powerpc/perf: Move perf core & PMU code into a subdirectory

The perf code has grown a lot since it started, and is big enough to
warrant its own subdirectory. For reference it's ~60% bigger than the
oprofile code. It declutters the kernel directory, makes it simpler to
grep for "just perf stuff", and allows us to shorten some filenames.

While we're at it, make it more obvious that we have two implementations
of the core perf logic. One for (roughly) Book3S CPUs, which was the
original implementation, and the other for Freescale embedded CPUs.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

14 files changed, 18 insertions, 12 deletions

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index b8b105c..6524c6e 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -157,6 +157,7 @@ core-y				+= arch/powerpc/kernel/ \
 				   arch/powerpc/net/
 core-$(CONFIG_XMON)		+= arch/powerpc/xmon/
 core-$(CONFIG_KVM) 		+= arch/powerpc/kvm/
+core-$(CONFIG_PERF_EVENTS)	+= arch/powerpc/perf/
 
 drivers-$(CONFIG_OPROFILE)	+= arch/powerpc/oprofile/
 
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 391bf7e..f5808a3 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -114,15 +114,6 @@ obj-$(CONFIG_PPC_IO_WORKAROUNDS)	+= io-workarounds.o
 obj-$(CONFIG_DYNAMIC_FTRACE)	+= ftrace.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER)	+= ftrace.o
 obj-$(CONFIG_FTRACE_SYSCALLS)	+= ftrace.o
-obj-$(CONFIG_PERF_EVENTS)	+= perf_callchain.o
-
-obj-$(CONFIG_PPC_PERF_CTRS)	+= perf_event.o
-obj64-$(CONFIG_PPC_PERF_CTRS)	+= power4-pmu.o ppc970-pmu.o power5-pmu.o \
-				   power5+-pmu.o power6-pmu.o power7-pmu.o
-obj32-$(CONFIG_PPC_PERF_CTRS)	+= mpc7450-pmu.o
-
-obj-$(CONFIG_FSL_EMB_PERF_EVENT) += perf_event_fsl_emb.o
-obj-$(CONFIG_FSL_EMB_PERF_EVENT_E500) += e500-pmu.o
 
 obj-$(CONFIG_8XX_MINIMAL_FPEMU) += softemu8xx.o
 
diff --git a/arch/powerpc/perf/Makefile b/arch/powerpc/perf/Makefile
new file mode 100644
index 0000000..af3fac2
--- /dev/null
+++ b/arch/powerpc/perf/Makefile
@@ -0,0 +1,14 @@
+subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
+
+obj-$(CONFIG_PERF_EVENTS)	+= callchain.o
+
+obj-$(CONFIG_PPC_PERF_CTRS)	+= core-book3s.o
+obj64-$(CONFIG_PPC_PERF_CTRS)	+= power4-pmu.o ppc970-pmu.o power5-pmu.o \
+				   power5+-pmu.o power6-pmu.o power7-pmu.o
+obj32-$(CONFIG_PPC_PERF_CTRS)	+= mpc7450-pmu.o
+
+obj-$(CONFIG_FSL_EMB_PERF_EVENT) += core-fsl-emb.o
+obj-$(CONFIG_FSL_EMB_PERF_EVENT_E500) += e500-pmu.o
+
+obj-$(CONFIG_PPC64)		+= $(obj64-y)
+obj-$(CONFIG_PPC32)		+= $(obj32-y)
diff --git a/arch/powerpc/kernel/perf_callchain.c b/arch/powerpc/perf/callchain.c
index 564c1d8..e8a18d1 100644
--- a/arch/powerpc/kernel/perf_callchain.c
+++ b/arch/powerpc/perf/callchain.c
@@ -20,7 +20,7 @@
 #include <asm/ucontext.h>
 #include <asm/vdso.h>
 #ifdef CONFIG_PPC64
-#include "ppc32.h"
+#include "../kernel/ppc32.h"
 #endif
 
 
diff --git a/arch/powerpc/kernel/perf_event.c b/arch/powerpc/perf/core-book3s.c
index 64483fd..64483fd 100644
--- a/arch/powerpc/kernel/perf_event.c
+++ b/arch/powerpc/perf/core-book3s.c
diff --git a/arch/powerpc/kernel/perf_event_fsl_emb.c b/arch/powerpc/perf/core-fsl-emb.c
index 0a6d2a9..0a6d2a9 100644
--- a/arch/powerpc/kernel/perf_event_fsl_emb.c
+++ b/arch/powerpc/perf/core-fsl-emb.c
diff --git a/arch/powerpc/kernel/e500-pmu.c b/arch/powerpc/perf/e500-pmu.c
index cb2e294..cb2e294 100644
--- a/arch/powerpc/kernel/e500-pmu.c
+++ b/arch/powerpc/perf/e500-pmu.c
diff --git a/arch/powerpc/kernel/mpc7450-pmu.c b/arch/powerpc/perf/mpc7450-pmu.c
index fe21b51..fe21b51 100644
--- a/arch/powerpc/kernel/mpc7450-pmu.c
+++ b/arch/powerpc/perf/mpc7450-pmu.c
diff --git a/arch/powerpc/kernel/power4-pmu.c b/arch/powerpc/perf/power4-pmu.c
index b4f1dda..b4f1dda 100644
--- a/arch/powerpc/kernel/power4-pmu.c
+++ b/arch/powerpc/perf/power4-pmu.c
diff --git a/arch/powerpc/kernel/power5+-pmu.c b/arch/powerpc/perf/power5+-pmu.c
index a8757ba..a8757ba 100644
--- a/arch/powerpc/kernel/power5+-pmu.c
+++ b/arch/powerpc/perf/power5+-pmu.c
diff --git a/arch/powerpc/kernel/power5-pmu.c b/arch/powerpc/perf/power5-pmu.c
index e7f06eb..e7f06eb 100644
--- a/arch/powerpc/kernel/power5-pmu.c
+++ b/arch/powerpc/perf/power5-pmu.c
diff --git a/arch/powerpc/kernel/power6-pmu.c b/arch/powerpc/perf/power6-pmu.c
index 0bbc901..31128e0 100644
--- a/arch/powerpc/kernel/power6-pmu.c
+++ b/arch/powerpc/perf/power6-pmu.c
@@ -131,7 +131,7 @@ static u32 marked_bus_events[16] = {
 	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.
diff --git a/arch/powerpc/kernel/power7-pmu.c b/arch/powerpc/perf/power7-pmu.c
index 1251e4d..1251e4d 100644
--- a/arch/powerpc/kernel/power7-pmu.c
+++ b/arch/powerpc/perf/power7-pmu.c
diff --git a/arch/powerpc/kernel/ppc970-pmu.c b/arch/powerpc/perf/ppc970-pmu.c
index 8c21902..111eb25 100644
--- a/arch/powerpc/kernel/ppc970-pmu.c
+++ b/arch/powerpc/perf/ppc970-pmu.c
@@ -252,7 +252,7 @@ static int p970_get_alternatives(u64 event, unsigned int flags, u64 alt[])
 		alt[1] = event ^ 0x1000;
 		return 2;
 	}
-		
+
 	return 1;
 }