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Commit 85c51c51 authored by Ralf Baechle's avatar Ralf Baechle
Browse files

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



Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 6d18b624

arch/mips/math-emu/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -9,3 +9,5 @@ obj-y := cp1emu.o ieee754m.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \ 
	   sp_div.o sp_mul.o sp_sub.o sp_add.o sp_fdp.o sp_cmp.o sp_logb.o \

	   sp_scalb.o sp_simple.o sp_tint.o sp_fint.o sp_tlong.o sp_flong.o \

	   dp_sqrt.o sp_sqrt.o kernel_linkage.o dsemul.o



obj-$(CONFIG_DEBUG_FS) += me-debugfs.o

arch/mips/math-emu/cp1emu.c

+1 −56
Original line number Diff line number Diff line
@@ -35,6 +35,7 @@ 
 */

#include <linux/sched.h>

#include <linux/debugfs.h>

#include <linux/percpu-defs.h>

#include <linux/perf_event.h>



#include <asm/branch.h>
@@ -66,12 +67,6 @@ static int fpux_emu(struct pt_regs *, 
	struct mips_fpu_struct *, mips_instruction, void *__user *);

#endif



/* Further private data for which no space exists in mips_fpu_struct */



#ifdef CONFIG_DEBUG_FS

DEFINE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats);

#endif



/* Control registers */



#define FPCREG_RID	0	/* $0  = revision id */
@@ -2158,53 +2153,3 @@ int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx, 


	return sig;

}
 


#ifdef CONFIG_DEBUG_FS



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);

#endif

arch/mips/math-emu/me-debugfs.c

0 → 100644
+59 −0
Original line number Diff line number Diff line 
#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);