forked from mirrors/linux
		
	powerpc/perf: factor out power8 pmu macros and defines
Factor out some of the power8 pmu macros to new a header file to share with power9 pmu code. Just code movement and no logic change. Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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							|  | @ -0,0 +1,230 @@ | |||
| /*
 | ||||
|  * Copyright 2009 Paul Mackerras, IBM Corporation. | ||||
|  * Copyright 2013 Michael Ellerman, IBM Corporation. | ||||
|  * Copyright 2016 Madhavan Srinivasan, IBM Corporation. | ||||
|  * | ||||
|  * This program is free software; you can redistribute it and/or | ||||
|  * modify it under the terms of the GNU General Public License | ||||
|  * as published by the Free Software Foundation; either version | ||||
|  * 2 of the License, or any later version. | ||||
|  */ | ||||
| 
 | ||||
| #ifndef _LINUX_POWERPC_PERF_ISA207_COMMON_H_ | ||||
| #define _LINUX_POWERPC_PERF_ISA207_COMMON_H_ | ||||
| 
 | ||||
| #include <linux/kernel.h> | ||||
| #include <linux/perf_event.h> | ||||
| #include <asm/firmware.h> | ||||
| #include <asm/cputable.h> | ||||
| 
 | ||||
| /*
 | ||||
|  * Raw event encoding for PowerISA v2.07: | ||||
|  * | ||||
|  *        60        56        52        48        44        40        36        32 | ||||
|  * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | | ||||
|  *   | | [ ]                           [      thresh_cmp     ]   [  thresh_ctl   ] | ||||
|  *   | |  |                                                              | | ||||
|  *   | |  *- IFM (Linux)                 thresh start/stop OR FAB match -* | ||||
|  *   | *- BHRB (Linux) | ||||
|  *   *- EBB (Linux) | ||||
|  * | ||||
|  *        28        24        20        16        12         8         4         0 | ||||
|  * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | | ||||
|  *   [   ] [  sample ]   [cache]   [ pmc ]   [unit ]   c     m   [    pmcxsel    ] | ||||
|  *     |        |           |                          |     | | ||||
|  *     |        |           |                          |     *- mark | ||||
|  *     |        |           *- L1/L2/L3 cache_sel      | | ||||
|  *     |        |                                      | | ||||
|  *     |        *- sampling mode for marked events     *- combine | ||||
|  *     | | ||||
|  *     *- thresh_sel | ||||
|  * | ||||
|  * Below uses IBM bit numbering. | ||||
|  * | ||||
|  * MMCR1[x:y] = unit    (PMCxUNIT) | ||||
|  * MMCR1[x]   = combine (PMCxCOMB) | ||||
|  * | ||||
|  * if pmc == 3 and unit == 0 and pmcxsel[0:6] == 0b0101011 | ||||
|  *	# PM_MRK_FAB_RSP_MATCH | ||||
|  *	MMCR1[20:27] = thresh_ctl   (FAB_CRESP_MATCH / FAB_TYPE_MATCH) | ||||
|  * else if pmc == 4 and unit == 0xf and pmcxsel[0:6] == 0b0101001 | ||||
|  *	# PM_MRK_FAB_RSP_MATCH_CYC | ||||
|  *	MMCR1[20:27] = thresh_ctl   (FAB_CRESP_MATCH / FAB_TYPE_MATCH) | ||||
|  * else | ||||
|  *	MMCRA[48:55] = thresh_ctl   (THRESH START/END) | ||||
|  * | ||||
|  * if thresh_sel: | ||||
|  *	MMCRA[45:47] = thresh_sel | ||||
|  * | ||||
|  * if thresh_cmp: | ||||
|  *	MMCRA[22:24] = thresh_cmp[0:2] | ||||
|  *	MMCRA[25:31] = thresh_cmp[3:9] | ||||
|  * | ||||
|  * if unit == 6 or unit == 7 | ||||
|  *	MMCRC[53:55] = cache_sel[1:3]      (L2EVENT_SEL) | ||||
|  * else if unit == 8 or unit == 9: | ||||
|  *	if cache_sel[0] == 0: # L3 bank | ||||
|  *		MMCRC[47:49] = cache_sel[1:3]  (L3EVENT_SEL0) | ||||
|  *	else if cache_sel[0] == 1: | ||||
|  *		MMCRC[50:51] = cache_sel[2:3]  (L3EVENT_SEL1) | ||||
|  * else if cache_sel[1]: # L1 event | ||||
|  *	MMCR1[16] = cache_sel[2] | ||||
|  *	MMCR1[17] = cache_sel[3] | ||||
|  * | ||||
|  * if mark: | ||||
|  *	MMCRA[63]    = 1		(SAMPLE_ENABLE) | ||||
|  *	MMCRA[57:59] = sample[0:2]	(RAND_SAMP_ELIG) | ||||
|  *	MMCRA[61:62] = sample[3:4]	(RAND_SAMP_MODE) | ||||
|  * | ||||
|  * if EBB and BHRB: | ||||
|  *	MMCRA[32:33] = IFM | ||||
|  * | ||||
|  */ | ||||
| 
 | ||||
| #define EVENT_EBB_MASK		1ull | ||||
| #define EVENT_EBB_SHIFT		PERF_EVENT_CONFIG_EBB_SHIFT | ||||
| #define EVENT_BHRB_MASK		1ull | ||||
| #define EVENT_BHRB_SHIFT	62 | ||||
| #define EVENT_WANTS_BHRB	(EVENT_BHRB_MASK << EVENT_BHRB_SHIFT) | ||||
| #define EVENT_IFM_MASK		3ull | ||||
| #define EVENT_IFM_SHIFT		60 | ||||
| #define EVENT_THR_CMP_SHIFT	40	/* Threshold CMP value */ | ||||
| #define EVENT_THR_CMP_MASK	0x3ff | ||||
| #define EVENT_THR_CTL_SHIFT	32	/* Threshold control value (start/stop) */ | ||||
| #define EVENT_THR_CTL_MASK	0xffull | ||||
| #define EVENT_THR_SEL_SHIFT	29	/* Threshold select value */ | ||||
| #define EVENT_THR_SEL_MASK	0x7 | ||||
| #define EVENT_THRESH_SHIFT	29	/* All threshold bits */ | ||||
| #define EVENT_THRESH_MASK	0x1fffffull | ||||
| #define EVENT_SAMPLE_SHIFT	24	/* Sampling mode & eligibility */ | ||||
| #define EVENT_SAMPLE_MASK	0x1f | ||||
| #define EVENT_CACHE_SEL_SHIFT	20	/* L2/L3 cache select */ | ||||
| #define EVENT_CACHE_SEL_MASK	0xf | ||||
| #define EVENT_IS_L1		(4 << EVENT_CACHE_SEL_SHIFT) | ||||
| #define EVENT_PMC_SHIFT		16	/* PMC number (1-based) */ | ||||
| #define EVENT_PMC_MASK		0xf | ||||
| #define EVENT_UNIT_SHIFT	12	/* Unit */ | ||||
| #define EVENT_UNIT_MASK		0xf | ||||
| #define EVENT_COMBINE_SHIFT	11	/* Combine bit */ | ||||
| #define EVENT_COMBINE_MASK	0x1 | ||||
| #define EVENT_MARKED_SHIFT	8	/* Marked bit */ | ||||
| #define EVENT_MARKED_MASK	0x1 | ||||
| #define EVENT_IS_MARKED		(EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) | ||||
| #define EVENT_PSEL_MASK		0xff	/* PMCxSEL value */ | ||||
| 
 | ||||
| /* Bits defined by Linux */ | ||||
| #define EVENT_LINUX_MASK	\ | ||||
| 	((EVENT_EBB_MASK  << EVENT_EBB_SHIFT)			|	\ | ||||
| 	 (EVENT_BHRB_MASK << EVENT_BHRB_SHIFT)			|	\ | ||||
| 	 (EVENT_IFM_MASK  << EVENT_IFM_SHIFT)) | ||||
| 
 | ||||
| #define EVENT_VALID_MASK	\ | ||||
| 	((EVENT_THRESH_MASK    << EVENT_THRESH_SHIFT)		|	\ | ||||
| 	 (EVENT_SAMPLE_MASK    << EVENT_SAMPLE_SHIFT)		|	\ | ||||
| 	 (EVENT_CACHE_SEL_MASK << EVENT_CACHE_SEL_SHIFT)	|	\ | ||||
| 	 (EVENT_PMC_MASK       << EVENT_PMC_SHIFT)		|	\ | ||||
| 	 (EVENT_UNIT_MASK      << EVENT_UNIT_SHIFT)		|	\ | ||||
| 	 (EVENT_COMBINE_MASK   << EVENT_COMBINE_SHIFT)		|	\ | ||||
| 	 (EVENT_MARKED_MASK    << EVENT_MARKED_SHIFT)		|	\ | ||||
| 	  EVENT_LINUX_MASK					|	\ | ||||
| 	  EVENT_PSEL_MASK) | ||||
| 
 | ||||
| #define ONLY_PLM \ | ||||
| 	(PERF_SAMPLE_BRANCH_USER        |\ | ||||
| 	 PERF_SAMPLE_BRANCH_KERNEL      |\ | ||||
| 	 PERF_SAMPLE_BRANCH_HV) | ||||
| 
 | ||||
| /*
 | ||||
|  * Layout of constraint bits: | ||||
|  * | ||||
|  *        60        56        52        48        44        40        36        32 | ||||
|  * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | | ||||
|  *   [   fab_match   ]         [       thresh_cmp      ] [   thresh_ctl    ] [   ] | ||||
|  *                                                                             | | ||||
|  *                                                                 thresh_sel -* | ||||
|  * | ||||
|  *        28        24        20        16        12         8         4         0 | ||||
|  * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | | ||||
|  *               [ ] |   [ ]   [  sample ]   [     ]   [6] [5]   [4] [3]   [2] [1] | ||||
|  *                |  |    |                     | | ||||
|  *      BHRB IFM -*  |    |                     |      Count of events for each PMC. | ||||
|  *              EBB -*    |                     |        p1, p2, p3, p4, p5, p6. | ||||
|  *      L1 I/D qualifier -*                     | | ||||
|  *                     nc - number of counters -* | ||||
|  * | ||||
|  * The PMC fields P1..P6, and NC, are adder fields. As we accumulate constraints | ||||
|  * we want the low bit of each field to be added to any existing value. | ||||
|  * | ||||
|  * Everything else is a value field. | ||||
|  */ | ||||
| 
 | ||||
| #define CNST_FAB_MATCH_VAL(v)	(((v) & EVENT_THR_CTL_MASK) << 56) | ||||
| #define CNST_FAB_MATCH_MASK	CNST_FAB_MATCH_VAL(EVENT_THR_CTL_MASK) | ||||
| 
 | ||||
| /* We just throw all the threshold bits into the constraint */ | ||||
| #define CNST_THRESH_VAL(v)	(((v) & EVENT_THRESH_MASK) << 32) | ||||
| #define CNST_THRESH_MASK	CNST_THRESH_VAL(EVENT_THRESH_MASK) | ||||
| 
 | ||||
| #define CNST_EBB_VAL(v)		(((v) & EVENT_EBB_MASK) << 24) | ||||
| #define CNST_EBB_MASK		CNST_EBB_VAL(EVENT_EBB_MASK) | ||||
| 
 | ||||
| #define CNST_IFM_VAL(v)		(((v) & EVENT_IFM_MASK) << 25) | ||||
| #define CNST_IFM_MASK		CNST_IFM_VAL(EVENT_IFM_MASK) | ||||
| 
 | ||||
| #define CNST_L1_QUAL_VAL(v)	(((v) & 3) << 22) | ||||
| #define CNST_L1_QUAL_MASK	CNST_L1_QUAL_VAL(3) | ||||
| 
 | ||||
| #define CNST_SAMPLE_VAL(v)	(((v) & EVENT_SAMPLE_MASK) << 16) | ||||
| #define CNST_SAMPLE_MASK	CNST_SAMPLE_VAL(EVENT_SAMPLE_MASK) | ||||
| 
 | ||||
| /*
 | ||||
|  * For NC we are counting up to 4 events. This requires three bits, and we need | ||||
|  * the fifth event to overflow and set the 4th bit. To achieve that we bias the | ||||
|  * fields by 3 in test_adder. | ||||
|  */ | ||||
| #define CNST_NC_SHIFT		12 | ||||
| #define CNST_NC_VAL		(1 << CNST_NC_SHIFT) | ||||
| #define CNST_NC_MASK		(8 << CNST_NC_SHIFT) | ||||
| #define ISA207_TEST_ADDER	(3 << CNST_NC_SHIFT) | ||||
| 
 | ||||
| /*
 | ||||
|  * For the per-PMC fields we have two bits. The low bit is added, so if two | ||||
|  * events ask for the same PMC the sum will overflow, setting the high bit, | ||||
|  * indicating an error. So our mask sets the high bit. | ||||
|  */ | ||||
| #define CNST_PMC_SHIFT(pmc)	((pmc - 1) * 2) | ||||
| #define CNST_PMC_VAL(pmc)	(1 << CNST_PMC_SHIFT(pmc)) | ||||
| #define CNST_PMC_MASK(pmc)	(2 << CNST_PMC_SHIFT(pmc)) | ||||
| 
 | ||||
| /* Our add_fields is defined as: */ | ||||
| #define ISA207_ADD_FIELDS	\ | ||||
| 	CNST_PMC_VAL(1) | CNST_PMC_VAL(2) | CNST_PMC_VAL(3) | \ | ||||
| 	CNST_PMC_VAL(4) | CNST_PMC_VAL(5) | CNST_PMC_VAL(6) | CNST_NC_VAL | ||||
| 
 | ||||
| 
 | ||||
| /* Bits in MMCR1 for PowerISA v2.07 */ | ||||
| #define MMCR1_UNIT_SHIFT(pmc)		(60 - (4 * ((pmc) - 1))) | ||||
| #define MMCR1_COMBINE_SHIFT(pmc)	(35 - ((pmc) - 1)) | ||||
| #define MMCR1_PMCSEL_SHIFT(pmc)		(24 - (((pmc) - 1)) * 8) | ||||
| #define MMCR1_FAB_SHIFT			36 | ||||
| #define MMCR1_DC_QUAL_SHIFT		47 | ||||
| #define MMCR1_IC_QUAL_SHIFT		46 | ||||
| 
 | ||||
| /* Bits in MMCRA for PowerISA v2.07 */ | ||||
| #define MMCRA_SAMP_MODE_SHIFT		1 | ||||
| #define MMCRA_SAMP_ELIG_SHIFT		4 | ||||
| #define MMCRA_THR_CTL_SHIFT		8 | ||||
| #define MMCRA_THR_SEL_SHIFT		16 | ||||
| #define MMCRA_THR_CMP_SHIFT		32 | ||||
| #define MMCRA_SDAR_MODE_TLB		(1ull << 42) | ||||
| #define MMCRA_IFM_SHIFT			30 | ||||
| 
 | ||||
| /* Bits in MMCR2 for PowerISA v2.07 */ | ||||
| #define MMCR2_FCS(pmc)			(1ull << (63 - (((pmc) - 1) * 9))) | ||||
| #define MMCR2_FCP(pmc)			(1ull << (62 - (((pmc) - 1) * 9))) | ||||
| #define MMCR2_FCH(pmc)			(1ull << (57 - (((pmc) - 1) * 9))) | ||||
| 
 | ||||
| #define MAX_ALT				2 | ||||
| #define MAX_PMU_COUNTERS		6 | ||||
| 
 | ||||
| #endif | ||||
|  | @ -12,10 +12,7 @@ | |||
| 
 | ||||
| #define pr_fmt(fmt)	"power8-pmu: " fmt | ||||
| 
 | ||||
| #include <linux/kernel.h> | ||||
| #include <linux/perf_event.h> | ||||
| #include <asm/firmware.h> | ||||
| #include <asm/cputable.h> | ||||
| #include "isa207-common.h" | ||||
| 
 | ||||
| /*
 | ||||
|  * Some power8 event codes. | ||||
|  | @ -28,219 +25,11 @@ enum { | |||
| 
 | ||||
| #undef EVENT | ||||
| 
 | ||||
| /*
 | ||||
|  * Raw event encoding for POWER8: | ||||
|  * | ||||
|  *        60        56        52        48        44        40        36        32 | ||||
|  * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | | ||||
|  *   | | [ ]                           [      thresh_cmp     ]   [  thresh_ctl   ] | ||||
|  *   | |  |                                                              | | ||||
|  *   | |  *- IFM (Linux)                 thresh start/stop OR FAB match -* | ||||
|  *   | *- BHRB (Linux) | ||||
|  *   *- EBB (Linux) | ||||
|  * | ||||
|  *        28        24        20        16        12         8         4         0 | ||||
|  * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | | ||||
|  *   [   ] [  sample ]   [cache]   [ pmc ]   [unit ]   c     m   [    pmcxsel    ] | ||||
|  *     |        |           |                          |     | | ||||
|  *     |        |           |                          |     *- mark | ||||
|  *     |        |           *- L1/L2/L3 cache_sel      | | ||||
|  *     |        |                                      | | ||||
|  *     |        *- sampling mode for marked events     *- combine | ||||
|  *     | | ||||
|  *     *- thresh_sel | ||||
|  * | ||||
|  * Below uses IBM bit numbering. | ||||
|  * | ||||
|  * MMCR1[x:y] = unit    (PMCxUNIT) | ||||
|  * MMCR1[x]   = combine (PMCxCOMB) | ||||
|  * | ||||
|  * if pmc == 3 and unit == 0 and pmcxsel[0:6] == 0b0101011 | ||||
|  *	# PM_MRK_FAB_RSP_MATCH | ||||
|  *	MMCR1[20:27] = thresh_ctl   (FAB_CRESP_MATCH / FAB_TYPE_MATCH) | ||||
|  * else if pmc == 4 and unit == 0xf and pmcxsel[0:6] == 0b0101001 | ||||
|  *	# PM_MRK_FAB_RSP_MATCH_CYC | ||||
|  *	MMCR1[20:27] = thresh_ctl   (FAB_CRESP_MATCH / FAB_TYPE_MATCH) | ||||
|  * else | ||||
|  *	MMCRA[48:55] = thresh_ctl   (THRESH START/END) | ||||
|  * | ||||
|  * if thresh_sel: | ||||
|  *	MMCRA[45:47] = thresh_sel | ||||
|  * | ||||
|  * if thresh_cmp: | ||||
|  *	MMCRA[22:24] = thresh_cmp[0:2] | ||||
|  *	MMCRA[25:31] = thresh_cmp[3:9] | ||||
|  * | ||||
|  * if unit == 6 or unit == 7 | ||||
|  *	MMCRC[53:55] = cache_sel[1:3]      (L2EVENT_SEL) | ||||
|  * else if unit == 8 or unit == 9: | ||||
|  *	if cache_sel[0] == 0: # L3 bank | ||||
|  *		MMCRC[47:49] = cache_sel[1:3]  (L3EVENT_SEL0) | ||||
|  *	else if cache_sel[0] == 1: | ||||
|  *		MMCRC[50:51] = cache_sel[2:3]  (L3EVENT_SEL1) | ||||
|  * else if cache_sel[1]: # L1 event | ||||
|  *	MMCR1[16] = cache_sel[2] | ||||
|  *	MMCR1[17] = cache_sel[3] | ||||
|  * | ||||
|  * if mark: | ||||
|  *	MMCRA[63]    = 1		(SAMPLE_ENABLE) | ||||
|  *	MMCRA[57:59] = sample[0:2]	(RAND_SAMP_ELIG) | ||||
|  *	MMCRA[61:62] = sample[3:4]	(RAND_SAMP_MODE) | ||||
|  * | ||||
|  * if EBB and BHRB: | ||||
|  *	MMCRA[32:33] = IFM | ||||
|  * | ||||
|  */ | ||||
| 
 | ||||
| #define EVENT_EBB_MASK		1ull | ||||
| #define EVENT_EBB_SHIFT		PERF_EVENT_CONFIG_EBB_SHIFT | ||||
| #define EVENT_BHRB_MASK		1ull | ||||
| #define EVENT_BHRB_SHIFT	62 | ||||
| #define EVENT_WANTS_BHRB	(EVENT_BHRB_MASK << EVENT_BHRB_SHIFT) | ||||
| #define EVENT_IFM_MASK		3ull | ||||
| #define EVENT_IFM_SHIFT		60 | ||||
| #define EVENT_THR_CMP_SHIFT	40	/* Threshold CMP value */ | ||||
| #define EVENT_THR_CMP_MASK	0x3ff | ||||
| #define EVENT_THR_CTL_SHIFT	32	/* Threshold control value (start/stop) */ | ||||
| #define EVENT_THR_CTL_MASK	0xffull | ||||
| #define EVENT_THR_SEL_SHIFT	29	/* Threshold select value */ | ||||
| #define EVENT_THR_SEL_MASK	0x7 | ||||
| #define EVENT_THRESH_SHIFT	29	/* All threshold bits */ | ||||
| #define EVENT_THRESH_MASK	0x1fffffull | ||||
| #define EVENT_SAMPLE_SHIFT	24	/* Sampling mode & eligibility */ | ||||
| #define EVENT_SAMPLE_MASK	0x1f | ||||
| #define EVENT_CACHE_SEL_SHIFT	20	/* L2/L3 cache select */ | ||||
| #define EVENT_CACHE_SEL_MASK	0xf | ||||
| #define EVENT_IS_L1		(4 << EVENT_CACHE_SEL_SHIFT) | ||||
| #define EVENT_PMC_SHIFT		16	/* PMC number (1-based) */ | ||||
| #define EVENT_PMC_MASK		0xf | ||||
| #define EVENT_UNIT_SHIFT	12	/* Unit */ | ||||
| #define EVENT_UNIT_MASK		0xf | ||||
| #define EVENT_COMBINE_SHIFT	11	/* Combine bit */ | ||||
| #define EVENT_COMBINE_MASK	0x1 | ||||
| #define EVENT_MARKED_SHIFT	8	/* Marked bit */ | ||||
| #define EVENT_MARKED_MASK	0x1 | ||||
| #define EVENT_IS_MARKED		(EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) | ||||
| #define EVENT_PSEL_MASK		0xff	/* PMCxSEL value */ | ||||
| 
 | ||||
| /* Bits defined by Linux */ | ||||
| #define EVENT_LINUX_MASK	\ | ||||
| 	((EVENT_EBB_MASK  << EVENT_EBB_SHIFT)			|	\ | ||||
| 	 (EVENT_BHRB_MASK << EVENT_BHRB_SHIFT)			|	\ | ||||
| 	 (EVENT_IFM_MASK  << EVENT_IFM_SHIFT)) | ||||
| 
 | ||||
| #define EVENT_VALID_MASK	\ | ||||
| 	((EVENT_THRESH_MASK    << EVENT_THRESH_SHIFT)		|	\ | ||||
| 	 (EVENT_SAMPLE_MASK    << EVENT_SAMPLE_SHIFT)		|	\ | ||||
| 	 (EVENT_CACHE_SEL_MASK << EVENT_CACHE_SEL_SHIFT)	|	\ | ||||
| 	 (EVENT_PMC_MASK       << EVENT_PMC_SHIFT)		|	\ | ||||
| 	 (EVENT_UNIT_MASK      << EVENT_UNIT_SHIFT)		|	\ | ||||
| 	 (EVENT_COMBINE_MASK   << EVENT_COMBINE_SHIFT)		|	\ | ||||
| 	 (EVENT_MARKED_MASK    << EVENT_MARKED_SHIFT)		|	\ | ||||
| 	  EVENT_LINUX_MASK					|	\ | ||||
| 	  EVENT_PSEL_MASK) | ||||
| 
 | ||||
| /* MMCRA IFM bits - POWER8 */ | ||||
| #define	POWER8_MMCRA_IFM1		0x0000000040000000UL | ||||
| #define	POWER8_MMCRA_IFM2		0x0000000080000000UL | ||||
| #define	POWER8_MMCRA_IFM3		0x00000000C0000000UL | ||||
| 
 | ||||
| #define ONLY_PLM \ | ||||
| 	(PERF_SAMPLE_BRANCH_USER        |\ | ||||
| 	 PERF_SAMPLE_BRANCH_KERNEL      |\ | ||||
| 	 PERF_SAMPLE_BRANCH_HV) | ||||
| 
 | ||||
| /*
 | ||||
|  * Layout of constraint bits: | ||||
|  * | ||||
|  *        60        56        52        48        44        40        36        32 | ||||
|  * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | | ||||
|  *   [   fab_match   ]         [       thresh_cmp      ] [   thresh_ctl    ] [   ] | ||||
|  *                                                                             | | ||||
|  *                                                                 thresh_sel -* | ||||
|  * | ||||
|  *        28        24        20        16        12         8         4         0 | ||||
|  * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | | ||||
|  *               [ ] |   [ ]   [  sample ]   [     ]   [6] [5]   [4] [3]   [2] [1] | ||||
|  *                |  |    |                     | | ||||
|  *      BHRB IFM -*  |    |                     |      Count of events for each PMC. | ||||
|  *              EBB -*    |                     |        p1, p2, p3, p4, p5, p6. | ||||
|  *      L1 I/D qualifier -*                     | | ||||
|  *                     nc - number of counters -* | ||||
|  * | ||||
|  * The PMC fields P1..P6, and NC, are adder fields. As we accumulate constraints | ||||
|  * we want the low bit of each field to be added to any existing value. | ||||
|  * | ||||
|  * Everything else is a value field. | ||||
|  */ | ||||
| 
 | ||||
| #define CNST_FAB_MATCH_VAL(v)	(((v) & EVENT_THR_CTL_MASK) << 56) | ||||
| #define CNST_FAB_MATCH_MASK	CNST_FAB_MATCH_VAL(EVENT_THR_CTL_MASK) | ||||
| 
 | ||||
| /* We just throw all the threshold bits into the constraint */ | ||||
| #define CNST_THRESH_VAL(v)	(((v) & EVENT_THRESH_MASK) << 32) | ||||
| #define CNST_THRESH_MASK	CNST_THRESH_VAL(EVENT_THRESH_MASK) | ||||
| 
 | ||||
| #define CNST_EBB_VAL(v)		(((v) & EVENT_EBB_MASK) << 24) | ||||
| #define CNST_EBB_MASK		CNST_EBB_VAL(EVENT_EBB_MASK) | ||||
| 
 | ||||
| #define CNST_IFM_VAL(v)		(((v) & EVENT_IFM_MASK) << 25) | ||||
| #define CNST_IFM_MASK		CNST_IFM_VAL(EVENT_IFM_MASK) | ||||
| 
 | ||||
| #define CNST_L1_QUAL_VAL(v)	(((v) & 3) << 22) | ||||
| #define CNST_L1_QUAL_MASK	CNST_L1_QUAL_VAL(3) | ||||
| 
 | ||||
| #define CNST_SAMPLE_VAL(v)	(((v) & EVENT_SAMPLE_MASK) << 16) | ||||
| #define CNST_SAMPLE_MASK	CNST_SAMPLE_VAL(EVENT_SAMPLE_MASK) | ||||
| 
 | ||||
| /*
 | ||||
|  * For NC we are counting up to 4 events. This requires three bits, and we need | ||||
|  * the fifth event to overflow and set the 4th bit. To achieve that we bias the | ||||
|  * fields by 3 in test_adder. | ||||
|  */ | ||||
| #define CNST_NC_SHIFT		12 | ||||
| #define CNST_NC_VAL		(1 << CNST_NC_SHIFT) | ||||
| #define CNST_NC_MASK		(8 << CNST_NC_SHIFT) | ||||
| #define POWER8_TEST_ADDER	(3 << CNST_NC_SHIFT) | ||||
| 
 | ||||
| /*
 | ||||
|  * For the per-PMC fields we have two bits. The low bit is added, so if two | ||||
|  * events ask for the same PMC the sum will overflow, setting the high bit, | ||||
|  * indicating an error. So our mask sets the high bit. | ||||
|  */ | ||||
| #define CNST_PMC_SHIFT(pmc)	((pmc - 1) * 2) | ||||
| #define CNST_PMC_VAL(pmc)	(1 << CNST_PMC_SHIFT(pmc)) | ||||
| #define CNST_PMC_MASK(pmc)	(2 << CNST_PMC_SHIFT(pmc)) | ||||
| 
 | ||||
| /* Our add_fields is defined as: */ | ||||
| #define POWER8_ADD_FIELDS	\ | ||||
| 	CNST_PMC_VAL(1) | CNST_PMC_VAL(2) | CNST_PMC_VAL(3) | \ | ||||
| 	CNST_PMC_VAL(4) | CNST_PMC_VAL(5) | CNST_PMC_VAL(6) | CNST_NC_VAL | ||||
| 
 | ||||
| 
 | ||||
| /* Bits in MMCR1 for POWER8 */ | ||||
| #define MMCR1_UNIT_SHIFT(pmc)		(60 - (4 * ((pmc) - 1))) | ||||
| #define MMCR1_COMBINE_SHIFT(pmc)	(35 - ((pmc) - 1)) | ||||
| #define MMCR1_PMCSEL_SHIFT(pmc)		(24 - (((pmc) - 1)) * 8) | ||||
| #define MMCR1_FAB_SHIFT			36 | ||||
| #define MMCR1_DC_QUAL_SHIFT		47 | ||||
| #define MMCR1_IC_QUAL_SHIFT		46 | ||||
| 
 | ||||
| /* Bits in MMCRA for POWER8 */ | ||||
| #define MMCRA_SAMP_MODE_SHIFT		1 | ||||
| #define MMCRA_SAMP_ELIG_SHIFT		4 | ||||
| #define MMCRA_THR_CTL_SHIFT		8 | ||||
| #define MMCRA_THR_SEL_SHIFT		16 | ||||
| #define MMCRA_THR_CMP_SHIFT		32 | ||||
| #define MMCRA_SDAR_MODE_TLB		(1ull << 42) | ||||
| #define MMCRA_IFM_SHIFT			30 | ||||
| 
 | ||||
| /* Bits in MMCR2 for POWER8 */ | ||||
| #define MMCR2_FCS(pmc)			(1ull << (63 - (((pmc) - 1) * 9))) | ||||
| #define MMCR2_FCP(pmc)			(1ull << (62 - (((pmc) - 1) * 9))) | ||||
| #define MMCR2_FCH(pmc)			(1ull << (57 - (((pmc) - 1) * 9))) | ||||
| 
 | ||||
| 
 | ||||
| static inline bool event_is_fab_match(u64 event) | ||||
| { | ||||
| 	/* Only check pmc, unit and pmcxsel, ignore the edge bit (0) */ | ||||
|  | @ -485,8 +274,6 @@ static int power8_compute_mmcr(u64 event[], int n_ev, | |||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| #define MAX_ALT	2 | ||||
| 
 | ||||
| /* Table of alternatives, sorted by column 0 */ | ||||
| static const unsigned int event_alternatives[][MAX_ALT] = { | ||||
| 	{ PM_MRK_ST_CMPL,		PM_MRK_ST_CMPL_ALT }, | ||||
|  | @ -841,10 +628,10 @@ static int power8_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { | |||
| 
 | ||||
| static struct power_pmu power8_pmu = { | ||||
| 	.name			= "POWER8", | ||||
| 	.n_counter		= 6, | ||||
| 	.n_counter		= MAX_PMU_COUNTERS, | ||||
| 	.max_alternatives	= MAX_ALT + 1, | ||||
| 	.add_fields		= POWER8_ADD_FIELDS, | ||||
| 	.test_adder		= POWER8_TEST_ADDER, | ||||
| 	.add_fields		= ISA207_ADD_FIELDS, | ||||
| 	.test_adder		= ISA207_TEST_ADDER, | ||||
| 	.compute_mmcr		= power8_compute_mmcr, | ||||
| 	.config_bhrb		= power8_config_bhrb, | ||||
| 	.bhrb_filter_map	= power8_bhrb_filter_map, | ||||
|  |  | |||
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		Reference in a new issue
	
	 Madhavan Srinivasan
						Madhavan Srinivasan