Il 02/03/22 18:27, Akhil P Oommen ha scritto:
Retry infinitely on resume failure because there is nothing much we can do if GPU is not ON. Also, this helps us to avoid checking for the return value of pm_runtime_get() to see if GPU is ON.
Signed-off-by: Akhil P Oommen quic_akhilpo@quicinc.com
drivers/gpu/drm/msm/adreno/adreno_device.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c index 89cfd84..abcc553 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_device.c +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c @@ -603,8 +603,16 @@ static const struct of_device_id dt_match[] = { static int adreno_resume(struct device *dev) { struct msm_gpu *gpu = dev_to_gpu(dev);
- int ret;
- /* What hope do we have for the future if we can't turn ON gpu */
Hello Akhil,
the hope for the future would be to at least not lock up everything with an infinite loop, so, please change this to have a limited amount of retries.
My guess would be that a maximum of 10 is already a lot of retries, but feel free to choose an appropriate number.
Regards, Angelo
- while (true) {
ret = gpu->funcs->pm_resume(gpu);if (!ret)break;- }
- return gpu->funcs->pm_resume(gpu);
return 0; }
static int active_submits(struct msm_gpu *gpu)