diff options
author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-09-11 10:44:41 +0100 |
---|---|---|
committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-09-19 15:37:07 +0100 |
commit | 378f84f9cd2a76b8bfbf27c64533a7c8d8522644 (patch) | |
tree | 2e6e7eb40a1b3bbffa20ae44dca6dba90b789185 /tests/i915/gem_eio.c | |
parent | 77c53210779c30cfb8a4ca2312675fe5be94f4d5 (diff) |
i915/gem_eio: Race kms on/off vs reset
On older platforms, performing a GPU reset clobbers the display.
Exercise the interactions between reset/wedge and the display and
hopefully prevent any races creeping in.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Diffstat (limited to 'tests/i915/gem_eio.c')
-rw-r--r-- | tests/i915/gem_eio.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/tests/i915/gem_eio.c b/tests/i915/gem_eio.c index 9b086a03..e0213c76 100644 --- a/tests/i915/gem_eio.c +++ b/tests/i915/gem_eio.c @@ -42,6 +42,8 @@ #include "igt.h" #include "igt_device.h" +#include "igt_fb.h" +#include "igt_kms.h" #include "igt_stats.h" #include "igt_sysfs.h" #include "sw_sync.h" @@ -813,6 +815,67 @@ static void test_reset_stress(int fd, unsigned int flags) gem_context_destroy(fd, ctx0); } +/* + * Modesetting vs wedged + */ + +static void display_helper(igt_display_t *dpy, int *done) +{ + const int commit = dpy->is_atomic ? COMMIT_ATOMIC : COMMIT_LEGACY; + struct igt_fb fb = {}; + + while (!READ_ONCE(*done)) { + drmModeModeInfoPtr mode; + igt_plane_t *primary; + igt_output_t *output; + int pipe; + + pipe = rand() % dpy->n_pipes; + output = igt_get_single_output_for_pipe(dpy, pipe); + if (!output) + continue; + + igt_output_set_pipe(output, pipe); + mode = igt_output_get_mode(output); + + if (fb.width != mode->hdisplay || fb.height != mode->vdisplay) { + igt_remove_fb(dpy->drm_fd, &fb); + igt_create_pattern_fb(dpy->drm_fd, + mode->hdisplay, mode->vdisplay, + DRM_FORMAT_XRGB8888, + LOCAL_I915_FORMAT_MOD_X_TILED, + &fb); + } + + primary = igt_output_get_plane_type(output, + DRM_PLANE_TYPE_PRIMARY); + igt_plane_set_fb(primary, &fb); + + igt_display_commit2(dpy, commit); + igt_display_reset(dpy); + } + + igt_remove_fb(dpy->drm_fd, &fb); +} + +static void test_kms(int i915, igt_display_t *dpy) +{ + int *shared; + + shared = mmap(NULL, 4096, PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0); + igt_assert(shared != MAP_FAILED); + + igt_fork(child, 1) + display_helper(dpy, shared); + + test_reset_stress(i915, 0); + test_reset_stress(i915, TEST_WEDGE); + + *shared = 1; + igt_waitchildren(); + munmap(shared, 4096); +} + static int fd = -1; static void @@ -906,4 +969,20 @@ igt_main } } } + + igt_subtest_group { + igt_display_t display = { + .drm_fd = -1, .n_pipes = IGT_MAX_PIPES + }; + + igt_fixture { + igt_device_set_master(fd); + + igt_display_require(&display, fd); + igt_display_require_output(&display); + } + + igt_subtest("kms") + test_kms(fd, &display); + } } |