1 files changed, 35 insertions, 6 deletions

diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 026a37a94fc9..ea5099c9709c 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -1,7 +1,5 @@
 /*
- *  arch/s390/kernel/irq.c
- *
- *    Copyright IBM Corp. 2004,2007
+ *    Copyright IBM Corp. 2004,2010
  *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
  *               Thomas Spatzier (tspat@de.ibm.com)
  *
@@ -17,12 +15,42 @@
 #include <linux/proc_fs.h>
 #include <linux/profile.h>
 
+struct irq_class {
+        char *name;
+        char *desc;
+};
+
+static const struct irq_class intrclass_names[] = {
+        {.name = "EXT" },
+        {.name = "I/O" },
+        {.name = "CLK", .desc = "[EXT] Clock Comparator" },
+        {.name = "IPI", .desc = "[EXT] Signal Processor" },
+        {.name = "TMR", .desc = "[EXT] CPU Timer" },
+        {.name = "TAL", .desc = "[EXT] Timing Alert" },
+        {.name = "PFL", .desc = "[EXT] Pseudo Page Fault" },
+        {.name = "DSD", .desc = "[EXT] DASD Diag" },
+        {.name = "VRT", .desc = "[EXT] Virtio" },
+        {.name = "SCP", .desc = "[EXT] Service Call" },
+        {.name = "IUC", .desc = "[EXT] IUCV" },
+        {.name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt" },
+        {.name = "QDI", .desc = "[I/O] QDIO Interrupt" },
+        {.name = "DAS", .desc = "[I/O] DASD" },
+        {.name = "C15", .desc = "[I/O] 3215" },
+        {.name = "C70", .desc = "[I/O] 3270" },
+        {.name = "TAP", .desc = "[I/O] Tape" },
+        {.name = "VMR", .desc = "[I/O] Unit Record Devices" },
+        {.name = "LCS", .desc = "[I/O] LCS" },
+        {.name = "CLW", .desc = "[I/O] CLAW" },
+        {.name = "CTC", .desc = "[I/O] CTC" },
+        {.name = "APB", .desc = "[I/O] AP Bus" },
+        {.name = "NMI", .desc = "[NMI] Machine Check" },
+};
+
 /*
  * show_interrupts is needed by /proc/interrupts.
  */
 int show_interrupts(struct seq_file *p, void *v)
 {
-        static const char *intrclass_names[] = { "EXT", "I/O", };
         int i = *(loff_t *) v, j;
 
         get_online_cpus();
@@ -34,15 +62,16 @@ int show_interrupts(struct seq_file *p, void *v)
         }
 
         if (i < NR_IRQS) {
-                seq_printf(p, "%s: ", intrclass_names[i]);
+                seq_printf(p, "%s: ", intrclass_names[i].name);
 #ifndef CONFIG_SMP
                 seq_printf(p, "%10u ", kstat_irqs(i));
 #else
                 for_each_online_cpu(j)
                         seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
 #endif
+                if (intrclass_names[i].desc)
+                        seq_printf(p, "  %s", intrclass_names[i].desc);
                 seq_putc(p, '\n');
-
         }
         put_online_cpus();
         return 0;