[PATCH 1/2] x86/intel_rdt,intel_cqm: Remove build dependency of RDT code on CQM code.

[David Carrillo-Cisneros]

Minor code move to remove build dependency of RDT code on
perf_event_intel_cqm.c .

Signed-off-by: David Carrillo-Cisneros <davidcc@xxxxxxxxxx>
---
 arch/x86/include/asm/pqr_common.h          |  3 +++
 arch/x86/kernel/cpu/Makefile               |  6 +++++-
 arch/x86/kernel/cpu/perf_event_intel_cqm.c |  8 --------
 arch/x86/kernel/cpu/pqr_common.c           | 10 ++++++++++
 4 files changed, 18 insertions(+), 9 deletions(-)
 create mode 100644 arch/x86/kernel/cpu/pqr_common.c

diff --git a/arch/x86/include/asm/pqr_common.h b/arch/x86/include/asm/pqr_common.h
index 11e985c..228e943 100644
--- a/arch/x86/include/asm/pqr_common.h
+++ b/arch/x86/include/asm/pqr_common.h
@@ -1,6 +1,9 @@
 #ifndef _X86_RDT_H_
 #define _X86_RDT_H_
 
+#include <linux/types.h>
+#include <asm/percpu.h>
+
 #define MSR_IA32_PQR_ASSOC	0x0c8f
 
 /**
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index b3292a4..5eb0f6e 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -39,7 +39,8 @@ obj-$(CONFIG_CPU_SUP_AMD)		+= perf_event_amd_iommu.o
 endif
 obj-$(CONFIG_CPU_SUP_INTEL)		+= perf_event_p6.o perf_event_knc.o perf_event_p4.o
 obj-$(CONFIG_CPU_SUP_INTEL)		+= perf_event_intel_lbr.o perf_event_intel_ds.o perf_event_intel.o
-obj-$(CONFIG_CPU_SUP_INTEL)		+= perf_event_intel_rapl.o perf_event_intel_cqm.o
+obj-$(CONFIG_CPU_SUP_INTEL)		+= perf_event_intel_rapl.o
+obj-$(CONFIG_CPU_SUP_INTEL)		+= pqr_common.o perf_event_intel_cqm.o
 obj-$(CONFIG_CPU_SUP_INTEL)		+= perf_event_intel_pt.o perf_event_intel_bts.o
 obj-$(CONFIG_CPU_SUP_INTEL)		+= perf_event_intel_cstate.o
 
@@ -49,6 +50,9 @@ obj-$(CONFIG_PERF_EVENTS_INTEL_UNCORE)	+= perf_event_intel_uncore.o \
 					   perf_event_intel_uncore_nhmex.o
 obj-$(CONFIG_CPU_SUP_INTEL)		+= perf_event_msr.o
 obj-$(CONFIG_CPU_SUP_AMD)		+= perf_event_msr.o
+
+else
+obj-$(CONFIG_INTEL_RDT)			+= pqr_common.o
 endif
 
 obj-$(CONFIG_INTEL_RDT)			+= intel_rdt.o
diff --git a/arch/x86/kernel/cpu/perf_event_intel_cqm.c b/arch/x86/kernel/cpu/perf_event_intel_cqm.c
index 04a696f..eee960d 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_cqm.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_cqm.c
@@ -17,14 +17,6 @@ static u32 cqm_max_rmid = -1;
 static unsigned int cqm_l3_scale; /* supposedly cacheline size */
 
 /*
- * The cached intel_pqr_state is strictly per CPU and can never be
- * updated from a remote CPU. Both functions which modify the state
- * (intel_cqm_event_start and intel_cqm_event_stop) are called with
- * interrupts disabled, which is sufficient for the protection.
- */
-DEFINE_PER_CPU(struct intel_pqr_state, pqr_state);
-
-/*
  * Protects cache_cgroups and cqm_rmid_free_lru and cqm_rmid_limbo_lru.
  * Also protects event->hw.cqm_rmid
  *
diff --git a/arch/x86/kernel/cpu/pqr_common.c b/arch/x86/kernel/cpu/pqr_common.c
new file mode 100644
index 0000000..abcb432
--- /dev/null
+++ b/arch/x86/kernel/cpu/pqr_common.c
@@ -0,0 +1,10 @@
+#include <asm/pqr_common.h>
+
+/*
+ * The cached intel_pqr_state is strictly per CPU and can never be
+ * updated from a remote CPU. Both functions which modify the state
+ * (intel_cqm_event_start and intel_cqm_event_stop) are called with
+ * interrupts disabled, which is sufficient for the protection.
+ */
+DEFINE_PER_CPU(struct intel_pqr_state, pqr_state);
+
-- 
2.6.0.rc2.230.g3dd15c0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/