diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2024-04-02 18:50:11 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2024-04-04 16:28:44 +0300 |
| commit | d91254e932b2a4e443f6086a8e511bba35108fce (patch) | |
| tree | ded6bae0546a57ed7ce4f8410fd9fd1ff3d3bd92 | |
| parent | a2e83f27cc06b4f366e8d70ebc1d2659bd16ab62 (diff) | |
drm/i915: Add debugs for mbus joining and dbuf ratio programming
Add some debugs so that we can actually observe what is
actually happening during the mbus/dbuf programming steps.
We can just shove them into fairly low level functions as
none of them are called during any critical sections/etc.
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240402155016.13733-10-ville.syrjala@linux.intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/skl_watermark.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c index 7767c5eada36..a118ecf9e532 100644 --- a/drivers/gpu/drm/i915/display/skl_watermark.c +++ b/drivers/gpu/drm/i915/display/skl_watermark.c @@ -3647,6 +3647,9 @@ void intel_dbuf_mdclk_cdclk_ratio_update(struct drm_i915_private *i915, u8 ratio if (joined_mbus) ratio *= 2; + drm_dbg_kms(&i915->drm, "Updating dbuf ratio to %d (mbus joined: %s)\n", + ratio, str_yes_no(joined_mbus)); + for_each_dbuf_slice(i915, slice) intel_de_rmw(i915, DBUF_CTL_S(slice), DBUF_MIN_TRACKER_STATE_SERVICE_MASK, @@ -3680,10 +3683,16 @@ static void intel_dbuf_mdclk_min_tracker_update(struct intel_atomic_state *state static void intel_dbuf_mbus_join_update(struct intel_atomic_state *state) { struct drm_i915_private *i915 = to_i915(state->base.dev); + const struct intel_dbuf_state *old_dbuf_state = + intel_atomic_get_old_dbuf_state(state); const struct intel_dbuf_state *new_dbuf_state = intel_atomic_get_new_dbuf_state(state); u32 mbus_ctl; + drm_dbg_kms(&i915->drm, "Changing mbus joined: %s -> %s\n", + str_yes_no(old_dbuf_state->joined_mbus), + str_yes_no(new_dbuf_state->joined_mbus)); + /* * TODO: Implement vblank synchronized MBUS joining changes. * Must be properly coordinated with dbuf reprogramming. |