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52 lines
1.5 KiB
52 lines
1.5 KiB
#ifndef _ASM_POWERPC_DTL_H |
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#define _ASM_POWERPC_DTL_H |
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#include <asm/lppaca.h> |
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#include <linux/spinlock_types.h> |
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/* |
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* Layout of entries in the hypervisor's dispatch trace log buffer. |
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*/ |
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struct dtl_entry { |
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u8 dispatch_reason; |
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u8 preempt_reason; |
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__be16 processor_id; |
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__be32 enqueue_to_dispatch_time; |
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__be32 ready_to_enqueue_time; |
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__be32 waiting_to_ready_time; |
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__be64 timebase; |
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__be64 fault_addr; |
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__be64 srr0; |
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__be64 srr1; |
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}; |
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#define DISPATCH_LOG_BYTES 4096 /* bytes per cpu */ |
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#define N_DISPATCH_LOG (DISPATCH_LOG_BYTES / sizeof(struct dtl_entry)) |
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/* |
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* Dispatch trace log event enable mask: |
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* 0x1: voluntary virtual processor waits |
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* 0x2: time-slice preempts |
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* 0x4: virtual partition memory page faults |
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*/ |
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#define DTL_LOG_CEDE 0x1 |
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#define DTL_LOG_PREEMPT 0x2 |
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#define DTL_LOG_FAULT 0x4 |
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#define DTL_LOG_ALL (DTL_LOG_CEDE | DTL_LOG_PREEMPT | DTL_LOG_FAULT) |
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extern struct kmem_cache *dtl_cache; |
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extern rwlock_t dtl_access_lock; |
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/* |
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* When CONFIG_VIRT_CPU_ACCOUNTING_NATIVE = y, the cpu accounting code controls |
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* reading from the dispatch trace log. If other code wants to consume |
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* DTL entries, it can set this pointer to a function that will get |
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* called once for each DTL entry that gets processed. |
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*/ |
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extern void (*dtl_consumer)(struct dtl_entry *entry, u64 index); |
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extern void register_dtl_buffer(int cpu); |
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extern void alloc_dtl_buffers(unsigned long *time_limit); |
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extern long hcall_vphn(unsigned long cpu, u64 flags, __be32 *associativity); |
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#endif /* _ASM_POWERPC_DTL_H */
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