v2: Don't check DDB on pre-SKL platforms Don't check DDB state on disabled pipes Signed-off-by: Damien Lespiau <damien.lespiau@xxxxxxxxx> --- drivers/gpu/drm/i915/i915_drv.h | 9 +++++++ drivers/gpu/drm/i915/intel_display.c | 51 ++++++++++++++++++++++++++++++++++++ 2 files changed, 60 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 95e57dc..0baf7f3 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1424,6 +1424,15 @@ static inline uint16_t skl_ddb_entry_size(const struct skl_ddb_entry *entry) return entry->end - entry->start + 1; } +static inline bool skl_ddb_entry_equal(const struct skl_ddb_entry *e1, + const struct skl_ddb_entry *e2) +{ + if (e1->start == e2->start && e1->end == e2->end) + return true; + + return false; +} + struct skl_ddb_allocation { struct skl_ddb_entry plane[I915_MAX_PIPES][I915_MAX_PLANES]; struct skl_ddb_entry cursor[I915_MAX_PIPES]; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 9b31342..35d3389 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -10944,6 +10944,56 @@ intel_pipe_config_compare(struct drm_device *dev, return true; } +static void check_wm_state(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + struct skl_ddb_allocation hw_ddb, *sw_ddb; + struct intel_crtc *intel_crtc; + int plane; + + if (INTEL_INFO(dev)->gen < 9) + return; + + skl_ddb_get_hw_state(dev_priv, &hw_ddb); + sw_ddb = &dev_priv->wm.skl_hw.ddb; + + for_each_intel_crtc(dev, intel_crtc) { + struct skl_ddb_entry *hw_entry, *sw_entry; + const enum pipe pipe = intel_crtc->pipe; + + if (!intel_crtc->active) + continue; + + /* planes */ + for_each_plane(pipe, plane) { + hw_entry = &hw_ddb.plane[pipe][plane]; + sw_entry = &sw_ddb->plane[pipe][plane]; + + if (skl_ddb_entry_equal(hw_entry, sw_entry)) + 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); + } + + /* cursor */ + hw_entry = &hw_ddb.cursor[pipe]; + sw_entry = &sw_ddb->cursor[pipe]; + + if (skl_ddb_entry_equal(hw_entry, sw_entry)) + continue; + + 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); + } +} + static void check_connector_state(struct drm_device *dev) { @@ -11143,6 +11193,7 @@ check_shared_dpll_state(struct drm_device *dev) void intel_modeset_check_state(struct drm_device *dev) { + check_wm_state(dev); check_connector_state(dev); check_encoder_state(dev); check_crtc_state(dev); -- 1.8.3.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx