Commit Graph

25 Commits

Author SHA1 Message Date
Marius Strobl
c95589317d - Use atomic operations rather than sched_lock for safely assigning pm_active
and pc_pmap for SMP. This is key to allowing adding support for SCHED_ULE.
  Thanks go to Peter Jeremy for additional testing.
- Add support for SCHED_ULE to cpu_switch().

Committed from:	201110DevSummit
2011-10-06 11:01:31 +00:00
Marius Strobl
ade68e910d Use the extended integer condition code when comparing 64-bit values. Given
that ATOMIC_INC_LONG currently is unused this happened to not be fatal.
2011-09-30 20:13:51 +00:00
Marius Strobl
6fd7e2b7c6 - Right-justify backslashes as suggested by style(9).
- Rename ATOMIC_INC_ULONG to ATOMIC_INC_LONG in order to be consistent with
  the names of the other macros in this file an adjust accordingly.
2011-09-30 20:06:23 +00:00
Marius Strobl
707b4f4479 Add an ATOMIC_CLEAR_LONG. 2011-05-10 21:18:45 +00:00
Marius Strobl
62cf53e2ea - Move the macros for generating load and store instructions to asmacros.h
so they can be shared by different source files and extend them by a
  variant for atomic compare and swap.
- Consistently use EMPTY.
2010-12-29 14:14:50 +00:00
Marius Strobl
a675da796f Predict KASSERTs to be true. 2010-02-13 19:17:06 +00:00
Poul-Henning Kamp
9a6dc4b647 Remove filename+line number from panic messages. 2004-06-06 21:26:49 +00:00
Ken Smith
8ecb006f39 - Fix for sparc64 to use new __panic() function
Adapted from patch by:	David Cornejo <dcornejo@firetide.com>
Reviewed by:		freebsd-sparc64 (harti)
Approved by:		rwatson (mentor)
2004-01-27 15:02:18 +00:00
John-Mark Gurney
e93581dc7a add support for interrupt counting on sparc64. This copies part of the
code from i386.  The code has a slight bogon that interrupts are counted
twice.  Once on the ithread dispatch and once on the dispatch for the vector

vmstat -i and systat -vm now contains interrupt counts.

Reviewed by:	jake
2003-07-16 00:08:43 +00:00
David E. O'Brien
4bee32ae9c I was wrong, the ENTRY bits in asm.h did have a purpose -- for userland.
Restore the bits and remove them from asmacros.h.  *.S will now be asm.h
consumers.

Approved by:	jake
2003-04-26 20:54:45 +00:00
David E. O'Brien
ef7b1f2f0f The ENTRY bits were in two places. Remove the one not used (asm.h), but
presurve the nice comment by adding it to asmacros.h.
2003-04-26 17:17:45 +00:00
David E. O'Brien
9cd8976ea9 Two tokens that don't together form a vaid preprocssor token cannot be
pasted together using ANSI-C token concatinatation.  GCC's cpp, at least,
produces the desired result w/o using "##".
2003-04-26 17:00:10 +00:00
Jake Burkholder
8b53c815ec Add pmap support for user mappings of multiple page sizes (super pages).
This supports all hardware page sizes (8K, 64K, 512K, 4MB), but only 8k
pages are actually used as of yet.
2002-08-18 02:09:27 +00:00
Jake Burkholder
d40e229819 Add _ALIGN_DATA and _ALIGN_TEXT macros. 2002-07-29 00:38:07 +00:00
Jake Burkholder
597e13d8c5 Minor style. 2002-05-25 01:44:08 +00:00
Jake Burkholder
9ad1d32f3d Fix ifdef LOCORE protection. 2002-03-13 06:04:36 +00:00
Jake Burkholder
453e54056e Add an ATOMIC_CLEAR_INT macro.
Submitted by:	tmm
2002-03-13 03:28:47 +00:00
Jake Burkholder
2a32c6cea1 Update comments and defines to reflect that normal and alternate g6 point
to the current pcb.
Remove interrupt global defines; they use PCPU_REG now.
Move ATOMIC_INC_INT here from exception.s, add ATOMIC_DEC_INT.
Add a KASSERT macro for use in assembler.
2002-01-08 04:34:20 +00:00
Jake Burkholder
bfe6f90832 Add macros for dedicated register variables, for use in assmebler.
Add a PUTS macro.
2001-12-29 06:47:50 +00:00
John Baldwin
0bbc882680 Overhaul the per-CPU support a bit:
- The MI portions of struct globaldata have been consolidated into a MI
  struct pcpu.  The MD per-CPU data are specified via a macro defined in
  machine/pcpu.h.  A macro was chosen over a struct mdpcpu so that the
  interface would be cleaner (PCPU_GET(my_md_field) vs.
  PCPU_GET(md.md_my_md_field)).
- All references to globaldata are changed to pcpu instead.  In a UP kernel,
  this data was stored as global variables which is where the original name
  came from.  In an SMP world this data is per-CPU and ideally private to each
  CPU outside of the context of debuggers.  This also included combining
  machine/globaldata.h and machine/globals.h into machine/pcpu.h.
- The pointer to the thread using the FPU on i386 was renamed from
  npxthread to fpcurthread to be identical with other architectures.
- Make the show pcpu ddb command MI with a MD callout to display MD
  fields.
- The globaldata_register() function was renamed to pcpu_init() and now
  init's MI fields of a struct pcpu in addition to registering it with
  the internal array and list.
- A pcpu_destroy() function was added to remove a struct pcpu from the
  internal array and list.

Tested on:	alpha, i386
Reviewed by:	peter, jake
2001-12-11 23:33:44 +00:00
Jake Burkholder
bc40966754 Implement SET. Set execption.s 1.12.
Submitted by:	tmm
2001-11-18 03:31:01 +00:00
Jake Burkholder
c81f893d0c Implement PCPU_ADDR. Align functions on 16 bytes boundaries. 2001-09-30 18:41:57 +00:00
Jake Burkholder
cae71da765 Gcc 3.0 requires a .register pseudo-op for certain global registers when
used in assembly language.  Tell it to ignore the registers for now.
2001-08-18 18:05:24 +00:00
David E. O'Brien
73a4930297 The author isn't a [UC] Regents. Correct the copyright language. 2001-08-09 02:09:34 +00:00
Jake Burkholder
89bf8575ee Flesh out the sparc64 port considerably. This contains:
- mostly complete kernel pmap support, and tested but currently turned
  off userland pmap support
- low level assembly language trap, context switching and support code
- fully implemented atomic.h and supporting cpufunc.h
- some support for kernel debugging with ddb
- various header tweaks and filling out of machine dependent structures
2001-07-31 06:05:05 +00:00