xref: /openbmc/linux/arch/sparc/include/asm/chafsr.h (revision b2441318)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _SPARC64_CHAFSR_H
3 #define _SPARC64_CHAFSR_H
4 
5 /* Cheetah Asynchronous Fault Status register, ASI=0x4C VA<63:0>=0x0 */
6 
7 /* Comments indicate which processor variants on which the bit definition
8  * is valid.  Codes are:
9  * ch	-->	cheetah
10  * ch+	-->	cheetah plus
11  * jp	-->	jalapeno
12  */
13 
14 /* All bits of this register except M_SYNDROME and E_SYNDROME are
15  * read, write 1 to clear.  M_SYNDROME and E_SYNDROME are read-only.
16  */
17 
18 /* Software bit set by linux trap handlers to indicate that the trap was
19  * signalled at %tl >= 1.
20  */
21 #define CHAFSR_TL1		(1UL << 63UL) /* n/a */
22 
23 /* Unmapped error from system bus for prefetch queue or
24  * store queue read operation
25  */
26 #define CHPAFSR_DTO		(1UL << 59UL) /* ch+ */
27 
28 /* Bus error from system bus for prefetch queue or store queue
29  * read operation
30  */
31 #define CHPAFSR_DBERR		(1UL << 58UL) /* ch+ */
32 
33 /* Hardware corrected E-cache Tag ECC error */
34 #define CHPAFSR_THCE		(1UL << 57UL) /* ch+ */
35 /* System interface protocol error, hw timeout caused */
36 #define JPAFSR_JETO		(1UL << 57UL) /* jp */
37 
38 /* SW handled correctable E-cache Tag ECC error */
39 #define CHPAFSR_TSCE		(1UL << 56UL) /* ch+ */
40 /* Parity error on system snoop results */
41 #define JPAFSR_SCE		(1UL << 56UL) /* jp */
42 
43 /* Uncorrectable E-cache Tag ECC error */
44 #define CHPAFSR_TUE		(1UL << 55UL) /* ch+ */
45 /* System interface protocol error, illegal command detected */
46 #define JPAFSR_JEIC		(1UL << 55UL) /* jp */
47 
48 /* Uncorrectable system bus data ECC error due to prefetch
49  * or store fill request
50  */
51 #define CHPAFSR_DUE		(1UL << 54UL) /* ch+ */
52 /* System interface protocol error, illegal ADTYPE detected */
53 #define JPAFSR_JEIT		(1UL << 54UL) /* jp */
54 
55 /* Multiple errors of the same type have occurred.  This bit is set when
56  * an uncorrectable error or a SW correctable error occurs and the status
57  * bit to report that error is already set.  When multiple errors of
58  * different types are indicated by setting multiple status bits.
59  *
60  * This bit is not set if multiple HW corrected errors with the same
61  * status bit occur, only uncorrectable and SW correctable ones have
62  * this behavior.
63  *
64  * This bit is not set when multiple ECC errors happen within a single
65  * 64-byte system bus transaction.  Only the first ECC error in a 16-byte
66  * subunit will be logged.  All errors in subsequent 16-byte subunits
67  * from the same 64-byte transaction are ignored.
68  */
69 #define CHAFSR_ME		(1UL << 53UL) /* ch,ch+,jp */
70 
71 /* Privileged state error has occurred.  This is a capture of PSTATE.PRIV
72  * at the time the error is detected.
73  */
74 #define CHAFSR_PRIV		(1UL << 52UL) /* ch,ch+,jp */
75 
76 /* The following bits 51 (CHAFSR_PERR) to 33 (CHAFSR_CE) are sticky error
77  * bits and record the most recently detected errors.  Bits accumulate
78  * errors that have been detected since the last write to clear the bit.
79  */
80 
81 /* System interface protocol error.  The processor asserts its' ERROR
82  * pin when this event occurs and it also logs a specific cause code
83  * into a JTAG scannable flop.
84  */
85 #define CHAFSR_PERR		(1UL << 51UL) /* ch,ch+,jp */
86 
87 /* Internal processor error.  The processor asserts its' ERROR
88  * pin when this event occurs and it also logs a specific cause code
89  * into a JTAG scannable flop.
90  */
91 #define CHAFSR_IERR		(1UL << 50UL) /* ch,ch+,jp */
92 
93 /* System request parity error on incoming address */
94 #define CHAFSR_ISAP		(1UL << 49UL) /* ch,ch+,jp */
95 
96 /* HW Corrected system bus MTAG ECC error */
97 #define CHAFSR_EMC		(1UL << 48UL) /* ch,ch+ */
98 /* Parity error on L2 cache tag SRAM */
99 #define JPAFSR_ETP		(1UL << 48UL) /* jp */
100 
101 /* Uncorrectable system bus MTAG ECC error */
102 #define CHAFSR_EMU		(1UL << 47UL) /* ch,ch+ */
103 /* Out of range memory error has occurred */
104 #define JPAFSR_OM		(1UL << 47UL) /* jp */
105 
106 /* HW Corrected system bus data ECC error for read of interrupt vector */
107 #define CHAFSR_IVC		(1UL << 46UL) /* ch,ch+ */
108 /* Error due to unsupported store */
109 #define JPAFSR_UMS		(1UL << 46UL) /* jp */
110 
111 /* Uncorrectable system bus data ECC error for read of interrupt vector */
112 #define CHAFSR_IVU		(1UL << 45UL) /* ch,ch+,jp */
113 
114 /* Unmapped error from system bus */
115 #define CHAFSR_TO		(1UL << 44UL) /* ch,ch+,jp */
116 
117 /* Bus error response from system bus */
118 #define CHAFSR_BERR		(1UL << 43UL) /* ch,ch+,jp */
119 
120 /* SW Correctable E-cache ECC error for instruction fetch or data access
121  * other than block load.
122  */
123 #define CHAFSR_UCC		(1UL << 42UL) /* ch,ch+,jp */
124 
125 /* Uncorrectable E-cache ECC error for instruction fetch or data access
126  * other than block load.
127  */
128 #define CHAFSR_UCU		(1UL << 41UL) /* ch,ch+,jp */
129 
130 /* Copyout HW Corrected ECC error */
131 #define CHAFSR_CPC		(1UL << 40UL) /* ch,ch+,jp */
132 
133 /* Copyout Uncorrectable ECC error */
134 #define CHAFSR_CPU		(1UL << 39UL) /* ch,ch+,jp */
135 
136 /* HW Corrected ECC error from E-cache for writeback */
137 #define CHAFSR_WDC		(1UL << 38UL) /* ch,ch+,jp */
138 
139 /* Uncorrectable ECC error from E-cache for writeback */
140 #define CHAFSR_WDU		(1UL << 37UL) /* ch,ch+,jp */
141 
142 /* HW Corrected ECC error from E-cache for store merge or block load */
143 #define CHAFSR_EDC		(1UL << 36UL) /* ch,ch+,jp */
144 
145 /* Uncorrectable ECC error from E-cache for store merge or block load */
146 #define CHAFSR_EDU		(1UL << 35UL) /* ch,ch+,jp */
147 
148 /* Uncorrectable system bus data ECC error for read of memory or I/O */
149 #define CHAFSR_UE		(1UL << 34UL) /* ch,ch+,jp */
150 
151 /* HW Corrected system bus data ECC error for read of memory or I/O */
152 #define CHAFSR_CE		(1UL << 33UL) /* ch,ch+,jp */
153 
154 /* Uncorrectable ECC error from remote cache/memory */
155 #define JPAFSR_RUE		(1UL << 32UL) /* jp */
156 
157 /* Correctable ECC error from remote cache/memory */
158 #define JPAFSR_RCE		(1UL << 31UL) /* jp */
159 
160 /* JBUS parity error on returned read data */
161 #define JPAFSR_BP		(1UL << 30UL) /* jp */
162 
163 /* JBUS parity error on data for writeback or block store */
164 #define JPAFSR_WBP		(1UL << 29UL) /* jp */
165 
166 /* Foreign read to DRAM incurring correctable ECC error */
167 #define JPAFSR_FRC		(1UL << 28UL) /* jp */
168 
169 /* Foreign read to DRAM incurring uncorrectable ECC error */
170 #define JPAFSR_FRU		(1UL << 27UL) /* jp */
171 
172 #define CHAFSR_ERRORS		(CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP | CHAFSR_EMC | \
173 				 CHAFSR_EMU | CHAFSR_IVC | CHAFSR_IVU | CHAFSR_TO | \
174 				 CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | CHAFSR_CPC | \
175 				 CHAFSR_CPU | CHAFSR_WDC | CHAFSR_WDU | CHAFSR_EDC | \
176 				 CHAFSR_EDU | CHAFSR_UE | CHAFSR_CE)
177 #define CHPAFSR_ERRORS		(CHPAFSR_DTO | CHPAFSR_DBERR | CHPAFSR_THCE | \
178 				 CHPAFSR_TSCE | CHPAFSR_TUE | CHPAFSR_DUE | \
179 				 CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP | CHAFSR_EMC | \
180 				 CHAFSR_EMU | CHAFSR_IVC | CHAFSR_IVU | CHAFSR_TO | \
181 				 CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | CHAFSR_CPC | \
182 				 CHAFSR_CPU | CHAFSR_WDC | CHAFSR_WDU | CHAFSR_EDC | \
183 				 CHAFSR_EDU | CHAFSR_UE | CHAFSR_CE)
184 #define JPAFSR_ERRORS		(JPAFSR_JETO | JPAFSR_SCE | JPAFSR_JEIC | \
185 				 JPAFSR_JEIT | CHAFSR_PERR | CHAFSR_IERR | \
186 				 CHAFSR_ISAP | JPAFSR_ETP | JPAFSR_OM | \
187 				 JPAFSR_UMS | CHAFSR_IVU | CHAFSR_TO | \
188 				 CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | \
189 				 CHAFSR_CPC | CHAFSR_CPU | CHAFSR_WDC | \
190 				 CHAFSR_WDU | CHAFSR_EDC | CHAFSR_EDU | \
191 				 CHAFSR_UE | CHAFSR_CE | JPAFSR_RUE | \
192 				 JPAFSR_RCE | JPAFSR_BP | JPAFSR_WBP | \
193 				 JPAFSR_FRC | JPAFSR_FRU)
194 
195 /* Active JBUS request signal when error occurred */
196 #define JPAFSR_JBREQ		(0x7UL << 24UL) /* jp */
197 #define JPAFSR_JBREQ_SHIFT	24UL
198 
199 /* L2 cache way information */
200 #define JPAFSR_ETW		(0x3UL << 22UL) /* jp */
201 #define JPAFSR_ETW_SHIFT	22UL
202 
203 /* System bus MTAG ECC syndrome.  This field captures the status of the
204  * first occurrence of the highest-priority error according to the M_SYND
205  * overwrite policy.  After the AFSR sticky bit, corresponding to the error
206  * for which the M_SYND is reported, is cleared, the contents of the M_SYND
207  * field will be unchanged by will be unfrozen for further error capture.
208  */
209 #define CHAFSR_M_SYNDROME	(0xfUL << 16UL) /* ch,ch+,jp */
210 #define CHAFSR_M_SYNDROME_SHIFT	16UL
211 
212 /* Agenid Id of the foreign device causing the UE/CE errors */
213 #define JPAFSR_AID		(0x1fUL << 9UL) /* jp */
214 #define JPAFSR_AID_SHIFT	9UL
215 
216 /* System bus or E-cache data ECC syndrome.  This field captures the status
217  * of the first occurrence of the highest-priority error according to the
218  * E_SYND overwrite policy.  After the AFSR sticky bit, corresponding to the
219  * error for which the E_SYND is reported, is cleare, the contents of the E_SYND
220  * field will be unchanged but will be unfrozen for further error capture.
221  */
222 #define CHAFSR_E_SYNDROME	(0x1ffUL << 0UL) /* ch,ch+,jp */
223 #define CHAFSR_E_SYNDROME_SHIFT	0UL
224 
225 /* The AFSR must be explicitly cleared by software, it is not cleared automatically
226  * by a read.  Writes to bits <51:33> with bits set will clear the corresponding
227  * bits in the AFSR.  Bits associated with disrupting traps must be cleared before
228  * interrupts are re-enabled to prevent multiple traps for the same error.  I.e.
229  * PSTATE.IE and AFSR bits control delivery of disrupting traps.
230  *
231  * Since there is only one AFAR, when multiple events have been logged by the
232  * bits in the AFSR, at most one of these events will have its status captured
233  * in the AFAR.  The highest priority of those event bits will get AFAR logging.
234  * The AFAR will be unlocked and available to capture the address of another event
235  * as soon as the one bit in AFSR that corresponds to the event logged in AFAR is
236  * cleared.  For example, if AFSR.CE is detected, then AFSR.UE (which overwrites
237  * the AFAR), and AFSR.UE is cleared by not AFSR.CE, then the AFAR will be unlocked
238  * and ready for another event, even though AFSR.CE is still set.  The same rules
239  * also apply to the M_SYNDROME and E_SYNDROME fields of the AFSR.
240  */
241 
242 #endif /* _SPARC64_CHAFSR_H */
243