tests/gem_exec_store: Verify all readsstore_dword

Verify all reads and report the offsets to observe
address patterns.

Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>

1 files changed, 17 insertions, 1 deletions

diff --git a/tests/gem_exec_store.c b/tests/gem_exec_store.c
index f624c78a..d0bb5750 100644
--- a/tests/gem_exec_store.c
+++ b/tests/gem_exec_store.c
@@ -154,6 +154,7 @@ static void store_cachelines(int fd, unsigned ring, unsigned int flags)
 #define NCACHELINES (4096/64)
 	uint32_t *batch;
 	int i;
+	unsigned long writes = 0, reads_verified = 0;
 
 	if (flags & HANG)
 		hang_ring(fd, ring);
@@ -204,6 +205,8 @@ static void store_cachelines(int fd, unsigned ring, unsigned int flags)
 		}
 		batch[++i] = n | ~n << 16;
 		i++;
+
+		writes++;
 	}
 	batch[i++] = MI_BATCH_BUFFER_END;
 	igt_assert(i < 4096 / sizeof(*batch));
@@ -211,16 +214,29 @@ static void store_cachelines(int fd, unsigned ring, unsigned int flags)
 	gem_execbuf(fd, &execbuf);
 
 	for (unsigned n = 0; n < NCACHELINES; n++) {
+		const int oi = n % (execbuf.buffer_count - 1);
 		uint32_t result;
+		bool read_ok;
 
 		gem_read(fd, reloc[n].target_handle, reloc[n].delta,
 			 &result, sizeof(result));
 
-		igt_assert_eq_u32(result, n | ~n << 16);
+		read_ok = result == (n | ~n << 16);
+		if (read_ok)
+			reads_verified++;
+
+		igt_info("%d: 0x%x %s 0x%x, addr 0x%llx\n",
+			 n,
+			 result,
+			 read_ok ? "==" : "!=",
+			 (n | ~n << 16),
+			 obj[oi].offset);
 	}
 
 	for (unsigned n = 0; n < execbuf.buffer_count; n++)
 		gem_close(fd, obj[n].handle);
+
+	igt_assert_eq(writes, reads_verified);
 	igt_assert_eq(intel_detect_and_clear_missed_interrupts(fd), 0);
 }