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68 lines
1.5 KiB
68 lines
1.5 KiB
#include <linux/cpumask.h> |
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#include <linux/debugfs.h> |
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#include <linux/fs.h> |
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#include <linux/init.h> |
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#include <linux/percpu.h> |
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#include <linux/types.h> |
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#include <asm/debug.h> |
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#include <asm/fpu_emulator.h> |
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#include <asm/local.h> |
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DEFINE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats); |
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static int fpuemu_stat_get(void *data, u64 *val) |
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{ |
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int cpu; |
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unsigned long sum = 0; |
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for_each_online_cpu(cpu) { |
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struct mips_fpu_emulator_stats *ps; |
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local_t *pv; |
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ps = &per_cpu(fpuemustats, cpu); |
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pv = (void *)ps + (unsigned long)data; |
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sum += local_read(pv); |
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} |
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*val = sum; |
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return 0; |
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} |
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DEFINE_SIMPLE_ATTRIBUTE(fops_fpuemu_stat, fpuemu_stat_get, NULL, "%llu\n"); |
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static int __init debugfs_fpuemu(void) |
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{ |
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struct dentry *d, *dir; |
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if (!mips_debugfs_dir) |
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return -ENODEV; |
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dir = debugfs_create_dir("fpuemustats", mips_debugfs_dir); |
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if (!dir) |
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return -ENOMEM; |
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#define FPU_EMU_STAT_OFFSET(m) \ |
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offsetof(struct mips_fpu_emulator_stats, m) |
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#define FPU_STAT_CREATE(m) \ |
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do { \ |
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d = debugfs_create_file(#m , S_IRUGO, dir, \ |
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(void *)FPU_EMU_STAT_OFFSET(m), \ |
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&fops_fpuemu_stat); \ |
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if (!d) \ |
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return -ENOMEM; \ |
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} while (0) |
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FPU_STAT_CREATE(emulated); |
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FPU_STAT_CREATE(loads); |
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FPU_STAT_CREATE(stores); |
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FPU_STAT_CREATE(cp1ops); |
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FPU_STAT_CREATE(cp1xops); |
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FPU_STAT_CREATE(errors); |
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FPU_STAT_CREATE(ieee754_inexact); |
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FPU_STAT_CREATE(ieee754_underflow); |
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FPU_STAT_CREATE(ieee754_overflow); |
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FPU_STAT_CREATE(ieee754_zerodiv); |
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FPU_STAT_CREATE(ieee754_invalidop); |
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FPU_STAT_CREATE(ds_emul); |
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return 0; |
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} |
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arch_initcall(debugfs_fpuemu);
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