diff options
| -rw-r--r-- | tests/gem_exec_parse.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/tests/gem_exec_parse.c b/tests/gem_exec_parse.c index 004c3bff..455bfbf4 100644 --- a/tests/gem_exec_parse.c +++ b/tests/gem_exec_parse.c @@ -136,6 +136,60 @@ static int exec_batch(int fd, uint32_t cmd_bo, uint32_t *cmds, return 1; } +static int exec_split_batch(int fd, uint32_t *cmds, + int size, int ring, int expected_ret) +{ + struct drm_i915_gem_execbuffer2 execbuf; + struct drm_i915_gem_exec_object2 objs[1]; + uint32_t cmd_bo; + uint32_t noop[1024] = { 0 }; + int ret; + + // Allocate and fill a 2-page batch with noops + cmd_bo = gem_create(fd, 4096 * 2); + gem_write(fd, cmd_bo, 0, noop, sizeof(noop)); + gem_write(fd, cmd_bo, 4096, noop, sizeof(noop)); + + // Write the provided commands such that the first dword + // of the command buffer is the last dword of the first + // page (i.e. the command is split across the two pages). + gem_write(fd, cmd_bo, 4096-sizeof(uint32_t), cmds, size); + + objs[0].handle = cmd_bo; + objs[0].relocation_count = 0; + objs[0].relocs_ptr = 0; + objs[0].alignment = 0; + objs[0].offset = 0; + objs[0].flags = 0; + objs[0].rsvd1 = 0; + objs[0].rsvd2 = 0; + + execbuf.buffers_ptr = (uintptr_t)objs; + execbuf.buffer_count = 1; + execbuf.batch_start_offset = 0; + execbuf.batch_len = size; + execbuf.cliprects_ptr = 0; + execbuf.num_cliprects = 0; + execbuf.DR1 = 0; + execbuf.DR4 = 0; + execbuf.flags = ring; + i915_execbuffer2_set_context_id(execbuf, 0); + execbuf.rsvd2 = 0; + + ret = drmIoctl(fd, + DRM_IOCTL_I915_GEM_EXECBUFFER2, + &execbuf); + if (ret == 0) + igt_assert(expected_ret == 0); + else + igt_assert(-errno == expected_ret); + + gem_sync(fd, cmd_bo); + gem_close(fd, cmd_bo); + + return 1; +} + uint32_t handle; int fd; @@ -266,6 +320,20 @@ igt_main -EINVAL)); } + igt_subtest("cmd-crossing-page") { + uint32_t lri_ok[] = { + MI_LOAD_REGISTER_IMM, + 0x5280, // allowed register address (SO_WRITE_OFFSET[0]) + 0x1, + MI_BATCH_BUFFER_END, + }; + igt_assert( + exec_split_batch(fd, + lri_ok, sizeof(lri_ok), + I915_EXEC_RENDER, + 0)); + } + igt_fixture { gem_close(fd, handle); |