mirror of
https://github.com/freebsd/freebsd-src
synced 2024-09-06 17:18:32 +00:00
Add ARMv7 performance monitoring counters.
Differential Revision: https://reviews.freebsd.org/D1687 Reviewed by: rpaulo Sponsored by: DARPA, AFRL
This commit is contained in:
parent
21cee0c5ce
commit
6411d14d62
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=277835
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@ -74,10 +74,14 @@ static int p6_allocate_pmc(enum pmc_event _pe, char *_ctrspec,
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static int tsc_allocate_pmc(enum pmc_event _pe, char *_ctrspec,
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struct pmc_op_pmcallocate *_pmc_config);
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#endif
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#if defined(__arm__)
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#if defined(__XSCALE__)
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static int xscale_allocate_pmc(enum pmc_event _pe, char *_ctrspec,
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struct pmc_op_pmcallocate *_pmc_config);
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#endif
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static int armv7_allocate_pmc(enum pmc_event _pe, char *_ctrspec,
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struct pmc_op_pmcallocate *_pmc_config);
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#endif
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#if defined(__mips__)
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static int mips_allocate_pmc(enum pmc_event _pe, char* ctrspec,
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struct pmc_op_pmcallocate *_pmc_config);
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@ -153,6 +157,7 @@ PMC_CLASSDEP_TABLE(p4, P4);
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PMC_CLASSDEP_TABLE(p5, P5);
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PMC_CLASSDEP_TABLE(p6, P6);
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PMC_CLASSDEP_TABLE(xscale, XSCALE);
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PMC_CLASSDEP_TABLE(armv7, ARMV7);
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PMC_CLASSDEP_TABLE(mips24k, MIPS24K);
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PMC_CLASSDEP_TABLE(octeon, OCTEON);
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PMC_CLASSDEP_TABLE(ucf, UCF);
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@ -286,6 +291,7 @@ PMC_MDEP_TABLE(p4, P4, PMC_CLASS_SOFT, PMC_CLASS_TSC);
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PMC_MDEP_TABLE(p5, P5, PMC_CLASS_SOFT, PMC_CLASS_TSC);
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PMC_MDEP_TABLE(p6, P6, PMC_CLASS_SOFT, PMC_CLASS_TSC);
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PMC_MDEP_TABLE(xscale, XSCALE, PMC_CLASS_SOFT, PMC_CLASS_XSCALE);
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PMC_MDEP_TABLE(armv7, ARMV7, PMC_CLASS_SOFT, PMC_CLASS_ARMV7);
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PMC_MDEP_TABLE(mips24k, MIPS24K, PMC_CLASS_SOFT, PMC_CLASS_MIPS24K);
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PMC_MDEP_TABLE(octeon, OCTEON, PMC_CLASS_SOFT, PMC_CLASS_OCTEON);
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PMC_MDEP_TABLE(ppc7450, PPC7450, PMC_CLASS_SOFT, PMC_CLASS_PPC7450);
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@ -346,9 +352,12 @@ PMC_CLASS_TABLE_DESC(p6, P6, p6, p6);
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#if defined(__i386__) || defined(__amd64__)
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PMC_CLASS_TABLE_DESC(tsc, TSC, tsc, tsc);
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#endif
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#if defined(__arm__)
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#if defined(__XSCALE__)
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PMC_CLASS_TABLE_DESC(xscale, XSCALE, xscale, xscale);
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#endif
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PMC_CLASS_TABLE_DESC(armv7, ARMV7, armv7, armv7);
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#endif
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#if defined(__mips__)
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PMC_CLASS_TABLE_DESC(mips24k, MIPS24K, mips24k, mips);
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PMC_CLASS_TABLE_DESC(octeon, OCTEON, octeon, mips);
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@ -2371,6 +2380,7 @@ soft_allocate_pmc(enum pmc_event pe, char *ctrspec,
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return (0);
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}
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#if defined(__arm__)
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#if defined(__XSCALE__)
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static struct pmc_event_alias xscale_aliases[] = {
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@ -2394,6 +2404,25 @@ xscale_allocate_pmc(enum pmc_event pe, char *ctrspec __unused,
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}
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#endif
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static struct pmc_event_alias armv7_aliases[] = {
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EV_ALIAS("dc-misses", "L1_DCACHE_REFILL"),
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EV_ALIAS("ic-misses", "L1_ICACHE_REFILL"),
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EV_ALIAS("instructions", "INSTR_EXECUTED"),
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EV_ALIAS(NULL, NULL)
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};
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static int
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armv7_allocate_pmc(enum pmc_event pe, char *ctrspec __unused,
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struct pmc_op_pmcallocate *pmc_config __unused)
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{
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switch (pe) {
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default:
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break;
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}
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return (0);
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}
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#endif
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#if defined(__mips__)
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static struct pmc_event_alias mips24k_aliases[] = {
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@ -2886,6 +2915,10 @@ pmc_event_names_of_class(enum pmc_class cl, const char ***eventnames,
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ev = xscale_event_table;
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count = PMC_EVENT_TABLE_SIZE(xscale);
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break;
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case PMC_CLASS_ARMV7:
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ev = armv7_event_table;
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count = PMC_EVENT_TABLE_SIZE(armv7);
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break;
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case PMC_CLASS_MIPS24K:
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ev = mips24k_event_table;
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count = PMC_EVENT_TABLE_SIZE(mips24k);
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@ -3163,11 +3196,17 @@ pmc_init(void)
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case PMC_CPU_GENERIC:
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PMC_MDEP_INIT(generic);
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break;
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#if defined(__arm__)
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#if defined(__XSCALE__)
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case PMC_CPU_INTEL_XSCALE:
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PMC_MDEP_INIT(xscale);
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pmc_class_table[n] = &xscale_class_table_descr;
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break;
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#endif
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case PMC_CPU_ARMV7:
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PMC_MDEP_INIT(armv7);
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pmc_class_table[n] = &armv7_class_table_descr;
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break;
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#endif
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#if defined(__mips__)
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case PMC_CPU_MIPS_24K:
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@ -3369,6 +3408,9 @@ _pmc_name_of_event(enum pmc_event pe, enum pmc_cputype cpu)
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} else if (pe >= PMC_EV_XSCALE_FIRST && pe <= PMC_EV_XSCALE_LAST) {
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ev = xscale_event_table;
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evfence = xscale_event_table + PMC_EVENT_TABLE_SIZE(xscale);
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} else if (pe >= PMC_EV_ARMV7_FIRST && pe <= PMC_EV_ARMV7_LAST) {
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ev = armv7_event_table;
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evfence = armv7_event_table + PMC_EVENT_TABLE_SIZE(armv7);
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} else if (pe >= PMC_EV_MIPS24K_FIRST && pe <= PMC_EV_MIPS24K_LAST) {
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ev = mips24k_event_table;
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evfence = mips24k_event_table + PMC_EVENT_TABLE_SIZE(mips24k);
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@ -37,6 +37,7 @@
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*/
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#include "opt_platform.h"
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#include "opt_hwpmc_hooks.h"
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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@ -50,6 +51,8 @@ __FBSDID("$FreeBSD$");
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#include <sys/bus.h>
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#include <sys/interrupt.h>
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#include <sys/conf.h>
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#include <sys/pmc.h>
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#include <sys/pmckern.h>
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#include <machine/atomic.h>
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#include <machine/intr.h>
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@ -190,6 +193,10 @@ arm_irq_handler(struct trapframe *frame)
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arm_mask_irq(i);
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}
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}
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#ifdef HWPMC_HOOKS
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if (pmc_hook && (PCPU_GET(curthread)->td_pflags & TDP_CALLCHAIN))
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pmc_hook(PCPU_GET(curthread), PMC_FN_USER_CALLCHAIN, frame);
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#endif
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}
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/*
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@ -30,12 +30,15 @@
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#define _MACHINE_PMC_MDEP_H_
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#define PMC_MDEP_CLASS_INDEX_XSCALE 1
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#define PMC_MDEP_CLASS_INDEX_ARMV7 1
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/*
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* On the ARM platform we support the following PMCs.
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*
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* XSCALE Intel XScale processors
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* ARMV7 ARM Cortex-A processors
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*/
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#include <dev/hwpmc/hwpmc_xscale.h>
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#include <dev/hwpmc/hwpmc_armv7.h>
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union pmc_md_op_pmcallocate {
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uint64_t __pad[4];
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@ -48,6 +51,7 @@ union pmc_md_op_pmcallocate {
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#ifdef _KERNEL
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union pmc_md_pmc {
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struct pmc_md_xscale_pmc pm_xscale;
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struct pmc_md_armv7_pmc pm_armv7;
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};
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#define PMC_IN_KERNEL_STACK(S,START,END) \
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@ -73,6 +77,8 @@ union pmc_md_pmc {
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*/
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struct pmc_mdep *pmc_xscale_initialize(void);
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void pmc_xscale_finalize(struct pmc_mdep *_md);
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struct pmc_mdep *pmc_armv7_initialize(void);
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void pmc_armv7_finalize(struct pmc_mdep *_md);
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#endif /* _KERNEL */
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#endif /* !_MACHINE_PMC_MDEP_H_ */
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@ -9,6 +9,7 @@ arm/arm/cpufunc_asm_armv5.S standard
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arm/arm/cpufunc_asm_arm10.S standard
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arm/arm/cpufunc_asm_arm11.S standard
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arm/arm/cpufunc_asm_armv7.S standard
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arm/arm/pmu.c optional hwpmc
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arm/ti/ti_common.c standard
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arm/ti/ti_cpuid.c standard
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@ -70,6 +70,7 @@ crypto/des/des_enc.c optional crypto | ipsec | netsmb
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dev/fb/fb.c optional sc
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dev/fdt/fdt_arm_platform.c optional platform fdt
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dev/hwpmc/hwpmc_arm.c optional hwpmc
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dev/hwpmc/hwpmc_armv7.c optional hwpmc
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dev/kbd/kbd.c optional sc | vt
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dev/syscons/scgfbrndr.c optional sc
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dev/syscons/scterm-teken.c optional sc
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@ -47,9 +47,12 @@ pmc_md_initialize()
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#ifdef CPU_XSCALE_IXP425
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if (cpu_class == CPU_CLASS_XSCALE)
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return pmc_xscale_initialize();
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else
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#endif
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return NULL;
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#ifdef CPU_CORTEXA
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if (cpu_class == CPU_CLASS_CORTEXA)
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return pmc_armv7_initialize();
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#endif
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return NULL;
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}
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void
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@ -62,6 +65,10 @@ pmc_md_finalize(struct pmc_mdep *md)
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KASSERT(0, ("[arm,%d] Unknown CPU Class 0x%x", __LINE__,
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cpu_class));
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#endif
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#ifdef CPU_CORTEXA
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if (cpu_class == CPU_CLASS_CORTEXA)
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pmc_armv7_finalize(md);
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#endif
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}
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int
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652
sys/dev/hwpmc/hwpmc_armv7.c
Normal file
652
sys/dev/hwpmc/hwpmc_armv7.c
Normal file
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@ -0,0 +1,652 @@
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/*-
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* Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
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* All rights reserved.
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*
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* This software was developed by SRI International and the University of
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* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
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* ("CTSRD"), as part of the DARPA CRASH research programme.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/pmc.h>
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#include <sys/pmckern.h>
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#include <machine/pmc_mdep.h>
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#include <machine/cpu.h>
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#define CPU_ID_CORTEX_VER_MASK 0xff
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#define CPU_ID_CORTEX_VER_SHIFT 4
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static int armv7_npmcs;
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struct armv7_event_code_map {
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enum pmc_event pe_ev;
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uint8_t pe_code;
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};
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const struct armv7_event_code_map armv7_event_codes[] = {
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{ PMC_EV_ARMV7_PMNC_SW_INCR, 0x00 },
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{ PMC_EV_ARMV7_L1_ICACHE_REFILL, 0x01 },
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{ PMC_EV_ARMV7_ITLB_REFILL, 0x02 },
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{ PMC_EV_ARMV7_L1_DCACHE_REFILL, 0x03 },
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{ PMC_EV_ARMV7_L1_DCACHE_ACCESS, 0x04 },
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{ PMC_EV_ARMV7_DTLB_REFILL, 0x05 },
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{ PMC_EV_ARMV7_MEM_READ, 0x06 },
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{ PMC_EV_ARMV7_MEM_WRITE, 0x07 },
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{ PMC_EV_ARMV7_INSTR_EXECUTED, 0x08 },
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{ PMC_EV_ARMV7_EXC_TAKEN, 0x09 },
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{ PMC_EV_ARMV7_EXC_EXECUTED, 0x0A },
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{ PMC_EV_ARMV7_CID_WRITE, 0x0B },
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{ PMC_EV_ARMV7_PC_WRITE, 0x0C },
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{ PMC_EV_ARMV7_PC_IMM_BRANCH, 0x0D },
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{ PMC_EV_ARMV7_PC_PROC_RETURN, 0x0E },
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{ PMC_EV_ARMV7_MEM_UNALIGNED_ACCESS, 0x0F },
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{ PMC_EV_ARMV7_PC_BRANCH_MIS_PRED, 0x10 },
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{ PMC_EV_ARMV7_CLOCK_CYCLES, 0x11 },
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{ PMC_EV_ARMV7_PC_BRANCH_PRED, 0x12 },
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{ PMC_EV_ARMV7_MEM_ACCESS, 0x13 },
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{ PMC_EV_ARMV7_L1_ICACHE_ACCESS, 0x14 },
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{ PMC_EV_ARMV7_L1_DCACHE_WB, 0x15 },
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{ PMC_EV_ARMV7_L2_CACHE_ACCESS, 0x16 },
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{ PMC_EV_ARMV7_L2_CACHE_REFILL, 0x17 },
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{ PMC_EV_ARMV7_L2_CACHE_WB, 0x18 },
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{ PMC_EV_ARMV7_BUS_ACCESS, 0x19 },
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{ PMC_EV_ARMV7_MEM_ERROR, 0x1A },
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{ PMC_EV_ARMV7_INSTR_SPEC, 0x1B },
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{ PMC_EV_ARMV7_TTBR_WRITE, 0x1C },
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{ PMC_EV_ARMV7_BUS_CYCLES, 0x1D },
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{ PMC_EV_ARMV7_CPU_CYCLES, 0xFF },
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};
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const int armv7_event_codes_size =
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sizeof(armv7_event_codes) / sizeof(armv7_event_codes[0]);
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/*
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* Per-processor information.
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*/
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struct armv7_cpu {
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struct pmc_hw *pc_armv7pmcs;
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int cortex_ver;
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};
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static struct armv7_cpu **armv7_pcpu;
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/*
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* Performance Monitor Control Register
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*/
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static __inline uint32_t
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armv7_pmnc_read(void)
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{
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uint32_t reg;
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__asm __volatile("mrc p15, 0, %0, c9, c12, 0" : "=r" (reg));
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return (reg);
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}
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static __inline void
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armv7_pmnc_write(uint32_t reg)
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{
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__asm __volatile("mcr p15, 0, %0, c9, c12, 0" : : "r" (reg));
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}
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/*
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* Clock Counter Register (PMCCNTR)
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* Counts processor clock cycles.
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*/
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static __inline uint32_t
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armv7_ccnt_read(void)
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{
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uint32_t reg;
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__asm __volatile("mrc p15, 0, %0, c9, c13, 0" : "=r" (reg));
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return (reg);
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}
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static __inline void
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armv7_ccnt_write(uint32_t reg)
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{
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__asm __volatile("mcr p15, 0, %0, c9, c13, 0" : : "r" (reg));
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}
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/*
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* Interrupt Enable Set Register
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*/
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static __inline void
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armv7_interrupt_enable(uint32_t pmc)
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{
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uint32_t reg;
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reg = (1 << pmc);
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|
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__asm __volatile("mcr p15, 0, %0, c9, c14, 1" : : "r" (reg));
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}
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/*
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* Interrupt Clear Set Register
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*/
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static __inline void
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armv7_interrupt_disable(uint32_t pmc)
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{
|
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uint32_t reg;
|
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|
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reg = (1 << pmc);
|
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|
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__asm __volatile("mcr p15, 0, %0, c9, c14, 2" : : "r" (reg));
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}
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|
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/*
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* Overflow Flag Register
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*/
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static __inline uint32_t
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armv7_flag_read(void)
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{
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uint32_t reg;
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|
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__asm __volatile("mrc p15, 0, %0, c9, c12, 3" : "=r" (reg));
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|
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return (reg);
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}
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static __inline void
|
||||
armv7_flag_write(uint32_t reg)
|
||||
{
|
||||
|
||||
__asm __volatile("mcr p15, 0, %0, c9, c12, 3" : : "r" (reg));
|
||||
}
|
||||
|
||||
/*
|
||||
* Event Selection Register
|
||||
*/
|
||||
static __inline void
|
||||
armv7_evtsel_write(uint32_t reg)
|
||||
{
|
||||
|
||||
__asm __volatile("mcr p15, 0, %0, c9, c13, 1" : : "r" (reg));
|
||||
}
|
||||
|
||||
/*
|
||||
* PMSELR
|
||||
*/
|
||||
static __inline void
|
||||
armv7_select_counter(unsigned int pmc)
|
||||
{
|
||||
|
||||
__asm __volatile("mcr p15, 0, %0, c9, c12, 5" : : "r" (pmc));
|
||||
}
|
||||
|
||||
/*
|
||||
* Counter Set Enable Register
|
||||
*/
|
||||
static __inline void
|
||||
armv7_counter_enable(unsigned int pmc)
|
||||
{
|
||||
uint32_t reg;
|
||||
|
||||
reg = (1 << pmc);
|
||||
|
||||
__asm __volatile("mcr p15, 0, %0, c9, c12, 1" : : "r" (reg));
|
||||
}
|
||||
|
||||
/*
|
||||
* Counter Clear Enable Register
|
||||
*/
|
||||
static __inline void
|
||||
armv7_counter_disable(unsigned int pmc)
|
||||
{
|
||||
uint32_t reg;
|
||||
|
||||
reg = (1 << pmc);
|
||||
|
||||
__asm __volatile("mcr p15, 0, %0, c9, c12, 2" : : "r" (reg));
|
||||
}
|
||||
|
||||
/*
|
||||
* Performance Count Register N
|
||||
*/
|
||||
static uint32_t
|
||||
armv7_pmcn_read(unsigned int pmc)
|
||||
{
|
||||
uint32_t reg = 0;
|
||||
|
||||
KASSERT(pmc < 4, ("[armv7,%d] illegal PMC number %d", __LINE__, pmc));
|
||||
|
||||
armv7_select_counter(pmc);
|
||||
__asm __volatile("mrc p15, 0, %0, c9, c13, 2" : "=r" (reg));
|
||||
|
||||
return (reg);
|
||||
}
|
||||
|
||||
static uint32_t
|
||||
armv7_pmcn_write(unsigned int pmc, uint32_t reg)
|
||||
{
|
||||
|
||||
KASSERT(pmc < 4, ("[armv7,%d] illegal PMC number %d", __LINE__, pmc));
|
||||
|
||||
armv7_select_counter(pmc);
|
||||
__asm __volatile("mcr p15, 0, %0, c9, c13, 2" : : "r" (reg));
|
||||
|
||||
return (reg);
|
||||
}
|
||||
|
||||
static int
|
||||
armv7_allocate_pmc(int cpu, int ri, struct pmc *pm,
|
||||
const struct pmc_op_pmcallocate *a)
|
||||
{
|
||||
uint32_t caps, config;
|
||||
struct armv7_cpu *pac;
|
||||
enum pmc_event pe;
|
||||
int i;
|
||||
|
||||
KASSERT(cpu >= 0 && cpu < pmc_cpu_max(),
|
||||
("[armv7,%d] illegal CPU value %d", __LINE__, cpu));
|
||||
KASSERT(ri >= 0 && ri < armv7_npmcs,
|
||||
("[armv7,%d] illegal row index %d", __LINE__, ri));
|
||||
|
||||
pac = armv7_pcpu[cpu];
|
||||
|
||||
caps = a->pm_caps;
|
||||
if (a->pm_class != PMC_CLASS_ARMV7)
|
||||
return (EINVAL);
|
||||
pe = a->pm_ev;
|
||||
|
||||
for (i = 0; i < armv7_event_codes_size; i++) {
|
||||
if (armv7_event_codes[i].pe_ev == pe) {
|
||||
config = armv7_event_codes[i].pe_code;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (i == armv7_event_codes_size)
|
||||
return EINVAL;
|
||||
|
||||
pm->pm_md.pm_armv7.pm_armv7_evsel = config;
|
||||
|
||||
PMCDBG(MDP,ALL,2,"armv7-allocate ri=%d -> config=0x%x", ri, config);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int
|
||||
armv7_read_pmc(int cpu, int ri, pmc_value_t *v)
|
||||
{
|
||||
pmc_value_t tmp;
|
||||
struct pmc *pm;
|
||||
|
||||
KASSERT(cpu >= 0 && cpu < pmc_cpu_max(),
|
||||
("[armv7,%d] illegal CPU value %d", __LINE__, cpu));
|
||||
KASSERT(ri >= 0 && ri < armv7_npmcs,
|
||||
("[armv7,%d] illegal row index %d", __LINE__, ri));
|
||||
|
||||
pm = armv7_pcpu[cpu]->pc_armv7pmcs[ri].phw_pmc;
|
||||
|
||||
if (pm->pm_md.pm_armv7.pm_armv7_evsel == 0xFF)
|
||||
tmp = armv7_ccnt_read();
|
||||
else
|
||||
tmp = armv7_pmcn_read(ri);
|
||||
|
||||
PMCDBG(MDP,REA,2,"armv7-read id=%d -> %jd", ri, tmp);
|
||||
if (PMC_IS_SAMPLING_MODE(PMC_TO_MODE(pm)))
|
||||
*v = ARMV7_PERFCTR_VALUE_TO_RELOAD_COUNT(tmp);
|
||||
else
|
||||
*v = tmp;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
armv7_write_pmc(int cpu, int ri, pmc_value_t v)
|
||||
{
|
||||
struct pmc *pm;
|
||||
|
||||
KASSERT(cpu >= 0 && cpu < pmc_cpu_max(),
|
||||
("[armv7,%d] illegal CPU value %d", __LINE__, cpu));
|
||||
KASSERT(ri >= 0 && ri < armv7_npmcs,
|
||||
("[armv7,%d] illegal row-index %d", __LINE__, ri));
|
||||
|
||||
pm = armv7_pcpu[cpu]->pc_armv7pmcs[ri].phw_pmc;
|
||||
|
||||
if (PMC_IS_SAMPLING_MODE(PMC_TO_MODE(pm)))
|
||||
v = ARMV7_RELOAD_COUNT_TO_PERFCTR_VALUE(v);
|
||||
|
||||
PMCDBG(MDP,WRI,1,"armv7-write cpu=%d ri=%d v=%jx", cpu, ri, v);
|
||||
|
||||
if (pm->pm_md.pm_armv7.pm_armv7_evsel == 0xFF)
|
||||
armv7_ccnt_write(v);
|
||||
else
|
||||
armv7_pmcn_write(ri, v);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
armv7_config_pmc(int cpu, int ri, struct pmc *pm)
|
||||
{
|
||||
struct pmc_hw *phw;
|
||||
|
||||
PMCDBG(MDP,CFG,1, "cpu=%d ri=%d pm=%p", cpu, ri, pm);
|
||||
|
||||
KASSERT(cpu >= 0 && cpu < pmc_cpu_max(),
|
||||
("[armv7,%d] illegal CPU value %d", __LINE__, cpu));
|
||||
KASSERT(ri >= 0 && ri < armv7_npmcs,
|
||||
("[armv7,%d] illegal row-index %d", __LINE__, ri));
|
||||
|
||||
phw = &armv7_pcpu[cpu]->pc_armv7pmcs[ri];
|
||||
|
||||
KASSERT(pm == NULL || phw->phw_pmc == NULL,
|
||||
("[armv7,%d] pm=%p phw->pm=%p hwpmc not unconfigured",
|
||||
__LINE__, pm, phw->phw_pmc));
|
||||
|
||||
phw->phw_pmc = pm;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
armv7_start_pmc(int cpu, int ri)
|
||||
{
|
||||
struct pmc_hw *phw;
|
||||
uint32_t config;
|
||||
struct pmc *pm;
|
||||
|
||||
phw = &armv7_pcpu[cpu]->pc_armv7pmcs[ri];
|
||||
pm = phw->phw_pmc;
|
||||
config = pm->pm_md.pm_armv7.pm_armv7_evsel;
|
||||
|
||||
/*
|
||||
* Configure the event selection.
|
||||
*/
|
||||
armv7_select_counter(ri);
|
||||
armv7_evtsel_write(config);
|
||||
|
||||
/*
|
||||
* Enable the PMC.
|
||||
*/
|
||||
armv7_interrupt_enable(ri);
|
||||
armv7_counter_enable(ri);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
armv7_stop_pmc(int cpu, int ri)
|
||||
{
|
||||
struct pmc_hw *phw;
|
||||
struct pmc *pm;
|
||||
|
||||
phw = &armv7_pcpu[cpu]->pc_armv7pmcs[ri];
|
||||
pm = phw->phw_pmc;
|
||||
|
||||
/*
|
||||
* Disable the PMCs.
|
||||
*/
|
||||
armv7_counter_disable(ri);
|
||||
armv7_interrupt_disable(ri);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
armv7_release_pmc(int cpu, int ri, struct pmc *pmc)
|
||||
{
|
||||
struct pmc_hw *phw;
|
||||
|
||||
KASSERT(cpu >= 0 && cpu < pmc_cpu_max(),
|
||||
("[armv7,%d] illegal CPU value %d", __LINE__, cpu));
|
||||
KASSERT(ri >= 0 && ri < armv7_npmcs,
|
||||
("[armv7,%d] illegal row-index %d", __LINE__, ri));
|
||||
|
||||
phw = &armv7_pcpu[cpu]->pc_armv7pmcs[ri];
|
||||
KASSERT(phw->phw_pmc == NULL,
|
||||
("[armv7,%d] PHW pmc %p non-NULL", __LINE__, phw->phw_pmc));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
armv7_intr(int cpu, struct trapframe *tf)
|
||||
{
|
||||
struct armv7_cpu *pc;
|
||||
int retval, ri;
|
||||
struct pmc *pm;
|
||||
int error;
|
||||
int reg;
|
||||
|
||||
KASSERT(cpu >= 0 && cpu < pmc_cpu_max(),
|
||||
("[armv7,%d] CPU %d out of range", __LINE__, cpu));
|
||||
|
||||
retval = 0;
|
||||
pc = armv7_pcpu[cpu];
|
||||
|
||||
for (ri = 0; ri < armv7_npmcs; ri++) {
|
||||
pm = armv7_pcpu[cpu]->pc_armv7pmcs[ri].phw_pmc;
|
||||
if (pm == NULL)
|
||||
continue;
|
||||
if (!PMC_IS_SAMPLING_MODE(PMC_TO_MODE(pm)))
|
||||
continue;
|
||||
|
||||
/* Check if counter has overflowed */
|
||||
if (pm->pm_md.pm_armv7.pm_armv7_evsel == 0xFF)
|
||||
reg = (1 << 31);
|
||||
else
|
||||
reg = (1 << ri);
|
||||
|
||||
if ((armv7_flag_read() & reg) == 0) {
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Clear Overflow Flag */
|
||||
armv7_flag_write(reg);
|
||||
|
||||
retval = 1; /* Found an interrupting PMC. */
|
||||
if (pm->pm_state != PMC_STATE_RUNNING)
|
||||
continue;
|
||||
|
||||
error = pmc_process_interrupt(cpu, PMC_HR, pm, tf,
|
||||
TRAPF_USERMODE(tf));
|
||||
if (error)
|
||||
armv7_stop_pmc(cpu, ri);
|
||||
|
||||
/* Reload sampling count */
|
||||
armv7_write_pmc(cpu, ri, pm->pm_sc.pm_reloadcount);
|
||||
}
|
||||
|
||||
return (retval);
|
||||
}
|
||||
|
||||
static int
|
||||
armv7_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc)
|
||||
{
|
||||
char armv7_name[PMC_NAME_MAX];
|
||||
struct pmc_hw *phw;
|
||||
int error;
|
||||
|
||||
KASSERT(cpu >= 0 && cpu < pmc_cpu_max(),
|
||||
("[armv7,%d], illegal CPU %d", __LINE__, cpu));
|
||||
KASSERT(ri >= 0 && ri < armv7_npmcs,
|
||||
("[armv7,%d] row-index %d out of range", __LINE__, ri));
|
||||
|
||||
phw = &armv7_pcpu[cpu]->pc_armv7pmcs[ri];
|
||||
snprintf(armv7_name, sizeof(armv7_name), "ARMV7-%d", ri);
|
||||
if ((error = copystr(armv7_name, pi->pm_name, PMC_NAME_MAX,
|
||||
NULL)) != 0)
|
||||
return error;
|
||||
pi->pm_class = PMC_CLASS_ARMV7;
|
||||
if (phw->phw_state & PMC_PHW_FLAG_IS_ENABLED) {
|
||||
pi->pm_enabled = TRUE;
|
||||
*ppmc = phw->phw_pmc;
|
||||
} else {
|
||||
pi->pm_enabled = FALSE;
|
||||
*ppmc = NULL;
|
||||
}
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
armv7_get_config(int cpu, int ri, struct pmc **ppm)
|
||||
{
|
||||
|
||||
*ppm = armv7_pcpu[cpu]->pc_armv7pmcs[ri].phw_pmc;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* XXX don't know what we should do here.
|
||||
*/
|
||||
static int
|
||||
armv7_switch_in(struct pmc_cpu *pc, struct pmc_process *pp)
|
||||
{
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
armv7_switch_out(struct pmc_cpu *pc, struct pmc_process *pp)
|
||||
{
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
armv7_pcpu_init(struct pmc_mdep *md, int cpu)
|
||||
{
|
||||
struct armv7_cpu *pac;
|
||||
struct pmc_hw *phw;
|
||||
struct pmc_cpu *pc;
|
||||
uint32_t pmnc;
|
||||
int first_ri;
|
||||
int cpuid;
|
||||
int i;
|
||||
|
||||
KASSERT(cpu >= 0 && cpu < pmc_cpu_max(),
|
||||
("[armv7,%d] wrong cpu number %d", __LINE__, cpu));
|
||||
PMCDBG(MDP,INI,1,"armv7-init cpu=%d", cpu);
|
||||
|
||||
armv7_pcpu[cpu] = pac = malloc(sizeof(struct armv7_cpu), M_PMC,
|
||||
M_WAITOK|M_ZERO);
|
||||
|
||||
cpuid = cpu_id();
|
||||
pac->cortex_ver = (cpuid >> CPU_ID_CORTEX_VER_SHIFT) & \
|
||||
CPU_ID_CORTEX_VER_MASK;
|
||||
|
||||
pac->pc_armv7pmcs = malloc(sizeof(struct pmc_hw) * armv7_npmcs,
|
||||
M_PMC, M_WAITOK|M_ZERO);
|
||||
pc = pmc_pcpu[cpu];
|
||||
first_ri = md->pmd_classdep[PMC_MDEP_CLASS_INDEX_ARMV7].pcd_ri;
|
||||
KASSERT(pc != NULL, ("[armv7,%d] NULL per-cpu pointer", __LINE__));
|
||||
|
||||
for (i = 0, phw = pac->pc_armv7pmcs; i < armv7_npmcs; i++, phw++) {
|
||||
phw->phw_state = PMC_PHW_FLAG_IS_ENABLED |
|
||||
PMC_PHW_CPU_TO_STATE(cpu) | PMC_PHW_INDEX_TO_STATE(i);
|
||||
phw->phw_pmc = NULL;
|
||||
pc->pc_hwpmcs[i + first_ri] = phw;
|
||||
}
|
||||
|
||||
/* Enable unit */
|
||||
pmnc = armv7_pmnc_read();
|
||||
pmnc |= ARMV7_PMNC_ENABLE;
|
||||
armv7_pmnc_write(pmnc);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
armv7_pcpu_fini(struct pmc_mdep *md, int cpu)
|
||||
{
|
||||
uint32_t pmnc;
|
||||
|
||||
pmnc = armv7_pmnc_read();
|
||||
pmnc &= ~ARMV7_PMNC_ENABLE;
|
||||
armv7_pmnc_write(pmnc);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
struct pmc_mdep *
|
||||
pmc_armv7_initialize()
|
||||
{
|
||||
struct pmc_mdep *pmc_mdep;
|
||||
struct pmc_classdep *pcd;
|
||||
int reg;
|
||||
|
||||
reg = armv7_pmnc_read();
|
||||
|
||||
armv7_npmcs = (reg >> ARMV7_PMNC_N_SHIFT) & \
|
||||
ARMV7_PMNC_N_MASK;
|
||||
|
||||
PMCDBG(MDP,INI,1,"armv7-init npmcs=%d", armv7_npmcs);
|
||||
|
||||
/*
|
||||
* Allocate space for pointers to PMC HW descriptors and for
|
||||
* the MDEP structure used by MI code.
|
||||
*/
|
||||
armv7_pcpu = malloc(sizeof(struct armv7_cpu *) * pmc_cpu_max(),
|
||||
M_PMC, M_WAITOK | M_ZERO);
|
||||
|
||||
/* Just one class */
|
||||
pmc_mdep = pmc_mdep_alloc(1);
|
||||
pmc_mdep->pmd_cputype = PMC_CPU_ARMV7;
|
||||
|
||||
pcd = &pmc_mdep->pmd_classdep[PMC_MDEP_CLASS_INDEX_ARMV7];
|
||||
pcd->pcd_caps = ARMV7_PMC_CAPS;
|
||||
pcd->pcd_class = PMC_CLASS_ARMV7;
|
||||
pcd->pcd_num = armv7_npmcs;
|
||||
pcd->pcd_ri = pmc_mdep->pmd_npmc;
|
||||
pcd->pcd_width = 32;
|
||||
|
||||
pcd->pcd_allocate_pmc = armv7_allocate_pmc;
|
||||
pcd->pcd_config_pmc = armv7_config_pmc;
|
||||
pcd->pcd_pcpu_fini = armv7_pcpu_fini;
|
||||
pcd->pcd_pcpu_init = armv7_pcpu_init;
|
||||
pcd->pcd_describe = armv7_describe;
|
||||
pcd->pcd_get_config = armv7_get_config;
|
||||
pcd->pcd_read_pmc = armv7_read_pmc;
|
||||
pcd->pcd_release_pmc = armv7_release_pmc;
|
||||
pcd->pcd_start_pmc = armv7_start_pmc;
|
||||
pcd->pcd_stop_pmc = armv7_stop_pmc;
|
||||
pcd->pcd_write_pmc = armv7_write_pmc;
|
||||
|
||||
pmc_mdep->pmd_intr = armv7_intr;
|
||||
pmc_mdep->pmd_switch_in = armv7_switch_in;
|
||||
pmc_mdep->pmd_switch_out = armv7_switch_out;
|
||||
|
||||
pmc_mdep->pmd_npmc += armv7_npmcs;
|
||||
|
||||
return (pmc_mdep);
|
||||
}
|
||||
|
||||
void
|
||||
pmc_armv7_finalize(struct pmc_mdep *md)
|
||||
{
|
||||
|
||||
}
|
61
sys/dev/hwpmc/hwpmc_armv7.h
Normal file
61
sys/dev/hwpmc/hwpmc_armv7.h
Normal file
|
@ -0,0 +1,61 @@
|
|||
/*-
|
||||
* Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
|
||||
* All rights reserved.
|
||||
*
|
||||
* This software was developed by SRI International and the University of
|
||||
* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
|
||||
* ("CTSRD"), as part of the DARPA CRASH research programme.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
#ifndef _DEV_HWPMC_ARMV7_H_
|
||||
#define _DEV_HWPMC_ARMV7_H_
|
||||
|
||||
#define ARMV7_PMC_CAPS (PMC_CAP_INTERRUPT | PMC_CAP_USER | \
|
||||
PMC_CAP_SYSTEM | PMC_CAP_EDGE | \
|
||||
PMC_CAP_THRESHOLD | PMC_CAP_READ | \
|
||||
PMC_CAP_WRITE | PMC_CAP_INVERT | \
|
||||
PMC_CAP_QUALIFIER)
|
||||
|
||||
#define ARMV7_PMNC_ENABLE (1 << 0) /* Enable all counters */
|
||||
#define ARMV7_PMNC_P (1 << 1) /* Reset all counters */
|
||||
#define ARMV7_PMNC_C (1 << 2) /* Cycle counter reset */
|
||||
#define ARMV7_PMNC_D (1 << 3) /* CCNT counts every 64th cpu cycle */
|
||||
#define ARMV7_PMNC_X (1 << 4) /* Export to ext. monitoring (ETM) */
|
||||
#define ARMV7_PMNC_DP (1 << 5) /* Disable CCNT if non-invasive debug*/
|
||||
#define ARMV7_PMNC_N_SHIFT 11 /* Number of counters implemented */
|
||||
#define ARMV7_PMNC_N_MASK 0x1f
|
||||
#define ARMV7_PMNC_MASK 0x3f /* Writable bits */
|
||||
|
||||
#define ARMV7_RELOAD_COUNT_TO_PERFCTR_VALUE(R) (-(R))
|
||||
#define ARMV7_PERFCTR_VALUE_TO_RELOAD_COUNT(P) (-(P))
|
||||
|
||||
#ifdef _KERNEL
|
||||
/* MD extension for 'struct pmc' */
|
||||
struct pmc_md_armv7_pmc {
|
||||
uint32_t pm_armv7_evsel;
|
||||
};
|
||||
#endif /* _KERNEL */
|
||||
#endif /* _DEV_HWPMC_ARMV7_H_ */
|
|
@ -4756,6 +4756,46 @@ __PMC_EV_ALIAS("IMPC_C0H_TRK_REQUEST.ALL", UCP_EVENT_84H_01H)
|
|||
#define PMC_EV_XSCALE_FIRST PMC_EV_XSCALE_IC_FETCH
|
||||
#define PMC_EV_XSCALE_LAST PMC_EV_XSCALE_DATA_BUS_TRANS
|
||||
|
||||
/*
|
||||
* ARMv7 Events
|
||||
*/
|
||||
|
||||
#define __PMC_EV_ARMV7() \
|
||||
__PMC_EV(ARMV7, PMNC_SW_INCR) \
|
||||
__PMC_EV(ARMV7, L1_ICACHE_REFILL) \
|
||||
__PMC_EV(ARMV7, ITLB_REFILL) \
|
||||
__PMC_EV(ARMV7, L1_DCACHE_REFILL) \
|
||||
__PMC_EV(ARMV7, L1_DCACHE_ACCESS) \
|
||||
__PMC_EV(ARMV7, DTLB_REFILL) \
|
||||
__PMC_EV(ARMV7, MEM_READ) \
|
||||
__PMC_EV(ARMV7, MEM_WRITE) \
|
||||
__PMC_EV(ARMV7, INSTR_EXECUTED) \
|
||||
__PMC_EV(ARMV7, EXC_TAKEN) \
|
||||
__PMC_EV(ARMV7, EXC_EXECUTED) \
|
||||
__PMC_EV(ARMV7, CID_WRITE) \
|
||||
__PMC_EV(ARMV7, PC_WRITE) \
|
||||
__PMC_EV(ARMV7, PC_IMM_BRANCH) \
|
||||
__PMC_EV(ARMV7, PC_PROC_RETURN) \
|
||||
__PMC_EV(ARMV7, MEM_UNALIGNED_ACCESS) \
|
||||
__PMC_EV(ARMV7, PC_BRANCH_MIS_PRED) \
|
||||
__PMC_EV(ARMV7, CLOCK_CYCLES) \
|
||||
__PMC_EV(ARMV7, PC_BRANCH_PRED) \
|
||||
__PMC_EV(ARMV7, MEM_ACCESS) \
|
||||
__PMC_EV(ARMV7, L1_ICACHE_ACCESS) \
|
||||
__PMC_EV(ARMV7, L1_DCACHE_WB) \
|
||||
__PMC_EV(ARMV7, L2_CACHE_ACCESS) \
|
||||
__PMC_EV(ARMV7, L2_CACHE_REFILL) \
|
||||
__PMC_EV(ARMV7, L2_CACHE_WB) \
|
||||
__PMC_EV(ARMV7, BUS_ACCESS) \
|
||||
__PMC_EV(ARMV7, MEM_ERROR) \
|
||||
__PMC_EV(ARMV7, INSTR_SPEC) \
|
||||
__PMC_EV(ARMV7, TTBR_WRITE) \
|
||||
__PMC_EV(ARMV7, BUS_CYCLES) \
|
||||
__PMC_EV(ARMV7, CPU_CYCLES)
|
||||
|
||||
#define PMC_EV_ARMV7_FIRST PMC_EV_ARMV7_PMNC_SW_INCR
|
||||
#define PMC_EV_ARMV7_LAST PMC_EV_ARMV7_CPU_CYCLES
|
||||
|
||||
/*
|
||||
* MIPS Events from "Programming the MIPS32 24K Core Family",
|
||||
* Document Number: MD00355 Revision 04.63 December 19, 2008
|
||||
|
@ -5219,7 +5259,8 @@ __PMC_EV_ALIAS("IMPC_C0H_TRK_REQUEST.ALL", UCP_EVENT_84H_01H)
|
|||
* 0x11080 0x0080 INTEL Pentium MMX events
|
||||
* 0x11100 0x0100 INTEL Pentium Pro/P-II/P-III/Pentium-M events
|
||||
* 0x11200 0x00FF INTEL XScale events
|
||||
* 0x11300 0x00FF MIPS 24K events
|
||||
* 0x11300 0x00FF MIPS 24K events
|
||||
* 0x14000 0x0100 ARMv7 events
|
||||
* 0x20000 0x1000 Software events
|
||||
*/
|
||||
#define __PMC_EVENTS() \
|
||||
|
@ -5253,6 +5294,8 @@ __PMC_EV_ALIAS("IMPC_C0H_TRK_REQUEST.ALL", UCP_EVENT_84H_01H)
|
|||
__PMC_EV_PPC7450() \
|
||||
__PMC_EV_BLOCK(PPC970, 0x13100) \
|
||||
__PMC_EV_PPC970() \
|
||||
__PMC_EV_BLOCK(ARMV7, 0x14000) \
|
||||
__PMC_EV_ARMV7() \
|
||||
|
||||
#define PMC_EVENT_FIRST PMC_EV_TSC_TSC
|
||||
#define PMC_EVENT_LAST PMC_EV_SOFT_LAST
|
||||
|
|
|
@ -73,6 +73,7 @@
|
|||
#define __PMC_CPUS() \
|
||||
__PMC_CPU(AMD_K7, 0x00, "AMD K7") \
|
||||
__PMC_CPU(AMD_K8, 0x01, "AMD K8") \
|
||||
__PMC_CPU(ARMV7, 0x500, "ARMv7") \
|
||||
__PMC_CPU(INTEL_P5, 0x80, "Intel Pentium") \
|
||||
__PMC_CPU(INTEL_P6, 0x81, "Intel Pentium Pro") \
|
||||
__PMC_CPU(INTEL_CL, 0x82, "Intel Celeron") \
|
||||
|
@ -127,6 +128,7 @@ enum pmc_cputype {
|
|||
__PMC_CLASS(UCF) /* Intel Uncore fixed function */ \
|
||||
__PMC_CLASS(UCP) /* Intel Uncore programmable */ \
|
||||
__PMC_CLASS(XSCALE) /* Intel XScale counters */ \
|
||||
__PMC_CLASS(ARMV7) /* ARMv7 */ \
|
||||
__PMC_CLASS(MIPS24K) /* MIPS 24K */ \
|
||||
__PMC_CLASS(OCTEON) /* Cavium Octeon */ \
|
||||
__PMC_CLASS(PPC7450) /* Motorola MPC7450 class */ \
|
||||
|
|
Loading…
Reference in a new issue