---

yaml
---
r: 11441
b: refs/heads/master
c: 86a5cdd
h: refs/heads/master
i:
  11439: 0be9579
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 654810ec899ea5f2fc2138fca1793b603d481ff4
+refs/heads/master: 86a5cddbd9676b129cfa2ed7a1a11759d3b2b512

trunk/arch/ppc64/oprofile/common.c → trunk/arch/powerpc/oprofile/common.c

@@ -1,5 +1,9 @@
 /*
+ * PPC 64 oprofile support:
  * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
+ * PPC 32 oprofile support: (based on PPC 64 support)
+ * Copyright (C) Freescale Semiconductor, Inc 2004
+ *	Author: Andy Fleming
  *
  * Based on alpha version.
  *
@@ -10,12 +14,19 @@
  */
 
 #include <linux/oprofile.h>
+#ifndef __powerpc64__
+#include <linux/slab.h>
+#endif /* ! __powerpc64__ */
 #include <linux/init.h>
 #include <linux/smp.h>
 #include <linux/errno.h>
 #include <asm/ptrace.h>
 #include <asm/system.h>
+#ifdef __powerpc64__
 #include <asm/pmc.h>
+#else /* __powerpc64__ */
+#include <asm/perfmon.h>
+#endif /* __powerpc64__ */
 #include <asm/cputable.h>
 #include <asm/oprofile_impl.h>
 
@@ -24,66 +35,92 @@ static struct op_powerpc_model *model;
 static struct op_counter_config ctr[OP_MAX_COUNTER];
 static struct op_system_config sys;
 
+#ifndef __powerpc64__
+static char *cpu_type;
+#endif /* ! __powerpc64__ */
+
 static void op_handle_interrupt(struct pt_regs *regs)
 {
 	model->handle_interrupt(regs, ctr);
 }
 
-static int op_ppc64_setup(void)
+static int op_powerpc_setup(void)
 {
+#ifdef __powerpc64__
 	int err;
 
 	/* Grab the hardware */
 	err = reserve_pmc_hardware(op_handle_interrupt);
 	if (err)
 		return err;
+#else /* __powerpc64__ */
+	/* Install our interrupt handler into the existing hook.  */
+	if (request_perfmon_irq(&op_handle_interrupt))
+		return -EBUSY;
+	mb();
+#endif /* __powerpc64__ */
 
 	/* Pre-compute the values to stuff in the hardware registers.  */
 	model->reg_setup(ctr, &sys, model->num_counters);
 
 	/* Configure the registers on all cpus.  */
+#ifdef __powerpc64__
 	on_each_cpu(model->cpu_setup, NULL, 0, 1);
+#else /* __powerpc64__ */
+#if 0
+	/* FIXME: Make multi-cpu work */
+	on_each_cpu(model->reg_setup, NULL, 0, 1);
+#endif
+#endif /* __powerpc64__ */
 
 	return 0;
 }
 
-static void op_ppc64_shutdown(void)
+static void op_powerpc_shutdown(void)
 {
+#ifdef __powerpc64__
 	release_pmc_hardware();
+#else /* __powerpc64__ */
+	mb();
+	/* Remove our interrupt handler. We may be removing this module. */
+	free_perfmon_irq();
+#endif /* __powerpc64__ */
 }
 
-static void op_ppc64_cpu_start(void *dummy)
+static void op_powerpc_cpu_start(void *dummy)
 {
 	model->start(ctr);
 }
 
-static int op_ppc64_start(void)
+static int op_powerpc_start(void)
 {
-	on_each_cpu(op_ppc64_cpu_start, NULL, 0, 1);
+	on_each_cpu(op_powerpc_cpu_start, NULL, 0, 1);
 	return 0;
 }
 
-static inline void op_ppc64_cpu_stop(void *dummy)
+static inline void op_powerpc_cpu_stop(void *dummy)
 {
 	model->stop();
 }
 
-static void op_ppc64_stop(void)
+static void op_powerpc_stop(void)
 {
-	on_each_cpu(op_ppc64_cpu_stop, NULL, 0, 1);
+	on_each_cpu(op_powerpc_cpu_stop, NULL, 0, 1);
 }
 
-static int op_ppc64_create_files(struct super_block *sb, struct dentry *root)
+static int op_powerpc_create_files(struct super_block *sb, struct dentry *root)
 {
 	int i;
 
+#ifdef __powerpc64__
 	/*
 	 * There is one mmcr0, mmcr1 and mmcra for setting the events for
 	 * all of the counters.
 	 */
 	oprofilefs_create_ulong(sb, root, "mmcr0", &sys.mmcr0);
 	oprofilefs_create_ulong(sb, root, "mmcr1", &sys.mmcr1);
 	oprofilefs_create_ulong(sb, root, "mmcra", &sys.mmcra);
+#endif /* __powerpc64__ */
 
 	for (i = 0; i < model->num_counters; ++i) {
 		struct dentry *dir;
@@ -95,44 +132,72 @@ static int op_ppc64_create_files(struct super_block *sb, struct dentry *root)
 		oprofilefs_create_ulong(sb, dir, "enabled", &ctr[i].enabled);
 		oprofilefs_create_ulong(sb, dir, "event", &ctr[i].event);
 		oprofilefs_create_ulong(sb, dir, "count", &ctr[i].count);
+#ifdef __powerpc64__
 		/*
 		 * We dont support per counter user/kernel selection, but
 		 * we leave the entries because userspace expects them
 		 */
+#endif /* __powerpc64__ */
 		oprofilefs_create_ulong(sb, dir, "kernel", &ctr[i].kernel);
 		oprofilefs_create_ulong(sb, dir, "user", &ctr[i].user);
+
+#ifndef __powerpc64__
+		/* FIXME: Not sure if this is used */
+#endif /* ! __powerpc64__ */
 		oprofilefs_create_ulong(sb, dir, "unit_mask", &ctr[i].unit_mask);
 	}
 
 	oprofilefs_create_ulong(sb, root, "enable_kernel", &sys.enable_kernel);
 	oprofilefs_create_ulong(sb, root, "enable_user", &sys.enable_user);
+#ifdef __powerpc64__
 	oprofilefs_create_ulong(sb, root, "backtrace_spinlocks",
 				&sys.backtrace_spinlocks);
+#endif /* __powerpc64__ */
 
 	/* Default to tracing both kernel and user */
 	sys.enable_kernel = 1;
 	sys.enable_user = 1;
-
+#ifdef __powerpc64__
 	/* Turn on backtracing through spinlocks by default */
 	sys.backtrace_spinlocks = 1;
+#endif /* __powerpc64__ */
 
 	return 0;
 }
 
 int __init oprofile_arch_init(struct oprofile_operations *ops)
 {
+#ifndef __powerpc64__
+	int cpu_id = smp_processor_id();
+
+#ifdef CONFIG_FSL_BOOKE
+	model = &op_model_fsl_booke;
+#else
+	return -ENODEV;
+#endif
+
+	cpu_type = kmalloc(32, GFP_KERNEL);
+	if (NULL == cpu_type)
+		return -ENOMEM;
+
+	sprintf(cpu_type, "ppc/%s", cur_cpu_spec[cpu_id]->cpu_name);
+
+	model->num_counters = cur_cpu_spec[cpu_id]->num_pmcs;
+
+	ops->cpu_type = cpu_type;
+#else /* __powerpc64__ */
 	if (!cur_cpu_spec->oprofile_model || !cur_cpu_spec->oprofile_cpu_type)
 		return -ENODEV;
-
 	model = cur_cpu_spec->oprofile_model;
 	model->num_counters = cur_cpu_spec->num_pmcs;
 
 	ops->cpu_type = cur_cpu_spec->oprofile_cpu_type;
-	ops->create_files = op_ppc64_create_files;
-	ops->setup = op_ppc64_setup;
-	ops->shutdown = op_ppc64_shutdown;
-	ops->start = op_ppc64_start;
-	ops->stop = op_ppc64_stop;
+#endif /* __powerpc64__ */
+	ops->create_files = op_powerpc_create_files;
+	ops->setup = op_powerpc_setup;
+	ops->shutdown = op_powerpc_shutdown;
+	ops->start = op_powerpc_start;
+	ops->stop = op_powerpc_stop;
 
 	printk(KERN_INFO "oprofile: using %s performance monitoring.\n",
 	       ops->cpu_type);
@@ -142,4 +207,8 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
 
 void oprofile_arch_exit(void)
 {
+#ifndef __powerpc64__
+	kfree(cpu_type);
+	cpu_type = NULL;
+#endif /* ! __powerpc64__ */
 }

trunk/arch/ppc/Makefile

@@ -71,7 +71,7 @@ drivers-$(CONFIG_8xx)		+= arch/ppc/8xx_io/
 drivers-$(CONFIG_4xx)		+= arch/ppc/4xx_io/
 drivers-$(CONFIG_CPM2)		+= arch/ppc/8260_io/
 
-drivers-$(CONFIG_OPROFILE)	+= arch/ppc/oprofile/
+drivers-$(CONFIG_OPROFILE)	+= arch/powerpc/oprofile/
 
 BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm