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drm/i915/gen9: Actually verify WM levels in verify_wm_state() 

Thanks to Paulo Zanoni for indirectly pointing this out.

Looks like we never actually added any code for checking whether or not
we actually wrote watermark levels properly. Let's fix that.

Changes since v1:
- Use %u instead of %d when printing WM state mismatches

Signed-off-by: Lyude <cpaul@redhat.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.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/1476480722-13015-10-git-send-email-cpaul@redhat.com
This commit is contained in:
cpaul@redhat.com 2016-10-14 17:31:57 -04:00 committed by Paulo Zanoni
parent 45ece23016
commit 3de8a14c28
1 changed files with 84 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

100
drivers/gpu/drm/i915/intel_display.c
View File

@ -13462,30 +13462,66 @@ static void verify_wm_state(struct drm_crtc *crtc,
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct skl_ddb_allocation hw_ddb, *sw_ddb;
struct skl_ddb_entry *hw_entry, *sw_entry;
struct skl_pipe_wm hw_wm, *sw_wm;
struct skl_plane_wm *hw_plane_wm, *sw_plane_wm;
struct skl_ddb_entry *hw_ddb_entry, *sw_ddb_entry;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
const enum pipe pipe = intel_crtc->pipe;
int plane;
int plane, level, max_level = ilk_wm_max_level(dev_priv);
if (INTEL_INFO(dev)->gen < 9 || !new_state->active)
return;
skl_pipe_wm_get_hw_state(crtc, &hw_wm);
sw_wm = &intel_crtc->wm.active.skl;
skl_ddb_get_hw_state(dev_priv, &hw_ddb);
sw_ddb = &dev_priv->wm.skl_hw.ddb;
/* planes */
for_each_plane(dev_priv, pipe, plane) {
hw_entry = &hw_ddb.plane[pipe][plane];
sw_entry = &sw_ddb->plane[pipe][plane];
hw_plane_wm = &hw_wm.planes[plane];
sw_plane_wm = &sw_wm->planes[plane];
if (skl_ddb_entry_equal(hw_entry, sw_entry))
continue;
/* Watermarks */
for (level = 0; level <= max_level; level++) {
if (skl_wm_level_equals(&hw_plane_wm->wm[level],
&sw_plane_wm->wm[level]))
continue;
DRM_ERROR("mismatch in DDB state pipe %c plane %d "
"(expected (%u,%u), found (%u,%u))\n",
pipe_name(pipe), plane + 1,
sw_entry->start, sw_entry->end,
hw_entry->start, hw_entry->end);
DRM_ERROR("mismatch in WM pipe %c plane %d level %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
pipe_name(pipe), plane + 1, level,
sw_plane_wm->wm[level].plane_en,
sw_plane_wm->wm[level].plane_res_b,
sw_plane_wm->wm[level].plane_res_l,
hw_plane_wm->wm[level].plane_en,
hw_plane_wm->wm[level].plane_res_b,
hw_plane_wm->wm[level].plane_res_l);
}
if (!skl_wm_level_equals(&hw_plane_wm->trans_wm,
&sw_plane_wm->trans_wm)) {
DRM_ERROR("mismatch in trans WM pipe %c plane %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
pipe_name(pipe), plane + 1,
sw_plane_wm->trans_wm.plane_en,
sw_plane_wm->trans_wm.plane_res_b,
sw_plane_wm->trans_wm.plane_res_l,
hw_plane_wm->trans_wm.plane_en,
hw_plane_wm->trans_wm.plane_res_b,
hw_plane_wm->trans_wm.plane_res_l);
}
/* DDB */
hw_ddb_entry = &hw_ddb.plane[pipe][plane];
sw_ddb_entry = &sw_ddb->plane[pipe][plane];
if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
DRM_ERROR("mismatch in DDB state pipe %c plane %d "
"(expected (%u,%u), found (%u,%u))\n",
pipe_name(pipe), plane + 1,
sw_ddb_entry->start, sw_ddb_entry->end,
hw_ddb_entry->start, hw_ddb_entry->end);
}
}
/*
@ -13495,15 +13531,47 @@ static void verify_wm_state(struct drm_crtc *crtc,
* once the plane becomes visible, we can skip this check
*/
if (intel_crtc->cursor_addr) {
hw_entry = &hw_ddb.plane[pipe][PLANE_CURSOR];
sw_entry = &sw_ddb->plane[pipe][PLANE_CURSOR];
hw_plane_wm = &hw_wm.planes[PLANE_CURSOR];
sw_plane_wm = &sw_wm->planes[PLANE_CURSOR];
if (!skl_ddb_entry_equal(hw_entry, sw_entry)) {
/* Watermarks */
for (level = 0; level <= max_level; level++) {
if (skl_wm_level_equals(&hw_plane_wm->wm[level],
&sw_plane_wm->wm[level]))
continue;
DRM_ERROR("mismatch in WM pipe %c cursor level %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
pipe_name(pipe), level,
sw_plane_wm->wm[level].plane_en,
sw_plane_wm->wm[level].plane_res_b,
sw_plane_wm->wm[level].plane_res_l,
hw_plane_wm->wm[level].plane_en,
hw_plane_wm->wm[level].plane_res_b,
hw_plane_wm->wm[level].plane_res_l);
}
if (!skl_wm_level_equals(&hw_plane_wm->trans_wm,
&sw_plane_wm->trans_wm)) {
DRM_ERROR("mismatch in trans WM pipe %c cursor (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
pipe_name(pipe),
sw_plane_wm->trans_wm.plane_en,
sw_plane_wm->trans_wm.plane_res_b,
sw_plane_wm->trans_wm.plane_res_l,
hw_plane_wm->trans_wm.plane_en,
hw_plane_wm->trans_wm.plane_res_b,
hw_plane_wm->trans_wm.plane_res_l);
}
/* DDB */
hw_ddb_entry = &hw_ddb.plane[pipe][PLANE_CURSOR];
sw_ddb_entry = &sw_ddb->plane[pipe][PLANE_CURSOR];
if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
DRM_ERROR("mismatch in DDB state pipe %c cursor "
"(expected (%u,%u), found (%u,%u))\n",
pipe_name(pipe),
sw_entry->start, sw_entry->end,
hw_entry->start, hw_entry->end);
sw_ddb_entry->start, sw_ddb_entry->end,
hw_ddb_entry->start, hw_ddb_entry->end);
}
}
}