From: Ville Syrjälä <[email protected]> Our DSB support is borked. The DSB seems to get stuck and we just get: [drm:intel_dsb_commit [i915]] DSB execution started - head 0xa8c000, tail 0x10c0 [drm:intel_dsb_commit [i915]] *ERROR* Timed out waiting for DSB workload completion. [drm:icl_load_luts [i915]] DSB engine is busy.
Which even seems to result in underruns on some internal stuff. Let's just disable it all until someone figures out what's wrong with it. Signed-off-by: Ville Syrjälä <[email protected]> --- drivers/gpu/drm/i915/display/intel_dsb.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c index 12776f09f227..a16a78cd0ebe 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.c +++ b/drivers/gpu/drm/i915/display/intel_dsb.c @@ -105,7 +105,11 @@ intel_dsb_get(struct intel_crtc *crtc) u32 *buf; intel_wakeref_t wakeref; - if (!HAS_DSB(i915)) + /* + * FIXME DSB support is busted. DSB tends to be + * busy when it shouldn't be. Disable until fixed. + */ + if (true || !HAS_DSB(i915)) return dsb; if (dsb->refcount++ != 0) -- 2.24.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
