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@@ -12,12 +12,26 @@
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/bootmem.h>
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+#include <linux/seq_file.h>
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+#include <linux/proc_fs.h>
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#include <asm/system.h>
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#include <asm/paca.h>
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#include <asm/iSeries/ItLpQueue.h>
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#include <asm/iSeries/HvLpEvent.h>
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#include <asm/iSeries/HvCallEvent.h>
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+static char *event_types[9] = {
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+ "Hypervisor\t\t",
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+ "Machine Facilities\t",
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+ "Session Manager\t",
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+ "SPD I/O\t\t",
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+ "Virtual Bus\t\t",
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+ "PCI I/O\t\t",
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+ "RIO I/O\t\t",
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+ "Virtual Lan\t\t",
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+ "Virtual I/O\t\t"
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+};
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+
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static __inline__ int set_inUse(void)
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{
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int t;
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@@ -208,3 +222,48 @@ void setup_hvlpevent_queue(void)
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(LpEventStackSize - LpEventMaxSize);
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xItLpQueue.xIndex = 0;
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}
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+
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+static int proc_lpevents_show(struct seq_file *m, void *v)
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+{
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+ unsigned int i;
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+
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+ seq_printf(m, "LpEventQueue 0\n");
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+ seq_printf(m, " events processed:\t%lu\n",
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+ (unsigned long)xItLpQueue.xLpIntCount);
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+
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+ for (i = 0; i < 9; ++i)
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+ seq_printf(m, " %s %10lu\n", event_types[i],
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+ (unsigned long)xItLpQueue.xLpIntCountByType[i]);
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+
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+ seq_printf(m, "\n events processed by processor:\n");
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+
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+ for_each_online_cpu(i)
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+ seq_printf(m, " CPU%02d %10u\n", i, paca[i].lpevent_count);
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+
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+ return 0;
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+}
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+
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+static int proc_lpevents_open(struct inode *inode, struct file *file)
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+{
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+ return single_open(file, proc_lpevents_show, NULL);
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+}
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+
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+static struct file_operations proc_lpevents_operations = {
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+ .open = proc_lpevents_open,
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+ .read = seq_read,
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+ .llseek = seq_lseek,
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+ .release = single_release,
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+};
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+
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+static int __init proc_lpevents_init(void)
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+{
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+ struct proc_dir_entry *e;
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+
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+ e = create_proc_entry("iSeries/lpevents", S_IFREG|S_IRUGO, NULL);
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+ if (e)
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+ e->proc_fops = &proc_lpevents_operations;
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+
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+ return 0;
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+}
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+__initcall(proc_lpevents_init);
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+
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