| 1 | // SPDX-License-Identifier: Zlib |
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| 2 | /* dfltcc.c - SystemZ DEFLATE CONVERSION CALL support. */ |
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| 3 | |
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| 4 | #include <linux/export.h> |
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| 5 | #include <linux/module.h> |
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| 6 | #include "dfltcc_util.h" |
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| 7 | #include "dfltcc.h" |
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| 8 | |
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| 9 | char *oesc_msg( |
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| 10 | char *buf, |
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| 11 | int oesc |
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| 12 | ) |
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| 13 | { |
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| 14 | if (oesc == 0x00) |
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| 15 | return NULL; /* Successful completion */ |
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| 16 | else { |
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| 17 | #ifdef STATIC |
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| 18 | return NULL; /* Ignore for pre-boot decompressor */ |
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| 19 | #else |
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| 20 | sprintf(buf, fmt: "Operation-Ending-Supplemental Code is 0x%.2X" , oesc); |
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| 21 | return buf; |
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| 22 | #endif |
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| 23 | } |
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| 24 | } |
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| 25 | |
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| 26 | void dfltcc_reset_state(struct dfltcc_state *dfltcc_state) { |
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| 27 | /* Initialize available functions */ |
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| 28 | if (is_dfltcc_enabled()) { |
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| 29 | dfltcc(DFLTCC_QAF, param: &dfltcc_state->param, NULL, NULL, NULL, NULL, NULL); |
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| 30 | memmove(&dfltcc_state->af, &dfltcc_state->param, sizeof(dfltcc_state->af)); |
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| 31 | } else |
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| 32 | memset(&dfltcc_state->af, 0, sizeof(dfltcc_state->af)); |
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| 33 | |
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| 34 | /* Initialize parameter block */ |
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| 35 | memset(&dfltcc_state->param, 0, sizeof(dfltcc_state->param)); |
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| 36 | dfltcc_state->param.nt = 1; |
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| 37 | dfltcc_state->param.ribm = DFLTCC_RIBM; |
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| 38 | } |
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| 39 | |
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| 40 | MODULE_LICENSE("GPL" ); |
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| 41 | |
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