07b3c215a1
Monitor sync object operations such as create, register callback, signal, unregister callback which is useful in debugging. Introduce debugfs to dynamically set the monitor mask. Apply dump on error when CAM_GENERIC_FENCE_TYPE_xx is set in cam_sync_monitor_mask and apply dump on release when CAM_GENERIC_FENCE_TYPE_xx_DUMP is also set at the same time. Apply dynamic memory allocation for monitor data in synx and dma. Refactor APIs into generic ones and add memory checkings. CRs-Fixed: 3350863 Change-Id: I70cfdc1215be5f6bf564c672a874e6ba7997cdfa Signed-off-by: Pavan Kumar Chilamkurthi <quic_pchilamk@quicinc.com> Signed-off-by: Haochen Yang <quic_haocyang@quicinc.com>
165 lines
4.1 KiB
C
165 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only
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*
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* Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#ifndef __CAM_SYNC_SYNX_H__
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#define __CAM_SYNC_SYNX_H__
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#include <linux/types.h>
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#include <linux/spinlock_types.h>
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#include <linux/bitmap.h>
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#include <synx_api.h>
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#include "cam_sync.h"
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#include "cam_debug_util.h"
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#define CAM_SYNX_MAX_OBJS 256
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#define CAM_SYNX_OBJ_NAME_LEN 64
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#define CAM_SYNX_TABLE_SZ (CAM_SYNX_MAX_OBJS / CAM_GENERIC_MONITOR_TABLE_ENTRY_SZ)
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/* Synx obj state */
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enum cam_synx_obj_state {
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CAM_SYNX_OBJ_STATE_INVALID,
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CAM_SYNX_OBJ_STATE_ACTIVE,
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CAM_SYNX_OBJ_STATE_SIGNALED,
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};
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/**
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* struct cam_synx_obj_release_params - Synx release payload
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* Based on the flag row_idx or synx_obj is consumed
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*
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* @synx_row_idx : Synx obj row idx
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* @synx_obj : Synx object handle
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* @use_row_idx : Use row idx
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*/
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struct cam_synx_obj_release_params {
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union {
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int32_t synx_row_idx;
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uint32_t synx_obj;
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} u;
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bool use_row_idx;
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};
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/**
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* struct cam_synx_obj_fence_signal_sync_obj - SYNX -> sync signal info
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* Payload to signal sync on a synx fence being signaled
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*
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* @synx_obj : Synx object handle
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* @status : Sync signal status
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*/
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struct cam_synx_obj_signal_sync_obj {
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int32_t synx_obj;
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int32_t status;
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};
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/* Synx obj callback function type */
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typedef int (*cam_sync_callback_for_synx_obj)(int32_t sync_obj,
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struct cam_synx_obj_signal_sync_obj *signal_sync_obj);
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/**
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* @brief Find the synx obj in the device's table
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*
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* @param synx_obj : Synx obj
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* @param idx : Synx object table index
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*
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* @return Status of operation. Zero in case of success.
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*/
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int cam_synx_obj_find_obj_in_table(uint32_t synx_obj, int32_t *idx);
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/**
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* @brief Create a synx object
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*
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* @param name : Synx obj name
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* @param flags : Creation flags
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* @param synx_obj : Created synx obj handle
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* @param row_idx : Created synx obj table row idx
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*
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* @return Status of operation. Zero in case of success.
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* -EINVAL will be returned if params were invalid.
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* -ENOMEM will be returned if the kernel can't allocate space for
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* synx object.
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*/
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int cam_synx_obj_create(const char *name, uint32_t flags, uint32_t *synx_obj,
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int32_t *row_idx);
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/**
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* @brief Signal a synx obj when sync obj is signaled
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*
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* @param row_idx : Synx obj table row index
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* @param signal_synx_obj : Info on synx obj to be signaled
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*
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* @return Status of operation. Negative in case of error. Zero otherwise.
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*/
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int cam_synx_obj_internal_signal(int32_t row_idx,
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struct cam_synx_obj_signal *signal_synx_obj);
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/**
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* @brief Import a synx obj for synchronization
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*
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* @param name : Synx obj name
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* @param flags : Import flags
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* @param fence : DMA fence ptr
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* @param synx_obj : New synx obj handle
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* @param row_idx : Imported obj table row idx
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*
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* @return 0 upon success, -EINVAL if synx object is bad state
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*/
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int cam_synx_obj_import_dma_fence(const char *name, uint32_t flags, void *fence,
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uint32_t *synx_obj, int32_t *row_idx);
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/**
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* @brief Release a synx object
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*
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* @param release_params : Synx obj release info
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*
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* @return 0 upon success, negative value otherwise
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*/
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int cam_synx_obj_release(struct cam_synx_obj_release_params *release_params);
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/**
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* @brief Signal a synx obj [userspace API]
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*
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* @param signal_synx_obj : Signal info
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*
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* @return 0 upon success, negative value otherwise
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*/
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int cam_synx_obj_signal_obj(struct cam_synx_obj_signal *signal_synx_obj);
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/**
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* @brief Synx obj register callback
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*
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* @param sync_obj : Sync object
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* @param row_idx : Synx obj table row idx
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* @param sync_cb : Sync object callback
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*
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* @return Status of operation. Negative in case of error. Zero otherwise.
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*/
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int cam_synx_obj_register_cb(int32_t *sync_obj, int32_t row_idx,
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cam_sync_callback_for_synx_obj sync_cb);
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/**
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* @brief: cam synx driver open
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*
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*/
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void cam_synx_obj_open(void);
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/**
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* @brief: cam synx driver close
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*
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*/
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void cam_synx_obj_close(void);
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/**
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* @brief: cam synx driver initialize
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*
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*/
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int cam_synx_obj_driver_init(void);
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/**
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* @brief: cam synx driver deinit
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*
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*/
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void cam_synx_obj_driver_deinit(void);
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#endif /* __CAM_SYNC_SYNX_H__ */
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