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:
/
usr
/
src
/
linux-headers-6.8.0-83
/
arch
/
s390
/
include
/
asm
/ [
drwxr-xr-x
]
upload
mass deface
mass delete
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name :
pci_dma.h
/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_S390_PCI_DMA_H #define _ASM_S390_PCI_DMA_H /* I/O Translation Anchor (IOTA) */ enum zpci_ioat_dtype { ZPCI_IOTA_STO = 0, ZPCI_IOTA_RTTO = 1, ZPCI_IOTA_RSTO = 2, ZPCI_IOTA_RFTO = 3, ZPCI_IOTA_PFAA = 4, ZPCI_IOTA_IOPFAA = 5, ZPCI_IOTA_IOPTO = 7 }; #define ZPCI_IOTA_IOT_ENABLED 0x800UL #define ZPCI_IOTA_DT_ST (ZPCI_IOTA_STO << 2) #define ZPCI_IOTA_DT_RT (ZPCI_IOTA_RTTO << 2) #define ZPCI_IOTA_DT_RS (ZPCI_IOTA_RSTO << 2) #define ZPCI_IOTA_DT_RF (ZPCI_IOTA_RFTO << 2) #define ZPCI_IOTA_DT_PF (ZPCI_IOTA_PFAA << 2) #define ZPCI_IOTA_FS_4K 0 #define ZPCI_IOTA_FS_1M 1 #define ZPCI_IOTA_FS_2G 2 #define ZPCI_KEY (PAGE_DEFAULT_KEY << 5) #define ZPCI_TABLE_SIZE_RT (1UL << 42) #define ZPCI_IOTA_STO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_ST) #define ZPCI_IOTA_RTTO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RT) #define ZPCI_IOTA_RSTO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RS) #define ZPCI_IOTA_RFTO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RF) #define ZPCI_IOTA_RFAA_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_PF | ZPCI_IOTA_FS_2G) /* I/O Region and segment tables */ #define ZPCI_INDEX_MASK 0x7ffUL #define ZPCI_TABLE_TYPE_MASK 0xc #define ZPCI_TABLE_TYPE_RFX 0xc #define ZPCI_TABLE_TYPE_RSX 0x8 #define ZPCI_TABLE_TYPE_RTX 0x4 #define ZPCI_TABLE_TYPE_SX 0x0 #define ZPCI_TABLE_LEN_RFX 0x3 #define ZPCI_TABLE_LEN_RSX 0x3 #define ZPCI_TABLE_LEN_RTX 0x3 #define ZPCI_TABLE_OFFSET_MASK 0xc0 #define ZPCI_TABLE_SIZE 0x4000 #define ZPCI_TABLE_ALIGN ZPCI_TABLE_SIZE #define ZPCI_TABLE_ENTRY_SIZE (sizeof(unsigned long)) #define ZPCI_TABLE_ENTRIES (ZPCI_TABLE_SIZE / ZPCI_TABLE_ENTRY_SIZE) #define ZPCI_TABLE_BITS 11 #define ZPCI_PT_BITS 8 #define ZPCI_ST_SHIFT (ZPCI_PT_BITS + PAGE_SHIFT) #define ZPCI_RT_SHIFT (ZPCI_ST_SHIFT + ZPCI_TABLE_BITS) #define ZPCI_RTE_FLAG_MASK 0x3fffUL #define ZPCI_RTE_ADDR_MASK (~ZPCI_RTE_FLAG_MASK) #define ZPCI_STE_FLAG_MASK 0x7ffUL #define ZPCI_STE_ADDR_MASK (~ZPCI_STE_FLAG_MASK) /* I/O Page tables */ #define ZPCI_PTE_VALID_MASK 0x400 #define ZPCI_PTE_INVALID 0x400 #define ZPCI_PTE_VALID 0x000 #define ZPCI_PT_SIZE 0x800 #define ZPCI_PT_ALIGN ZPCI_PT_SIZE #define ZPCI_PT_ENTRIES (ZPCI_PT_SIZE / ZPCI_TABLE_ENTRY_SIZE) #define ZPCI_PT_MASK (ZPCI_PT_ENTRIES - 1) #define ZPCI_PTE_FLAG_MASK 0xfffUL #define ZPCI_PTE_ADDR_MASK (~ZPCI_PTE_FLAG_MASK) /* Shared bits */ #define ZPCI_TABLE_VALID 0x00 #define ZPCI_TABLE_INVALID 0x20 #define ZPCI_TABLE_PROTECTED 0x200 #define ZPCI_TABLE_UNPROTECTED 0x000 #define ZPCI_TABLE_VALID_MASK 0x20 #define ZPCI_TABLE_PROT_MASK 0x200 struct zpci_iommu_ctrs { atomic64_t mapped_pages; atomic64_t unmapped_pages; atomic64_t global_rpcits; atomic64_t sync_map_rpcits; atomic64_t sync_rpcits; }; struct zpci_dev; struct zpci_iommu_ctrs *zpci_get_iommu_ctrs(struct zpci_dev *zdev); #endif
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