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Commit 09dd55fa authored by Harshdeep Dhatt's avatar Harshdeep Dhatt Committed by Gerrit - the friendly Code Review server
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msm: kgsl: Profile scm call on a640v1 



Log an error message if scm call takes more
than 2 seconds on a640v1. This helps to root
cause fence timeouts seen on a640v1.

Change-Id: If51c3c8c878f97a5b686be1f0c15bb5c6284dffe
Signed-off-by: default avatarHarshdeep Dhatt <hdhatt@codeaurora.org>
parent ce9c09a2

drivers/gpu/msm/adreno.c

+16 −8
Original line number Diff line number Diff line
@@ -1824,16 +1824,24 @@ static int _adreno_start(struct adreno_device *adreno_dev) 
	if (regulator_left_on)

		_soft_reset(adreno_dev);



	if ((adreno_is_a640v1(adreno_dev)) &&

		scm_is_call_available(SCM_SVC_MP, CP_SMMU_APERTURE_ID)) {



	if (adreno_is_a640v1(adreno_dev)) {

		unsigned long start = jiffies;



		if (scm_is_call_available(SCM_SVC_MP, CP_SMMU_APERTURE_ID)) {

			ret = kgsl_program_smmu_aperture();

			/* Log it if it takes more than 2 seconds */

			if (((jiffies - start) / HZ) > 2)

				dev_err(device->dev, "scm call took too long to finish on a640v1: %lu seconds\n",

					((jiffies - start) / HZ));

			if (ret) {

			dev_err(device->dev,

				"SMMU aperture programming call failed with error %d\n",

				dev_err(device->dev, "SMMU aperture programming call failed with error %d\n",

					ret);

				goto error_pwr_off;

			}

		}

	}



	adreno_ringbuffer_set_global(adreno_dev, 0);



	status = kgsl_mmu_start(device);