This looks ok if these priorities are mapped to Classic or Score. POSIX thread priorities run opposite.
On Wed, Dec 23, 2020, 2:36 PM <chr...@rtems.org> wrote: > From: Chris Johns <chr...@rtems.org> > > It seems we need valid values or assumptions in the FreeBSD about > these values breaks some of the code. > > Closes #4207 > --- > cpukit/include/sys/priority.h | 102 ++++++++++++++++++++++++++++------ > 1 file changed, 85 insertions(+), 17 deletions(-) > > diff --git a/cpukit/include/sys/priority.h b/cpukit/include/sys/priority.h > index 025de6290c..855edb63c2 100644 > --- a/cpukit/include/sys/priority.h > +++ b/cpukit/include/sys/priority.h > @@ -1,5 +1,7 @@ > -/* > - * Copyright (c) 2015 embedded brains GmbH > +/*- > + * SPDX-License-Identifier: BSD-4-Clause > + * > + * Copyright (c) 1994, Henrik Vestergaard Draboel > * All rights reserved. > * > * Redistribution and use in source and binary forms, with or without > @@ -10,6 +12,11 @@ > * 2. Redistributions in binary form must reproduce the above copyright > * notice, this list of conditions and the following disclaimer in the > * documentation and/or other materials provided with the distribution. > + * 3. All advertising materials mentioning features or use of this > software > + * must display the following acknowledgement: > + * This product includes software developed by Henrik Vestergaard > Draboel. > + * 4. The name of the author may not be used to endorse or promote > products > + * derived from this software without specific prior written > permission. > * > * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND > * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE > @@ -22,23 +29,84 @@ > * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY > WAY > * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF > * SUCH DAMAGE. > + * > + * $FreeBSD$ > */ > > #ifndef _SYS_PRIORITY_H_ > -#define _SYS_PRIORITY_H_ > - > -/* Dummy values to make the libbsd happy */ > -#define PRI_MAX_ITHD 0 > -#define PI_NET 0 > -#define PI_DISK 0 > -#define PI_SOFT 0 > -#define PI_SWI(x) 0 > -#define PRI_MIN_KERN 0 > -#define PVM 0 > -#define PRIBIO 0 > -#define PZERO 0 > -#define PSOCK 0 > -#define PWAIT 0 > -#define PPAUSE 0 > +#define _SYS_PRIORITY_H_ > + > +/* > + * Process priority specifications. > + */ > + > +/* > + * Priority classes. > + */ > + > +#define PRI_ITHD 1 /* Interrupt thread. */ > +#define PRI_REALTIME 2 /* Real time process. */ > +#define PRI_TIMESHARE 3 /* Time sharing process. */ > +#define PRI_IDLE 4 /* Idle process. */ > + > +/* > + * Priorities range from 0 to 255, but differences of less then 4 (RQ_PPQ) > + * are insignificant. Ranges are as follows: > + * > + * Interrupt threads: 0 - 47 > + * Realtime user threads: 48 - 79 > + * Top half kernel threads: 80 - 119 > + * Time sharing user threads: 120 - 223 > + * Idle user threads: 224 - 255 > + * > + * XXX If/When the specific interrupt thread and top half thread ranges > + * disappear, a larger range can be used for user processes. > + */ > + > +#define PRI_MIN (0) /* Highest priority. */ > +#define PRI_MAX (255) /* Lowest priority. */ > + > +#define PRI_MIN_ITHD (PRI_MIN) > +#define PRI_MAX_ITHD (PRI_MIN_REALTIME - 1) > + > +#define PI_REALTIME (PRI_MIN_ITHD + 0) > +#define PI_AV (PRI_MIN_ITHD + 4) > +#define PI_NET (PRI_MIN_ITHD + 8) > +#define PI_DISK (PRI_MIN_ITHD + 12) > +#define PI_TTY (PRI_MIN_ITHD + 16) > +#define PI_DULL (PRI_MIN_ITHD + 20) > +#define PI_SOFT (PRI_MIN_ITHD + 24) > +#define PI_SWI(x) (PI_SOFT + (x) * RQ_PPQ) > + > +#define PRI_MIN_REALTIME (48) > +#define PRI_MAX_REALTIME (PRI_MIN_KERN - 1) > + > +#define PRI_MIN_KERN (80) > +#define PRI_MAX_KERN (PRI_MIN_TIMESHARE - 1) > + > +#define PSWP (PRI_MIN_KERN + 0) > +#define PVM (PRI_MIN_KERN + 4) > +#define PINOD (PRI_MIN_KERN + 8) > +#define PRIBIO (PRI_MIN_KERN + 12) > +#define PVFS (PRI_MIN_KERN + 16) > +#define PZERO (PRI_MIN_KERN + 20) > +#define PSOCK (PRI_MIN_KERN + 24) > +#define PWAIT (PRI_MIN_KERN + 28) > +#define PLOCK (PRI_MIN_KERN + 32) > +#define PPAUSE (PRI_MIN_KERN + 36) > + > +#define PRI_MIN_TIMESHARE (120) > +#define PRI_MAX_TIMESHARE (PRI_MIN_IDLE - 1) > + > +#define PUSER (PRI_MIN_TIMESHARE) > + > +#define PRI_MIN_IDLE (224) > +#define PRI_MAX_IDLE (PRI_MAX) > + > +#ifdef _KERNEL > +/* Other arguments for kern_yield(9). */ > +#define PRI_USER -2 /* Change to current user priority. */ > +#define PRI_UNCHANGED -1 /* Do not change priority. */ > +#endif > > #endif /* !_SYS_PRIORITY_H_ */ > -- > 2.24.1 > > _______________________________________________ > devel mailing list > devel@rtems.org > http://lists.rtems.org/mailman/listinfo/devel >
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