include/linux/pstore.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
3  * Persistent Storage - pstore.h
35 	/* PPC64-specific partition types */
51  * struct pstore_record - details of a pstore record entry
54  * @id:		per-type unique identifier for record
85  * struct pstore_info - backend pstore driver structure
105  * @data:	backend-private pointer passed back during callbacks
115  *	Returns 0 on success, and non-zero on error.
124  *	Returns 0 on success, and non-zero on error. (Though pstore will
137  *	Returns record size on success, zero when no more records are
154  *	Returns 0 on success, and non-zero on error.
164  *	Returns 0 on success, and non-zero on error.
174  *	Returns 0 on success, and non-zero on error.
227 #define TS_CPU_MASK (BIT(TS_CPU_SHIFT) - 1)
238 	rec->ip |= cpu;  in pstore_ftrace_encode_cpu()
244 	return rec->ip & PSTORE_CPU_IN_IP;  in pstore_ftrace_decode_cpu()
250 	return rec->ts;  in pstore_ftrace_read_timestamp()
256 	rec->ts = val;  in pstore_ftrace_write_timestamp()
262 	rec->ts &= ~(TS_CPU_MASK);  in pstore_ftrace_encode_cpu()
263 	rec->ts |= cpu;  in pstore_ftrace_encode_cpu()
269 	return rec->ts & TS_CPU_MASK;  in pstore_ftrace_decode_cpu()
275 	return rec->ts >> TS_CPU_SHIFT;  in pstore_ftrace_read_timestamp()
281 	rec->ts = (rec->ts & TS_CPU_MASK) | (val << TS_CPU_SHIFT);  in pstore_ftrace_write_timestamp()