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Commit fcc3d9de authored by Sunil Khatri's avatar Sunil Khatri
Browse files

msm: kgsl: Add a property to find if secure context is supported 



Add a property to determine if a target support secure context
for use cases like CPZ.

This property can be used by userspace application to create
a secure context if its supported on the target.

Change-Id: I1ccc824378fb8fbd2cfbc7b811c6c3fdcd17803e
Signed-off-by: default avatarSunil Khatri <sunilkh@codeaurora.org>
parent a27454c8

drivers/gpu/msm/kgsl.c

+17 −0
Original line number Diff line number Diff line
@@ -1384,6 +1384,23 @@ long kgsl_ioctl_device_getproperty(struct kgsl_device_private *dev_priv, 


		break;

	}

	case KGSL_PROP_SECURE_CTXT_SUPPORT:

	{

		unsigned int secure_ctxt;



		if (param->sizebytes != sizeof(unsigned int)) {

			result = -EINVAL;

			break;

		}



		secure_ctxt = dev_priv->device->mmu.secured ? 1 : 0;



		if (copy_to_user(param->value, &secure_ctxt,

				sizeof(secure_ctxt)))

			result = -EFAULT;



		break;

	}

	default:

		if (is_compat_task())

			result = dev_priv->device->ftbl->getproperty_compat(

include/uapi/linux/msm_kgsl.h

+1 −0
Original line number Diff line number Diff line
@@ -312,6 +312,7 @@ enum kgsl_timestamp_type { 
#define KGSL_PROP_DEVICE_BITNESS	0x18

#define KGSL_PROP_DEVICE_QDSS_STM	0x19

#define KGSL_PROP_SECURE_BUFFER_ALIGNMENT 0x23

#define KGSL_PROP_SECURE_CTXT_SUPPORT 0x24



struct kgsl_shadowprop {

	unsigned long gpuaddr;