kib [Sat, 9 May 2015 12:28:48 +0000 (12:28 +0000)]
If x86 CPU implementation of the MWAIT instruction reasonably
interacts with interrupts, query ACPI and use MWAIT for entrance into
Cx sleep states. Support C1 "I/O then halt" mode. See Intel'
document 302223-007 "Intelб╝ Processor Vendor-Specific ACPI Interface
Specification" for description.
Move the acpi_cpu_c1() function into x86/cpu_machdep.c and use
it instead of inlining "sti; hlt" sequence in several places.
In the acpi(4) man page, besides documenting the dev.cpu.N.cx_methods
sysctl, correct the names for dev.cpu.N.{cx_usage,cx_lowest,cx_supported}
sysctls.
Both jkim and avg have some other patches implementing the mwait
functionality; this work is unrelated. Linux does not rely on the
ACPI to provide correct tables describing Cx modes. Instead, the
driver has pre-defined knowledge of the CPU models, it was supplied by
Intel.
Tested by: pho (previous versions)
Sponsored by: The FreeBSD Foundation
ian [Fri, 8 May 2015 19:43:53 +0000 (19:43 +0000)]
Move the text section to the start of the output file, so that when you
create a stripped .bin file from it the entry point is the first byte of
the file. (Will allow "load $addr $file ; go $addr" in u-boot.)
jhb [Fri, 8 May 2015 19:43:37 +0000 (19:43 +0000)]
Place VM objects on the object list when created and never remove them.
This is ok since objects come from a NOFREE zone and allows objects to
be locked while traversing the object list without triggering a LOR.
Ensure that objects on the list are marked DEAD while free or stillborn,
and that they have a refcount of zero. This required updating most of
the pagers to explicitly mark an object as dead when deallocating it.
(Only the vnode pager did this previously.)
zbb [Fri, 8 May 2015 18:47:19 +0000 (18:47 +0000)]
Port x86 busdma to ARM64
The x86 busdma subsystem allows using multiple implementations.
By default the classic bounce buffer approach is used, however
on systems with IOMMU it could be in runtime switched to more
efficient hardware accelerated implementation.
This commit adds ARM64 port of the x86 busdma framework and bounce
buffer backend. It is ready to use on IO coherent systems. If the
IO coherency cannot be guaranteed, the cache management operations have
to be added to this code in places marked by /* XXX ARM64TODO (...) */
comments. Also IOMMU support might be added by registering another
busdma implementation like it is already done on the x86.
Reviewed by: andrew, emaste
Obtained from: Semihalf
Sponsored by: The FreeBSD Foundation
hselasky [Fri, 8 May 2015 17:07:11 +0000 (17:07 +0000)]
Add support for more than 8 audio channels per PCM stream for USB
audio class compliant devices under FreeBSD. Tested using 16 recording
and 16 playback audio channels simultaneously.
hselasky [Fri, 8 May 2015 17:00:33 +0000 (17:00 +0000)]
Extend the maximum number of allowed PCM channels in a PCM stream to
127 and decrease the maximum number of sub-channels to 1. These
definitions are only used inside the kernel and can be changed later
if more than one sub-channel is desired. This has been done to allow
so-called USB audio rack modules to work with FreeBSD.
Bump the FreeBSD version to force recompiling all external modules.
hselasky [Fri, 8 May 2015 16:37:40 +0000 (16:37 +0000)]
The "SYSCTL_INT()" default value is only used for read only SYSCTLs
and is not applicable unless the integer pointer is NULL. Set it to
zero to avoid confusion. While at it remove extra semicolon at the end
of the "VT_SYSCTL_INT()" macro.
hselasky [Fri, 8 May 2015 16:19:01 +0000 (16:19 +0000)]
Prevent switching to NULL or own window in the "vt_proc_window_switch"
function. This fixes an issue where X11 keyboard input can appear
stuck. The cause of the problem is a duplicate TTY device window
switch IOCTL during boot, which leaves the "vt_switch_timer" running,
because the current window is already selected. While at it factor out
some NULL checks.
PR: 200032
Differential Revision: https://reviews.freebsd.org/D2480
Reported by: several people
MFC after: 1 week
Reviewed by: emaste
jhb [Fri, 8 May 2015 16:02:31 +0000 (16:02 +0000)]
Use the kern.bootfile sysctl to set the default kernel path rather than
hardcoding /boot/kernel. This allows pmcstat(8) to work without -k when
using nextboot -k or 'boot foo' at the loader to boot alternate kernels.
gjb [Fri, 8 May 2015 15:22:29 +0000 (15:22 +0000)]
Copy arm/WANDBOARD-QUAD.conf to arm/WANDBOARD-{SOLO,DUAL}.conf.
Ian informed me a few months ago that the WANDBOARD-* kernels will
eventually be combined into one that will work across all these
boards, but for now, build them individually.
royger [Fri, 8 May 2015 14:48:40 +0000 (14:48 +0000)]
xen: introduce a newbus function to allocate unused memory
In order to map memory from other domains when running on Xen FreeBSD uses
unused physical memory regions. Until now this memory has been allocated
using bus_alloc_resource, but this is not completely safe as we can end up
using unreclaimed MMIO or ACPI regions.
Fix this by introducing a new newbus method that can be used by Xen drivers
to request for unused memory regions. On amd64 we make sure this memory
comes from regions above 4GB in order to prevent clashes with MMIO/ACPI
regions. On i386 there's nothing we can do, so just fall back to the
previous mechanism.
Sponsored by: Citrix Systems R&D
Tested by: Gustau Pérez <gperez@entel.upc.edu>
gjb [Fri, 8 May 2015 12:50:48 +0000 (12:50 +0000)]
Move the finished image build to the '/R' directory (the
standard 'install' location for other architectures), then
compress the image with xz(1), and generate the CHECKSUM
files.
kevlo [Fri, 8 May 2015 09:01:00 +0000 (09:01 +0000)]
- Fix a wrong R92C_USTIME_TSF register definition
- Fix intitial transmit rate to an 11g rate for the RTL8188EU
- Add a comment about response rate settings
adrian [Fri, 8 May 2015 00:56:56 +0000 (00:56 +0000)]
Add initial memory locality cost awareness to the VM, and include
a basic ACPI SLIT table parser.
For now this just exports the map via sysctl; it'll eventually be useful
to userland when there's more useful NUMA support in -HEAD.
* Add an optional mem_locality map;
* add a mapping function taking from/to domain and returning the
relative cost, or -1 if it's not available;
* Add a very basic SLIT parser to x86 ACPI.
delphij [Thu, 7 May 2015 20:54:38 +0000 (20:54 +0000)]
date(1): Make -r behave like GNU's version when the option can not be
interpreted as a number, which checks the file's modification time and
use that as the date/time value.
This improves compatibility with GNU coreutils's version of time(1).
m_dup() is supposed to give a writable copy of an mbuf chain. It uses
m_dup_pkthdr(), that uses M_COPYFLAGS mask to copy m_flags field.
If original mbuf chain has M_RDONLY flag, its copy also will have it.
Reset this flag explicitly.
emaste [Thu, 7 May 2015 16:56:20 +0000 (16:56 +0000)]
Correct PL310_POWER_CTRL offset
Offet for the power control register was specified incorrectly (it had
the same value as the prefetch control register.) This change corrects
the offset value to 0xF80, per the ARM PL310 documentation.
Submitted by: Steve Kiernan <stevek@juniper.net>
Obtained from: Juniper Networks, Inc.
Remove unneded #ifdef INET6 and IPSEC. This file compiled only when
both options are defined.
Include opt_sctp.h and sctp_crc32.h to enable #ifdef SCTP code block
and delayed checksum calculation for SCTP.
gjb [Thu, 7 May 2015 00:27:28 +0000 (00:27 +0000)]
In release.sh, create the /dev directory within the chroot
before attempting to mount(8) devfs. Also, create the
.OBJDIR for the 'release' target, so files end up in the
correct location.
In tools/arm.subr, fix the target device when creating the
gpart partition scheme.
neel [Wed, 6 May 2015 23:40:24 +0000 (23:40 +0000)]
Check 'td_owepreempt' and yield the vcpu thread if it is set.
This is done explicitly because a vcpu thread can be in a critical section
for the entire time slice alloted to it. This in turn can delay the handling
of the 'td_owepreempt'.
gjb [Wed, 6 May 2015 19:58:12 +0000 (19:58 +0000)]
Add tools/arm.subr to contain common subroutines used for
building arm images. This is similar to tools/vmimage.subr
used for building virtual machine disk images. By default,
only arm_create_disk() and arm_install_base() contain real
functionality here, and arm_install_uboot() must be overridden
in the arm/KERNEL.conf file.
In release.sh, make create_arm_armv6_build_release() do
something now.
In arm/BEAGLEBONE.conf, set IMAGE_SIZE, PART_SCHEME, FAT_SIZE,
FAT_TYPE, and MD_ARGS, as well as make arm_install_uboot()
functional.
Parts of this were taken from disecting a previous BEAGLEBONE
image, and other parts obtained from Crochet sources.
glebius [Wed, 6 May 2015 16:43:44 +0000 (16:43 +0000)]
Printing interface names:
o Restore historical behaviour of appending '*' if interface is down,
and we have enough space to print it (usually we don't). [1]
o Do not truncate interface names when printing in encoded format.
o Report interface flags into encoded format.
neel [Wed, 6 May 2015 16:25:20 +0000 (16:25 +0000)]
Deprecate the 3-way return values from vm_gla2gpa() and vm_copy_setup().
Prior to this change both functions returned 0 for success, -1 for failure
and +1 to indicate that an exception was injected into the guest.
The numerical value of ERESTART also happens to be -1 so when these functions
returned -1 it had to be translated to a positive errno value to prevent the
VM_RUN ioctl from being inadvertently restarted. This made it easy to introduce
bugs when writing emulation code.
Fix this by adding an 'int *guest_fault' parameter and setting it to '1' if
an exception was delivered to the guest. The return value is 0 or EFAULT so
no additional translation is needed.
emaste [Wed, 6 May 2015 15:29:11 +0000 (15:29 +0000)]
Remove historical GNUC test
The requirement is for a GCC-compatible compiler and not necessarily
GCC itself. However, we currently expect any compiler used for building
the whole of FreeBSD to be GCC-compatible and many things will break if
not; there's no longer a need to have an explicit test for this in rtld.
Reviewed by: imp, kib
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D2422
projects / FreeBSD / FreeBSD.git / log