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Commit ee427e25 authored by Lionel Landwerlin's avatar Lionel Landwerlin
Browse files

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

include/uapi/drm/i915_drm.h

+5 −0
Original line number Original line Diff line number Diff line
@@ -1511,6 +1511,11 @@ struct drm_i915_perf_oa_config { 
	__u32 n_boolean_regs;

	__u32 n_boolean_regs;

	__u32 n_flex_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 mux_regs_ptr;

	__u64 boolean_regs_ptr;

	__u64 boolean_regs_ptr;

	__u64 flex_regs_ptr;

	__u64 flex_regs_ptr;