| #ifndef _ASM_POWERPC_DTL_H | |
| #define _ASM_POWERPC_DTL_H | |
| #include <linux/rwsem.h> | |
| #include <asm/lppaca.h> | |
| /* | |
| * Layout of entries in the hypervisor's dispatch trace log buffer. | |
| */ | |
| struct dtl_entry { | |
| u8 dispatch_reason; | |
| u8 preempt_reason; | |
| __be16 processor_id; | |
| __be32 enqueue_to_dispatch_time; | |
| __be32 ready_to_enqueue_time; | |
| __be32 waiting_to_ready_time; | |
| __be64 timebase; | |
| __be64 fault_addr; | |
| __be64 srr0; | |
| __be64 srr1; | |
| }; | |
| #define DISPATCH_LOG_BYTES 4096 /* bytes per cpu */ | |
| #define N_DISPATCH_LOG (DISPATCH_LOG_BYTES / sizeof(struct dtl_entry)) | |
| /* | |
| * Dispatch trace log event enable mask: | |
| * 0x1: voluntary virtual processor waits | |
| * 0x2: time-slice preempts | |
| * 0x4: virtual partition memory page faults | |
| */ | |
| #define DTL_LOG_CEDE 0x1 | |
| #define DTL_LOG_PREEMPT 0x2 | |
| #define DTL_LOG_FAULT 0x4 | |
| #define DTL_LOG_ALL (DTL_LOG_CEDE | DTL_LOG_PREEMPT | DTL_LOG_FAULT) | |
| extern struct kmem_cache *dtl_cache; | |
| extern struct rw_semaphore dtl_access_lock; | |
| extern void register_dtl_buffer(int cpu); | |
| extern void alloc_dtl_buffers(unsigned long *time_limit); | |
| #endif /* _ASM_POWERPC_DTL_H */ |