drm/i915/dsb: hide struct intel_dsb better

struct intel_dsb can be an opaque type, hidden in intel_dsb.c. Make it
so. Reduce related includes while at it.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220908165702.973854-1-jani.nikula@intel.com

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

@@ -26,6 +26,7 @@
 #include "intel_de.h"
 #include "intel_display_types.h"
 #include "intel_dpll.h"
+#include "intel_dsb.h"
 #include "vlv_dsi_pll.h"
 
 struct intel_color_funcs {

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

@@ -92,6 +92,7 @@
 #include "intel_dmc.h"
 #include "intel_dp_link_training.h"
 #include "intel_dpt.h"
+#include "intel_dsb.h"
 #include "intel_fbc.h"
 #include "intel_fbdev.h"
 #include "intel_fdi.h"

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

@@ -9,6 +9,36 @@
 #include "i915_drv.h"
 #include "intel_de.h"
 #include "intel_display_types.h"
+#include "intel_dsb.h"
+
+struct i915_vma;
+
+enum dsb_id {
+	INVALID_DSB = -1,
+	DSB1,
+	DSB2,
+	DSB3,
+	MAX_DSB_PER_PIPE
+};
+
+struct intel_dsb {
+	enum dsb_id id;
+	u32 *cmd_buf;
+	struct i915_vma *vma;
+
+	/*
+	 * free_pos will point the first free entry position
+	 * and help in calculating tail of command buffer.
+	 */
+	int free_pos;
+
+	/*
+	 * ins_start_offset will help to store start address of the dsb
+	 * instuction and help in identifying the batch of auto-increment
+	 * register.
+	 */
+	u32 ins_start_offset;
+};
 
 #define DSB_BUF_SIZE    (2 * PAGE_SIZE)
 

drivers/gpu/drm/i915/display/intel_dsb.h

@@ -11,34 +11,6 @@
 #include "i915_reg_defs.h"
 
 struct intel_crtc_state;
-struct i915_vma;
-
-enum dsb_id {
-	INVALID_DSB = -1,
-	DSB1,
-	DSB2,
-	DSB3,
-	MAX_DSB_PER_PIPE
-};
-
-struct intel_dsb {
-	enum dsb_id id;
-	u32 *cmd_buf;
-	struct i915_vma *vma;
-
-	/*
-	 * free_pos will point the first free entry position
-	 * and help in calculating tail of command buffer.
-	 */
-	int free_pos;
-
-	/*
-	 * ins_start_offset will help to store start address of the dsb
-	 * instuction and help in identifying the batch of auto-increment
-	 * register.
-	 */
-	u32 ins_start_offset;
-};
 
 void intel_dsb_prepare(struct intel_crtc_state *crtc_state);
 void intel_dsb_cleanup(struct intel_crtc_state *crtc_state);

drivers/gpu/drm/i915/i915_drv.h

@@ -38,7 +38,6 @@
 
 #include "display/intel_display.h"
 #include "display/intel_display_core.h"
-#include "display/intel_dsb.h"
 
 #include "gem/i915_gem_context_types.h"
 #include "gem/i915_gem_lmem.h"