drm/i915: extract intel_csr.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: Add function argument names to fix checkpatch warning

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/44ceebca0206de9c40dc6794b660d84b8994f700.1554461791.git.jani.nikula@intel.com

diff --git a/drivers/gpu/drm/i915/Makefile.header-test b/drivers/gpu/drm/i915/Makefile.header-test
index c0095a4..e03285c 100644 (file)
--- a/drivers/gpu/drm/i915/Makefile.header-test
+++ b/drivers/gpu/drm/i915/Makefile.header-test
@@ -12,6 +12,7 @@ header_test := \
        intel_connector.h \
        intel_context_types.h \
        intel_crt.h \
+       intel_csr.h \
        intel_ddi.h \
        intel_engine_types.h \
        intel_frontbuffer.h \

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 24f915d..b902b73 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -54,6 +54,7 @@
 #include "i915_trace.h"
 #include "i915_vgpu.h"
 #include "intel_audio.h"
+#include "intel_csr.h"
 #include "intel_drv.h"
 #include "intel_uc.h"
 #include "intel_workarounds.h"

diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
index 862a8f6..f43c2a2 100644 (file)
--- a/drivers/gpu/drm/i915/intel_csr.c
+++ b/drivers/gpu/drm/i915/intel_csr.c
@@ -21,9 +21,12 @@
  * IN THE SOFTWARE.
  *
  */
+
 #include <linux/firmware.h>
+
 #include "i915_drv.h"
 #include "i915_reg.h"
+#include "intel_csr.h"
 
 /**
  * DOC: csr support for dmc

diff --git a/drivers/gpu/drm/i915/intel_csr.h b/drivers/gpu/drm/i915/intel_csr.h
new file mode 100644 (file)
index 0000000..17a32c1
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_csr.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef __INTEL_CSR_H__
+#define __INTEL_CSR_H__
+
+struct drm_i915_private;
+
+void intel_csr_ucode_init(struct drm_i915_private *i915);
+void intel_csr_load_program(struct drm_i915_private *i915);
+void intel_csr_ucode_fini(struct drm_i915_private *i915);
+void intel_csr_ucode_suspend(struct drm_i915_private *i915);
+void intel_csr_ucode_resume(struct drm_i915_private *i915);
+
+#endif /* __INTEL_CSR_H__ */

diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 2b2aa63..9404dfc 100644 (file)
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1846,13 +1846,6 @@ unsigned int i9xx_plane_max_stride(struct intel_plane *plane,
                                   u32 pixel_format, u64 modifier,
                                   unsigned int rotation);
 
-/* intel_csr.c */
-void intel_csr_ucode_init(struct drm_i915_private *);
-void intel_csr_load_program(struct drm_i915_private *);
-void intel_csr_ucode_fini(struct drm_i915_private *);
-void intel_csr_ucode_suspend(struct drm_i915_private *);
-void intel_csr_ucode_resume(struct drm_i915_private *);
-
 /* intel_dp.c */
 struct link_config_limits {
        int min_clock, max_clock;

diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index a993108..b72af95 100644 (file)
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -33,6 +33,7 @@
 
 #include "i915_drv.h"
 #include "intel_crt.h"
+#include "intel_csr.h"
 #include "intel_drv.h"
 
 /**