[Intel-gfx] [PATCH 09/13] drm/i915: extract i915_debugfs.h from i915_drv.h

[Jani Nikula]

It used to be handy that we only had a couple of headers, but over time
i915_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.

Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/Makefile.header-test |  1 +
 drivers/gpu/drm/i915/i915_debugfs.c       |  1 +
 drivers/gpu/drm/i915/i915_debugfs.h       | 20 ++++++++++++++++++++
 drivers/gpu/drm/i915/i915_drv.c           |  2 ++
 drivers/gpu/drm/i915/i915_drv.h           | 12 ------------
 drivers/gpu/drm/i915/intel_dp.c           |  1 +
 drivers/gpu/drm/i915/intel_hdmi.c         |  1 +
 drivers/gpu/drm/i915/intel_pipe_crc.h     |  3 +++
 8 files changed, 29 insertions(+), 12 deletions(-)
 create mode 100644 drivers/gpu/drm/i915/i915_debugfs.h

diff --git a/drivers/gpu/drm/i915/Makefile.header-test b/drivers/gpu/drm/i915/Makefile.header-test
index c1fa85..b61fd8 100644
--- a/drivers/gpu/drm/i915/Makefile.header-test
+++ b/drivers/gpu/drm/i915/Makefile.header-test
@@ -4,6 +4,7 @@
 # Test the headers are compilable as standalone units
 header_test := \
 	i915_active_types.h \
+	i915_debugfs.h \
 	i915_drv.h \
 	i915_gem_context_types.h \
 	i915_gem_pm.h \
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 0d7d19..14cd83 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -34,6 +34,7 @@
 
 #include "gt/intel_reset.h"
 
+#include "i915_debugfs.h"
 #include "i915_gem_context.h"
 #include "i915_irq.h"
 #include "intel_csr.h"
diff --git a/drivers/gpu/drm/i915/i915_debugfs.h b/drivers/gpu/drm/i915/i915_debugfs.h
new file mode 100644
index 000000..c0cd22e
--- /dev/null
+++ b/drivers/gpu/drm/i915/i915_debugfs.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef __I915_DEBUGFS_H__
+#define __I915_DEBUGFS_H__
+
+struct drm_i915_private;
+struct drm_connector;
+
+#ifdef CONFIG_DEBUG_FS
+int i915_debugfs_register(struct drm_i915_private *dev_priv);
+int i915_debugfs_connector_add(struct drm_connector *connector);
+#else
+static inline int i915_debugfs_register(struct drm_i915_private *dev_priv) { return 0; }
+static inline int i915_debugfs_connector_add(struct drm_connector *connector) { return 0; }
+#endif
+
+#endif /* __I915_DEBUGFS_H__ */
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index c011a1b..57060a6 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -51,6 +51,7 @@
 #include "gt/intel_reset.h"
 #include "gt/intel_workarounds.h"
 
+#include "i915_debugfs.h"
 #include "i915_drv.h"
 #include "i915_irq.h"
 #include "i915_pmu.h"
@@ -66,6 +67,7 @@
 #include "intel_fbdev.h"
 #include "intel_hotplug.h"
 #include "intel_overlay.h"
+#include "intel_pipe_crc.h"
 #include "intel_pm.h"
 #include "intel_sprite.h"
 #include "intel_uc.h"
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 6ddc3d..a4ae6e 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3208,18 +3208,6 @@ u32 i915_gem_fence_size(struct drm_i915_private *dev_priv, u32 size,
 u32 i915_gem_fence_alignment(struct drm_i915_private *dev_priv, u32 size,
 			     unsigned int tiling, unsigned int stride);
 
-/* i915_debugfs.c */
-#ifdef CONFIG_DEBUG_FS
-int i915_debugfs_register(struct drm_i915_private *dev_priv);
-int i915_debugfs_connector_add(struct drm_connector *connector);
-void intel_display_crc_init(struct drm_i915_private *dev_priv);
-#else
-static inline int i915_debugfs_register(struct drm_i915_private *dev_priv) {return 0;}
-static inline int i915_debugfs_connector_add(struct drm_connector *connector)
-{ return 0; }
-static inline void intel_display_crc_init(struct drm_i915_private *dev_priv) {}
-#endif
-
 const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
 
 /* i915_cmd_parser.c */
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 04d64b..91380c 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -42,6 +42,7 @@
 #include <drm/drm_probe_helper.h>
 #include <drm/i915_drm.h>
 
+#include "i915_debugfs.h"
 #include "i915_drv.h"
 #include "intel_atomic.h"
 #include "intel_audio.h"
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 571e6b..f76327 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -39,6 +39,7 @@
 #include <drm/i915_drm.h>
 #include <drm/intel_lpe_audio.h>
 
+#include "i915_debugfs.h"
 #include "i915_drv.h"
 #include "intel_atomic.h"
 #include "intel_audio.h"
diff --git a/drivers/gpu/drm/i915/intel_pipe_crc.h b/drivers/gpu/drm/i915/intel_pipe_crc.h
index 81eaf1..db258a 100644
--- a/drivers/gpu/drm/i915/intel_pipe_crc.h
+++ b/drivers/gpu/drm/i915/intel_pipe_crc.h
@@ -9,9 +9,11 @@
 #include <linux/types.h>
 
 struct drm_crtc;
+struct drm_i915_private;
 struct intel_crtc;
 
 #ifdef CONFIG_DEBUG_FS
+void intel_display_crc_init(struct drm_i915_private *dev_priv);
 int intel_crtc_set_crc_source(struct drm_crtc *crtc, const char *source_name);
 int intel_crtc_verify_crc_source(struct drm_crtc *crtc,
 				 const char *source_name, size_t *values_cnt);
@@ -20,6 +22,7 @@ const char *const *intel_crtc_get_crc_sources(struct drm_crtc *crtc,
 void intel_crtc_disable_pipe_crc(struct intel_crtc *crtc);
 void intel_crtc_enable_pipe_crc(struct intel_crtc *crtc);
 #else
+static inline void intel_display_crc_init(struct drm_i915_private *dev_priv) {}
 #define intel_crtc_set_crc_source NULL
 #define intel_crtc_verify_crc_source NULL
 #define intel_crtc_get_crc_sources NULL
-- 
2.20.1