Since an access violation won't return an error to userspace for v >= 8
of the command parser this updates the cmd-crossing-page test to
explicitly read back from SO_WRITE_OFFSET[0] to see that the command
wasn't squashed to a NOOP.
Signed-off-by: Robert Bragg <robert@xxxxxxxxxxxxx>
---
tests/gem_exec_parse.c | 15 +++++++++++++--
1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/tests/gem_exec_parse.c b/tests/gem_exec_parse.c
index 1aa5114..d6a2885 100644
--- a/tests/gem_exec_parse.c
+++ b/tests/gem_exec_parse.c
@@ -499,14 +499,25 @@ igt_main
igt_subtest("cmd-crossing-page") {
uint32_t lri_ok[] = {
MI_LOAD_REGISTER_IMM,
- 0x5280, /* allowed register address (SO_WRITE_OFFSET[0]) */
- 0x1,
+ SO_WRITE_OFFSET_0, /* allowed register address */
+ 0xdcbaabc0, /* [1:0] MBZ */
+ MI_BATCH_BUFFER_END,
+ };
+ uint32_t store_reg[] = {
+ MI_STORE_REGISTER_MEM | (3 - 2),
+ SO_WRITE_OFFSET_0,
+ 0, /* reloc */
MI_BATCH_BUFFER_END,
};
exec_split_batch(fd,
lri_ok, sizeof(lri_ok),
I915_EXEC_RENDER,
0);
+ exec_batch_patched(fd, handle,
+ store_reg,
+ sizeof(store_reg),
+ 2 * sizeof(uint32_t), /* reloc */
+ 0xdcbaabc0);
}
igt_subtest("oacontrol-tracking") {
--
2.10.1
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