drm/i915: Only include i915_reg.h from .c files

Several of our i915 header files, have been including i915_reg.h.  This
means that any change to i915_reg.h will trigger a full rebuild of
pretty much every file of the driver, even those that don't have any
kind of register access.  Let's delete the i915_reg.h include from all
headers and add an explicit include from the .c files that truly
need the register definitions; those that need a definition of
i915_reg_t for a function definition can get it from i915_reg_defs.h
instead.

We also remove two non-register #define's (VLV_DISPLAY_BASE and
GEN12_SFC_DONE_MAX) into i915_reg_defs.h to allow us to drop the
i915_reg.h include from a couple of headers.

There's probably a lot more header dependency optimization possible, but
the changes here roughly cut the number of files compiled after 'touch
i915_reg.h' in half --- a good first step.

Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220127234334.4016964-7-matthew.d.roper@intel.com

drivers/gpu/drm/i915/display/g4x_hdmi.h

@@ -8,7 +8,7 @@
 
 #include <linux/types.h>
 
-#include "i915_reg.h"
+#include "i915_reg_defs.h"
 
 enum port;
 struct drm_i915_private;

drivers/gpu/drm/i915/display/intel_atomic.c

@@ -35,6 +35,7 @@
 #include <drm/drm_plane_helper.h>
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "intel_atomic.h"
 #include "intel_cdclk.h"
 #include "intel_display_types.h"

drivers/gpu/drm/i915/display/intel_bios.c

@@ -32,6 +32,7 @@
 #include "display/intel_gmbus.h"
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 
 #define _INTEL_BIOS_PRIVATE
 #include "intel_vbt_defs.h"

drivers/gpu/drm/i915/display/intel_bw.c

@@ -5,6 +5,7 @@
 
 #include <drm/drm_atomic_state_helper.h>
 
+#include "i915_reg.h"
 #include "intel_atomic.h"
 #include "intel_bw.h"
 #include "intel_cdclk.h"

drivers/gpu/drm/i915/display/intel_crt.h

@@ -6,7 +6,7 @@
 #ifndef __INTEL_CRT_H__
 #define __INTEL_CRT_H__
 
-#include "i915_reg.h"
+#include "i915_reg_defs.h"
 
 enum pipe;
 struct drm_encoder;

drivers/gpu/drm/i915/display/intel_ddi.h

@@ -6,7 +6,7 @@
 #ifndef __INTEL_DDI_H__
 #define __INTEL_DDI_H__
 
-#include "i915_reg.h"
+#include "i915_reg_defs.h"
 
 struct drm_connector_state;
 struct drm_i915_private;

drivers/gpu/drm/i915/display/intel_de.h

@@ -7,7 +7,6 @@
 #define __INTEL_DE_H__
 
 #include "i915_drv.h"
-#include "i915_reg.h"
 #include "i915_trace.h"
 #include "intel_uncore.h"
 

drivers/gpu/drm/i915/display/intel_display_power.h

@@ -7,7 +7,6 @@
 #define __INTEL_DISPLAY_POWER_H__
 
 #include "intel_runtime_pm.h"
-#include "i915_reg.h"
 
 enum dpio_channel;
 enum dpio_phy;

drivers/gpu/drm/i915/display/intel_dmc.h

@@ -6,7 +6,7 @@
 #ifndef __INTEL_DMC_H__
 #define __INTEL_DMC_H__
 
-#include "i915_reg.h"
+#include "i915_reg_defs.h"
 #include "intel_wakeref.h"
 #include <linux/workqueue.h>
 

drivers/gpu/drm/i915/display/intel_dp.h

@@ -8,8 +8,6 @@
 
 #include <linux/types.h>
 
-#include "i915_reg.h"
-
 enum intel_output_format;
 enum pipe;
 enum port;

drivers/gpu/drm/i915/display/intel_dsb.h

@@ -8,7 +8,7 @@
 
 #include <linux/types.h>
 
-#include "i915_reg.h"
+#include "i915_reg_defs.h"
 
 struct intel_crtc_state;
 struct i915_vma;

drivers/gpu/drm/i915/display/intel_dsi_vbt.c

@@ -39,6 +39,7 @@
 #include <video/mipi_display.h>
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "intel_display_types.h"
 #include "intel_dsi.h"
 #include "intel_dsi_vbt.h"

drivers/gpu/drm/i915/display/intel_dvo_dev.h

@@ -27,7 +27,7 @@
 
 #include <drm/drm_crtc.h>
 
-#include "i915_reg.h"
+#include "i915_reg_defs.h"
 
 struct intel_dvo_device {
 	const char *name;

drivers/gpu/drm/i915/display/intel_hdmi.h

@@ -9,8 +9,6 @@
 #include <linux/hdmi.h>
 #include <linux/types.h>
 
-#include "i915_reg.h"
-
 struct drm_connector;
 struct drm_encoder;
 struct drm_i915_private;

drivers/gpu/drm/i915/display/intel_lvds.h

@@ -8,7 +8,7 @@
 
 #include <linux/types.h>
 
-#include "i915_reg.h"
+#include "i915_reg_defs.h"
 
 enum pipe;
 struct drm_i915_private;

drivers/gpu/drm/i915/display/intel_sdvo.h

@@ -8,7 +8,7 @@
 
 #include <linux/types.h>
 
-#include "i915_reg.h"
+#include "i915_reg_defs.h"
 
 struct drm_i915_private;
 enum pipe;

drivers/gpu/drm/i915/display/intel_tc.c

@@ -4,6 +4,7 @@
  */
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "intel_display.h"
 #include "intel_display_types.h"
 #include "intel_dp_mst.h"

drivers/gpu/drm/i915/gem/i915_gem_stolen.c

@@ -14,6 +14,7 @@
 #include "gem/i915_gem_region.h"
 #include "i915_drv.h"
 #include "i915_gem_stolen.h"
+#include "i915_reg.h"
 #include "i915_vgpu.h"
 
 /*

drivers/gpu/drm/i915/gem/i915_gem_tiling.c

@@ -13,6 +13,7 @@
 #include "i915_gem_mman.h"
 #include "i915_gem_object.h"
 #include "i915_gem_tiling.h"
+#include "i915_reg.h"
 
 /**
  * DOC: buffer object tiling

drivers/gpu/drm/i915/gt/gen2_engine_cs.c

@@ -5,6 +5,7 @@
 
 #include "gen2_engine_cs.h"
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "intel_engine.h"
 #include "intel_engine_regs.h"
 #include "intel_gpu_commands.h"

drivers/gpu/drm/i915/gt/intel_engine.h

@@ -11,7 +11,6 @@
 #include <linux/seqlock.h>
 
 #include "i915_pmu.h"
-#include "i915_reg.h"
 #include "i915_request.h"
 #include "i915_selftest.h"
 #include "intel_engine_types.h"

drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c

@@ -4,6 +4,7 @@
  */
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "i915_scatterlist.h"
 #include "i915_pvinfo.h"
 #include "i915_vgpu.h"

drivers/gpu/drm/i915/gt/intel_gt_clock_utils.c

@@ -4,6 +4,7 @@
  */
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "intel_gt.h"
 #include "intel_gt_clock_utils.h"
 #include "intel_gt_regs.h"

drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c

@@ -7,6 +7,7 @@
 #include <linux/seq_file.h>
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "intel_gt.h"
 #include "intel_gt_clock_utils.h"
 #include "intel_gt_debugfs.h"

drivers/gpu/drm/i915/gt/intel_llc.c

@@ -7,6 +7,7 @@
 #include <linux/cpufreq.h>
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "intel_gt.h"
 #include "intel_llc.h"
 #include "intel_pcode.h"

drivers/gpu/drm/i915/gt/intel_rc6.c

@@ -6,6 +6,7 @@
 #include <linux/pm_runtime.h>
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "i915_vgpu.h"
 #include "intel_engine_regs.h"
 #include "intel_gt.h"

drivers/gpu/drm/i915/gt/intel_rc6.h

@@ -6,7 +6,7 @@
 #ifndef INTEL_RC6_H
 #define INTEL_RC6_H
 
-#include "i915_reg.h"
+#include "i915_reg_defs.h"
 
 struct intel_engine_cs;
 struct intel_rc6;

drivers/gpu/drm/i915/gt/intel_region_lmem.c

@@ -4,6 +4,7 @@
  */
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "intel_memory_region.h"
 #include "intel_region_lmem.h"
 #include "intel_region_ttm.h"

drivers/gpu/drm/i915/gt/intel_workarounds_types.h

@@ -8,7 +8,7 @@
 
 #include <linux/types.h>
 
-#include "i915_reg.h"
+#include "i915_reg_defs.h"
 
 struct i915_wa {
 	i915_reg_t	reg;

drivers/gpu/drm/i915/gt/uc/abi/guc_actions_slpc_abi.h

@@ -7,7 +7,6 @@
 #define _GUC_ACTIONS_SLPC_ABI_H_
 
 #include <linux/types.h>
-#include "i915_reg.h"
 
 /**
  * DOC: SLPC SHARED DATA STRUCTURE

drivers/gpu/drm/i915/gt/uc/intel_guc_reg.h

@@ -9,7 +9,7 @@
 #include <linux/compiler.h>
 #include <linux/types.h>
 
-#include "i915_reg.h"
+#include "i915_reg_defs.h"
 
 /* Definitions of GuC H/W registers, bits, etc */
 

drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c

@@ -4,6 +4,7 @@
  */
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "intel_guc_slpc.h"
 #include "gt/intel_gt.h"
 #include "gt/intel_gt_regs.h"

drivers/gpu/drm/i915/gt/uc/intel_huc.h

@@ -6,7 +6,7 @@
 #ifndef _INTEL_HUC_H_
 #define _INTEL_HUC_H_
 
-#include "i915_reg.h"
+#include "i915_reg_defs.h"
 #include "intel_uc_fw.h"
 #include "intel_huc_fw.h"
 

drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c

@@ -11,6 +11,7 @@
 #include "intel_uc_fw.h"
 #include "intel_uc_fw_abi.h"
 #include "i915_drv.h"
+#include "i915_reg.h"
 
 static inline struct intel_gt *
 ____uc_fw_to_gt(struct intel_uc_fw *uc_fw, enum intel_uc_fw_type type)

drivers/gpu/drm/i915/gvt/aperture_gm.c

@@ -35,6 +35,7 @@
  */
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "gt/intel_ggtt_fencing.h"
 #include "gvt.h"
 

drivers/gpu/drm/i915/gvt/display.c

@@ -33,6 +33,7 @@
  */
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "gvt.h"
 
 static int get_edp_pipe(struct intel_vgpu *vgpu)

drivers/gpu/drm/i915/gvt/dmabuf.c

@@ -32,6 +32,7 @@
 #include <linux/vfio.h>
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "gvt.h"
 
 #define GEN8_DECODE_PTE(pte) (pte & GENMASK_ULL(63, 12))

drivers/gpu/drm/i915/gvt/edid.c

@@ -33,6 +33,7 @@
  */
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "gvt.h"
 
 #define GMBUS1_TOTAL_BYTES_SHIFT 16

drivers/gpu/drm/i915/gvt/fb_decoder.c

@@ -37,6 +37,7 @@
 #include "i915_drv.h"
 #include "gvt.h"
 #include "i915_pvinfo.h"
+#include "i915_reg.h"
 
 #define PRIMARY_FORMAT_NUM	16
 struct pixel_format {

drivers/gpu/drm/i915/gvt/handlers.c

@@ -37,6 +37,7 @@
  */
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "gvt.h"
 #include "i915_pvinfo.h"
 #include "display/intel_display_types.h"

drivers/gpu/drm/i915/gvt/interrupt.c

@@ -30,6 +30,7 @@
  */
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "gvt.h"
 #include "trace.h"
 

drivers/gpu/drm/i915/gvt/interrupt.h

@@ -35,7 +35,7 @@
 #include <linux/hrtimer.h>
 #include <linux/kernel.h>
 
-#include "i915_reg.h"
+#include "i915_reg_defs.h"
 
 enum intel_gvt_event_type {
 	RCS_MI_USER_INTERRUPT = 0,

drivers/gpu/drm/i915/gvt/mmio.c

@@ -34,6 +34,7 @@
  */
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "gvt.h"
 
 #include "gt/intel_gt_regs.h"

drivers/gpu/drm/i915/gvt/mmio_context.h

@@ -41,7 +41,6 @@
 #include "gt/intel_engine_regs.h"
 #include "gt/intel_engine_types.h"
 #include "gt/intel_lrc_reg.h"
-#include "i915_reg.h"
 
 struct i915_request;
 struct intel_context;

drivers/gpu/drm/i915/i915_cmd_parser.c

@@ -33,6 +33,7 @@
 #include "i915_cmd_parser.h"
 #include "i915_drv.h"
 #include "i915_memcpy.h"
+#include "i915_reg.h"
 
 /**
  * DOC: batch buffer command parser

drivers/gpu/drm/i915/i915_drv.h

@@ -61,7 +61,6 @@
 #include <drm/ttm/ttm_device.h>
 
 #include "i915_params.h"
-#include "i915_reg.h"
 #include "i915_utils.h"
 
 #include "display/intel_bios.h"

drivers/gpu/drm/i915/i915_pci.c

@@ -28,6 +28,7 @@
 #include "i915_driver.h"
 #include "i915_drv.h"
 #include "i915_pci.h"
+#include "i915_reg.h"
 
 #define PLATFORM(x) .platform = (x)
 #define GEN(x) \

drivers/gpu/drm/i915/i915_perf_types.h

@@ -18,7 +18,7 @@
 #include <uapi/drm/i915_drm.h>
 
 #include "gt/intel_sseu.h"
-#include "i915_reg.h"
+#include "i915_reg_defs.h"
 #include "intel_wakeref.h"
 
 struct drm_i915_private;

drivers/gpu/drm/i915/i915_reg.h

@@ -115,7 +115,6 @@
  *  #define GEN8_BAR                    _MMIO(0xb888)
  */
 
-#define VLV_DISPLAY_BASE		0x180000
 #define VLV_MIPI_BASE			VLV_DISPLAY_BASE
 #define BXT_MIPI_BASE			0x60000
 
@@ -189,8 +188,6 @@
 #define _MASKED_BIT_ENABLE(a)	({ typeof(a) _a = (a); _MASKED_FIELD(_a, _a); })
 #define _MASKED_BIT_DISABLE(a)	(_MASKED_FIELD((a), 0))
 
-#define GEN12_SFC_DONE_MAX		4
-
 #define GU_CNTL				_MMIO(0x101010)
 #define   LMEM_INIT			REG_BIT(7)
 

drivers/gpu/drm/i915/i915_reg_defs.h

@@ -94,4 +94,8 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
 	return !i915_mmio_reg_equal(reg, INVALID_MMIO_REG);
 }
 
+#define VLV_DISPLAY_BASE		0x180000
+
+#define GEN12_SFC_DONE_MAX		4
+
 #endif /* __I915_REG_DEFS__ */

drivers/gpu/drm/i915/intel_dram.c

@@ -4,6 +4,7 @@
  */
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "intel_dram.h"
 #include "intel_pcode.h"
 

drivers/gpu/drm/i915/intel_pcode.c

@@ -4,6 +4,7 @@
  */
 
 #include "i915_drv.h"
+#include "i915_reg.h"
 #include "intel_pcode.h"
 
 static int gen6_check_mailbox_status(u32 mbox)

drivers/gpu/drm/i915/intel_pm.h

@@ -12,7 +12,6 @@
 #include "display/intel_global_state.h"
 
 #include "i915_drv.h"
-#include "i915_reg.h"
 
 struct drm_device;
 struct drm_i915_private;

drivers/gpu/drm/i915/intel_sbi.c

@@ -7,6 +7,7 @@
 
 #include "i915_drv.h"
 #include "intel_sbi.h"
+#include "i915_reg.h"
 
 /* SBI access */
 static int intel_sbi_rw(struct drm_i915_private *i915, u16 reg,

drivers/gpu/drm/i915/intel_uncore.h

@@ -30,7 +30,7 @@
 #include <linux/hrtimer.h>
 #include <linux/io-64-nonatomic-lo-hi.h>
 
-#include "i915_reg.h"
+#include "i915_reg_defs.h"
 
 struct drm_i915_private;
 struct intel_runtime_pm;

drivers/gpu/drm/i915/vlv_sideband.c

@@ -5,6 +5,7 @@
 
 #include "i915_drv.h"
 #include "i915_iosf_mbi.h"
+#include "i915_reg.h"
 #include "vlv_sideband.h"
 
 /*