diff options
| -rw-r--r-- | tests/i915/gem_mmap_offset.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/tests/i915/gem_mmap_offset.c b/tests/i915/gem_mmap_offset.c index 23d26075f..82203bce4 100644 --- a/tests/i915/gem_mmap_offset.c +++ b/tests/i915/gem_mmap_offset.c @@ -574,6 +574,78 @@ static void always_clear(int i915, int timeout) igt_info("Checked %'lu page allocations\n", checked); } +static struct intel_buf *create_bo(struct buf_ops *bops, uint32_t value, + uint32_t width, uint32_t height) +{ + int i915 = buf_ops_get_fd(bops); + struct intel_buf *buf; + uint32_t *v, size; + + buf = intel_buf_create(bops, width, height, 32, 0, I915_TILING_NONE, 0); + size = buf->surface[0].size; + v = gem_mmap__cpu_coherent(i915, buf->handle, 0, size, PROT_WRITE); + + gem_set_domain(i915, buf->handle, + I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU); + + for (int i = 0; i < 64 / sizeof(*v); i++) + v[i] = value; + + munmap(buf, size); + + return buf; +} + +static void blt_coherency(int i915) +{ + struct buf_ops *bops; + struct intel_buf *src, *dst; + struct intel_bb *ibb; + uint32_t width = 512; + uint32_t height = 512; + uint32_t *psrc, *pdst, size; + bool compare_ok; + int i; + + bops = buf_ops_create(i915); + ibb = intel_bb_create(i915, 4096); + + src = create_bo(bops, 2, width, height); + dst = create_bo(bops, 1, width, height); + size = src->surface[0].size; + + intel_bb_add_object(ibb, src->handle, src->addr.offset, false); + intel_bb_add_object(ibb, dst->handle, dst->addr.offset, true); + + intel_bb_blt_copy(ibb, + src, 0, 0, src->surface[0].stride, + dst, 0, 0, dst->surface[0].stride, + intel_buf_width(dst), + intel_buf_height(dst), dst->bpp); + + psrc = gem_mmap__cpu_coherent(i915, src->handle, 0, size, PROT_READ); + gem_set_domain(i915, src->handle, I915_GEM_DOMAIN_CPU, 0); + + pdst = gem_mmap__cpu_coherent(i915, dst->handle, 0, size, PROT_READ); + gem_set_domain(i915, dst->handle, I915_GEM_DOMAIN_CPU, 0); + + for (i = 0; i < 16; i++) + igt_debug("[%2d] %08x <> %08x\n", i, psrc[i], pdst[i]); + + compare_ok = psrc[0] == pdst[0]; + + munmap(psrc, size); + munmap(pdst, size); + + intel_buf_destroy(src); + intel_buf_destroy(dst); + + intel_bb_destroy(ibb); + buf_ops_destroy(bops); + + igt_assert_f(compare_ok, "Problem with coherency, flush is too late\n"); +} + static int mmap_gtt_version(int i915) { int gtt_version = -1; @@ -630,6 +702,9 @@ igt_main igt_subtest_f("clear") always_clear(i915, 20); + igt_subtest_f("blt-coherency") + blt_coherency(i915); + igt_fixture { close(i915); } |