Jeff Roberson b8db34d280 - Define a new md function 'casuptr'. This atomically compares and sets ... a pointer that is in user space. It will be used as the basic primitive for a kernel supported user space lock implementation. - Implement this function in x86's support.s - Provide stubs that return -1 in all other architectures. Implementations will follow along shortly. Reviewed by: jake		2003-04-01 00:18:55 +00:00
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busio.s	Fixed SBUS_RA_*_region_* functions.	2002-10-10 13:38:50 +00:00
busiosubr.c	Add bus_space_unmap() and bus_space_free() functions to release	2002-02-18 13:44:46 +00:00
machdep.c	- Define a new md function 'casuptr'. This atomically compares and sets	2003-04-01 00:18:55 +00:00