[Intel-gfx] [PATCH i-g-t] Make force work with multiple drivers available
Petri Latvala
petri.latvala at intel.com
Mon Jan 14 10:52:07 UTC 2019
On Fri, Jan 11, 2019 at 11:13:37AM -0200, Rodrigo Siqueira wrote:
> The force option allows users to specify which driver they want that IGT
> uses. Nonetheless, if the user has two or more loaded drivers in his
> system, the force option will not work as expected because IGT will take
> the first driver found at /dev/dri. This problem can be reproduced in a
> QEMU VM that using Bochs and VKMS. This patch handles this scenario by
> ensuring that IGT uses the forced module specified via IGT_FORCE_DRIVER.
>
> Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo at gmail.com>
> ---
> lib/drmtest.c | 12 ++++++++----
> 1 file changed, 8 insertions(+), 4 deletions(-)
>
> diff --git a/lib/drmtest.c b/lib/drmtest.c
> index 35914c50..7c124ac6 100644
> --- a/lib/drmtest.c
> +++ b/lib/drmtest.c
> @@ -250,10 +250,8 @@ static int open_device(const char *name, unsigned int chipset)
> goto err;
>
> forced = forced_driver();
> - if (forced && chipset == DRIVER_ANY && !strcmp(forced, dev_name)) {
> - igt_debug("Force option used: Using driver %s\n", dev_name);
> - return fd;
> - }
> + if (forced && chipset == DRIVER_ANY && strcmp(forced, dev_name))
> + goto err;
Yep, an obvious logic error by me.
Reviewed-by: Petri Latvala <petri.latvala at intel.com>
and merging this momentarily.
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