From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
In order to add more MBUS sanitation into the code we'll want
to reuse a bunch of the code that performs the MBUS/related
hardware programming. Currently that code comes after the
main skl_wm_get_hw_state_and_sanitize() entrypoint. In order
to avoid annoying forward declarations relocate the
skl_wm_get_hw_state_and_sanitize() and related stuff nearer to
the end of the file.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/skl_watermark.c | 420 +++++++++----------
1 file changed, 210 insertions(+), 210 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c
index 3b0e87edbacf..92794dfbd3bd 100644
--- a/drivers/gpu/drm/i915/display/skl_watermark.c
+++ b/drivers/gpu/drm/i915/display/skl_watermark.c
@@ -3048,202 +3048,6 @@ static void skl_wm_get_hw_state(struct drm_i915_private *i915)
dbuf_state->enabled_slices = i915->display.dbuf.enabled_slices;
}
-static bool skl_dbuf_is_misconfigured(struct drm_i915_private *i915)
-{
- const struct intel_dbuf_state *dbuf_state =
- to_intel_dbuf_state(i915->display.dbuf.obj.state);
- struct skl_ddb_entry entries[I915_MAX_PIPES] = {};
- struct intel_crtc *crtc;
-
- for_each_intel_crtc(&i915->drm, crtc) {
- const struct intel_crtc_state *crtc_state =
- to_intel_crtc_state(crtc->base.state);
-
- entries[crtc->pipe] = crtc_state->wm.skl.ddb;
- }
-
- for_each_intel_crtc(&i915->drm, crtc) {
- const struct intel_crtc_state *crtc_state =
- to_intel_crtc_state(crtc->base.state);
- u8 slices;
-
- slices = skl_compute_dbuf_slices(crtc, dbuf_state->active_pipes,
- dbuf_state->joined_mbus);
- if (dbuf_state->slices[crtc->pipe] & ~slices)
- return true;
-
- if (skl_ddb_allocation_overlaps(&crtc_state->wm.skl.ddb, entries,
- I915_MAX_PIPES, crtc->pipe))
- return true;
- }
-
- return false;
-}
-
-static void skl_wm_sanitize(struct drm_i915_private *i915)
-{
- struct intel_crtc *crtc;
-
- /*
- * On TGL/RKL (at least) the BIOS likes to assign the planes
- * to the wrong DBUF slices. This will cause an infinite loop
- * in skl_commit_modeset_enables() as it can't find a way to
- * transition between the old bogus DBUF layout to the new
- * proper DBUF layout without DBUF allocation overlaps between
- * the planes (which cannot be allowed or else the hardware
- * may hang). If we detect a bogus DBUF layout just turn off
- * all the planes so that skl_commit_modeset_enables() can
- * simply ignore them.
- */
- if (!skl_dbuf_is_misconfigured(i915))
- return;
-
- drm_dbg_kms(&i915->drm, "BIOS has misprogrammed the DBUF, disabling all planes\n");
-
- for_each_intel_crtc(&i915->drm, crtc) {
- struct intel_plane *plane = to_intel_plane(crtc->base.primary);
- const struct intel_plane_state *plane_state =
- to_intel_plane_state(plane->base.state);
- struct intel_crtc_state *crtc_state =
- to_intel_crtc_state(crtc->base.state);
-
- if (plane_state->uapi.visible)
- intel_plane_disable_noatomic(crtc, plane);
-
- drm_WARN_ON(&i915->drm, crtc_state->active_planes != 0);
-
- memset(&crtc_state->wm.skl.ddb, 0, sizeof(crtc_state->wm.skl.ddb));
- }
-}
-
-static void skl_wm_get_hw_state_and_sanitize(struct drm_i915_private *i915)
-{
- skl_wm_get_hw_state(i915);
- skl_wm_sanitize(i915);
-}
-
-void intel_wm_state_verify(struct intel_atomic_state *state,
- struct intel_crtc *crtc)
-{
- struct drm_i915_private *i915 = to_i915(state->base.dev);
- const struct intel_crtc_state *new_crtc_state =
- intel_atomic_get_new_crtc_state(state, crtc);
- struct skl_hw_state {
- struct skl_ddb_entry ddb[I915_MAX_PLANES];
- struct skl_ddb_entry ddb_y[I915_MAX_PLANES];
- struct skl_pipe_wm wm;
- } *hw;
- const struct skl_pipe_wm *sw_wm = &new_crtc_state->wm.skl.optimal;
- struct intel_plane *plane;
- u8 hw_enabled_slices;
- int level;
-
- if (DISPLAY_VER(i915) < 9 || !new_crtc_state->hw.active)
- return;
-
- hw = kzalloc(sizeof(*hw), GFP_KERNEL);
- if (!hw)
- return;
-
- skl_pipe_wm_get_hw_state(crtc, &hw->wm);
-
- skl_pipe_ddb_get_hw_state(crtc, hw->ddb, hw->ddb_y);
-
- hw_enabled_slices = intel_enabled_dbuf_slices_mask(i915);
-
- if (DISPLAY_VER(i915) >= 11 &&
- hw_enabled_slices != i915->display.dbuf.enabled_slices)
- drm_err(&i915->drm,
- "mismatch in DBUF Slices (expected 0x%x, got 0x%x)\n",
- i915->display.dbuf.enabled_slices,
- hw_enabled_slices);
-
- for_each_intel_plane_on_crtc(&i915->drm, crtc, plane) {
- const struct skl_ddb_entry *hw_ddb_entry, *sw_ddb_entry;
- const struct skl_wm_level *hw_wm_level, *sw_wm_level;
-
- /* Watermarks */
- for (level = 0; level < i915->display.wm.num_levels; level++) {
- hw_wm_level = &hw->wm.planes[plane->id].wm[level];
- sw_wm_level = skl_plane_wm_level(sw_wm, plane->id, level);
-
- if (skl_wm_level_equals(hw_wm_level, sw_wm_level))
- continue;
-
- drm_err(&i915->drm,
- "[PLANE:%d:%s] mismatch in WM%d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
- plane->base.base.id, plane->base.name, level,
- sw_wm_level->enable,
- sw_wm_level->blocks,
- sw_wm_level->lines,
- hw_wm_level->enable,
- hw_wm_level->blocks,
- hw_wm_level->lines);
- }
-
- hw_wm_level = &hw->wm.planes[plane->id].trans_wm;
- sw_wm_level = skl_plane_trans_wm(sw_wm, plane->id);
-
- if (!skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
- drm_err(&i915->drm,
- "[PLANE:%d:%s] mismatch in trans WM (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
- plane->base.base.id, plane->base.name,
- sw_wm_level->enable,
- sw_wm_level->blocks,
- sw_wm_level->lines,
- hw_wm_level->enable,
- hw_wm_level->blocks,
- hw_wm_level->lines);
- }
-
- hw_wm_level = &hw->wm.planes[plane->id].sagv.wm0;
- sw_wm_level = &sw_wm->planes[plane->id].sagv.wm0;
-
- if (HAS_HW_SAGV_WM(i915) &&
- !skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
- drm_err(&i915->drm,
- "[PLANE:%d:%s] mismatch in SAGV WM (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
- plane->base.base.id, plane->base.name,
- sw_wm_level->enable,
- sw_wm_level->blocks,
- sw_wm_level->lines,
- hw_wm_level->enable,
- hw_wm_level->blocks,
- hw_wm_level->lines);
- }
-
- hw_wm_level = &hw->wm.planes[plane->id].sagv.trans_wm;
- sw_wm_level = &sw_wm->planes[plane->id].sagv.trans_wm;
-
- if (HAS_HW_SAGV_WM(i915) &&
- !skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
- drm_err(&i915->drm,
- "[PLANE:%d:%s] mismatch in SAGV trans WM (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
- plane->base.base.id, plane->base.name,
- sw_wm_level->enable,
- sw_wm_level->blocks,
- sw_wm_level->lines,
- hw_wm_level->enable,
- hw_wm_level->blocks,
- hw_wm_level->lines);
- }
-
- /* DDB */
- hw_ddb_entry = &hw->ddb[PLANE_CURSOR];
- sw_ddb_entry = &new_crtc_state->wm.skl.plane_ddb[PLANE_CURSOR];
-
- if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
- drm_err(&i915->drm,
- "[PLANE:%d:%s] mismatch in DDB (expected (%u,%u), found (%u,%u))\n",
- plane->base.base.id, plane->base.name,
- sw_ddb_entry->start, sw_ddb_entry->end,
- hw_ddb_entry->start, hw_ddb_entry->end);
- }
- }
-
- kfree(hw);
-}
-
bool skl_watermark_ipc_enabled(struct drm_i915_private *i915)
{
return i915->display.wm.ipc_enabled;
@@ -3399,20 +3203,6 @@ static void skl_setup_wm_latency(struct drm_i915_private *i915)
intel_print_wm_latency(i915, "Gen9 Plane", i915->display.wm.skl_latency);
}
-static const struct intel_wm_funcs skl_wm_funcs = {
- .compute_global_watermarks = skl_compute_wm,
- .get_hw_state = skl_wm_get_hw_state_and_sanitize,
-};
-
-void skl_wm_init(struct drm_i915_private *i915)
-{
- intel_sagv_init(i915);
-
- skl_setup_wm_latency(i915);
-
- i915->display.funcs.wm = &skl_wm_funcs;
-}
-
static struct intel_global_state *intel_dbuf_duplicate_state(struct intel_global_obj *obj)
{
struct intel_dbuf_state *dbuf_state;
@@ -3757,6 +3547,216 @@ void intel_dbuf_post_plane_update(struct intel_atomic_state *state)
gen9_dbuf_slices_update(i915, new_slices);
}
+static bool skl_dbuf_is_misconfigured(struct drm_i915_private *i915)
+{
+ const struct intel_dbuf_state *dbuf_state =
+ to_intel_dbuf_state(i915->display.dbuf.obj.state);
+ struct skl_ddb_entry entries[I915_MAX_PIPES] = {};
+ struct intel_crtc *crtc;
+
+ for_each_intel_crtc(&i915->drm, crtc) {
+ const struct intel_crtc_state *crtc_state =
+ to_intel_crtc_state(crtc->base.state);
+
+ entries[crtc->pipe] = crtc_state->wm.skl.ddb;
+ }
+
+ for_each_intel_crtc(&i915->drm, crtc) {
+ const struct intel_crtc_state *crtc_state =
+ to_intel_crtc_state(crtc->base.state);
+ u8 slices;
+
+ slices = skl_compute_dbuf_slices(crtc, dbuf_state->active_pipes,
+ dbuf_state->joined_mbus);
+ if (dbuf_state->slices[crtc->pipe] & ~slices)
+ return true;
+
+ if (skl_ddb_allocation_overlaps(&crtc_state->wm.skl.ddb, entries,
+ I915_MAX_PIPES, crtc->pipe))
+ return true;
+ }
+
+ return false;
+}
+
+static void skl_wm_sanitize(struct drm_i915_private *i915)
+{
+ struct intel_crtc *crtc;
+
+ /*
+ * On TGL/RKL (at least) the BIOS likes to assign the planes
+ * to the wrong DBUF slices. This will cause an infinite loop
+ * in skl_commit_modeset_enables() as it can't find a way to
+ * transition between the old bogus DBUF layout to the new
+ * proper DBUF layout without DBUF allocation overlaps between
+ * the planes (which cannot be allowed or else the hardware
+ * may hang). If we detect a bogus DBUF layout just turn off
+ * all the planes so that skl_commit_modeset_enables() can
+ * simply ignore them.
+ */
+ if (!skl_dbuf_is_misconfigured(i915))
+ return;
+
+ drm_dbg_kms(&i915->drm, "BIOS has misprogrammed the DBUF, disabling all planes\n");
+
+ for_each_intel_crtc(&i915->drm, crtc) {
+ struct intel_plane *plane = to_intel_plane(crtc->base.primary);
+ const struct intel_plane_state *plane_state =
+ to_intel_plane_state(plane->base.state);
+ struct intel_crtc_state *crtc_state =
+ to_intel_crtc_state(crtc->base.state);
+
+ if (plane_state->uapi.visible)
+ intel_plane_disable_noatomic(crtc, plane);
+
+ drm_WARN_ON(&i915->drm, crtc_state->active_planes != 0);
+
+ memset(&crtc_state->wm.skl.ddb, 0, sizeof(crtc_state->wm.skl.ddb));
+ }
+}
+
+static void skl_wm_get_hw_state_and_sanitize(struct drm_i915_private *i915)
+{
+ skl_wm_get_hw_state(i915);
+ skl_wm_sanitize(i915);
+}
+
+void intel_wm_state_verify(struct intel_atomic_state *state,
+ struct intel_crtc *crtc)
+{
+ struct drm_i915_private *i915 = to_i915(state->base.dev);
+ const struct intel_crtc_state *new_crtc_state =
+ intel_atomic_get_new_crtc_state(state, crtc);
+ struct skl_hw_state {
+ struct skl_ddb_entry ddb[I915_MAX_PLANES];
+ struct skl_ddb_entry ddb_y[I915_MAX_PLANES];
+ struct skl_pipe_wm wm;
+ } *hw;
+ const struct skl_pipe_wm *sw_wm = &new_crtc_state->wm.skl.optimal;
+ struct intel_plane *plane;
+ u8 hw_enabled_slices;
+ int level;
+
+ if (DISPLAY_VER(i915) < 9 || !new_crtc_state->hw.active)
+ return;
+
+ hw = kzalloc(sizeof(*hw), GFP_KERNEL);
+ if (!hw)
+ return;
+
+ skl_pipe_wm_get_hw_state(crtc, &hw->wm);
+
+ skl_pipe_ddb_get_hw_state(crtc, hw->ddb, hw->ddb_y);
+
+ hw_enabled_slices = intel_enabled_dbuf_slices_mask(i915);
+
+ if (DISPLAY_VER(i915) >= 11 &&
+ hw_enabled_slices != i915->display.dbuf.enabled_slices)
+ drm_err(&i915->drm,
+ "mismatch in DBUF Slices (expected 0x%x, got 0x%x)\n",
+ i915->display.dbuf.enabled_slices,
+ hw_enabled_slices);
+
+ for_each_intel_plane_on_crtc(&i915->drm, crtc, plane) {
+ const struct skl_ddb_entry *hw_ddb_entry, *sw_ddb_entry;
+ const struct skl_wm_level *hw_wm_level, *sw_wm_level;
+
+ /* Watermarks */
+ for (level = 0; level < i915->display.wm.num_levels; level++) {
+ hw_wm_level = &hw->wm.planes[plane->id].wm[level];
+ sw_wm_level = skl_plane_wm_level(sw_wm, plane->id, level);
+
+ if (skl_wm_level_equals(hw_wm_level, sw_wm_level))
+ continue;
+
+ drm_err(&i915->drm,
+ "[PLANE:%d:%s] mismatch in WM%d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
+ plane->base.base.id, plane->base.name, level,
+ sw_wm_level->enable,
+ sw_wm_level->blocks,
+ sw_wm_level->lines,
+ hw_wm_level->enable,
+ hw_wm_level->blocks,
+ hw_wm_level->lines);
+ }
+
+ hw_wm_level = &hw->wm.planes[plane->id].trans_wm;
+ sw_wm_level = skl_plane_trans_wm(sw_wm, plane->id);
+
+ if (!skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
+ drm_err(&i915->drm,
+ "[PLANE:%d:%s] mismatch in trans WM (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
+ plane->base.base.id, plane->base.name,
+ sw_wm_level->enable,
+ sw_wm_level->blocks,
+ sw_wm_level->lines,
+ hw_wm_level->enable,
+ hw_wm_level->blocks,
+ hw_wm_level->lines);
+ }
+
+ hw_wm_level = &hw->wm.planes[plane->id].sagv.wm0;
+ sw_wm_level = &sw_wm->planes[plane->id].sagv.wm0;
+
+ if (HAS_HW_SAGV_WM(i915) &&
+ !skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
+ drm_err(&i915->drm,
+ "[PLANE:%d:%s] mismatch in SAGV WM (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
+ plane->base.base.id, plane->base.name,
+ sw_wm_level->enable,
+ sw_wm_level->blocks,
+ sw_wm_level->lines,
+ hw_wm_level->enable,
+ hw_wm_level->blocks,
+ hw_wm_level->lines);
+ }
+
+ hw_wm_level = &hw->wm.planes[plane->id].sagv.trans_wm;
+ sw_wm_level = &sw_wm->planes[plane->id].sagv.trans_wm;
+
+ if (HAS_HW_SAGV_WM(i915) &&
+ !skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
+ drm_err(&i915->drm,
+ "[PLANE:%d:%s] mismatch in SAGV trans WM (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
+ plane->base.base.id, plane->base.name,
+ sw_wm_level->enable,
+ sw_wm_level->blocks,
+ sw_wm_level->lines,
+ hw_wm_level->enable,
+ hw_wm_level->blocks,
+ hw_wm_level->lines);
+ }
+
+ /* DDB */
+ hw_ddb_entry = &hw->ddb[PLANE_CURSOR];
+ sw_ddb_entry = &new_crtc_state->wm.skl.plane_ddb[PLANE_CURSOR];
+
+ if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
+ drm_err(&i915->drm,
+ "[PLANE:%d:%s] mismatch in DDB (expected (%u,%u), found (%u,%u))\n",
+ plane->base.base.id, plane->base.name,
+ sw_ddb_entry->start, sw_ddb_entry->end,
+ hw_ddb_entry->start, hw_ddb_entry->end);
+ }
+ }
+
+ kfree(hw);
+}
+
+static const struct intel_wm_funcs skl_wm_funcs = {
+ .compute_global_watermarks = skl_compute_wm,
+ .get_hw_state = skl_wm_get_hw_state_and_sanitize,
+};
+
+void skl_wm_init(struct drm_i915_private *i915)
+{
+ intel_sagv_init(i915);
+
+ skl_setup_wm_latency(i915);
+
+ i915->display.funcs.wm = &skl_wm_funcs;
+}
+
static int skl_watermark_ipc_status_show(struct seq_file *m, void *data)
{
struct drm_i915_private *i915 = m->private;
--
2.45.2
