[igt-dev] [PATCH i-g-t v2 1/1] tests/i915/pxp: PXP debugfs path promoted to global

[Dixit, Ashutosh]

On Thu, 15 Dec 2022 09:43:33 -0800, Alan Previn wrote:
>
> As per recent kernel side update in preparation for
> MTL, PXP is now a global i915 subsystem so let's update
> the debugfs path to try both the legacy and new paths
> before we fail.
>
> Changes from prior rev:
>    v1: - Fix a comment (Daniele)

I went ahead and merged this. Thanks for the patch :)

>
> Signed-off-by: Alan Previn <alan.previn.teres.alexis at intel.com>
> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
> ---
>  tests/i915/gem_pxp.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/tests/i915/gem_pxp.c b/tests/i915/gem_pxp.c
> index ffad9b5a..41043df9 100644
> --- a/tests/i915/gem_pxp.c
> +++ b/tests/i915/gem_pxp.c
> @@ -848,6 +848,14 @@ static void trigger_pxp_debugfs_forced_teardown(int i915)
>	char str[32];
>
>	fd = igt_debugfs_open(i915, "gt/pxp/terminate_state", O_RDWR);
> +	/*
> +	 * On newer kernels, we promoted PXP to be a global i915 subsystem,
> +	 * so try again with a top-level path if we failed at the gt path.
> +	 * If we still fail, then we assert out.
> +	 */
> +	if (fd < 0)
> +		fd = igt_debugfs_open(i915, "pxp/terminate_state", O_RDWR);
> +
>	igt_assert_f(fd >= 0, "Can't open pxp termination debugfs\n");
>	ret = snprintf(str, sizeof(str), "0x1");
>	igt_assert(ret > 2 && ret < sizeof(str));
>
> base-commit: c001793d5f22deb01918b6ba52af829794582df1
> --
> 2.34.1
>