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drm/vc4: Do not include writeback conn load in load tracker

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The transposer/writeback connector should be running with a
lower priority, so shouldn't be factored into the load
calculations.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
This commit is contained in:
Dave Stevenson
2024-09-09 17:28:00 +01:00
committed by Dom Cobley
parent c948634a95
commit 7898c9872d
1 changed files with 13 additions and 4 deletions
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9
drivers/gpu/drm/vc4/vc4_kms.c
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@@ -661,19 +661,28 @@ static int vc4_load_tracker_atomic_check(struct drm_atomic_state *state)
for_each_oldnew_plane_in_state(state, plane, old_plane_state,
new_plane_state, i) {
struct vc4_plane_state *vc4_plane_state;
struct vc4_crtc *vc4_crtc;
if (old_plane_state->fb && old_plane_state->crtc) {
vc4_plane_state = to_vc4_plane_state(old_plane_state);
vc4_crtc = to_vc4_crtc(old_plane_state->crtc);
if (!vc4_crtc->feeds_txp) {
load_state->membus_load -= vc4_plane_state->membus_load;
load_state->hvs_load -= vc4_plane_state->hvs_load;
}
}
if (new_plane_state->fb && new_plane_state->crtc) {
vc4_plane_state = to_vc4_plane_state(new_plane_state);
vc4_crtc = to_vc4_crtc(new_plane_state->crtc);
if (!vc4_crtc->feeds_txp) {
load_state->membus_load += vc4_plane_state->membus_load;
load_state->hvs_load += vc4_plane_state->hvs_load;
}
}
}
/* Don't check the load when the tracker is disabled. */
if (!vc4->load_tracker_enabled)