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Commit 7dafc10c authored by Sunil Khatri's avatar Sunil Khatri
Browse files

msm: kgsl: Add property to determine GPU bitness 



Add the property to determine GPU bitness which
is used by the clients via KGSL ioctl.

Certain clients of KGSL such as Open-CL driver
need to know explicitly about the GPU mode.

Change-Id: I77523d7816edb9776014aaf3aa85321af0d20aaf
Signed-off-by: default avatarSunil Khatri <sunilkh@codeaurora.org>
parent d3068532

drivers/gpu/msm/adreno.c

+20 −0
Original line number Diff line number Diff line
@@ -1856,6 +1856,26 @@ static int adreno_getproperty(struct kgsl_device *device, 
		}

		status = 0;

		break;

	case KGSL_PROP_DEVICE_BITNESS:

	{

		unsigned int bitness = 32;



		if (sizebytes != sizeof(unsigned int)) {

			status = -EINVAL;

			break;

		}

		/* No of bits used by the GPU */

		if (adreno_support_64bit(adreno_dev))

			bitness = 48;



		if (copy_to_user(value, &bitness,

				sizeof(unsigned int))) {

			status = -EFAULT;

			break;

		}

		status = 0;

	}

	break;



	default:

		status = -EINVAL;

include/uapi/linux/msm_kgsl.h

+1 −0
Original line number Diff line number Diff line
@@ -307,6 +307,7 @@ enum kgsl_timestamp_type { 
#define KGSL_PROP_UCODE_VERSION		0x15

#define KGSL_PROP_GPMU_VERSION		0x16

#define KGSL_PROP_HIGHEST_BANK_BIT	0x17

#define KGSL_PROP_DEVICE_BITNESS	0x18



struct kgsl_shadowprop {

	unsigned long gpuaddr;