MFC 275256:
Switch to the ARM unified assembly language as the clang integrated as only
supports it. Binutils supports it when the ".syntax unified" directive
is set.
Sponsored by: ABT Systems Ltd
MFC 275264:
Update _ENTRY to use _EENTRY to reduce the common code.
MFC 275321:
Remove extra labels, ENTRY_NP already provides them.
Sponsored by: ABT Systems Ltd
MFC 275322:
Correctly a few incorrect uses of ENTRY/EENTRY and END/EEND
Sponsored by: ABT Systems Ltd
MFC 275416:
Fix the name of the coprocessor to include the "p" prefix, the clang
integrated assembler expects this.
Sponsored by: ABT Systems Ltd
MFC 275418:
Switch to unified syntax so these can be built with clang 3.5.
Sponsored by: ABT Systems Ltd
MFC 275519:
Add missing END macros to some of the xscale functions.
Sponsored by: ABT Systems Ltd
MFC 275520:
Use the unified syntax in a few more assembly files
Sponsored by: ABT Systems Ltd
MFC 275521:
Set the alignment to 4-bytes after a string as clang 3.5 can switch to
thumb mode if this is incorrect.
Sponsored by: ABT Systems Ltd
MFC 275522:
Place the literal pool after a RET otherwise clang 3.5 tries to put it too
far away from a ldr psuedo instruction. With this clang will place the
literal value here where it's close enough to be loaded.
Sponsored by: ABT Systems Ltd
MFC 275523:
Switch to an armv6k cpu, without this clang 3.5 complains "bx lr" is
unsupported as it needs a newer cpu.
Sponsored by: ABT Systems Ltd
MFC 275524:
Switch to a .cpu directive. These will work when clang 3.5 is imported
where the .arch directive is a nop.
Sponsored by: ABT Systems Ltd
We don't use the hypervisor interrupt, make it optional in the device tree.
Submitted by: Julien Grall <julien.grall AT linaro.org>
MFC 275208:
Some device tree configurations place the generic timer under the root
of the tree and not under simplebus. Update the driver to handle this.
Submitted by: Julien Grall <julien.grall AT linaro.org>
Move the definitions of the fdt functions from a uboot header to a new fdt
header. There is nothing in the fdt spec that ties it to U-Boot.
While here sort and fix the signature of fdt_setup_fdtp.
MFC 273934:
Start to allow platforms other than U-Boot to use the FDT code in loader by
moving U-Boot specific code from libfdt.a to a new libuboot_fdt.a. This
needs to be a new library for linking to work correctly.
Differential Revision: https://reviews.freebsd.org/D1054
Reviewed by: ian, rpaulo (earlier version)
Clean up the types of a few strings to make them const when they are never
written to.
MFC r273914:
The command name is a constant, use the correct type.
Pull in r223171 from upstream llvm trunk (by Michael Zolotukhin):
PR21302. Vectorize only bottom-tested loops.
rdar://problem/18886083
This fixes a bug in the llvm vectorizer, which could sometimes cause
vectorized loops to perform an additional iteration, leading to possible
buffer overruns. Symptoms of this, which are usually segfaults, were
first noticed when building gcc ports, here:
https://lists.freebsd.org/pipermail/freebsd-ports/2014-September/095466.htmlhttps://lists.freebsd.org/pipermail/freebsd-toolchain/2014-September/001211.html
Since this fix is very important for ports, bump __FreeBSD_version to
make it easier for port maintainers to test whether the fix has been
applied.
Upstream PR: http://llvm.org/PR21302
When passing LUN IDs through treat ASCII values as fixed-length, not
interpreating NULLs as EOLs, but converting them to spaces.
SPC-4 does not tell that T10-based IDs should be NULL-terminated/padded.
And while it tells that it should include only ASCII chars (0x20-0x7F),
there are some USB sticks (SanDisk Ultra Fit), that have NULLs inside
the value. Treating NULLs as EOLs there made those LUN IDs non-unique.
Move icl_pdu_get_data() and xpt_done() out of initiator's session lock.
During heavy reads data copying in icl_pdu_get_data() may consume large
percent of CPU time. Moving it out of the lock significantly reduces
lock hold time and respectively lock congestion on read operations.
Pass correct command that should be aborted to ISPCTL_ABORT_CMD.
This makes XPT_ABORT to work for me on initiator side of isp(4).
Previous code was trying to abort the XPT_ABORT itself and failed.
In this mode one head is in Active state, supporting all commands, while
another is in Standby state, supporting only minimal LUN discovery subset.
It is still incomplete since Standby state requires reservation support,
which is impossible to do right without having interlink between heads.
But it allows to run some basic experiments.
fix l2arc compression buffers leak
We have observed that arc_release() can be called concurrently with a
l2arc in-flight write.
Also, we have observed that arc_hdr_destroy() can be called from
arc_write_done() for a zio with ZIO_FLAG_IO_REWRITE flag in similar
circumstances.
Previously the l2arc headers would be freed while leaking their
associated compression buffers. Now the buffers are placed on
l2arc_free_on_write list for delayed freeing. This is similar to what
was already done to arc buffers that were supposed to be freed
concurrently with in-flight writes of those buffers.
In addition to fixing the discovered leaks this change also adds some
protective code to assert that a compression buffer associated with a
l2arc header is never leaked.
A new kstat l2_cdata_free_on_write is added. It keeps a count of
delayed compression buffer frees which previously would have been leaks.
Tested by: Vitalij Satanivskij <satan@ukr.net> et al
Requested by: many
Sponsored by: HybridCluster / ClusterHQ
This is a 10.1-RELEASE errata candidate.
Improve zdb -b performance:
- Reduce gethrtime() call to 1/100th of blkptr's;
- Skip manipulating the size-ordered tree;
- Issue more (10, previously 3) async reads;
- Use lighter weight testing in traverse_visitbp();
Illumos issue:
5243 zdb -b could be much faster
Fix the following -Werror warning from clang 3.5.0, while building the
ath kernel module:
sys/dev/ath/ath_hal/ar5212/ar5212_reset.c:2642:7: error: taking the absolute value of unsigned type 'unsigned int' has no effect [-Werror,-Wabsolute-value]
if (abs(lp[0] * EEP_SCALE - target) < EEP_DELTA) {
^
sys/dev/ath/ah_osdep.h:74:18: note: expanded from macro 'abs'
#define abs(_a) __builtin_abs(_a)
^
sys/dev/ath/ath_hal/ar5212/ar5212_reset.c:2642:7: note: remove the call to '__builtin_abs' since unsigned values cannot be negative
sys/dev/ath/ah_osdep.h:74:18: note: expanded from macro 'abs'
#define abs(_a) __builtin_abs(_a)
^
1 error generated.
This warning occurs because both lp[0] and target are unsigned, so the
subtraction expression is also unsigned, and calling abs() is a no-op.
However, the intention was to look at the absolute difference between
the two unsigned quantities. Introduce a small static function to
clarify what we're doing, and call that instead.
Reviewed by: adrian
Differential Revision: https://reviews.freebsd.org/D1212
Merge from CheriBSD:
commit d0c7d235c09fc65dbdb278e7016a96f79c6a49cc
Make the Altera JTAG UART device driver slightly more forgiving of
the foibles of a sub-par hrdware interface by increasing the timeout
for spotting JTAG polling from one to two seconds.
commit 19ed45a18832560dab967c179d83b71081c3a220
Update comment.
commit 8edfe803f033cc8e33229f99894c2b7496a44d5f
Add a comment about a device-driver race condition that could cause the BERI
pipeline to wedge awaiting JTAG in the event that both the low-level console
and the tty layer decide to write to the JTAG FIFO just before JTAG is
disconnected. Resolving this race is a bit tricky as it looks like there
isn't a way to 'give the character back' to the tty layer when we discover
the race. The easy fix is to drop the character, which we don't yet do, but
perhaps should as that is a better outcome than wedging the pipeline.
commit 2ea26cf579c9defcf31e413e7c9b0fbc159237fc
Add a comment about an inherent race with hardware in the Altera JTAG
UART's low-level console code.
Submitted by: rwatson
Sponsored by: DARPA, AFRL
drm: fix usage of vm_phys_fictitious_to_vm_page
vm_phys_fictitious_to_vm_page should not be called directly, even when
operating on a range that has been registered using
vm_phys_fictitious_reg_range. PHYS_TO_VM_PAGE should be used instead
because on arches that use VM_PHYSSEG_DENSE the page might come
directly from vm_page_array.
Reported by: nwhitehorn
Tested by: nwhitehorn, David Mackay <davidm.jx8p@gmail.com>
Sponsored by: Citrix Systems R&D
Port the TTM AGP backend to the FreeBSD agp driver and enable AGP support
in the radeonkms driver.
Note: In PCI mode virtual addresses on the graphics card that map to system
RAM are translated to physical addresses by the graphics card itself. In
AGP mode address translation is done by the AGP chipset so fictitious
addresses appear on the system bus. For the CPU cache management to work
correctly when the CPU accesses this memory it needs to use the same
fictitious addresses (and let the chipset translate them) instead of using
the physical addresses directly.
Reviewed by: kib
- Add two new functions to the AGP driver KPI to bind/unbind arbitrary sets
of pages into the GTT.
- Avoid possible overflow in agp_generic_alloc_memory.
- In agp(4) avoid the need to flush all cpu caches with wbinvd between
updating the GTT and flushing the AGP TLB by storing the GTT in
write-combining memory.
- In agp_amd_bind_page don't flush the AGP TLB. It's done by the calling
function.
- agp_generic_unbind_memory: flush AGP TLB before unwiring pages
agp_bind_pages: assert that pages have been wired down
Currently, the TCP slow timer can starve TCP input processing while it
walks the list of connections in TIME_WAIT closing expired connections
due to contention on the global TCP pcbinfo lock.
To remediate, introduce a new global lock to protect the list of
connections in TIME_WAIT. Only acquire the TCP pcbinfo lock when
closing an expired connection. This limits the window of time when
TCP input processing is stopped to the amount of time needed to close
a single connection.
Approved by: jhb (mentor)
Don't use the synchronization endpoint unless referenced by the
isochronous endpoint descriptor used for the data transfers, hence the
synchronization feature might not be supposed to be supported [yet].
This makes seamless playback synced with the USB HOST clock work with
the DN32-USB module for Midas audio systems and possibly other similar
products from Klark Teknik.
Change the default log level for iSCSI target from 3 to 1. It should
have been 1 from the beginning; not sure how it ended up at 3.
Sponsored by: The FreeBSD Foundation
Enable LRO by default when available on vtnet interfaces
The prior change to not enable LRO by default has confused several
people. The configurations where LRO is problematic is not the
typical use case for VirtIO, and due to other issues, this often
requires checksum offloading to be disabled anyways.
