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Diffstat (limited to 'target/linux/ubicom32/files/arch/ubicom32/mach-common/profile.h')
| -rw-r--r-- | target/linux/ubicom32/files/arch/ubicom32/mach-common/profile.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/mach-common/profile.h b/target/linux/ubicom32/files/arch/ubicom32/mach-common/profile.h new file mode 100644 index 000000000..e6ff7d9fe --- /dev/null +++ b/target/linux/ubicom32/files/arch/ubicom32/mach-common/profile.h @@ -0,0 +1,82 @@ +/* + * arch/ubicom32/mach-common/profile.h + * Private data for the profile module + * + * (C) Copyright 2009, Ubicom, Inc. + * + * This file is part of the Ubicom32 Linux Kernel Port. + * + * The Ubicom32 Linux Kernel Port 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. + * + * The Ubicom32 Linux Kernel Port is distributed in the hope that it + * will be useful, but WITHOUT ANY WARRANTY; without even the implied + * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with the Ubicom32 Linux Kernel Port. If not, + * see <http://www.gnu.org/licenses/>. + * + * Ubicom32 implementation derived from (with many thanks): + * arch/m68knommu + * arch/blackfin + * arch/parisc + */ + +#include <linux/types.h> +#include <asm/devtree.h> +#include "profpkt.h" + +#ifndef _PROFILE_H_ +#define _PROFILE_H_ + +#define PROFILE_MAX_THREADS 16 +#define PROFILE_MAX_SAMPLES 1024 + +struct profile_sample; +struct oprofile_sample; + +/* + * values chosen so all counter values fit in a single UDP packet + */ +#define PROFILE_NODE_MAX_COUNTERS 32 + +struct profile_counter { + char name[PROFILE_COUNTER_NAME_LENGTH]; + unsigned int value; +}; + +struct profilenode { + struct devtree_node dn; + volatile u32_t enabled; /* Is the profiler enabled to take samples? */ + volatile u32_t busy; /* set when the samples are being read by the driver */ + volatile u32_t rate; /* What is the sampling rate? */ + volatile u32_t enabled_threads; /* which threads were enabled at the last sample time */ + volatile u32_t hrt; /* HRT threads */ + volatile u32_t profiler_thread; /* thread running the profile sampler */ + volatile u32_t clocks; /* system clock timer at last sample */ + volatile u32_t clock_freq; /* clock frequency in Hz */ + volatile u32_t ddr_freq; /* memory frequency */ + volatile u32_t cpu_id; /* chip_id register */ + volatile u32_t inst_count[PROFILE_MAX_THREADS]; /* sampled instruction counts at most recent sample */ + volatile u32_t stats[4]; /* contents of the cache statistics counters */ + volatile u16_t head; /* sample taker puts samples here */ + volatile u16_t tail; /* packet filler takes samples here */ + volatile u16_t count; /* number of valid samples */ + volatile u16_t max_samples; /* how many samples can be in the samples array */ + struct profile_sample *samples; /* samples array allocated by the linux driver */ + volatile u32_t num_counters; /* how many registered performance counters */ + volatile struct profile_counter counters[PROFILE_NODE_MAX_COUNTERS]; + + /* unimplemented interface for future oprofile work */ + volatile u16_t oprofile_head; /* sample taker puts samples here */ + volatile u16_t oprofile_tail; /* packet filler takes samples here */ + volatile u16_t oprofile_count; /* how many oprofile sampels are are in use */ + volatile u16_t oprofile_max_samples; /* samples array size for oprofile samples */ + struct oprofile_sample *oprofile_samples; /* oprofile sample buffer */ +}; + +#endif |