[PATCH v2 1/1] bsps/riscv: Add per cpu clock interrupt

Jan.Sommer at dlr.de Jan.Sommer at dlr.de
Tue Mar 23 08:18:53 UTC 2021



> -----Original Message-----
> From: Gedare Bloom <gedare at rtems.org>
> Sent: Monday, March 22, 2021 5:52 PM
> To: Sebastian Huber <sebastian.huber at embedded-brains.de>
> Cc: Sommer, Jan <Jan.Sommer at dlr.de>; devel at rtems.org
> Subject: Re: [PATCH v2 1/1] bsps/riscv: Add per cpu clock interrupt
> 
> On Mon, Mar 22, 2021 at 10:28 AM Sebastian Huber
> <sebastian.huber at embedded-brains.de> wrote:
> >
> >
> > On 22/03/2021 16:56, Jan Sommer wrote:
> > > diff --git a/bsps/riscv/riscv/clock/clockdrv.c
> > > b/bsps/riscv/riscv/clock/clockdrv.c
> > > index d085b6bd95..e8a39c8591 100644
> > > --- a/bsps/riscv/riscv/clock/clockdrv.c
> > > +++ b/bsps/riscv/riscv/clock/clockdrv.c
> > > @@ -41,6 +41,7 @@
> > >   #include <rtems/timecounter.h>
> > >   #include <rtems/score/cpuimpl.h>
> > >   #include <rtems/score/riscv-utility.h>
> > > +#include <rtems/score/smpimpl.h>
> > >
> > >   #include <libfdt.h>
> > >
> > > @@ -92,13 +93,18 @@ static void riscv_clock_at_tick(riscv_timecounter
> *tc)
> > >   {
> > >     volatile RISCV_CLINT_regs *clint;
> > >     uint64_t value;
> > > +  uint32_t cpu = 0;
> > > +
> > > +#if defined(RTEMS_SMP)
> > > +  cpu = _CPU_SMP_Get_current_processor(); #endif
> > You can use rtems_scheduler_get_processor() to get rid of this include
> > of an implementation header and the #if.
> >
> 
> Nice catch. Jan, you can push it with the modification to use the API function
> instead. (Note: BSPs are in a gray area, but generally considered as
> "application" layer, so we should prefer they use the APIs, and if they need
> to poke into the internals of RTEMS, we need to consider why and what can
> be done to avoid violation of the
> layer/encapsulation.)
> 

Thanks. Pushed to master with the changes applied.

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