[PATCH v2 4/6] drm/i915/gvt: Make the MMIO attribute wrappers be inline

[changbin.du at intel.com]

From: Changbin Du <changbin.du at intel.com>

Function calls are expensive. I have see obvious overhead call to
these wrappers in perf data, especially from the cmd parser side.
So make these simple wrappers be inline to kill them all.

Signed-off-by: Changbin Du <changbin.du at intel.com>
---
 drivers/gpu/drm/i915/gvt/gvt.h      | 78 ++++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/i915/gvt/handlers.c | 80 -------------------------------------
 drivers/gpu/drm/i915/gvt/mmio.h     |  8 +---
 3 files changed, 79 insertions(+), 87 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 86ca42b..9653d73 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -199,6 +199,21 @@ struct intel_gvt_fence {
 
 struct intel_gvt_mmio {
 	u8 *mmio_attribute;
+/* Register contains RO bits */
+#define F_RO		(1 << 0)
+/* Register contains graphics address */
+#define F_GMADR		(1 << 1)
+/* Mode mask registers with high 16 bits as the mask bits */
+#define F_MODE_MASK	(1 << 2)
+/* This reg can be accessed by GPU commands */
+#define F_CMD_ACCESS	(1 << 3)
+/* This reg has been accessed by a VM */
+#define F_ACCESSED	(1 << 4)
+/* This reg has been accessed through GPU commands */
+#define F_CMD_ACCESSED	(1 << 5)
+/* This reg could be accessed by unaligned address */
+#define F_UNALIGN	(1 << 6)
+
 	DECLARE_HASHTABLE(mmio_info_table, INTEL_GVT_MMIO_HASH_BITS);
 };
 
@@ -477,6 +492,69 @@ enum {
 	GVT_FAILSAFE_INSUFFICIENT_RESOURCE,
 };
 
+/**
+ * intel_gvt_mmio_set_accessed - mark a MMIO has been accessed
+ * @gvt: a GVT device
+ * @offset: register offset
+ *
+ */
+static inline void intel_gvt_mmio_set_accessed(
+			struct intel_gvt *gvt, unsigned int offset)
+{
+	gvt->mmio.mmio_attribute[offset >> 2] |= F_ACCESSED;
+}
+
+/**
+ * intel_gvt_mmio_is_cmd_accessed - mark a MMIO could be accessed by command
+ * @gvt: a GVT device
+ * @offset: register offset
+ *
+ */
+static inline bool intel_gvt_mmio_is_cmd_access(
+			struct intel_gvt *gvt, unsigned int offset)
+{
+	return gvt->mmio.mmio_attribute[offset >> 2] & F_CMD_ACCESS;
+}
+
+/**
+ * intel_gvt_mmio_is_unalign - mark a MMIO could be accessed unaligned
+ * @gvt: a GVT device
+ * @offset: register offset
+ *
+ */
+static inline bool intel_gvt_mmio_is_unalign(
+			struct intel_gvt *gvt, unsigned int offset)
+{
+	return gvt->mmio.mmio_attribute[offset >> 2] & F_UNALIGN;
+}
+
+/**
+ * intel_gvt_mmio_set_cmd_accessed - mark a MMIO has been accessed by command
+ * @gvt: a GVT device
+ * @offset: register offset
+ *
+ */
+static inline void intel_gvt_mmio_set_cmd_accessed(
+			struct intel_gvt *gvt, unsigned int offset)
+{
+	gvt->mmio.mmio_attribute[offset >> 2] |= F_CMD_ACCESSED;
+}
+
+/**
+ * intel_gvt_mmio_has_mode_mask - if a MMIO has a mode mask
+ * @gvt: a GVT device
+ * @offset: register offset
+ *
+ * Returns:
+ * True if a MMIO has a mode mask in its higher 16 bits, false if it isn't.
+ *
+ */
+static inline bool intel_gvt_mmio_has_mode_mask(
+			struct intel_gvt *gvt, unsigned int offset)
+{
+	return gvt->mmio.mmio_attribute[offset >> 2] & F_MODE_MASK;
+}
+
 #include "trace.h"
 #include "mpt.h"
 
diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c
index 81478f9..1fe1c30 100644
--- a/drivers/gpu/drm/i915/gvt/handlers.c
+++ b/drivers/gpu/drm/i915/gvt/handlers.c
@@ -47,21 +47,6 @@
 #define PCH_PP_OFF_DELAYS _MMIO(0xc720c)
 #define PCH_PP_DIVISOR _MMIO(0xc7210)
 
-/* Register contains RO bits */
-#define F_RO		(1 << 0)
-/* Register contains graphics address */
-#define F_GMADR		(1 << 1)
-/* Mode mask registers with high 16 bits as the mask bits */
-#define F_MODE_MASK	(1 << 2)
-/* This reg can be accessed by GPU commands */
-#define F_CMD_ACCESS	(1 << 3)
-/* This reg has been accessed by a VM */
-#define F_ACCESSED	(1 << 4)
-/* This reg has been accessed through GPU commands */
-#define F_CMD_ACCESSED	(1 << 5)
-/* This reg could be accessed by unaligned address */
-#define F_UNALIGN	(1 << 6)
-
 unsigned long intel_gvt_get_device_type(struct intel_gvt *gvt)
 {
 	if (IS_BROADWELL(gvt->dev_priv))
@@ -2955,71 +2940,6 @@ int intel_gvt_setup_mmio_info(struct intel_gvt *gvt)
 	return ret;
 }
 
-/**
- * intel_gvt_mmio_set_accessed - mark a MMIO has been accessed
- * @gvt: a GVT device
- * @offset: register offset
- *
- */
-void intel_gvt_mmio_set_accessed(struct intel_gvt *gvt, unsigned int offset)
-{
-	gvt->mmio.mmio_attribute[offset >> 2] |=
-		F_ACCESSED;
-}
-
-/**
- * intel_gvt_mmio_is_cmd_accessed - mark a MMIO could be accessed by command
- * @gvt: a GVT device
- * @offset: register offset
- *
- */
-bool intel_gvt_mmio_is_cmd_access(struct intel_gvt *gvt,
-		unsigned int offset)
-{
-	return gvt->mmio.mmio_attribute[offset >> 2] &
-		F_CMD_ACCESS;
-}
-
-/**
- * intel_gvt_mmio_is_unalign - mark a MMIO could be accessed unaligned
- * @gvt: a GVT device
- * @offset: register offset
- *
- */
-bool intel_gvt_mmio_is_unalign(struct intel_gvt *gvt,
-		unsigned int offset)
-{
-	return gvt->mmio.mmio_attribute[offset >> 2] &
-		F_UNALIGN;
-}
-
-/**
- * intel_gvt_mmio_set_cmd_accessed - mark a MMIO has been accessed by command
- * @gvt: a GVT device
- * @offset: register offset
- *
- */
-void intel_gvt_mmio_set_cmd_accessed(struct intel_gvt *gvt,
-		unsigned int offset)
-{
-	gvt->mmio.mmio_attribute[offset >> 2] |=
-		F_CMD_ACCESSED;
-}
-
-/**
- * intel_gvt_mmio_has_mode_mask - if a MMIO has a mode mask
- * @gvt: a GVT device
- * @offset: register offset
- *
- * Returns:
- * True if a MMIO has a mode mask in its higher 16 bits, false if it isn't.
- *
- */
-bool intel_gvt_mmio_has_mode_mask(struct intel_gvt *gvt, unsigned int offset)
-{
-	return gvt->mmio.mmio_attribute[offset >> 2] &
-		F_MODE_MASK;
-}
 
 /**
  * intel_vgpu_default_mmio_read - default MMIO read handler
diff --git a/drivers/gpu/drm/i915/gvt/mmio.h b/drivers/gpu/drm/i915/gvt/mmio.h
index 150085a..32cd64d 100644
--- a/drivers/gpu/drm/i915/gvt/mmio.h
+++ b/drivers/gpu/drm/i915/gvt/mmio.h
@@ -87,13 +87,7 @@ int intel_vgpu_emulate_mmio_read(struct intel_vgpu *vgpu, u64 pa,
 				void *p_data, unsigned int bytes);
 int intel_vgpu_emulate_mmio_write(struct intel_vgpu *vgpu, u64 pa,
 				void *p_data, unsigned int bytes);
-bool intel_gvt_mmio_is_cmd_access(struct intel_gvt *gvt,
-				  unsigned int offset);
-bool intel_gvt_mmio_is_unalign(struct intel_gvt *gvt, unsigned int offset);
-void intel_gvt_mmio_set_accessed(struct intel_gvt *gvt, unsigned int offset);
-void intel_gvt_mmio_set_cmd_accessed(struct intel_gvt *gvt,
-				     unsigned int offset);
-bool intel_gvt_mmio_has_mode_mask(struct intel_gvt *gvt, unsigned int offset);
+
 int intel_vgpu_default_mmio_read(struct intel_vgpu *vgpu, unsigned int offset,
 				 void *p_data, unsigned int bytes);
 int intel_vgpu_default_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
-- 
2.7.4