summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/kernel/power6-pmu.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/kernel/power6-pmu.c')
-rw-r--r--arch/powerpc/kernel/power6-pmu.c552
1 files changed, 0 insertions, 552 deletions
diff --git a/arch/powerpc/kernel/power6-pmu.c b/arch/powerpc/kernel/power6-pmu.c
deleted file mode 100644
index 0bbc901e7efc..000000000000
--- a/arch/powerpc/kernel/power6-pmu.c
+++ /dev/null
@@ -1,552 +0,0 @@
-/*
- * Performance counter support for POWER6 processors.
- *
- * Copyright 2008-2009 Paul Mackerras, 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 (at your option) any later version.
- */
-#include <linux/kernel.h>
-#include <linux/perf_event.h>
-#include <linux/string.h>
-#include <asm/reg.h>
-#include <asm/cputable.h>
-
-/*
- * Bits in event code for POWER6
- */
-#define PM_PMC_SH 20 /* PMC number (1-based) for direct events */
-#define PM_PMC_MSK 0x7
-#define PM_PMC_MSKS (PM_PMC_MSK << PM_PMC_SH)
-#define PM_UNIT_SH 16 /* Unit event comes (TTMxSEL encoding) */
-#define PM_UNIT_MSK 0xf
-#define PM_UNIT_MSKS (PM_UNIT_MSK << PM_UNIT_SH)
-#define PM_LLAV 0x8000 /* Load lookahead match value */
-#define PM_LLA 0x4000 /* Load lookahead match enable */
-#define PM_BYTE_SH 12 /* Byte of event bus to use */
-#define PM_BYTE_MSK 3
-#define PM_SUBUNIT_SH 8 /* Subunit event comes from (NEST_SEL enc.) */
-#define PM_SUBUNIT_MSK 7
-#define PM_SUBUNIT_MSKS (PM_SUBUNIT_MSK << PM_SUBUNIT_SH)
-#define PM_PMCSEL_MSK 0xff /* PMCxSEL value */
-#define PM_BUSEVENT_MSK 0xf3700
-
-/*
- * Bits in MMCR1 for POWER6
- */
-#define MMCR1_TTM0SEL_SH 60
-#define MMCR1_TTMSEL_SH(n) (MMCR1_TTM0SEL_SH - (n) * 4)
-#define MMCR1_TTMSEL_MSK 0xf
-#define MMCR1_TTMSEL(m, n) (((m) >> MMCR1_TTMSEL_SH(n)) & MMCR1_TTMSEL_MSK)
-#define MMCR1_NESTSEL_SH 45
-#define MMCR1_NESTSEL_MSK 0x7
-#define MMCR1_NESTSEL(m) (((m) >> MMCR1_NESTSEL_SH) & MMCR1_NESTSEL_MSK)
-#define MMCR1_PMC1_LLA (1ul << 44)
-#define MMCR1_PMC1_LLA_VALUE (1ul << 39)
-#define MMCR1_PMC1_ADDR_SEL (1ul << 35)
-#define MMCR1_PMC1SEL_SH 24
-#define MMCR1_PMCSEL_SH(n) (MMCR1_PMC1SEL_SH - (n) * 8)
-#define MMCR1_PMCSEL_MSK 0xff
-
-/*
- * Map of which direct events on which PMCs are marked instruction events.
- * Indexed by PMCSEL value >> 1.
- * Bottom 4 bits are a map of which PMCs are interesting,
- * top 4 bits say what sort of event:
- * 0 = direct marked event,
- * 1 = byte decode event,
- * 4 = add/and event (PMC1 -> bits 0 & 4),
- * 5 = add/and event (PMC1 -> bits 1 & 5),
- * 6 = add/and event (PMC1 -> bits 2 & 6),
- * 7 = add/and event (PMC1 -> bits 3 & 7).
- */
-static unsigned char direct_event_is_marked[0x60 >> 1] = {
- 0, /* 00 */
- 0, /* 02 */
- 0, /* 04 */
- 0x07, /* 06 PM_MRK_ST_CMPL, PM_MRK_ST_GPS, PM_MRK_ST_CMPL_INT */
- 0x04, /* 08 PM_MRK_DFU_FIN */
- 0x06, /* 0a PM_MRK_IFU_FIN, PM_MRK_INST_FIN */
- 0, /* 0c */
- 0, /* 0e */
- 0x02, /* 10 PM_MRK_INST_DISP */
- 0x08, /* 12 PM_MRK_LSU_DERAT_MISS */
- 0, /* 14 */
- 0, /* 16 */
- 0x0c, /* 18 PM_THRESH_TIMEO, PM_MRK_INST_FIN */
- 0x0f, /* 1a PM_MRK_INST_DISP, PM_MRK_{FXU,FPU,LSU}_FIN */
- 0x01, /* 1c PM_MRK_INST_ISSUED */
- 0, /* 1e */
- 0, /* 20 */
- 0, /* 22 */
- 0, /* 24 */
- 0, /* 26 */
- 0x15, /* 28 PM_MRK_DATA_FROM_L2MISS, PM_MRK_DATA_FROM_L3MISS */
- 0, /* 2a */
- 0, /* 2c */
- 0, /* 2e */
- 0x4f, /* 30 */
- 0x7f, /* 32 */
- 0x4f, /* 34 */
- 0x5f, /* 36 */
- 0x6f, /* 38 */
- 0x4f, /* 3a */
- 0, /* 3c */
- 0x08, /* 3e PM_MRK_INST_TIMEO */
- 0x1f, /* 40 */
- 0x1f, /* 42 */
- 0x1f, /* 44 */
- 0x1f, /* 46 */
- 0x1f, /* 48 */
- 0x1f, /* 4a */
- 0x1f, /* 4c */
- 0x1f, /* 4e */
- 0, /* 50 */
- 0x05, /* 52 PM_MRK_BR_TAKEN, PM_MRK_BR_MPRED */
- 0x1c, /* 54 PM_MRK_PTEG_FROM_L3MISS, PM_MRK_PTEG_FROM_L2MISS */
- 0x02, /* 56 PM_MRK_LD_MISS_L1 */
- 0, /* 58 */
- 0, /* 5a */
- 0, /* 5c */
- 0, /* 5e */
-};
-
-/*
- * Masks showing for each unit which bits are marked events.
- * These masks are in LE order, i.e. 0x00000001 is byte 0, bit 0.
- */
-static u32 marked_bus_events[16] = {
- 0x01000000, /* direct events set 1: byte 3 bit 0 */
- 0x00010000, /* direct events set 2: byte 2 bit 0 */
- 0, 0, 0, 0, /* IDU, IFU, nest: nothing */
- 0x00000088, /* VMX set 1: byte 0 bits 3, 7 */
- 0x000000c0, /* VMX set 2: byte 0 bits 4-7 */
- 0x04010000, /* LSU set 1: byte 2 bit 0, byte 3 bit 2 */
- 0xff010000u, /* LSU set 2: byte 2 bit 0, all of byte 3 */
- 0, /* LSU set 3 */
- 0x00000010, /* VMX set 3: byte 0 bit 4 */
- 0, /* BFP set 1 */
- 0x00000022, /* BFP set 2: byte 0 bits 1, 5 */
- 0, 0
-};
-
-/*
- * Returns 1 if event counts things relating to marked instructions
- * and thus needs the MMCRA_SAMPLE_ENABLE bit set, or 0 if not.
- */
-static int power6_marked_instr_event(u64 event)
-{
- int pmc, psel, ptype;
- int bit, byte, unit;
- u32 mask;
-
- pmc = (event >> PM_PMC_SH) & PM_PMC_MSK;
- psel = (event & PM_PMCSEL_MSK) >> 1; /* drop edge/level bit */
- if (pmc >= 5)
- return 0;
-
- bit = -1;
- if (psel < sizeof(direct_event_is_marked)) {
- ptype = direct_event_is_marked[psel];
- if (pmc == 0 || !(ptype & (1 << (pmc - 1))))
- return 0;
- ptype >>= 4;
- if (ptype == 0)
- return 1;
- if (ptype == 1)
- bit = 0;
- else
- bit = ptype ^ (pmc - 1);
- } else if ((psel & 0x48) == 0x40)
- bit = psel & 7;
-
- if (!(event & PM_BUSEVENT_MSK) || bit == -1)
- return 0;
-
- byte = (event >> PM_BYTE_SH) & PM_BYTE_MSK;
- unit = (event >> PM_UNIT_SH) & PM_UNIT_MSK;
- mask = marked_bus_events[unit];
- return (mask >> (byte * 8 + bit)) & 1;
-}
-
-/*
- * Assign PMC numbers and compute MMCR1 value for a set of events
- */
-static int p6_compute_mmcr(u64 event[], int n_ev,
- unsigned int hwc[], unsigned long mmcr[])
-{
- unsigned long mmcr1 = 0;
- unsigned long mmcra = MMCRA_SDAR_DCACHE_MISS | MMCRA_SDAR_ERAT_MISS;
- int i;
- unsigned int pmc, ev, b, u, s, psel;
- unsigned int ttmset = 0;
- unsigned int pmc_inuse = 0;
-
- if (n_ev > 6)
- return -1;
- for (i = 0; i < n_ev; ++i) {
- pmc = (event[i] >> PM_PMC_SH) & PM_PMC_MSK;
- if (pmc) {
- if (pmc_inuse & (1 << (pmc - 1)))
- return -1; /* collision! */
- pmc_inuse |= 1 << (pmc - 1);
- }
- }
- for (i = 0; i < n_ev; ++i) {
- ev = event[i];
- pmc = (ev >> PM_PMC_SH) & PM_PMC_MSK;
- if (pmc) {
- --pmc;
- } else {
- /* can go on any PMC; find a free one */
- for (pmc = 0; pmc < 4; ++pmc)
- if (!(pmc_inuse & (1 << pmc)))
- break;
- if (pmc >= 4)
- return -1;
- pmc_inuse |= 1 << pmc;
- }
- hwc[i] = pmc;
- psel = ev & PM_PMCSEL_MSK;
- if (ev & PM_BUSEVENT_MSK) {
- /* this event uses the event bus */
- b = (ev >> PM_BYTE_SH) & PM_BYTE_MSK;
- u = (ev >> PM_UNIT_SH) & PM_UNIT_MSK;
- /* check for conflict on this byte of event bus */
- if ((ttmset & (1 << b)) && MMCR1_TTMSEL(mmcr1, b) != u)
- return -1;
- mmcr1 |= (unsigned long)u << MMCR1_TTMSEL_SH(b);
- ttmset |= 1 << b;
- if (u == 5) {
- /* Nest events have a further mux */
- s = (ev >> PM_SUBUNIT_SH) & PM_SUBUNIT_MSK;
- if ((ttmset & 0x10) &&
- MMCR1_NESTSEL(mmcr1) != s)
- return -1;
- ttmset |= 0x10;
- mmcr1 |= (unsigned long)s << MMCR1_NESTSEL_SH;
- }
- if (0x30 <= psel && psel <= 0x3d) {
- /* these need the PMCx_ADDR_SEL bits */
- if (b >= 2)
- mmcr1 |= MMCR1_PMC1_ADDR_SEL >> pmc;
- }
- /* bus select values are different for PMC3/4 */
- if (pmc >= 2 && (psel & 0x90) == 0x80)
- psel ^= 0x20;
- }
- if (ev & PM_LLA) {
- mmcr1 |= MMCR1_PMC1_LLA >> pmc;
- if (ev & PM_LLAV)
- mmcr1 |= MMCR1_PMC1_LLA_VALUE >> pmc;
- }
- if (power6_marked_instr_event(event[i]))
- mmcra |= MMCRA_SAMPLE_ENABLE;
- if (pmc < 4)
- mmcr1 |= (unsigned long)psel << MMCR1_PMCSEL_SH(pmc);
- }
- mmcr[0] = 0;
- if (pmc_inuse & 1)
- mmcr[0] = MMCR0_PMC1CE;
- if (pmc_inuse & 0xe)
- mmcr[0] |= MMCR0_PMCjCE;
- mmcr[1] = mmcr1;
- mmcr[2] = mmcra;
- return 0;
-}
-
-/*
- * Layout of constraint bits:
- *
- * 0-1 add field: number of uses of PMC1 (max 1)
- * 2-3, 4-5, 6-7, 8-9, 10-11: ditto for PMC2, 3, 4, 5, 6
- * 12-15 add field: number of uses of PMC1-4 (max 4)
- * 16-19 select field: unit on byte 0 of event bus
- * 20-23, 24-27, 28-31 ditto for bytes 1, 2, 3
- * 32-34 select field: nest (subunit) event selector
- */
-static int p6_get_constraint(u64 event, unsigned long *maskp,
- unsigned long *valp)
-{
- int pmc, byte, sh, subunit;
- unsigned long mask = 0, value = 0;
-
- pmc = (event >> PM_PMC_SH) & PM_PMC_MSK;
- if (pmc) {
- if (pmc > 4 && !(event == 0x500009 || event == 0x600005))
- return -1;
- sh = (pmc - 1) * 2;
- mask |= 2 << sh;
- value |= 1 << sh;
- }
- if (event & PM_BUSEVENT_MSK) {
- byte = (event >> PM_BYTE_SH) & PM_BYTE_MSK;
- sh = byte * 4 + (16 - PM_UNIT_SH);
- mask |= PM_UNIT_MSKS << sh;
- value |= (unsigned long)(event & PM_UNIT_MSKS) << sh;
- if ((event & PM_UNIT_MSKS) == (5 << PM_UNIT_SH)) {
- subunit = (event >> PM_SUBUNIT_SH) & PM_SUBUNIT_MSK;
- mask |= (unsigned long)PM_SUBUNIT_MSK << 32;
- value |= (unsigned long)subunit << 32;
- }
- }
- if (pmc <= 4) {
- mask |= 0x8000; /* add field for count of PMC1-4 uses */
- value |= 0x1000;
- }
- *maskp = mask;
- *valp = value;
- return 0;
-}
-
-static int p6_limited_pmc_event(u64 event)
-{
- int pmc = (event >> PM_PMC_SH) & PM_PMC_MSK;
-
- return pmc == 5 || pmc == 6;
-}
-
-#define MAX_ALT 4 /* at most 4 alternatives for any event */
-
-static const unsigned int event_alternatives[][MAX_ALT] = {
- { 0x0130e8, 0x2000f6, 0x3000fc }, /* PM_PTEG_RELOAD_VALID */
- { 0x080080, 0x10000d, 0x30000c, 0x4000f0 }, /* PM_LD_MISS_L1 */
- { 0x080088, 0x200054, 0x3000f0 }, /* PM_ST_MISS_L1 */
- { 0x10000a, 0x2000f4, 0x600005 }, /* PM_RUN_CYC */
- { 0x10000b, 0x2000f5 }, /* PM_RUN_COUNT */
- { 0x10000e, 0x400010 }, /* PM_PURR */
- { 0x100010, 0x4000f8 }, /* PM_FLUSH */
- { 0x10001a, 0x200010 }, /* PM_MRK_INST_DISP */
- { 0x100026, 0x3000f8 }, /* PM_TB_BIT_TRANS */
- { 0x100054, 0x2000f0 }, /* PM_ST_FIN */
- { 0x100056, 0x2000fc }, /* PM_L1_ICACHE_MISS */
- { 0x1000f0, 0x40000a }, /* PM_INST_IMC_MATCH_CMPL */
- { 0x1000f8, 0x200008 }, /* PM_GCT_EMPTY_CYC */
- { 0x1000fc, 0x400006 }, /* PM_LSU_DERAT_MISS_CYC */
- { 0x20000e, 0x400007 }, /* PM_LSU_DERAT_MISS */
- { 0x200012, 0x300012 }, /* PM_INST_DISP */
- { 0x2000f2, 0x3000f2 }, /* PM_INST_DISP */
- { 0x2000f8, 0x300010 }, /* PM_EXT_INT */
- { 0x2000fe, 0x300056 }, /* PM_DATA_FROM_L2MISS */
- { 0x2d0030, 0x30001a }, /* PM_MRK_FPU_FIN */
- { 0x30000a, 0x400018 }, /* PM_MRK_INST_FIN */
- { 0x3000f6, 0x40000e }, /* PM_L1_DCACHE_RELOAD_VALID */
- { 0x3000fe, 0x400056 }, /* PM_DATA_FROM_L3MISS */
-};
-
-/*
- * This could be made more efficient with a binary search on
- * a presorted list, if necessary
- */
-static int find_alternatives_list(u64 event)
-{
- int i, j;
- unsigned int alt;
-
- for (i = 0; i < ARRAY_SIZE(event_alternatives); ++i) {
- if (event < event_alternatives[i][0])
- return -1;
- for (j = 0; j < MAX_ALT; ++j) {
- alt = event_alternatives[i][j];
- if (!alt || event < alt)
- break;
- if (event == alt)
- return i;
- }
- }
- return -1;
-}
-
-static int p6_get_alternatives(u64 event, unsigned int flags, u64 alt[])
-{
- int i, j, nlim;
- unsigned int psel, pmc;
- unsigned int nalt = 1;
- u64 aevent;
-
- alt[0] = event;
- nlim = p6_limited_pmc_event(event);
-
- /* check the alternatives table */
- i = find_alternatives_list(event);
- if (i >= 0) {
- /* copy out alternatives from list */
- for (j = 0; j < MAX_ALT; ++j) {
- aevent = event_alternatives[i][j];
- if (!aevent)
- break;
- if (aevent != event)
- alt[nalt++] = aevent;
- nlim += p6_limited_pmc_event(aevent);
- }
-
- } else {
- /* Check for alternative ways of computing sum events */
- /* PMCSEL 0x32 counter N == PMCSEL 0x34 counter 5-N */
- psel = event & (PM_PMCSEL_MSK & ~1); /* ignore edge bit */
- pmc = (event >> PM_PMC_SH) & PM_PMC_MSK;
- if (pmc && (psel == 0x32 || psel == 0x34))
- alt[nalt++] = ((event ^ 0x6) & ~PM_PMC_MSKS) |
- ((5 - pmc) << PM_PMC_SH);
-
- /* PMCSEL 0x38 counter N == PMCSEL 0x3a counter N+/-2 */
- if (pmc && (psel == 0x38 || psel == 0x3a))
- alt[nalt++] = ((event ^ 0x2) & ~PM_PMC_MSKS) |
- ((pmc > 2? pmc - 2: pmc + 2) << PM_PMC_SH);
- }
-
- if (flags & PPMU_ONLY_COUNT_RUN) {
- /*
- * We're only counting in RUN state,
- * so PM_CYC is equivalent to PM_RUN_CYC,
- * PM_INST_CMPL === PM_RUN_INST_CMPL, PM_PURR === PM_RUN_PURR.
- * This doesn't include alternatives that don't provide
- * any extra flexibility in assigning PMCs (e.g.
- * 0x10000a for PM_RUN_CYC vs. 0x1e for PM_CYC).
- * Note that even with these additional alternatives
- * we never end up with more than 4 alternatives for any event.
- */
- j = nalt;
- for (i = 0; i < nalt; ++i) {
- switch (alt[i]) {
- case 0x1e: /* PM_CYC */
- alt[j++] = 0x600005; /* PM_RUN_CYC */
- ++nlim;
- break;
- case 0x10000a: /* PM_RUN_CYC */
- alt[j++] = 0x1e; /* PM_CYC */
- break;
- case 2: /* PM_INST_CMPL */
- alt[j++] = 0x500009; /* PM_RUN_INST_CMPL */
- ++nlim;
- break;
- case 0x500009: /* PM_RUN_INST_CMPL */
- alt[j++] = 2; /* PM_INST_CMPL */
- break;
- case 0x10000e: /* PM_PURR */
- alt[j++] = 0x4000f4; /* PM_RUN_PURR */
- break;
- case 0x4000f4: /* PM_RUN_PURR */
- alt[j++] = 0x10000e; /* PM_PURR */
- break;
- }
- }
- nalt = j;
- }
-
- if (!(flags & PPMU_LIMITED_PMC_OK) && nlim) {
- /* remove the limited PMC events */
- j = 0;
- for (i = 0; i < nalt; ++i) {
- if (!p6_limited_pmc_event(alt[i])) {
- alt[j] = alt[i];
- ++j;
- }
- }
- nalt = j;
- } else if ((flags & PPMU_LIMITED_PMC_REQD) && nlim < nalt) {
- /* remove all but the limited PMC events */
- j = 0;
- for (i = 0; i < nalt; ++i) {
- if (p6_limited_pmc_event(alt[i])) {
- alt[j] = alt[i];
- ++j;
- }
- }
- nalt = j;
- }
-
- return nalt;
-}
-
-static void p6_disable_pmc(unsigned int pmc, unsigned long mmcr[])
-{
- /* Set PMCxSEL to 0 to disable PMCx */
- if (pmc <= 3)
- mmcr[1] &= ~(0xffUL << MMCR1_PMCSEL_SH(pmc));
-}
-
-static int power6_generic_events[] = {
- [PERF_COUNT_HW_CPU_CYCLES] = 0x1e,
- [PERF_COUNT_HW_INSTRUCTIONS] = 2,
- [PERF_COUNT_HW_CACHE_REFERENCES] = 0x280030, /* LD_REF_L1 */
- [PERF_COUNT_HW_CACHE_MISSES] = 0x30000c, /* LD_MISS_L1 */
- [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x410a0, /* BR_PRED */
- [PERF_COUNT_HW_BRANCH_MISSES] = 0x400052, /* BR_MPRED */
-};
-
-#define C(x) PERF_COUNT_HW_CACHE_##x
-
-/*
- * Table of generalized cache-related events.
- * 0 means not supported, -1 means nonsensical, other values
- * are event codes.
- * The "DTLB" and "ITLB" events relate to the DERAT and IERAT.
- */
-static int power6_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
- [C(L1D)] = { /* RESULT_ACCESS RESULT_MISS */
- [C(OP_READ)] = { 0x280030, 0x80080 },
- [C(OP_WRITE)] = { 0x180032, 0x80088 },
- [C(OP_PREFETCH)] = { 0x810a4, 0 },
- },
- [C(L1I)] = { /* RESULT_ACCESS RESULT_MISS */
- [C(OP_READ)] = { 0, 0x100056 },
- [C(OP_WRITE)] = { -1, -1 },
- [C(OP_PREFETCH)] = { 0x4008c, 0 },
- },
- [C(LL)] = { /* RESULT_ACCESS RESULT_MISS */
- [C(OP_READ)] = { 0x150730, 0x250532 },
- [C(OP_WRITE)] = { 0x250432, 0x150432 },
- [C(OP_PREFETCH)] = { 0x810a6, 0 },
- },
- [C(DTLB)] = { /* RESULT_ACCESS RESULT_MISS */
- [C(OP_READ)] = { 0, 0x20000e },
- [C(OP_WRITE)] = { -1, -1 },
- [C(OP_PREFETCH)] = { -1, -1 },
- },
- [C(ITLB)] = { /* RESULT_ACCESS RESULT_MISS */
- [C(OP_READ)] = { 0, 0x420ce },
- [C(OP_WRITE)] = { -1, -1 },
- [C(OP_PREFETCH)] = { -1, -1 },
- },
- [C(BPU)] = { /* RESULT_ACCESS RESULT_MISS */
- [C(OP_READ)] = { 0x430e6, 0x400052 },
- [C(OP_WRITE)] = { -1, -1 },
- [C(OP_PREFETCH)] = { -1, -1 },
- },
- [C(NODE)] = { /* RESULT_ACCESS RESULT_MISS */
- [C(OP_READ)] = { -1, -1 },
- [C(OP_WRITE)] = { -1, -1 },
- [C(OP_PREFETCH)] = { -1, -1 },
- },
-};
-
-static struct power_pmu power6_pmu = {
- .name = "POWER6",
- .n_counter = 6,
- .max_alternatives = MAX_ALT,
- .add_fields = 0x1555,
- .test_adder = 0x3000,
- .compute_mmcr = p6_compute_mmcr,
- .get_constraint = p6_get_constraint,
- .get_alternatives = p6_get_alternatives,
- .disable_pmc = p6_disable_pmc,
- .limited_pmc_event = p6_limited_pmc_event,
- .flags = PPMU_LIMITED_PMC5_6 | PPMU_ALT_SIPR,
- .n_generic = ARRAY_SIZE(power6_generic_events),
- .generic_events = power6_generic_events,
- .cache_events = &power6_cache_events,
-};
-
-static int __init init_power6_pmu(void)
-{
- if (!cur_cpu_spec->oprofile_cpu_type ||
- strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power6"))
- return -ENODEV;
-
- return register_power_pmu(&power6_pmu);
-}
-
-early_initcall(init_power6_pmu);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 22:36:31 +0000