[Intel-gfx] [PATCH v4] igt/gem_trtt: Exercise the TRTT hardware

[Michel Thierry]

On 3/9/2016 11:31 AM, akash.goel at intel.com wrote:
> From: Akash Goel <akash.goel at intel.com>
>
> This patch provides the testcase to exercise the TRTT hardware.
>
...
> --- /dev/null
> +++ b/tests/gem_trtt.c
> @@ -0,0 +1,498 @@
...
> +
> +/* gen8_canonical_addr
> + * Used to convert any address into canonical form, i.e. [63:48] == [47].
> + * Based on kernel's sign_extend64 implementation.
> + * @address - a virtual address
> + */
> +#define GEN8_HIGH_ADDRESS_BIT 47
> +static uint64_t gen8_canonical_addr(uint64_t address)
> +{
> +	__u8 shift = 63 - GEN8_HIGH_ADDRESS_BIT;
> +	return (__s64)(address << shift) >> shift;
> +}

^^^ These came from gem_softpin, didnt they?
[https://cgit.freedesktop.org/xorg/app/intel-gpu-tools/commit/?id=7cb35109645e6495f67981b9930587c1ddfe4f90]

Would you consider moving them to lib/?
(I think igt_aux is a good place).