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/*
* Copyright (c) 2009 Google, Inc
* Contributed by Stephane Eranian <eranian@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA
*
*/
#ifndef __PERFMON_PEBS_SMPL_H__
#define __PERFMON_PEBS_SMPL_H__ 1
/*
* The 32-bit and 64-bit formats are identical, thus we use only
* one name for the format.
*/
#define PFM_PEBS_SMPL_NAME "pebs"
#define PFM_PEBS_NUM_CNT_RESET 8
/*
* format specific parameters (passed at context creation)
*
* intr_thres: index from start of buffer of entry where the
* PMU interrupt must be triggered. It must be several samples
* short of the end of the buffer.
*/
typedef struct {
uint64_t buf_size; /* size of the PEBS buffer in bytes */
uint64_t cnt_reset[PFM_PEBS_NUM_CNT_RESET];/* counter reset values */
uint64_t reserved2[23]; /* for future use */
} pfm_pebs_smpl_arg_t;
/*
* This header is at the beginning of the sampling buffer returned to the user.
*
* Because of PEBS alignement constraints, the actual PEBS buffer area does
* not necessarily begin right after the header. The hdr_start_offs must be
* used to compute the first byte of the buffer. The offset is defined as
* the number of bytes between the end of the header and the beginning of
* the buffer. As such the formula is:
* actual_buffer = (unsigned long)(hdr+1)+hdr->hdr_start_offs
*/
typedef struct {
uint64_t overflows; /* #overflows for buffer */
uint64_t count; /* number of valid samples */
uint64_t buf_size; /* total buffer size */
uint64_t pebs_size; /* pebs buffer size */
uint32_t version; /* smpl format version */
uint32_t entry_size; /* pebs sample size */
uint64_t reserved2[11]; /* for future use */
} pfm_pebs_smpl_hdr_t;
/*
* Sample format as mandated by Intel documentation.
* The same format is used in both 32 and 64 bit modes.
*/
typedef struct {
uint64_t eflags;
uint64_t ip;
uint64_t eax;
uint64_t ebx;
uint64_t ecx;
uint64_t edx;
uint64_t esi;
uint64_t edi;
uint64_t ebp;
uint64_t esp;
uint64_t r8; /* 0 in 32-bit mode */
uint64_t r9; /* 0 in 32-bit mode */
uint64_t r10; /* 0 in 32-bit mode */
uint64_t r11; /* 0 in 32-bit mode */
uint64_t r12; /* 0 in 32-bit mode */
uint64_t r13; /* 0 in 32-bit mode */
uint64_t r14; /* 0 in 32-bit mode */
uint64_t r15; /* 0 in 32-bit mode */
} pfm_pebs_core_smpl_entry_t;
/*
* Sample format as mandated by Intel documentation.
* The same format is used in both 32 and 64 bit modes.
*/
typedef struct {
uint64_t eflags;
uint64_t ip;
uint64_t eax;
uint64_t ebx;
uint64_t ecx;
uint64_t edx;
uint64_t esi;
uint64_t edi;
uint64_t ebp;
uint64_t esp;
uint64_t r8; /* 0 in 32-bit mode */
uint64_t r9; /* 0 in 32-bit mode */
uint64_t r10; /* 0 in 32-bit mode */
uint64_t r11; /* 0 in 32-bit mode */
uint64_t r12; /* 0 in 32-bit mode */
uint64_t r13; /* 0 in 32-bit mode */
uint64_t r14; /* 0 in 32-bit mode */
uint64_t r15; /* 0 in 32-bit mode */
uint64_t ia32_perf_global_status;
uint64_t daddr;
uint64_t dsrc_enc;
uint64_t latency;
} pfm_pebs_nhm_smpl_entry_t;
/*
* 64-bit PEBS record format is described in
* http://www.intel.com/technology/64bitextensions/30083502.pdf
*
* The format does not peek at samples. The sample structure is only
* used to ensure that the buffer is large enough to accomodate one
* sample.
*/
#ifdef __i386__
typedef struct {
uint32_t eflags;
uint32_t ip;
uint32_t eax;
uint32_t ebx;
uint32_t ecx;
uint32_t edx;
uint32_t esi;
uint32_t edi;
uint32_t ebp;
uint32_t esp;
} pfm_pebs_p4_smpl_entry_t;
#else
typedef struct {
uint64_t eflags;
uint64_t ip;
uint64_t eax;
uint64_t ebx;
uint64_t ecx;
uint64_t edx;
uint64_t esi;
uint64_t edi;
uint64_t ebp;
uint64_t esp;
uint64_t r8;
uint64_t r9;
uint64_t r10;
uint64_t r11;
uint64_t r12;
uint64_t r13;
uint64_t r14;
uint64_t r15;
} pfm_pebs_p4_smpl_entry_t;
#endif
#define PFM_PEBS_SMPL_VERSION_MAJ 1U
#define PFM_PEBS_SMPL_VERSION_MIN 0U
#define PFM_PEBS_SMPL_VERSION (((PFM_PEBS_SMPL_VERSION_MAJ&0xffff)<<16)|\
(PFM_PEBS_SMPL_VERSION_MIN & 0xffff))
#endif /* __PERFMON_PEBS_SMPL_H__ */
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