freebsd-skq/sys/i386/include
jhb 6bae79f884 Add a new bus method to fetch device-specific CPU sets.
bus_get_cpus() returns a specified set of CPUs for a device.  It accepts
an enum for the second parameter that indicates the type of cpuset to
request.  Currently two valus are supported:

 - LOCAL_CPUS (on x86 this returns all the CPUs in the package closest to
   the device when DEVICE_NUMA is enabled)
 - INTR_CPUS (like LOCAL_CPUS but only returns 1 SMT thread for each core)

For systems that do not support NUMA (or if it is not enabled in the kernel
config), LOCAL_CPUS fails with EINVAL.  INTR_CPUS is mapped to 'all_cpus'
by default.  The idea is that INTR_CPUS should always return a valid set.

Device drivers which want to use per-CPU interrupts should start using
INTR_CPUS instead of simply assigning interrupts to all available CPUs.
In the future we may wish to add tunables to control the policy of
INTR_CPUS (e.g. should it be local-only or global, should it ignore
SMT threads or not).

The x86 nexus driver exposes the internal set of interrupt CPUs from the
the x86 interrupt code via INTR_CPUS.

The ACPI bus driver and PCI bridge drivers use _PXM to return a suitable
LOCAL_CPUS set when _PXM exists and DEVICE_NUMA is enabled.  They also and
the global INTR_CPUS set from the nexus driver with the per-domain set from
_PXM to generate a local INTR_CPUS set for child devices.

Compared to the r298933, this version uses 'struct _cpuset' in
<sys/bus.h> instead of 'cpuset_t' to avoid requiring <sys/param.h>
(<sys/_cpuset.h> still requires <sys/param.h> for MAXCPU even though
<sys/_bitset.h> does not after recent changes).
2016-05-09 20:50:21 +00:00
..
pc - Add a new structure type for the ACPI 3.0 SMAP entry that includes the 2014-08-29 21:25:47 +00:00
xen xen/i386: enable the platform hypercall for i386 2016-05-03 08:05:14 +00:00
_align.h
_bus.h
_inttypes.h
_limits.h
_stdint.h
_types.h
acpica_machdep.h
apm_bios.h
apm_segments.h
asm.h Revert r274772: it is not valid on MIPS 2014-11-25 03:50:31 +00:00
asmacros.h Use movw instead of movl (or plain mov) when moving segment registers 2015-10-29 21:25:46 +00:00
atomic.h Improve comments. 2015-07-30 15:47:53 +00:00
bootinfo.h
bus_dma.h
bus.h
clock.h xen: implement an early timer for Xen PVH 2014-03-11 10:20:42 +00:00
counter.h
cpu.h amd64/i386: introduce APIC hooks for different APIC implementations. 2014-06-16 08:43:03 +00:00
cpufunc.h The prefix for CLFLUSHOPT is 0x66. It was right on amd64. 2015-10-30 09:53:33 +00:00
cputypes.h Move shared variables from {amd64,i386}/initcpu.c to x86/identcpu.c. 2015-12-23 21:41:42 +00:00
cserial.h
db_machdep.h
dump.h Factor out duplicated code from dumpsys() on each architecture into generic 2015-01-07 01:01:39 +00:00
elan_mmcr.h
elf.h
endian.h
exec.h
fdt.h
float.h
floatingpoint.h
frame.h Duplicate the copyright from the i386/i386/machdep.c into 2015-07-10 09:15:06 +00:00
gdb_machdep.h Report the values of x86 segment registers to remote debuggers. 2015-06-12 15:14:08 +00:00
ieeefp.h
if_wl_wavelan.h
in_cksum.h Rationalize BSD license on sys/*/include/in_cksum.h 2015-08-05 19:05:12 +00:00
intr_machdep.h Add a new bus method to fetch device-specific CPU sets. 2016-05-09 20:50:21 +00:00
ioctl_bt848.h
ioctl_meteor.h
iodev.h
kdb.h
limits.h
md_var.h Type of the interrupt handlers on x86 cannot be expressed in C. 2016-03-29 19:56:48 +00:00
memdev.h
metadata.h Move amd64 metadata.h to x86 and share with i386 2016-01-07 19:47:26 +00:00
minidump.h
mp_watchdog.h
nexusvar.h
npx.h Provide npx_get_fsave(9) and npx_set_fsave(9) functions to obtain and 2015-06-29 12:06:36 +00:00
ofw_machdep.h
param.h Give large kernel stack to the initial thread . Otherwise, ZFS 2015-08-04 13:50:52 +00:00
pcaudioio.h
pcb_ext.h
pcb.h Export various helper variables describing the layout and size of 2015-11-12 22:00:59 +00:00
pci_cfgreg.h
pcpu.h Add two new pmap functions: 2015-08-04 19:46:13 +00:00
perfmon.h
pmap.h For amd64 non-PCID machines, and for i386 machines with support for 2015-12-03 11:14:14 +00:00
pmc_mdep.h Use single instance of the identical INKERNEL() and PMC_IN_KERNEL() 2015-07-02 14:37:21 +00:00
ppireg.h
proc.h
profile.h
psl.h
ptrace.h
pvclock.h Generalized parts of the XEN timer code into a generic pvclock 2015-02-04 08:26:43 +00:00
reg.h
reloc.h
resource.h Add support for managing PCI bus numbers. As with BARs and PCI-PCI bridge 2014-02-12 04:30:37 +00:00
runq.h
segments.h Remove support for Xen PV domU kernels. Support for HVM domU kernels 2015-04-30 15:48:48 +00:00
setjmp.h
sf_buf.h Merge all MD sf_buf allocators into one MI, residing in kern/subr_sfbuf.c 2014-08-05 09:44:10 +00:00
sigframe.h
signal.h
smapi.h
smp.h Merge common parts of i386 and amd64 md_var.h and smp.h into 2015-12-07 17:41:20 +00:00
speaker.h
specialreg.h
stack.h Merge stack(9) implementations for i386 and amd64 under x86/. 2015-09-11 03:24:07 +00:00
stdarg.h
sysarch.h
timerreg.h
trap.h
tss.h
ucontext.h
varargs.h
vdso.h
vm86.h
vm.h Reassign copyright statements on several files from Advanced 2015-04-23 14:22:20 +00:00
vmparam.h Retire VM_FREEPOOL_CACHE as the next step in eliminating PG_CACHE pages. 2015-06-08 04:59:32 +00:00
xbox.h