drm/i915: migrate skl planes code new file (v5)

Rework the plane init calls to do the gen test one level higher.

Rework some of the plane helpers so they can live in new file,
there is still some scope to clean up the plane/fb interactions
later.

v2: drop atomic code back, rename file to Ville suggestions,
add header file.
v3: move scaler bits back
v4: drop wrong new includes (Ville)
v5: integrate the ccs gen12 changes
v6: fix unrelated code movement (Ville)

Signed-off-by: Dave Airlie <airlied@redhat.com>
[Jani: fixed up sparse warnings.]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4e88a5c6b9ab3b93cc2b6c7d78c26ae86f6abbd0.1612536383.git.jani.nikula@intel.com

drivers/gpu/drm/i915/Makefile

@@ -223,7 +223,8 @@ i915-y += \
 	display/intel_sprite.o \
 	display/intel_tc.o \
 	display/intel_vga.o \
-	display/i9xx_plane.o
+	display/i9xx_plane.o \
+	display/skl_universal_plane.o
 i915-$(CONFIG_ACPI) += \
 	display/intel_acpi.o \
 	display/intel_opregion.o

drivers/gpu/drm/i915/display/i9xx_plane.c

@@ -743,10 +743,6 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
 	int num_formats;
 	int ret, zpos;
 
-	if (INTEL_GEN(dev_priv) >= 9)
-		return skl_universal_plane_create(dev_priv, pipe,
-						  PLANE_PRIMARY);
-
 	plane = intel_plane_alloc();
 	if (IS_ERR(plane))
 		return plane;

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

@@ -35,6 +35,7 @@
 #include "intel_dsi.h"
 #include "intel_panel.h"
 #include "intel_vdsc.h"
+#include "skl_universal_plane.h"
 
 static int header_credits_available(struct drm_i915_private *dev_priv,
 				    enum transcoder dsi_trans)

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

@@ -20,6 +20,7 @@
 #include "intel_pipe_crc.h"
 #include "intel_sprite.h"
 #include "i9xx_plane.h"
+#include "skl_universal_plane.h"
 
 static void assert_vblank_disabled(struct drm_crtc *crtc)
 {
@@ -243,7 +244,11 @@ int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe)
 	crtc->pipe = pipe;
 	crtc->num_scalers = RUNTIME_INFO(dev_priv)->num_scalers[pipe];
 
-	primary = intel_primary_plane_create(dev_priv, pipe);
+	if (INTEL_GEN(dev_priv) >= 9)
+		primary = skl_universal_plane_create(dev_priv, pipe,
+						     PLANE_PRIMARY);
+	else
+		primary = intel_primary_plane_create(dev_priv, pipe);
 	if (IS_ERR(primary)) {
 		ret = PTR_ERR(primary);
 		goto fail;
@@ -253,7 +258,11 @@ int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe)
 	for_each_sprite(dev_priv, pipe, sprite) {
 		struct intel_plane *plane;
 
-		plane = intel_sprite_plane_create(dev_priv, pipe, sprite);
+		if (INTEL_GEN(dev_priv) >= 9)
+			plane = skl_universal_plane_create(dev_priv, pipe,
+							   PLANE_SPRITE0 + sprite);
+		else
+			plane = intel_sprite_plane_create(dev_priv, pipe, sprite);
 		if (IS_ERR(plane)) {
 			ret = PTR_ERR(plane);
 			goto fail;

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

@@ -54,6 +54,7 @@
 #include "intel_tc.h"
 #include "intel_vdsc.h"
 #include "intel_vrr.h"
+#include "skl_universal_plane.h"
 
 static const u8 index_to_dp_signal_levels[] = {
 	[0] = DP_TRAIN_VOLTAGE_SWING_LEVEL_0 | DP_TRAIN_PRE_EMPH_LEVEL_0,

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

@@ -52,6 +52,7 @@ struct intel_crtc_state;
 struct intel_digital_port;
 struct intel_dp;
 struct intel_encoder;
+struct intel_initial_plane_config;
 struct intel_load_detect_pipe;
 struct intel_plane;
 struct intel_plane_state;
@@ -517,7 +518,6 @@ void intel_link_compute_m_n(u16 bpp, int nlanes,
 			    struct intel_link_m_n *m_n,
 			    bool constant_n, bool fec_enable);
 bool is_ccs_modifier(u64 modifier);
-int intel_main_to_aux_plane(const struct drm_framebuffer *fb, int main_plane);
 void lpt_disable_clkout_dp(struct drm_i915_private *dev_priv);
 u32 intel_plane_fb_max_stride(struct drm_i915_private *dev_priv,
 			      u32 pixel_format, u64 modifier);
@@ -629,18 +629,7 @@ u32 skl_scaler_get_filter_select(enum drm_scaling_filter filter, int set);
 void skl_scaler_setup_filter(struct drm_i915_private *dev_priv, enum pipe pipe,
 			     int id, int set, enum drm_scaling_filter filter);
 void ilk_pfit_disable(const struct intel_crtc_state *old_crtc_state);
-u32 glk_plane_color_ctl(const struct intel_crtc_state *crtc_state,
-			const struct intel_plane_state *plane_state);
-u32 glk_plane_color_ctl_crtc(const struct intel_crtc_state *crtc_state);
-u32 skl_plane_ctl(const struct intel_crtc_state *crtc_state,
-		  const struct intel_plane_state *plane_state);
-u32 skl_plane_ctl_crtc(const struct intel_crtc_state *crtc_state);
-u32 skl_plane_stride(const struct intel_plane_state *plane_state,
-		     int plane);
-int skl_check_plane_surface(struct intel_plane_state *plane_state);
-int skl_calc_main_surface_offset(const struct intel_plane_state *plane_state,
-				 int *x, int *y, u32 *offset);
-int skl_format_to_fourcc(int format, bool rgb_order, bool alpha);
+
 int bdw_get_pipemisc_bpp(struct intel_crtc *crtc);
 unsigned int intel_plane_fence_y_offset(const struct intel_plane_state *plane_state);
 
@@ -663,6 +652,18 @@ struct intel_encoder *
 intel_get_crtc_new_encoder(const struct intel_atomic_state *state,
 			   const struct intel_crtc_state *crtc_state);
 
+unsigned int intel_surf_alignment(const struct drm_framebuffer *fb,
+				  int color_plane);
+void intel_fb_plane_get_subsampling(int *hsub, int *vsub,
+				    const struct drm_framebuffer *fb,
+				    int color_plane);
+u32 intel_plane_adjust_aligned_offset(int *x, int *y,
+				      const struct intel_plane_state *state,
+				      int color_plane,
+				      u32 old_offset, u32 new_offset);
+unsigned int intel_tile_width_bytes(const struct drm_framebuffer *fb, int color_plane);
+unsigned int intel_tile_height(const struct drm_framebuffer *fb, int color_plane);
+
 /* modesetting */
 void intel_modeset_init_hw(struct drm_i915_private *i915);
 int intel_modeset_init_noirq(struct drm_i915_private *i915);

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

@@ -37,6 +37,7 @@
 #include <drm/drm_dp_mst_helper.h>
 #include <drm/drm_encoder.h>
 #include <drm/drm_fb_helper.h>
+#include <drm/drm_fourcc.h>
 #include <drm/drm_probe_helper.h>
 #include <drm/drm_rect.h>
 #include <drm/drm_vblank.h>
@@ -1945,4 +1946,30 @@ static inline u32 intel_fdi_link_freq(struct drm_i915_private *dev_priv,
 		return dev_priv->fdi_pll_freq;
 }
 
+static inline bool is_ccs_plane(const struct drm_framebuffer *fb, int plane)
+{
+	if (!is_ccs_modifier(fb->modifier))
+		return false;
+
+	return plane >= fb->format->num_planes / 2;
+}
+
+static inline bool is_gen12_ccs_modifier(u64 modifier)
+{
+	return modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS ||
+	       modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC ||
+	       modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS;
+}
+
+static inline bool is_gen12_ccs_plane(const struct drm_framebuffer *fb, int plane)
+{
+	return is_gen12_ccs_modifier(fb->modifier) && is_ccs_plane(fb, plane);
+}
+
+static inline bool is_gen12_ccs_cc_plane(const struct drm_framebuffer *fb, int plane)
+{
+	return fb->modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC &&
+	       plane == 2;
+}
+
 #endif /*  __INTEL_DISPLAY_TYPES_H__ */

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

@@ -32,6 +32,7 @@
 #include "intel_hdmi.h"
 #include "intel_psr.h"
 #include "intel_sprite.h"
+#include "skl_universal_plane.h"
 
 /**
  * DOC: Panel Self Refresh (PSR/SRD)

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

@@ -38,9 +38,6 @@ void intel_pipe_update_end(struct intel_crtc_state *new_crtc_state);
 int intel_plane_check_stride(const struct intel_plane_state *plane_state);
 int intel_plane_check_src_coordinates(struct intel_plane_state *plane_state);
 int chv_plane_check_rotation(const struct intel_plane_state *plane_state);
-struct intel_plane *
-skl_universal_plane_create(struct drm_i915_private *dev_priv,
-			   enum pipe pipe, enum plane_id plane_id);
 
 static inline u8 icl_hdr_plane_mask(void)
 {
@@ -59,4 +56,7 @@ int hsw_plane_min_cdclk(const struct intel_crtc_state *crtc_state,
 int vlv_plane_min_cdclk(const struct intel_crtc_state *crtc_state,
 			const struct intel_plane_state *plane_state);
 
+void skl_program_scaler(struct intel_plane *plane,
+			const struct intel_crtc_state *crtc_state,
+			const struct intel_plane_state *plane_state);
 #endif /* __INTEL_SPRITE_H__ */

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

@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2020 Intel Corporation
+ */
+
+#ifndef _SKL_UNIVERSAL_PLANE_H_
+#define _SKL_UNIVERSAL_PLANE_H_
+
+#include <linux/types.h>
+
+struct drm_framebuffer;
+struct drm_i915_private;
+struct intel_crtc;
+struct intel_initial_plane_config;
+struct intel_plane_state;
+
+enum pipe;
+enum plane_id;
+
+struct intel_plane *
+skl_universal_plane_create(struct drm_i915_private *dev_priv,
+			   enum pipe pipe, enum plane_id plane_id);
+
+void skl_get_initial_plane_config(struct intel_crtc *crtc,
+				  struct intel_initial_plane_config *plane_config);
+
+int skl_format_to_fourcc(int format, bool rgb_order, bool alpha);
+
+int skl_ccs_to_main_plane(const struct drm_framebuffer *fb, int ccs_plane);
+int skl_calc_main_surface_offset(const struct intel_plane_state *plane_state,
+				 int *x, int *y, u32 *offset);
+
+#endif

drivers/gpu/drm/i915/intel_pm.c

@@ -38,6 +38,7 @@
 #include "display/intel_display_types.h"
 #include "display/intel_fbc.h"
 #include "display/intel_sprite.h"
+#include "display/skl_universal_plane.h"
 
 #include "gt/intel_llc.h"