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chafsr.h
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1 #ifndef _SPARC64_CHAFSR_H
2 #define _SPARC64_CHAFSR_H
3 
4 /* Cheetah Asynchronous Fault Status register, ASI=0x4C VA<63:0>=0x0 */
5 
6 /* Comments indicate which processor variants on which the bit definition
7  * is valid. Codes are:
8  * ch --> cheetah
9  * ch+ --> cheetah plus
10  * jp --> jalapeno
11  */
12 
13 /* All bits of this register except M_SYNDROME and E_SYNDROME are
14  * read, write 1 to clear. M_SYNDROME and E_SYNDROME are read-only.
15  */
16 
17 /* Software bit set by linux trap handlers to indicate that the trap was
18  * signalled at %tl >= 1.
19  */
20 #define CHAFSR_TL1 (1UL << 63UL) /* n/a */
21 
22 /* Unmapped error from system bus for prefetch queue or
23  * store queue read operation
24  */
25 #define CHPAFSR_DTO (1UL << 59UL) /* ch+ */
26 
27 /* Bus error from system bus for prefetch queue or store queue
28  * read operation
29  */
30 #define CHPAFSR_DBERR (1UL << 58UL) /* ch+ */
31 
32 /* Hardware corrected E-cache Tag ECC error */
33 #define CHPAFSR_THCE (1UL << 57UL) /* ch+ */
34 /* System interface protocol error, hw timeout caused */
35 #define JPAFSR_JETO (1UL << 57UL) /* jp */
36 
37 /* SW handled correctable E-cache Tag ECC error */
38 #define CHPAFSR_TSCE (1UL << 56UL) /* ch+ */
39 /* Parity error on system snoop results */
40 #define JPAFSR_SCE (1UL << 56UL) /* jp */
41 
42 /* Uncorrectable E-cache Tag ECC error */
43 #define CHPAFSR_TUE (1UL << 55UL) /* ch+ */
44 /* System interface protocol error, illegal command detected */
45 #define JPAFSR_JEIC (1UL << 55UL) /* jp */
46 
47 /* Uncorrectable system bus data ECC error due to prefetch
48  * or store fill request
49  */
50 #define CHPAFSR_DUE (1UL << 54UL) /* ch+ */
51 /* System interface protocol error, illegal ADTYPE detected */
52 #define JPAFSR_JEIT (1UL << 54UL) /* jp */
53 
54 /* Multiple errors of the same type have occurred. This bit is set when
55  * an uncorrectable error or a SW correctable error occurs and the status
56  * bit to report that error is already set. When multiple errors of
57  * different types are indicated by setting multiple status bits.
58  *
59  * This bit is not set if multiple HW corrected errors with the same
60  * status bit occur, only uncorrectable and SW correctable ones have
61  * this behavior.
62  *
63  * This bit is not set when multiple ECC errors happen within a single
64  * 64-byte system bus transaction. Only the first ECC error in a 16-byte
65  * subunit will be logged. All errors in subsequent 16-byte subunits
66  * from the same 64-byte transaction are ignored.
67  */
68 #define CHAFSR_ME (1UL << 53UL) /* ch,ch+,jp */
69 
70 /* Privileged state error has occurred. This is a capture of PSTATE.PRIV
71  * at the time the error is detected.
72  */
73 #define CHAFSR_PRIV (1UL << 52UL) /* ch,ch+,jp */
74 
75 /* The following bits 51 (CHAFSR_PERR) to 33 (CHAFSR_CE) are sticky error
76  * bits and record the most recently detected errors. Bits accumulate
77  * errors that have been detected since the last write to clear the bit.
78  */
79 
80 /* System interface protocol error. The processor asserts its' ERROR
81  * pin when this event occurs and it also logs a specific cause code
82  * into a JTAG scannable flop.
83  */
84 #define CHAFSR_PERR (1UL << 51UL) /* ch,ch+,jp */
85 
86 /* Internal processor error. The processor asserts its' ERROR
87  * pin when this event occurs and it also logs a specific cause code
88  * into a JTAG scannable flop.
89  */
90 #define CHAFSR_IERR (1UL << 50UL) /* ch,ch+,jp */
91 
92 /* System request parity error on incoming address */
93 #define CHAFSR_ISAP (1UL << 49UL) /* ch,ch+,jp */
94 
95 /* HW Corrected system bus MTAG ECC error */
96 #define CHAFSR_EMC (1UL << 48UL) /* ch,ch+ */
97 /* Parity error on L2 cache tag SRAM */
98 #define JPAFSR_ETP (1UL << 48UL) /* jp */
99 
100 /* Uncorrectable system bus MTAG ECC error */
101 #define CHAFSR_EMU (1UL << 47UL) /* ch,ch+ */
102 /* Out of range memory error has occurred */
103 #define JPAFSR_OM (1UL << 47UL) /* jp */
104 
105 /* HW Corrected system bus data ECC error for read of interrupt vector */
106 #define CHAFSR_IVC (1UL << 46UL) /* ch,ch+ */
107 /* Error due to unsupported store */
108 #define JPAFSR_UMS (1UL << 46UL) /* jp */
109 
110 /* Uncorrectable system bus data ECC error for read of interrupt vector */
111 #define CHAFSR_IVU (1UL << 45UL) /* ch,ch+,jp */
112 
113 /* Unmapped error from system bus */
114 #define CHAFSR_TO (1UL << 44UL) /* ch,ch+,jp */
115 
116 /* Bus error response from system bus */
117 #define CHAFSR_BERR (1UL << 43UL) /* ch,ch+,jp */
118 
119 /* SW Correctable E-cache ECC error for instruction fetch or data access
120  * other than block load.
121  */
122 #define CHAFSR_UCC (1UL << 42UL) /* ch,ch+,jp */
123 
124 /* Uncorrectable E-cache ECC error for instruction fetch or data access
125  * other than block load.
126  */
127 #define CHAFSR_UCU (1UL << 41UL) /* ch,ch+,jp */
128 
129 /* Copyout HW Corrected ECC error */
130 #define CHAFSR_CPC (1UL << 40UL) /* ch,ch+,jp */
131 
132 /* Copyout Uncorrectable ECC error */
133 #define CHAFSR_CPU (1UL << 39UL) /* ch,ch+,jp */
134 
135 /* HW Corrected ECC error from E-cache for writeback */
136 #define CHAFSR_WDC (1UL << 38UL) /* ch,ch+,jp */
137 
138 /* Uncorrectable ECC error from E-cache for writeback */
139 #define CHAFSR_WDU (1UL << 37UL) /* ch,ch+,jp */
140 
141 /* HW Corrected ECC error from E-cache for store merge or block load */
142 #define CHAFSR_EDC (1UL << 36UL) /* ch,ch+,jp */
143 
144 /* Uncorrectable ECC error from E-cache for store merge or block load */
145 #define CHAFSR_EDU (1UL << 35UL) /* ch,ch+,jp */
146 
147 /* Uncorrectable system bus data ECC error for read of memory or I/O */
148 #define CHAFSR_UE (1UL << 34UL) /* ch,ch+,jp */
149 
150 /* HW Corrected system bus data ECC error for read of memory or I/O */
151 #define CHAFSR_CE (1UL << 33UL) /* ch,ch+,jp */
152 
153 /* Uncorrectable ECC error from remote cache/memory */
154 #define JPAFSR_RUE (1UL << 32UL) /* jp */
155 
156 /* Correctable ECC error from remote cache/memory */
157 #define JPAFSR_RCE (1UL << 31UL) /* jp */
158 
159 /* JBUS parity error on returned read data */
160 #define JPAFSR_BP (1UL << 30UL) /* jp */
161 
162 /* JBUS parity error on data for writeback or block store */
163 #define JPAFSR_WBP (1UL << 29UL) /* jp */
164 
165 /* Foreign read to DRAM incurring correctable ECC error */
166 #define JPAFSR_FRC (1UL << 28UL) /* jp */
167 
168 /* Foreign read to DRAM incurring uncorrectable ECC error */
169 #define JPAFSR_FRU (1UL << 27UL) /* jp */
170 
171 #define CHAFSR_ERRORS (CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP | CHAFSR_EMC | \
172  CHAFSR_EMU | CHAFSR_IVC | CHAFSR_IVU | CHAFSR_TO | \
173  CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | CHAFSR_CPC | \
174  CHAFSR_CPU | CHAFSR_WDC | CHAFSR_WDU | CHAFSR_EDC | \
175  CHAFSR_EDU | CHAFSR_UE | CHAFSR_CE)
176 #define CHPAFSR_ERRORS (CHPAFSR_DTO | CHPAFSR_DBERR | CHPAFSR_THCE | \
177  CHPAFSR_TSCE | CHPAFSR_TUE | CHPAFSR_DUE | \
178  CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP | CHAFSR_EMC | \
179  CHAFSR_EMU | CHAFSR_IVC | CHAFSR_IVU | CHAFSR_TO | \
180  CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | CHAFSR_CPC | \
181  CHAFSR_CPU | CHAFSR_WDC | CHAFSR_WDU | CHAFSR_EDC | \
182  CHAFSR_EDU | CHAFSR_UE | CHAFSR_CE)
183 #define JPAFSR_ERRORS (JPAFSR_JETO | JPAFSR_SCE | JPAFSR_JEIC | \
184  JPAFSR_JEIT | CHAFSR_PERR | CHAFSR_IERR | \
185  CHAFSR_ISAP | JPAFSR_ETP | JPAFSR_OM | \
186  JPAFSR_UMS | CHAFSR_IVU | CHAFSR_TO | \
187  CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | \
188  CHAFSR_CPC | CHAFSR_CPU | CHAFSR_WDC | \
189  CHAFSR_WDU | CHAFSR_EDC | CHAFSR_EDU | \
190  CHAFSR_UE | CHAFSR_CE | JPAFSR_RUE | \
191  JPAFSR_RCE | JPAFSR_BP | JPAFSR_WBP | \
192  JPAFSR_FRC | JPAFSR_FRU)
193 
194 /* Active JBUS request signal when error occurred */
195 #define JPAFSR_JBREQ (0x7UL << 24UL) /* jp */
196 #define JPAFSR_JBREQ_SHIFT 24UL
197 
198 /* L2 cache way information */
199 #define JPAFSR_ETW (0x3UL << 22UL) /* jp */
200 #define JPAFSR_ETW_SHIFT 22UL
201 
202 /* System bus MTAG ECC syndrome. This field captures the status of the
203  * first occurrence of the highest-priority error according to the M_SYND
204  * overwrite policy. After the AFSR sticky bit, corresponding to the error
205  * for which the M_SYND is reported, is cleared, the contents of the M_SYND
206  * field will be unchanged by will be unfrozen for further error capture.
207  */
208 #define CHAFSR_M_SYNDROME (0xfUL << 16UL) /* ch,ch+,jp */
209 #define CHAFSR_M_SYNDROME_SHIFT 16UL
210 
211 /* Agenid Id of the foreign device causing the UE/CE errors */
212 #define JPAFSR_AID (0x1fUL << 9UL) /* jp */
213 #define JPAFSR_AID_SHIFT 9UL
214 
215 /* System bus or E-cache data ECC syndrome. This field captures the status
216  * of the first occurrence of the highest-priority error according to the
217  * E_SYND overwrite policy. After the AFSR sticky bit, corresponding to the
218  * error for which the E_SYND is reported, is cleare, the contents of the E_SYND
219  * field will be unchanged but will be unfrozen for further error capture.
220  */
221 #define CHAFSR_E_SYNDROME (0x1ffUL << 0UL) /* ch,ch+,jp */
222 #define CHAFSR_E_SYNDROME_SHIFT 0UL
223 
224 /* The AFSR must be explicitly cleared by software, it is not cleared automatically
225  * by a read. Writes to bits <51:33> with bits set will clear the corresponding
226  * bits in the AFSR. Bits associated with disrupting traps must be cleared before
227  * interrupts are re-enabled to prevent multiple traps for the same error. I.e.
228  * PSTATE.IE and AFSR bits control delivery of disrupting traps.
229  *
230  * Since there is only one AFAR, when multiple events have been logged by the
231  * bits in the AFSR, at most one of these events will have its status captured
232  * in the AFAR. The highest priority of those event bits will get AFAR logging.
233  * The AFAR will be unlocked and available to capture the address of another event
234  * as soon as the one bit in AFSR that corresponds to the event logged in AFAR is
235  * cleared. For example, if AFSR.CE is detected, then AFSR.UE (which overwrites
236  * the AFAR), and AFSR.UE is cleared by not AFSR.CE, then the AFAR will be unlocked
237  * and ready for another event, even though AFSR.CE is still set. The same rules
238  * also apply to the M_SYNDROME and E_SYNDROME fields of the AFSR.
239  */
240 
241 #endif /* _SPARC64_CHAFSR_H */