5 commits

Author	SHA1	Message	Date
Nathan Whitehorn	1679c30254	Make RTAS calls, which call setfault() to recover from machine checks, ... preserve any existing fault buffer. RTAS calls are meant to be safe from interrupt context (and are indeed used there to implement the xics PIC drvier). Without this, calling into RTAS in interrupt context would have the effect of clearing any existing onfault state of the interrupted thread, potentially leading to a panic.	2013-11-27 21:51:34 +00:00
Nathan Whitehorn	e52f055d23	Use a spin lock instead of a mutex to gate RTAS. This is required if RTAS ... calls are involved in interrupt handling. Approved by: re (kib)	2013-09-09 12:45:41 +00:00
Ed Schouten	d745c852be	Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. ... This means that their use is restricted to a single C file.	2011-11-07 06:44:47 +00:00
Nathan Whitehorn	9134df8b6f	Add better error handling for RTAS calls. These can potentially cause ... machine checks (e.g. invalid PCI configuration cycles), but these can be caught and recovered from. This change also the RTAS PCI driver to work without modification as a replacement for the Grackle driver on Grackle-based Powermacs.	2011-06-26 16:11:36 +00:00
Nathan Whitehorn	1787909001	MFpseries: ... Renovate and improve the AIM Open Firmware support: - Add RTAS (Run-Time Abstraction Services) support, found on all IBM systems and some Apple ones - Improve support for 32-bit real mode Open Firmware systems - Pull some more OF bits over from the AIM directory - Fix memory detection on IBM LPARs and systems with more than one /memory node (by andreast@)	2011-06-02 14:12:37 +00:00