Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:
> If we can't find the enable_execlists parameter, presume that the switch
> is forced by the kernel and enabled for all hw supporting execlists. We
> don't have a GETPARAM or ENGINE_INFO to query the internal details.
>
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
> ---
> lib/i915/gem_submission.c | 17 +++++++++--------
> 1 file changed, 9 insertions(+), 8 deletions(-)
>
> diff --git a/lib/i915/gem_submission.c b/lib/i915/gem_submission.c
> index 882d4f41..8bff4844 100644
> --- a/lib/i915/gem_submission.c
> +++ b/lib/i915/gem_submission.c
> @@ -28,6 +28,7 @@
>
> #include "igt_core.h"
> #include "igt_sysfs.h"
> +#include "intel_chipset.h"
>
> #include "i915/gem_submission.h"
>
> @@ -64,30 +65,30 @@ static bool has_semaphores(int fd, int dir)
> */
> unsigned gem_submission_method(int fd)
> {
> + const int gen = intel_gen(intel_get_drm_devid(fd));
> unsigned flags = 0;
> - bool active;
> + int result;
> +
> int dir;
>
> dir = igt_sysfs_open_parameters(fd);
> if (dir < 0)
> return 0;
>
> - active = igt_sysfs_get_boolean(dir, "enable_guc_submission");
> - if (active) {
> + if (igt_sysfs_get_boolean(dir, "enable_guc_submission")) {
> flags |= GEM_SUBMISSION_GUC | GEM_SUBMISSION_EXECLISTS;
> goto out;
> }
>
> - active = igt_sysfs_get_boolean(dir, "enable_execlists");
> - if (active) {
> + if (igt_sysfs_scanf(dir, "enable_execlists", "%d", &result) != 1)
> + result = gen >= 8;
> + if (result) {
> flags |= GEM_SUBMISSION_EXECLISTS;
> goto out;
> }
>
> - active = has_semaphores(fd, dir);
> - if (active) {
> + if (has_semaphores(fd, dir))
> flags |= GEM_SUBMISSION_SEMAPHORES;
> - }
>
> out:
> close(dir);
> --
> 2.15.0
>
> _______________________________________________
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> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
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