Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b5702b95 authored by Harshdeep Dhatt's avatar Harshdeep Dhatt
Browse files

msm: kgsl: Log the breadcrumb on GMU boot failure 



This helps with understanding how far the GMU boot process
went before encountering a problem.

Change-Id: Id6cf933ba4e00c355daa0edfbb3a9530cc21e3b0
Signed-off-by: default avatarHarshdeep Dhatt <hdhatt@codeaurora.org>
parent 7159e284

drivers/gpu/msm/adreno_a6xx_gmu.c

+10 −1
Original line number Diff line number Diff line
@@ -360,7 +360,16 @@ static int a6xx_gmu_start(struct kgsl_device *device) 
	if (timed_poll_check(device,

			A6XX_GMU_CM3_FW_INIT_RESULT,

			val, GMU_START_TIMEOUT, mask)) {

		dev_err(&gmu->pdev->dev, "GMU doesn't boot\n");

		u32 val;



		/*

		 * The breadcrumb is written to a gmu virtual mapping

		 * which points to dtcm byte offset 0x3fdc.

		 */

		gmu_core_regread(device,

			A6XX_GMU_CM3_DTCM_START + (0x3fdc >> 2), &val);

		dev_err(&gmu->pdev->dev, "GMU doesn't boot: 0x%x\n", val);



		return -ETIMEDOUT;

	}