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1a29ef8e97
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19815 3c298f89-4303-0410-b956-a3cf2f4a3e73
83 lines
3.2 KiB
C
83 lines
3.2 KiB
C
/*
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* arch/ubicom32/mach-common/profile.h
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* Private data for the profile module
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*
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* (C) Copyright 2009, Ubicom, Inc.
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*
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* This file is part of the Ubicom32 Linux Kernel Port.
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*
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* The Ubicom32 Linux Kernel Port is free software: you can redistribute
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* it and/or modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 2 of the
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* License, or (at your option) any later version.
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*
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* The Ubicom32 Linux Kernel Port is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with the Ubicom32 Linux Kernel Port. If not,
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* see <http://www.gnu.org/licenses/>.
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*
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* Ubicom32 implementation derived from (with many thanks):
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* arch/m68knommu
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* arch/blackfin
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* arch/parisc
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*/
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#include <linux/types.h>
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#include <asm/devtree.h>
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#include "profpkt.h"
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#ifndef _PROFILE_H_
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#define _PROFILE_H_
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#define PROFILE_MAX_THREADS 16
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#define PROFILE_MAX_SAMPLES 1024
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struct profile_sample;
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struct oprofile_sample;
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/*
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* values chosen so all counter values fit in a single UDP packet
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*/
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#define PROFILE_NODE_MAX_COUNTERS 32
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struct profile_counter {
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char name[PROFILE_COUNTER_NAME_LENGTH];
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unsigned int value;
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};
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struct profilenode {
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struct devtree_node dn;
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volatile u32_t enabled; /* Is the profiler enabled to take samples? */
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volatile u32_t busy; /* set when the samples are being read by the driver */
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volatile u32_t rate; /* What is the sampling rate? */
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volatile u32_t enabled_threads; /* which threads were enabled at the last sample time */
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volatile u32_t hrt; /* HRT threads */
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volatile u32_t profiler_thread; /* thread running the profile sampler */
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volatile u32_t clocks; /* system clock timer at last sample */
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volatile u32_t clock_freq; /* clock frequency in Hz */
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volatile u32_t ddr_freq; /* memory frequency */
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volatile u32_t cpu_id; /* chip_id register */
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volatile u32_t inst_count[PROFILE_MAX_THREADS]; /* sampled instruction counts at most recent sample */
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volatile u32_t stats[4]; /* contents of the cache statistics counters */
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volatile u16_t head; /* sample taker puts samples here */
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volatile u16_t tail; /* packet filler takes samples here */
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volatile u16_t count; /* number of valid samples */
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volatile u16_t max_samples; /* how many samples can be in the samples array */
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struct profile_sample *samples; /* samples array allocated by the linux driver */
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volatile u32_t num_counters; /* how many registered performance counters */
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volatile struct profile_counter counters[PROFILE_NODE_MAX_COUNTERS];
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/* unimplemented interface for future oprofile work */
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volatile u16_t oprofile_head; /* sample taker puts samples here */
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volatile u16_t oprofile_tail; /* packet filler takes samples here */
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volatile u16_t oprofile_count; /* how many oprofile sampels are are in use */
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volatile u16_t oprofile_max_samples; /* samples array size for oprofile samples */
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struct oprofile_sample *oprofile_samples; /* oprofile sample buffer */
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};
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#endif
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