From 4ac277cd9dd0d796bbd647bbc6d9d0bfe2b1c015 Mon Sep 17 00:00:00 2001 From: Jordan Crouse Date: Mon, 28 Nov 2016 12:28:32 -0700 Subject: [PATCH] drm/msm: Disable interrupts during init Disable the interrupt during the init sequence to avoid having interrupts fired for errors and other things that we are not ready to handle while initializing. Signed-off-by: Jordan Crouse Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/adreno/adreno_device.c | 4 ++++ drivers/gpu/drm/msm/adreno/adreno_gpu.c | 3 +++ 2 files changed, 7 insertions(+) diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c index 7250ffc6322f..1fa1fdda9ee2 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_device.c +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c @@ -145,12 +145,16 @@ struct msm_gpu *adreno_load_gpu(struct drm_device *dev) mutex_lock(&dev->struct_mutex); gpu->funcs->pm_resume(gpu); mutex_unlock(&dev->struct_mutex); + + disable_irq(gpu->irq); + ret = gpu->funcs->hw_init(gpu); if (ret) { dev_err(dev->dev, "gpu hw init failed: %d\n", ret); gpu->funcs->destroy(gpu); gpu = NULL; } else { + enable_irq(gpu->irq); /* give inactive pm a chance to kick in: */ msm_gpu_retire(gpu); } diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 6684ba8fa9be..c3a4c53eb8b3 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -129,11 +129,14 @@ void adreno_recover(struct msm_gpu *gpu) adreno_gpu->memptrs->wptr = 0; gpu->funcs->pm_resume(gpu); + + disable_irq(gpu->irq); ret = gpu->funcs->hw_init(gpu); if (ret) { dev_err(dev->dev, "gpu hw init failed: %d\n", ret); /* hmm, oh well? */ } + enable_irq(gpu->irq); } void adreno_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit, -- 2.20.1