From: Brad Volkin <bradley.d.volkin@xxxxxxxxx>
The size of the batch buffer passed to the kernel is significantly
larger than the size of the batch buffer passed to the function. A
proposed optimization as part of the batch copy kernel series is to
use batch_len for the copy and parse operations, which leads to a
false "batch without MI_BATCH_BUFFER_END" failure for this test.
Signed-off-by: Brad Volkin <bradley.d.volkin@xxxxxxxxx>
---
tests/gem_exec_parse.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/tests/gem_exec_parse.c b/tests/gem_exec_parse.c
index 05f271c..568bd4a 100644
--- a/tests/gem_exec_parse.c
+++ b/tests/gem_exec_parse.c
@@ -144,9 +144,10 @@ static void exec_split_batch(int fd, uint32_t *cmds,
struct drm_i915_gem_exec_object2 objs[1];
uint32_t cmd_bo;
uint32_t noop[1024] = { 0 };
+ const int alloc_size = 4096 * 2;
// Allocate and fill a 2-page batch with noops
- cmd_bo = gem_create(fd, 4096 * 2);
+ cmd_bo = gem_create(fd, alloc_size);
gem_write(fd, cmd_bo, 0, noop, sizeof(noop));
gem_write(fd, cmd_bo, 4096, noop, sizeof(noop));
@@ -167,7 +168,7 @@ static void exec_split_batch(int fd, uint32_t *cmds,
execbuf.buffers_ptr = (uintptr_t)objs;
execbuf.buffer_count = 1;
execbuf.batch_start_offset = 0;
- execbuf.batch_len = size;
+ execbuf.batch_len = alloc_size;
execbuf.cliprects_ptr = 0;
execbuf.num_cliprects = 0;
execbuf.DR1 = 0;
--
1.9.1
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