evie/android_kernel_oneplus_msm8998
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msm: kgsl: Add property to determine GPU bitness

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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: Sunil Khatri <sunilkh@codeaurora.org>
This commit is contained in:
Sunil Khatri 2016-04-29 09:29:46 -06:00 • committed by Jeevan Shriram
parent 6b8e9c2af6
commit f667066182
2 changed files with 21 additions and 0 deletions
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20
drivers/gpu/msm/adreno.c
View file

@ -1855,6 +1855,26 @@ 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;

1
include/uapi/linux/msm_kgsl.h
View file

@ -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;