Re: [igt-dev] [PATCH i-g-t v2] Add Arm drivers as supported drivers by igt.

Daniel Vetter
2019-06-20T12:36:40Z

On Wed, Jun 19, 2019 at 04:13:58PM +0100, Liviu Dudau wrote:
> Add the drivers maintained by Arm developers to the igt.
>
> v2: Order the modules array entries alphabetically, as per
> Petri Latvala's suggestion.
>
> Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>

Still kinda wondering why you need this here ... kms is supposed to be
hw/driver agnostic, so DRIVER_ANY should work.

Maybe you want to check specific constraints in your tests, but then we
need something like igt_require(is_komeda_driver(fd)); which can inspect
what you're actually running on when the test executes.

The drivers in this list thus far are all about exercising the gem side of
things, where you _really_ don't want to open random garbage. Because the
ioctls aren't even defined.

On kms all ioctls are cross-driver, and only once you've opened something
does it make sense to check for features and stuff (looking at properties,
or getcap flags, or whatever).

Cheers, Daniel

PS: Yes I know that some of the DRIVER_I915 | DRIVER_AMDGPU tests really
should have been converted to DRIVER_ANY instead. I didn't catch that in
review way back, but I think I explained to Harry et al meanwhile ...

> ---
> lib/drmtest.c | 3 +++
> lib/drmtest.h | 4 ++++
> 2 files changed, 7 insertions(+)
>
> diff --git a/lib/drmtest.c b/lib/drmtest.c
> index 25f203530..17bb87d1f 100644
> --- a/lib/drmtest.c
> +++ b/lib/drmtest.c
> @@ -205,7 +205,10 @@ static const struct module {
> void (*modprobe)(const char *name);
> } modules[] = {
> { DRIVER_AMDGPU, "amdgpu" },
> + { DRIVER_HDLCD, "hdlcd" },
> { DRIVER_INTEL, "i915", modprobe_i915 },
> + { DRIVER_KOMEDA, "komeda" },
> + { DRIVER_MALIDP, "mali_dp" },
> { DRIVER_PANFROST, "panfrost" },
> { DRIVER_V3D, "v3d" },
> { DRIVER_VC4, "vc4" },
> diff --git a/lib/drmtest.h b/lib/drmtest.h
> index 6c4c3899c..952f0c4b6 100644
> --- a/lib/drmtest.h
> +++ b/lib/drmtest.h
> @@ -45,6 +45,10 @@
> #define DRIVER_AMDGPU (1 << 4)
> #define DRIVER_V3D (1 << 5)
> #define DRIVER_PANFROST (1 << 6)
> +#define DRIVER_HDLCD (1 << 7)
> +#define DRIVER_MALIDP (1 << 8)
> +#define DRIVER_KOMEDA (1 << 9)
> +
> /*
> * Exclude DRVER_VGEM from DRIVER_ANY since if you run on a system
> * with vgem as well as a supported driver, you can end up with a
> --
> 2.22.0
>
> _______________________________________________
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> igt-dev@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/igt-dev

--
Daniel Vetter
Software Engineer, Intel Corporation