Document the expected length register config pointers (tuple of u32
values).
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
---
include/uapi/drm/i915_drm.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
index fd5c103fe88d..20062f30c1b1 100644
--- a/include/uapi/drm/i915_drm.h
+++ b/include/uapi/drm/i915_drm.h
@@ -1523,6 +1523,11 @@ struct drm_i915_perf_oa_config {
__u32 n_boolean_regs;
__u32 n_flex_regs;
+ /**
+ * These fields are pointers to tuples of u32 values (register
+ * address, value). For example the expected length of the buffer
+ * pointed by mux_regs_ptr should be (2 * sizeof(u32) * n_mux_regs).
+ */
__u64 mux_regs_ptr;
__u64 boolean_regs_ptr;
__u64 flex_regs_ptr;
--
2.14.1
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