From 06d9f56f1d9aed065c18ffb48ea51901886afba9 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Sat, 5 Nov 2016 11:08:12 -0400 Subject: drm/msm: module param to dump state on error irq Signed-off-by: Rob Clark Signed-off-by: Sean Paul Link: http://patchwork.freedesktop.org/patch/msgid/1478358492-30738-8-git-send-email-robdclark@gmail.com --- drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c') diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c index d53e551..5c5940d 100644 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c @@ -17,6 +17,8 @@ #include +#include + #include "msm_drv.h" #include "mdp5_kms.h" @@ -30,7 +32,16 @@ void mdp5_set_irqmask(struct mdp_kms *mdp_kms, uint32_t irqmask, static void mdp5_irq_error_handler(struct mdp_irq *irq, uint32_t irqstatus) { + struct mdp5_kms *mdp5_kms = container_of(irq, struct mdp5_kms, error_handler); + static DEFINE_RATELIMIT_STATE(rs, 5*HZ, 1); + extern bool dumpstate; + DRM_ERROR_RATELIMITED("errors: %08x\n", irqstatus); + + if (dumpstate && __ratelimit(&rs)) { + struct drm_printer p = drm_info_printer(mdp5_kms->dev->dev); + drm_state_dump(mdp5_kms->dev, &p); + } } void mdp5_irq_preinstall(struct msm_kms *kms) -- cgit v1.1