diff options
Diffstat (limited to 'arch/powerpc/include/asm/lppaca.h')
| -rw-r--r-- | arch/powerpc/include/asm/lppaca.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h index 806494283e2a..3b4b305796ae 100644 --- a/arch/powerpc/include/asm/lppaca.h +++ b/arch/powerpc/include/asm/lppaca.h @@ -5,6 +5,29 @@ */ #ifndef _ASM_POWERPC_LPPACA_H #define _ASM_POWERPC_LPPACA_H + +/* + * The below VPHN macros are outside the __KERNEL__ check since these are + * used for compiling the vphn selftest in userspace + */ + +/* The H_HOME_NODE_ASSOCIATIVITY h_call returns 6 64-bit registers. */ +#define VPHN_REGISTER_COUNT 6 + +/* + * 6 64-bit registers unpacked into up to 24 be32 associativity values. To + * form the complete property we have to add the length in the first cell. + */ +#define VPHN_ASSOC_BUFSIZE (VPHN_REGISTER_COUNT*sizeof(u64)/sizeof(u16) + 1) + +/* + * The H_HOME_NODE_ASSOCIATIVITY hcall takes two values for flags: + * 1 for retrieving associativity information for a guest cpu + * 2 for retrieving associativity information for a host/hypervisor cpu + */ +#define VPHN_FLAG_VCPU 1 +#define VPHN_FLAG_PCPU 2 + #ifdef __KERNEL__ /* @@ -19,6 +42,7 @@ */ #include <linux/cache.h> #include <linux/threads.h> +#include <linux/spinlock_types.h> #include <asm/types.h> #include <asm/mmu.h> #include <asm/firmware.h> @@ -141,7 +165,19 @@ struct dtl_entry { #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 rwlock_t dtl_access_lock; /* * When CONFIG_VIRT_CPU_ACCOUNTING_NATIVE = y, the cpu accounting code controls @@ -151,6 +187,10 @@ extern struct kmem_cache *dtl_cache; */ extern void (*dtl_consumer)(struct dtl_entry *entry, u64 index); +extern void register_dtl_buffer(int cpu); +extern void alloc_dtl_buffers(unsigned long *time_limit); +extern long hcall_vphn(unsigned long cpu, u64 flags, __be32 *associativity); + #endif /* CONFIG_PPC_BOOK3S */ #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_LPPACA_H */ |