[linux-block.git] / drivers / vfio / fsl-mc / vfio_fsl_mc_private.h

/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
/*
 * Copyright 2013-2016 Freescale Semiconductor Inc.
 * Copyright 2016,2019-2020 NXP
 */

#ifndef VFIO_FSL_MC_PRIVATE_H
#define VFIO_FSL_MC_PRIVATE_H

#define VFIO_FSL_MC_OFFSET_SHIFT    40
#define VFIO_FSL_MC_OFFSET_MASK (((u64)(1) << VFIO_FSL_MC_OFFSET_SHIFT) - 1)

#define VFIO_FSL_MC_OFFSET_TO_INDEX(off) ((off) >> VFIO_FSL_MC_OFFSET_SHIFT)

#define VFIO_FSL_MC_INDEX_TO_OFFSET(index)	\
	((u64)(index) << VFIO_FSL_MC_OFFSET_SHIFT)

struct vfio_fsl_mc_reflck {
	struct kref		kref;
	struct mutex		lock;
};

struct vfio_fsl_mc_region {
	u32			flags;
	u32			type;
	u64			addr;
	resource_size_t		size;
};

struct vfio_fsl_mc_device {
	struct fsl_mc_device		*mc_dev;
	struct notifier_block        nb;
	int				refcnt;
	struct vfio_fsl_mc_region	*regions;
	struct vfio_fsl_mc_reflck   *reflck;
};

#endif /* VFIO_FSL_MC_PRIVATE_H */
Commit	Line	Data
fb1ff4c1 BB	1	/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
	2	/*
	3	* Copyright 2013-2016 Freescale Semiconductor Inc.
	4	* Copyright 2016,2019-2020 NXP
	5	*/
	6
	7	#ifndef VFIO_FSL_MC_PRIVATE_H
	8	#define VFIO_FSL_MC_PRIVATE_H
	9
df747bcd DC	10	#define VFIO_FSL_MC_OFFSET_SHIFT 40
	11	#define VFIO_FSL_MC_OFFSET_MASK (((u64)(1) << VFIO_FSL_MC_OFFSET_SHIFT) - 1)
	12
	13	#define VFIO_FSL_MC_OFFSET_TO_INDEX(off) ((off) >> VFIO_FSL_MC_OFFSET_SHIFT)
	14
	15	#define VFIO_FSL_MC_INDEX_TO_OFFSET(index) \
	16	((u64)(index) << VFIO_FSL_MC_OFFSET_SHIFT)
	17
f2ba7e8c DC	18	struct vfio_fsl_mc_reflck {
	19	struct kref kref;
	20	struct mutex lock;
	21	};
	22
df747bcd DC	23	struct vfio_fsl_mc_region {
	24	u32 flags;
	25	u32 type;
	26	u64 addr;
	27	resource_size_t size;
	28	};
	29
fb1ff4c1 BB	30	struct vfio_fsl_mc_device {
fb1ff4c1 BB	31	struct fsl_mc_device *mc_dev;
704f5082	32	struct notifier_block nb;
df747bcd DC	33	int refcnt;
df747bcd DC	34	struct vfio_fsl_mc_region *regions;
f2ba7e8c	35	struct vfio_fsl_mc_reflck *reflck;
fb1ff4c1 BB	36	};
	37
	38	#endif /* VFIO_FSL_MC_PRIVATE_H */