Hi Michael,
Le 07/12/2019 à 18:20, Christophe Leroy a écrit :
call_do_irq() and call_do_softirq() are simple enough to be
worth inlining.
Inlining them avoids an mflr/mtlr pair plus a save/reload on stack.
It also allows GCC to keep the saved ksp_limit in an nonvolatile reg.
This is inspired f
Le 12/12/2019 à 13:52, Christoph Hellwig a écrit :
On Sat, Dec 07, 2019 at 05:20:04PM +, Christophe Leroy wrote:
call_do_irq() and call_do_softirq() are simple enough to be
worth inlining.
Inlining them avoids an mflr/mtlr pair plus a save/reload on stack.
It also allows GCC to keep the
On Sat, Dec 07, 2019 at 05:20:04PM +, Christophe Leroy wrote:
> call_do_irq() and call_do_softirq() are simple enough to be
> worth inlining.
>
> Inlining them avoids an mflr/mtlr pair plus a save/reload on stack.
> It also allows GCC to keep the saved ksp_limit in an nonvolatile reg.
>
> Thi
call_do_irq() and call_do_softirq() are simple enough to be
worth inlining.
Inlining them avoids an mflr/mtlr pair plus a save/reload on stack.
It also allows GCC to keep the saved ksp_limit in an nonvolatile reg.
This is inspired from S390 arch. Several other arches do more or
less the same. The
