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backend/drm: atomically reset state after VT switch

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Allows the KMS driver to parallelize the modesets, so should be
faster than going through each CRTC one by one.
This commit is contained in:
Simon Ser 2024-02-14 18:54:01 +01:00
parent 836cb820d0
commit 505175e56f
5 changed files with 61 additions and 14 deletions
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14
backend/drm/legacy.c
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@ -227,6 +227,20 @@ bool drm_legacy_crtc_set_gamma(struct wlr_drm_backend *drm,
return true;
}
static bool legacy_reset(struct wlr_drm_backend *drm) {
bool ok = true;
for (size_t i = 0; i < drm->num_crtcs; i++) {
struct wlr_drm_crtc *crtc = &drm->crtcs[i];
if (drmModeSetCrtc(drm->fd, crtc->id, 0, 0, 0, NULL, 0, NULL) != 0) {
wlr_log_errno(WLR_ERROR, "Failed to disable CRTC %"PRIu32,
crtc->id);
ok = false;
}
}
return ok;
}
const struct wlr_drm_interface legacy_iface = {
.crtc_commit = legacy_crtc_commit,
.reset = legacy_reset,
};