drm/i915/gvt: mark symbols static where possible

Mark all local functions & variables as static.
Signed-off-by: Du, Changbin <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

drivers/gpu/drm/i915/gvt/cmd_parser.c

@@ -480,8 +480,8 @@ struct parser_exec_state {
 #define gmadr_dw_number(s)	\
 	(s->vgpu->gvt->device_info.gmadr_bytes_in_cmd >> 2)
 
-unsigned long bypass_scan_mask = 0;
-bool bypass_batch_buffer_scan = true;
+static unsigned long bypass_scan_mask = 0;
+static bool bypass_batch_buffer_scan = true;
 
 /* ring ALL, type = 0 */
 static struct sub_op_bits sub_op_mi[] = {
@@ -960,7 +960,7 @@ struct cmd_interrupt_event {
 	int mi_user_interrupt;
 };
 
-struct cmd_interrupt_event cmd_interrupt_events[] = {
+static struct cmd_interrupt_event cmd_interrupt_events[] = {
 	[RCS] = {
 		.pipe_control_notify = RCS_PIPE_CONTROL,
 		.mi_flush_dw = INTEL_GVT_EVENT_RESERVED,

drivers/gpu/drm/i915/gvt/display.c

@@ -120,7 +120,7 @@ static unsigned char virtual_dp_monitor_edid[] = {
 
 #define DPCD_HEADER_SIZE        0xb
 
-u8 dpcd_fix_data[DPCD_HEADER_SIZE] = {
+static u8 dpcd_fix_data[DPCD_HEADER_SIZE] = {
 	0x11, 0x0a, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 };
 

drivers/gpu/drm/i915/gvt/execlist.c

@@ -623,7 +623,7 @@ static int prepare_mm(struct intel_vgpu_workload *workload)
 	(list_empty(q) ? NULL : container_of(q->prev, \
 	struct intel_vgpu_workload, list))
 
-bool submit_context(struct intel_vgpu *vgpu, int ring_id,
+static bool submit_context(struct intel_vgpu *vgpu, int ring_id,
 		struct execlist_ctx_descriptor_format *desc,
 		bool emulate_schedule_in)
 {

drivers/gpu/drm/i915/gvt/gtt.c

@@ -1921,7 +1921,7 @@ int intel_vgpu_emulate_gtt_mmio_write(struct intel_vgpu *vgpu, unsigned int off,
 	return ret;
 }
 
-bool intel_gvt_create_scratch_page(struct intel_vgpu *vgpu)
+static bool create_scratch_page(struct intel_vgpu *vgpu)
 {
 	struct intel_vgpu_gtt *gtt = &vgpu->gtt;
 	void *p;
@@ -1955,7 +1955,7 @@ bool intel_gvt_create_scratch_page(struct intel_vgpu *vgpu)
 	return 0;
 }
 
-void intel_gvt_release_scratch_page(struct intel_vgpu *vgpu)
+static void release_scratch_page(struct intel_vgpu *vgpu)
 {
 	if (vgpu->gtt.scratch_page != NULL) {
 		__free_page(vgpu->gtt.scratch_page);
@@ -1995,7 +1995,7 @@ int intel_vgpu_init_gtt(struct intel_vgpu *vgpu)
 
 	gtt->ggtt_mm = ggtt_mm;
 
-	intel_gvt_create_scratch_page(vgpu);
+	create_scratch_page(vgpu);
 	return 0;
 }
 
@@ -2015,7 +2015,7 @@ void intel_vgpu_clean_gtt(struct intel_vgpu *vgpu)
 	struct intel_vgpu_mm *mm;
 
 	ppgtt_free_all_shadow_page(vgpu);
-	intel_gvt_release_scratch_page(vgpu);
+	release_scratch_page(vgpu);
 
 	list_for_each_safe(pos, n, &vgpu->gtt.mm_list_head) {
 		mm = container_of(pos, struct intel_vgpu_mm, list);

drivers/gpu/drm/i915/gvt/interrupt.c

@@ -50,7 +50,7 @@
 static void update_upstream_irq(struct intel_vgpu *vgpu,
 		struct intel_gvt_irq_info *info);
 
-const char * const irq_name[INTEL_GVT_EVENT_MAX] = {
+static const char * const irq_name[INTEL_GVT_EVENT_MAX] = {
 	[RCS_MI_USER_INTERRUPT] = "Render CS MI USER INTERRUPT",
 	[RCS_DEBUG] = "Render EU debug from SVG",
 	[RCS_MMIO_SYNC_FLUSH] = "Render MMIO sync flush status",

drivers/gpu/drm/i915/gvt/sched_policy.c

@@ -236,7 +236,7 @@ static void tbs_sched_stop_schedule(struct intel_vgpu *vgpu)
 	list_del_init(&vgpu_data->list);
 }
 
-struct intel_gvt_sched_policy_ops tbs_schedule_ops = {
+static struct intel_gvt_sched_policy_ops tbs_schedule_ops = {
 	.init = tbs_sched_init,
 	.clean = tbs_sched_clean,
 	.init_vgpu = tbs_sched_init_vgpu,

drivers/gpu/drm/i915/gvt/scheduler.c

@@ -41,7 +41,8 @@
 #define RING_CTX_OFF(x) \
 	offsetof(struct execlist_ring_context, x)
 
-void set_context_pdp_root_pointer(struct execlist_ring_context *ring_context,
+static void set_context_pdp_root_pointer(
+		struct execlist_ring_context *ring_context,
 		u32 pdp[8])
 {
 	struct execlist_mmio_pair *pdp_pair = &ring_context->pdp3_UDW;