[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>

diff --git a/arch/sparc64/kernel/devices.c b/arch/sparc64/kernel/devices.c
index 389301c..26adb64 100644 (file)
--- 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 8a70c52..fa484d4 100644 (file)
--- 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)

diff --git a/include/asm-sparc64/vdev.h b/include/asm-sparc64/vdev.h
deleted file mode 100644 (file)
index 25637c5..0000000
--- a/include/asm-sparc64/vdev.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/* vdev.h: SUN4V virtual device interfaces and defines.
- *
- * Copyright (C) 2006 David S. Miller <davem@davemloft.net>
- */
-
-#ifndef _SPARC64_VDEV_H
-#define _SPARC64_VDEV_H
-
-#include <linux/types.h>
-#include <asm/prom.h>
-
-extern u32 sun4v_vdev_devhandle;
-extern struct device_node *sun4v_vdev_root;
-
-extern unsigned int sun4v_vdev_device_interrupt(struct device_node *dev_node);
-
-#endif /* !(_SPARC64_VDEV_H) */