diff options
Diffstat (limited to 'tests/gem_cpu_concurrent_blit.c')
| -rw-r--r-- | tests/gem_cpu_concurrent_blit.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/tests/gem_cpu_concurrent_blit.c b/tests/gem_cpu_concurrent_blit.c index ff18f15..fd517d0 100644 --- a/tests/gem_cpu_concurrent_blit.c +++ b/tests/gem_cpu_concurrent_blit.c @@ -93,7 +93,7 @@ main(int argc, char **argv) drm_intel_bufmgr *bufmgr; struct intel_batchbuffer *batch; int num_buffers = 128, max; - drm_intel_bo *src[128], *dst[128]; + drm_intel_bo *src[128], *dst[128], *dummy; int width = 512, height = 512; int fd; int i; @@ -112,6 +112,7 @@ main(int argc, char **argv) src[i] = create_bo(bufmgr, i, width, height); dst[i] = create_bo(bufmgr, ~i, width, height); } + dummy = create_bo(bufmgr, 0, width, height); /* try to overwrite the source values */ for (i = 0; i < num_buffers; i++) @@ -127,5 +128,15 @@ main(int argc, char **argv) for (i = num_buffers; i--; ) cmp_bo(dst[i], 0xdeadbeef, width, height); + /* and finally try to trick the kernel into loosing the pending write */ + for (i = num_buffers; i--; ) + set_bo(src[i], 0xabcdabcd, width, height); + for (i = 0; i < num_buffers; i++) + intel_copy_bo(batch, dst[i], src[i], width, height); + for (i = num_buffers; i--; ) + intel_copy_bo(batch, dummy, dst[i], width, height); + for (i = num_buffers; i--; ) + cmp_bo(dst[i], 0xabcdabcd, width, height); + return 0; } |