[Intel-gfx] [i-g-t PATCH v8 5/5] igt/kms_busy.c: Use new igt_spin_batch

[Tomeu Vizoso]

Looks good to me.

Reviewed-by: Tomeu Vizoso <tomeu.vizoso at collabora.com>

Cheers,

Tomeu

On 21 November 2016 at 10:25, Abdiel Janulgue
<abdiel.janulgue at linux.intel.com> wrote:
> v7: Adapt to api rename
> v8: Tidy up finish_fb_busy (Chris Wilson)
>
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
> Signed-off-by: Abdiel Janulgue <abdiel.janulgue at linux.intel.com>
> ---
>  tests/kms_busy.c | 81 +++++---------------------------------------------------
>  1 file changed, 6 insertions(+), 75 deletions(-)
>
> diff --git a/tests/kms_busy.c b/tests/kms_busy.c
> index b555f99..8a8a3eb 100644
> --- a/tests/kms_busy.c
> +++ b/tests/kms_busy.c
> @@ -78,80 +78,11 @@ static void do_cleanup_display(igt_display_t *dpy)
>         igt_display_commit2(dpy, dpy->is_atomic ? COMMIT_ATOMIC : COMMIT_LEGACY);
>  }
>
> -static uint32_t *
> -make_fb_busy(igt_display_t *dpy, unsigned ring, const struct igt_fb *fb)
> -{
> -       const int gen = intel_gen(intel_get_drm_devid(dpy->drm_fd));
> -       struct drm_i915_gem_exec_object2 obj[2];
> -#define SCRATCH 0
> -#define BATCH 1
> -       struct drm_i915_gem_relocation_entry reloc[2];
> -       struct drm_i915_gem_execbuffer2 execbuf;
> -       uint32_t *batch;
> -       int i;
> -
> -       memset(&execbuf, 0, sizeof(execbuf));
> -       execbuf.buffers_ptr = (uintptr_t)obj;
> -       execbuf.buffer_count = 2;
> -       execbuf.flags = ring;
> -
> -       memset(obj, 0, sizeof(obj));
> -       obj[SCRATCH].handle = fb->gem_handle;
> -
> -       obj[BATCH].handle = gem_create(dpy->drm_fd, 4096);
> -       obj[BATCH].relocs_ptr = (uintptr_t)reloc;
> -       obj[BATCH].relocation_count = 2;
> -       memset(reloc, 0, sizeof(reloc));
> -       reloc[0].target_handle = obj[BATCH].handle; /* recurse */
> -       reloc[0].presumed_offset = 0;
> -       reloc[0].offset = sizeof(uint32_t);
> -       reloc[0].delta = 0;
> -       reloc[0].read_domains = I915_GEM_DOMAIN_COMMAND;
> -       reloc[0].write_domain = 0;
> -
> -       batch = gem_mmap__wc(dpy->drm_fd,
> -                            obj[BATCH].handle, 0, 4096, PROT_WRITE);
> -       gem_set_domain(dpy->drm_fd, obj[BATCH].handle,
> -                      I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
> -
> -       batch[i = 0] = MI_BATCH_BUFFER_START;
> -       if (gen >= 8) {
> -               batch[i] |= 1 << 8 | 1;
> -               batch[++i] = 0;
> -               batch[++i] = 0;
> -       } else if (gen >= 6) {
> -               batch[i] |= 1 << 8;
> -               batch[++i] = 0;
> -       } else {
> -               batch[i] |= 2 << 6;
> -               batch[++i] = 0;
> -               if (gen < 4) {
> -                       batch[i] |= 1;
> -                       reloc[0].delta = 1;
> -               }
> -       }
> -
> -       /* dummy write to fb */
> -       reloc[1].target_handle = obj[SCRATCH].handle;
> -       reloc[1].presumed_offset = 0;
> -       reloc[1].offset = 1024;
> -       reloc[1].delta = 0;
> -       reloc[1].read_domains = I915_GEM_DOMAIN_RENDER;
> -       reloc[1].write_domain = I915_GEM_DOMAIN_RENDER;
> -
> -       gem_execbuf(dpy->drm_fd, &execbuf);
> -       gem_close(dpy->drm_fd, obj[BATCH].handle);
> -
> -       return batch;
> -}
> -
> -static void finish_fb_busy(uint32_t *batch, int msecs)
> +static void finish_fb_busy(igt_spin_t *spin, int msecs)
>  {
>         struct timespec tv = { 0, msecs * 1000 * 1000 };
>         nanosleep(&tv, NULL);
> -       batch[0] = MI_BATCH_BUFFER_END;
> -       __sync_synchronize();
> -       munmap(batch, 4096);
> +       igt_spin_batch_exit(spin);
>  }
>
>  static void sighandler(int sig)
> @@ -165,9 +96,8 @@ static void flip_to_fb(igt_display_t *dpy, int pipe,
>         struct pollfd pfd = { .fd = dpy->drm_fd, .events = POLLIN };
>         struct timespec tv = { 1, 0 };
>         struct drm_event_vblank ev;
> -       uint32_t *batch;
> -
> -       batch = make_fb_busy(dpy, ring, fb);
> +       igt_spin_t *t = igt_spin_batch_new(dpy->drm_fd, -1,
> +                                     ring, fb->gem_handle);
>         igt_fork(child, 1) {
>                 igt_assert(gem_bo_busy(dpy->drm_fd, fb->gem_handle));
>                 do_or_die(drmModePageFlip(dpy->drm_fd,
> @@ -179,7 +109,8 @@ static void flip_to_fb(igt_display_t *dpy, int pipe,
>         }
>         igt_assert_f(nanosleep(&tv, NULL) == -1,
>                      "flip to %s blocked waiting for busy fb", name);
> -       finish_fb_busy(batch, 2*TIMEOUT);
> +       finish_fb_busy(t, 2*TIMEOUT);
> +       igt_spin_batch_free(dpy->drm_fd, t);
>         igt_waitchildren();
>         igt_assert(read(dpy->drm_fd, &ev, sizeof(ev)) == sizeof(ev));
>         igt_assert(poll(&pfd, 1, 0) == 0);
> --
> 2.7.4
>
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