From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Fri, 23 Sep 2005 04:43:55 +0000 (-0700)
Subject: [PATCH] ppc32: fix build with oprofile
X-Git-Tag: v2.6.14-rc3~51^2~58
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=244bc050d5c9431682b7d834aff92e663fe88bb2;p=linux-2.6

[PATCH] ppc32: fix build with oprofile

Current -git tree doesn't build when enabling oprofile on a non-bookE CPU
(like on a PowerMac for example).  While there is no performance counter
support for these CPUs implemented yet, it's still nice to be able to use
the timer based sampling, and that got broken.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/ppc/kernel/Makefile b/arch/ppc/kernel/Makefile
index 1fb92f16ac..b1457a8a9c 100644
--- a/arch/ppc/kernel/Makefile
+++ b/arch/ppc/kernel/Makefile
@@ -15,9 +15,8 @@ extra-y				+= vmlinux.lds
 obj-y				:= entry.o traps.o irq.o idle.o time.o misc.o \
 					process.o signal.o ptrace.o align.o \
 					semaphore.o syscalls.o setup.o \
-					cputable.o ppc_htab.o
+					cputable.o ppc_htab.o perfmon.o
 obj-$(CONFIG_6xx)		+= l2cr.o cpu_setup_6xx.o
-obj-$(CONFIG_E500)		+= perfmon.o
 obj-$(CONFIG_SOFTWARE_SUSPEND)	+= swsusp.o
 obj-$(CONFIG_POWER4)		+= cpu_setup_power4.o
 obj-$(CONFIG_MODULES)		+= module.o ppc_ksyms.o
diff --git a/arch/ppc/kernel/perfmon.c b/arch/ppc/kernel/perfmon.c
index fa1dad96b8..04c18788e8 100644
--- a/arch/ppc/kernel/perfmon.c
+++ b/arch/ppc/kernel/perfmon.c
@@ -45,7 +45,7 @@ static void dummy_perf(struct pt_regs *regs)
 	mtpmr(PMRN_PMGC0, pmgc0);
 }
 
-#else
+#elif CONFIG_6xx
 /* Ensure exceptions are disabled */
 
 static void dummy_perf(struct pt_regs *regs)
@@ -55,6 +55,10 @@ static void dummy_perf(struct pt_regs *regs)
 	mmcr0 &= ~MMCR0_PMXE;
 	mtspr(SPRN_MMCR0, mmcr0);
 }
+#else
+static void dummy_perf(struct pt_regs *regs)
+{
+}
 #endif
 
 void (*perf_irq)(struct pt_regs *) = dummy_perf;