[mirror_ubuntu-artful-kernel.git] / arch / powerpc / include / asm / powernv.h

/*
 * Copyright 2017 IBM Corp.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */

#ifndef _ASM_POWERNV_H
#define _ASM_POWERNV_H

#ifdef CONFIG_PPC_POWERNV
#define NPU2_WRITE 1
extern void powernv_set_nmmu_ptcr(unsigned long ptcr);
extern struct npu_context *pnv_npu2_init_context(struct pci_dev *gpdev,
			unsigned long flags,
			struct npu_context *(*cb)(struct npu_context *, void *),
			void *priv);
extern void pnv_npu2_destroy_context(struct npu_context *context,
				struct pci_dev *gpdev);
extern int pnv_npu2_handle_fault(struct npu_context *context, uintptr_t *ea,
				unsigned long *flags, unsigned long *status,
				int count);
#else
static inline void powernv_set_nmmu_ptcr(unsigned long ptcr) { }
static inline struct npu_context *pnv_npu2_init_context(struct pci_dev *gpdev,
			unsigned long flags,
			struct npu_context *(*cb)(struct npu_context *, void *),
			void *priv) { return ERR_PTR(-ENODEV); }
static inline void pnv_npu2_destroy_context(struct npu_context *context,
					struct pci_dev *gpdev) { }

static inline int pnv_npu2_handle_fault(struct npu_context *context,
					uintptr_t *ea, unsigned long *flags,
					unsigned long *status, int count) {
	return -ENODEV;
}
#endif

#endif /* _ASM_POWERNV_H */
Commit	Line	Data
1d0761d2 AP	1	/*
	2	* Copyright 2017 IBM Corp.
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License
	6	* as published by the Free Software Foundation; either version
	7	* 2 of the License, or (at your option) any later version.
	8	*/
	9
	10	#ifndef _ASM_POWERNV_H
	11	#define _ASM_POWERNV_H
	12
	13	#ifdef CONFIG_PPC_POWERNV
1ab66d1f	14	#define NPU2_WRITE 1
1d0761d2	15	extern void powernv_set_nmmu_ptcr(unsigned long ptcr);
1ab66d1f AP	16	extern struct npu_context pnv_npu2_init_context(struct pci_dev gpdev,
	17	unsigned long flags,
	18	struct npu_context (cb)(struct npu_context , void ),
	19	void *priv);
	20	extern void pnv_npu2_destroy_context(struct npu_context *context,
	21	struct pci_dev *gpdev);
	22	extern int pnv_npu2_handle_fault(struct npu_context context, uintptr_t ea,
	23	unsigned long flags, unsigned long status,
	24	int count);
1d0761d2 AP	25	#else
1d0761d2 AP	26	static inline void powernv_set_nmmu_ptcr(unsigned long ptcr) { }
1ab66d1f AP	27	static inline struct npu_context pnv_npu2_init_context(struct pci_dev gpdev,
	28	unsigned long flags,
	29	struct npu_context (cb)(struct npu_context , void ),
	30	void *priv) { return ERR_PTR(-ENODEV); }
	31	static inline void pnv_npu2_destroy_context(struct npu_context *context,
	32	struct pci_dev *gpdev) { }
	33
	34	static inline int pnv_npu2_handle_fault(struct npu_context *context,
	35	uintptr_t ea, unsigned long flags,
	36	unsigned long *status, int count) {
	37	return -ENODEV;
	38	}
1d0761d2 AP	39	#endif
	40
	41	#endif /* _ASM_POWERNV_H */