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authorDavid S. Miller <davem@sunset.davemloft.net>2006-06-30 03:07:40 -0400
committerDavid S. Miller <davem@sunset.davemloft.net>2006-06-30 17:13:41 -0400
commit6e990b50ed0b45d506ff6809034508d3e210497d (patch)
tree167fd890356b2c55b9f60c4940a8325d1daa42b5 /arch/sparc64/kernel/devices.c
parent93872ba21d1087cde1d5f9603f3265c1c54d471c (diff)
[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>
Diffstat (limited to 'arch/sparc64/kernel/devices.c')
-rw-r--r--arch/sparc64/kernel/devices.c97
1 files changed, 0 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 @@
21#include <asm/spitfire.h> 21#include <asm/spitfire.h>
22#include <asm/timer.h> 22#include <asm/timer.h>
23#include <asm/cpudata.h> 23#include <asm/cpudata.h>
24#include <asm/vdev.h>
25#include <asm/irq.h>
26 24
27/* Used to synchronize acceses to NatSemi SUPER I/O chip configure 25/* Used to synchronize acceses to NatSemi SUPER I/O chip configure
28 * operations in asm/ns87303.h 26 * operations in asm/ns87303.h
@@ -32,100 +30,6 @@ DEFINE_SPINLOCK(ns87303_lock);
32extern void cpu_probe(void); 30extern void cpu_probe(void);
33extern void central_probe(void); 31extern void central_probe(void);
34 32
35u32 sun4v_vdev_devhandle;
36struct device_node *sun4v_vdev_root;
37
38struct vdev_intmap {
39 unsigned int phys;
40 unsigned int irq;
41 unsigned int cnode;
42 unsigned int cinterrupt;
43};
44
45struct vdev_intmask {
46 unsigned int phys;
47 unsigned int interrupt;
48 unsigned int __unused;
49};
50
51static struct vdev_intmap *vdev_intmap;
52static int vdev_num_intmap;
53static struct vdev_intmask *vdev_intmask;
54
55static void __init sun4v_virtual_device_probe(void)
56{
57 struct linux_prom64_registers *regs;
58 struct property *prop;
59 struct device_node *dp;
60 int sz;
61
62 if (tlb_type != hypervisor)
63 return;
64
65 dp = of_find_node_by_name(NULL, "virtual-devices");
66 if (!dp) {
67 prom_printf("SUN4V: Fatal error, no virtual-devices node.\n");
68 prom_halt();
69 }
70
71 sun4v_vdev_root = dp;
72
73 prop = of_find_property(dp, "reg", NULL);
74 regs = prop->value;
75 sun4v_vdev_devhandle = (regs[0].phys_addr >> 32UL) & 0x0fffffff;
76
77 prop = of_find_property(dp, "interrupt-map", &sz);
78 vdev_intmap = prop->value;
79 vdev_num_intmap = sz / sizeof(struct vdev_intmap);
80
81 prop = of_find_property(dp, "interrupt-map-mask", NULL);
82 vdev_intmask = prop->value;
83
84 printk("%s: Virtual Device Bus devhandle[%x]\n",
85 dp->full_name, sun4v_vdev_devhandle);
86}
87
88unsigned int sun4v_vdev_device_interrupt(struct device_node *dev_node)
89{
90 struct property *prop;
91 unsigned int irq, reg;
92 int i;
93
94 prop = of_find_property(dev_node, "interrupts", NULL);
95 if (!prop) {
96 printk("VDEV: Cannot get \"interrupts\" "
97 "property for OBP node %s\n",
98 dev_node->full_name);
99 return 0;
100 }
101 irq = *(unsigned int *) prop->value;
102
103 prop = of_find_property(dev_node, "reg", NULL);
104 if (!prop) {
105 printk("VDEV: Cannot get \"reg\" "
106 "property for OBP node %s\n",
107 dev_node->full_name);
108 return 0;
109 }
110 reg = *(unsigned int *) prop->value;
111
112 for (i = 0; i < vdev_num_intmap; i++) {
113 if (vdev_intmap[i].phys == (reg & vdev_intmask->phys) &&
114 vdev_intmap[i].irq == (irq & vdev_intmask->interrupt)) {
115 irq = vdev_intmap[i].cinterrupt;
116 break;
117 }
118 }
119
120 if (i == vdev_num_intmap) {
121 printk("VDEV: No matching interrupt map entry "
122 "for OBP node %s\n", dev_node->full_name);
123 return 0;
124 }
125
126 return sun4v_build_irq(sun4v_vdev_devhandle, irq);
127}
128
129static const char *cpu_mid_prop(void) 33static const char *cpu_mid_prop(void)
130{ 34{
131 if (tlb_type == spitfire) 35 if (tlb_type == spitfire)
@@ -290,7 +194,6 @@ void __init device_scan(void)
290 } 194 }
291#endif 195#endif
292 196
293 sun4v_virtual_device_probe();
294 central_probe(); 197 central_probe();
295 198
296 cpu_probe(); 199 cpu_probe();