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/* SPDX-License-Identifier: GPL-2.0+ */ // Copyright 2017 IBM Corp. #ifndef _ASM_PNV_OCXL_H #define _ASM_PNV_OCXL_H #include <linux/bitfield.h> #include <linux/pci.h> #define PNV_OCXL_TL_MAX_TEMPLATE 63 #define PNV_OCXL_TL_BITS_PER_RATE 4 #define PNV_OCXL_TL_RATE_BUF_SIZE ((PNV_OCXL_TL_MAX_TEMPLATE+1) * PNV_OCXL_TL_BITS_PER_RATE / 8) #define PNV_OCXL_ATSD_TIMEOUT 1 /* TLB Management Instructions */ #define PNV_OCXL_ATSD_LNCH 0x00 /* Radix Invalidate */ #define PNV_OCXL_ATSD_LNCH_R PPC_BIT(0) /* Radix Invalidation Control * 0b00 Just invalidate TLB. * 0b01 Invalidate just Page Walk Cache. * 0b10 Invalidate TLB, Page Walk Cache, and any * caching of Partition and Process Table Entries. */ #define PNV_OCXL_ATSD_LNCH_RIC PPC_BITMASK(1, 2) /* Number and Page Size of translations to be invalidated */ #define PNV_OCXL_ATSD_LNCH_LP PPC_BITMASK(3, 10) /* Invalidation Criteria * 0b00 Invalidate just the target VA. * 0b01 Invalidate matching PID. */ #define PNV_OCXL_ATSD_LNCH_IS PPC_BITMASK(11, 12) /* 0b1: Process Scope, 0b0: Partition Scope */ #define PNV_OCXL_ATSD_LNCH_PRS PPC_BIT(13) /* Invalidation Flag */ #define PNV_OCXL_ATSD_LNCH_B PPC_BIT(14) /* Actual Page Size to be invalidated * 000 4KB * 101 64KB * 001 2MB * 010 1GB */ #define PNV_OCXL_ATSD_LNCH_AP PPC_BITMASK(15, 17) /* Defines the large page select * L=0b0 for 4KB pages * L=0b1 for large pages) */ #define PNV_OCXL_ATSD_LNCH_L PPC_BIT(18) /* Process ID */ #define PNV_OCXL_ATSD_LNCH_PID PPC_BITMASK(19, 38) /* NoFlush – Assumed to be 0b0 */ #define PNV_OCXL_ATSD_LNCH_F PPC_BIT(39) #define PNV_OCXL_ATSD_LNCH_OCAPI_SLBI PPC_BIT(40) #define PNV_OCXL_ATSD_LNCH_OCAPI_SINGLETON PPC_BIT(41) #define PNV_OCXL_ATSD_AVA 0x08 #define PNV_OCXL_ATSD_AVA_AVA PPC_BITMASK(0, 51) #define PNV_OCXL_ATSD_STAT 0x10 int pnv_ocxl_get_actag(struct pci_dev *dev, u16 *base, u16 *enabled, u16 *supported); int pnv_ocxl_get_pasid_count(struct pci_dev *dev, int *count); int pnv_ocxl_get_tl_cap(struct pci_dev *dev, long *cap, char *rate_buf, int rate_buf_size); int pnv_ocxl_set_tl_conf(struct pci_dev *dev, long cap, uint64_t rate_buf_phys, int rate_buf_size); int pnv_ocxl_get_xsl_irq(struct pci_dev *dev, int *hwirq); void pnv_ocxl_unmap_xsl_regs(void __iomem *dsisr, void __iomem *dar, void __iomem *tfc, void __iomem *pe_handle); int pnv_ocxl_map_xsl_regs(struct pci_dev *dev, void __iomem **dsisr, void __iomem **dar, void __iomem **tfc, void __iomem **pe_handle); int pnv_ocxl_spa_setup(struct pci_dev *dev, void *spa_mem, int PE_mask, void **platform_data); void pnv_ocxl_spa_release(void *platform_data); int pnv_ocxl_spa_remove_pe_from_cache(void *platform_data, int pe_handle); int pnv_ocxl_map_lpar(struct pci_dev *dev, uint64_t lparid, uint64_t lpcr, void __iomem **arva); void pnv_ocxl_unmap_lpar(void __iomem *arva); void pnv_ocxl_tlb_invalidate(void __iomem *arva, unsigned long pid, unsigned long addr, unsigned long page_size); #endif /* _ASM_PNV_OCXL_H */