Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) #ifndef _ASM_POWERPC_DTL_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #define _ASM_POWERPC_DTL_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #include <asm/lppaca.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <linux/spinlock_types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * Layout of entries in the hypervisor's dispatch trace log buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) struct dtl_entry {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	u8	dispatch_reason;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	u8	preempt_reason;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	__be16	processor_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	__be32	enqueue_to_dispatch_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	__be32	ready_to_enqueue_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	__be32	waiting_to_ready_time;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	__be64	timebase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	__be64	fault_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	__be64	srr0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	__be64	srr1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define DISPATCH_LOG_BYTES	4096	/* bytes per cpu */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define N_DISPATCH_LOG		(DISPATCH_LOG_BYTES / sizeof(struct dtl_entry))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)  * Dispatch trace log event enable mask:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  *   0x1: voluntary virtual processor waits
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  *   0x2: time-slice preempts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)  *   0x4: virtual partition memory page faults
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define DTL_LOG_CEDE		0x1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define DTL_LOG_PREEMPT		0x2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define DTL_LOG_FAULT		0x4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define DTL_LOG_ALL		(DTL_LOG_CEDE | DTL_LOG_PREEMPT | DTL_LOG_FAULT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) extern struct kmem_cache *dtl_cache;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) extern rwlock_t dtl_access_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)  * When CONFIG_VIRT_CPU_ACCOUNTING_NATIVE = y, the cpu accounting code controls
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)  * reading from the dispatch trace log.  If other code wants to consume
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)  * DTL entries, it can set this pointer to a function that will get
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)  * called once for each DTL entry that gets processed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) extern void (*dtl_consumer)(struct dtl_entry *entry, u64 index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) extern void register_dtl_buffer(int cpu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) extern void alloc_dtl_buffers(unsigned long *time_limit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) extern long hcall_vphn(unsigned long cpu, u64 flags, __be32 *associativity);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #endif /* _ASM_POWERPC_DTL_H */