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drm/i915/gen9: Add ddb changes to atomic debug output 

Finally, add some debugging output for ddb changes in the atomic debug
output. This makes it a lot easier to spot bugs from incorrect ddb
allocations.

Signed-off-by: Lyude <cpaul@redhat.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1476480722-13015-7-git-send-email-cpaul@redhat.com
This commit is contained in:
cpaul@redhat.com 2016-10-14 17:31:54 -04:00 committed by Paulo Zanoni
parent d8c0fafcbd
commit 413fc530c5
1 changed files with 54 additions and 0 deletions
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54
drivers/gpu/drm/i915/intel_pm.c
View File

@ -4073,6 +4073,58 @@ skl_copy_wm_for_pipe(struct skl_wm_values *dst,
sizeof(dst->ddb.plane[pipe]));
}
static void
skl_print_wm_changes(const struct drm_atomic_state *state)
{
const struct drm_device *dev = state->dev;
const struct drm_i915_private *dev_priv = to_i915(dev);
const struct intel_atomic_state *intel_state =
to_intel_atomic_state(state);
const struct drm_crtc *crtc;
const struct drm_crtc_state *cstate;
const struct drm_plane *plane;
const struct intel_plane *intel_plane;
const struct drm_plane_state *pstate;
const struct skl_ddb_allocation *old_ddb = &dev_priv->wm.skl_hw.ddb;
const struct skl_ddb_allocation *new_ddb = &intel_state->wm_results.ddb;
enum pipe pipe;
int id;
int i, j;
for_each_crtc_in_state(state, crtc, cstate, i) {
pipe = to_intel_crtc(crtc)->pipe;
for_each_plane_in_state(state, plane, pstate, j) {
const struct skl_ddb_entry *old, *new;
intel_plane = to_intel_plane(plane);
id = skl_wm_plane_id(intel_plane);
old = &old_ddb->plane[pipe][id];
new = &new_ddb->plane[pipe][id];
if (intel_plane->pipe != pipe)
continue;
if (skl_ddb_entry_equal(old, new))
continue;
if (id != PLANE_CURSOR) {
DRM_DEBUG_ATOMIC("[PLANE:%d:plane %d%c] ddb (%d - %d) -> (%d - %d)\n",
plane->base.id, id + 1,
pipe_name(pipe),
old->start, old->end,
new->start, new->end);
} else {
DRM_DEBUG_ATOMIC("[PLANE:%d:cursor %c] ddb (%d - %d) -> (%d - %d)\n",
plane->base.id,
pipe_name(pipe),
old->start, old->end,
new->start, new->end);
}
}
}
}
static int
skl_compute_wm(struct drm_atomic_state *state)
{
@ -4134,6 +4186,8 @@ skl_compute_wm(struct drm_atomic_state *state)
intel_cstate->update_wm_pre = true;
}
skl_print_wm_changes(state);
return 0;
}