[igt-dev] [PATCH i-g-t 7/7] benchmarks/gem_exec_fault: Add softpin mode to support gens with ppgtt

Dixit, Ashutosh ashutosh.dixit at intel.com
Thu Oct 14 20:07:37 UTC 2021


On Thu, 14 Oct 2021 01:19:17 -0700, Zbigniew Kempczyński wrote:
>
> @@ -127,9 +151,14 @@ static int loop(uint64_t size, unsigned ring, int reps, int ncpus,
>					obj.alignment = 0;
>					gem_execbuf(fd, &execbuf);
>
> -					/* fault out */
> -					obj.alignment = 1ull << 63;
> -					__gem_execbuf(fd, &execbuf);
> +					if (ahnd) {
> +						obj.offset = get_offset(ahnd, obj.handle, size, 0);
> +						obj.flags |= EXEC_OBJECT_PINNED | EXEC_OBJECT_SUPPORTS_48B_ADDRESS;
> +					} else {
> +						/* fault out */
> +						obj.alignment = 1ull << 63;
> +						__gem_execbuf(fd, &execbuf);
> +					}

Bug above, __gem_execbuf should be moved out of the else {}.

With the bug fixed this is:

Reviewed-by: Ashutosh Dixit <ashutosh.dixit at intel.com>


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