drm/i915/display: add intel_display_limits.h for key enums

Move a handful of key enums to a new file intel_display_limits.h. These
are the enum types, and the MAX/NUM enumerations within them, that are
used in other headers. Otherwise, there's no common theme between them.

Replace intel_display.h include with intel_display_limit.h where
relevant, and add the intel_display.h include directly in the .c files
where needed.

Since intel_display.h is used almost everywhere in display/, include it
from intel_display_types.h to avoid massive changes across the
board. There are very few files that would need intel_display_types.h
but not intel_display.h so this is neglible, and further cleanup between
these headers can be left for the future.

Overall this change drops the direct and indirect dependencies on
intel_display.h from about 300 to about 100 compilation units, because
we can drop the include from i915_drv.h.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230116164644.1752009-1-jani.nikula@intel.com

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

@@ -8,7 +8,7 @@
 
 #include <drm/drm_atomic.h>
 
-#include "intel_display.h"
+#include "intel_display_limits.h"
 #include "intel_display_power.h"
 #include "intel_global_state.h"
 

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

@@ -8,7 +8,7 @@
 
 #include <linux/types.h>
 
-#include "intel_display.h"
+#include "intel_display_limits.h"
 #include "intel_global_state.h"
 
 struct drm_i915_private;

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

@@ -28,6 +28,7 @@
 #include <drm/drm_util.h>
 
 #include "i915_reg_defs.h"
+#include "intel_display_limits.h"
 
 enum drm_scaling_filter;
 struct dpll;
@@ -62,51 +63,9 @@ struct intel_remapped_info;
 struct intel_rotation_info;
 struct pci_dev;
 
-/*
- * Keep the pipe enum values fixed: the code assumes that PIPE_A=0, the
- * rest have consecutive values and match the enum values of transcoders
- * with a 1:1 transcoder -> pipe mapping.
- */
-enum pipe {
-	INVALID_PIPE = -1,
-
-	PIPE_A = 0,
-	PIPE_B,
-	PIPE_C,
-	PIPE_D,
-	_PIPE_EDP,
-
-	I915_MAX_PIPES = _PIPE_EDP
-};
 
 #define pipe_name(p) ((p) + 'A')
 
-enum transcoder {
-	INVALID_TRANSCODER = -1,
-	/*
-	 * The following transcoders have a 1:1 transcoder -> pipe mapping,
-	 * keep their values fixed: the code assumes that TRANSCODER_A=0, the
-	 * rest have consecutive values and match the enum values of the pipes
-	 * they map to.
-	 */
-	TRANSCODER_A = PIPE_A,
-	TRANSCODER_B = PIPE_B,
-	TRANSCODER_C = PIPE_C,
-	TRANSCODER_D = PIPE_D,
-
-	/*
-	 * The following transcoders can map to any pipe, their enum value
-	 * doesn't need to stay fixed.
-	 */
-	TRANSCODER_EDP,
-	TRANSCODER_DSI_0,
-	TRANSCODER_DSI_1,
-	TRANSCODER_DSI_A = TRANSCODER_DSI_0,	/* legacy DSI */
-	TRANSCODER_DSI_C = TRANSCODER_DSI_1,	/* legacy DSI */
-
-	I915_MAX_TRANSCODERS
-};
-
 static inline const char *transcoder_name(enum transcoder transcoder)
 {
 	switch (transcoder) {
@@ -147,29 +106,6 @@ enum i9xx_plane_id {
 #define plane_name(p) ((p) + 'A')
 #define sprite_name(p, s) ((p) * RUNTIME_INFO(dev_priv)->num_sprites[(p)] + (s) + 'A')
 
-/*
- * Per-pipe plane identifier.
- * I915_MAX_PLANES in the enum below is the maximum (across all platforms)
- * number of planes per CRTC.  Not all platforms really have this many planes,
- * which means some arrays of size I915_MAX_PLANES may have unused entries
- * between the topmost sprite plane and the cursor plane.
- *
- * This is expected to be passed to various register macros
- * (eg. PLANE_CTL(), PS_PLANE_SEL(), etc.) so adjust with care.
- */
-enum plane_id {
-	PLANE_PRIMARY,
-	PLANE_SPRITE0,
-	PLANE_SPRITE1,
-	PLANE_SPRITE2,
-	PLANE_SPRITE3,
-	PLANE_SPRITE4,
-	PLANE_SPRITE5,
-	PLANE_CURSOR,
-
-	I915_MAX_PLANES,
-};
-
 #define for_each_plane_id_on_crtc(__crtc, __p) \
 	for ((__p) = PLANE_PRIMARY; (__p) < I915_MAX_PLANES; (__p)++) \
 		for_each_if((__crtc)->plane_ids_mask & BIT(__p))
@@ -182,34 +118,6 @@ enum plane_id {
 	for_each_dbuf_slice((__dev_priv), (__slice)) \
 		for_each_if((__mask) & BIT(__slice))
 
-enum port {
-	PORT_NONE = -1,
-
-	PORT_A = 0,
-	PORT_B,
-	PORT_C,
-	PORT_D,
-	PORT_E,
-	PORT_F,
-	PORT_G,
-	PORT_H,
-	PORT_I,
-
-	/* tgl+ */
-	PORT_TC1 = PORT_D,
-	PORT_TC2,
-	PORT_TC3,
-	PORT_TC4,
-	PORT_TC5,
-	PORT_TC6,
-
-	/* XE_LPD repositions D/E offsets and bitfields */
-	PORT_D_XELPD = PORT_TC5,
-	PORT_E_XELPD,
-
-	I915_MAX_PORTS
-};
-
 #define port_name(p) ((p) + 'A')
 
 /*
@@ -312,27 +220,6 @@ enum phy_fia {
 	FIA3,
 };
 
-enum hpd_pin {
-	HPD_NONE = 0,
-	HPD_TV = HPD_NONE,     /* TV is known to be unreliable */
-	HPD_CRT,
-	HPD_SDVO_B,
-	HPD_SDVO_C,
-	HPD_PORT_A,
-	HPD_PORT_B,
-	HPD_PORT_C,
-	HPD_PORT_D,
-	HPD_PORT_E,
-	HPD_PORT_TC1,
-	HPD_PORT_TC2,
-	HPD_PORT_TC3,
-	HPD_PORT_TC4,
-	HPD_PORT_TC5,
-	HPD_PORT_TC6,
-
-	HPD_NUM_PINS
-};
-
 #define for_each_hpd_pin(__pin) \
 	for ((__pin) = (HPD_NONE + 1); (__pin) < HPD_NUM_PINS; (__pin)++)
 

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

@@ -17,7 +17,7 @@
 #include <drm/drm_modeset_lock.h>
 
 #include "intel_cdclk.h"
-#include "intel_display.h"
+#include "intel_display_limits.h"
 #include "intel_display_power.h"
 #include "intel_dmc.h"
 #include "intel_dpll_mgr.h"

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

+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2022 Intel Corporation
+ */
+
+#ifndef __INTEL_DISPLAY_LIMITS_H__
+#define __INTEL_DISPLAY_LIMITS_H__
+
+/*
+ * Keep the pipe enum values fixed: the code assumes that PIPE_A=0, the
+ * rest have consecutive values and match the enum values of transcoders
+ * with a 1:1 transcoder -> pipe mapping.
+ */
+enum pipe {
+	INVALID_PIPE = -1,
+
+	PIPE_A = 0,
+	PIPE_B,
+	PIPE_C,
+	PIPE_D,
+	_PIPE_EDP,
+
+	I915_MAX_PIPES = _PIPE_EDP
+};
+
+enum transcoder {
+	INVALID_TRANSCODER = -1,
+	/*
+	 * The following transcoders have a 1:1 transcoder -> pipe mapping,
+	 * keep their values fixed: the code assumes that TRANSCODER_A=0, the
+	 * rest have consecutive values and match the enum values of the pipes
+	 * they map to.
+	 */
+	TRANSCODER_A = PIPE_A,
+	TRANSCODER_B = PIPE_B,
+	TRANSCODER_C = PIPE_C,
+	TRANSCODER_D = PIPE_D,
+
+	/*
+	 * The following transcoders can map to any pipe, their enum value
+	 * doesn't need to stay fixed.
+	 */
+	TRANSCODER_EDP,
+	TRANSCODER_DSI_0,
+	TRANSCODER_DSI_1,
+	TRANSCODER_DSI_A = TRANSCODER_DSI_0,	/* legacy DSI */
+	TRANSCODER_DSI_C = TRANSCODER_DSI_1,	/* legacy DSI */
+
+	I915_MAX_TRANSCODERS
+};
+
+/*
+ * Per-pipe plane identifier.
+ * I915_MAX_PLANES in the enum below is the maximum (across all platforms)
+ * number of planes per CRTC.  Not all platforms really have this many planes,
+ * which means some arrays of size I915_MAX_PLANES may have unused entries
+ * between the topmost sprite plane and the cursor plane.
+ *
+ * This is expected to be passed to various register macros
+ * (eg. PLANE_CTL(), PS_PLANE_SEL(), etc.) so adjust with care.
+ */
+enum plane_id {
+	PLANE_PRIMARY,
+	PLANE_SPRITE0,
+	PLANE_SPRITE1,
+	PLANE_SPRITE2,
+	PLANE_SPRITE3,
+	PLANE_SPRITE4,
+	PLANE_SPRITE5,
+	PLANE_CURSOR,
+
+	I915_MAX_PLANES,
+};
+
+enum port {
+	PORT_NONE = -1,
+
+	PORT_A = 0,
+	PORT_B,
+	PORT_C,
+	PORT_D,
+	PORT_E,
+	PORT_F,
+	PORT_G,
+	PORT_H,
+	PORT_I,
+
+	/* tgl+ */
+	PORT_TC1 = PORT_D,
+	PORT_TC2,
+	PORT_TC3,
+	PORT_TC4,
+	PORT_TC5,
+	PORT_TC6,
+
+	/* XE_LPD repositions D/E offsets and bitfields */
+	PORT_D_XELPD = PORT_TC5,
+	PORT_E_XELPD,
+
+	I915_MAX_PORTS
+};
+
+enum hpd_pin {
+	HPD_NONE = 0,
+	HPD_TV = HPD_NONE,     /* TV is known to be unreliable */
+	HPD_CRT,
+	HPD_SDVO_B,
+	HPD_SDVO_C,
+	HPD_PORT_A,
+	HPD_PORT_B,
+	HPD_PORT_C,
+	HPD_PORT_D,
+	HPD_PORT_E,
+	HPD_PORT_TC1,
+	HPD_PORT_TC2,
+	HPD_PORT_TC3,
+	HPD_PORT_TC4,
+	HPD_PORT_TC5,
+	HPD_PORT_TC6,
+
+	HPD_NUM_PINS
+};
+
+#endif /* __INTEL_DISPLAY_LIMITS_H__ */

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

@@ -10,6 +10,7 @@
 
 #include "intel_display_power_map.h"
 #include "intel_display_power_well.h"
+#include "intel_display_types.h"
 
 #define __LIST_INLINE_ELEMS(__elem_type, ...) \
 	((__elem_type[]) { __VA_ARGS__ })

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

@@ -50,6 +50,7 @@
 #include "i915_vma_types.h"
 #include "intel_bios.h"
 #include "intel_display.h"
+#include "intel_display_limits.h"
 #include "intel_display_power.h"
 #include "intel_dpll_mgr.h"
 #include "intel_pm_types.h"

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

@@ -25,7 +25,7 @@
 
 #include "i915_reg_defs.h"
 
-#include "intel_display.h"
+#include "intel_display_limits.h"
 
 enum drm_connector_status;
 struct drm_display_mode;

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

@@ -8,7 +8,7 @@
 
 #include <linux/types.h>
 
-#include "intel_display.h"
+#include "intel_display_limits.h"
 #include "intel_global_state.h"
 #include "intel_pm_types.h"
 

drivers/gpu/drm/i915/gem/i915_gem_create.c

@@ -5,6 +5,7 @@
 
 #include <drm/drm_fourcc.h>
 
+#include "display/intel_display.h"
 #include "gem/i915_gem_ioctls.h"
 #include "gem/i915_gem_lmem.h"
 #include "gem/i915_gem_region.h"

drivers/gpu/drm/i915/gem/i915_gem_domain.c

@@ -4,6 +4,7 @@
  * Copyright © 2014-2016 Intel Corporation
  */
 
+#include "display/intel_display.h"
 #include "display/intel_frontbuffer.h"
 #include "gt/intel_gt.h"
 

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

@@ -12,6 +12,7 @@
 #include <drm/i915_drm.h>
 #include <drm/intel-gtt.h>
 
+#include "display/intel_display.h"
 #include "gem/i915_gem_lmem.h"
 
 #include "intel_ggtt_gmch.h"

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

@@ -5,6 +5,7 @@
 
 #include <linux/highmem.h>
 
+#include "display/intel_display.h"
 #include "i915_drv.h"
 #include "i915_reg.h"
 #include "i915_scatterlist.h"

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

@@ -7,6 +7,7 @@
 
 #include <drm/i915_drm.h>
 
+#include "display/intel_display.h"
 #include "i915_drv.h"
 #include "i915_irq.h"
 #include "intel_breadcrumbs.h"

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

@@ -49,6 +49,7 @@
 #include "i915_pvinfo.h"
 #include "trace.h"
 
+#include "display/intel_display.h"
 #include "gem/i915_gem_context.h"
 #include "gem/i915_gem_pm.h"
 #include "gt/intel_context.h"

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

@@ -36,6 +36,7 @@
 #include "i915_reg.h"
 #include "gvt.h"
 
+#include "display/intel_display.h"
 #include "display/intel_dpio_phy.h"
 
 static int get_edp_pipe(struct intel_vgpu *vgpu)

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

@@ -38,7 +38,7 @@
 
 #include <linux/types.h>
 
-#include "display/intel_display.h"
+#include "display/intel_display_limits.h"
 
 struct intel_vgpu;
 

drivers/gpu/drm/i915/i915_drv.h

@@ -36,7 +36,7 @@
 
 #include <drm/ttm/ttm_device.h>
 
-#include "display/intel_display.h"
+#include "display/intel_display_limits.h"
 #include "display/intel_display_core.h"
 
 #include "gem/i915_gem_context_types.h"

drivers/gpu/drm/i915/i915_pci.c

@@ -26,6 +26,7 @@
 #include <drm/drm_drv.h>
 #include <drm/i915_pciids.h>
 
+#include "display/intel_display.h"
 #include "gt/intel_gt_regs.h"
 #include "gt/intel_sa_media.h"
 

drivers/gpu/drm/i915/i915_vma.c

@@ -26,6 +26,7 @@
 #include <linux/dma-fence-array.h>
 #include <drm/drm_gem.h>
 
+#include "display/intel_display.h"
 #include "display/intel_frontbuffer.h"
 #include "gem/i915_gem_lmem.h"
 #include "gem/i915_gem_tiling.h"

drivers/gpu/drm/i915/intel_device_info.c

@@ -29,6 +29,7 @@
 
 #include "display/intel_cdclk.h"
 #include "display/intel_de.h"
+#include "display/intel_display.h"
 #include "gt/intel_gt_regs.h"
 #include "i915_drv.h"
 #include "i915_reg.h"

drivers/gpu/drm/i915/intel_device_info.h

@@ -29,7 +29,7 @@
 
 #include "intel_step.h"
 
-#include "display/intel_display.h"
+#include "display/intel_display_limits.h"
 
 #include "gt/intel_engine_types.h"
 #include "gt/intel_context_types.h"

drivers/gpu/drm/i915/intel_gvt_mmio_table.c

@@ -5,6 +5,7 @@
 
 #include "display/intel_audio_regs.h"
 #include "display/intel_backlight_regs.h"
+#include "display/intel_display_types.h"
 #include "display/intel_dmc_regs.h"
 #include "display/intel_dpio_phy.h"
 #include "display/vlv_dsi_pll_regs.h"

drivers/gpu/drm/i915/intel_pm.c

@@ -26,6 +26,7 @@
  */
 
 #include "display/intel_de.h"
+#include "display/intel_display.h"
 #include "display/intel_display_trace.h"
 #include "display/skl_watermark.h"
 

drivers/gpu/drm/i915/intel_pm_types.h

@@ -8,7 +8,7 @@
 
 #include <linux/types.h>
 
-#include "display/intel_display.h"
+#include "display/intel_display_limits.h"
 
 enum intel_ddb_partitioning {
 	INTEL_DDB_PART_1_2,

drivers/gpu/drm/i915/vlv_sideband.c

@@ -9,6 +9,7 @@
 #include "vlv_sideband.h"
 
 #include "display/intel_dpio_phy.h"
+#include "display/intel_display_types.h"
 
 /*
  * IOSF sideband, see VLV2_SidebandMsg_HAS.docx and