drm/i915: Extract skl_wm_crtc_disable_noatomic()

Hoist the dbuf stuff into a separate function from
intel_crtc_disable_noatomic_complete() so that the details
are better hidden inside skl_watermark.c.

We can also skip the whole thing on pre-skl since the dbuf state
isn't actually used on those platforms. The readout path does
still fill dbuf_state->active_pipes but we'll remedy that later.

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-6-ville.syrjala@linux.intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_modeset_setup.c b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
index 8269989..10a2421 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_modeset_setup.c
+++ b/drivers/gpu/drm/i915/display/intel_modeset_setup.c
@@ -158,8 +158,6 @@ static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
        struct drm_i915_private *i915 = to_i915(crtc->base.dev);
        struct intel_bw_state *bw_state =
                to_intel_bw_state(i915->display.bw.obj.state);
-       struct intel_dbuf_state *dbuf_state =
-               to_intel_dbuf_state(i915->display.dbuf.obj.state);
        struct intel_pmdemand_state *pmdemand_state =
                to_intel_pmdemand_state(i915->display.pmdemand.obj.state);
        struct intel_crtc_state *crtc_state =
@@ -178,8 +176,7 @@ static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
        intel_display_power_put_all_in_set(display, &crtc->enabled_power_domains);
 
        intel_cdclk_crtc_disable_noatomic(crtc);
-
-       dbuf_state->active_pipes &= ~BIT(pipe);
+       skl_wm_crtc_disable_noatomic(crtc);
 
        bw_state->data_rate[pipe] = 0;
        bw_state->num_active_planes[pipe] = 0;

diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c
index 10a1daa..4930e52 100644 (file)
--- a/drivers/gpu/drm/i915/display/skl_watermark.c
+++ b/drivers/gpu/drm/i915/display/skl_watermark.c
@@ -3845,6 +3845,19 @@ static void skl_wm_get_hw_state_and_sanitize(struct drm_i915_private *i915)
        skl_dbuf_sanitize(i915);
 }
 
+void skl_wm_crtc_disable_noatomic(struct intel_crtc *crtc)
+{
+       struct intel_display *display = to_intel_display(crtc);
+       struct intel_dbuf_state *dbuf_state =
+               to_intel_dbuf_state(display->dbuf.obj.state);
+       enum pipe pipe = crtc->pipe;
+
+       if (DISPLAY_VER(display) < 9)
+               return;
+
+       dbuf_state->active_pipes &= ~BIT(pipe);
+}
+
 void intel_wm_state_verify(struct intel_atomic_state *state,
                           struct intel_crtc *crtc)
 {

diff --git a/drivers/gpu/drm/i915/display/skl_watermark.h b/drivers/gpu/drm/i915/display/skl_watermark.h
index c554748..8c07c11 100644 (file)
--- a/drivers/gpu/drm/i915/display/skl_watermark.h
+++ b/drivers/gpu/drm/i915/display/skl_watermark.h
@@ -41,6 +41,8 @@ bool skl_ddb_allocation_overlaps(const struct skl_ddb_entry *ddb,
 void intel_wm_state_verify(struct intel_atomic_state *state,
                           struct intel_crtc *crtc);
 
+void skl_wm_crtc_disable_noatomic(struct intel_crtc *crtc);
+
 void skl_watermark_ipc_init(struct drm_i915_private *i915);
 void skl_watermark_ipc_update(struct drm_i915_private *i915);
 bool skl_watermark_ipc_enabled(struct drm_i915_private *i915);