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
14 #define NPU2_WRITE 1
15 extern void powernv_set_nmmu_ptcr(unsigned long ptcr);
16 extern struct npu_context *pnv_npu2_init_context(struct pci_dev *gpdev,
17 unsigned long flags,
18 void (*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);
25
26 void pnv_tm_init(void);
27 #else
powernv_set_nmmu_ptcr(unsigned long ptcr)28 static inline void powernv_set_nmmu_ptcr(unsigned long ptcr) { }
pnv_npu2_init_context(struct pci_dev * gpdev,unsigned long flags,struct npu_context * (* cb)(struct npu_context *,void *),void * priv)29 static inline struct npu_context *pnv_npu2_init_context(struct pci_dev *gpdev,
30 unsigned long flags,
31 struct npu_context *(*cb)(struct npu_context *, void *),
32 void *priv) { return ERR_PTR(-ENODEV); }
pnv_npu2_destroy_context(struct npu_context * context,struct pci_dev * gpdev)33 static inline void pnv_npu2_destroy_context(struct npu_context *context,
34 struct pci_dev *gpdev) { }
35
pnv_npu2_handle_fault(struct npu_context * context,uintptr_t * ea,unsigned long * flags,unsigned long * status,int count)36 static inline int pnv_npu2_handle_fault(struct npu_context *context,
37 uintptr_t *ea, unsigned long *flags,
38 unsigned long *status, int count) {
39 return -ENODEV;
40 }
41
pnv_tm_init(void)42 static inline void pnv_tm_init(void) { }
pnv_power9_force_smt4(void)43 static inline void pnv_power9_force_smt4(void) { }
44 #endif
45
46 #endif /* _ASM_POWERNV_H */
47
