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Commit 2d6f044f authored by Akhil P Oommen's avatar Akhil P Oommen Committed by Gerrit - the friendly Code Review server
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msm: kgsl: Fix preemption fault handling for A6xx GPU 



In preemption fault handler, check only the STOP bit of
ADRENO_REG_CP_PREEMPT register to see if the preemption is complete.

Change-Id: Id1f2d0947412e996d6028558124c3e528527cec6
Signed-off-by: default avatarAkhil P Oommen <akhilpo@codeaurora.org>
Signed-off-by: default avatarSebanti Das <sebadas@codeaurora.org>
parent f69d3db0

drivers/gpu/msm/adreno_a6xx_preempt.c

+2 −2
Original line number Diff line number Diff line
@@ -139,7 +139,7 @@ static void _a6xx_preemption_fault(struct adreno_device *adreno_dev) 
	if (kgsl_state_is_awake(device)) {

		kgsl_regread(device, A6XX_CP_CONTEXT_SWITCH_CNTL, &status);



		if (status == 0) {

		if (!(status & 0x1)) {

			adreno_set_preempt_state(adreno_dev,

				ADRENO_PREEMPT_COMPLETE);
@@ -149,7 +149,7 @@ static void _a6xx_preemption_fault(struct adreno_device *adreno_dev) 
	}



	dev_err(device->dev,

		     "Preemption timed out: cur=%d R/W=%X/%X, next=%d R/W=%X/%X\n",

		     "Preemption Fault: cur=%d R/W=0x%x/0x%x, next=%d R/W=0x%x/0x%x\n",

		     adreno_dev->cur_rb->id,

		     adreno_get_rptr(adreno_dev->cur_rb),

		     adreno_dev->cur_rb->wptr,