perf/powerpc: Use perf_arch_instruction_pointer()

JIRA: https://issues.redhat.com/browse/RHEL-77935

upstream
========
commit 3e807cf
Author: Colton Lewis <coltonlewis@google.com>
Date: Wed Nov 13 19:01:53 2024 +0000

description
===========
Make sure PowerPC uses the arch-specific function now that those have
been reorganized.

    Signed-off-by: Colton Lewis <coltonlewis@google.com>
    Signed-off-by: Ingo Molnar <mingo@kernel.org>
    Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
    Acked-by: Madhavan Srinivasan <maddy@linux.ibm.com>
    Link: https://lore.kernel.org/r/20241113190156.2145593-4-coltonlewis@google.com

Signed-off-by: Michael Petlan <mpetlan@redhat.com>

Author: rfmvh

arch/powerpc/perf/callchain.c

@@ -51,7 +51,7 @@ perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *re
 
 	lr = regs->link;
 	sp = regs->gpr[1];
-	perf_callchain_store(entry, perf_instruction_pointer(regs));
+	perf_callchain_store(entry, perf_arch_instruction_pointer(regs));
 
 	if (!validate_sp(sp, current))
 		return;

arch/powerpc/perf/callchain_32.c

@@ -139,7 +139,7 @@ void perf_callchain_user_32(struct perf_callchain_entry_ctx *entry,
 	long level = 0;
 	unsigned int __user *fp, *uregs;
 
-	next_ip = perf_instruction_pointer(regs);
+	next_ip = perf_arch_instruction_pointer(regs);
 	lr = regs->link;
 	sp = regs->gpr[1];
 	perf_callchain_store(entry, next_ip);

arch/powerpc/perf/callchain_64.c

@@ -74,7 +74,7 @@ void perf_callchain_user_64(struct perf_callchain_entry_ctx *entry,
 	struct signal_frame_64 __user *sigframe;
 	unsigned long __user *fp, *uregs;
 
-	next_ip = perf_instruction_pointer(regs);
+	next_ip = perf_arch_instruction_pointer(regs);
 	lr = regs->link;
 	sp = regs->gpr[1];
 	perf_callchain_store(entry, next_ip);