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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 <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Jordan Crouse 2016-11-28 12:28:32 -07:00 committed by Rob Clark
parent 89d777a572
commit 4ac277cd9d
2 changed files with 7 additions and 0 deletions
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4
drivers/gpu/drm/msm/adreno/adreno_device.c
View File

@ -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);
}

3
drivers/gpu/drm/msm/adreno/adreno_gpu.c
View File

@ -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,