prov/shm, lnx: fix xpmem and hmem paths #11653
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The IOV protocol is not compatible if GPU memory is being used. shm turns off CMA if HMEM is being used but because xpmem is initialized elsewhere, the same disabling was not added. This only enables the region's xpmem info if HMEM is not enabled on the EP Signed-off-by: Zach Dworkin <[email protected]> Signed-off-by: Alexia Ingerson <[email protected]>
LNX cannot assume the region is device only memory. It has to simply pass in the user provided flags. Not using this flag will not allow shm to use IPC copies but the proper fix is to have the application set the flag (or to use the HMEM hook to do device information discovery) Signed-off-by: Zach Dworkin <[email protected]> Signed-off-by: Alexia Ingerson <[email protected]>
j-xiong
approved these changes
Nov 24, 2025
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Disable xpmem properly if FI_HMEM was requested
Remove incorrect setting of mr flag in LNX