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-rw-r--r--arch/ppc64/kernel/XmPciLpEvent.c183
1 files changed, 0 insertions, 183 deletions
diff --git a/arch/ppc64/kernel/XmPciLpEvent.c b/arch/ppc64/kernel/XmPciLpEvent.c
deleted file mode 100644
index 3db530744831..000000000000
--- a/arch/ppc64/kernel/XmPciLpEvent.c
+++ /dev/null
@@ -1,183 +0,0 @@
1/*
2 * File XmPciLpEvent.c created by Wayne Holm on Mon Jan 15 2001.
3 *
4 * This module handles PCI interrupt events sent by the iSeries Hypervisor.
5 */
6#include <linux/config.h>
7#include <linux/pci.h>
8#include <linux/init.h>
9#include <linux/threads.h>
10#include <linux/smp.h>
11#include <linux/param.h>
12#include <linux/string.h>
13#include <linux/bootmem.h>
14#include <linux/ide.h>
15
16#include <asm/iSeries/HvTypes.h>
17#include <asm/iSeries/HvLpEvent.h>
18#include <asm/iSeries/HvCallPci.h>
19#include <asm/iSeries/iSeries_irq.h>
20#include <asm/ppcdebug.h>
21
22static long Pci_Interrupt_Count;
23static long Pci_Event_Count;
24
25enum XmPciLpEvent_Subtype {
26 XmPciLpEvent_BusCreated = 0, // PHB has been created
27 XmPciLpEvent_BusError = 1, // PHB has failed
28 XmPciLpEvent_BusFailed = 2, // Msg to Secondary, Primary failed bus
29 XmPciLpEvent_NodeFailed = 4, // Multi-adapter bridge has failed
30 XmPciLpEvent_NodeRecovered = 5, // Multi-adapter bridge has recovered
31 XmPciLpEvent_BusRecovered = 12, // PHB has been recovered
32 XmPciLpEvent_UnQuiesceBus = 18, // Secondary bus unqiescing
33 XmPciLpEvent_BridgeError = 21, // Bridge Error
34 XmPciLpEvent_SlotInterrupt = 22 // Slot interrupt
35};
36
37struct XmPciLpEvent_BusInterrupt {
38 HvBusNumber busNumber;
39 HvSubBusNumber subBusNumber;
40};
41
42struct XmPciLpEvent_NodeInterrupt {
43 HvBusNumber busNumber;
44 HvSubBusNumber subBusNumber;
45 HvAgentId deviceId;
46};
47
48struct XmPciLpEvent {
49 struct HvLpEvent hvLpEvent;
50
51 union {
52 u64 alignData; // Align on an 8-byte boundary
53
54 struct {
55 u32 fisr;
56 HvBusNumber busNumber;
57 HvSubBusNumber subBusNumber;
58 HvAgentId deviceId;
59 } slotInterrupt;
60
61 struct XmPciLpEvent_BusInterrupt busFailed;
62 struct XmPciLpEvent_BusInterrupt busRecovered;
63 struct XmPciLpEvent_BusInterrupt busCreated;
64
65 struct XmPciLpEvent_NodeInterrupt nodeFailed;
66 struct XmPciLpEvent_NodeInterrupt nodeRecovered;
67
68 } eventData;
69
70};
71
72static void intReceived(struct XmPciLpEvent *eventParm,
73 struct pt_regs *regsParm)
74{
75 int irq;
76
77 ++Pci_Interrupt_Count;
78#if 0
79 PPCDBG(PPCDBG_BUSWALK, "PCI: XmPciLpEvent.c: intReceived\n");
80#endif
81
82 switch (eventParm->hvLpEvent.xSubtype) {
83 case XmPciLpEvent_SlotInterrupt:
84 irq = eventParm->hvLpEvent.xCorrelationToken;
85 /* Dispatch the interrupt handlers for this irq */
86 ppc_irq_dispatch_handler(regsParm, irq);
87 HvCallPci_eoi(eventParm->eventData.slotInterrupt.busNumber,
88 eventParm->eventData.slotInterrupt.subBusNumber,
89 eventParm->eventData.slotInterrupt.deviceId);
90 break;
91 /* Ignore error recovery events for now */
92 case XmPciLpEvent_BusCreated:
93 printk(KERN_INFO "XmPciLpEvent.c: system bus %d created\n",
94 eventParm->eventData.busCreated.busNumber);
95 break;
96 case XmPciLpEvent_BusError:
97 case XmPciLpEvent_BusFailed:
98 printk(KERN_INFO "XmPciLpEvent.c: system bus %d failed\n",
99 eventParm->eventData.busFailed.busNumber);
100 break;
101 case XmPciLpEvent_BusRecovered:
102 case XmPciLpEvent_UnQuiesceBus:
103 printk(KERN_INFO "XmPciLpEvent.c: system bus %d recovered\n",
104 eventParm->eventData.busRecovered.busNumber);
105 break;
106 case XmPciLpEvent_NodeFailed:
107 case XmPciLpEvent_BridgeError:
108 printk(KERN_INFO
109 "XmPciLpEvent.c: multi-adapter bridge %d/%d/%d failed\n",
110 eventParm->eventData.nodeFailed.busNumber,
111 eventParm->eventData.nodeFailed.subBusNumber,
112 eventParm->eventData.nodeFailed.deviceId);
113 break;
114 case XmPciLpEvent_NodeRecovered:
115 printk(KERN_INFO
116 "XmPciLpEvent.c: multi-adapter bridge %d/%d/%d recovered\n",
117 eventParm->eventData.nodeRecovered.busNumber,
118 eventParm->eventData.nodeRecovered.subBusNumber,
119 eventParm->eventData.nodeRecovered.deviceId);
120 break;
121 default:
122 printk(KERN_ERR
123 "XmPciLpEvent.c: unrecognized event subtype 0x%x\n",
124 eventParm->hvLpEvent.xSubtype);
125 break;
126 }
127}
128
129static void XmPciLpEvent_handler(struct HvLpEvent *eventParm,
130 struct pt_regs *regsParm)
131{
132#ifdef CONFIG_PCI
133#if 0
134 PPCDBG(PPCDBG_BUSWALK, "XmPciLpEvent_handler, type 0x%x\n",
135 eventParm->xType);
136#endif
137 ++Pci_Event_Count;
138
139 if (eventParm && (eventParm->xType == HvLpEvent_Type_PciIo)) {
140 switch (eventParm->xFlags.xFunction) {
141 case HvLpEvent_Function_Int:
142 intReceived((struct XmPciLpEvent *)eventParm, regsParm);
143 break;
144 case HvLpEvent_Function_Ack:
145 printk(KERN_ERR
146 "XmPciLpEvent.c: unexpected ack received\n");
147 break;
148 default:
149 printk(KERN_ERR
150 "XmPciLpEvent.c: unexpected event function %d\n",
151 (int)eventParm->xFlags.xFunction);
152 break;
153 }
154 } else if (eventParm)
155 printk(KERN_ERR
156 "XmPciLpEvent.c: Unrecognized PCI event type 0x%x\n",
157 (int)eventParm->xType);
158 else
159 printk(KERN_ERR "XmPciLpEvent.c: NULL event received\n");
160#endif
161}
162
163/* This should be called sometime prior to buswalk (init_IRQ would be good) */
164int XmPciLpEvent_init()
165{
166 int xRc;
167
168 PPCDBG(PPCDBG_BUSWALK,
169 "XmPciLpEvent_init, Register Event type 0x%04X\n",
170 HvLpEvent_Type_PciIo);
171
172 xRc = HvLpEvent_registerHandler(HvLpEvent_Type_PciIo,
173 &XmPciLpEvent_handler);
174 if (xRc == 0) {
175 xRc = HvLpEvent_openPath(HvLpEvent_Type_PciIo, 0);
176 if (xRc != 0)
177 printk(KERN_ERR "XmPciLpEvent.c: open event path "
178 "failed with rc 0x%x\n", xRc);
179 } else
180 printk(KERN_ERR "XmPciLpEvent.c: register handler "
181 "failed with rc 0x%x\n", xRc);
182 return xRc;
183}
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