diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index fa4f8f0..2bbb916 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -291,10 +291,6 @@ static void radeon_atom_backlight_exit(struct radeon_encoder *encoder)
 
 #endif
 
-/* evil but including atombios.h is much worse */
-bool radeon_atom_get_tv_timings(struct radeon_device *rdev, int index,
-				struct drm_display_mode *mode);
-
 static bool radeon_atom_mode_fixup(struct drm_encoder *encoder,
 				   const struct drm_display_mode *mode,
 				   struct drm_display_mode *adjusted_mode)
diff --git a/drivers/gpu/drm/radeon/btc_dpm.c b/drivers/gpu/drm/radeon/btc_dpm.c
index 38e5123..2b08cfd 100644
--- a/drivers/gpu/drm/radeon/btc_dpm.c
+++ b/drivers/gpu/drm/radeon/btc_dpm.c
@@ -47,10 +47,6 @@
 #ifndef BTC_MGCG_SEQUENCE
 #define BTC_MGCG_SEQUENCE  300
 
-struct rv7xx_ps *rv770_get_ps(struct radeon_ps *rps);
-struct rv7xx_power_info *rv770_get_pi(struct radeon_device *rdev);
-struct evergreen_power_info *evergreen_get_pi(struct radeon_device *rdev);
-
 extern int ni_mc_load_microcode(struct radeon_device *rdev);
 
 //********* BARTS **************//
diff --git a/drivers/gpu/drm/radeon/ci_dpm.c b/drivers/gpu/drm/radeon/ci_dpm.c
index 7ba4508..57ac808 100644
--- a/drivers/gpu/drm/radeon/ci_dpm.c
+++ b/drivers/gpu/drm/radeon/ci_dpm.c
@@ -165,16 +165,6 @@ static const struct ci_pt_config_reg didt_config_ci[] =
 extern u8 rv770_get_memory_module_index(struct radeon_device *rdev);
 extern int ni_copy_and_switch_arb_sets(struct radeon_device *rdev,
 				       u32 arb_freq_src, u32 arb_freq_dest);
-extern u8 si_get_ddr3_mclk_frequency_ratio(u32 memory_clock);
-extern u8 si_get_mclk_frequency_ratio(u32 memory_clock, bool strobe_mode);
-extern void si_trim_voltage_table_to_fit_state_table(struct radeon_device *rdev,
-						     u32 max_voltage_steps,
-						     struct atom_voltage_table *voltage_table);
-extern void cik_enter_rlc_safe_mode(struct radeon_device *rdev);
-extern void cik_exit_rlc_safe_mode(struct radeon_device *rdev);
-extern int ci_mc_load_microcode(struct radeon_device *rdev);
-extern void cik_update_cg(struct radeon_device *rdev,
-			  u32 block, bool enable);
 
 static int ci_get_std_voltage_value_sidd(struct radeon_device *rdev,
 					 struct atom_voltage_table_entry *voltage_table,
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index f6ff41a..7f2daf5 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -118,21 +118,7 @@ MODULE_FIRMWARE("radeon/mullins_mec.bin");
 MODULE_FIRMWARE("radeon/mullins_rlc.bin");
 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);
 static u32 cik_get_cu_active_bitmap(struct radeon_device *rdev, u32 se, u32 sh);
-extern int cik_sdma_resume(struct radeon_device *rdev);
-extern void cik_sdma_enable(struct radeon_device *rdev, bool enable);
-extern void cik_sdma_fini(struct radeon_device *rdev);
-extern void vce_v2_0_enable_mgcg(struct radeon_device *rdev, bool enable);
 static void cik_rlc_stop(struct radeon_device *rdev);
 static void cik_pcie_gen3_enable(struct radeon_device *rdev);
 static void cik_program_aspm(struct radeon_device *rdev);
diff --git a/drivers/gpu/drm/radeon/cik_sdma.c b/drivers/gpu/drm/radeon/cik_sdma.c
index 9c351dc..5f0862d 100644
--- a/drivers/gpu/drm/radeon/cik_sdma.c
+++ b/drivers/gpu/drm/radeon/cik_sdma.c
@@ -33,8 +33,6 @@
 #define CIK_SDMA_UCODE_SIZE 1050
 #define CIK_SDMA_UCODE_VERSION 64
 
-u32 cik_gpu_check_soft_reset(struct radeon_device *rdev);
-
 /*
  * sDMA - System DMA
  * Starting with CIK, the GPU has new asynchronous
diff --git a/drivers/gpu/drm/radeon/cypress_dpm.c b/drivers/gpu/drm/radeon/cypress_dpm.c
index a4edd07..3bdb82e 100644
--- a/drivers/gpu/drm/radeon/cypress_dpm.c
+++ b/drivers/gpu/drm/radeon/cypress_dpm.c
@@ -42,10 +42,6 @@
 #define MC_CG_SEQ_YCLK_SUSPEND      0x04
 #define MC_CG_SEQ_YCLK_RESUME       0x0a
 
-struct rv7xx_ps *rv770_get_ps(struct radeon_ps *rps);
-struct rv7xx_power_info *rv770_get_pi(struct radeon_device *rdev);
-struct evergreen_power_info *evergreen_get_pi(struct radeon_device *rdev);
-
 static void cypress_enable_bif_dynamic_pcie_gen2(struct radeon_device *rdev,
 						 bool enable)
 {
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 0b6b576..943a696 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -205,17 +205,6 @@ static void evergreen_gpu_init(struct radeon_device *rdev);
 void evergreen_fini(struct radeon_device *rdev);
 void evergreen_pcie_gen2_enable(struct radeon_device *rdev);
 void evergreen_program_aspm(struct radeon_device *rdev);
-extern void cayman_cp_int_cntl_setup(struct radeon_device *rdev,
-				     int ring, u32 cp_int_cntl);
-extern void cayman_vm_decode_fault(struct radeon_device *rdev,
-				   u32 status, u32 addr);
-void cik_init_cp_pg_table(struct radeon_device *rdev);
-
-extern u32 si_get_csb_size(struct radeon_device *rdev);
-extern void si_get_csb_buffer(struct radeon_device *rdev, volatile u32 *buffer);
-extern u32 cik_get_csb_size(struct radeon_device *rdev);
-extern void cik_get_csb_buffer(struct radeon_device *rdev, volatile u32 *buffer);
-extern void rv770_set_clk_bypass_mode(struct radeon_device *rdev);
 
 static const u32 evergreen_golden_registers[] =
 {
diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
index f8b0509..cfc4cc9 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -37,8 +37,6 @@
 
 #define REG_SAFE_BM_SIZE ARRAY_SIZE(evergreen_reg_safe_bm)
 
-int r600_dma_cs_next_reloc(struct radeon_cs_parser *p,
-			   struct radeon_bo_list **cs_reloc);
 struct evergreen_cs_track {
 	u32			group_size;
 	u32			nbanks;
diff --git a/drivers/gpu/drm/radeon/evergreen_dma.c b/drivers/gpu/drm/radeon/evergreen_dma.c
index 96535aa..67f350e 100644
--- a/drivers/gpu/drm/radeon/evergreen_dma.c
+++ b/drivers/gpu/drm/radeon/evergreen_dma.c
@@ -26,8 +26,6 @@
 #include "radeon_asic.h"
 #include "evergreend.h"
 
-u32 evergreen_gpu_check_soft_reset(struct radeon_device *rdev);
-
 /**
  * evergreen_dma_fence_ring_emit - emit a fence on the DMA ring
  *
diff --git a/drivers/gpu/drm/radeon/kv_dpm.c b/drivers/gpu/drm/radeon/kv_dpm.c
index a7e9786..dee537c 100644
--- a/drivers/gpu/drm/radeon/kv_dpm.c
+++ b/drivers/gpu/drm/radeon/kv_dpm.c
@@ -58,11 +58,6 @@ static void kv_dpm_powergate_vce(struct radeon_device *rdev, bool gate);
 static void kv_dpm_powergate_samu(struct radeon_device *rdev, bool gate);
 static void kv_dpm_powergate_acp(struct radeon_device *rdev, bool gate);
 
-extern void cik_enter_rlc_safe_mode(struct radeon_device *rdev);
-extern void cik_exit_rlc_safe_mode(struct radeon_device *rdev);
-extern void cik_update_cg(struct radeon_device *rdev,
-			  u32 block, bool enable);
-
 static const struct kv_lcac_config_values sx_local_cac_cfg_kv[] =
 {
 	{  0,       4,        1    },
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 103fc86..1a69aa0 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -187,20 +187,9 @@ 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");
diff --git a/drivers/gpu/drm/radeon/ni_dma.c b/drivers/gpu/drm/radeon/ni_dma.c
index ce787a9..62165f9d 100644
--- a/drivers/gpu/drm/radeon/ni_dma.c
+++ b/drivers/gpu/drm/radeon/ni_dma.c
@@ -27,8 +27,6 @@
 #include "radeon_trace.h"
 #include "nid.h"
 
-u32 cayman_gpu_check_soft_reset(struct radeon_device *rdev);
-
 /*
  * DMA
  * Starting with R600, the GPU has an asynchronous
diff --git a/drivers/gpu/drm/radeon/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c
index 4a601f9..1ad4bf3 100644
--- a/drivers/gpu/drm/radeon/ni_dpm.c
+++ b/drivers/gpu/drm/radeon/ni_dpm.c
@@ -718,9 +718,6 @@ static const u32 cayman_sysls_enable[] =
 };
 #define CAYMAN_SYSLS_ENABLE_LENGTH sizeof(cayman_sysls_enable) / (3 * sizeof(u32))
 
-struct rv7xx_power_info *rv770_get_pi(struct radeon_device *rdev);
-struct evergreen_power_info *evergreen_get_pi(struct radeon_device *rdev);
-
 extern int ni_mc_load_microcode(struct radeon_device *rdev);
 
 struct ni_power_info *ni_get_pi(struct radeon_device *rdev)
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index a951881..dceafe5 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -105,8 +105,6 @@ static void r600_gpu_init(struct radeon_device *rdev);
 void r600_fini(struct radeon_device *rdev);
 void r600_irq_disable(struct radeon_device *rdev);
 static void r600_pcie_gen2_enable(struct radeon_device *rdev);
-extern int evergreen_rlc_resume(struct radeon_device *rdev);
-extern void rv770_set_clk_bypass_mode(struct radeon_device *rdev);
 
 /*
  * Indirect registers accessor
diff --git a/drivers/gpu/drm/radeon/r600_dma.c b/drivers/gpu/drm/radeon/r600_dma.c
index fb65e6f..80c1b7a 100644
--- a/drivers/gpu/drm/radeon/r600_dma.c
+++ b/drivers/gpu/drm/radeon/r600_dma.c
@@ -26,8 +26,6 @@
 #include "radeon_asic.h"
 #include "r600d.h"
 
-u32 r600_gpu_check_soft_reset(struct radeon_device *rdev);
-
 /*
  * DMA
  * Starting with R600, the GPU has an asynchronous
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 1b0dcad..9c02fbc 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -2976,4 +2976,211 @@ int r600_cs_common_vline_parse(struct radeon_cs_parser *p,
 
 #include "radeon_object.h"
 
+extern bool radeon_device_is_virtual(void);
+extern int radeon_driver_unload_kms(struct drm_device *dev);
+extern int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
+extern void radeon_driver_lastclose_kms(struct drm_device *dev);
+extern int
+radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv);
+extern void radeon_driver_postclose_kms(struct drm_device *dev,
+		struct drm_file *file_priv);
+extern void radeon_driver_preclose_kms(struct drm_device *dev,
+		struct drm_file *file_priv);
+extern u32
+radeon_get_vblank_counter_kms(struct drm_device *dev, unsigned int pipe);
+extern int radeon_enable_vblank_kms(struct drm_device *dev, unsigned int pipe);
+extern void
+radeon_disable_vblank_kms(struct drm_device *dev, unsigned int pipe);
+extern int
+radeon_get_vblank_timestamp_kms(struct drm_device *dev, unsigned int pipe,
+		int *max_error, struct timeval *vblank_time,
+		unsigned int flags);
+bool radeon_atom_get_tv_timings(struct radeon_device *rdev, int index,
+				struct drm_display_mode *mode);
+/* from radeon_object.c */
+int radeon_ttm_init(struct radeon_device *rdev);
+void radeon_ttm_fini(struct radeon_device *rdev);
+
+extern int radeon_mmap(struct file *filp, struct vm_area_struct *vma);
+
+void radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder,
+				  struct drm_connector *drm_connector);
+void radeon_add_legacy_encoder(struct drm_device *dev,
+		uint32_t encoder_enum, uint32_t supported_device);
+
+extern void radeon_gem_object_free(struct drm_gem_object *obj);
+extern int radeon_gem_object_open(struct drm_gem_object *obj,
+				  struct drm_file *file_priv);
+extern void radeon_gem_object_close(struct drm_gem_object *obj,
+				    struct drm_file *file_priv);
+extern irqreturn_t radeon_driver_irq_handler_kms(int irq, void *arg);
+extern void radeon_driver_irq_preinstall_kms(struct drm_device *dev);
+extern int radeon_driver_irq_postinstall_kms(struct drm_device *dev);
+extern void radeon_driver_irq_uninstall_kms(struct drm_device *dev);
+
+u32 r600_gpu_check_soft_reset(struct radeon_device *rdev);
+int r600_ih_ring_alloc(struct radeon_device *rdev);
+void r600_ih_ring_fini(struct radeon_device *rdev);
+void rv770_set_clk_bypass_mode(struct radeon_device *rdev);
+void radeon_pm_acpi_event_handler(struct radeon_device *rdev);
+void r600_hdmi_update_acr(struct drm_encoder *encoder, long offset,
+			  const struct radeon_hdmi_acr *acr);
+void r600_set_avi_packet(struct radeon_device *rdev, u32 offset,
+			 unsigned char *buffer, size_t size);
+void r600_hdmi_audio_set_dto(struct radeon_device *rdev,
+			     struct radeon_crtc *crtc, unsigned int clock);
+void r600_set_vbi_packet(struct drm_encoder *encoder, u32 offset);
+void r600_set_audio_packet(struct drm_encoder *encoder, u32 offset);
+void r600_set_mute(struct drm_encoder *encoder, u32 offset, bool mute);
+void r600_hdmi_enable(struct drm_encoder *encoder, bool enable);
+void dce3_2_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
+					       u8 *sadb, int sad_count);
+void dce3_2_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
+					     u8 *sadb, int sad_count);
+void dce3_2_afmt_write_sad_regs(struct drm_encoder *encoder,
+				struct cea_sad *sads, int sad_count);
+void dce3_2_audio_set_dto(struct radeon_device *rdev,
+			  struct radeon_crtc *crtc, unsigned int clock);
+void dce3_2_hdmi_update_acr(struct drm_encoder *encoder, long offset,
+			    const struct radeon_hdmi_acr *acr);
+void dce3_2_set_audio_packet(struct drm_encoder *encoder, u32 offset);
+void dce3_2_set_mute(struct drm_encoder *encoder, u32 offset, bool mute);
+
+/*
+ * evergreen
+ */
+struct evergreen_mc_save {
+	u32 vga_render_control;
+	u32 vga_hdp_control;
+	bool crtc_enabled[RADEON_MAX_CRTCS];
+};
+
+void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev);
+u32 evergreen_get_number_of_dram_channels(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);
+void evergreen_mc_program(struct radeon_device *rdev);
+int evergreen_mc_init(struct radeon_device *rdev);
+void evergreen_print_gpu_status_regs(struct radeon_device *rdev);
+bool evergreen_is_display_hung(struct radeon_device *rdev);
+u32 evergreen_gpu_check_soft_reset(struct radeon_device *rdev);
+void evergreen_gpu_pci_config_reset(struct radeon_device *rdev);
+
+void sumo_rlc_fini(struct radeon_device *rdev);
+int sumo_rlc_init(struct radeon_device *rdev);
+int evergreen_rlc_resume(struct radeon_device *rdev);
+void evergreen_irq_suspend(struct radeon_device *rdev);
+void dce4_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin,
+		       u8 enable_mask);
+void evergreen_hdmi_update_acr(struct drm_encoder *encoder, long offset,
+			       const struct radeon_hdmi_acr *acr);
+void dce4_afmt_write_latency_fields(struct drm_encoder *encoder,
+		struct drm_connector *connector, struct drm_display_mode *mode);
+void dce4_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
+				u8 *sadb, int sad_count);
+void dce4_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
+				u8 *sadb, int sad_count);
+void evergreen_hdmi_write_sad_regs(struct drm_encoder *encoder,
+		struct cea_sad *sads, int sad_count);
+void evergreen_set_avi_packet(struct radeon_device *rdev, u32 offset,
+		unsigned char *buffer, size_t size);
+void dce4_hdmi_audio_set_dto(struct radeon_device *rdev,
+		struct radeon_crtc *crtc, unsigned int clock);
+void dce4_dp_audio_set_dto(struct radeon_device *rdev,
+		struct radeon_crtc *crtc, unsigned int clock);
+void dce4_set_vbi_packet(struct drm_encoder *encoder, u32 offset);
+void dce4_hdmi_set_color_depth(struct drm_encoder *encoder,
+		u32 offset, int bpc);
+void dce4_set_audio_packet(struct drm_encoder *encoder, u32 offset);
+void dce4_set_mute(struct drm_encoder *encoder, u32 offset, bool mute);
+void cayman_cp_int_cntl_setup(struct radeon_device *rdev,
+		int ring, u32 cp_int_cntl);
+u32 cayman_gpu_check_soft_reset(struct radeon_device *rdev);
+void cayman_vm_decode_fault(struct radeon_device *rdev,
+		u32 status, u32 addr);
+void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable);
+void evergreen_dp_enable(struct drm_encoder *encoder, bool enable);
+
+void radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
+		struct drm_connector *drm_connector);
+void radeon_add_atom_encoder(struct drm_device *dev, uint32_t encoder_enum,
+		uint32_t supported_device, u16 caps);
+int radeon_atom_hw_i2c_xfer(struct i2c_adapter *i2c_adap,
+		struct i2c_msg *msgs, int num);
+u32 radeon_atom_hw_i2c_func(struct i2c_adapter *adap);
+
+int si_mc_load_microcode(struct radeon_device *rdev);
+u32 si_gpu_check_soft_reset(struct radeon_device *rdev);
+void si_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc);
+void si_init_uvd_internal_cg(struct radeon_device *rdev);
+u32 si_get_csb_size(struct radeon_device *rdev);
+void si_get_csb_buffer(struct radeon_device *rdev, volatile u32 *buffer);
+void si_rlc_reset(struct radeon_device *rdev);
+
+extern struct sg_table *
+radeon_gem_prime_get_sg_table(struct drm_gem_object *obj);
+extern void *radeon_gem_prime_vmap(struct drm_gem_object *obj);
+extern void radeon_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
+
+extern struct drm_gem_object *
+radeon_gem_prime_import_sg_table(struct drm_device *dev,
+		struct dma_buf_attachment *attach, struct sg_table *sg);
+
+extern int radeon_gem_prime_pin(struct drm_gem_object *obj);
+extern void radeon_gem_prime_unpin(struct drm_gem_object *obj);
+extern struct reservation_object *
+radeon_gem_prime_res_obj(struct drm_gem_object *obj);
+extern struct dma_buf *radeon_gem_prime_export(struct drm_device *dev,
+		struct drm_gem_object *gobj, int flags);
+
+int ci_mc_load_microcode(struct radeon_device *rdev);
+u32 cik_gpu_check_soft_reset(struct radeon_device *rdev);
+void cik_enter_rlc_safe_mode(struct radeon_device *rdev);
+void cik_exit_rlc_safe_mode(struct radeon_device *rdev);
+void cik_update_cg(struct radeon_device *rdev, u32 block, bool enable);
+
+void cik_init_cp_pg_table(struct radeon_device *rdev);
+u32 cik_get_csb_size(struct radeon_device *rdev);
+
+void cik_get_csb_buffer(struct radeon_device *rdev, volatile u32 *buffer);
+struct rv7xx_ps *rv770_get_ps(struct radeon_ps *rps);
+struct rv7xx_power_info *rv770_get_pi(struct radeon_device *rdev);
+struct evergreen_power_info *evergreen_get_pi(struct radeon_device *rdev);
+struct sumo_power_info *sumo_get_pi(struct radeon_device *rdev);
+struct ni_power_info *ni_get_pi(struct radeon_device *rdev);
+struct ni_ps *ni_get_ps(struct radeon_ps *rps);
+
+u8 si_get_ddr3_mclk_frequency_ratio(u32 memory_clock);
+u8 si_get_mclk_frequency_ratio(u32 memory_clock, bool strobe_mode);
+void si_trim_voltage_table_to_fit_state_table(struct radeon_device *rdev,
+		u32 max_voltage_steps,
+		struct atom_voltage_table *voltage_table);
+u32 dce6_endpoint_rreg(struct radeon_device *rdev, u32 offset, u32 reg);
+void dce6_endpoint_wreg(struct radeon_device *rdev, u32 offset, u32 reg, u32 v);
+void dce6_afmt_select_pin(struct drm_encoder *encoder);
+void dce6_afmt_write_latency_fields(struct drm_encoder *encoder,
+		struct drm_connector *connector, struct drm_display_mode *mode);
+void dce6_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
+		u8 *sadb, int sad_count);
+void dce6_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
+		u8 *sadb, int sad_count);
+void dce6_afmt_write_sad_regs(struct drm_encoder *encoder, struct cea_sad *sads,
+		int sad_count);
+void dce6_hdmi_audio_set_dto(struct radeon_device *rdev,
+		struct radeon_crtc *crtc, unsigned int clock);
+void dce6_dp_audio_set_dto(struct radeon_device *rdev, struct radeon_crtc *crtc,
+		unsigned int clock);
+void cik_sdma_enable(struct radeon_device *rdev, bool enable);
+int cik_sdma_resume(struct radeon_device *rdev);
+void cik_sdma_fini(struct radeon_device *rdev);
+
+void vce_v1_0_enable_mgcg(struct radeon_device *rdev, bool enable);
+void vce_v2_0_enable_mgcg(struct radeon_device *rdev, bool enable);
+
+int r600_dma_cs_next_reloc(struct radeon_cs_parser *p,
+		struct radeon_bo_list **cs_reloc);
+
+
 #endif
diff --git a/drivers/gpu/drm/radeon/radeon_acpi.c b/drivers/gpu/drm/radeon/radeon_acpi.c
index 6efbd65..231d01d 100644
--- a/drivers/gpu/drm/radeon/radeon_acpi.c
+++ b/drivers/gpu/drm/radeon/radeon_acpi.c
@@ -41,8 +41,6 @@ static inline bool radeon_atpx_dgpu_req_power_for_displays(void) { return false;
 
 #define ACPI_AC_CLASS           "ac_adapter"
 
-extern void radeon_pm_acpi_event_handler(struct radeon_device *rdev);
-
 struct atif_verify_interface {
 	u16 size;		/* structure size in bytes (includes size field) */
 	u16 version;		/* version */
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index e3f036c..48b46fb 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -498,15 +498,6 @@ bool rv770_dpm_vblank_too_short(struct radeon_device *rdev);
 u32 rv770_dpm_get_current_sclk(struct radeon_device *rdev);
 u32 rv770_dpm_get_current_mclk(struct radeon_device *rdev);
 
-/*
- * evergreen
- */
-struct evergreen_mc_save {
-	u32 vga_render_control;
-	u32 vga_hdp_control;
-	bool crtc_enabled[RADEON_MAX_CRTCS];
-};
-
 void evergreen_pcie_gart_tlb_flush(struct radeon_device *rdev);
 int evergreen_init(struct radeon_device *rdev);
 void evergreen_fini(struct radeon_device *rdev);
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 4134759..4d640de 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -31,15 +31,6 @@
 #include "atom-bits.h"
 #include "radeon_asic.h"
 
-extern void
-radeon_add_atom_encoder(struct drm_device *dev, uint32_t encoder_enum,
-			uint32_t supported_device, u16 caps);
-
-/* from radeon_legacy_encoder.c */
-extern void
-radeon_add_legacy_encoder(struct drm_device *dev, uint32_t encoder_enum,
-			  uint32_t supported_device);
-
 union atom_supported_devices {
 	struct _ATOM_SUPPORTED_DEVICES_INFO info;
 	struct _ATOM_SUPPORTED_DEVICES_INFO_2 info_2;
diff --git a/drivers/gpu/drm/radeon/radeon_audio.c b/drivers/gpu/drm/radeon/radeon_audio.c
index b214663..0303f07 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -31,77 +31,14 @@
 
 void r600_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin,
 		u8 enable_mask);
-void dce4_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin,
-		u8 enable_mask);
 void dce6_audio_enable(struct radeon_device *rdev, struct r600_audio_pin *pin,
 		u8 enable_mask);
-u32 dce6_endpoint_rreg(struct radeon_device *rdev, u32 offset, u32 reg);
-void dce6_endpoint_wreg(struct radeon_device *rdev,
-		u32 offset, u32 reg, u32 v);
-void dce3_2_afmt_write_sad_regs(struct drm_encoder *encoder,
-		struct cea_sad *sads, int sad_count);
-void evergreen_hdmi_write_sad_regs(struct drm_encoder *encoder,
-		struct cea_sad *sads, int sad_count);
-void dce6_afmt_write_sad_regs(struct drm_encoder *encoder,
-		struct cea_sad *sads, int sad_count);
-void dce3_2_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
-		u8 *sadb, int sad_count);
-void dce3_2_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
-		u8 *sadb, int sad_count);
-void dce4_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
-		u8 *sadb, int sad_count);
-void dce4_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
-		u8 *sadb, int sad_count);
-void dce6_afmt_hdmi_write_speaker_allocation(struct drm_encoder *encoder,
-		u8 *sadb, int sad_count);
-void dce6_afmt_dp_write_speaker_allocation(struct drm_encoder *encoder,
-		u8 *sadb, int sad_count);
-void dce4_afmt_write_latency_fields(struct drm_encoder *encoder,
-		struct drm_connector *connector, struct drm_display_mode *mode);
-void dce6_afmt_write_latency_fields(struct drm_encoder *encoder,
-		struct drm_connector *connector, struct drm_display_mode *mode);
 struct r600_audio_pin* r600_audio_get_pin(struct radeon_device *rdev);
 struct r600_audio_pin* dce6_audio_get_pin(struct radeon_device *rdev);
-void dce6_afmt_select_pin(struct drm_encoder *encoder);
-void r600_hdmi_audio_set_dto(struct radeon_device *rdev,
-	struct radeon_crtc *crtc, unsigned int clock);
-void dce3_2_audio_set_dto(struct radeon_device *rdev,
-	struct radeon_crtc *crtc, unsigned int clock);
-void dce4_hdmi_audio_set_dto(struct radeon_device *rdev,
-	struct radeon_crtc *crtc, unsigned int clock);
-void dce4_dp_audio_set_dto(struct radeon_device *rdev,
-	struct radeon_crtc *crtc, unsigned int clock);
-void dce6_hdmi_audio_set_dto(struct radeon_device *rdev,
-	struct radeon_crtc *crtc, unsigned int clock);
-void dce6_dp_audio_set_dto(struct radeon_device *rdev,
-	struct radeon_crtc *crtc, unsigned int clock);
-void r600_set_avi_packet(struct radeon_device *rdev, u32 offset,
-	unsigned char *buffer, size_t size);
-void evergreen_set_avi_packet(struct radeon_device *rdev, u32 offset,
-	unsigned char *buffer, size_t size);
-void r600_hdmi_update_acr(struct drm_encoder *encoder, long offset,
-	const struct radeon_hdmi_acr *acr);
-void dce3_2_hdmi_update_acr(struct drm_encoder *encoder, long offset,
-	const struct radeon_hdmi_acr *acr);
-void evergreen_hdmi_update_acr(struct drm_encoder *encoder, long offset,
-	const struct radeon_hdmi_acr *acr);
-void r600_set_vbi_packet(struct drm_encoder *encoder, u32 offset);
-void dce4_set_vbi_packet(struct drm_encoder *encoder, u32 offset);
-void dce4_hdmi_set_color_depth(struct drm_encoder *encoder,
-	u32 offset, int bpc);
-void r600_set_audio_packet(struct drm_encoder *encoder, u32 offset);
-void dce3_2_set_audio_packet(struct drm_encoder *encoder, u32 offset);
-void dce4_set_audio_packet(struct drm_encoder *encoder, u32 offset);
-void r600_set_mute(struct drm_encoder *encoder, u32 offset, bool mute);
-void dce3_2_set_mute(struct drm_encoder *encoder, u32 offset, bool mute);
-void dce4_set_mute(struct drm_encoder *encoder, u32 offset, bool mute);
 static void radeon_audio_hdmi_mode_set(struct drm_encoder *encoder,
 	struct drm_display_mode *mode);
 static void radeon_audio_dp_mode_set(struct drm_encoder *encoder,
 	struct drm_display_mode *mode);
-void r600_hdmi_enable(struct drm_encoder *encoder, bool enable);
-void evergreen_hdmi_enable(struct drm_encoder *encoder, bool enable);
-void evergreen_dp_enable(struct drm_encoder *encoder, bool enable);
 
 static const u32 pin_offsets[7] =
 {
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index c6ee802..675153e 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -29,14 +29,6 @@
 #include "radeon.h"
 #include "atom.h"
 
-extern void
-radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder,
-			     struct drm_connector *drm_connector);
-extern void
-radeon_atom_backlight_init(struct radeon_encoder *radeon_encoder,
-			   struct drm_connector *drm_connector);
-
-
 static uint32_t radeon_encoder_clones(struct drm_encoder *encoder)
 {
 	struct drm_device *dev = encoder->dev;
diff --git a/drivers/gpu/drm/radeon/radeon_i2c.c b/drivers/gpu/drm/radeon/radeon_i2c.c
index 021aa00..3941588 100644
--- a/drivers/gpu/drm/radeon/radeon_i2c.c
+++ b/drivers/gpu/drm/radeon/radeon_i2c.c
@@ -31,10 +31,6 @@
 #include "radeon.h"
 #include "atom.h"
 
-extern int radeon_atom_hw_i2c_xfer(struct i2c_adapter *i2c_adap,
-				   struct i2c_msg *msgs, int num);
-extern u32 radeon_atom_hw_i2c_func(struct i2c_adapter *adap);
-
 /**
  * radeon_ddc_probe
  *
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 4388dde..f089485 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -830,7 +830,7 @@ u32 radeon_get_vblank_counter_kms(struct drm_device *dev, unsigned int pipe)
  * Enable the interrupt on the requested crtc (all asics).
  * Returns 0 on success, -EINVAL on failure.
  */
-int radeon_enable_vblank_kms(struct drm_device *dev, int crtc)
+int radeon_enable_vblank_kms(struct drm_device *dev, unsigned int crtc)
 {
 	struct radeon_device *rdev = dev->dev_private;
 	unsigned long irqflags;
@@ -856,7 +856,7 @@ int radeon_enable_vblank_kms(struct drm_device *dev, int crtc)
  *
  * Disable the interrupt on the requested crtc (all asics).
  */
-void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
+void radeon_disable_vblank_kms(struct drm_device *dev, unsigned int crtc)
 {
 	struct radeon_device *rdev = dev->dev_private;
 	unsigned long irqflags;
@@ -885,7 +885,7 @@ void radeon_disable_vblank_kms(struct drm_device *dev, int crtc)
  * scanout position.  (all asics).
  * Returns postive status flags on success, negative error on failure.
  */
-int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc,
+int radeon_get_vblank_timestamp_kms(struct drm_device *dev, unsigned int crtc,
 				    int *max_error,
 				    struct timeval *vblank_time,
 				    unsigned flags)
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index be30861..841aa89 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -38,8 +38,6 @@
 #include "radeon_trace.h"
 
 
-int radeon_ttm_init(struct radeon_device *rdev);
-void radeon_ttm_fini(struct radeon_device *rdev);
 static void radeon_bo_clear_surface_reg(struct radeon_bo *bo);
 
 /*
diff --git a/drivers/gpu/drm/radeon/rv730_dpm.c b/drivers/gpu/drm/radeon/rv730_dpm.c
index d37ba2c..ff203ed 100644
--- a/drivers/gpu/drm/radeon/rv730_dpm.c
+++ b/drivers/gpu/drm/radeon/rv730_dpm.c
@@ -34,9 +34,6 @@
 #define MC_CG_ARB_FREQ_F2           0x0c
 #define MC_CG_ARB_FREQ_F3           0x0d
 
-struct rv7xx_ps *rv770_get_ps(struct radeon_ps *rps);
-struct rv7xx_power_info *rv770_get_pi(struct radeon_device *rdev);
-
 int rv730_populate_sclk_value(struct radeon_device *rdev,
 			      u32 engine_clock,
 			      RV770_SMC_SCLK_VALUE *sclk)
diff --git a/drivers/gpu/drm/radeon/rv740_dpm.c b/drivers/gpu/drm/radeon/rv740_dpm.c
index 4b85082..2b390e1 100644
--- a/drivers/gpu/drm/radeon/rv740_dpm.c
+++ b/drivers/gpu/drm/radeon/rv740_dpm.c
@@ -29,8 +29,6 @@
 #include "rv770_dpm.h"
 #include "atom.h"
 
-struct rv7xx_power_info *rv770_get_pi(struct radeon_device *rdev);
-
 u32 rv740_get_decoded_reference_divider(u32 encoded_ref)
 {
 	u32 ref = 0;
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 7ee9aaf..e5ceeb4 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -119,16 +119,6 @@ MODULE_FIRMWARE("radeon/hainan_k_smc.bin");
 static u32 si_get_cu_active_bitmap(struct radeon_device *rdev, u32 se, u32 sh);
 static void si_pcie_gen3_enable(struct radeon_device *rdev);
 static void si_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 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);
diff --git a/drivers/gpu/drm/radeon/si_dma.c b/drivers/gpu/drm/radeon/si_dma.c
index 8320792..afe19f8d 100644
--- a/drivers/gpu/drm/radeon/si_dma.c
+++ b/drivers/gpu/drm/radeon/si_dma.c
@@ -27,8 +27,6 @@
 #include "radeon_trace.h"
 #include "sid.h"
 
-u32 si_gpu_check_soft_reset(struct radeon_device *rdev);
-
 /**
  * si_dma_is_lockup - Check if the DMA engine is locked up
  *
diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c
index e6abc09..0a5aff5 100644
--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -1734,14 +1734,6 @@ static const struct si_powertune_data powertune_data_hainan =
 	true
 };
 
-struct rv7xx_power_info *rv770_get_pi(struct radeon_device *rdev);
-struct evergreen_power_info *evergreen_get_pi(struct radeon_device *rdev);
-struct ni_power_info *ni_get_pi(struct radeon_device *rdev);
-struct ni_ps *ni_get_ps(struct radeon_ps *rps);
-
-extern int si_mc_load_microcode(struct radeon_device *rdev);
-extern void vce_v1_0_enable_mgcg(struct radeon_device *rdev, bool enable);
-
 static int si_populate_voltage_value(struct radeon_device *rdev,
 				     const struct atom_voltage_table *table,
 				     u16 value, SISLANDS_SMC_VOLTAGE_VALUE *voltage);
diff --git a/drivers/gpu/drm/radeon/sumo_smc.c b/drivers/gpu/drm/radeon/sumo_smc.c
index fb081d2..05ed103 100644
--- a/drivers/gpu/drm/radeon/sumo_smc.c
+++ b/drivers/gpu/drm/radeon/sumo_smc.c
@@ -31,8 +31,6 @@
 #define SUMO_SMU_SERVICE_ROUTINE_ALTVDDNB_NOTIFY  27
 #define SUMO_SMU_SERVICE_ROUTINE_GFX_SRV_ID_20  20
 
-struct sumo_power_info *sumo_get_pi(struct radeon_device *rdev);
-
 static void sumo_send_msg_to_smu(struct radeon_device *rdev, u32 id)
 {
 	u32 gfx_int_req;
diff --git a/drivers/gpu/drm/radeon/trinity_dpm.c b/drivers/gpu/drm/radeon/trinity_dpm.c
index 6730367..2d423b5 100644
--- a/drivers/gpu/drm/radeon/trinity_dpm.c
+++ b/drivers/gpu/drm/radeon/trinity_dpm.c
@@ -336,7 +336,6 @@ static const u32 trinity_override_mgpg_sequences[] =
 	0x00000204, 0x00000000,
 };
 
-extern void vce_v1_0_enable_mgcg(struct radeon_device *rdev, bool enable);
 static void trinity_program_clk_gating_hw_sequence(struct radeon_device *rdev,
 						   const u32 *seq, u32 count);
 static void trinity_override_dynamic_mg_powergating(struct radeon_device *rdev);
