diff options
author | Ralf Baechle <ralf@linux-mips.org> | 2014-04-15 20:46:11 -0400 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2014-05-21 05:12:55 -0400 |
commit | 85c51c511d6373d4bc859458fd3f130015db31a5 (patch) | |
tree | c0b1076aba628760c3a9da5c46b818d2158634ad /arch/mips/math-emu | |
parent | 6d18b6246d2bfb9da2d342553e41565e14422089 (diff) |
MIPS: math-emu: Move all debug fs code to a separate file.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/math-emu')
-rw-r--r-- | arch/mips/math-emu/Makefile | 2 | ||||
-rw-r--r-- | arch/mips/math-emu/cp1emu.c | 57 | ||||
-rw-r--r-- | arch/mips/math-emu/me-debugfs.c | 59 |
3 files changed, 62 insertions, 56 deletions
diff --git a/arch/mips/math-emu/Makefile b/arch/mips/math-emu/Makefile index 121a848a3594..0803970dfc16 100644 --- a/arch/mips/math-emu/Makefile +++ b/arch/mips/math-emu/Makefile | |||
@@ -9,3 +9,5 @@ obj-y := cp1emu.o ieee754m.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \ | |||
9 | sp_div.o sp_mul.o sp_sub.o sp_add.o sp_fdp.o sp_cmp.o sp_logb.o \ | 9 | sp_div.o sp_mul.o sp_sub.o sp_add.o sp_fdp.o sp_cmp.o sp_logb.o \ |
10 | sp_scalb.o sp_simple.o sp_tint.o sp_fint.o sp_tlong.o sp_flong.o \ | 10 | sp_scalb.o sp_simple.o sp_tint.o sp_fint.o sp_tlong.o sp_flong.o \ |
11 | dp_sqrt.o sp_sqrt.o kernel_linkage.o dsemul.o | 11 | dp_sqrt.o sp_sqrt.o kernel_linkage.o dsemul.o |
12 | |||
13 | obj-$(CONFIG_DEBUG_FS) += me-debugfs.o | ||
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 | ||
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 @@ | |||
1 | #include <linux/cpumask.h> | ||
2 | #include <linux/debugfs.h> | ||
3 | #include <linux/fs.h> | ||
4 | #include <linux/init.h> | ||
5 | #include <linux/percpu.h> | ||
6 | #include <linux/types.h> | ||
7 | #include <asm/fpu_emulator.h> | ||
8 | #include <asm/local.h> | ||
9 | |||
10 | DEFINE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats); | ||
11 | |||
12 | static int fpuemu_stat_get(void *data, u64 *val) | ||
13 | { | ||
14 | int cpu; | ||
15 | unsigned long sum = 0; | ||
16 | |||
17 | for_each_online_cpu(cpu) { | ||
18 | struct mips_fpu_emulator_stats *ps; | ||
19 | local_t *pv; | ||
20 | |||
21 | ps = &per_cpu(fpuemustats, cpu); | ||
22 | pv = (void *)ps + (unsigned long)data; | ||
23 | sum += local_read(pv); | ||
24 | } | ||
25 | *val = sum; | ||
26 | return 0; | ||
27 | } | ||
28 | DEFINE_SIMPLE_ATTRIBUTE(fops_fpuemu_stat, fpuemu_stat_get, NULL, "%llu\n"); | ||
29 | |||
30 | extern struct dentry *mips_debugfs_dir; | ||
31 | static int __init debugfs_fpuemu(void) | ||
32 | { | ||
33 | struct dentry *d, *dir; | ||
34 | |||
35 | if (!mips_debugfs_dir) | ||
36 | return -ENODEV; | ||
37 | dir = debugfs_create_dir("fpuemustats", mips_debugfs_dir); | ||
38 | if (!dir) | ||
39 | return -ENOMEM; | ||
40 | |||
41 | #define FPU_STAT_CREATE(M) \ | ||
42 | do { \ | ||
43 | d = debugfs_create_file(#M , S_IRUGO, dir, \ | ||
44 | (void *)offsetof(struct mips_fpu_emulator_stats, M), \ | ||
45 | &fops_fpuemu_stat); \ | ||
46 | if (!d) \ | ||
47 | return -ENOMEM; \ | ||
48 | } while (0) | ||
49 | |||
50 | FPU_STAT_CREATE(emulated); | ||
51 | FPU_STAT_CREATE(loads); | ||
52 | FPU_STAT_CREATE(stores); | ||
53 | FPU_STAT_CREATE(cp1ops); | ||
54 | FPU_STAT_CREATE(cp1xops); | ||
55 | FPU_STAT_CREATE(errors); | ||
56 | |||
57 | return 0; | ||
58 | } | ||
59 | __initcall(debugfs_fpuemu); | ||