From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Decode the DSB error interrupts into human readable form for easier debugging. Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_dsb.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c index aba57ddfbb92..db69b1c676f7 100644 --- a/drivers/gpu/drm/i915/display/intel_dsb.c +++ b/drivers/gpu/drm/i915/display/intel_dsb.c @@ -860,7 +860,16 @@ void intel_dsb_irq_handler(struct intel_display *display, } errors = tmp & dsb_error_int_status(display); - if (errors) - drm_err(display->drm, "[CRTC:%d:%s] DSB %d error interrupt: 0x%x\n", - crtc->base.base.id, crtc->base.name, dsb_id, errors); + if (errors & DSB_ATS_FAULT_INT_STATUS) + drm_err(display->drm, "[CRTC:%d:%s] DSB %d ATS fault\n", + crtc->base.base.id, crtc->base.name, dsb_id); + if (errors & DSB_GTT_FAULT_INT_STATUS) + drm_err(display->drm, "[CRTC:%d:%s] DSB %d GTT fault\n", + crtc->base.base.id, crtc->base.name, dsb_id); + if (errors & DSB_RSPTIMEOUT_INT_STATUS) + drm_err(display->drm, "[CRTC:%d:%s] DSB %d response timeout\n", + crtc->base.base.id, crtc->base.name, dsb_id); + if (errors & DSB_POLL_ERR_INT_STATUS) + drm_err(display->drm, "[CRTC:%d:%s] DSB %d poll error\n", + crtc->base.base.id, crtc->base.name, dsb_id); } -- 2.45.3
