/*
 * pfmlib_arm_armv7_pmuv1.c : 	support for ARMV7 chips
 * 
 * Copyright (c) 2010 University of Tennessee
 * Contributed by Vince Weaver <vweaver1@utk.edu>
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 */

#include <sys/types.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>

/* private headers */
#include "pfmlib_priv.h"			/* library private */
#include "pfmlib_arm_priv.h"

#include "events/arm_cortex_a7_events.h"        /* event tables */
#include "events/arm_cortex_a8_events.h"
#include "events/arm_cortex_a9_events.h"
#include "events/arm_cortex_a15_events.h"
#include "events/arm_qcom_krait_events.h"

static int
pfm_arm_detect_cortex_a7(void *this)
{

	int ret;

	ret = pfm_arm_detect(this);
	if (ret != PFM_SUCCESS)
		return PFM_ERR_NOTSUPP;

	if ((pfm_arm_cfg.implementer == 0x41) && /* ARM */
			(pfm_arm_cfg.part == 0xc07)) { /* Cortex-A7 */
		return PFM_SUCCESS;
	}
	return PFM_ERR_NOTSUPP;
}

static int
pfm_arm_detect_cortex_a8(void *this)
{

	int ret;

	ret = pfm_arm_detect(this);
	if (ret != PFM_SUCCESS)
		return PFM_ERR_NOTSUPP;

	if ((pfm_arm_cfg.implementer == 0x41) && /* ARM */
			(pfm_arm_cfg.part == 0xc08)) { /* Cortex-A8 */
		return PFM_SUCCESS;
	}
	return PFM_ERR_NOTSUPP;
}

static int
pfm_arm_detect_cortex_a9(void *this)
{

	int ret;

	ret = pfm_arm_detect(this);
	if (ret != PFM_SUCCESS)
		return PFM_ERR_NOTSUPP;

	if ((pfm_arm_cfg.implementer == 0x41) && /* ARM */
			(pfm_arm_cfg.part==0xc09)) { /* Cortex-A8 */
		return PFM_SUCCESS;
	}
	return PFM_ERR_NOTSUPP;
}

static int
pfm_arm_detect_cortex_a15(void *this)
{

	int ret;

	ret = pfm_arm_detect(this);
	if (ret != PFM_SUCCESS)
		return PFM_ERR_NOTSUPP;

	if ((pfm_arm_cfg.implementer == 0x41) && /* ARM */
			(pfm_arm_cfg.part==0xc0f)) { /* Cortex-A15 */
		return PFM_SUCCESS;
	}
	return PFM_ERR_NOTSUPP;
}

static int
pfm_arm_detect_krait(void *this)
{

	int ret;

	ret = pfm_arm_detect(this);
	if (ret != PFM_SUCCESS)
		return PFM_ERR_NOTSUPP;

	/* Check for Qualcomm */
	if (pfm_arm_cfg.implementer == 0x51) {
		/* Check that [15:10] of midr is 0x01 which	*/
		/* indicates Krait rather than Scorpion	CPU	*/
		/* pfm_arm_cfg.part is (midr>>4)&0xfff		*/
		if (pfm_arm_cfg.part >> 6 == 0x1) {
			return PFM_SUCCESS;
		}
	}
	return PFM_ERR_NOTSUPP;
}


/* Cortex A7 support */
pfmlib_pmu_t arm_cortex_a7_support={
	.desc			= "ARM Cortex A7",
	.name			= "arm_ac7",
	.pmu			= PFM_PMU_ARM_CORTEX_A7,
	.pme_count		= LIBPFM_ARRAY_SIZE(arm_cortex_a7_pe),
	.type			= PFM_PMU_TYPE_CORE,
	.pe			= arm_cortex_a7_pe,

	.pmu_detect		= pfm_arm_detect_cortex_a7,
	.max_encoding		= 1,
	.num_cntrs		= 4,
	.supported_plm		= ARMV7_A7_PLM,

	.get_event_encoding[PFM_OS_NONE] = pfm_arm_get_encoding,
	 PFMLIB_ENCODE_PERF(pfm_arm_get_perf_encoding),
	.get_event_first	= pfm_arm_get_event_first,
	.get_event_next		= pfm_arm_get_event_next,
	.event_is_valid		= pfm_arm_event_is_valid,
	.validate_table		= pfm_arm_validate_table,
	.get_event_info		= pfm_arm_get_event_info,
	.get_event_attr_info	= pfm_arm_get_event_attr_info,
	 PFMLIB_VALID_PERF_PATTRS(pfm_arm_perf_validate_pattrs),
	.get_event_nattrs	= pfm_arm_get_event_nattrs,
};

/* Cortex A8 support */
pfmlib_pmu_t arm_cortex_a8_support={
	.desc			= "ARM Cortex A8",
	.name			= "arm_ac8",
	.pmu			= PFM_PMU_ARM_CORTEX_A8,
	.pme_count		= LIBPFM_ARRAY_SIZE(arm_cortex_a8_pe),
	.type			= PFM_PMU_TYPE_CORE,
	.pe			= arm_cortex_a8_pe,

	.pmu_detect		= pfm_arm_detect_cortex_a8,
	.max_encoding		= 1,
	.num_cntrs		= 2,

	.get_event_encoding[PFM_OS_NONE] = pfm_arm_get_encoding,
	 PFMLIB_ENCODE_PERF(pfm_arm_get_perf_encoding),
	.get_event_first	= pfm_arm_get_event_first,
	.get_event_next		= pfm_arm_get_event_next,
	.event_is_valid		= pfm_arm_event_is_valid,
	.validate_table		= pfm_arm_validate_table,
	.get_event_info		= pfm_arm_get_event_info,
	.get_event_attr_info	= pfm_arm_get_event_attr_info,
	 PFMLIB_VALID_PERF_PATTRS(pfm_arm_perf_validate_pattrs),
	.get_event_nattrs	= pfm_arm_get_event_nattrs,
};

/* Cortex A9 support */
pfmlib_pmu_t arm_cortex_a9_support={
	.desc			= "ARM Cortex A9",
	.name			= "arm_ac9",
	.pmu			= PFM_PMU_ARM_CORTEX_A9,
	.pme_count		= LIBPFM_ARRAY_SIZE(arm_cortex_a9_pe),
	.type			= PFM_PMU_TYPE_CORE,
	.pe			= arm_cortex_a9_pe,

	.pmu_detect		= pfm_arm_detect_cortex_a9,
	.max_encoding		= 1,
	.num_cntrs		= 2,

	.get_event_encoding[PFM_OS_NONE] = pfm_arm_get_encoding,
	 PFMLIB_ENCODE_PERF(pfm_arm_get_perf_encoding),
	.get_event_first	= pfm_arm_get_event_first,
	.get_event_next		= pfm_arm_get_event_next,
	.event_is_valid		= pfm_arm_event_is_valid,
	.validate_table		= pfm_arm_validate_table,
	.get_event_info		= pfm_arm_get_event_info,
	.get_event_attr_info	= pfm_arm_get_event_attr_info,
	 PFMLIB_VALID_PERF_PATTRS(pfm_arm_perf_validate_pattrs),
	.get_event_nattrs	= pfm_arm_get_event_nattrs,
};

/* Cortex A15 support */
pfmlib_pmu_t arm_cortex_a15_support={
	.desc			= "ARM Cortex A15",
	.name			= "arm_ac15",
	.pmu			= PFM_PMU_ARM_CORTEX_A15,
	.pme_count		= LIBPFM_ARRAY_SIZE(arm_cortex_a15_pe),
	.type			= PFM_PMU_TYPE_CORE,
	.pe			= arm_cortex_a15_pe,

	.pmu_detect		= pfm_arm_detect_cortex_a15,
	.max_encoding		= 1,
	.num_cntrs		= 6,
	.supported_plm		= ARMV7_A15_PLM,

	.get_event_encoding[PFM_OS_NONE] = pfm_arm_get_encoding,
	 PFMLIB_ENCODE_PERF(pfm_arm_get_perf_encoding),
	.get_event_first	= pfm_arm_get_event_first,
	.get_event_next		= pfm_arm_get_event_next,
	.event_is_valid		= pfm_arm_event_is_valid,
	.validate_table		= pfm_arm_validate_table,
	.get_event_info		= pfm_arm_get_event_info,
	.get_event_attr_info	= pfm_arm_get_event_attr_info,
	 PFMLIB_VALID_PERF_PATTRS(pfm_arm_perf_validate_pattrs),
	.get_event_nattrs	= pfm_arm_get_event_nattrs,
};

/* Qualcomm Krait support */
pfmlib_pmu_t arm_qcom_krait_support={
	.desc			= "ARM Qualcomm Krait",
	.name			= "qcom_krait",
	.pmu			= PFM_PMU_ARM_QCOM_KRAIT,
	.pme_count		= LIBPFM_ARRAY_SIZE(arm_qcom_krait_pe),
	.type			= PFM_PMU_TYPE_CORE,
	.pe			= arm_qcom_krait_pe,

	.pmu_detect		= pfm_arm_detect_krait,
	.max_encoding		= 1,
	.num_cntrs		= 5,
	.supported_plm		= ARMV7_A15_PLM,

	.get_event_encoding[PFM_OS_NONE] = pfm_arm_get_encoding,
	 PFMLIB_ENCODE_PERF(pfm_arm_get_perf_encoding),
	.get_event_first	= pfm_arm_get_event_first,
	.get_event_next		= pfm_arm_get_event_next,
	.event_is_valid		= pfm_arm_event_is_valid,
	.validate_table		= pfm_arm_validate_table,
	.get_event_info		= pfm_arm_get_event_info,
	.get_event_attr_info	= pfm_arm_get_event_attr_info,
	 PFMLIB_VALID_PERF_PATTRS(pfm_arm_perf_validate_pattrs),
	.get_event_nattrs	= pfm_arm_get_event_nattrs,
};