bifrost/r12p0/kernel/drivers/gpu/arm/midgard/mali_kbase_gator_api.c - manifest_repos/mali-driver - Git at Google

 /*
  *
  * (C) COPYRIGHT 2014-2017 ARM Limited. All rights reserved.
  *
  * This program is free software and is provided to you under the terms of the
  * GNU General Public License version 2 as published by the Free Software
  * Foundation, and any use by you of this program is subject to the terms
  * of such GNU licence.
  *
  * This program 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 this program; if not, you can access it online at
  * http://www.gnu.org/licenses/gpl-2.0.html.
  *
  * SPDX-License-Identifier: GPL-2.0
  *
  */

 #include "mali_kbase.h"
 #include "mali_kbase_hw.h"
 #include "mali_kbase_mem_linux.h"
 #include "mali_kbase_gator_api.h"
 #include "mali_kbase_gator_hwcnt_names.h"

 #define MALI_MAX_CORES_PER_GROUP		4
 #define MALI_MAX_NUM_BLOCKS_PER_GROUP	8
 #define MALI_COUNTERS_PER_BLOCK			64
 #define MALI_BYTES_PER_COUNTER			4

 struct kbase_gator_hwcnt_handles {
 	struct kbase_device *kbdev;
 	struct kbase_vinstr_client *vinstr_cli;
 	void *vinstr_buffer;
 	struct work_struct dump_work;
 	int dump_complete;
 	spinlock_t dump_lock;
 };

 static void dump_worker(struct work_struct *work);

 const char * const *kbase_gator_hwcnt_init_names(uint32_t *total_counters)
 {
 	const char * const *hardware_counters;
 	struct kbase_device *kbdev;
 	uint32_t product_id;
 	uint32_t count;

 	if (!total_counters)
 		return NULL;

 	/* Get the first device - it doesn't matter in this case */
 	kbdev = kbase_find_device(-1);
 	if (!kbdev)
 		return NULL;

 	product_id = kbdev->gpu_props.props.core_props.product_id;

 	if (GPU_ID_IS_NEW_FORMAT(product_id)) {
 		switch (GPU_ID2_MODEL_MATCH_VALUE(product_id)) {
 		case GPU_ID2_PRODUCT_TMIX:
 			hardware_counters = hardware_counters_mali_tMIx;
 			count = ARRAY_SIZE(hardware_counters_mali_tMIx);
 			break;
 		case GPU_ID2_PRODUCT_THEX:
 			hardware_counters = hardware_counters_mali_tHEx;
 			count = ARRAY_SIZE(hardware_counters_mali_tHEx);
 			break;
 		case GPU_ID2_PRODUCT_TSIX:
 			hardware_counters = hardware_counters_mali_tSIx;
 			count = ARRAY_SIZE(hardware_counters_mali_tSIx);
 			break;
 		case GPU_ID2_PRODUCT_TNOX:
 			hardware_counters = hardware_counters_mali_tNOx;
 			count = ARRAY_SIZE(hardware_counters_mali_tNOx);
 			break;
 		default:
 			hardware_counters = NULL;
 			count = 0;
 			dev_err(kbdev->dev, "Unrecognized product ID: %u\n",
 				product_id);
 			break;
 		}
 	} else {
 		switch (product_id) {
 			/* If we are using a Mali-T60x device */
 		case GPU_ID_PI_T60X:
 			hardware_counters = hardware_counters_mali_t60x;
 			count = ARRAY_SIZE(hardware_counters_mali_t60x);
 			break;
 			/* If we are using a Mali-T62x device */
 		case GPU_ID_PI_T62X:
 			hardware_counters = hardware_counters_mali_t62x;
 			count = ARRAY_SIZE(hardware_counters_mali_t62x);
 			break;
 			/* If we are using a Mali-T72x device */
 		case GPU_ID_PI_T72X:
 			hardware_counters = hardware_counters_mali_t72x;
 			count = ARRAY_SIZE(hardware_counters_mali_t72x);
 			break;
 			/* If we are using a Mali-T76x device */
 		case GPU_ID_PI_T76X:
 			hardware_counters = hardware_counters_mali_t76x;
 			count = ARRAY_SIZE(hardware_counters_mali_t76x);
 			break;
 			/* If we are using a Mali-T82x device */
 		case GPU_ID_PI_T82X:
 			hardware_counters = hardware_counters_mali_t82x;
 			count = ARRAY_SIZE(hardware_counters_mali_t82x);
 			break;
 			/* If we are using a Mali-T83x device */
 		case GPU_ID_PI_T83X:
 			hardware_counters = hardware_counters_mali_t83x;
 			count = ARRAY_SIZE(hardware_counters_mali_t83x);
 			break;
 			/* If we are using a Mali-T86x device */
 		case GPU_ID_PI_T86X:
 			hardware_counters = hardware_counters_mali_t86x;
 			count = ARRAY_SIZE(hardware_counters_mali_t86x);
 			break;
 			/* If we are using a Mali-T88x device */
 		case GPU_ID_PI_TFRX:
 			hardware_counters = hardware_counters_mali_t88x;
 			count = ARRAY_SIZE(hardware_counters_mali_t88x);
 			break;
 		default:
 			hardware_counters = NULL;
 			count = 0;
 			dev_err(kbdev->dev, "Unrecognized product ID: %u\n",
 				product_id);
 			break;
 		}
 	}

 	/* Release the kbdev reference. */
 	kbase_release_device(kbdev);

 	*total_counters = count;

 	/* If we return a string array take a reference on the module (or fail). */
 	if (hardware_counters && !try_module_get(THIS_MODULE))
 		return NULL;

 	return hardware_counters;
 }
 KBASE_EXPORT_SYMBOL(kbase_gator_hwcnt_init_names);

 void kbase_gator_hwcnt_term_names(void)
 {
 	/* Release the module reference. */
 	module_put(THIS_MODULE);
 }
 KBASE_EXPORT_SYMBOL(kbase_gator_hwcnt_term_names);

 struct kbase_gator_hwcnt_handles *kbase_gator_hwcnt_init(struct kbase_gator_hwcnt_info *in_out_info)
 {
 	struct kbase_gator_hwcnt_handles *hand;
 	struct kbase_ioctl_hwcnt_reader_setup setup;
 	uint32_t dump_size = 0, i = 0;

 	if (!in_out_info)
 		return NULL;

 	hand = kzalloc(sizeof(*hand), GFP_KERNEL);
 	if (!hand)
 		return NULL;

 	INIT_WORK(&hand->dump_work, dump_worker);
 	spin_lock_init(&hand->dump_lock);

 	/* Get the first device */
 	hand->kbdev = kbase_find_device(-1);
 	if (!hand->kbdev)
 		goto free_hand;

 	dump_size = kbase_vinstr_dump_size(hand->kbdev);
 	hand->vinstr_buffer = kzalloc(dump_size, GFP_KERNEL);
 	if (!hand->vinstr_buffer)
 		goto release_device;
 	in_out_info->kernel_dump_buffer = hand->vinstr_buffer;

 	in_out_info->nr_cores = hand->kbdev->gpu_props.num_cores;
 	in_out_info->nr_core_groups = hand->kbdev->gpu_props.num_core_groups;
 	in_out_info->gpu_id = hand->kbdev->gpu_props.props.core_props.product_id;

 	/* If we are using a v4 device (Mali-T6xx or Mali-T72x) */
 	if (kbase_hw_has_feature(hand->kbdev, BASE_HW_FEATURE_V4)) {
 		uint32_t cg, j;
 		uint64_t core_mask;

 		/* There are 8 hardware counters blocks per core group */
 		in_out_info->hwc_layout = kmalloc(sizeof(enum hwc_type) *
 			MALI_MAX_NUM_BLOCKS_PER_GROUP *
 			in_out_info->nr_core_groups, GFP_KERNEL);

 		if (!in_out_info->hwc_layout)
 			goto free_vinstr_buffer;

 		dump_size = in_out_info->nr_core_groups *
 			MALI_MAX_NUM_BLOCKS_PER_GROUP *
 			MALI_COUNTERS_PER_BLOCK *
 			MALI_BYTES_PER_COUNTER;

 		for (cg = 0; cg < in_out_info->nr_core_groups; cg++) {
 			core_mask = hand->kbdev->gpu_props.props.coherency_info.group[cg].core_mask;

 			for (j = 0; j < MALI_MAX_CORES_PER_GROUP; j++) {
 				if (core_mask & (1u << j))
 					in_out_info->hwc_layout[i++] = SHADER_BLOCK;
 				else
 					in_out_info->hwc_layout[i++] = RESERVED_BLOCK;
 			}

 			in_out_info->hwc_layout[i++] = TILER_BLOCK;
 			in_out_info->hwc_layout[i++] = MMU_L2_BLOCK;

 			in_out_info->hwc_layout[i++] = RESERVED_BLOCK;

 			if (0 == cg)
 				in_out_info->hwc_layout[i++] = JM_BLOCK;
 			else
 				in_out_info->hwc_layout[i++] = RESERVED_BLOCK;
 		}
 	/* If we are using any other device */
 	} else {
 		uint32_t nr_l2, nr_sc_bits, j;
 		uint64_t core_mask;

 		nr_l2 = hand->kbdev->gpu_props.props.l2_props.num_l2_slices;

 		core_mask = hand->kbdev->gpu_props.props.coherency_info.group[0].core_mask;

 		nr_sc_bits = fls64(core_mask);

 		/* The job manager and tiler sets of counters
 		 * are always present */
 		in_out_info->hwc_layout = kmalloc(sizeof(enum hwc_type) * (2 + nr_sc_bits + nr_l2), GFP_KERNEL);

 		if (!in_out_info->hwc_layout)
 			goto free_vinstr_buffer;

 		dump_size = (2 + nr_sc_bits + nr_l2) * MALI_COUNTERS_PER_BLOCK * MALI_BYTES_PER_COUNTER;

 		in_out_info->hwc_layout[i++] = JM_BLOCK;
 		in_out_info->hwc_layout[i++] = TILER_BLOCK;

 		for (j = 0; j < nr_l2; j++)
 			in_out_info->hwc_layout[i++] = MMU_L2_BLOCK;

 		while (core_mask != 0ull) {
 			if ((core_mask & 1ull) != 0ull)
 				in_out_info->hwc_layout[i++] = SHADER_BLOCK;
 			else
 				in_out_info->hwc_layout[i++] = RESERVED_BLOCK;
 			core_mask >>= 1;
 		}
 	}

 	in_out_info->nr_hwc_blocks = i;
 	in_out_info->size = dump_size;

 	setup.jm_bm = in_out_info->bitmask[0];
 	setup.tiler_bm = in_out_info->bitmask[1];
 	setup.shader_bm = in_out_info->bitmask[2];
 	setup.mmu_l2_bm = in_out_info->bitmask[3];
 	hand->vinstr_cli = kbase_vinstr_hwcnt_kernel_setup(hand->kbdev->vinstr_ctx,
 			&setup, hand->vinstr_buffer);
 	if (!hand->vinstr_cli) {
 		dev_err(hand->kbdev->dev, "Failed to register gator with vinstr core");
 		goto free_layout;
 	}

 	return hand;

 free_layout:
 	kfree(in_out_info->hwc_layout);

 free_vinstr_buffer:
 	kfree(hand->vinstr_buffer);

 release_device:
 	kbase_release_device(hand->kbdev);

 free_hand:
 	kfree(hand);
 	return NULL;
 }
 KBASE_EXPORT_SYMBOL(kbase_gator_hwcnt_init);

 void kbase_gator_hwcnt_term(struct kbase_gator_hwcnt_info *in_out_info, struct kbase_gator_hwcnt_handles *opaque_handles)
 {
 	if (in_out_info)
 		kfree(in_out_info->hwc_layout);

 	if (opaque_handles) {
 		cancel_work_sync(&opaque_handles->dump_work);
 		kbase_vinstr_detach_client(opaque_handles->vinstr_cli);
 		kfree(opaque_handles->vinstr_buffer);
 		kbase_release_device(opaque_handles->kbdev);
 		kfree(opaque_handles);
 	}
 }
 KBASE_EXPORT_SYMBOL(kbase_gator_hwcnt_term);

 static void dump_worker(struct work_struct *work)
 {
 	struct kbase_gator_hwcnt_handles *hand;

 	hand = container_of(work, struct kbase_gator_hwcnt_handles, dump_work);
 	if (!kbase_vinstr_hwc_dump(hand->vinstr_cli,
 			BASE_HWCNT_READER_EVENT_MANUAL)) {
 		spin_lock_bh(&hand->dump_lock);
 		hand->dump_complete = 1;
 		spin_unlock_bh(&hand->dump_lock);
 	} else {
 		schedule_work(&hand->dump_work);
 	}
 }

 uint32_t kbase_gator_instr_hwcnt_dump_complete(
 		struct kbase_gator_hwcnt_handles *opaque_handles,
 		uint32_t * const success)
 {

 	if (opaque_handles && success) {
 		*success = opaque_handles->dump_complete;
 		opaque_handles->dump_complete = 0;
 		return *success;
 	}
 	return 0;
 }
 KBASE_EXPORT_SYMBOL(kbase_gator_instr_hwcnt_dump_complete);

 uint32_t kbase_gator_instr_hwcnt_dump_irq(struct kbase_gator_hwcnt_handles *opaque_handles)
 {
 	if (opaque_handles)
 		schedule_work(&opaque_handles->dump_work);
 	return 0;
 }
 KBASE_EXPORT_SYMBOL(kbase_gator_instr_hwcnt_dump_irq);
	/*
	*
	* (C) COPYRIGHT 2014-2017 ARM Limited. All rights reserved.
	*
	* This program is free software and is provided to you under the terms of the
	* GNU General Public License version 2 as published by the Free Software
	* Foundation, and any use by you of this program is subject to the terms
	* of such GNU licence.
	*
	* This program 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 this program; if not, you can access it online at
	* http://www.gnu.org/licenses/gpl-2.0.html.
	*
	* SPDX-License-Identifier: GPL-2.0
	*
	*/

	#include "mali_kbase.h"
	#include "mali_kbase_hw.h"
	#include "mali_kbase_mem_linux.h"
	#include "mali_kbase_gator_api.h"
	#include "mali_kbase_gator_hwcnt_names.h"

	#define MALI_MAX_CORES_PER_GROUP 4
	#define MALI_MAX_NUM_BLOCKS_PER_GROUP 8
	#define MALI_COUNTERS_PER_BLOCK 64
	#define MALI_BYTES_PER_COUNTER 4

	struct kbase_gator_hwcnt_handles {
	struct kbase_device *kbdev;
	struct kbase_vinstr_client *vinstr_cli;
	void *vinstr_buffer;
	struct work_struct dump_work;
	int dump_complete;
	spinlock_t dump_lock;
	};

	static void dump_worker(struct work_struct *work);

	const char * const kbase_gator_hwcnt_init_names(uint32_t total_counters)
	{
	const char * const *hardware_counters;
	struct kbase_device *kbdev;
	uint32_t product_id;
	uint32_t count;

	if (!total_counters)
	return NULL;

	/* Get the first device - it doesn't matter in this case */
	kbdev = kbase_find_device(-1);
	if (!kbdev)
	return NULL;

	product_id = kbdev->gpu_props.props.core_props.product_id;

	if (GPU_ID_IS_NEW_FORMAT(product_id)) {
	switch (GPU_ID2_MODEL_MATCH_VALUE(product_id)) {
	case GPU_ID2_PRODUCT_TMIX:
	hardware_counters = hardware_counters_mali_tMIx;
	count = ARRAY_SIZE(hardware_counters_mali_tMIx);
	break;
	case GPU_ID2_PRODUCT_THEX:
	hardware_counters = hardware_counters_mali_tHEx;
	count = ARRAY_SIZE(hardware_counters_mali_tHEx);
	break;
	case GPU_ID2_PRODUCT_TSIX:
	hardware_counters = hardware_counters_mali_tSIx;
	count = ARRAY_SIZE(hardware_counters_mali_tSIx);
	break;
	case GPU_ID2_PRODUCT_TNOX:
	hardware_counters = hardware_counters_mali_tNOx;
	count = ARRAY_SIZE(hardware_counters_mali_tNOx);
	break;
	default:
	hardware_counters = NULL;
	count = 0;
	dev_err(kbdev->dev, "Unrecognized product ID: %u\n",
	product_id);
	break;
	}
	} else {
	switch (product_id) {
	/* If we are using a Mali-T60x device */
	case GPU_ID_PI_T60X:
	hardware_counters = hardware_counters_mali_t60x;
	count = ARRAY_SIZE(hardware_counters_mali_t60x);
	break;
	/* If we are using a Mali-T62x device */
	case GPU_ID_PI_T62X:
	hardware_counters = hardware_counters_mali_t62x;
	count = ARRAY_SIZE(hardware_counters_mali_t62x);
	break;
	/* If we are using a Mali-T72x device */
	case GPU_ID_PI_T72X:
	hardware_counters = hardware_counters_mali_t72x;
	count = ARRAY_SIZE(hardware_counters_mali_t72x);
	break;
	/* If we are using a Mali-T76x device */
	case GPU_ID_PI_T76X:
	hardware_counters = hardware_counters_mali_t76x;
	count = ARRAY_SIZE(hardware_counters_mali_t76x);
	break;
	/* If we are using a Mali-T82x device */
	case GPU_ID_PI_T82X:
	hardware_counters = hardware_counters_mali_t82x;
	count = ARRAY_SIZE(hardware_counters_mali_t82x);
	break;
	/* If we are using a Mali-T83x device */
	case GPU_ID_PI_T83X:
	hardware_counters = hardware_counters_mali_t83x;
	count = ARRAY_SIZE(hardware_counters_mali_t83x);
	break;
	/* If we are using a Mali-T86x device */
	case GPU_ID_PI_T86X:
	hardware_counters = hardware_counters_mali_t86x;
	count = ARRAY_SIZE(hardware_counters_mali_t86x);
	break;
	/* If we are using a Mali-T88x device */
	case GPU_ID_PI_TFRX:
	hardware_counters = hardware_counters_mali_t88x;
	count = ARRAY_SIZE(hardware_counters_mali_t88x);
	break;
	default:
	hardware_counters = NULL;
	count = 0;
	dev_err(kbdev->dev, "Unrecognized product ID: %u\n",
	product_id);
	break;
	}
	}

	/* Release the kbdev reference. */
	kbase_release_device(kbdev);

	*total_counters = count;

	/* If we return a string array take a reference on the module (or fail). */
	if (hardware_counters && !try_module_get(THIS_MODULE))
	return NULL;

	return hardware_counters;
	}
	KBASE_EXPORT_SYMBOL(kbase_gator_hwcnt_init_names);

	void kbase_gator_hwcnt_term_names(void)
	{
	/* Release the module reference. */
	module_put(THIS_MODULE);
	}
	KBASE_EXPORT_SYMBOL(kbase_gator_hwcnt_term_names);

	struct kbase_gator_hwcnt_handles kbase_gator_hwcnt_init(struct kbase_gator_hwcnt_info in_out_info)
	{
	struct kbase_gator_hwcnt_handles *hand;
	struct kbase_ioctl_hwcnt_reader_setup setup;
	uint32_t dump_size = 0, i = 0;

	if (!in_out_info)
	return NULL;

	hand = kzalloc(sizeof(*hand), GFP_KERNEL);
	if (!hand)
	return NULL;

	INIT_WORK(&hand->dump_work, dump_worker);
	spin_lock_init(&hand->dump_lock);

	/* Get the first device */
	hand->kbdev = kbase_find_device(-1);
	if (!hand->kbdev)
	goto free_hand;

	dump_size = kbase_vinstr_dump_size(hand->kbdev);
	hand->vinstr_buffer = kzalloc(dump_size, GFP_KERNEL);
	if (!hand->vinstr_buffer)
	goto release_device;
	in_out_info->kernel_dump_buffer = hand->vinstr_buffer;

	in_out_info->nr_cores = hand->kbdev->gpu_props.num_cores;
	in_out_info->nr_core_groups = hand->kbdev->gpu_props.num_core_groups;
	in_out_info->gpu_id = hand->kbdev->gpu_props.props.core_props.product_id;

	/* If we are using a v4 device (Mali-T6xx or Mali-T72x) */
	if (kbase_hw_has_feature(hand->kbdev, BASE_HW_FEATURE_V4)) {
	uint32_t cg, j;
	uint64_t core_mask;

	/* There are 8 hardware counters blocks per core group */
	in_out_info->hwc_layout = kmalloc(sizeof(enum hwc_type) *
	MALI_MAX_NUM_BLOCKS_PER_GROUP *
	in_out_info->nr_core_groups, GFP_KERNEL);

	if (!in_out_info->hwc_layout)
	goto free_vinstr_buffer;

	dump_size = in_out_info->nr_core_groups *
	MALI_MAX_NUM_BLOCKS_PER_GROUP *
	MALI_COUNTERS_PER_BLOCK *
	MALI_BYTES_PER_COUNTER;

	for (cg = 0; cg < in_out_info->nr_core_groups; cg++) {
	core_mask = hand->kbdev->gpu_props.props.coherency_info.group[cg].core_mask;

	for (j = 0; j < MALI_MAX_CORES_PER_GROUP; j++) {
	if (core_mask & (1u << j))
	in_out_info->hwc_layout[i++] = SHADER_BLOCK;
	else
	in_out_info->hwc_layout[i++] = RESERVED_BLOCK;
	}

	in_out_info->hwc_layout[i++] = TILER_BLOCK;
	in_out_info->hwc_layout[i++] = MMU_L2_BLOCK;

	in_out_info->hwc_layout[i++] = RESERVED_BLOCK;

	if (0 == cg)
	in_out_info->hwc_layout[i++] = JM_BLOCK;
	else
	in_out_info->hwc_layout[i++] = RESERVED_BLOCK;
	}
	/* If we are using any other device */
	} else {
	uint32_t nr_l2, nr_sc_bits, j;
	uint64_t core_mask;

	nr_l2 = hand->kbdev->gpu_props.props.l2_props.num_l2_slices;

	core_mask = hand->kbdev->gpu_props.props.coherency_info.group[0].core_mask;

	nr_sc_bits = fls64(core_mask);

	/* The job manager and tiler sets of counters
	* are always present */
	in_out_info->hwc_layout = kmalloc(sizeof(enum hwc_type) * (2 + nr_sc_bits + nr_l2), GFP_KERNEL);

	if (!in_out_info->hwc_layout)
	goto free_vinstr_buffer;

	dump_size = (2 + nr_sc_bits + nr_l2) * MALI_COUNTERS_PER_BLOCK * MALI_BYTES_PER_COUNTER;

	in_out_info->hwc_layout[i++] = JM_BLOCK;
	in_out_info->hwc_layout[i++] = TILER_BLOCK;

	for (j = 0; j < nr_l2; j++)
	in_out_info->hwc_layout[i++] = MMU_L2_BLOCK;

	while (core_mask != 0ull) {
	if ((core_mask & 1ull) != 0ull)
	in_out_info->hwc_layout[i++] = SHADER_BLOCK;
	else
	in_out_info->hwc_layout[i++] = RESERVED_BLOCK;
	core_mask >>= 1;
	}
	}

	in_out_info->nr_hwc_blocks = i;
	in_out_info->size = dump_size;

	setup.jm_bm = in_out_info->bitmask[0];
	setup.tiler_bm = in_out_info->bitmask[1];
	setup.shader_bm = in_out_info->bitmask[2];
	setup.mmu_l2_bm = in_out_info->bitmask[3];
	hand->vinstr_cli = kbase_vinstr_hwcnt_kernel_setup(hand->kbdev->vinstr_ctx,
	&setup, hand->vinstr_buffer);
	if (!hand->vinstr_cli) {
	dev_err(hand->kbdev->dev, "Failed to register gator with vinstr core");
	goto free_layout;
	}

	return hand;

	free_layout:
	kfree(in_out_info->hwc_layout);

	free_vinstr_buffer:
	kfree(hand->vinstr_buffer);

	release_device:
	kbase_release_device(hand->kbdev);

	free_hand:
	kfree(hand);
	return NULL;
	}
	KBASE_EXPORT_SYMBOL(kbase_gator_hwcnt_init);

	void kbase_gator_hwcnt_term(struct kbase_gator_hwcnt_info in_out_info, struct kbase_gator_hwcnt_handles opaque_handles)
	{
	if (in_out_info)
	kfree(in_out_info->hwc_layout);

	if (opaque_handles) {
	cancel_work_sync(&opaque_handles->dump_work);
	kbase_vinstr_detach_client(opaque_handles->vinstr_cli);
	kfree(opaque_handles->vinstr_buffer);
	kbase_release_device(opaque_handles->kbdev);
	kfree(opaque_handles);
	}
	}
	KBASE_EXPORT_SYMBOL(kbase_gator_hwcnt_term);

	static void dump_worker(struct work_struct *work)
	{
	struct kbase_gator_hwcnt_handles *hand;

	hand = container_of(work, struct kbase_gator_hwcnt_handles, dump_work);
	if (!kbase_vinstr_hwc_dump(hand->vinstr_cli,
	BASE_HWCNT_READER_EVENT_MANUAL)) {
	spin_lock_bh(&hand->dump_lock);
	hand->dump_complete = 1;
	spin_unlock_bh(&hand->dump_lock);
	} else {
	schedule_work(&hand->dump_work);
	}
	}

	uint32_t kbase_gator_instr_hwcnt_dump_complete(
	struct kbase_gator_hwcnt_handles *opaque_handles,
	uint32_t * const success)
	{

	if (opaque_handles && success) {
	*success = opaque_handles->dump_complete;
	opaque_handles->dump_complete = 0;
	return *success;
	}
	return 0;
	}
	KBASE_EXPORT_SYMBOL(kbase_gator_instr_hwcnt_dump_complete);

	uint32_t kbase_gator_instr_hwcnt_dump_irq(struct kbase_gator_hwcnt_handles *opaque_handles)
	{
	if (opaque_handles)
	schedule_work(&opaque_handles->dump_work);
	return 0;
	}
	KBASE_EXPORT_SYMBOL(kbase_gator_instr_hwcnt_dump_irq);