From f9f34d44c7d3cecd3e821d8a22d3fd88c972d0bf Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Sat, 8 Feb 2025 00:31:59 +0200 Subject: [PATCH] drm/i915/dsb: Decode DSB error interrupts MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Decode the DSB error interrupts into human readable form for easier debugging. Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20250207223159.14132-9-ville.syrjala@linux.intel.com Reviewed-by: Ankit Nautiyal --- 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 aba57ddfbb922..db69b1c676f7a 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); } -- 2.39.5