1474855d08
From: Maynard Johnson <mpjohn@us.ibm.com> This patch updates the existing arch/powerpc/oprofile/op_model_cell.c to add in the SPU profiling capabilities. In addition, a 'cell' subdirectory was added to arch/powerpc/oprofile to hold Cell-specific SPU profiling code. Exports spu_set_profile_private_kref and spu_get_profile_private_kref which are used by OProfile to store private profile information in spufs data structures. Also incorporated several fixes from other patches (rrn). Check pointer returned from kzalloc. Eliminated unnecessary cast. Better error handling and cleanup in the related area. 64-bit unsigned long parameter was being demoted to 32-bit unsigned int and eventually promoted back to unsigned long. Signed-off-by: Carl Love <carll@us.ibm.com> Signed-off-by: Maynard Johnson <mpjohn@us.ibm.com> Signed-off-by: Bob Nelson <rrnelson@us.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org>
33 lines
654 B
C
33 lines
654 B
C
/**
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* @file event_buffer.h
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*
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* @remark Copyright 2002 OProfile authors
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* @remark Read the file COPYING
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*
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* @author John Levon <levon@movementarian.org>
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*/
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#ifndef EVENT_BUFFER_H
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#define EVENT_BUFFER_H
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#include <linux/types.h>
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#include <asm/mutex.h>
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int alloc_event_buffer(void);
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void free_event_buffer(void);
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/* wake up the process sleeping on the event file */
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void wake_up_buffer_waiter(void);
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#define INVALID_COOKIE ~0UL
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#define NO_COOKIE 0UL
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extern const struct file_operations event_buffer_fops;
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/* mutex between sync_cpu_buffers() and the
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* file reading code.
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*/
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extern struct mutex buffer_mutex;
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#endif /* EVENT_BUFFER_H */
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