arch: powerpc: Remove oprofile

The previous commit already disabled building oprofile, lets remove the
oprofile directory now.

Suggested-by: Christoph Hellwig <hch@infradead.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Robert Richter <rric@kernel.org>
Acked-by: William Cohen <wcohen@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 0 insertions, 243 deletions

diff --git a/arch/powerpc/oprofile/common.c b/arch/powerpc/oprofile/common.c
deleted file mode 100644
index 0fb528c2b3a1..000000000000
--- a/arch/powerpc/oprofile/common.c
+++ /dev/null
@@ -1,243 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * 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.
- */
-
-#include <linux/oprofile.h>
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/errno.h>
-#include <asm/ptrace.h>
-#include <asm/pmc.h>
-#include <asm/cputable.h>
-#include <asm/oprofile_impl.h>
-#include <asm/firmware.h>
-
-static struct op_powerpc_model *model;
-
-static struct op_counter_config ctr[OP_MAX_COUNTER];
-static struct op_system_config sys;
-
-static int op_per_cpu_rc;
-
-static void op_handle_interrupt(struct pt_regs *regs)
-{
-	model->handle_interrupt(regs, ctr);
-}
-
-static void op_powerpc_cpu_setup(void *dummy)
-{
-	int ret;
-
-	ret = model->cpu_setup(ctr);
-
-	if (ret != 0)
-		op_per_cpu_rc = ret;
-}
-
-static int op_powerpc_setup(void)
-{
-	int err;
-
-	op_per_cpu_rc = 0;
-
-	/* Grab the hardware */
-	err = reserve_pmc_hardware(op_handle_interrupt);
-	if (err)
-		return err;
-
-	/* Pre-compute the values to stuff in the hardware registers.  */
-	op_per_cpu_rc = model->reg_setup(ctr, &sys, model->num_counters);
-
-	if (op_per_cpu_rc)
-		goto out;
-
-	/* Configure the registers on all cpus.	 If an error occurs on one
-	 * of the cpus, op_per_cpu_rc will be set to the error */
-	on_each_cpu(op_powerpc_cpu_setup, NULL, 1);
-
-out:	if (op_per_cpu_rc) {
-		/* error on setup release the performance counter hardware */
-		release_pmc_hardware();
-	}
-
-	return op_per_cpu_rc;
-}
-
-static void op_powerpc_shutdown(void)
-{
-	release_pmc_hardware();
-}
-
-static void op_powerpc_cpu_start(void *dummy)
-{
-	/* If any of the cpus have return an error, set the
-	 * global flag to the error so it can be returned
-	 * to the generic OProfile caller.
-	 */
-	int ret;
-
-	ret = model->start(ctr);
-	if (ret != 0)
-		op_per_cpu_rc = ret;
-}
-
-static int op_powerpc_start(void)
-{
-	op_per_cpu_rc = 0;
-
-	if (model->global_start)
-		return model->global_start(ctr);
-	if (model->start) {
-		on_each_cpu(op_powerpc_cpu_start, NULL, 1);
-		return op_per_cpu_rc;
-	}
-	return -EIO; /* No start function is defined for this
-			power architecture */
-}
-
-static inline void op_powerpc_cpu_stop(void *dummy)
-{
-	model->stop();
-}
-
-static void op_powerpc_stop(void)
-{
-	if (model->stop)
-		on_each_cpu(op_powerpc_cpu_stop, NULL, 1);
-        if (model->global_stop)
-                model->global_stop();
-}
-
-static int op_powerpc_create_files(struct dentry *root)
-{
-	int i;
-
-#ifdef CONFIG_PPC64
-	/*
-	 * There is one mmcr0, mmcr1 and mmcra for setting the events for
-	 * all of the counters.
-	 */
-	oprofilefs_create_ulong(root, "mmcr0", &sys.mmcr0);
-	oprofilefs_create_ulong(root, "mmcr1", &sys.mmcr1);
-	oprofilefs_create_ulong(root, "mmcra", &sys.mmcra);
-#ifdef CONFIG_OPROFILE_CELL
-	/* create a file the user tool can check to see what level of profiling
-	 * support exits with this kernel. Initialize bit mask to indicate
-	 * what support the kernel has:
-	 * bit 0      -  Supports SPU event profiling in addition to PPU
-	 *               event and cycles; and SPU cycle profiling
-	 * bits 1-31  -  Currently unused.
-	 *
-	 * If the file does not exist, then the kernel only supports SPU
-	 * cycle profiling, PPU event and cycle profiling.
-	 */
-	oprofilefs_create_ulong(root, "cell_support", &sys.cell_support);
-	sys.cell_support = 0x1; /* Note, the user OProfile tool must check
-				 * that this bit is set before attempting to
-				 * user SPU event profiling.  Older kernels
-				 * will not have this file, hence the user
-				 * tool is not allowed to do SPU event
-				 * profiling on older kernels.  Older kernels
-				 * will accept SPU events but collected data
-				 * is garbage.
-				 */
-#endif
-#endif
-
-	for (i = 0; i < model->num_counters; ++i) {
-		struct dentry *dir;
-		char buf[4];
-
-		snprintf(buf, sizeof buf, "%d", i);
-		dir = oprofilefs_mkdir(root, buf);
-
-		oprofilefs_create_ulong(dir, "enabled", &ctr[i].enabled);
-		oprofilefs_create_ulong(dir, "event", &ctr[i].event);
-		oprofilefs_create_ulong(dir, "count", &ctr[i].count);
-
-		/*
-		 * Classic PowerPC doesn't support per-counter
-		 * control like this, but the options are
-		 * expected, so they remain.  For Freescale
-		 * Book-E style performance monitors, we do
-		 * support them.
-		 */
-		oprofilefs_create_ulong(dir, "kernel", &ctr[i].kernel);
-		oprofilefs_create_ulong(dir, "user", &ctr[i].user);
-
-		oprofilefs_create_ulong(dir, "unit_mask", &ctr[i].unit_mask);
-	}
-
-	oprofilefs_create_ulong(root, "enable_kernel", &sys.enable_kernel);
-	oprofilefs_create_ulong(root, "enable_user", &sys.enable_user);
-
-	/* Default to tracing both kernel and user */
-	sys.enable_kernel = 1;
-	sys.enable_user = 1;
-
-	return 0;
-}
-
-int __init oprofile_arch_init(struct oprofile_operations *ops)
-{
-	if (!cur_cpu_spec->oprofile_cpu_type)
-		return -ENODEV;
-
-	switch (cur_cpu_spec->oprofile_type) {
-#ifdef CONFIG_PPC_BOOK3S_64
-#ifdef CONFIG_OPROFILE_CELL
-		case PPC_OPROFILE_CELL:
-			if (firmware_has_feature(FW_FEATURE_LPAR))
-				return -ENODEV;
-			model = &op_model_cell;
-			ops->sync_start = model->sync_start;
-			ops->sync_stop = model->sync_stop;
-			break;
-#endif
-		case PPC_OPROFILE_POWER4:
-			model = &op_model_power4;
-			break;
-		case PPC_OPROFILE_PA6T:
-			model = &op_model_pa6t;
-			break;
-#endif
-#ifdef CONFIG_PPC_BOOK3S_32
-		case PPC_OPROFILE_G4:
-			model = &op_model_7450;
-			break;
-#endif
-#if defined(CONFIG_FSL_EMB_PERFMON)
-		case PPC_OPROFILE_FSL_EMB:
-			model = &op_model_fsl_emb;
-			break;
-#endif
-		default:
-			return -ENODEV;
-	}
-
-	model->num_counters = cur_cpu_spec->num_pmcs;
-
-	ops->cpu_type = cur_cpu_spec->oprofile_cpu_type;
-	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;
-	ops->backtrace = op_powerpc_backtrace;
-
-	printk(KERN_DEBUG "oprofile: using %s performance monitoring.\n",
-	       ops->cpu_type);
-
-	return 0;
-}
-
-void oprofile_arch_exit(void)
-{
-}