1 files changed, 0 insertions, 124 deletions
diff --git a/ANDROID_3.4.5/arch/s390/kernel/perf_event.c b/ANDROID_3.4.5/arch/s390/kernel/perf_event.c
deleted file mode 100644
index f58f37f6..00000000
--- a/ANDROID_3.4.5/arch/s390/kernel/perf_event.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * Performance event support for s390x
- *
- *  Copyright IBM Corp. 2012
- *  Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- */
-#define KMSG_COMPONENT	"perf"
-#define pr_fmt(fmt)	KMSG_COMPONENT ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/perf_event.h>
-#include <linux/percpu.h>
-#include <linux/export.h>
-#include <asm/irq.h>
-#include <asm/cpu_mf.h>
-#include <asm/lowcore.h>
-#include <asm/processor.h>
-
-const char *perf_pmu_name(void)
-{
-	if (cpum_cf_avail() || cpum_sf_avail())
-		return "CPU-measurement facilities (CPUMF)";
-	return "pmu";
-}
-EXPORT_SYMBOL(perf_pmu_name);
-
-int perf_num_counters(void)
-{
-	int num = 0;
-
-	if (cpum_cf_avail())
-		num += PERF_CPUM_CF_MAX_CTR;
-
-	return num;
-}
-EXPORT_SYMBOL(perf_num_counters);
-
-void perf_event_print_debug(void)
-{
-	struct cpumf_ctr_info cf_info;
-	unsigned long flags;
-	int cpu;
-
-	if (!cpum_cf_avail())
-		return;
-
-	local_irq_save(flags);
-
-	cpu = smp_processor_id();
-	memset(&cf_info, 0, sizeof(cf_info));
-	if (!qctri(&cf_info)) {
-		pr_info("CPU[%i] CPUM_CF: ver=%u.%u A=%04x E=%04x C=%04x\n",
-			cpu, cf_info.cfvn, cf_info.csvn,
-			cf_info.auth_ctl, cf_info.enable_ctl, cf_info.act_ctl);
-		print_hex_dump_bytes("CPUMF Query: ", DUMP_PREFIX_OFFSET,
-				     &cf_info, sizeof(cf_info));
-	}
-
-	local_irq_restore(flags);
-}
-
-/* See also arch/s390/kernel/traps.c */
-static unsigned long __store_trace(struct perf_callchain_entry *entry,
-				   unsigned long sp,
-				   unsigned long low, unsigned long high)
-{
-	struct stack_frame *sf;
-	struct pt_regs *regs;
-
-	while (1) {
-		sp = sp & PSW_ADDR_INSN;
-		if (sp < low || sp > high - sizeof(*sf))
-			return sp;
-		sf = (struct stack_frame *) sp;
-		perf_callchain_store(entry, sf->gprs[8] & PSW_ADDR_INSN);
-		/* Follow the backchain. */
-		while (1) {
-			low = sp;
-			sp = sf->back_chain & PSW_ADDR_INSN;
-			if (!sp)
-				break;
-			if (sp <= low || sp > high - sizeof(*sf))
-				return sp;
-			sf = (struct stack_frame *) sp;
-			perf_callchain_store(entry,
-					     sf->gprs[8] & PSW_ADDR_INSN);
-		}
-		/* Zero backchain detected, check for interrupt frame. */
-		sp = (unsigned long) (sf + 1);
-		if (sp <= low || sp > high - sizeof(*regs))
-			return sp;
-		regs = (struct pt_regs *) sp;
-		perf_callchain_store(entry, sf->gprs[8] & PSW_ADDR_INSN);
-		low = sp;
-		sp = regs->gprs[15];
-	}
-}
-
-void perf_callchain_kernel(struct perf_callchain_entry *entry,
-			   struct pt_regs *regs)
-{
-	unsigned long head;
-	struct stack_frame *head_sf;
-
-	if (user_mode(regs))
-		return;
-
-	head = regs->gprs[15];
-	head_sf = (struct stack_frame *) head;
-
-	if (!head_sf || !head_sf->back_chain)
-		return;
-
-	head = head_sf->back_chain;
-	head = __store_trace(entry, head, S390_lowcore.async_stack - ASYNC_SIZE,
-			     S390_lowcore.async_stack);
-
-	__store_trace(entry, head, S390_lowcore.thread_info,
-		      S390_lowcore.thread_info + THREAD_SIZE);
-}