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8#include "compat.h"
9#include "regs.h"
10#include "desc.h"
11#include "error.h"
12
13#ifdef DEBUG
14#include <linux/highmem.h>
15
16void caam_dump_sg(const char *level, const char *prefix_str, int prefix_type,
17 int rowsize, int groupsize, struct scatterlist *sg,
18 size_t tlen, bool ascii)
19{
20 struct scatterlist *it;
21 void *it_page;
22 size_t len;
23 void *buf;
24
25 for (it = sg; it && tlen > 0 ; it = sg_next(sg)) {
26
27
28
29
30 it_page = kmap_atomic(sg_page(it));
31 if (unlikely(!it_page)) {
32 pr_err("caam_dump_sg: kmap failed\n");
33 return;
34 }
35
36 buf = it_page + it->offset;
37 len = min_t(size_t, tlen, it->length);
38 print_hex_dump(level, prefix_str, prefix_type, rowsize,
39 groupsize, buf, len, ascii);
40 tlen -= len;
41
42 kunmap_atomic(it_page);
43 }
44}
45#else
46void caam_dump_sg(const char *level, const char *prefix_str, int prefix_type,
47 int rowsize, int groupsize, struct scatterlist *sg,
48 size_t tlen, bool ascii)
49{}
50#endif
51EXPORT_SYMBOL(caam_dump_sg);
52
53static const struct {
54 u8 value;
55 const char *error_text;
56} desc_error_list[] = {
57 { 0x00, "No error." },
58 { 0x01, "SGT Length Error. The descriptor is trying to read more data than is contained in the SGT table." },
59 { 0x02, "SGT Null Entry Error." },
60 { 0x03, "Job Ring Control Error. There is a bad value in the Job Ring Control register." },
61 { 0x04, "Invalid Descriptor Command. The Descriptor Command field is invalid." },
62 { 0x05, "Reserved." },
63 { 0x06, "Invalid KEY Command" },
64 { 0x07, "Invalid LOAD Command" },
65 { 0x08, "Invalid STORE Command" },
66 { 0x09, "Invalid OPERATION Command" },
67 { 0x0A, "Invalid FIFO LOAD Command" },
68 { 0x0B, "Invalid FIFO STORE Command" },
69 { 0x0C, "Invalid MOVE/MOVE_LEN Command" },
70 { 0x0D, "Invalid JUMP Command. A nonlocal JUMP Command is invalid because the target is not a Job Header Command, or the jump is from a Trusted Descriptor to a Job Descriptor, or because the target Descriptor contains a Shared Descriptor." },
71 { 0x0E, "Invalid MATH Command" },
72 { 0x0F, "Invalid SIGNATURE Command" },
73 { 0x10, "Invalid Sequence Command. A SEQ IN PTR OR SEQ OUT PTR Command is invalid or a SEQ KEY, SEQ LOAD, SEQ FIFO LOAD, or SEQ FIFO STORE decremented the input or output sequence length below 0. This error may result if a built-in PROTOCOL Command has encountered a malformed PDU." },
74 { 0x11, "Skip data type invalid. The type must be 0xE or 0xF."},
75 { 0x12, "Shared Descriptor Header Error" },
76 { 0x13, "Header Error. Invalid length or parity, or certain other problems." },
77 { 0x14, "Burster Error. Burster has gotten to an illegal state" },
78 { 0x15, "Context Register Length Error. The descriptor is trying to read or write past the end of the Context Register. A SEQ LOAD or SEQ STORE with the VLF bit set was executed with too large a length in the variable length register (VSOL for SEQ STORE or VSIL for SEQ LOAD)." },
79 { 0x16, "DMA Error" },
80 { 0x17, "Reserved." },
81 { 0x1A, "Job failed due to JR reset" },
82 { 0x1B, "Job failed due to Fail Mode" },
83 { 0x1C, "DECO Watchdog timer timeout error" },
84 { 0x1D, "DECO tried to copy a key from another DECO but the other DECO's Key Registers were locked" },
85 { 0x1E, "DECO attempted to copy data from a DECO that had an unmasked Descriptor error" },
86 { 0x1F, "LIODN error. DECO was trying to share from itself or from another DECO but the two Non-SEQ LIODN values didn't match or the 'shared from' DECO's Descriptor required that the SEQ LIODNs be the same and they aren't." },
87 { 0x20, "DECO has completed a reset initiated via the DRR register" },
88 { 0x21, "Nonce error. When using EKT (CCM) key encryption option in the FIFO STORE Command, the Nonce counter reached its maximum value and this encryption mode can no longer be used." },
89 { 0x22, "Meta data is too large (> 511 bytes) for TLS decap (input frame; block ciphers) and IPsec decap (output frame, when doing the next header byte update) and DCRC (output frame)." },
90 { 0x23, "Read Input Frame error" },
91 { 0x24, "JDKEK, TDKEK or TDSK not loaded error" },
92 { 0x80, "DNR (do not run) error" },
93 { 0x81, "undefined protocol command" },
94 { 0x82, "invalid setting in PDB" },
95 { 0x83, "Anti-replay LATE error" },
96 { 0x84, "Anti-replay REPLAY error" },
97 { 0x85, "Sequence number overflow" },
98 { 0x86, "Sigver invalid signature" },
99 { 0x87, "DSA Sign Illegal test descriptor" },
100 { 0x88, "Protocol Format Error - A protocol has seen an error in the format of data received. When running RSA, this means that formatting with random padding was used, and did not follow the form: 0x00, 0x02, 8-to-N bytes of non-zero pad, 0x00, F data." },
101 { 0x89, "Protocol Size Error - A protocol has seen an error in size. When running RSA, pdb size N < (size of F) when no formatting is used; or pdb size N < (F + 11) when formatting is used." },
102 { 0xC1, "Blob Command error: Undefined mode" },
103 { 0xC2, "Blob Command error: Secure Memory Blob mode error" },
104 { 0xC4, "Blob Command error: Black Blob key or input size error" },
105 { 0xC5, "Blob Command error: Invalid key destination" },
106 { 0xC8, "Blob Command error: Trusted/Secure mode error" },
107 { 0xF0, "IPsec TTL or hop limit field either came in as 0, or was decremented to 0" },
108 { 0xF1, "3GPP HFN matches or exceeds the Threshold" },
109};
110
111static const char * const cha_id_list[] = {
112 "",
113 "AES",
114 "DES",
115 "ARC4",
116 "MDHA",
117 "RNG",
118 "SNOW f8",
119 "Kasumi f8/9",
120 "PKHA",
121 "CRCA",
122 "SNOW f9",
123 "ZUCE",
124 "ZUCA",
125};
126
127static const char * const err_id_list[] = {
128 "No error.",
129 "Mode error.",
130 "Data size error.",
131 "Key size error.",
132 "PKHA A memory size error.",
133 "PKHA B memory size error.",
134 "Data arrived out of sequence error.",
135 "PKHA divide-by-zero error.",
136 "PKHA modulus even error.",
137 "DES key parity error.",
138 "ICV check failed.",
139 "Hardware error.",
140 "Unsupported CCM AAD size.",
141 "Class 1 CHA is not reset",
142 "Invalid CHA combination was selected",
143 "Invalid CHA selected.",
144};
145
146static const char * const rng_err_id_list[] = {
147 "",
148 "",
149 "",
150 "Instantiate",
151 "Not instantiated",
152 "Test instantiate",
153 "Prediction resistance",
154 "Prediction resistance and test request",
155 "Uninstantiate",
156 "Secure key generation",
157};
158
159static void report_ccb_status(struct device *jrdev, const u32 status,
160 const char *error)
161{
162 u8 cha_id = (status & JRSTA_CCBERR_CHAID_MASK) >>
163 JRSTA_CCBERR_CHAID_SHIFT;
164 u8 err_id = status & JRSTA_CCBERR_ERRID_MASK;
165 u8 idx = (status & JRSTA_DECOERR_INDEX_MASK) >>
166 JRSTA_DECOERR_INDEX_SHIFT;
167 char *idx_str;
168 const char *cha_str = "unidentified cha_id value 0x";
169 char cha_err_code[3] = { 0 };
170 const char *err_str = "unidentified err_id value 0x";
171 char err_err_code[3] = { 0 };
172
173 if (status & JRSTA_DECOERR_JUMP)
174 idx_str = "jump tgt desc idx";
175 else
176 idx_str = "desc idx";
177
178 if (cha_id < ARRAY_SIZE(cha_id_list))
179 cha_str = cha_id_list[cha_id];
180 else
181 snprintf(cha_err_code, sizeof(cha_err_code), "%02x", cha_id);
182
183 if ((cha_id << JRSTA_CCBERR_CHAID_SHIFT) == JRSTA_CCBERR_CHAID_RNG &&
184 err_id < ARRAY_SIZE(rng_err_id_list) &&
185 strlen(rng_err_id_list[err_id])) {
186
187 err_str = rng_err_id_list[err_id];
188 } else {
189 err_str = err_id_list[err_id];
190 }
191
192
193
194
195
196 if (err_id != JRSTA_CCBERR_ERRID_ICVCHK)
197 dev_err(jrdev, "%08x: %s: %s %d: %s%s: %s%s\n",
198 status, error, idx_str, idx,
199 cha_str, cha_err_code,
200 err_str, err_err_code);
201}
202
203static void report_jump_status(struct device *jrdev, const u32 status,
204 const char *error)
205{
206 dev_err(jrdev, "%08x: %s: %s() not implemented\n",
207 status, error, __func__);
208}
209
210static void report_deco_status(struct device *jrdev, const u32 status,
211 const char *error)
212{
213 u8 err_id = status & JRSTA_DECOERR_ERROR_MASK;
214 u8 idx = (status & JRSTA_DECOERR_INDEX_MASK) >>
215 JRSTA_DECOERR_INDEX_SHIFT;
216 char *idx_str;
217 const char *err_str = "unidentified error value 0x";
218 char err_err_code[3] = { 0 };
219 int i;
220
221 if (status & JRSTA_DECOERR_JUMP)
222 idx_str = "jump tgt desc idx";
223 else
224 idx_str = "desc idx";
225
226 for (i = 0; i < ARRAY_SIZE(desc_error_list); i++)
227 if (desc_error_list[i].value == err_id)
228 break;
229
230 if (i != ARRAY_SIZE(desc_error_list) && desc_error_list[i].error_text)
231 err_str = desc_error_list[i].error_text;
232 else
233 snprintf(err_err_code, sizeof(err_err_code), "%02x", err_id);
234
235 dev_err(jrdev, "%08x: %s: %s %d: %s%s\n",
236 status, error, idx_str, idx, err_str, err_err_code);
237}
238
239static void report_jr_status(struct device *jrdev, const u32 status,
240 const char *error)
241{
242 dev_err(jrdev, "%08x: %s: %s() not implemented\n",
243 status, error, __func__);
244}
245
246static void report_cond_code_status(struct device *jrdev, const u32 status,
247 const char *error)
248{
249 dev_err(jrdev, "%08x: %s: %s() not implemented\n",
250 status, error, __func__);
251}
252
253void caam_jr_strstatus(struct device *jrdev, u32 status)
254{
255 static const struct stat_src {
256 void (*report_ssed)(struct device *jrdev, const u32 status,
257 const char *error);
258 const char *error;
259 } status_src[16] = {
260 { NULL, "No error" },
261 { NULL, NULL },
262 { report_ccb_status, "CCB" },
263 { report_jump_status, "Jump" },
264 { report_deco_status, "DECO" },
265 { NULL, "Queue Manager Interface" },
266 { report_jr_status, "Job Ring" },
267 { report_cond_code_status, "Condition Code" },
268 { NULL, NULL },
269 { NULL, NULL },
270 { NULL, NULL },
271 { NULL, NULL },
272 { NULL, NULL },
273 { NULL, NULL },
274 { NULL, NULL },
275 { NULL, NULL },
276 };
277 u32 ssrc = status >> JRSTA_SSRC_SHIFT;
278 const char *error = status_src[ssrc].error;
279
280
281
282
283
284 if (status_src[ssrc].report_ssed)
285 status_src[ssrc].report_ssed(jrdev, status, error);
286 else if (error)
287 dev_err(jrdev, "%d: %s\n", ssrc, error);
288 else
289 dev_err(jrdev, "%d: unknown error source\n", ssrc);
290}
291EXPORT_SYMBOL(caam_jr_strstatus);
292
