On Fri, Jul 28, 2017 at 01:08:05PM +0100, Chris Wilson wrote:
> Ensure that we can suspend the GPU even if it is currently busy in an
> indefinite loop, requiring us to declare the task hung.
Missing sign-off.
> ---
> tests/gem_exec_suspend.c | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/tests/gem_exec_suspend.c b/tests/gem_exec_suspend.c
> index 763cb108..bcb0e089 100644
> --- a/tests/gem_exec_suspend.c
> +++ b/tests/gem_exec_suspend.c
> @@ -29,6 +29,7 @@
>
> #include "igt.h"
> #include "igt_gt.h"
> +#include "igt_dummyload.h"
>
> #define NOSLEEP 0
> #define SUSPEND_DEVICES 1
> @@ -44,6 +45,7 @@
>
> #define UNCACHED (0<<8)
> #define CACHED (1<<8)
> +#define HANG (2<<8)
>
> static void run_test(int fd, unsigned ring, unsigned flags);
>
> @@ -105,6 +107,7 @@ static void run_test(int fd, unsigned engine, unsigned flags)
> struct drm_i915_gem_execbuffer2 execbuf;
> unsigned engines[16];
> unsigned nengine;
> + igt_spin_t *spin = NULL;
>
> nengine = 0;
> if (engine == -1) {
> @@ -197,6 +200,9 @@ static void run_test(int fd, unsigned engine, unsigned flags)
> gem_close(fd, obj[1].handle);
> }
>
> + if (flags & HANG)
> + spin = igt_spin_batch_new(fd, 0, engine, 0);
Typo? Using different tree? (3 args here)
Other than that, lgtm:
Reviewed-by: Michał Winiarski <michal.winiarski@xxxxxxxxx>
-Michał
> +
> switch (mode(flags)) {
> case NOSLEEP:
> break;
> @@ -222,6 +228,8 @@ static void run_test(int fd, unsigned engine, unsigned flags)
> break;
> }
>
> + igt_spin_batch_free(fd, spin);
> +
> check_bo(fd, obj[0].handle);
> gem_close(fd, obj[0].handle);
>
> @@ -244,6 +252,7 @@ igt_main
> { NULL, 0 }
> }, *m;
> const struct intel_execution_engine *e;
> + igt_hang_t hang;
> int fd;
>
> igt_fixture {
> @@ -278,6 +287,16 @@ igt_main
>
> igt_fixture {
> igt_stop_hang_detector();
> + hang = igt_allow_hang(fd, 0, 0);
> + }
> +
> + igt_subtest("hang-S3")
> + run_test(fd, 0, SUSPEND | HANG);
> + igt_subtest("hang-S4")
> + run_test(fd, 0, HIBERNATE | HANG);
> +
> + igt_fixture {
> + igt_disallow_hang(fd, hang);
> close(fd);
> }
> }
> --
> 2.13.3
>
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