/*
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*
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* (C) COPYRIGHT 2014-2017 ARM Limited. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the
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* GNU General Public License version 2 as published by the Free Software
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* Foundation, and any use by you of this program is subject to the terms
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* of such GNU licence.
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*
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* A copy of the licence is included with the program, and can also be obtained
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* from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#include "mali_kbase.h"
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#include "mali_kbase_hw.h"
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#include "mali_kbase_mem_linux.h"
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#include "mali_kbase_gator_api.h"
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#include "mali_kbase_gator_hwcnt_names.h"
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#define MALI_MAX_CORES_PER_GROUP 4
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#define MALI_MAX_NUM_BLOCKS_PER_GROUP 8
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#define MALI_COUNTERS_PER_BLOCK 64
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#define MALI_BYTES_PER_COUNTER 4
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struct kbase_gator_hwcnt_handles {
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struct kbase_device *kbdev;
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struct kbase_vinstr_client *vinstr_cli;
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void *vinstr_buffer;
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struct work_struct dump_work;
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int dump_complete;
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spinlock_t dump_lock;
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};
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static void dump_worker(struct work_struct *work);
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const char * const *kbase_gator_hwcnt_init_names(uint32_t *total_counters)
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{
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const char * const *hardware_counters;
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struct kbase_device *kbdev;
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uint32_t product_id;
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uint32_t count;
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if (!total_counters)
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return NULL;
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/* Get the first device - it doesn't matter in this case */
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kbdev = kbase_find_device(-1);
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if (!kbdev)
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return NULL;
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product_id = kbdev->gpu_props.props.core_props.product_id;
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if (GPU_ID_IS_NEW_FORMAT(product_id)) {
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switch (GPU_ID2_MODEL_MATCH_VALUE(product_id)) {
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case GPU_ID2_PRODUCT_TMIX:
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hardware_counters = hardware_counters_mali_tMIx;
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count = ARRAY_SIZE(hardware_counters_mali_tMIx);
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break;
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case GPU_ID2_PRODUCT_THEX:
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hardware_counters = hardware_counters_mali_tHEx;
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count = ARRAY_SIZE(hardware_counters_mali_tHEx);
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break;
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case GPU_ID2_PRODUCT_TSIX:
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hardware_counters = hardware_counters_mali_tSIx;
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count = ARRAY_SIZE(hardware_counters_mali_tSIx);
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break;
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default:
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hardware_counters = NULL;
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count = 0;
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dev_err(kbdev->dev, "Unrecognized product ID: %u\n",
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product_id);
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break;
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}
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} else {
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switch (product_id) {
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/* If we are using a Mali-T60x device */
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case GPU_ID_PI_T60X:
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hardware_counters = hardware_counters_mali_t60x;
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count = ARRAY_SIZE(hardware_counters_mali_t60x);
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break;
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/* If we are using a Mali-T62x device */
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case GPU_ID_PI_T62X:
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hardware_counters = hardware_counters_mali_t62x;
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count = ARRAY_SIZE(hardware_counters_mali_t62x);
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break;
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/* If we are using a Mali-T72x device */
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case GPU_ID_PI_T72X:
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hardware_counters = hardware_counters_mali_t72x;
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count = ARRAY_SIZE(hardware_counters_mali_t72x);
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break;
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/* If we are using a Mali-T76x device */
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case GPU_ID_PI_T76X:
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hardware_counters = hardware_counters_mali_t76x;
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count = ARRAY_SIZE(hardware_counters_mali_t76x);
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break;
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/* If we are using a Mali-T82x device */
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case GPU_ID_PI_T82X:
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hardware_counters = hardware_counters_mali_t82x;
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count = ARRAY_SIZE(hardware_counters_mali_t82x);
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break;
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/* If we are using a Mali-T83x device */
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case GPU_ID_PI_T83X:
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hardware_counters = hardware_counters_mali_t83x;
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count = ARRAY_SIZE(hardware_counters_mali_t83x);
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break;
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/* If we are using a Mali-T86x device */
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case GPU_ID_PI_T86X:
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hardware_counters = hardware_counters_mali_t86x;
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count = ARRAY_SIZE(hardware_counters_mali_t86x);
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break;
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/* If we are using a Mali-T88x device */
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case GPU_ID_PI_TFRX:
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hardware_counters = hardware_counters_mali_t88x;
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count = ARRAY_SIZE(hardware_counters_mali_t88x);
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break;
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default:
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hardware_counters = NULL;
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count = 0;
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dev_err(kbdev->dev, "Unrecognized product ID: %u\n",
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product_id);
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break;
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}
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}
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/* Release the kbdev reference. */
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kbase_release_device(kbdev);
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*total_counters = count;
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/* If we return a string array take a reference on the module (or fail). */
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if (hardware_counters && !try_module_get(THIS_MODULE))
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return NULL;
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return hardware_counters;
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}
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KBASE_EXPORT_SYMBOL(kbase_gator_hwcnt_init_names);
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void kbase_gator_hwcnt_term_names(void)
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{
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/* Release the module reference. */
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module_put(THIS_MODULE);
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}
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KBASE_EXPORT_SYMBOL(kbase_gator_hwcnt_term_names);
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struct kbase_gator_hwcnt_handles *kbase_gator_hwcnt_init(struct kbase_gator_hwcnt_info *in_out_info)
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{
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struct kbase_gator_hwcnt_handles *hand;
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struct kbase_uk_hwcnt_reader_setup setup;
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uint32_t dump_size = 0, i = 0;
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if (!in_out_info)
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return NULL;
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hand = kzalloc(sizeof(*hand), GFP_KERNEL);
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if (!hand)
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return NULL;
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INIT_WORK(&hand->dump_work, dump_worker);
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spin_lock_init(&hand->dump_lock);
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/* Get the first device */
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hand->kbdev = kbase_find_device(-1);
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if (!hand->kbdev)
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goto free_hand;
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dump_size = kbase_vinstr_dump_size(hand->kbdev);
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hand->vinstr_buffer = kzalloc(dump_size, GFP_KERNEL);
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if (!hand->vinstr_buffer)
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goto release_device;
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in_out_info->kernel_dump_buffer = hand->vinstr_buffer;
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in_out_info->nr_cores = hand->kbdev->gpu_props.num_cores;
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in_out_info->nr_core_groups = hand->kbdev->gpu_props.num_core_groups;
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in_out_info->gpu_id = hand->kbdev->gpu_props.props.core_props.product_id;
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/* If we are using a v4 device (Mali-T6xx or Mali-T72x) */
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if (kbase_hw_has_feature(hand->kbdev, BASE_HW_FEATURE_V4)) {
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uint32_t cg, j;
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uint64_t core_mask;
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/* There are 8 hardware counters blocks per core group */
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in_out_info->hwc_layout = kmalloc(sizeof(enum hwc_type) *
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MALI_MAX_NUM_BLOCKS_PER_GROUP *
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in_out_info->nr_core_groups, GFP_KERNEL);
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if (!in_out_info->hwc_layout)
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goto free_vinstr_buffer;
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dump_size = in_out_info->nr_core_groups *
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MALI_MAX_NUM_BLOCKS_PER_GROUP *
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MALI_COUNTERS_PER_BLOCK *
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MALI_BYTES_PER_COUNTER;
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for (cg = 0; cg < in_out_info->nr_core_groups; cg++) {
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core_mask = hand->kbdev->gpu_props.props.coherency_info.group[cg].core_mask;
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for (j = 0; j < MALI_MAX_CORES_PER_GROUP; j++) {
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if (core_mask & (1u << j))
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in_out_info->hwc_layout[i++] = SHADER_BLOCK;
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else
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in_out_info->hwc_layout[i++] = RESERVED_BLOCK;
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}
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in_out_info->hwc_layout[i++] = TILER_BLOCK;
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in_out_info->hwc_layout[i++] = MMU_L2_BLOCK;
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in_out_info->hwc_layout[i++] = RESERVED_BLOCK;
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if (0 == cg)
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in_out_info->hwc_layout[i++] = JM_BLOCK;
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else
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in_out_info->hwc_layout[i++] = RESERVED_BLOCK;
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}
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/* If we are using any other device */
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} else {
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uint32_t nr_l2, nr_sc_bits, j;
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uint64_t core_mask;
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nr_l2 = hand->kbdev->gpu_props.props.l2_props.num_l2_slices;
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core_mask = hand->kbdev->gpu_props.props.coherency_info.group[0].core_mask;
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nr_sc_bits = fls64(core_mask);
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/* The job manager and tiler sets of counters
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* are always present */
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in_out_info->hwc_layout = kmalloc(sizeof(enum hwc_type) * (2 + nr_sc_bits + nr_l2), GFP_KERNEL);
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if (!in_out_info->hwc_layout)
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goto free_vinstr_buffer;
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dump_size = (2 + nr_sc_bits + nr_l2) * MALI_COUNTERS_PER_BLOCK * MALI_BYTES_PER_COUNTER;
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in_out_info->hwc_layout[i++] = JM_BLOCK;
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in_out_info->hwc_layout[i++] = TILER_BLOCK;
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for (j = 0; j < nr_l2; j++)
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in_out_info->hwc_layout[i++] = MMU_L2_BLOCK;
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while (core_mask != 0ull) {
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if ((core_mask & 1ull) != 0ull)
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in_out_info->hwc_layout[i++] = SHADER_BLOCK;
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else
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in_out_info->hwc_layout[i++] = RESERVED_BLOCK;
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core_mask >>= 1;
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}
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}
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in_out_info->nr_hwc_blocks = i;
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in_out_info->size = dump_size;
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setup.jm_bm = in_out_info->bitmask[0];
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setup.tiler_bm = in_out_info->bitmask[1];
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setup.shader_bm = in_out_info->bitmask[2];
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setup.mmu_l2_bm = in_out_info->bitmask[3];
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hand->vinstr_cli = kbase_vinstr_hwcnt_kernel_setup(hand->kbdev->vinstr_ctx,
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&setup, hand->vinstr_buffer);
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if (!hand->vinstr_cli) {
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dev_err(hand->kbdev->dev, "Failed to register gator with vinstr core");
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goto free_layout;
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}
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return hand;
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free_layout:
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kfree(in_out_info->hwc_layout);
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free_vinstr_buffer:
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kfree(hand->vinstr_buffer);
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release_device:
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kbase_release_device(hand->kbdev);
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free_hand:
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kfree(hand);
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return NULL;
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}
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KBASE_EXPORT_SYMBOL(kbase_gator_hwcnt_init);
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void kbase_gator_hwcnt_term(struct kbase_gator_hwcnt_info *in_out_info, struct kbase_gator_hwcnt_handles *opaque_handles)
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{
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if (in_out_info)
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kfree(in_out_info->hwc_layout);
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if (opaque_handles) {
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cancel_work_sync(&opaque_handles->dump_work);
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kbase_vinstr_detach_client(opaque_handles->vinstr_cli);
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kfree(opaque_handles->vinstr_buffer);
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kbase_release_device(opaque_handles->kbdev);
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kfree(opaque_handles);
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}
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}
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KBASE_EXPORT_SYMBOL(kbase_gator_hwcnt_term);
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static void dump_worker(struct work_struct *work)
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{
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struct kbase_gator_hwcnt_handles *hand;
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hand = container_of(work, struct kbase_gator_hwcnt_handles, dump_work);
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if (!kbase_vinstr_hwc_dump(hand->vinstr_cli,
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BASE_HWCNT_READER_EVENT_MANUAL)) {
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spin_lock_bh(&hand->dump_lock);
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hand->dump_complete = 1;
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spin_unlock_bh(&hand->dump_lock);
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} else {
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schedule_work(&hand->dump_work);
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}
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}
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uint32_t kbase_gator_instr_hwcnt_dump_complete(
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struct kbase_gator_hwcnt_handles *opaque_handles,
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uint32_t * const success)
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{
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if (opaque_handles && success) {
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*success = opaque_handles->dump_complete;
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opaque_handles->dump_complete = 0;
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return *success;
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}
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return 0;
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}
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KBASE_EXPORT_SYMBOL(kbase_gator_instr_hwcnt_dump_complete);
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uint32_t kbase_gator_instr_hwcnt_dump_irq(struct kbase_gator_hwcnt_handles *opaque_handles)
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{
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if (opaque_handles)
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schedule_work(&opaque_handles->dump_work);
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return 0;
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}
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KBASE_EXPORT_SYMBOL(kbase_gator_instr_hwcnt_dump_irq);
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