3 Commits

Author	SHA1	Message	Date
Jonas Bonn	207e715ff1	openrisc: use scratch regs in atomic syscall ... The function sys_or1k_atomic was using call-saved registers without restoring their value before returning. This is a faux pas: either we need to restore their values or use scratch regs; the latter is less code so that's the route this patch takes. Thanks to David Hennerström for doing most of the heavy-lifting in tracking this one down. Reported-by: Davd Hennerström <david.hennerstrom@aacmicrotec.com> Signed-off-by: Jonas Bonn <jonas@southpole.se>	2012-05-08 11:43:59 +02:00
Jonas Bonn	6cbe5e9526	openrisc: sanitize use of orig_gpr11 ... The pt_regs struct had both a 'syscallno' field and an 'orig_gpr11' field and it wasn't really clear how these were supposed to be used. This patch removes the syscallno field altogether and makes orig_gpr11 work more like other architectures: keep track of syscall number in progress or hold -1 for non-syscall exceptions. Signed-off-by: Jonas Bonn <jonas@southpole.se>	2012-03-06 10:37:00 +01:00
Jonas Bonn	9d02a4283e	OpenRISC: Boot code ... Architecture code and early setup routines for booting Linux. Signed-off-by: Jonas Bonn <jonas@southpole.se> Reviewed-by: Arnd Bergmann <arnd@arndb.de>	2011-07-22 18:46:27 +02:00