leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
283237a04f
linux/arch/arc/include/asm
History
Vineet Gupta 283237a04f ARC: pt_regs update #1: Align pt_regs end with end of kernel stack page 
Historically, pt_regs would end at offset of 1 word from end of stack
page.

        -----------------  -> START of page (task->stack)
        |               |
        | thread_info   |
        -----------------
        |               |
   ^    ~               ~
   |    ~               ~
   |    |               |
   |    |               | <---- pt_regs used to END here
        -----------------
        | 1 word GUTTER |
        ----------------- -> End of page (START of kernel stack)

This required special "one-off" considerations in low level code.

The root cause is very likely assumption of "empty" SP by the original
ARC kernel hackers, despite ARC700 always been "full" SP.

So finally RIP one word gutter !

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-06-22 19:23:21 +05:30
..
arcregs.h ARC: cache detection code bitrot 2013-06-22 13:46:43 +05:30
asm-offsets.h
atomic.h ARC: Atomic/bitops/cmpxchg/barriers 2013-02-11 20:00:30 +05:30
barrier.h ARC: Atomic/bitops/cmpxchg/barriers 2013-02-11 20:00:30 +05:30
bitops.h ARC: Atomic/bitops/cmpxchg/barriers 2013-02-11 20:00:30 +05:30
bug.h ARC: Fundamental ARCH data-types/defines 2013-02-11 20:00:34 +05:30
cache.h ARC: cache detection code bitrot 2013-06-22 13:46:43 +05:30
cacheflush.h ARC: [mm] Assume pagecache page dirty by default 2013-06-22 19:23:19 +05:30
checksum.h ARC: Checksum/byteorder/swab routines 2013-02-11 20:00:34 +05:30
clk.h ARC: [DeviceTree] Convert some Kconfig items to runtime values 2013-02-15 23:15:56 +05:30
cmpxchg.h ARC: Atomic/bitops/cmpxchg/barriers 2013-02-11 20:00:30 +05:30
current.h ARC: [optim] Cache "current" in Register r25 2013-02-15 23:15:58 +05:30
delay.h ARC: Timers/counters/delay management 2013-02-11 20:00:39 +05:30
disasm.h ARC: disassembly (needed by kprobes/kgdb/unaligned-access-emul) 2013-02-15 23:16:04 +05:30
dma-mapping.h arc: fix dma_address assignment during dma_map_sg() 2013-03-19 15:34:53 +05:30
dma.h ARC: I/O and DMA Mappings 2013-02-15 23:15:54 +05:30
elf.h ARC: Remove SET_PERSONALITY (tracks cross-arch change) 2013-03-18 14:37:05 +05:30
entry.h ARC: pt_regs update #1: Align pt_regs end with end of kernel stack page 2013-06-22 19:23:21 +05:30
exec.h ARC: Fundamental ARCH data-types/defines 2013-02-11 20:00:34 +05:30
futex.h ARC: Futex support 2013-02-15 23:16:00 +05:30
io.h ARC: Add support for ioremap_prot API 2013-02-15 23:16:11 +05:30
irq.h ARC: Prepare interrupt code for external controllers 2013-05-07 13:43:58 +05:30
irqflags.h ARC: Disintegrate arcregs.h 2013-06-22 13:46:42 +05:30
Kbuild ARC: [mm] Aliasing VIPT dcache support 4/4 2013-05-09 22:00:57 +05:30
kdebug.h ARC: Fundamental ARCH data-types/defines 2013-02-11 20:00:34 +05:30
kgdb.h ARC: make allyesconfig build breakages 2013-03-11 19:01:09 +05:30
kprobes.h ARC: kprobes support 2013-02-15 23:16:05 +05:30
linkage.h ARC: Support for single cycle Close Coupled Mem (CCM) 2013-02-15 23:16:10 +05:30
mach_desc.h ARC: make a copy of flat DT 2013-02-26 14:25:18 +05:30
mmu_context.h ARC: SMP support 2013-02-15 23:16:02 +05:30
mmu.h ARC: Disintegrate arcregs.h 2013-06-22 13:46:42 +05:30
module.h ARC: DWARF2 .debug_frame based stack unwinder 2013-02-15 23:16:03 +05:30
mutex.h ARC: SMP support 2013-02-15 23:16:02 +05:30
page.h ARC: [mm] Make stack/heap Non-executable by default 2013-06-22 19:23:20 +05:30
perf_event.h ARC: perf support (software counters only) 2013-02-15 23:16:09 +05:30
pgalloc.h ARC: Page Table Management 2013-02-15 23:15:51 +05:30
pgtable.h ARC: Disintegrate arcregs.h 2013-06-22 13:46:42 +05:30
processor.h ARC: pt_regs update #1: Align pt_regs end with end of kernel stack page 2013-06-22 19:23:21 +05:30
prom.h ARC: [Review] Multi-platform image #2: Board callback Infrastructure 2013-02-15 23:16:13 +05:30
ptrace.h ARC: pt_regs update #1: Align pt_regs end with end of kernel stack page 2013-06-22 19:23:21 +05:30
sections.h ARC: [DeviceTree] Basic support 2013-02-15 23:15:55 +05:30
segment.h ARC: uaccess friends 2013-02-11 20:00:31 +05:30
serial.h ARC: [TB10x] Add support for TB10x platform 2013-05-07 13:43:59 +05:30
setup.h ARC: UAPI Disintegrate arch/arc/include/asm 2013-02-15 23:16:11 +05:30
shmparam.h ARC: [mm] Aliasing VIPT dcache support 4/4 2013-05-09 22:00:57 +05:30
smp.h ARC: [Review] Multi-platform image #7: SMP common code to use callbacks 2013-02-15 23:16:16 +05:30
spinlock_types.h ARC: Spinlock/rwlock/mutex primitives 2013-02-11 20:00:35 +05:30
spinlock.h ARC: Spinlock/rwlock/mutex primitives 2013-02-11 20:00:35 +05:30
string.h ARC: String library 2013-02-11 20:00:35 +05:30
switch_to.h ARC: Process-creation/scheduling/idle-loop 2013-02-11 20:00:38 +05:30
syscall.h ARC: Syscall support (no-legacy-syscall ABI) 2013-02-11 20:00:38 +05:30
syscalls.h ARC: ABIv3: fork/vfork wrappers not needed in "no-legacy-syscall" ABI 2013-03-11 19:01:10 +05:30
thread_info.h ARC: Fundamental ARCH data-types/defines 2013-02-11 20:00:34 +05:30
timex.h ARC: Timers/counters/delay management 2013-02-11 20:00:39 +05:30
tlb-mmu1.h ARC: Disintegrate arcregs.h 2013-06-22 13:46:42 +05:30
tlb.h ARC: Disintegrate arcregs.h 2013-06-22 13:46:42 +05:30
tlbflush.h ARC: TLB flush Handling 2013-02-15 23:15:53 +05:30
uaccess.h ARC: [optim] uaccess __{get,put}_user() optimised 2013-02-11 20:00:32 +05:30
unaligned.h ARC: Unaligned access emulation 2013-02-15 23:16:06 +05:30
unwind.h ARC: DWARF2 .debug_frame based stack unwinder 2013-02-15 23:16:03 +05:30