diff options
Diffstat (limited to 'arch/mips/math-emu/cp1emu.c')
-rw-r--r-- | arch/mips/math-emu/cp1emu.c | 57 |
1 files changed, 1 insertions, 56 deletions
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c index 3ef9d99a729e..c4b855e7b0e0 100644 --- a/arch/mips/math-emu/cp1emu.c +++ b/arch/mips/math-emu/cp1emu.c | |||
@@ -35,6 +35,7 @@ | |||
35 | */ | 35 | */ |
36 | #include <linux/sched.h> | 36 | #include <linux/sched.h> |
37 | #include <linux/debugfs.h> | 37 | #include <linux/debugfs.h> |
38 | #include <linux/percpu-defs.h> | ||
38 | #include <linux/perf_event.h> | 39 | #include <linux/perf_event.h> |
39 | 40 | ||
40 | #include <asm/branch.h> | 41 | #include <asm/branch.h> |
@@ -66,12 +67,6 @@ static int fpux_emu(struct pt_regs *, | |||
66 | struct mips_fpu_struct *, mips_instruction, void *__user *); | 67 | struct mips_fpu_struct *, mips_instruction, void *__user *); |
67 | #endif | 68 | #endif |
68 | 69 | ||
69 | /* Further private data for which no space exists in mips_fpu_struct */ | ||
70 | |||
71 | #ifdef CONFIG_DEBUG_FS | ||
72 | DEFINE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats); | ||
73 | #endif | ||
74 | |||
75 | /* Control registers */ | 70 | /* Control registers */ |
76 | 71 | ||
77 | #define FPCREG_RID 0 /* $0 = revision id */ | 72 | #define FPCREG_RID 0 /* $0 = revision id */ |
@@ -2158,53 +2153,3 @@ int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx, | |||
2158 | 2153 | ||
2159 | return sig; | 2154 | return sig; |
2160 | } | 2155 | } |
2161 | |||
2162 | #ifdef CONFIG_DEBUG_FS | ||
2163 | |||
2164 | static int fpuemu_stat_get(void *data, u64 *val) | ||
2165 | { | ||
2166 | int cpu; | ||
2167 | unsigned long sum = 0; | ||
2168 | for_each_online_cpu(cpu) { | ||
2169 | struct mips_fpu_emulator_stats *ps; | ||
2170 | local_t *pv; | ||
2171 | ps = &per_cpu(fpuemustats, cpu); | ||
2172 | pv = (void *)ps + (unsigned long)data; | ||
2173 | sum += local_read(pv); | ||
2174 | } | ||
2175 | *val = sum; | ||
2176 | return 0; | ||
2177 | } | ||
2178 | DEFINE_SIMPLE_ATTRIBUTE(fops_fpuemu_stat, fpuemu_stat_get, NULL, "%llu\n"); | ||
2179 | |||
2180 | extern struct dentry *mips_debugfs_dir; | ||
2181 | static int __init debugfs_fpuemu(void) | ||
2182 | { | ||
2183 | struct dentry *d, *dir; | ||
2184 | |||
2185 | if (!mips_debugfs_dir) | ||
2186 | return -ENODEV; | ||
2187 | dir = debugfs_create_dir("fpuemustats", mips_debugfs_dir); | ||
2188 | if (!dir) | ||
2189 | return -ENOMEM; | ||
2190 | |||
2191 | #define FPU_STAT_CREATE(M) \ | ||
2192 | do { \ | ||
2193 | d = debugfs_create_file(#M , S_IRUGO, dir, \ | ||
2194 | (void *)offsetof(struct mips_fpu_emulator_stats, M), \ | ||
2195 | &fops_fpuemu_stat); \ | ||
2196 | if (!d) \ | ||
2197 | return -ENOMEM; \ | ||
2198 | } while (0) | ||
2199 | |||
2200 | FPU_STAT_CREATE(emulated); | ||
2201 | FPU_STAT_CREATE(loads); | ||
2202 | FPU_STAT_CREATE(stores); | ||
2203 | FPU_STAT_CREATE(cp1ops); | ||
2204 | FPU_STAT_CREATE(cp1xops); | ||
2205 | FPU_STAT_CREATE(errors); | ||
2206 | |||
2207 | return 0; | ||
2208 | } | ||
2209 | __initcall(debugfs_fpuemu); | ||
2210 | #endif | ||