arch/powerpc/include/asm/perf_event_fsl_emb.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Performance event support - Freescale embedded specific definitions.
 *
 * Copyright 2008-2009 Paul Mackerras, IBM Corporation.
 * Copyright 2010 Freescale Semiconductor, Inc.
 */

#include <linux/types.h>
#include <asm/hw_irq.h>

#define MAX_HWEVENTS 6

/* event flags */
#define FSL_EMB_EVENT_VALID      1
#define FSL_EMB_EVENT_RESTRICTED 2

/* upper half of event flags is PMLCb */
#define FSL_EMB_EVENT_THRESHMUL  0x0000070000000000ULL
#define FSL_EMB_EVENT_THRESH     0x0000003f00000000ULL

struct fsl_emb_pmu {
	const char	*name;
	int		n_counter; /* total number of counters */

	/*
	 * The number of contiguous counters starting at zero that
	 * can hold restricted events, or zero if there are no
	 * restricted events.
	 *
	 * This isn't a very flexible method of expressing constraints,
	 * but it's very simple and is adequate for existing chips.
	 */
	int		n_restricted;

	/* Returns event flags and PMLCb (FSL_EMB_EVENT_*) */
	u64		(*xlate_event)(u64 event_id);

	int		n_generic;
	int		*generic_events;
	int		(*cache_events)[PERF_COUNT_HW_CACHE_MAX]
			       [PERF_COUNT_HW_CACHE_OP_MAX]
			       [PERF_COUNT_HW_CACHE_RESULT_MAX];
};

int register_fsl_emb_pmu(struct fsl_emb_pmu *);