Tom Zanussi | b190447 | 2023-12-05 15:25:26 -0600 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* Copyright(c) 2021 Intel Corporation. All rights rsvd. */ |
| 3 | |
| 4 | #include "idxd.h" |
| 5 | #include "iaa_crypto.h" |
| 6 | |
| 7 | /* |
| 8 | * Fixed Huffman tables the IAA hardware requires to implement RFC-1951. |
| 9 | */ |
| 10 | static const u32 fixed_ll_sym[286] = { |
| 11 | 0x40030, 0x40031, 0x40032, 0x40033, 0x40034, 0x40035, 0x40036, 0x40037, |
| 12 | 0x40038, 0x40039, 0x4003A, 0x4003B, 0x4003C, 0x4003D, 0x4003E, 0x4003F, |
| 13 | 0x40040, 0x40041, 0x40042, 0x40043, 0x40044, 0x40045, 0x40046, 0x40047, |
| 14 | 0x40048, 0x40049, 0x4004A, 0x4004B, 0x4004C, 0x4004D, 0x4004E, 0x4004F, |
| 15 | 0x40050, 0x40051, 0x40052, 0x40053, 0x40054, 0x40055, 0x40056, 0x40057, |
| 16 | 0x40058, 0x40059, 0x4005A, 0x4005B, 0x4005C, 0x4005D, 0x4005E, 0x4005F, |
| 17 | 0x40060, 0x40061, 0x40062, 0x40063, 0x40064, 0x40065, 0x40066, 0x40067, |
| 18 | 0x40068, 0x40069, 0x4006A, 0x4006B, 0x4006C, 0x4006D, 0x4006E, 0x4006F, |
| 19 | 0x40070, 0x40071, 0x40072, 0x40073, 0x40074, 0x40075, 0x40076, 0x40077, |
| 20 | 0x40078, 0x40079, 0x4007A, 0x4007B, 0x4007C, 0x4007D, 0x4007E, 0x4007F, |
| 21 | 0x40080, 0x40081, 0x40082, 0x40083, 0x40084, 0x40085, 0x40086, 0x40087, |
| 22 | 0x40088, 0x40089, 0x4008A, 0x4008B, 0x4008C, 0x4008D, 0x4008E, 0x4008F, |
| 23 | 0x40090, 0x40091, 0x40092, 0x40093, 0x40094, 0x40095, 0x40096, 0x40097, |
| 24 | 0x40098, 0x40099, 0x4009A, 0x4009B, 0x4009C, 0x4009D, 0x4009E, 0x4009F, |
| 25 | 0x400A0, 0x400A1, 0x400A2, 0x400A3, 0x400A4, 0x400A5, 0x400A6, 0x400A7, |
| 26 | 0x400A8, 0x400A9, 0x400AA, 0x400AB, 0x400AC, 0x400AD, 0x400AE, 0x400AF, |
| 27 | 0x400B0, 0x400B1, 0x400B2, 0x400B3, 0x400B4, 0x400B5, 0x400B6, 0x400B7, |
| 28 | 0x400B8, 0x400B9, 0x400BA, 0x400BB, 0x400BC, 0x400BD, 0x400BE, 0x400BF, |
| 29 | 0x48190, 0x48191, 0x48192, 0x48193, 0x48194, 0x48195, 0x48196, 0x48197, |
| 30 | 0x48198, 0x48199, 0x4819A, 0x4819B, 0x4819C, 0x4819D, 0x4819E, 0x4819F, |
| 31 | 0x481A0, 0x481A1, 0x481A2, 0x481A3, 0x481A4, 0x481A5, 0x481A6, 0x481A7, |
| 32 | 0x481A8, 0x481A9, 0x481AA, 0x481AB, 0x481AC, 0x481AD, 0x481AE, 0x481AF, |
| 33 | 0x481B0, 0x481B1, 0x481B2, 0x481B3, 0x481B4, 0x481B5, 0x481B6, 0x481B7, |
| 34 | 0x481B8, 0x481B9, 0x481BA, 0x481BB, 0x481BC, 0x481BD, 0x481BE, 0x481BF, |
| 35 | 0x481C0, 0x481C1, 0x481C2, 0x481C3, 0x481C4, 0x481C5, 0x481C6, 0x481C7, |
| 36 | 0x481C8, 0x481C9, 0x481CA, 0x481CB, 0x481CC, 0x481CD, 0x481CE, 0x481CF, |
| 37 | 0x481D0, 0x481D1, 0x481D2, 0x481D3, 0x481D4, 0x481D5, 0x481D6, 0x481D7, |
| 38 | 0x481D8, 0x481D9, 0x481DA, 0x481DB, 0x481DC, 0x481DD, 0x481DE, 0x481DF, |
| 39 | 0x481E0, 0x481E1, 0x481E2, 0x481E3, 0x481E4, 0x481E5, 0x481E6, 0x481E7, |
| 40 | 0x481E8, 0x481E9, 0x481EA, 0x481EB, 0x481EC, 0x481ED, 0x481EE, 0x481EF, |
| 41 | 0x481F0, 0x481F1, 0x481F2, 0x481F3, 0x481F4, 0x481F5, 0x481F6, 0x481F7, |
| 42 | 0x481F8, 0x481F9, 0x481FA, 0x481FB, 0x481FC, 0x481FD, 0x481FE, 0x481FF, |
| 43 | 0x38000, 0x38001, 0x38002, 0x38003, 0x38004, 0x38005, 0x38006, 0x38007, |
| 44 | 0x38008, 0x38009, 0x3800A, 0x3800B, 0x3800C, 0x3800D, 0x3800E, 0x3800F, |
| 45 | 0x38010, 0x38011, 0x38012, 0x38013, 0x38014, 0x38015, 0x38016, 0x38017, |
| 46 | 0x400C0, 0x400C1, 0x400C2, 0x400C3, 0x400C4, 0x400C5 |
| 47 | }; |
| 48 | |
| 49 | static const u32 fixed_d_sym[30] = { |
| 50 | 0x28000, 0x28001, 0x28002, 0x28003, 0x28004, 0x28005, 0x28006, 0x28007, |
| 51 | 0x28008, 0x28009, 0x2800A, 0x2800B, 0x2800C, 0x2800D, 0x2800E, 0x2800F, |
| 52 | 0x28010, 0x28011, 0x28012, 0x28013, 0x28014, 0x28015, 0x28016, 0x28017, |
| 53 | 0x28018, 0x28019, 0x2801A, 0x2801B, 0x2801C, 0x2801D |
| 54 | }; |
| 55 | |
| 56 | static int init_fixed_mode(struct iaa_device_compression_mode *mode) |
| 57 | { |
| 58 | struct aecs_comp_table_record *comp_table = mode->aecs_comp_table; |
| 59 | u32 bfinal = 1; |
| 60 | u32 offset; |
| 61 | |
| 62 | /* Configure aecs table using fixed Huffman table */ |
| 63 | comp_table->crc = 0; |
| 64 | comp_table->xor_checksum = 0; |
| 65 | offset = comp_table->num_output_accum_bits / 8; |
| 66 | comp_table->output_accum[offset] = FIXED_HDR | bfinal; |
| 67 | comp_table->num_output_accum_bits = FIXED_HDR_SIZE; |
| 68 | |
| 69 | return 0; |
| 70 | } |
| 71 | |
| 72 | int iaa_aecs_init_fixed(void) |
| 73 | { |
| 74 | int ret; |
| 75 | |
| 76 | ret = add_iaa_compression_mode("fixed", |
| 77 | fixed_ll_sym, |
| 78 | sizeof(fixed_ll_sym), |
| 79 | fixed_d_sym, |
| 80 | sizeof(fixed_d_sym), |
Tom Zanussi | b190447 | 2023-12-05 15:25:26 -0600 | [diff] [blame] | 81 | init_fixed_mode, NULL); |
| 82 | if (!ret) |
| 83 | pr_debug("IAA fixed compression mode initialized\n"); |
| 84 | |
| 85 | return ret; |
| 86 | } |
| 87 | |
| 88 | void iaa_aecs_cleanup_fixed(void) |
| 89 | { |
| 90 | remove_iaa_compression_mode("fixed"); |
| 91 | } |