7049c53fc2
Implements stride alignment and stride validate IOCTL. Additional checks on stride value. Fixes spell error in ioctl interface. Change-Id: Ic4a41a12e2ffa8d45fd71938133accd069dff863 Signed-off-by: Amol Jadi <quic_ajadi@quicinc.com>
137 lines
3.4 KiB
C
137 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
|
|
*/
|
|
|
|
#ifndef __UBWCP_H_
|
|
#define __UBWCP_H_
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/dma-buf.h>
|
|
|
|
#include "../uapi/ubwcp_ioctl.h"
|
|
|
|
|
|
typedef int (*configure_mmap)(struct dma_buf *dmabuf, bool linear, phys_addr_t ula_pa_addr,
|
|
size_t ula_pa_size);
|
|
|
|
/**
|
|
* Get UBWCP hardware version
|
|
*
|
|
* @param ver : ptr to ver struct where hw version will be
|
|
* copied
|
|
*
|
|
* @return int : 0 on success, otherwise error code
|
|
*/
|
|
int ubwcp_get_hw_version(struct ubwcp_ioctl_hw_version *ver);
|
|
|
|
/**
|
|
* Configures ubwcp buffer with the provided buffer image
|
|
* attributes. This call must be done at least once before
|
|
* ubwcp_lock(). Attributes can be configured multiple times,
|
|
* but only during unlocked state.
|
|
*
|
|
* @param dmabuf : ptr to the dma buf
|
|
* @param attr : buffer attributes to set
|
|
*
|
|
* @return int : 0 on success, otherwise error code
|
|
*/
|
|
int ubwcp_set_buf_attrs(struct dma_buf *dmabuf, struct ubwcp_buffer_attrs *attr);
|
|
|
|
/**
|
|
* Get the currently configured attributes for the buffer
|
|
*
|
|
* @param dmabuf : ptr to the dma buf
|
|
* @param attr : pointer to location where image attributes
|
|
* for this buffer will be copied to.
|
|
*
|
|
* @return int : 0 on success, otherwise error code
|
|
*/
|
|
int ubwcp_get_buf_attrs(struct dma_buf *dmabuf, struct ubwcp_buffer_attrs *attr);
|
|
|
|
/**
|
|
* Set permanent range translation for the buffer. This reserves
|
|
* ubwcp address translation resources for the buffer until free
|
|
* is called. This may speed up lock()/unlock() calls as they
|
|
* don't need to configure address translations for the buffer.
|
|
*
|
|
* @param dmabuf : ptr to the dma buf
|
|
* @param enable : true == enable, false == disable
|
|
*
|
|
* @return int : 0 on success, otherwise error code
|
|
*/
|
|
int ubwcp_set_perm_range_translation(struct dma_buf *dmabuf, bool enable);
|
|
|
|
enum ubwcp_error {
|
|
UBWCP_ENCODE_ERROR = 0,
|
|
UBWCP_DECODE_ERROR,
|
|
UBWCP_RANGE_TRANSLATION_ERROR,
|
|
UBWCP_SMMU_FAULT,
|
|
UBWCP_UNKNOWN_ERROR,
|
|
};
|
|
|
|
enum iommu_cb_id {
|
|
UBWCP_DESC_CB_ID = 0,
|
|
UBWCP_BUF_CB_ID,
|
|
UBWCP_UNKNOWN_CB_ID,
|
|
};
|
|
|
|
struct ubwcp_enc_err_info {
|
|
struct dma_buf *dmabuf;
|
|
phys_addr_t ula_pa;
|
|
};
|
|
|
|
struct ubwcp_dec_err_info {
|
|
struct dma_buf *dmabuf;
|
|
phys_addr_t ula_pa;
|
|
};
|
|
|
|
struct ubwcp_translation_err_info {
|
|
struct dma_buf *dmabuf;
|
|
phys_addr_t ula_pa;
|
|
bool read;
|
|
};
|
|
|
|
struct ubwcp_smmu_fault_err_info {
|
|
struct dma_buf *dmabuf;
|
|
unsigned long iova;
|
|
enum iommu_cb_id iommu_dev_id;
|
|
int iommu_fault_flags;
|
|
};
|
|
|
|
struct ubwcp_err_info {
|
|
enum ubwcp_error err_code;
|
|
union {
|
|
struct ubwcp_enc_err_info enc_err;
|
|
struct ubwcp_dec_err_info dec_err;
|
|
struct ubwcp_translation_err_info translation_err;
|
|
struct ubwcp_smmu_fault_err_info smmu_err;
|
|
};
|
|
};
|
|
|
|
typedef void (*ubwcp_error_handler_t)(struct ubwcp_err_info *err, void *data);
|
|
|
|
/*
|
|
* Register an error handler
|
|
*
|
|
* @param client_id : not currently supported (pass in -1)
|
|
* @param handler : the error handler function which will be called when an
|
|
* error occurs
|
|
* @param data : data pointer provided with the error handler function
|
|
*
|
|
* @return int : 0 on success, otherwise error code
|
|
*/
|
|
int ubwcp_register_error_handler(u32 client_id, ubwcp_error_handler_t handler,
|
|
void *data);
|
|
|
|
/*
|
|
* Unregister an error handler
|
|
*
|
|
* @param client_id : client id of handler to unregister (pass in -1)
|
|
*
|
|
* @return int : 0 on success, otherwise error code
|
|
*/
|
|
int ubwcp_unregister_error_handler(u32 client_id);
|
|
|
|
#endif /* __UBWCP_H_ */
|