arch/sparc/kernel/psycho_common.h

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