linux/arch/arc/kernel, branch v3.9

ARC: Fix the typo in event identifier flags used by ptrace

2013-03-20T13:15:45Z

orig_r8_IS_EXCPN and orig_r8_IS_BRKPT were same values due to a copy/paste error. Although it looks bad and is wrong, it really doesn't affect gdb working. orig_r8_IS_BRKPT is the one relevant to debugging (breakpoints), since it is used to provide EFA vs. ERET to a ptrace "stop_pc" request. So when gdb has inserted a breakpoint, orig_r8_IS_BRKPT is already set, and anything else (i.e. orig_r8_IS_EXCPN) becoming same as it, really doesn't hurt gdb. The corollary case, could be nasty but nobody uses the ptrace "stop_pc" request in that case Signed-off-by: Vineet Gupta

ARC: ABIv3: fork/vfork wrappers not needed in "no-legacy-syscall" ABI

2013-03-11T13:31:10Z

When switching to clone() only ABI - I missed out pruning the low level asm syscall wrappers Signed-off-by: Vineet Gupta

ARC: ABIv3: Print the correct ABI ver

2013-03-11T13:31:09Z

Signed-off-by: Vineet Gupta

ARC: make allyesconfig build breakages

2013-03-11T13:31:09Z

CC drivers/mmc/host/mmc_spi.o drivers/mmc/host/mmc_spi.c:118: error: redefinition of 'struct scratch' make[3]: *** [drivers/mmc/host/mmc_spi.o] Error 1 make[2]: *** [drivers/mmc/host] Error 2 make[1]: *** [drivers/mmc] Error 2 make: *** [drivers] Error 2 CC arch/arc/kernel/kgdb.o In file included from include/linux/kgdb.h:20, from arch/arc/kernel/kgdb.c:11: /home/vineetg/arc/k.org/arc-port/arch/arc/include/asm/kgdb.h:34: warning: 'struct pt_regs' declared inside parameter list /home/vineetg/arc/k.org/arc-port/arch/arc/include/asm/kgdb.h:34: warning: its scope is only this definition or declaration, which is probably not what you want arch/arc/kernel/kgdb.c:172: error: conflicting types for 'kgdb_trap' CC arch/arc/kernel/kgdb.o arch/arc/kernel/kgdb.c: In function 'pt_regs_to_gdb_regs': arch/arc/kernel/kgdb.c:62: error: dereferencing pointer to incomplete type Signed-off-by: Vineet Gupta

ARC: Fixup the current ABI version

2013-02-27T14:30:25Z

The upstream kernel ABI (v3) is different from current out-of-tree (v2): * no-legacy-syscalls * user_regs_struct layout has changed So we rev up the ABI version Signed-off-by: Vineet Gupta

ARC: make a copy of flat DT

2013-02-26T08:55:18Z

The flat DT (currently embedded in vmlinux) is in .init section. The unflattened/binary tree doesn't copy strings through and references them from orig flat DT - which could cause catestrohpy if of_* APIs are called post init, say from a driver which is a loadable module. Reported-by: James Hogan Signed-off-by: Vineet Gupta

ARC: Fix pt_orig_r8 access

2013-02-15T17:46:21Z

Syscall restarting fixes made pt_regs->orig_r8 a short word, which was not reflected in the assembler code - thus could potentially break gdb debugging. Signed-off-by: Vineet Gupta

ARC: [3.9] Fallout of hlist iterator update

2013-02-15T17:46:20Z

Commit 0bbacca "hlist: drop the node parameter from iterators" changed the iterator across the board - but ARC port being out-of-tree missed it. Signed-off-by: Vineet Gupta

ARC: 64bit RTSC timestamp hardware issue

2013-02-15T17:46:20Z

The 64bit RTSC is not reliable, causing spurious "jumps" in higher word, making Linux timekeeping go bonkers. So as of now just use the lower 32bit timestamp. A cleaner approach would have been removing RTSC support altogether as the 32bit RTSC is equivalent to old TIMER1 based solution, but some customers can use the 32bit RTSC in SMP syn fashion (vs. TIMER1 which being incore can't be done easily). A fallout of this is sched_clock()'s hardware assisted version needs to go away since it can't use 32bit wrapping counter - instead we use the generic "weak" jiffies based version. Signed-off-by: Vineet Gupta

ARC: [Review] Multi-platform image #7: SMP common code to use callbacks

2013-02-15T17:46:16Z

This again is for switch from singleton platform SMP API to multi-platform paradigm Platform code is not yet setup to populate the callbacks, that happens in next commit Signed-off-by: Vineet Gupta Cc: Arnd Bergmann Acked-by: Arnd Bergmann