I've just reverted some code what it was in 5.5 by wrapping new x86
specific bits with #if's, e.g.:
- CPUID is x86 specific
- mwait is x86 specific
Change-Id: I6cefae34282c777c7340daf3f934d2a11742502e
Signed-off-by: Jeremy Newton <Jeremy.Newton@amd.com>
Use mwaitx instructions when busy waiting for signals to reduce CPU
energy usage.
This can be disabled by setting HSA_ENABLE_MWAITX=0
Change-Id: Ic207895a491b2bf6dacba47ef0921df3faad5b5a
Impacts GPU_ONLY signal type latency when waiting for small operations.
Using this type improves total SDMA small copy performance by ~40% if
the signal is allowed to spin freely.
Change-Id: I27aa128c63a1bacb3f51fb08f166e4e1d6fef651
Added an API for creating signals with attributes.
Added two APIs for IPC operations on signals.
Initial use of exceptions for error handling.
Add ref counting to signals.
Removed spin loops from signal destructors.
Signals are no longer to be destroyed with delete, use DeleteSignal instead.
Added delete safety to doorbells.
Added secondary hsa_signal_t -> Signal* translation path for IPC enabled signals.
Change-Id: Id59065d002f0c2566b0a9425694da2ed27cb7d7f
Informs, in debug mode only, that a signal wait violated the HSA
spec with regard to the consuming agents list. This list is used
for optimized signal type selection.
Change-Id: I5879f8f822d01af504ab913482b2532feb00be98
Jeremy Newton
David Yat Sin
Sean Keely
Ramesh Errabolu
James Edwards (xN/A) TX