MIPS: math-emu: Move all debug fs code to a separate file.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 59 insertions, 0 deletions

diff --git a/arch/mips/math-emu/me-debugfs.c b/arch/mips/math-emu/me-debugfs.c
new file mode 100644
index 000000000000..d895b38773df
--- /dev/null
+++ b/arch/mips/math-emu/me-debugfs.c
@@ -0,0 +1,59 @@
+#include <linux/cpumask.h>
+#include <linux/debugfs.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/percpu.h>
+#include <linux/types.h>
+#include <asm/fpu_emulator.h>
+#include <asm/local.h>
+
+DEFINE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats);
+
+static int fpuemu_stat_get(void *data, u64 *val)
+{
+        int cpu;
+        unsigned long sum = 0;
+
+        for_each_online_cpu(cpu) {
+                struct mips_fpu_emulator_stats *ps;
+                local_t *pv;
+
+                ps = &per_cpu(fpuemustats, cpu);
+                pv = (void *)ps + (unsigned long)data;
+                sum += local_read(pv);
+        }
+        *val = sum;
+        return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_fpuemu_stat, fpuemu_stat_get, NULL, "%llu\n");
+
+extern struct dentry *mips_debugfs_dir;
+static int __init debugfs_fpuemu(void)
+{
+        struct dentry *d, *dir;
+
+        if (!mips_debugfs_dir)
+                return -ENODEV;
+        dir = debugfs_create_dir("fpuemustats", mips_debugfs_dir);
+        if (!dir)
+                return -ENOMEM;
+
+#define FPU_STAT_CREATE(M)                                              \
+        do {                                                            \
+                d = debugfs_create_file(#M , S_IRUGO, dir,              \
+                        (void *)offsetof(struct mips_fpu_emulator_stats, M), \
+                        &fops_fpuemu_stat);                             \
+                if (!d)                                                 \
+                        return -ENOMEM;                                 \
+        } while (0)
+
+        FPU_STAT_CREATE(emulated);
+        FPU_STAT_CREATE(loads);
+        FPU_STAT_CREATE(stores);
+        FPU_STAT_CREATE(cp1ops);
+        FPU_STAT_CREATE(cp1xops);
+        FPU_STAT_CREATE(errors);
+
+        return 0;
+}
+__initcall(debugfs_fpuemu);