The HVS state configuration is useful when debugging what's going on in
the vc4 hardware pipeline. Add an implementation of .atomic_print_state.
Signed-off-by: Maxime Ripard <max...@cerno.tech>
---
drivers/gpu/drm/vc4/vc4_kms.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c
index 26b771c919b1..bffd81d4bfcf 100644
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -701,9 +701,26 @@ static void vc4_hvs_channels_destroy_state(struct
drm_private_obj *obj,
kfree(hvs_state);
}
+static void vc4_hvs_channels_print_state(struct drm_printer *p,
+ const struct drm_private_state *state)
+{
+ struct vc4_hvs_state *hvs_state = to_vc4_hvs_state(state);
+ unsigned int i;
+
+ drm_printf(p, "HVS State\n");
+ drm_printf(p, "\tCore Clock Rate: %lu\n", hvs_state->core_clock_rate);
+
+ for (i = 0; i < HVS_NUM_CHANNELS; i++) {
+ drm_printf(p, "\tChannel %d\n", i);
+ drm_printf(p, "\t\tin use=%d\n",
hvs_state->fifo_state[i].in_use);
+ drm_printf(p, "\t\tload=%lu\n",
hvs_state->fifo_state[i].fifo_load);
+ }
+}
+
static const struct drm_private_state_funcs vc4_hvs_state_funcs = {
.atomic_duplicate_state = vc4_hvs_channels_duplicate_state,
.atomic_destroy_state = vc4_hvs_channels_destroy_state,
+ .atomic_print_state = vc4_hvs_channels_print_state,
};
static void vc4_hvs_channels_obj_fini(struct drm_device *dev, void *unused)
--
2.35.1
