[SPARC64]: Kill sun4v virtual device layer.

Replace with a simple IRQ translater in the PROM
device tree builder.

Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 23 insertions, 97 deletions

diff --git a/arch/sparc64/kernel/devices.c b/arch/sparc64/kernel/devices.c
index 389301c95cb2..26adb64ddb34 100644
--- a/arch/sparc64/kernel/devices.c
+++ b/arch/sparc64/kernel/devices.c
@@ -21,8 +21,6 @@
 #include <asm/spitfire.h>
 #include <asm/timer.h>
 #include <asm/cpudata.h>
-#include <asm/vdev.h>
-#include <asm/irq.h>
 
 /* Used to synchronize acceses to NatSemi SUPER I/O chip configure
  * operations in asm/ns87303.h
@@ -32,100 +30,6 @@ DEFINE_SPINLOCK(ns87303_lock);
 extern void cpu_probe(void);
 extern void central_probe(void);
 
-u32 sun4v_vdev_devhandle;
-struct device_node *sun4v_vdev_root;
-
-struct vdev_intmap {
-        unsigned int phys;
-        unsigned int irq;
-        unsigned int cnode;
-        unsigned int cinterrupt;
-};
-
-struct vdev_intmask {
-        unsigned int phys;
-        unsigned int interrupt;
-        unsigned int __unused;
-};
-
-static struct vdev_intmap *vdev_intmap;
-static int vdev_num_intmap;
-static struct vdev_intmask *vdev_intmask;
-
-static void __init sun4v_virtual_device_probe(void)
-{
-        struct linux_prom64_registers *regs;
-        struct property *prop;
-        struct device_node *dp;
-        int sz;
-
-        if (tlb_type != hypervisor)
-                return;
-
-        dp = of_find_node_by_name(NULL, "virtual-devices");
-        if (!dp) {
-                prom_printf("SUN4V: Fatal error, no virtual-devices node.\n");
-                prom_halt();
-        }
-
-        sun4v_vdev_root = dp;
-
-        prop = of_find_property(dp, "reg", NULL);
-        regs = prop->value;
-        sun4v_vdev_devhandle = (regs[0].phys_addr >> 32UL) & 0x0fffffff;
-
-        prop = of_find_property(dp, "interrupt-map", &sz);
-        vdev_intmap = prop->value;
-        vdev_num_intmap = sz / sizeof(struct vdev_intmap);
-
-        prop = of_find_property(dp, "interrupt-map-mask", NULL);
-        vdev_intmask = prop->value;
-
-        printk("%s: Virtual Device Bus devhandle[%x]\n",
-               dp->full_name, sun4v_vdev_devhandle);
-}
-
-unsigned int sun4v_vdev_device_interrupt(struct device_node *dev_node)
-{
-        struct property *prop;
-        unsigned int irq, reg;
-        int i;
-
-        prop = of_find_property(dev_node, "interrupts", NULL);
-        if (!prop) {
-                printk("VDEV: Cannot get \"interrupts\" "
-                       "property for OBP node %s\n",
-                       dev_node->full_name);
-                return 0;
-        }
-        irq = *(unsigned int *) prop->value;
-
-        prop = of_find_property(dev_node, "reg", NULL);
-        if (!prop) {
-                printk("VDEV: Cannot get \"reg\" "
-                       "property for OBP node %s\n",
-                       dev_node->full_name);
-                return 0;
-        }
-        reg = *(unsigned int *) prop->value;
-
-        for (i = 0; i < vdev_num_intmap; i++) {
-                if (vdev_intmap[i].phys == (reg & vdev_intmask->phys) &&
-                    vdev_intmap[i].irq == (irq & vdev_intmask->interrupt)) {
-                        irq = vdev_intmap[i].cinterrupt;
-                        break;
-                }
-        }
-
-        if (i == vdev_num_intmap) {
-                printk("VDEV: No matching interrupt map entry "
-                       "for OBP node %s\n", dev_node->full_name);
-                return 0;
-        }
-
-        return sun4v_build_irq(sun4v_vdev_devhandle, irq);
-}
-
 static const char *cpu_mid_prop(void)
 {
         if (tlb_type == spitfire)
@@ -290,7 +194,6 @@ void __init device_scan(void)
         }
 #endif
 
-        sun4v_virtual_device_probe();
         central_probe();
 
         cpu_probe();
diff --git a/arch/sparc64/kernel/prom.c b/arch/sparc64/kernel/prom.c
index 8a70c52c0447..fa484d4f241e 100644
--- a/arch/sparc64/kernel/prom.c
+++ b/arch/sparc64/kernel/prom.c
@@ -1008,6 +1008,27 @@ static struct irq_trans pci_irq_trans_table[] = {
 };
 #endif
 
+static unsigned int sun4v_vdev_irq_build(struct device_node *dp,
+                                         unsigned int devino,
+                                         void *_data)
+{
+        u32 devhandle = (u32) (unsigned long) _data;
+
+        return sun4v_build_irq(devhandle, devino);
+}
+
+static void sun4v_vdev_irq_trans_init(struct device_node *dp)
+{
+        struct linux_prom64_registers *regs;
+
+        dp->irq_trans = prom_early_alloc(sizeof(struct of_irq_controller));
+        dp->irq_trans->irq_build = sun4v_vdev_irq_build;
+
+        regs = of_get_property(dp, "reg", NULL);
+        dp->irq_trans->data = (void *) (unsigned long)
+                ((regs->phys_addr >> 32UL) & 0x0fffffff);
+}
+
 static void irq_trans_init(struct device_node *dp)
 {
         const char *model;
@@ -1034,6 +1055,8 @@ static void irq_trans_init(struct device_node *dp)
 #endif
         if (!strcmp(dp->name, "central"))
                 return central_irq_trans_init(dp->child);
+        if (!strcmp(dp->name, "virtual-devices"))
+                return sun4v_vdev_irq_trans_init(dp);
 }
 
 static int is_root_node(const struct device_node *dp)