arch/sparc/kernel/psycho_common.h

   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
  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 */