Commit 21de5a9e authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915/gt: Ignore forcewake acquisition for posting_reads 



We don't care about the result of the read, so it may be garbage, we
only care that the mmio is flushed. As such, we can forgo using an
individual forcewake and lock around any posting-read for an engine.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190703155225.9501-4-chris@chris-wilson.co.uk
parent 313443b1

drivers/gpu/drm/i915/gt/intel_engine.h

+1 −1
Original line number Diff line number Diff line
@@ -51,7 +51,7 @@ struct drm_printer; 
#define ENGINE_READ16(...)	__ENGINE_READ_OP(read16, __VA_ARGS__)

#define ENGINE_READ(...)	__ENGINE_READ_OP(read, __VA_ARGS__)

#define ENGINE_READ_FW(...)	__ENGINE_READ_OP(read_fw, __VA_ARGS__)

#define ENGINE_POSTING_READ(...) __ENGINE_READ_OP(posting_read, __VA_ARGS__)

#define ENGINE_POSTING_READ(...) __ENGINE_READ_OP(posting_read_fw, __VA_ARGS__)

#define ENGINE_POSTING_READ16(...) __ENGINE_READ_OP(posting_read16, __VA_ARGS__)



#define ENGINE_READ64(engine__, lower_reg__, upper_reg__) \

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