device_node *dp = sbus->ofdev.node;
 	struct iounit_struct *iounit;
-	struct linux_prom_registers iommu_promregs[PROMREG_MAX];
-	struct resource r;
+	iopte_t *xpt, *xptend;
+	struct of_device *op;
+
+	op = of_find_device_by_node(dp);
+	if (!op) {
+		prom_printf("SUN4D: Cannot find SBI of_device.\n");
+		prom_halt();
+	}
 
 	iounit = kzalloc(sizeof(struct iounit_struct), GFP_ATOMIC);
 	if (!iounit) {
@@ -55,18 +60,14 @@ iounit_init(int sbi_node, int io_node, struct sbus_bus *sbus)
 	iounit->rotor[1] = IOUNIT_BMAP2_START;
 	iounit->rotor[2] = IOUNIT_BMAPM_START;
 
-	xpt = NULL;
-	if(prom_getproperty(sbi_node, "reg", (void *) iommu_promregs,
-			    sizeof(iommu_promregs)) != -1) {
-		prom_apply_generic_ranges(io_node, 0, iommu_promregs, 3);
-		memset(&r, 0, sizeof(r));
-		r.flags = iommu_promregs[2].which_io;
-		r.start = iommu_promregs[2].phys_addr;
-		xpt = (iopte_t *) sbus_ioremap(&r, 0, PAGE_SIZE * 16, "XPT");
+	xpt = of_ioremap(&op->resource[2], 0, PAGE_SIZE * 16, "XPT");
+	if (!xpt) {
+		prom_printf("SUN4D: Cannot map External Page Table.");
+		prom_halt();
 	}
-	if(!xpt) panic("Cannot map External Page Table.");
 
 	sbus->ofdev.dev.archdata.iommu = iounit;
+	op->dev.archdata.iommu = iounit;
 	iounit->page_table = xpt;
 	spin_lock_init(&iounit->lock);
 

trunk/arch/sparc/mm/iommu.c

@@ -55,30 +55,34 @@ static pgprot_t dvma_prot;		/* Consistent mapping pte flags */
 #define IOPERM        (IOPTE_CACHE | IOPTE_WRITE | IOPTE_VALID)
 #define MKIOPTE(pfn, perm) (((((pfn)<<8) & IOPTE_PAGE) | (perm)) & ~IOPTE_WAZ)
 
-void __init
-iommu_init(int iommund, struct sbus_bus *sbus)
+void __init iommu_init(struct device_node *parent, struct sbus_bus *sbus)
 {
-	unsigned int impl, vers;
-	unsigned long tmp;
+	struct of_device *parent_op, *op;
 	struct iommu_struct *iommu;
-	struct linux_prom_registers iommu_promregs[PROMREG_MAX];
-	struct resource r;
+	unsigned int impl, vers;
 	unsigned long *bitmap;
+	unsigned long tmp;
+
+	parent_op = of_find_device_by_node(parent);
+	if (!parent_op) {
+		prom_printf("Unable to find IOMMU of_device\n");
+		prom_halt();
+	}
+
+	op = of_find_device_by_node(sbus->ofdev.node);
+	if (!op) {
+		prom_printf("Unable to find SBUS of_device\n");
+		prom_halt();
+	}
 
 	iommu = kmalloc(sizeof(struct iommu_struct), GFP_ATOMIC);
 	if (!iommu) {
 		prom_printf("Unable to allocate iommu structure\n");
 		prom_halt();
 	}
-	iommu->regs = NULL;
-	if (prom_getproperty(iommund, "reg", (void *) iommu_promregs,
-			 sizeof(iommu_promregs)) != -1) {
-		memset(&r, 0, sizeof(r));
-		r.flags = iommu_promregs[0].which_io;
-		r.start = iommu_promregs[0].phys_addr;
-		iommu->regs = (struct iommu_regs *)
-			sbus_ioremap(&r, 0, PAGE_SIZE * 3, "iommu_regs");
-	}
+
+	iommu->regs = of_ioremap(&parent_op->resource[0], 0, PAGE_SIZE * 3,
+				 "iommu_regs");
 	if (!iommu->regs) {
 		prom_printf("Cannot map IOMMU registers\n");
 		prom_halt();
@@ -133,6 +137,7 @@ iommu_init(int iommund, struct sbus_bus *sbus)
 	    (int)(IOMMU_NPTES*sizeof(iopte_t)), (int)IOMMU_NPTES);
 
 	sbus->ofdev.dev.archdata.iommu = iommu;
+	op->dev.archdata.iommu = iommu;
 }
 
 /* This begs to be btfixup-ed by srmmu. */