amdkfd: Disable support for 32-bit user processes
This patch checks if the process that opens the /dev/kfd device is 32-bit process. If so, it returns -EPERM and prints a warning message in dmesg. This is done to prevent 32-bit user processes from using amdkfd, and hence, HSA features. AMD's HSA userspace stack will also support only 64-bit processes on Linux. Reviewed-by: NAlexey Skidanov <alexey.skidanov@amd.com> Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
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