In intel it's useful to keep track of some state changes with old
crtc state vs new state, for example to disable initial planes or
when a modeset's prevented during fastboot.

Cc: dri-devel at lists.freedesktop.org
Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c |  6 ++++--
 drivers/gpu/drm/drm_atomic_helper.c            |  8 ++++----
 drivers/gpu/drm/drm_plane_helper.c             |  4 ++--
 drivers/gpu/drm/i915/intel_display.c           | 10 ++++++----
 drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c       |  6 ++++--
 drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c       |  6 ++++--
 drivers/gpu/drm/rcar-du/rcar_du_crtc.c         |  6 ++++--
 drivers/gpu/drm/sti/sti_drm_crtc.c             |  6 ++++--
 drivers/gpu/drm/tegra/dc.c                     |  6 ++++--
 include/drm/drm_crtc_helper.h                  |  6 ++++--
 10 files changed, 40 insertions(+), 24 deletions(-)

diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c 
b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
index f69b92535505..8b8fe3762ca9 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
@@ -239,7 +239,8 @@ static int atmel_hlcdc_crtc_atomic_check(struct drm_crtc *c,
        return atmel_hlcdc_plane_prepare_disc_area(s);
 }

-static void atmel_hlcdc_crtc_atomic_begin(struct drm_crtc *c)
+static void atmel_hlcdc_crtc_atomic_begin(struct drm_crtc *c,
+                                         struct drm_crtc_state *old_s)
 {
        struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);

@@ -253,7 +254,8 @@ static void atmel_hlcdc_crtc_atomic_begin(struct drm_crtc 
*c)
        }
 }

-static void atmel_hlcdc_crtc_atomic_flush(struct drm_crtc *crtc)
+static void atmel_hlcdc_crtc_atomic_flush(struct drm_crtc *crtc,
+                                         struct drm_crtc_state *old_s)
 {
        /* TODO: write common plane control register if available */
 }
diff --git a/drivers/gpu/drm/drm_atomic_helper.c 
b/drivers/gpu/drm/drm_atomic_helper.c
index ac6601071414..4a48d76c4fb1 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -1170,7 +1170,7 @@ void drm_atomic_helper_commit_planes(struct drm_device 
*dev,
                if (!funcs || !funcs->atomic_begin)
                        continue;

-               funcs->atomic_begin(crtc);
+               funcs->atomic_begin(crtc, old_crtc_state);
        }

        for_each_plane_in_state(old_state, plane, old_plane_state, i) {
@@ -1200,7 +1200,7 @@ void drm_atomic_helper_commit_planes(struct drm_device 
*dev,
                if (!funcs || !funcs->atomic_flush)
                        continue;

-               funcs->atomic_flush(crtc);
+               funcs->atomic_flush(crtc, old_crtc_state);
        }
 }
 EXPORT_SYMBOL(drm_atomic_helper_commit_planes);
@@ -1236,7 +1236,7 @@ drm_atomic_helper_commit_planes_on_crtc(struct 
drm_crtc_state *old_crtc_state)

        crtc_funcs = crtc->helper_private;
        if (crtc_funcs && crtc_funcs->atomic_begin)
-               crtc_funcs->atomic_begin(crtc);
+               crtc_funcs->atomic_begin(crtc, old_crtc_state);

        drm_for_each_plane_mask(plane, crtc->dev, plane_mask) {
                struct drm_plane_state *old_plane_state =
@@ -1259,7 +1259,7 @@ drm_atomic_helper_commit_planes_on_crtc(struct 
drm_crtc_state *old_crtc_state)
        }

        if (crtc_funcs && crtc_funcs->atomic_flush)
-               crtc_funcs->atomic_flush(crtc);
+               crtc_funcs->atomic_flush(crtc, old_crtc_state);
 }
 EXPORT_SYMBOL(drm_atomic_helper_commit_planes_on_crtc);

diff --git a/drivers/gpu/drm/drm_plane_helper.c 
b/drivers/gpu/drm/drm_plane_helper.c
index 03b7afe455e6..cb5dab4c4337 100644
--- a/drivers/gpu/drm/drm_plane_helper.c
+++ b/drivers/gpu/drm/drm_plane_helper.c
@@ -436,7 +436,7 @@ int drm_plane_helper_commit(struct drm_plane *plane,

        for (i = 0; i < 2; i++) {
                if (crtc_funcs[i] && crtc_funcs[i]->atomic_begin)
-                       crtc_funcs[i]->atomic_begin(crtc[i]);
+                       crtc_funcs[i]->atomic_begin(crtc[i], crtc[i]->state);
        }

        /*
@@ -451,7 +451,7 @@ int drm_plane_helper_commit(struct drm_plane *plane,

        for (i = 0; i < 2; i++) {
                if (crtc_funcs[i] && crtc_funcs[i]->atomic_flush)
-                       crtc_funcs[i]->atomic_flush(crtc[i]);
+                       crtc_funcs[i]->atomic_flush(crtc[i], crtc[i]->state);
        }

        /*
diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index 671ca2820f82..def9444eeae2 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -102,8 +102,8 @@ static void vlv_prepare_pll(struct intel_crtc *crtc,
                            const struct intel_crtc_state *pipe_config);
 static void chv_prepare_pll(struct intel_crtc *crtc,
                            const struct intel_crtc_state *pipe_config);
-static void intel_begin_crtc_commit(struct drm_crtc *crtc);
-static void intel_finish_crtc_commit(struct drm_crtc *crtc);
+static void intel_begin_crtc_commit(struct drm_crtc *, struct drm_crtc_state 
*);
+static void intel_finish_crtc_commit(struct drm_crtc *, struct drm_crtc_state 
*);
 static void skl_init_scalers(struct drm_device *dev, struct intel_crtc 
*intel_crtc,
        struct intel_crtc_state *crtc_state);
 static int i9xx_get_refclk(const struct intel_crtc_state *crtc_state,
@@ -13440,7 +13440,8 @@ intel_disable_primary_plane(struct drm_plane *plane,
        dev_priv->display.update_primary_plane(crtc, NULL, 0, 0);
 }

-static void intel_begin_crtc_commit(struct drm_crtc *crtc)
+static void intel_begin_crtc_commit(struct drm_crtc *crtc,
+                                   struct drm_crtc_state *old_crtc_state)
 {
        struct drm_device *dev = crtc->dev;
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
@@ -13456,7 +13457,8 @@ static void intel_begin_crtc_commit(struct drm_crtc 
*crtc)
                skl_detach_scalers(intel_crtc);
 }

-static void intel_finish_crtc_commit(struct drm_crtc *crtc)
+static void intel_finish_crtc_commit(struct drm_crtc *crtc,
+                                    struct drm_crtc_state *old_crtc_state)
 {
        struct intel_crtc *intel_crtc = to_intel_crtc(crtc);

diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c 
b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c
index c4bb9d9c7667..4dc158ed2e95 100644
--- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c
+++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c
@@ -334,13 +334,15 @@ static int mdp4_crtc_atomic_check(struct drm_crtc *crtc,
        return 0;
 }

-static void mdp4_crtc_atomic_begin(struct drm_crtc *crtc)
+static void mdp4_crtc_atomic_begin(struct drm_crtc *crtc,
+                                  struct drm_crtc_state *old_crtc_state)
 {
        struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc);
        DBG("%s: begin", mdp4_crtc->name);
 }

-static void mdp4_crtc_atomic_flush(struct drm_crtc *crtc)
+static void mdp4_crtc_atomic_flush(struct drm_crtc *crtc,
+                                  struct drm_crtc_state *old_crtc_state)
 {
        struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc);
        struct drm_device *dev = crtc->dev;
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c 
b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
index dea3d2e559b1..4c1df4e6e5bc 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
@@ -388,13 +388,15 @@ static int mdp5_crtc_atomic_check(struct drm_crtc *crtc,
        return 0;
 }

-static void mdp5_crtc_atomic_begin(struct drm_crtc *crtc)
+static void mdp5_crtc_atomic_begin(struct drm_crtc *crtc,
+                                  struct drm_crtc_state *old_crtc_state)
 {
        struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
        DBG("%s: begin", mdp5_crtc->name);
 }

-static void mdp5_crtc_atomic_flush(struct drm_crtc *crtc)
+static void mdp5_crtc_atomic_flush(struct drm_crtc *crtc,
+                                  struct drm_crtc_state *old_crtc_state)
 {
        struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
        struct drm_device *dev = crtc->dev;
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c 
b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
index 65d6ba6621ac..48cb19949ca3 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
@@ -496,7 +496,8 @@ static bool rcar_du_crtc_mode_fixup(struct drm_crtc *crtc,
        return true;
 }

-static void rcar_du_crtc_atomic_begin(struct drm_crtc *crtc)
+static void rcar_du_crtc_atomic_begin(struct drm_crtc *crtc,
+                                     struct drm_crtc_state *old_crtc_state)
 {
        struct drm_pending_vblank_event *event = crtc->state->event;
        struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);
@@ -512,7 +513,8 @@ static void rcar_du_crtc_atomic_begin(struct drm_crtc *crtc)
        }
 }

-static void rcar_du_crtc_atomic_flush(struct drm_crtc *crtc)
+static void rcar_du_crtc_atomic_flush(struct drm_crtc *crtc,
+                                     struct drm_crtc_state *old_crtc_state)
 {
        struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc);

diff --git a/drivers/gpu/drm/sti/sti_drm_crtc.c 
b/drivers/gpu/drm/sti/sti_drm_crtc.c
index 6b641c5a2ec7..26e63bf14efe 100644
--- a/drivers/gpu/drm/sti/sti_drm_crtc.c
+++ b/drivers/gpu/drm/sti/sti_drm_crtc.c
@@ -164,7 +164,8 @@ sti_drm_crtc_mode_set_nofb(struct drm_crtc *crtc)
        sti_drm_crtc_mode_set(crtc, &crtc->state->adjusted_mode);
 }

-static void sti_drm_atomic_begin(struct drm_crtc *crtc)
+static void sti_drm_atomic_begin(struct drm_crtc *crtc,
+                                struct drm_crtc_state *old_crtc_state)
 {
        struct sti_mixer *mixer = to_sti_mixer(crtc);

@@ -178,7 +179,8 @@ static void sti_drm_atomic_begin(struct drm_crtc *crtc)
        }
 }

-static void sti_drm_atomic_flush(struct drm_crtc *crtc)
+static void sti_drm_atomic_flush(struct drm_crtc *crtc,
+                                struct drm_crtc_state *old_crtc_state)
 {
 }

diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index d447701173e6..24b38090dfd3 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -1275,7 +1275,8 @@ static int tegra_crtc_atomic_check(struct drm_crtc *crtc,
        return 0;
 }

-static void tegra_crtc_atomic_begin(struct drm_crtc *crtc)
+static void tegra_crtc_atomic_begin(struct drm_crtc *crtc,
+                                   struct drm_crtc_state *old_crtc_state)
 {
        struct tegra_dc *dc = to_tegra_dc(crtc);

@@ -1289,7 +1290,8 @@ static void tegra_crtc_atomic_begin(struct drm_crtc *crtc)
        }
 }

-static void tegra_crtc_atomic_flush(struct drm_crtc *crtc)
+static void tegra_crtc_atomic_flush(struct drm_crtc *crtc,
+                                   struct drm_crtc_state *old_crtc_state)
 {
        struct tegra_dc_state *state = to_dc_state(crtc->state);
        struct tegra_dc *dc = to_tegra_dc(crtc);
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index 4562bd12bb4a..800e0d1cf32c 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -108,8 +108,10 @@ struct drm_crtc_helper_funcs {
        /* atomic helpers */
        int (*atomic_check)(struct drm_crtc *crtc,
                            struct drm_crtc_state *state);
-       void (*atomic_begin)(struct drm_crtc *crtc);
-       void (*atomic_flush)(struct drm_crtc *crtc);
+       void (*atomic_begin)(struct drm_crtc *crtc,
+                            struct drm_crtc_state *old_crtc_state);
+       void (*atomic_flush)(struct drm_crtc *crtc,
+                            struct drm_crtc_state *old_crtc_state);
 };

 /**
-- 
2.1.0

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