arch/powerpc/include/asm/pnv-ocxl.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 // Copyright 2017 IBM Corp.
   3 #ifndef _ASM_PNV_OCXL_H
   4 #define _ASM_PNV_OCXL_H
   5
   6 #include <linux/pci.h>
   7
   8 #define PNV_OCXL_TL_MAX_TEMPLATE        63
   9 #define PNV_OCXL_TL_BITS_PER_RATE       4
  10 #define PNV_OCXL_TL_RATE_BUF_SIZE       ((PNV_OCXL_TL_MAX_TEMPLATE+1) * PNV_OCXL_TL_BITS_PER_RATE / 8)
  11
  12 extern int pnv_ocxl_get_actag(struct pci_dev *dev, u16 *base, u16 *enabled,
  13                         u16 *supported);
  14 extern int pnv_ocxl_get_pasid_count(struct pci_dev *dev, int *count);
  15
  16 extern int pnv_ocxl_get_tl_cap(struct pci_dev *dev, long *cap,
  17                         char *rate_buf, int rate_buf_size);
  18 extern int pnv_ocxl_set_tl_conf(struct pci_dev *dev, long cap,
  19                         uint64_t rate_buf_phys, int rate_buf_size);
  20
  21 extern int pnv_ocxl_get_xsl_irq(struct pci_dev *dev, int *hwirq);
  22 extern void pnv_ocxl_unmap_xsl_regs(void __iomem *dsisr, void __iomem *dar,
  23                                 void __iomem *tfc, void __iomem *pe_handle);
  24 extern int pnv_ocxl_map_xsl_regs(struct pci_dev *dev, void __iomem **dsisr,
  25                                 void __iomem **dar, void __iomem **tfc,
  26                                 void __iomem **pe_handle);
  27
  28 extern int pnv_ocxl_spa_setup(struct pci_dev *dev, void *spa_mem, int PE_mask,
  29                         void **platform_data);
  30 extern void pnv_ocxl_spa_release(void *platform_data);
  31 extern int pnv_ocxl_spa_remove_pe_from_cache(void *platform_data, int pe_handle);
  32
  33 extern int pnv_ocxl_alloc_xive_irq(u32 *irq, u64 *trigger_addr);
  34 extern void pnv_ocxl_free_xive_irq(u32 irq);
  35
  36 #endif /* _ASM_PNV_OCXL_H */