From 86a5cddbd9676b129cfa2ed7a1a11759d3b2b512 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Mon, 19 Sep 2005 23:24:08 +1000 Subject: [PATCH] powerpc: merge the rest of arch/ppc*/oprofile - merge common.c - move model specific files - remove stub Makefiles - clean up arch/ppc*/Makefile Signed-off-by: Stephen Rothwell Signed-off-by: Paul Mackerras --- arch/ppc/oprofile/Makefile | 1 - arch/ppc/oprofile/common.c | 160 ---------------------------- arch/ppc/oprofile/op_model_fsl_booke.c | 183 --------------------------------- 3 files changed, 344 deletions(-) delete mode 100644 arch/ppc/oprofile/Makefile delete mode 100644 arch/ppc/oprofile/common.c delete mode 100644 arch/ppc/oprofile/op_model_fsl_booke.c (limited to 'arch/ppc/oprofile') diff --git a/arch/ppc/oprofile/Makefile b/arch/ppc/oprofile/Makefile deleted file mode 100644 index 4bf75b776c5..00000000000 --- a/arch/ppc/oprofile/Makefile +++ /dev/null @@ -1 +0,0 @@ -include arch/powerpc/oprofile/Makefile diff --git a/arch/ppc/oprofile/common.c b/arch/ppc/oprofile/common.c deleted file mode 100644 index f63bee23f20..00000000000 --- a/arch/ppc/oprofile/common.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * PPC 32 oprofile support - * Based on PPC64 oprofile support - * Copyright (C) 2004 Anton Blanchard , IBM - * - * Copyright (C) Freescale Semiconductor, Inc 2004 - * - * Author: Andy Fleming - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static struct op_powerpc_model *model; - -static struct op_counter_config ctr[OP_MAX_COUNTER]; -static struct op_system_config sys; - -static void op_handle_interrupt(struct pt_regs *regs) -{ - model->handle_interrupt(regs, ctr); -} - -static int op_ppc32_setup(void) -{ - /* Install our interrupt handler into the existing hook. */ - if(request_perfmon_irq(&op_handle_interrupt)) - return -EBUSY; - - mb(); - - /* Pre-compute the values to stuff in the hardware registers. */ - model->reg_setup(ctr, &sys, model->num_counters); - -#if 0 - /* FIXME: Make multi-cpu work */ - /* Configure the registers on all cpus. */ - on_each_cpu(model->reg_setup, NULL, 0, 1); -#endif - - return 0; -} - -static void op_ppc32_shutdown(void) -{ - mb(); - - /* Remove our interrupt handler. We may be removing this module. */ - free_perfmon_irq(); -} - -static void op_ppc32_cpu_start(void *dummy) -{ - model->start(ctr); -} - -static int op_ppc32_start(void) -{ - on_each_cpu(op_ppc32_cpu_start, NULL, 0, 1); - return 0; -} - -static inline void op_ppc32_cpu_stop(void *dummy) -{ - model->stop(); -} - -static void op_ppc32_stop(void) -{ - on_each_cpu(op_ppc32_cpu_stop, NULL, 0, 1); -} - -static int op_ppc32_create_files(struct super_block *sb, struct dentry *root) -{ - int i; - - for (i = 0; i < model->num_counters; ++i) { - struct dentry *dir; - char buf[3]; - - snprintf(buf, sizeof buf, "%d", i); - dir = oprofilefs_mkdir(sb, root, buf); - - 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); - oprofilefs_create_ulong(sb, dir, "kernel", &ctr[i].kernel); - oprofilefs_create_ulong(sb, dir, "user", &ctr[i].user); - - /* FIXME: Not sure if this is used */ - 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); - - /* Default to tracing both kernel and user */ - sys.enable_kernel = 1; - sys.enable_user = 1; - - return 0; -} - -static struct oprofile_operations oprof_ppc32_ops = { - .create_files = op_ppc32_create_files, - .setup = op_ppc32_setup, - .shutdown = op_ppc32_shutdown, - .start = op_ppc32_start, - .stop = op_ppc32_stop, - .cpu_type = NULL /* To be filled in below. */ -}; - -int __init oprofile_arch_init(struct oprofile_operations *ops) -{ - char *name; - int cpu_id = smp_processor_id(); - -#ifdef CONFIG_FSL_BOOKE - model = &op_model_fsl_booke; -#else - return -ENODEV; -#endif - - name = kmalloc(32, GFP_KERNEL); - - if (NULL == name) - return -ENOMEM; - - sprintf(name, "ppc/%s", cur_cpu_spec[cpu_id]->cpu_name); - - oprof_ppc32_ops.cpu_type = name; - - model->num_counters = cur_cpu_spec[cpu_id]->num_pmcs; - - *ops = oprof_ppc32_ops; - - printk(KERN_INFO "oprofile: using %s performance monitoring.\n", - oprof_ppc32_ops.cpu_type); - - return 0; -} - -void oprofile_arch_exit(void) -{ - kfree(oprof_ppc32_ops.cpu_type); - oprof_ppc32_ops.cpu_type = NULL; -} diff --git a/arch/ppc/oprofile/op_model_fsl_booke.c b/arch/ppc/oprofile/op_model_fsl_booke.c deleted file mode 100644 index 1917f8df8a8..00000000000 --- a/arch/ppc/oprofile/op_model_fsl_booke.c +++ /dev/null @@ -1,183 +0,0 @@ -/* - * oprofile/op_model_e500.c - * - * Freescale Book-E oprofile support, based on ppc64 oprofile support - * Copyright (C) 2004 Anton Blanchard , IBM - * - * Copyright (c) 2004 Freescale Semiconductor, Inc - * - * Author: Andy Fleming - * Maintainer: Kumar Gala - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static unsigned long reset_value[OP_MAX_COUNTER]; - -static int num_counters; -static int oprofile_running; - -static inline unsigned int ctr_read(unsigned int i) -{ - switch(i) { - case 0: - return mfpmr(PMRN_PMC0); - case 1: - return mfpmr(PMRN_PMC1); - case 2: - return mfpmr(PMRN_PMC2); - case 3: - return mfpmr(PMRN_PMC3); - default: - return 0; - } -} - -static inline void ctr_write(unsigned int i, unsigned int val) -{ - switch(i) { - case 0: - mtpmr(PMRN_PMC0, val); - break; - case 1: - mtpmr(PMRN_PMC1, val); - break; - case 2: - mtpmr(PMRN_PMC2, val); - break; - case 3: - mtpmr(PMRN_PMC3, val); - break; - default: - break; - } -} - - -static void fsl_booke_reg_setup(struct op_counter_config *ctr, - struct op_system_config *sys, - int num_ctrs) -{ - int i; - - num_counters = num_ctrs; - - /* freeze all counters */ - pmc_stop_ctrs(); - - /* Our counters count up, and "count" refers to - * how much before the next interrupt, and we interrupt - * on overflow. So we calculate the starting value - * which will give us "count" until overflow. - * Then we set the events on the enabled counters */ - for (i = 0; i < num_counters; ++i) { - reset_value[i] = 0x80000000UL - ctr[i].count; - - init_pmc_stop(i); - - set_pmc_event(i, ctr[i].event); - - set_pmc_user_kernel(i, ctr[i].user, ctr[i].kernel); - } -} - -static void fsl_booke_start(struct op_counter_config *ctr) -{ - int i; - - mtmsr(mfmsr() | MSR_PMM); - - for (i = 0; i < num_counters; ++i) { - if (ctr[i].enabled) { - ctr_write(i, reset_value[i]); - /* Set Each enabled counterd to only - * count when the Mark bit is not set */ - set_pmc_marked(i, 1, 0); - pmc_start_ctr(i, 1); - } else { - ctr_write(i, 0); - - /* Set the ctr to be stopped */ - pmc_start_ctr(i, 0); - } - } - - /* Clear the freeze bit, and enable the interrupt. - * The counters won't actually start until the rfi clears - * the PMM bit */ - pmc_start_ctrs(1); - - oprofile_running = 1; - - pr_debug("start on cpu %d, pmgc0 %x\n", smp_processor_id(), - mfpmr(PMRN_PMGC0)); -} - -static void fsl_booke_stop(void) -{ - /* freeze counters */ - pmc_stop_ctrs(); - - oprofile_running = 0; - - pr_debug("stop on cpu %d, pmgc0 %x\n", smp_processor_id(), - mfpmr(PMRN_PMGC0)); - - mb(); -} - - -static void fsl_booke_handle_interrupt(struct pt_regs *regs, - struct op_counter_config *ctr) -{ - unsigned long pc; - int is_kernel; - int val; - int i; - - /* set the PMM bit (see comment below) */ - mtmsr(mfmsr() | MSR_PMM); - - pc = regs->nip; - is_kernel = (pc >= KERNELBASE); - - for (i = 0; i < num_counters; ++i) { - val = ctr_read(i); - if (val < 0) { - if (oprofile_running && ctr[i].enabled) { - oprofile_add_pc(pc, is_kernel, i); - ctr_write(i, reset_value[i]); - } else { - ctr_write(i, 0); - } - } - } - - /* The freeze bit was set by the interrupt. */ - /* Clear the freeze bit, and reenable the interrupt. - * The counters won't actually start until the rfi clears - * the PMM bit */ - pmc_start_ctrs(1); -} - -struct op_powerpc_model op_model_fsl_booke = { - .reg_setup = fsl_booke_reg_setup, - .start = fsl_booke_start, - .stop = fsl_booke_stop, - .handle_interrupt = fsl_booke_handle_interrupt, -}; -- cgit v1.2.3