Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
#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 */
|