drm/i915: extract intel_atomic_plane.h from intel_drv.h

It used to be handy that we only had a couple of headers, but over time
intel_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

No functional changes.

v2: revert intel_plane_destroy_state() movement within intel_atomic_plane.c

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/fd56c1cbba22b9f195ad944d79f7977423b2b533.1554461791.git.jani.nikula@intel.com

6 files changed, 44 insertions, 24 deletions

diff --git a/drivers/gpu/drm/i915/Makefile.header-test b/drivers/gpu/drm/i915/Makefile.header-test
index e78eeaa8ec33..43c939da9665 100644
--- a/drivers/gpu/drm/i915/Makefile.header-test
+++ b/drivers/gpu/drm/i915/Makefile.header-test
@@ -8,6 +8,7 @@ header_test := \
 	i915_priolist_types.h \
 	i915_scheduler_types.h \
 	i915_timeline_types.h \
+	intel_atomic_plane.h \
 	intel_audio.h \
 	intel_color.h \
 	intel_connector.h \
diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c
index 42821f8e6031..07222466506f 100644
--- a/drivers/gpu/drm/i915/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/intel_atomic_plane.c
@@ -35,6 +35,7 @@
 #include <drm/drm_fourcc.h>
 #include <drm/drm_plane_helper.h>
 
+#include "intel_atomic_plane.h"
 #include "intel_drv.h"
 #include "intel_pm.h"
 
diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.h b/drivers/gpu/drm/i915/intel_atomic_plane.h
new file mode 100644
index 000000000000..14678620440f
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_atomic_plane.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef __INTEL_ATOMIC_PLANE_H__
+#define __INTEL_ATOMIC_PLANE_H__
+
+struct drm_plane;
+struct intel_atomic_state;
+struct intel_crtc;
+struct intel_crtc_state;
+struct intel_plane;
+struct intel_plane_state;
+
+extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
+
+void intel_update_plane(struct intel_plane *plane,
+			const struct intel_crtc_state *crtc_state,
+			const struct intel_plane_state *plane_state);
+void intel_update_slave(struct intel_plane *plane,
+			const struct intel_crtc_state *crtc_state,
+			const struct intel_plane_state *plane_state);
+void intel_disable_plane(struct intel_plane *plane,
+			 const struct intel_crtc_state *crtc_state);
+struct intel_plane *intel_plane_alloc(void);
+void intel_plane_free(struct intel_plane *plane);
+struct drm_plane_state *intel_plane_duplicate_state(struct drm_plane *plane);
+void intel_plane_destroy_state(struct drm_plane *plane,
+			       struct drm_plane_state *state);
+void skl_update_planes_on_crtc(struct intel_atomic_state *state,
+			       struct intel_crtc *crtc);
+void i9xx_update_planes_on_crtc(struct intel_atomic_state *state,
+				struct intel_crtc *crtc);
+int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_state,
+					struct intel_crtc_state *crtc_state,
+					const struct intel_plane_state *old_plane_state,
+					struct intel_plane_state *intel_state);
+
+#endif /* __INTEL_ATOMIC_PLANE_H__ */
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 947e2b049056..4f53fc31dd0a 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -48,6 +48,7 @@
 #include "i915_gem_clflush.h"
 #include "i915_reset.h"
 #include "i915_trace.h"
+#include "intel_atomic_plane.h"
 #include "intel_color.h"
 #include "intel_crt.h"
 #include "intel_ddi.h"
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index d54b6134e533..ad53165d3151 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -2121,30 +2121,6 @@ int intel_atomic_setup_scalers(struct drm_i915_private *dev_priv,
 			       struct intel_crtc *intel_crtc,
 			       struct intel_crtc_state *crtc_state);
 
-/* intel_atomic_plane.c */
-void intel_update_plane(struct intel_plane *plane,
-			const struct intel_crtc_state *crtc_state,
-			const struct intel_plane_state *plane_state);
-void intel_update_slave(struct intel_plane *plane,
-			const struct intel_crtc_state *crtc_state,
-			const struct intel_plane_state *plane_state);
-void intel_disable_plane(struct intel_plane *plane,
-			 const struct intel_crtc_state *crtc_state);
-struct intel_plane *intel_plane_alloc(void);
-void intel_plane_free(struct intel_plane *plane);
-struct drm_plane_state *intel_plane_duplicate_state(struct drm_plane *plane);
-void intel_plane_destroy_state(struct drm_plane *plane,
-			       struct drm_plane_state *state);
-extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
-void skl_update_planes_on_crtc(struct intel_atomic_state *state,
-			       struct intel_crtc *crtc);
-void i9xx_update_planes_on_crtc(struct intel_atomic_state *state,
-				struct intel_crtc *crtc);
-int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_state,
-					struct intel_crtc_state *crtc_state,
-					const struct intel_plane_state *old_plane_state,
-					struct intel_plane_state *intel_state);
-
 /* intel_pipe_crc.c */
 #ifdef CONFIG_DEBUG_FS
 int intel_crtc_set_crc_source(struct drm_crtc *crtc, const char *source_name);
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 0274e70f6034..50ba32eaee9e 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -40,6 +40,7 @@
 #include <drm/i915_drm.h>
 
 #include "i915_drv.h"
+#include "intel_atomic_plane.h"
 #include "intel_drv.h"
 #include "intel_frontbuffer.h"
 #include "intel_pm.h"