Quoting Rodrigo Siqueira (2018-08-21 00:54:45)
> The kms_flip test does not support drivers without VBlank which exclude
> some virtual drivers. This patch adds a function that checks if a module
> has a VBlank or not; if a module has VBlank than kms_flip will execute
> all the VBlank tests, otherwise, VBlank tests will be skipped.
>
> Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@xxxxxxxxx>
> ---
> lib/igt_aux.c | 14 ++++++++++++++
> lib/igt_aux.h | 2 ++
> tests/kms_flip.c | 26 ++++++++++++++++++++++++--
> 3 files changed, 40 insertions(+), 2 deletions(-)
>
> diff --git a/lib/igt_aux.c b/lib/igt_aux.c
> index 1250d5c5..da5be4bb 100644
> --- a/lib/igt_aux.c
> +++ b/lib/igt_aux.c
> @@ -564,6 +564,20 @@ bool igt_aub_dump_enabled(void)
> return dump_aub;
> }
>
> +bool igt_there_is_vblank(int drm_fd)
I would suggest breaking out in the kms namespace,
bool kms_has_vblank(int fd);
> +{
> + drmVBlank dummy_vbl;
> + int ret;
> +
Either memset() the rest or use a named initializer.
> + dummy_vbl.request.type = DRM_VBLANK_ABSOLUTE;
> + ret = drmWaitVBlank(drm_fd, &dummy_vbl);
return drmWaitVblank() == 0;
-Chris
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