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/*
*
* (C) COPYRIGHT 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.
*
* A copy of the licence is included with the program, and can also be obtained
* from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef _LINUX_DMA_BUF_TEST_EXPORTER_H_
#define _LINUX_DMA_BUF_TEST_EXPORTER_H_
#include <linux/types.h>
#include <asm/ioctl.h>
#define DMA_BUF_TE_VER_MAJOR 1
#define DMA_BUF_TE_VER_MINOR 0
#define DMA_BUF_TE_ENQ 0x642d7465
#define DMA_BUF_TE_ACK 0x68692100
struct dma_buf_te_ioctl_version
{
int op; /**< Must be set to DMA_BUF_TE_ENQ by client, driver will set it to DMA_BUF_TE_ACK */
int major; /**< Major version */
int minor; /**< Minor version */
};
struct dma_buf_te_ioctl_alloc
{
__u64 size; /* size of buffer to allocate, in pages */
};
struct dma_buf_te_ioctl_status
{
/* in */
int fd; /* the dma_buf to query, only dma_buf objects exported by this driver is supported */
/* out */
int attached_devices; /* number of devices attached (active 'dma_buf_attach's) */
int device_mappings; /* number of device mappings (active 'dma_buf_map_attachment's) */
int cpu_mappings; /* number of cpu mappings (active 'mmap's) */
};
struct dma_buf_te_ioctl_set_failing
{
/* in */
int fd; /* the dma_buf to set failure mode for, only dma_buf objects exported by this driver is supported */
/* zero = no fail injection, non-zero = inject failure */
int fail_attach;
int fail_map;
int fail_mmap;
};
struct dma_buf_te_ioctl_fill
{
int fd;
unsigned int value;
};
#define DMA_BUF_TE_IOCTL_BASE 'E'
/* Below all returning 0 if successful or -errcode except DMA_BUF_TE_ALLOC which will return fd or -errcode */
#define DMA_BUF_TE_VERSION _IOR(DMA_BUF_TE_IOCTL_BASE, 0x00, struct dma_buf_te_ioctl_version)
#define DMA_BUF_TE_ALLOC _IOR(DMA_BUF_TE_IOCTL_BASE, 0x01, struct dma_buf_te_ioctl_alloc)
#define DMA_BUF_TE_QUERY _IOR(DMA_BUF_TE_IOCTL_BASE, 0x02, struct dma_buf_te_ioctl_status)
#define DMA_BUF_TE_SET_FAILING _IOW(DMA_BUF_TE_IOCTL_BASE, 0x03, struct dma_buf_te_ioctl_set_failing)
#define DMA_BUF_TE_ALLOC_CONT _IOR(DMA_BUF_TE_IOCTL_BASE, 0x04, struct dma_buf_te_ioctl_alloc)
#define DMA_BUF_TE_FILL _IOR(DMA_BUF_TE_IOCTL_BASE, 0x05, struct dma_buf_te_ioctl_fill)
#endif /* _LINUX_DMA_BUF_TEST_EXPORTER_H_ */
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