Commit ee427e25 authored by Lionel Landwerlin's avatar Lionel Landwerlin

uapi/drm/i915: document field usage of drm_i915_perf_oa_config

Document the expected length of buffers config pointers (tuple of u32
values).
Signed-off-by: default avatarLionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20170918114241.30105-1-lionel.g.landwerlin@intel.com
parent a529a1c9
......@@ -1511,6 +1511,11 @@ 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 is (2 * sizeof(u32) * n_mux_regs).
*/
__u64 mux_regs_ptr;
__u64 boolean_regs_ptr;
__u64 flex_regs_ptr;
......
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