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Commit a2a12986 authored by Carter Cooper's avatar Carter Cooper
Browse files

msm: kgsl: Force OOB on during Adreno start 



Make sure power is on when starting the GPU. When the device
is started and initialized, clear the OOB to allow IFPC.

Change-Id: I34716cf2b9c9b185ac56b8e5a47eb24c366507e5
Signed-off-by: default avatarCarter Cooper <ccooper@codeaurora.org>
parent 3bd4eee5

drivers/gpu/msm/adreno.c

+18 −1
Original line number Diff line number Diff line
@@ -1481,6 +1481,15 @@ static int _adreno_start(struct adreno_device *adreno_dev) 
		goto error_mmu_off;

	}



	/* Send OOB request to turn on the GX */

	if (gpudev->oob_set) {

		status = gpudev->oob_set(adreno_dev, OOB_GPUSTART_SET_MASK,

				OOB_GPUSTART_CHECK_MASK,

				OOB_GPUSTART_CLEAR_MASK);

		if (status)

			goto error_mmu_off;

	}



	/* Enable 64 bit gpu addr if feature is set */

	if (gpudev->enable_64bit &&

			adreno_support_64bit(adreno_dev))
@@ -1562,7 +1571,7 @@ static int _adreno_start(struct adreno_device *adreno_dev) 


	status = adreno_ringbuffer_start(adreno_dev, ADRENO_START_COLD);

	if (status)

		goto error_mmu_off;

		goto error_oob_clear;



	/* Start the dispatcher */

	adreno_dispatcher_start(device);
@@ -1575,8 +1584,16 @@ static int _adreno_start(struct adreno_device *adreno_dev) 
		pm_qos_update_request(&device->pwrctrl.pm_qos_req_dma,

				pmqos_active_vote);



	/* Send OOB request to allow IFPC */

	if (gpudev->oob_clear)

		gpudev->oob_clear(adreno_dev, OOB_GPUSTART_CLEAR_MASK);



	return 0;



error_oob_clear:

	if (gpudev->oob_clear)

		gpudev->oob_clear(adreno_dev, OOB_GPUSTART_CLEAR_MASK);



error_mmu_off:

	kgsl_mmu_stop(&device->mmu);

drivers/gpu/msm/kgsl_gmu.h

+3 −0
Original line number Diff line number Diff line
@@ -73,6 +73,9 @@ 
#define OOB_PERFCNTR_SET_MASK		BIT(17)

#define OOB_PERFCNTR_CHECK_MASK		BIT(25)

#define OOB_PERFCNTR_CLEAR_MASK		BIT(25)

#define OOB_GPUSTART_SET_MASK		BIT(18)

#define OOB_GPUSTART_CHECK_MASK		BIT(26)

#define OOB_GPUSTART_CLEAR_MASK		BIT(26)



/* Bits for the flags field in the gmu structure */

enum gmu_flags {