[PATCH i-g-t 2/2] tests/intel/xe_oa: Replace hardcoded OA buffer size assumptions

[Sai Teja Pottumuttu <sai.teja.pottumuttu@intel.com>]

A few xe_oa tests assumed that the default OA buffer size is 16MB
and had calculations around it. These would fail if the default
buffer size is changed on the kernel side.

Replace such assumptions with the OA buffer size we get from
DRM_XE_OBSERVATION_IOCTL_INFO ioctl

Signed-off-by: Sai Teja Pottumuttu <sai.teja.pottumuttu@intel.com>
---
 tests/intel/xe_oa.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tests/intel/xe_oa.c b/tests/intel/xe_oa.c
index 4e4d0fabc..3b65212ae 100644
--- a/tests/intel/xe_oa.c
+++ b/tests/intel/xe_oa.c
@@ -2389,7 +2389,7 @@ test_buffer_fill(const struct drm_xe_engine_class_instance *hwe)
 		.properties_ptr = to_user_pointer(properties),
 	};
 	size_t report_size = get_oa_format(fmt).size;
-	int buf_size = 65536 * report_size;
+	int buf_size = oa_buffer_size;
 	uint8_t *buf = malloc(buf_size);
 	int len;
 	size_t oa_buf_size = oa_buffer_size;
@@ -2533,7 +2533,7 @@ test_non_zero_reason(const struct drm_xe_engine_class_instance *hwe)
 		.num_properties = ARRAY_SIZE(properties) / 2,
 		.properties_ptr = to_user_pointer(properties),
 	};
-	uint32_t buf_size = 3 * 65536 * report_size;
+	uint32_t buf_size = 3 * oa_buffer_size;
 	uint8_t *buf = malloc(buf_size);
 	uint32_t total_len = 0;
 	const uint32_t *last_report;
@@ -2615,7 +2615,7 @@ test_enable_disable(const struct drm_xe_engine_class_instance *hwe)
 		.properties_ptr = to_user_pointer(properties),
 	};
 	size_t report_size = get_oa_format(fmt).size;
-	int buf_size = 65536 * report_size;
+	int buf_size = oa_buffer_size;
 	uint8_t *buf = malloc(buf_size);
 	size_t oa_buf_size = oa_buffer_size;
 	int n_full_oa_reports = oa_buf_size / report_size;
-- 
2.34.1