| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Dan Streetman | 407 | 75.93% | 9 | 52.94% |
| Seth Jennings | 65 | 12.13% | 1 | 5.88% |
| Nathan Fontenot | 29 | 5.41% | 1 | 5.88% |
| Haren Myneni | 14 | 2.61% | 1 | 5.88% |
| Gustavo A. R. Silva | 12 | 2.24% | 1 | 5.88% |
| Herbert Xu | 7 | 1.31% | 2 | 11.76% |
| Greg Kroah-Hartman | 1 | 0.19% | 1 | 5.88% |
| Michael Ellerman | 1 | 0.19% | 1 | 5.88% |
| Total | 536 | 17 |
/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __NX_842_H__ #define __NX_842_H__ #include <crypto/algapi.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/module.h> #include <linux/of.h> #include <linux/slab.h> #include <linux/io.h> #include <linux/mm.h> #include <linux/ratelimit.h> /* Restrictions on Data Descriptor List (DDL) and Entry (DDE) buffers * * From NX P8 workbook, sec 4.9.1 "842 details" * Each DDE buffer is 128 byte aligned * Each DDE buffer size is a multiple of 32 bytes (except the last) * The last DDE buffer size is a multiple of 8 bytes */ #define DDE_BUFFER_ALIGN (128) #define DDE_BUFFER_SIZE_MULT (32) #define DDE_BUFFER_LAST_MULT (8) /* Arbitrary DDL length limit * Allows max buffer size of MAX-1 to MAX pages * (depending on alignment) */ #define DDL_LEN_MAX (17) /* CCW 842 CI/FC masks * NX P8 workbook, section 4.3.1, figure 4-6 * "CI/FC Boundary by NX CT type" */ #define CCW_CI_842 (0x00003ff8) #define CCW_FC_842 (0x00000007) /* CCW Function Codes (FC) for 842 * NX P8 workbook, section 4.9, table 4-28 * "Function Code Definitions for 842 Memory Compression" */ #define CCW_FC_842_COMP_NOCRC (0) #define CCW_FC_842_COMP_CRC (1) #define CCW_FC_842_DECOMP_NOCRC (2) #define CCW_FC_842_DECOMP_CRC (3) #define CCW_FC_842_MOVE (4) /* CSB CC Error Types for 842 * NX P8 workbook, section 4.10.3, table 4-30 * "Reported Error Types Summary Table" */ /* These are all duplicates of existing codes defined in icswx.h. */ #define CSB_CC_TRANSLATION_DUP1 (80) #define CSB_CC_TRANSLATION_DUP2 (82) #define CSB_CC_TRANSLATION_DUP3 (84) #define CSB_CC_TRANSLATION_DUP4 (86) #define CSB_CC_TRANSLATION_DUP5 (92) #define CSB_CC_TRANSLATION_DUP6 (94) #define CSB_CC_PROTECTION_DUP1 (81) #define CSB_CC_PROTECTION_DUP2 (83) #define CSB_CC_PROTECTION_DUP3 (85) #define CSB_CC_PROTECTION_DUP4 (87) #define CSB_CC_PROTECTION_DUP5 (93) #define CSB_CC_PROTECTION_DUP6 (95) #define CSB_CC_RD_EXTERNAL_DUP1 (89) #define CSB_CC_RD_EXTERNAL_DUP2 (90) #define CSB_CC_RD_EXTERNAL_DUP3 (91) /* These are specific to NX */ /* 842 codes */ #define CSB_CC_TPBC_GT_SPBC (64) /* no error, but >1 comp ratio */ #define CSB_CC_CRC_MISMATCH (65) /* decomp crc mismatch */ #define CSB_CC_TEMPL_INVALID (66) /* decomp invalid template value */ #define CSB_CC_TEMPL_OVERFLOW (67) /* decomp template shows data after end */ /* sym crypt codes */ #define CSB_CC_DECRYPT_OVERFLOW (64) /* asym crypt codes */ #define CSB_CC_MINV_OVERFLOW (128) /* * HW error - Job did not finish in the maximum time allowed. * Job terminated. */ #define CSB_CC_HW_EXPIRED_TIMER (224) /* These are reserved for hypervisor use */ #define CSB_CC_HYP_RESERVE_START (240) #define CSB_CC_HYP_RESERVE_END (253) #define CSB_CC_HYP_RESERVE_P9_END (251) /* No valid interrupt server (P9 or later). */ #define CSB_CC_HYP_RESERVE_NO_INTR_SERVER (252) #define CSB_CC_HYP_NO_HW (254) #define CSB_CC_HYP_HANG_ABORTED (255) /* CCB Completion Modes (CM) for 842 * NX P8 workbook, section 4.3, figure 4-5 * "CRB Details - Normal Cop_Req (CL=00, C=1)" */ #define CCB_CM_EXTRA_WRITE (CCB_CM0_ALL_COMPLETIONS & CCB_CM12_STORE) #define CCB_CM_INTERRUPT (CCB_CM0_ALL_COMPLETIONS & CCB_CM12_INTERRUPT) #define LEN_ON_SIZE(pa, size) ((size) - ((pa) & ((size) - 1))) #define LEN_ON_PAGE(pa) LEN_ON_SIZE(pa, PAGE_SIZE) static inline unsigned long nx842_get_pa(void *addr) { if (!is_vmalloc_addr(addr)) return __pa(addr); return page_to_phys(vmalloc_to_page(addr)) + offset_in_page(addr); } /** * This provides the driver's constraints. Different nx842 implementations * may have varying requirements. The constraints are: * @alignment: All buffers should be aligned to this * @multiple: All buffer lengths should be a multiple of this * @minimum: Buffer lengths must not be less than this amount * @maximum: Buffer lengths must not be more than this amount * * The constraints apply to all buffers and lengths, both input and output, * for both compression and decompression, except for the minimum which * only applies to compression input and decompression output; the * compressed data can be less than the minimum constraint. It can be * assumed that compressed data will always adhere to the multiple * constraint. * * The driver may succeed even if these constraints are violated; * however the driver can return failure or suffer reduced performance * if any constraint is not met. */ struct nx842_constraints { int alignment; int multiple; int minimum; int maximum; }; struct nx842_driver { char *name; struct module *owner; size_t workmem_size; struct nx842_constraints *constraints; int (*compress)(const unsigned char *in, unsigned int in_len, unsigned char *out, unsigned int *out_len, void *wrkmem); int (*decompress)(const unsigned char *in, unsigned int in_len, unsigned char *out, unsigned int *out_len, void *wrkmem); }; struct nx842_crypto_header_group { __be16 padding; /* unused bytes at start of group */ __be32 compressed_length; /* compressed bytes in group */ __be32 uncompressed_length; /* bytes after decompression */ } __packed; struct nx842_crypto_header { struct_group_tagged(nx842_crypto_header_hdr, hdr, __be16 magic; /* NX842_CRYPTO_MAGIC */ __be16 ignore; /* decompressed end bytes to ignore */ u8 groups; /* total groups in this header */ ); struct nx842_crypto_header_group group[]; } __packed; #define NX842_CRYPTO_GROUP_MAX (0x20) struct nx842_crypto_ctx { spinlock_t lock; u8 *wmem; u8 *sbounce, *dbounce; struct nx842_crypto_header_hdr header; struct nx842_crypto_header_group group[NX842_CRYPTO_GROUP_MAX]; struct nx842_driver *driver; }; int nx842_crypto_init(struct crypto_tfm *tfm, struct nx842_driver *driver); void nx842_crypto_exit(struct crypto_tfm *tfm); int nx842_crypto_compress(struct crypto_tfm *tfm, const u8 *src, unsigned int slen, u8 *dst, unsigned int *dlen); int nx842_crypto_decompress(struct crypto_tfm *tfm, const u8 *src, unsigned int slen, u8 *dst, unsigned int *dlen); #endif /* __NX_842_H__ */
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