drm/radeon/evergreen: Move 'evergreen_*' and 'sumo_*' prototypes out to shared location

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/radeon/evergreen.c:1281:6: warning: no previous prototype for ‘evergreen_fix_pci_max_read_req_size’ [-Wmissing-prototypes]
 1281 | void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev)
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/evergreen.c:2664:6: warning: no previous prototype for ‘evergreen_mc_stop’ [-Wmissing-prototypes]
 2664 | void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save)
 | ^~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/evergreen.c:2762:6: warning: no previous prototype for ‘evergreen_mc_resume’ [-Wmissing-prototypes]
 2762 | void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save)
 | ^~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/evergreen.c:2850:6: warning: no previous prototype for ‘evergreen_mc_program’ [-Wmissing-prototypes]
 2850 | void evergreen_mc_program(struct radeon_device *rdev)
 | ^~~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/evergreen.c:3710:5: warning: no previous prototype for ‘evergreen_mc_init’ [-Wmissing-prototypes]
 3710 | int evergreen_mc_init(struct radeon_device *rdev)
 | ^~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/evergreen.c:3769:6: warning: no previous prototype for ‘evergreen_print_gpu_status_regs’ [-Wmissing-prototypes]
 3769 | void evergreen_print_gpu_status_regs(struct radeon_device *rdev)
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/evergreen.c:3797:6: warning: no previous prototype for ‘evergreen_is_display_hung’ [-Wmissing-prototypes]
 3797 | bool evergreen_is_display_hung(struct radeon_device *rdev)
 | ^~~~~~~~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/evergreen.c:4009:6: warning: no previous prototype for ‘evergreen_gpu_pci_config_reset’ [-Wmissing-prototypes]
 4009 | void evergreen_gpu_pci_config_reset(struct radeon_device *rdev)
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 drivers/gpu/drm/radeon/evergreen.c:4110:6: warning: no previous prototype for ‘sumo_rlc_fini’ [-Wmissing-prototypes]
 4110 | void sumo_rlc_fini(struct radeon_device *rdev)
 | ^~~~~~~~~~~~~
 drivers/gpu/drm/radeon/evergreen.c:4153:5: warning: no previous prototype for ‘sumo_rlc_init’ [-Wmissing-prototypes]
 4153 | int sumo_rlc_init(struct radeon_device *rdev)
 | ^~~~~~~~~~~~~
 drivers/gpu/drm/radeon/evergreen.c:4381:5: warning: no previous prototype for ‘evergreen_rlc_resume’ [-Wmissing-prototypes]
 4381 | int evergreen_rlc_resume(struct radeon_device *rdev)
 | ^~~~~~~~~~~~~
 drivers/gpu/drm/radeon/evergreen.c:4670:6: warning: no previous prototype for ‘evergreen_irq_suspend’ [-Wmissing-prototypes]
 4670 | void evergreen_irq_suspend(struct radeon_device *rdev)
 | ^~~~~~~~~~~~~~~~~~~~~

NB: Lots more of these - snipped for brevity

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/cik.c

@@ -30,6 +30,7 @@
 #include <drm/drm_vblank.h>
 
 #include "atom.h"
+#include "evergreen.h"
 #include "cik_blit_shaders.h"
 #include "cikd.h"
 #include "clearstate_ci.h"
@@ -126,11 +127,6 @@ MODULE_FIRMWARE("radeon/mullins_sdma.bin");
 
 extern int r600_ih_ring_alloc(struct radeon_device *rdev);
 extern void r600_ih_ring_fini(struct radeon_device *rdev);
-extern void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save);
-extern void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save);
-extern bool evergreen_is_display_hung(struct radeon_device *rdev);
-extern void sumo_rlc_fini(struct radeon_device *rdev);
-extern int sumo_rlc_init(struct radeon_device *rdev);
 extern void si_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc);
 extern void si_rlc_reset(struct radeon_device *rdev);
 extern void si_init_uvd_internal_cg(struct radeon_device *rdev);

drivers/gpu/drm/radeon/evergreen.c

@@ -32,6 +32,7 @@
 #include "atom.h"
 #include "avivod.h"
 #include "rv770.h"
+#include "evergreen.h"
 #include "evergreen_blit_shaders.h"
 #include "evergreen_reg.h"
 #include "evergreend.h"

drivers/gpu/drm/radeon/evergreen.h

+/* radeon_evergreen.h -- Private header for radeon driver -*- linux-c -*-
+ *
+ * Copyright 2010 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef __RADEON_EVERGREEN_H__
+#define __RADEON_EVERGREEN_H__
+
+struct evergreen_mc_save;
+struct radeon_device;
+
+bool evergreen_is_display_hung(struct radeon_device *rdev);
+void evergreen_print_gpu_status_regs(struct radeon_device *rdev);
+void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save);
+void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save);
+int evergreen_mc_wait_for_idle(struct radeon_device *rdev);
+void evergreen_mc_program(struct radeon_device *rdev);
+void evergreen_irq_suspend(struct radeon_device *rdev);
+int evergreen_mc_init(struct radeon_device *rdev);
+void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev);
+void evergreen_pcie_gen2_enable(struct radeon_device *rdev);
+void evergreen_program_aspm(struct radeon_device *rdev);
+void sumo_rlc_fini(struct radeon_device *rdev);
+int sumo_rlc_init(struct radeon_device *rdev);
+void evergreen_gpu_pci_config_reset(struct radeon_device *rdev);
+u32 evergreen_get_number_of_dram_channels(struct radeon_device *rdev);
+void evergreen_print_gpu_status_regs(struct radeon_device *rdev);
+
+#endif				/* __RADEON_EVERGREEN_H__ */

drivers/gpu/drm/radeon/ni.c

@@ -32,6 +32,7 @@
 #include "atom.h"
 #include "cayman_blit_shaders.h"
 #include "clearstate_cayman.h"
+#include "evergreen.h"
 #include "ni_reg.h"
 #include "nid.h"
 #include "radeon.h"
@@ -190,21 +191,6 @@ static const u32 tn_rlc_save_restore_register_list[] =
 	0x802c,
 };
 
-extern bool evergreen_is_display_hung(struct radeon_device *rdev);
-extern void evergreen_print_gpu_status_regs(struct radeon_device *rdev);
-extern void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save);
-extern void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save);
-extern int evergreen_mc_wait_for_idle(struct radeon_device *rdev);
-extern void evergreen_mc_program(struct radeon_device *rdev);
-extern void evergreen_irq_suspend(struct radeon_device *rdev);
-extern int evergreen_mc_init(struct radeon_device *rdev);
-extern void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev);
-extern void evergreen_pcie_gen2_enable(struct radeon_device *rdev);
-extern void evergreen_program_aspm(struct radeon_device *rdev);
-extern void sumo_rlc_fini(struct radeon_device *rdev);
-extern int sumo_rlc_init(struct radeon_device *rdev);
-extern void evergreen_gpu_pci_config_reset(struct radeon_device *rdev);
-
 /* Firmware Names */
 MODULE_FIRMWARE("radeon/BARTS_pfp.bin");
 MODULE_FIRMWARE("radeon/BARTS_me.bin");

drivers/gpu/drm/radeon/si.c

@@ -32,6 +32,7 @@
 
 #include "atom.h"
 #include "clearstate_si.h"
+#include "evergreen.h"
 #include "radeon.h"
 #include "radeon_asic.h"
 #include "radeon_audio.h"
@@ -129,12 +130,6 @@ extern void sumo_rlc_fini(struct radeon_device *rdev);
 extern int sumo_rlc_init(struct radeon_device *rdev);
 extern int r600_ih_ring_alloc(struct radeon_device *rdev);
 extern void r600_ih_ring_fini(struct radeon_device *rdev);
-extern void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev);
-extern void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save);
-extern void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save);
-extern u32 evergreen_get_number_of_dram_channels(struct radeon_device *rdev);
-extern void evergreen_print_gpu_status_regs(struct radeon_device *rdev);
-extern bool evergreen_is_display_hung(struct radeon_device *rdev);
 static void si_enable_gui_idle_interrupt(struct radeon_device *rdev,
 					 bool enable);
 static void si_init_pg(struct radeon_device *rdev);