[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / linux / pci-ats.h

#ifndef LINUX_PCI_ATS_H
#define LINUX_PCI_ATS_H

#include <linux/pci.h>

/* Address Translation Service */
struct pci_ats {
	int pos;        /* capability position */
	int stu;        /* Smallest Translation Unit */
	int qdep;       /* Invalidate Queue Depth */
	int ref_cnt;    /* Physical Function reference count */
	unsigned int is_enabled:1;      /* Enable bit is set */
};

#ifdef CONFIG_PCI_ATS

int pci_enable_ats(struct pci_dev *dev, int ps);
void pci_disable_ats(struct pci_dev *dev);
int pci_ats_queue_depth(struct pci_dev *dev);

/**
 * pci_ats_enabled - query the ATS status
 * @dev: the PCI device
 *
 * Returns 1 if ATS capability is enabled, or 0 if not.
 */
static inline int pci_ats_enabled(struct pci_dev *dev)
{
	return dev->ats && dev->ats->is_enabled;
}

#else /* CONFIG_PCI_ATS */

static inline int pci_enable_ats(struct pci_dev *dev, int ps)
{
	return -ENODEV;
}

static inline void pci_disable_ats(struct pci_dev *dev)
{
}

static inline int pci_ats_queue_depth(struct pci_dev *dev)
{
	return -ENODEV;
}

static inline int pci_ats_enabled(struct pci_dev *dev)
{
	return 0;
}

#endif /* CONFIG_PCI_ATS */

#ifdef CONFIG_PCI_PRI

int pci_enable_pri(struct pci_dev *pdev, u32 reqs);
void pci_disable_pri(struct pci_dev *pdev);
bool pci_pri_enabled(struct pci_dev *pdev);
int pci_reset_pri(struct pci_dev *pdev);
bool pci_pri_stopped(struct pci_dev *pdev);
int pci_pri_status(struct pci_dev *pdev);

#else /* CONFIG_PCI_PRI */

static inline int pci_enable_pri(struct pci_dev *pdev, u32 reqs)
{
	return -ENODEV;
}

static inline void pci_disable_pri(struct pci_dev *pdev)
{
}

static inline bool pci_pri_enabled(struct pci_dev *pdev)
{
	return false;
}

static inline int pci_reset_pri(struct pci_dev *pdev)
{
	return -ENODEV;
}

static inline bool pci_pri_stopped(struct pci_dev *pdev)
{
	return true;
}

static inline int pci_pri_status(struct pci_dev *pdev)
{
	return -ENODEV;
}
#endif /* CONFIG_PCI_PRI */

#ifdef CONFIG_PCI_PASID

int pci_enable_pasid(struct pci_dev *pdev, int features);
void pci_disable_pasid(struct pci_dev *pdev);
int pci_pasid_features(struct pci_dev *pdev);
int pci_max_pasids(struct pci_dev *pdev);

#else  /* CONFIG_PCI_PASID */

static inline int pci_enable_pasid(struct pci_dev *pdev, int features)
{
	return -EINVAL;
}

static inline void pci_disable_pasid(struct pci_dev *pdev)
{
}

static inline int pci_pasid_features(struct pci_dev *pdev)
{
	return -EINVAL;
}

static inline int pci_max_pasids(struct pci_dev *pdev)
{
	return -EINVAL;
}

#endif /* CONFIG_PCI_PASID */


#endif /* LINUX_PCI_ATS_H*/
Commit	Line	Data
5cdede24 JR	1	#ifndef LINUX_PCI_ATS_H
	2	#define LINUX_PCI_ATS_H
	3
db3c33c6 JR	4	#include <linux/pci.h>
db3c33c6 JR	5
5cdede24 JR	6	/* Address Translation Service */
	7	struct pci_ats {
	8	int pos; /* capability position */
	9	int stu; /* Smallest Translation Unit */
	10	int qdep; /* Invalidate Queue Depth */
	11	int ref_cnt; /* Physical Function reference count */
	12	unsigned int is_enabled:1; /* Enable bit is set */
	13	};
	14
466b3ddf	15	#ifdef CONFIG_PCI_ATS
5cdede24	16
f39d5b72 BH	17	int pci_enable_ats(struct pci_dev *dev, int ps);
	18	void pci_disable_ats(struct pci_dev *dev);
	19	int pci_ats_queue_depth(struct pci_dev *dev);
c320b976	20
5cdede24 JR	21	/**
	22	* pci_ats_enabled - query the ATS status
	23	* @dev: the PCI device
	24	*
	25	* Returns 1 if ATS capability is enabled, or 0 if not.
	26	*/
	27	static inline int pci_ats_enabled(struct pci_dev *dev)
	28	{
	29	return dev->ats && dev->ats->is_enabled;
	30	}
	31
466b3ddf	32	#else /* CONFIG_PCI_ATS */
5cdede24 JR	33
	34	static inline int pci_enable_ats(struct pci_dev *dev, int ps)
	35	{
	36	return -ENODEV;
	37	}
	38
	39	static inline void pci_disable_ats(struct pci_dev *dev)
	40	{
	41	}
	42
	43	static inline int pci_ats_queue_depth(struct pci_dev *dev)
	44	{
	45	return -ENODEV;
	46	}
	47
	48	static inline int pci_ats_enabled(struct pci_dev *dev)
	49	{
	50	return 0;
	51	}
	52
466b3ddf	53	#endif /* CONFIG_PCI_ATS */
5cdede24	54
c320b976 JR	55	#ifdef CONFIG_PCI_PRI
c320b976 JR	56
f39d5b72 BH	57	int pci_enable_pri(struct pci_dev *pdev, u32 reqs);
	58	void pci_disable_pri(struct pci_dev *pdev);
	59	bool pci_pri_enabled(struct pci_dev *pdev);
	60	int pci_reset_pri(struct pci_dev *pdev);
	61	bool pci_pri_stopped(struct pci_dev *pdev);
	62	int pci_pri_status(struct pci_dev *pdev);
c320b976 JR	63
	64	#else /* CONFIG_PCI_PRI */
	65
	66	static inline int pci_enable_pri(struct pci_dev *pdev, u32 reqs)
	67	{
	68	return -ENODEV;
	69	}
	70
	71	static inline void pci_disable_pri(struct pci_dev *pdev)
	72	{
	73	}
	74
	75	static inline bool pci_pri_enabled(struct pci_dev *pdev)
	76	{
	77	return false;
	78	}
	79
	80	static inline int pci_reset_pri(struct pci_dev *pdev)
	81	{
	82	return -ENODEV;
	83	}
	84
	85	static inline bool pci_pri_stopped(struct pci_dev *pdev)
	86	{
	87	return true;
	88	}
	89
	90	static inline int pci_pri_status(struct pci_dev *pdev)
	91	{
	92	return -ENODEV;
	93	}
	94	#endif /* CONFIG_PCI_PRI */
	95
086ac11f JR	96	#ifdef CONFIG_PCI_PASID
086ac11f JR	97
f39d5b72 BH	98	int pci_enable_pasid(struct pci_dev *pdev, int features);
	99	void pci_disable_pasid(struct pci_dev *pdev);
	100	int pci_pasid_features(struct pci_dev *pdev);
	101	int pci_max_pasids(struct pci_dev *pdev);
086ac11f JR	102
	103	#else /* CONFIG_PCI_PASID */
	104
	105	static inline int pci_enable_pasid(struct pci_dev *pdev, int features)
	106	{
	107	return -EINVAL;
	108	}
	109
	110	static inline void pci_disable_pasid(struct pci_dev *pdev)
	111	{
	112	}
	113
	114	static inline int pci_pasid_features(struct pci_dev *pdev)
	115	{
	116	return -EINVAL;
	117	}
	118
	119	static inline int pci_max_pasids(struct pci_dev *pdev)
	120	{
	121	return -EINVAL;
	122	}
	123
	124	#endif /* CONFIG_PCI_PASID */
	125
	126
5cdede24	127	#endif /* LINUX_PCI_ATS_H*/