6d99262523
The function cam_mem_mgr_release can unmap the buffers when in use. This change prevents unmapping the buffers when in use. CRs-Fixed: 3489559 Change-Id: I2e72e795d39ac15abfa56c19043c419a03686966 Signed-off-by: Shivakumar Malke <quic_smalke@quicinc.com>
209 lines
6.8 KiB
C
209 lines
6.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2017-2021, The Linux Foundation. All rights reserved.
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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_PACKET_UTIL_H_
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#define _CAM_PACKET_UTIL_H_
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#include <media/cam_defs.h>
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#include "cam_hw_mgr_intf.h"
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/**
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* @brief KMD scratch buffer information
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*
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* @handle: Memory handle
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* @cpu_addr: Cpu address
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* @offset: Offset from the start of the buffer
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* @size: Size of the buffer in bytes
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* @used_bytes: Used memory in bytes
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*
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*/
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struct cam_kmd_buf_info {
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int handle;
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uint32_t *cpu_addr;
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uint32_t offset;
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uint32_t size;
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uint32_t used_bytes;
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};
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/* Generic Cmd Buffer blob callback function type */
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typedef int (*cam_packet_generic_blob_handler)(void *user_data,
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uint32_t blob_type, uint32_t blob_size, uint8_t *blob_data);
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/**
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* @brief Get packet buffer address
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*
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* @packet: Pointer to packet to be retrieved
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* @packet_handle: Buffer handle of the packet
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* @offset: offset to packet start address
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*
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* @return: 0 for success
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*/
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int cam_packet_util_get_packet_addr(struct cam_packet **packet,
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uint64_t packet_handle, uint32_t offset);
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/**
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* @brief Put packet buffer address
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*
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* @packet_handle: Buffer handle of the packet
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*/
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void cam_packet_util_put_packet_addr(uint64_t packet_handle);
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/**
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* cam_packet_util_get_cmd_mem_addr()
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*
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* @brief Get command buffer address
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*
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* @handle: Command buffer memory handle
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* @buf_addr: Command buffer cpu mapped address
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* @len: Command buffer length
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*
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* @return: 0 for success
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* -EINVAL for Fail
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*/
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int cam_packet_util_get_cmd_mem_addr(int handle, uint32_t **buf_addr,
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size_t *len);
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/**
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* cam_packet_util_validate_packet()
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*
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* @brief Validate the packet
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*
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* @packet: Packet to be validated
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*
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* @remain_len: CPU buff length after config offset
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*
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* @return: 0 for success
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* -EINVAL for Fail
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*/
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int cam_packet_util_validate_packet(struct cam_packet *packet,
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size_t remain_len);
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/**
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* cam_packet_util_validate_cmd_desc()
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*
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* @brief Validate the packet
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*
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* @cmd_desc: Command descriptor to be validated
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*
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* @return: 0 for success
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* -EINVAL for Fail
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*/
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int cam_packet_util_validate_cmd_desc(struct cam_cmd_buf_desc *cmd_desc);
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/**
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* cam_packet_util_get_kmd_buffer()
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*
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* @brief Get the kmd buffer from the packet command descriptor
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*
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* @packet: Packet data
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* @kmd_buf: Extracted the KMD buffer information
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*
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* @return: 0 for success
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* -EINVAL for Fail
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*/
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int cam_packet_util_get_kmd_buffer(struct cam_packet *packet,
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struct cam_kmd_buf_info *kmd_buf_info);
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/**
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* cam_packet_util_dump_patch_info()
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*
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* @brief: Dump patch info in case of page fault
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*
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* @packet: Input packet containing Command Buffers and Patches
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* @iommu_hdl: IOMMU handle of the HW Device that received the packet
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* @sec_iommu_hdl: Secure IOMMU handle of the HW Device that
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* received the packet
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* @pf_args: Page fault arguments
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*
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*/
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void cam_packet_util_dump_patch_info(struct cam_packet *packet,
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int32_t iommu_hdl, int32_t sec_iommu_hdl, struct cam_hw_dump_pf_args *pf_args);
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/**
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* cam_packet_util_process_patches()
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*
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* @brief: Replace the handle in Packet to Address using the
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* information from patches.
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*
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* @packet: Input packet containing Command Buffers and Patches
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* @mapped_io_list: List in to add patches/buffers to for reference counting
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* @iommu_hdl: IOMMU handle of the HW Device that received the packet
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* @sec_iommu_hdl: Secure IOMMU handle of the HW Device that
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* received the packet
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* @exp_mem: Boolean to know if patched address is in expanded memory range
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* or within default 32-bit address space.
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*
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* @return: 0: Success
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* Negative: Failure
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*/
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int cam_packet_util_process_patches(struct cam_packet *packet,
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struct list_head *mapped_io_list, int32_t iommu_hdl, int32_t sec_mmu_hdl,
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bool exp_mem);
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/**
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* cam_packet_util_dump_io_bufs()
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*
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* @brief: Search for faulted io buffer in packet and print io buffers info
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*
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* @packet: Input packet containing io buffers
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* @iommu_hdl: IOMMU handle of the HW Device that received the packet
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* @sec_iommu_hdl: Secure IOMMU handle of the HW Device that
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* received the packet
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* @pf_args: Pault Fault related info
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* @res_id_support: if the specific device has knowledge of the resource id for hw
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*/
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void cam_packet_util_dump_io_bufs(struct cam_packet *packet,
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int32_t iommu_hdl, int32_t sec_mmu_hdl,
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struct cam_hw_dump_pf_args *pf_args, bool res_id_support);
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/**
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* cam_packet_util_process_generic_cmd_buffer()
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*
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* @brief: Process Generic Blob command buffer. This utility
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* function process the command buffer and calls the
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* blob_handle_cb callback for each blob that exists
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* in the command buffer.
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*
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* @cmd_buf: Generic Blob Cmd Buffer handle
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* @blob_handler_cb: Callback pointer to call for each blob exists in the
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* command buffer
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* @user_data: User data to be passed while callback
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*
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* @return: 0: Success
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* Negative: Failure
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*/
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int cam_packet_util_process_generic_cmd_buffer(
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struct cam_cmd_buf_desc *cmd_buf,
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cam_packet_generic_blob_handler blob_handler_cb, void *user_data);
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/**
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* @brief : API to retrieve image buffers from presil after processing is
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* done,using packet from request
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*
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* @packet: Packet pointer for current request
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* @iommu_hdl: IOMMU hdl for Image buffers
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* @out_res_id: Resource ID corresponding to the output buffer
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*
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* @return: Success or Failure
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*/
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int cam_presil_retrieve_buffers_from_packet(struct cam_packet *packet, int iommu_hdl,
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int out_res_id);
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/**
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* @brief : API to send relevant buffers to presil
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*
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* @packet : Packet pointer for current request
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* @img_iommu_hdl: IOMMU hdl for Image buffers
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* @cdm_iommu_hdl: IOMMU hdl for cdm buffers
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*
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*/
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int cam_presil_send_buffers_from_packet(struct cam_packet *packet, int img_iommu_hdl,
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int cdm_iommu_hdl);
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#endif /* _CAM_PACKET_UTIL_H_ */
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