1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _PSYCHO_COMMON_H
3 #define _PSYCHO_COMMON_H
4 
5 /* U2P Programmer's Manual, page 13-55, configuration space
6  * address format:
7  *
8  *  32             24 23 16 15    11 10       8 7   2  1 0
9  * ---------------------------------------------------------
10  * |0 0 0 0 0 0 0 0 1| bus | device | function | reg | 0 0 |
11  * ---------------------------------------------------------
12  */
13 #define PSYCHO_CONFIG_BASE(PBM)	\
14 	((PBM)->config_space | (1UL << 24))
15 #define PSYCHO_CONFIG_ENCODE(BUS, DEVFN, REG)	\
16 	(((unsigned long)(BUS)   << 16) |	\
17 	 ((unsigned long)(DEVFN) << 8)  |	\
18 	 ((unsigned long)(REG)))
19 
psycho_pci_config_mkaddr(struct pci_pbm_info * pbm,unsigned char bus,unsigned int devfn,int where)20 static inline void *psycho_pci_config_mkaddr(struct pci_pbm_info *pbm,
21 					     unsigned char bus,
22 					     unsigned int devfn,
23 					     int where)
24 {
25 	return (void *)
26 		(PSYCHO_CONFIG_BASE(pbm) |
27 		 PSYCHO_CONFIG_ENCODE(bus, devfn, where));
28 }
29 
30 enum psycho_error_type {
31 	UE_ERR, CE_ERR, PCI_ERR
32 };
33 
34 void psycho_check_iommu_error(struct pci_pbm_info *pbm,
35 			      unsigned long afsr,
36 			      unsigned long afar,
37 			      enum psycho_error_type type);
38 
39 irqreturn_t psycho_pcierr_intr(int irq, void *dev_id);
40 
41 int psycho_iommu_init(struct pci_pbm_info *pbm, int tsbsize,
42 		      u32 dvma_offset, u32 dma_mask,
43 		      unsigned long write_complete_offset);
44 
45 void psycho_pbm_init_common(struct pci_pbm_info *pbm,
46 			    struct platform_device *op,
47 			    const char *chip_name, int chip_type);
48 
49 #endif /* _PSYCHO_COMMON_H */
50