On 2014-07-15 at 10:45:29 +0200, Ley Foon Tan <lftan@xxxxxxxxxx> wrote: > This patch adds the kernel booting and the initial setup code. > > Signed-off-by: Ley Foon Tan <lftan@xxxxxxxxxx> > --- > arch/nios2/include/asm/entry.h | 152 ++++++++++++++++++++++++++++ > arch/nios2/include/asm/setup.h | 38 +++++++ > arch/nios2/kernel/head.S | 175 ++++++++++++++++++++++++++++++++ > arch/nios2/kernel/setup.c | 222 +++++++++++++++++++++++++++++++++++++++++ > 4 files changed, 587 insertions(+) > create mode 100644 arch/nios2/include/asm/entry.h > create mode 100644 arch/nios2/include/asm/setup.h > create mode 100644 arch/nios2/kernel/head.S > create mode 100644 arch/nios2/kernel/setup.c > > diff --git a/arch/nios2/include/asm/entry.h b/arch/nios2/include/asm/entry.h > new file mode 100644 > index 0000000..8b7cddd > --- /dev/null > +++ b/arch/nios2/include/asm/entry.h > @@ -0,0 +1,152 @@ [...] > +/* > + * Stack layout in 'ret_from_exception': > + * > + * This allows access to the syscall arguments in registers r4-r8 > + * > + * 0(sp) - r8 > + * 4(sp) - r9 > + * 8(sp) - r10 > + * C(sp) - r11 > + * 10(sp) - r12 > + * 14(sp) - r13 > + * 18(sp) - r14 > + * 1C(sp) - r15 > + * 20(sp) - r1 > + * 24(sp) - r2 > + * 28(sp) - r3 > + * 2C(sp) - r4 > + * 30(sp) - r5 > + * 34(sp) - r6 > + * 38(sp) - r7 > + * 3C(sp) - orig_r2 > + * 40(sp) - ra > + * 44(sp) - fp > + * 48(sp) - sp > + * 4C(sp) - gp > + * 50(sp) - estatus > + * 54(sp) - status_extension (NOMMU only) > + * 58(sp) - ea > + */ status_extension no longer exists and orig_r7 is missing in the list above. Since this corresponds to the order of struct pt_regs anyhow, this comment seems rather pointless to me, so you might as well want to remove it altogether. -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
