Commit Graph

2458 Commits

Author SHA1 Message Date
Alan Cox
83a90bffd8 Eliminate kmem_malloc()'s unused arena parameter. (The arena parameter
became unused in FreeBSD 12.x as a side-effect of the NUMA-related
changes.)

Reviewed by:	kib, markj
Discussed with:	jeff, re@
Differential Revision:	https://reviews.freebsd.org/D16825
2018-08-21 16:43:46 +00:00
Alan Cox
44d0efb215 Eliminate kmem_alloc_contig()'s unused arena parameter.
Reviewed by:	hselasky, kib, markj
Discussed with:	jeff
Differential Revision:	https://reviews.freebsd.org/D16799
2018-08-20 15:57:27 +00:00
Matt Macy
381388b9c4 add snps IP uart support / genaralize UART
This is an amalgam of a patch by Doug Ambrisko to
generalize uart_acpi_find_device, imp moving the
ACPI table to uart_dev_ns8250.c and advice by jhb
to work around a bug in the EPYC 3151 BIOS
(the BIOS incorrectly marks the serial ports as
disabled)

Reviewed by: imp
MFC after: 8 weeks
Differential Revision: https://reviews.freebsd.org/D16432
2018-08-19 21:10:21 +00:00
Alan Cox
94d0f0877d Oops. r338030 didn't eliminate the unused arena argument from all of
kmem_alloc_attr()'s callers.  Correct that mistake.
2018-08-18 22:35:19 +00:00
Ruslan Bukin
5bcd113c91 Query MVPConf0.PVPE for number of CPUs.
Rather than hard-coding the number of CPUs to 2, look up the PVPE field
in MVPConf0, as the valid VPE numbers are from 0 to PVPE inclusive.

Submitted by:	"James Clarke" <jrtc4@cam.ac.uk>
Reviewed by:	br
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D16644
2018-08-14 16:29:10 +00:00
Ruslan Bukin
b3410bc623 Avoid repeated address calculation for malta_ap_boot.
Submitted by:	"James Clarke" <jrtc4@cam.ac.uk>
Reviewed by:	br, arichardson
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D16655
2018-08-14 16:26:44 +00:00
Konstantin Belousov
e45b89d23d Add pmap_is_valid_memattr(9).
Discussed with:	alc
Sponsored by:	The FreeBSD Foundation, Mellanox Technologies
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D15583
2018-08-01 18:45:51 +00:00
Konstantin Belousov
c9bbc3ef29 Make cache coherency attributes definitions available in machine/vm.h on MIPS.
Move definitions from cpuregs.h into the cca.h, and include cca.h into vm.h.
This is required to make MIPS MD memattr definitions usable in userspace.

Sponsored by:	The FreeBSD Foundation, Mellanox Technologies
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D15583
2018-08-01 18:35:17 +00:00
Alan Somers
6040822c4e Make timespecadd(3) and friends public
The timespecadd(3) family of macros were imported from NetBSD back in
r35029. However, they were initially guarded by #ifdef _KERNEL. In the
meantime, we have grown at least 28 syscalls that use timespecs in some
way, leading many programs both inside and outside of the base system to
redefine those macros. It's better just to make the definitions public.

Our kernel currently defines two-argument versions of timespecadd and
timespecsub.  NetBSD, OpenBSD, and FreeDesktop.org's libbsd, however, define
three-argument versions.  Solaris also defines a three-argument version, but
only in its kernel.  This revision changes our definition to match the
common three-argument version.

Bump _FreeBSD_version due to the breaking KPI change.

Discussed with:	cem, jilles, ian, bde
Differential Revision:	https://reviews.freebsd.org/D14725
2018-07-30 15:46:40 +00:00
Andriy Gapon
2559473944 follow-up to r336635, update TAILQ to CK_SLIST for ie_handlers
arm, mips and sparc64 were affected.
2018-07-23 15:36:55 +00:00
Conrad Meyer
1b0909d51a OpenCrypto: Convert sessions to opaque handles instead of integers
Track session objects in the framework, and pass handles between the
framework (OCF), consumers, and drivers.  Avoid redundancy and complexity in
individual drivers by allocating session memory in the framework and
providing it to drivers in ::newsession().

Session handles are no longer integers with information encoded in various
high bits.  Use of the CRYPTO_SESID2FOO() macros should be replaced with the
appropriate crypto_ses2foo() function on the opaque session handle.

Convert OCF drivers (in particular, cryptosoft, as well as myriad others) to
the opaque handle interface.  Discard existing session tracking as much as
possible (quick pass).  There may be additional code ripe for deletion.

Convert OCF consumers (ipsec, geom_eli, krb5, cryptodev) to handle-style
interface.  The conversion is largely mechnical.

The change is documented in crypto.9.

Inspired by
https://lists.freebsd.org/pipermail/freebsd-arch/2018-January/018835.html .

No objection from:	ae (ipsec portion)
Reported by:	jhb
2018-07-18 00:56:25 +00:00
Warner Losh
50b1a01ecb Fix compile error introduced in r336245.
Include sys/boot.h to pickup the prototypes for boot_parse_arg.
2018-07-17 23:00:52 +00:00
Alan Cox
37657ad5fb Invalidate the mapping before updating its physical address.
Doing so ensures that all threads sharing the pmap have a consistent
view of the mapping.  This fixes the problem described in the commit
log message for r329254 without the overhead of an extra fault in the
common case.  (Once the riscv pmap_enter() implementation is similarly
modified, the workaround added in r329254 can be removed, reducing the
overhead of CoW faults.)

See also r335784 for amd64.  The mips implementation of pmap_enter()
already reused the PV entry from the old mapping.

Reviewed by:	kib, markj
MFC after:	3 weeks
Differential Revision:	https://reviews.freebsd.org/D16199
2018-07-13 17:12:50 +00:00
Warner Losh
eed42ff1d5 Use boot_parse_* to parse command line args and retire cut-n-paste
code that was substantially identical.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D16205
2018-07-13 16:43:17 +00:00
Sean Bruno
f295c140cf Remove duplicate configuration values as they are already defined in
std.AR_MIPS_BASE
2018-07-06 13:31:06 +00:00
Matt Macy
ab3059a8e7 Back pcpu zone with domain correct pages
- Change pcpu zone consumers to use a stride size of PAGE_SIZE.
  (defined as UMA_PCPU_ALLOC_SIZE to make future identification easier)

- Allocate page from the correct domain for a given cpu.

- Don't initialize pc_domain to non-zero value if NUMA is not defined
  There are some misconceptions surrounding this field. It is the
  _VM_ NUMA domain and should only ever correspond to valid domain
  values as understood by the VM.

The former slab size of sizeof(struct pcpu) was somewhat arbitrary.
The new value is PAGE_SIZE because that's the smallest granularity
which the VM can allocate a slab for a given domain. If you have
fewer than PAGE_SIZE/8 counters on your system there will be some
memory wasted, but this is obviously something where you want the
cache line to be coming from the correct domain.

Reviewed by: jeff
Sponsored by: Limelight Networks
Differential Revision:  https://reviews.freebsd.org/D15933
2018-07-06 02:06:03 +00:00
Andrew Turner
2bf9501287 Create a new macro for static DPCPU data.
On arm64 (and possible other architectures) we are unable to use static
DPCPU data in kernel modules. This is because the compiler will generate
PC-relative accesses, however the runtime-linker expects to be able to
relocate these.

In preparation to fix this create two macros depending on if the data is
global or static.

Reviewed by:	bz, emaste, markj
Sponsored by:	ABT Systems Ltd
Differential Revision:	https://reviews.freebsd.org/D16140
2018-07-05 17:13:37 +00:00
Sean Bruno
31ed2b3b06 Remove redundant device ar71xx_wdog which is now included from
std.AR_MIPS_BASE
2018-07-05 17:11:55 +00:00
Sean Bruno
455ad53299 Remove redundant AH_DEBUG_ALQ. 2018-07-05 17:09:46 +00:00
Sean Bruno
96744f0225 Make ZSTD a real option via ZSTDIO.
It looks like the intent was to allow ZSTD support to be
compiled into the kernel with options ZSTDIO. But it doesn't look
like that was ever implemented or I'm missing how to do it.

I did a cursory audit of kernel config files and made a decision to
enable ZSTDIO in riscv GENERIC and mips MALTA configurations.  All other
kernel configurations already had this option in their kernel configs
but they didn't do anything useful as the feature was declared as
"standard" prior to this.

Reviewed by:	cem allanjude
Differential Revision:	https://reviews.freebsd.org/D16007
2018-07-05 17:07:23 +00:00
John Baldwin
a0399b42a5 Support 2GB of memory on Malta systems with FreeBSD/mips.
When 2GB of memory is enabled for QEMU's Malta emulation, the physical
memory ends at an address of 2^32 - 1.  This causes an integer overflow
to zero when computing the upper bound of the second phys_avail[] range.
As a result, FreeBSD/mips kernels were only using the first 256MB of
RAM and ignoring the remaining 1.75GB.  To work around this, truncate
the extended memory size to 2GB minus one page for 32-bit mips kernels.

Sponsored by:	DARPA / AFRL
Differential Revision:	https://reviews.freebsd.org/D16027
2018-06-28 21:27:34 +00:00
Matt Macy
239f5f541b hwpmc: yet another missed fixup 2018-06-08 18:54:47 +00:00
Matt Macy
eb7c901995 hwpmc: simplify calling convention for hwpmc interrupt handling
pmc_process_interrupt takes 5 arguments when only 3 are needed.
cpu is always available in curcpu and inuserspace can always be
derived from the passed trapframe.

While facially a reasonable cleanup this change was motivated
by the need to workaround a compiler bug.

core2_intr(cpu, tf) ->
  pmc_process_interrupt(cpu, ring, pmc, tf, inuserspace) ->
    pmc_add_sample(cpu, ring, pm, tf, inuserspace)

In the process of optimizing the tail call the tf pointer was getting
clobbered:

(kgdb) up
    at /storage/mmacy/devel/freebsd/sys/dev/hwpmc/hwpmc_mod.c:4709
4709                                pmc_save_kernel_callchain(ps->ps_pc,
(kgdb) up
1205                    error = pmc_process_interrupt(cpu, PMC_HR, pm, tf,

resulting in a crash in pmc_save_kernel_callchain.
2018-06-08 04:58:03 +00:00
Matt Macy
fc16061f19 MALTA64EL: disable modules until objcopy is fixed 2018-05-24 23:58:57 +00:00
Warner Losh
49ab568eff Make memmove an alias for memcpy
memcpy was an alias for bcopy with arg swap. This code handles
overlapping copies, so making memmove an alias is safe. We can
eliminate the call from libkern's memmove to this bcopy as a result.

Differential Revision: https://reviews.freebsd.org/D15374
2018-05-24 21:11:24 +00:00
John Baldwin
964b24b42d Include kernel modules for MALTA kernels.
Sponsored by:	DARPA / AFRL
2018-05-16 17:54:40 +00:00
Andriy Gapon
c9c4d38aa8 followup to r332730/r332752: set kdb_why to "trap" for fatal traps
This change updates arm, arm64 and mips achitectures.  Additionally, it
removes redundant checks for kdb_active where it already results in
kdb_reenter() and adds kdb_reenter() calls where they were missing.

Some architectures check the return value of kdb_trap(), but some don't.
I haven't changed any of that.

Some trap handling routines have a return code.  I am not sure if I
provided correct ones for returns after kdb_reenter().  kdb_reenter
should never return unless kdb_jmpbufp is NULL for some reason.

Only compile tested for all affected architectures.  There can be bugs
resulting from my poor understanding of architecture specific details.

Reported by:	jhb
Reviewed by:	jhb, eadler
MFC after:	4 weeks
Differential Revision: https://reviews.freebsd.org/D15431
2018-05-16 06:52:08 +00:00
Mark Johnston
20f85b1ddd Print the dump progress indicator after calling dump_start().
Dumpers may wish to print messages from an initialization hook; this
change ensures that such messages aren't mixed with output from the
generic dump code.

MFC after:	1 week
2018-05-01 17:32:43 +00:00
John Baldwin
983c0fd434 Use %p to print uintptr_t values rather than %z in MIPS single-step code. 2018-04-27 21:22:32 +00:00
Li-Wen Hsu
57e453099e Fix mips32 build after r332951.
Approved by:	jhb
2018-04-25 19:46:39 +00:00
John Baldwin
f07562ebb4 Fix PT_STEP single-stepping for mips.
Note that GDB at least implements single stepping for MIPS using software
breakpoints explicitly rather than using PT_STEP, so this has only been
tested via tests in ptrace_test which now pass rather than fail.

- Fix several places to use uintptr_t instead of int for virtual addresses.
- Check for errors from ptrace_read_int() when setting a breakpoint for a
  step.
- Properly check for errors from ptrace_write_int() as it returns non-zero,
  not negative values on failure.
- Change the error returns for ptrace_read_int() and ptrace_write_int() from
  ENOMEM to EFAULT.
- Clear a single step breakpoint when it traps rather than waiting for it
  to be cleared from ptrace().  This matches the behavior of the arm port
  and in general seems a bit more reliable than waiting for ptrace() to
  clear it via FIX_SSTEP.
- Drop the PROC_LOCK around ptrace_write_int() in ptrace_clear_single_step()
  since it can sleep.
- Reorder the breakpoint handler in trap() to only read the instruction if
  the address matches the current thread's breakpoint address.
- Replace various #if 0'd debugging printfs with KTR_PTRACE traces.

Tested on:	mips64
2018-04-24 17:53:16 +00:00
John Baldwin
e920aebafe Don't fetch the current instruction for faults on user "trap" instructions.
The value of 'instr' was not used to handle the fault.

Reported by:	GCC's -Wunused-but-set-variable
2018-04-24 17:31:20 +00:00
John Baldwin
beea560039 Use a cleaner test for the branch delay (BD) bit in DELAYBRANCH.
Rather than casting the value of cause to int and checking for a negative
value to determine if bit 31 is set, use a binary and with MIPS_CR_BR_DELAY.
2018-04-24 17:22:17 +00:00
John Baldwin
45726c1dae Relock PROC_LOCK before one failure case in ptrace_single_step().
The MIPS ptrace_single_step() unlocks the PROC_LOCK while reading and
writing instructions from userland.  One failure case was not reacquiring
the lock before returning.
2018-04-24 05:42:10 +00:00
John Baldwin
93fc184b82 Report proper signal codes for SIGTRAP traps on MIPS.
- Use TRAP_TRACE for traps after stepping via PT_STEP.
- Use TRAP_BRKPT for software breakpoint traps and watchpoint traps.

This was tested via the recently added siginfo ptrace() tests.  PT_STEP on
MIPS has several bugs that prevent it from working yet, but this does fix
the ptrace__breakpoint_siginfo test on MIPS.
2018-04-24 05:33:17 +00:00
John Baldwin
bd061c3998 Expose breakpoint() to userland from <machine/cpufunc.h> on MIPS.
Enable ptrace() tests using breakpoint on MIPS as well.

Tested on:	mips64
MFC after:	1 month
2018-04-24 05:26:28 +00:00
Brooks Davis
9c11d8d483 Remove the unused fuwintr() and suiwintr() functions.
Half of implementations always failed (returned (-1)) and they were
previously used in only one place.

Reviewed by:	kib, andrew
Obtained from:	CheriBSD
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D15102
2018-04-17 18:04:28 +00:00
Brooks Davis
427be5bb3a Remove unused implementations of copyoutstr().
Also remove the commented out documentation.  The documentation arrived
with the import of the copy.9 manpage.  I suspect the implementations
came from NetBSD while bootstrapping the Arm and MIPS ports.

Reviewed by:	andrew, jmallett
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D15108
2018-04-17 17:20:04 +00:00
Brooks Davis
b6cb3eab1e Remove unused badaddr() function.
Reviewed by:	jmallett
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D15078
2018-04-16 17:43:26 +00:00
Warner Losh
9d89a9f326 No need to force md code to define a macro that's the same as
_BYTE_ORDER. Use that instead.
2018-04-16 13:52:23 +00:00
Ruslan Bukin
b8f915ab24 Convert atse(4) driver for Altera Triple-Speed Ethernet MegaCore to use
xdma(4) interface.

This allows us to switch between Altera mSGDMA or SoftDMA engines used by
atse(4) device.

This also makes atse(4) driver become 25% smaller.

Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D9618
2018-04-13 15:59:24 +00:00
Ruslan Bukin
33cf9122f3 Add SMP support for BERI CPU.
Obtained from:	CheriBSD
Sponsored by:	DARPA, AFRL
2018-04-12 17:43:19 +00:00
Ruslan Bukin
3d5b3b0a44 Tune xDMA interface slightly:
o Move descriptors allocation to DMA engine driver
o Add generic xdma_request() routine
o Add less-generic scatter-gather application based on xdma interface

Typical operation flow in peripheral device driver is:

1. Get xDMA controller
sc->xdma_tx = xdma_ofw_get(sc->dev, "tx");

2. Allocate virtual channel
sc->xchan_tx = xdma_channel_alloc(sc->xdma_tx, caps);

3. Setup transfer status callback
xdma_setup_intr(sc->xchan_tx, my_tx_intr, sc, &sc->ih_tx);

4. Request a transfer(s)
ret = xdma_request(sc->xchan_tx, &req);

5. Free the channel
xdma_channel_free(sc->xdma_tx);

6. Free the controller
xdma_put(sc->xdma_tx);

Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D14971
2018-04-12 15:36:24 +00:00
Oleksandr Tymoshenko
f7604b1b27 Align OF_getencprop_alloc API with OF_getencprop and OF_getprop_alloc
Change OF_getencprop_alloc semantics to be combination of malloc and
OF_getencprop and return size of the property, not number of elements
allocated.

For the use cases where number of elements is preferred introduce
OF_getencprop_alloc_multi helper function that copies semantics
of OF_getencprop_alloc prior to this change.

This is to make OF_getencprop_alloc and OF_getencprop_alloc_multi
function signatures consistent with OF_getencprop_alloc and
OF_getencprop_alloc_multi.

Functionality-wise this patch is mostly rename of OF_getencprop_alloc
to OF_getencprop_alloc_multi except two calls in ofw_bus_setup_iinfo
where 1 was used as a block size.
2018-04-09 22:06:16 +00:00
Oleksandr Tymoshenko
217d17bcd3 Clean up OF_getprop_alloc API
OF_getprop_alloc takes element size argument and returns number of
elements in the property. There are valid use cases for such behavior
but mostly API consumers pass 1 as element size to get string
properties. What API users would expect from OF_getprop_alloc is to be
a combination of malloc + OF_getprop with the same semantic of return
value. This patch modifies API signature to match these expectations.

For the valid use cases with element size != 1 and to reduce
modification scope new OF_getprop_alloc_multi function has been
introduced that behaves the same way OF_getprop_alloc behaved prior to
this patch.

Reviewed by:	ian, manu
Differential Revision:	https://reviews.freebsd.org/D14850
2018-04-08 22:59:34 +00:00
Brooks Davis
6469bdcdb6 Move most of the contents of opt_compat.h to opt_global.h.
opt_compat.h is mentioned in nearly 180 files. In-progress network
driver compabibility improvements may add over 100 more so this is
closer to "just about everywhere" than "only some files" per the
guidance in sys/conf/options.

Keep COMPAT_LINUX32 in opt_compat.h as it is confined to a subset of
sys/compat/linux/*.c.  A fake _COMPAT_LINUX option ensure opt_compat.h
is created on all architectures.

Move COMPAT_LINUXKPI to opt_dontuse.h as it is only used to control the
set of compiled files.

Reviewed by:	kib, cem, jhb, jtl
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D14941
2018-04-06 17:35:35 +00:00
Landon J. Fuller
be9a13138e bhnd(4): Use the new BHND_CAP_BP64 capability flag to exclude DMA
translations unsupported by the backplane.
2018-03-29 19:48:50 +00:00
John Baldwin
8356a9abbb Move remaining EF_MIPS_* flags to <sys/elf_common.h>.
Reviewed by:	brooks
Sponsored by:	DARPA / AFRL
Differential Revision:	https://reviews.freebsd.org/D14789
2018-03-23 19:31:52 +00:00
Olivier Houchard
98bd8a108d In __sync_bool_compare_and_swap(), return true if the returned value is the
same as the expected one, not the desired one.

Pointy hat to:	cognet
MFC after:	3 days
2018-03-23 17:25:19 +00:00
Ed Maste
fc2a8776a2 Rename assym.s to assym.inc
assym is only to be included by other .s files, and should never
actually be assembled by itself.

Reviewed by:	imp, bdrewery (earlier)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D14180
2018-03-20 17:58:51 +00:00
Brooks Davis
97519ff698 MIPS: Implement fue*word* and casueword* in assembly.
Remove NO_FUEWORD so the 'e' variants are wrapped by the non-'e'
variants.  This is more correct and leaves sparc64 as the outlier.

Reviewed by:	jmallett, kib
Obtained from:	CheriBSD
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D14603
2018-03-12 22:10:06 +00:00
Brooks Davis
36cbb006f2 Remove reference to unimplemented fuiword, etc.
We don't support Harvard architectures.
2018-03-06 18:28:55 +00:00
Jonathan T. Looney
beb2406556 amd64: Protect the kernel text, data, and BSS by setting the RW/NX bits
correctly for the data contained on each memory page.

There are several components to this change:
 * Add a variable to indicate the start of the R/W portion of the
   initial memory.
 * Stop detecting NX bit support for each AP.  Instead, use the value
   from the BSP and, if supported, activate the feature on the other
   APs just before loading the correct page table.  (Functionally, we
   already assume that the BSP and all APs had the same support or
   lack of support for the NX bit.)
 * Set the RW and NX bits correctly for the kernel text, data, and
   BSS (subject to some caveats below).
 * Ensure DDB can write to memory when necessary (such as to set a
   breakpoint).
 * Ensure GDB can write to memory when necessary (such as to set a
   breakpoint).  For this purpose, add new MD functions gdb_begin_write()
   and gdb_end_write() which the GDB support code can call before and
   after writing to memory.

This change is not comprehensive:
 * It doesn't do anything to protect modules.
 * It doesn't do anything for kernel memory allocated after the kernel
   starts running.
 * In order to avoid excessive memory inefficiency, it may let multiple
   types of data share a 2M page, and assigns the most permissions
   needed for data on that page.

Reviewed by:	jhb, kib
Discussed with:	emaste
MFC after:	2 weeks
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D14282
2018-03-06 14:28:37 +00:00
Warner Losh
ef1fcaf0f5 Do not include float interfaces when using libsa.
We don't support float in the boot loaders, so don't include
interfaces for float or double in systems headers. In addition, take
the unusual step of spiking double and float to prevent any more
accidental seepage.
2018-02-23 04:04:25 +00:00
Konstantin Belousov
2c0f13aa59 vm_wait() rework.
Make vm_wait() take the vm_object argument which specifies the domain
set to wait for the min condition pass.  If there is no object
associated with the wait, use curthread' policy domainset.  The
mechanics of the wait in vm_wait() and vm_wait_domain() is supplied by
the new helper vm_wait_doms(), which directly takes the bitmask of the
domains to wait for passing min condition.

Eliminate pagedaemon_wait().  vm_domain_clear() handles the same
operations.

Eliminate VM_WAIT and VM_WAITPFAULT macros, the direct functions calls
are enough.

Eliminate several control state variables from vm_domain, unneeded
after the vm_wait() conversion.

Scetched and reviewed by:	jeff
Tested by:	pho
Sponsored by:	The FreeBSD Foundation, Mellanox Technologies
Differential revision:	https://reviews.freebsd.org/D14384
2018-02-20 10:13:13 +00:00
Jeff Roberson
e958ad4cf3 Make v_wire_count a per-cpu counter(9) counter. This eliminates a
significant source of cache line contention from vm_page_alloc().  Use
accessors and vm_page_unwire_noq() so that the mechanism can be easily
changed in the future.

Reviewed by:	markj
Discussed with:	kib, glebius
Tested by:	pho (earlier version)
Sponsored by:	Netflix, Dell/EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D14273
2018-02-12 22:53:00 +00:00
Warner Losh
62bca77843 Move __va_list and related defines to sys/sys/_types.h
__va_list and related defines are identical in all the
ARCH/include/_types.h files. Move them to sys/sys/_types.h

Sponsored by: Netflix
2018-02-12 14:48:20 +00:00
Warner Losh
982e7bdafc We don't support gcc < 4.2.1, so varargs.h now is just #error
always. Unifdef for versions prior to 4.2.1 and remove now-unused
header files.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D14323
2018-02-12 14:48:14 +00:00
Warner Losh
33e959abab Use standard pattern for stdargs.h
We don't support older compilers. Most of the code in these files is
for pre-3.0 gcc, which is at least 15 years obsolete. Move to using
phk's sys/_stdargs.h for all these platforms.

Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D14323
2018-02-12 14:48:05 +00:00
Mark Johnston
ab7c09f121 Use vm_page_unwire_noq() instead of directly modifying page wire counts.
No functional change intended.

Reviewed by:	alc, kib (previous revision)
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D14266
2018-02-08 19:28:51 +00:00
Alex Richardson
f7925608a5 Fix compilation of mips_postboot_fixup() with a C11 compiler
The _Alignas specifier must come before the declaration and not after. It
works if _Alignas() expands to __attribute__(aligned(x)) which was the only
case I tested before.

Approved By:	jhb (mentor)
2018-02-07 16:58:01 +00:00
Adrian Chadd
037fb51a2e [ar71xx] Fix the TL-wdr3600/tl-wdr4300 hints in the new world order.
Tested:

* tl-wdr4300
2018-02-07 09:35:47 +00:00
Jeff Roberson
e2068d0bcd Use per-domain locks for vm page queue free. Move paging control from
global to per-domain state.  Protect reservations with the free lock
from the domain that they belong to.  Refactor to make vm domains more
of a first class object.

Reviewed by:    markj, kib, gallatin
Tested by:      pho
Sponsored by:   Netflix, Dell/EMC Isilon
Differential Revision:  https://reviews.freebsd.org/D14000
2018-02-06 22:10:07 +00:00
Alex Richardson
e911aac76a Make mips_postboot_fixup work when building the kernel with clang+lld
The compiler/linker can align fake_preload anyway it would like. When
building the kernel with gcc+bfd this always happened to be a multiple of 8.
When I built the kernel with clang and linked with lld fake_preload
happened to only be aligned to 4 bytes which caused a an ADDRS trap because
the compiler will emit sd instructions to store to this buffer.

Reviewed By:	jhb, imp
Approved By:	jhb (mentor)
Differential Revision: https://reviews.freebsd.org/D14018
2018-02-06 15:41:15 +00:00
Brooks Davis
7dea788b91 Garbage collect trailing whitespace.
Sponsored by:	DARPA, AFRL
2018-02-05 18:06:54 +00:00
Adrian Chadd
286a5a1c7e [ar71xx] Fix DB120 AHB device hints in the new world order.
This allows the on-chip (AHB bus) device to attach correctly as a module.

Tested:

* DB120, AR9344 (SoC + 2x2 2G wifi) + QCA9580 PCI 3x3 5G wifi
2018-02-05 04:48:41 +00:00
Adrian Chadd
431017d066 [ar71xx] AR934x is a MIPS74k board - use the right hwpmc module 2018-02-05 04:47:13 +00:00
Adrian Chadd
ea3c60a1e5 [ar71xx] New world order - don't reference ath_pci here, it's a module now 2018-02-05 04:46:36 +00:00
Adrian Chadd
a597af9415 [atheros] Update QCA953x support to use the new hints. 2018-02-01 22:01:53 +00:00
Adrian Chadd
1246f4fe1c [atheros] Fix DIR-825C1 to use the new hints.
Tested:

* DIR-825C1
2018-02-01 22:01:11 +00:00
Adrian Chadd
2786bc9951 [atheros] teach these two boards about the new hints location as well. 2018-02-01 22:00:38 +00:00
Adrian Chadd
118c9d516e [atheros] Teach the QCA955x SoC code about the new hints stuff. 2018-02-01 22:00:05 +00:00
Adrian Chadd
7f1a46e2e8 [atheros] Fix-up the base address stuff after I did a drive-by with the calibration data location.
The old way required the data to be present really early and copied it from
memory mapped NOR flash; this only worked during kernel boot but not for
ath/ath_hal modules.

Tested:

* AR9331, Carambola2, ath/hal modules.
2018-02-01 21:58:52 +00:00
John Baldwin
ec56d65061 Consistently use 16-byte alignment for MIPS N32 and N64.
- Add a new <machine/abi.h> header to hold constants shared between C
  and assembly such as CALLFRAME_SZ.
- Add a new STACK_ALIGN constant to <machine/abi.h> and use it to
  replace hardcoded constants in the kernel and makecontext().  As a
  result of this, ensure the stack pointer on N32 and N64 is 16-byte
  aligned for N32 and N64 after exec(), after pthread_create(), and
  when sending signals rather than 8-byte aligned.

Reviewed by:	jmallett
Sponsored by:	DARPA / AFRL
Differential Revision:	https://reviews.freebsd.org/D13875
2018-01-31 17:36:39 +00:00
Pedro F. Giffuni
ac2fffa4b7 Revert r327828, r327949, r327953, r328016-r328026, r328041:
Uses of mallocarray(9).

The use of mallocarray(9) has rocketed the required swap to build FreeBSD.
This is likely caused by the allocation size attributes which put extra pressure
on the compiler.

Given that most of these checks are superfluous we have to choose better
where to use mallocarray(9). We still have more uses of mallocarray(9) but
hopefully this is enough to bring swap usage to a reasonable level.

Reported by:	wosch
PR:		225197
2018-01-21 15:42:36 +00:00
Nathan Whitehorn
9a8196ce19 Remove SFBUF_OPTIONAL_DIRECT_MAP and such hacks, replacing them across the
kernel by PHYS_TO_DMAP() as previously present on amd64, arm64, riscv, and
powerpc64. This introduces a new MI macro (PMAP_HAS_DMAP) that can be
evaluated at runtime to determine if the architecture has a direct map;
if it does not (or does) unconditionally and PMAP_HAS_DMAP is either 0 or
1, the compiler can remove the conditional logic.

As part of this, implement PHYS_TO_DMAP() on sparc64 and mips64, which had
similar things but spelled differently. 32-bit MIPS has a partial direct-map
that maps poorly to this concept and is unchanged.

Reviewed by:		kib
Suggestions from:	marius, alc, kib
Runtime tested on:	amd64, powerpc64, powerpc, mips64
2018-01-19 17:46:31 +00:00
Pedro F. Giffuni
cf47945d85 Fix build after r328020.
Should have noticed earlier but the build was already broken by another
change.

Reported by:	Ravi Pokala
2018-01-16 06:04:39 +00:00
Pedro F. Giffuni
98fffe4ecb mips: make some use of mallocarray(9).
Focus on code where we are doing multiplications within malloc(9). None of
these ire likely to overflow, however the change is still useful as some
static checkers can benefit from the allocation attributes we use for
mallocarray.

This initial sweep only covers malloc(9) calls with M_NOWAIT. No good
reason but I started doing the changes before r327796 and at that time it
was convenient to make sure the sorrounding code could handle NULL values.

X-Differential revision: https://reviews.freebsd.org/D13837
2018-01-15 21:13:30 +00:00
Jeff Roberson
6f4acaf4c9 Add support for NUMA domains to bus dma tags. This causes all memory
allocated with a tag to come from the specified domain if it meets the
other constraints provided by the tag.  Automatically create a tag at
the root of each bus specifying the domain local to that bus if
available.

Reviewed by:	jhb, kib
Tested by:	pho
Sponsored by:	Netflix, Dell/EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D13545
2018-01-12 23:34:16 +00:00
Jeff Roberson
ab3185d15e Implement NUMA support in uma(9) and malloc(9). Allocations from specific
domains can be done by the _domain() API variants.  UMA also supports a
first-touch policy via the NUMA zone flag.

The slab layer is now segregated by VM domains and is precise.  It handles
iteration for round-robin directly.  The per-cpu cache layer remains
a mix of domains according to where memory is allocated and freed.  Well
behaved clients can achieve perfect locality with no performance penalty.

The direct domain allocation functions have to visit the slab layer and
so require per-zone locks which come at some expense.

Reviewed by:	Attilio (a slightly older version)
Tested by:	pho
Sponsored by:	Netflix, Dell/EMC Isilon
2018-01-12 23:25:05 +00:00
John Baldwin
a27a25f759 Set the 'FR' bit in the status register for N32 kernels.
This permits N32 hard-float binaries to use 64-bit floating point
registers (which is what N32 binaries expect) matching the N64 ABI.

Reviewed by:	imp, jmallett
Sponsored by:	DARPA / AFRL
Differential Revision:	https://reviews.freebsd.org/D13830
2018-01-10 21:08:43 +00:00
Warner Losh
7167e16b49 Remove sys/mips/rmi. It's been unmaintained since 2011. This hardware
is now unobtanium. It's only had API changes in the last 7 years, and
is responsible for a very large number of them. In addition, there's a
lot of code that reimplements base FreeBSD functionality, diminishing
the chances it still works. Without hardware to teset it on, or
prospects of obtaining such hardware and without vendor support, it's
time to move on.

Suggested by: kan@ in mips@ retirement discussion
2018-01-01 05:13:03 +00:00
Warner Losh
c3dbef68d5 Remove support for IDT. Only the RouterBoard RB533 used this chip, and
it's at least 5 years out of production. I couldn't find a used one on
ebay and other secondary markets just now, nor when I tried 4 years
ago. It dates from the initial project/mips2 merge 8 years ago, and
hasn't been updated since.

Discussed on: mips@ (with some dissent)
2018-01-01 04:10:36 +00:00
Warner Losh
ada611f6ad Retire old ADM 5120 port. It never grew much beyond the original port.
It came into the tree with the project/mips merge 8 years ago. At the
time, it was hard to find a board with enough RAM to run. Now FreeBSD
requires at least 2x the RAM it did then. No changes have happened to
this port apart from API churn and license tagging since then. It ran
OK at the time it was committed, but no sightings in the wild have
happened since shortly after it was committed.

https://www.linux-mips.org/wiki/Adm5120_devices lists a bunch of
boards that were available 5 years ago (but are no longer
available). The beefiest one had only 64MB of RAM which is too
small. The Mirktik RB1xx never had more than 32MB.

Also remove confusing QEMU config file that never ever worked in QEMU
for mips. MALTA is used for that. Another of my past mistakes, false
starts that never amounted to anything.

Discussed on: mips@ (with some dissent)
2018-01-01 04:10:31 +00:00
Warner Losh
5daa7f27c5 Remove sys/mips/alchemy. It was still-born when I committed it and it
never got better. It never worked on real hardware and is still mostly
stubs after 8 years when I added it. It has had no real update in that
time apart from API churn. It was added just so it didn't get lost in
the project/mips merge, but maybe it should have been lost as nothing
has come of it. It is time to give up the ghost on this one.

Approved by: me, shooting my own dog
Discussed on: mips@
2018-01-01 04:10:25 +00:00
Warner Losh
039f26fab0 Remove sys/mips/rt305x. It's been replaced by sys/mips/mediatek.
OK'd by: Stanislav Galabov (who did both)
Discussed on: mips@
2018-01-01 04:06:24 +00:00
Colin Percival
d5d7606c0c Use the TSLOG framework to record entry/exit timestamps for DELAY and
_vprintf; these functions are called in many places and can contribute
meaningfully to the total time spent booting.
2017-12-31 09:24:41 +00:00
Eitan Adler
caa7e52f3f kernel: Fix several typos and minor errors
- duplicate words
- typos
- references to old versions of FreeBSD

Reviewed by:	imp, benno
2017-12-27 03:23:21 +00:00
Michael Zhilin
ebff39fb9b [mips] fix compilation of TP-WN1043ND kernel configuration
This compilation issue has been found thanks to freebsd-wifi-build:
 - gpioiic requires "gpio_if.h", so "device gpio" is mandatory
 - rtl8366rb works over MDIO interface, so "device mdio" is mandatory

Compilation is checked on FreeBSD 12-CURRENT machine.
2017-12-26 19:50:23 +00:00
Konstantin Belousov
7aea69e54a Remove mips MD atomic_load_64 and atomic_store_64.
The only users of the functions were db_read_bytes() and
db_write_bytes() ddb(4) interfaces.  Replace the calls with direct
reads and writes, which are automatically atomic on 64bits and n32.

Note that removed assembler implementation for mips32 is not atomic
anyway.

Reviewed by:	jhb
Discussed with:	imp
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D13586
2017-12-22 23:27:03 +00:00
Konstantin Belousov
37f48d5aba Fix mips build after introduction of MD definitions of atomic_load_64
and atomic_store_64.

The MD definitions are provided for LP64 only, while mips also uses
them for 32bit and n32.  Only define mips variants for 32bit and n32
and change the syntax to match common definitions.

Note that this commit does not fix 32bit asm implementation to follow
new KBI, this will be fixed later.  The functions are only used for 8
byte ddb accesses so the known bug does not prevent normal kernel
operations.

Sponsored by:	The FreeBSD Foundation
2017-12-21 23:39:00 +00:00
Konstantin Belousov
30d4f9e888 Add atomic_load(9) and atomic_store(9) operations.
They provide relaxed-ordered atomic access semantic.  Due to the
FreeBSD memory model, the operations are syntaxical wrappers around
the volatile accesses.  The volatile qualifier is used to ensure that
the access not optimized out and in turn depends on the volatile
semantic as implemented by supported compilers.

The motivation for adding the operation is to help people coming from
other systems or knowing the C11/C++ standards where atomics have
special type and require use of the special access operations.  It is
still the case that FreeBSD requires plain load and stores of aligned
integer types to be atomic.

Suggested by:	jhb
Reviewed by:	alc, jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D13534
2017-12-19 09:59:20 +00:00
Landon J. Fuller
566ca880a1 bhnd(4): Include board_devid in the bhnd_board_info structure, and populate
the expected default board_vendor value on MIPS SoCs.

This is required by bwn(4) to differentiate between single-band and
dual-band device variants that otherwise share a common chip ID.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
2017-12-14 01:58:05 +00:00
Bruce Evans
fb3cc1c37d Move instantiation of msgbufp from 9 MD files to subr_prf.c.
This variable should be pure MI except possibly for reading it in MD
dump routines.  Its initialization was pure MD in 4.4BSD, but FreeBSD
changed this in r36441 in 1998.  There were many imperfections in
r36441.  This commit fixes only a small one, to simplify fixing the
others 1 arch at a time.  (r47678 added support for
special/early/multiple message buffer initialization which I want in
a more general form, but this was too fragile to use because hacking
on the msgbufp global corrupted it, and was only used for 5 hours in
-current...)
2017-12-07 07:55:38 +00:00
Pedro F. Giffuni
796df753f4 SPDX: Consider code from Carnegie-Mellon University.
Interesting cases, most likely from CMU Mach sources.
2017-11-30 15:48:35 +00:00
Scott Long
c15269ccb8 It's time to retire AHC_REG_PRETTY_PRINT and AHD_REG_PRETTY_PRINT from
the standard kernels.  They are still available as custom compile
options.
2017-11-29 23:41:49 +00:00
Pedro F. Giffuni
19d3b47b92 sys/mips: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 15:07:26 +00:00
Landon J. Fuller
2f909a9f74 bhnd(4): Add a basic ChipCommon GPIO driver sufficient to support bwn(4)
The driver is functional on both BHND Wi-Fi adapters and MIPS SoCs, but
does not currently include support for features not required by bwn(4),
including GPIO interrupt handling.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D12708
2017-11-22 23:10:20 +00:00
Landon J. Fuller
4e96bf3a37 bhnd(4): extend the PMU APIs to support bwn(4)
The bwn(4) driver requires a number of extensions to the bhnd(4) PMU
interface to support external configuration of PLLs, LDOs, and other
parameters that require chipset or PHY-specific workarounds.

These changes add support for:

- Writing raw voltage register values to PHY-specific LDO regulator
  registers (required by LP-PHY).
- Enabling/disabling PHY-specific LDOs (required by LP-PHY)
- Writing to arbitrary PMU chipctrl registers (required for common PHY PLL
  reset support).
- Requesting chipset/PLL-specific spurious signal avoidance modes.
- Querying clock frequency and latency.

Additionally, rather than updating legacy PWRCTL support to conform to the
new PMU interface:

- PWRCTL API is now provided by a bhnd_pwrctl_if.m interface.
- Since PWRCTL is only found in older SSB-based chipsets, translation from
  bhnd(4) bus APIs to corresponding PWRCTL operations is now handled
  entirely within the siba(4) driver.
- The PWRCTL-specific host bridge clock gating APIs in bhnd_bus_if.m have
  been lifted out into a standalone bhnd_pwrctl_hostb_if.m interface.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D12664
2017-11-22 20:27:46 +00:00
Landon J. Fuller
9ed453245b bhnd(4): Add support for querying DMA address translation parameters
BHND Wi-Fi chipsets and SoCs share a common DMA engine, operating within
backplane address space. To support host DMA on Wi-Fi chipsets, the bridge
core maps host address space onto the backplane; any host addresses must
be translated to their corresponding backplane address.


- Defines a new bhnd_get_dma_translation(9) API to support querying DMA
  address translation parameters from the bhnd(4) bus.
- Extends bhndb(4) to provide DMA translation descriptors from a DMA
  address translation table defined in the host bridge-specific
  bhndb_hwcfg.
- Defines bhndb(4) DMA address translation tables for all supported host
  bridge cores.
- Extends mips/broadcom's bhnd_nexus driver to return an identity (no-op)
  DMA translation descriptor; no translation is required when addressing
  the SoC backplane.

Approved by:	adrian (mentor)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D12582
2017-11-21 23:25:22 +00:00
Landon J. Fuller
caeff9a3c2 bhnd(4): implement MIPS and PCI(e) interrupt support
On BHND MIPS SoCs, this replaces the use of hard-coded MIPS IRQ#s in the
common bhnd(4) core drivers; we now register an INTRNG child PIC that
handles routing of backplane interrupt vectors via the MIPS core.

On BHND PCI devices, backplane interrupt vectors are now routed to the
PCI/PCIe host bridge core when bus_setup_intr() is called, where they are
dispatched by the PCI core via a host interrupt (e.g. INTx/MSI).

The bhndb(4) bridge driver tracks registered interrupt handlers for the
bridged bhnd(4) devices and manages backplane interrupt routing, while
delegating actual bus interrupt setup/teardown to the parent bus on behalf
of the bridged cores.

Approved by:	adrian (mentor, implicit)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D12518
2017-11-21 23:15:20 +00:00
Landon J. Fuller
e60ff6a3b4 Preemptively map MIPS INTRNG interrupts on non-FDT MIPS targets
This replaces a partial workaround introduced in r305527 that was
incompatible with nested INTRNG interrupt controllers if not also using
FDT.

On non-FDT MIPS INTRNG targets, we now preemptively produce a set of fixed
mappings for the MIPS IRQ range during nexus attach. On FDT targets,
OFW_BUS_MAP_INTR() remains responsible for mapping the MIPS IRQs.

Approved by:	adrian (mentor)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D12385
2017-11-21 01:54:48 +00:00
Brooks Davis
114aedb30e Remove a couple variables that are unused after r325790.
Reported by:	rpokala
2017-11-20 22:18:24 +00:00
Pedro F. Giffuni
51369649b0 sys: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:43:44 +00:00
Pedro F. Giffuni
df57947f08 spdx: initial adoption of licensing ID tags.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

Initially, only tag files that use BSD 4-Clause "Original" license.

RelNotes:	yes
Differential Revision:	https://reviews.freebsd.org/D13133
2017-11-18 14:26:50 +00:00
Justin Hibbits
ce7fd13aff Convert BERI to use ofw_parse_bootargs()
Summary:
ofw_parse_bootargs() was added in r306065 as an attempt to unify the
various copies of the same code.  This simply migrates BERI to use it.

Reviewed By: brooks
Differential Revision: https://reviews.freebsd.org/D12962
2017-11-14 03:23:46 +00:00
Jeff Roberson
8d6fbbb867 Replace manyinstances of VM_WAIT with blocking page allocation flags
similar to the kernel memory allocator.

This simplifies NUMA allocation because the domain will be known at wait
time and races between failure and sleeping are eliminated.  This also
reduces boilerplate code and simplifies callers.

A wait primitive is supplied for uma zones for similar reasons.  This
eliminates some non-specific VM_WAIT calls in favor of more explicit
sleeps that may be satisfied without new pages.

Reviewed by:	alc, kib, markj
Tested by:	pho
Sponsored by:	Netflix, Dell/EMC Isilon
2017-11-08 02:39:37 +00:00
Konstantin Belousov
93b09f581a Remove badsect(8).
Failure modes of the modern (that is, produced in the last 25 years)
hard drives and SSDs made the utility outdated.  Since the kernel
interface to support it was removed in r324853, cut the userspace
remnants as well.

Discussed with:	bde (who does not like the removal)
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2017-11-05 22:00:54 +00:00
Michael Zhilin
26cb32ad01 [mips] Pin control configuration for MediaTek RT2880
RT2880 is MIPS4Kc SoC used in many SOHO routers. This commits adds GPIO pin
control configuration of RT2880.

Submitted by:	Hiroki Mori <yamori83@yahoo.co.jp>
Reviewed by:	mizhka, sgalabov
Differential Revision:	https://reviews.freebsd.org/D12648
2017-10-31 11:29:16 +00:00
Eitan Adler
a2aef24aa3 Update several more URLs
- Primarily http -> https
- Primarily FreeBSD project URLs
2017-10-29 08:17:03 +00:00
Michal Meloun
904d8c492f Add AT_HWCAP2 ELF auxiliary vector.
- allocate value for new AT_HWCAP2 auxiliary vector on all platforms.
 - expand 'struct sysentvec' by new 'u_long *sv_hwcap2', in exactly
   same way as for AT_HWCAP.

MFC after:	1 month
Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D12699
2017-10-21 12:05:01 +00:00
Bjoern A. Zeeb
8e94025b41 With r181803 on 2008-08-17 23:27:27Z the first VIMAGE commit went into
HEAD.  Enable VIMAGE in GENERIC kernels and some others (where GENERIC does
not exist) on HEAD.

Disable building LINT-VIMAGE with VIMAGE being default.

This should give it a lot more exposure in the run-up to 12 to help
us evaluate whether to keep it on by default or not.
We are also hoping to get better performance testing.
The feature can be disabled using nooptions.

Requested by:		many
Reviewed by:		kristof, emaste, hiren
X-MFC after:		never
Relnotes:		yes
Differential Revision:	https://reviews.freebsd.org/D12639
2017-10-20 21:40:59 +00:00
John Baldwin
d8371cb18e Remove CPU_HAVEFPU.
Instead, use a runtime decision to handle COP1 traps.  If floating point
support is present in the current CPU, enable saving of the floating point
state.  If support is not present, fail with SIGILL.

Reviewed by:	imp, br
Sponsored by:	DARPA / AFRL
Differential Revision:	https://reviews.freebsd.org/D12707
2017-10-18 17:23:16 +00:00
Mark Johnston
46fcd1af63 Move kernel dump offset tracking into MI code.
All of the kernel dump implementations keep track of the current offset
("dumplo") within the dump device. However, except for textdumps, they
all write the dump sequentially, so we can reduce code duplication by
having the MI code keep track of the current offset. The new
dump_append() API can be used to write at the current offset.

This is needed to implement support for kernel dump compression in the
MI kernel dump code.

Also simplify dump_encrypted_write() somewhat: use dump_write() instead
of duplicating its bounds checks, and get rid of the redundant offset
tracking.

Reviewed by:	cem
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D11722
2017-10-18 15:38:05 +00:00
Landon J. Fuller
89294a783a bhnd: Add support for supplying bus I/O callbacks when initializing an EROM
parser.

This allows us to use the EROM parser API in cases where the standard bus
space I/O APIs are unsuitable. In particular, this will allow us to parse
the device enumeration table directly from bhndb(4) drivers, prior to
full attach and configuration of the bridge.

Approved by:	adrian (mentor)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D12510
2017-09-27 19:48:34 +00:00
Landon J. Fuller
8e35bf8319 bhnd: Implement bhnd(4) platform device registration.
Add bhnd(4) API for explicitly registering BHND platform devices (ChipCommon,
PMU, NVRAM, etc) with the bus, rather than walking the newbus hierarchy to
discover platform devices. These devices are now also refcounted; attempting
to deregister an actively used platform device will return EBUSY.

This resolves a lock ordering incompatibility with bwn(4)'s firmware loading
threads; previously it was necessary to acquire Giant to protect newbus access
when locating and querying the NVRAM device.

Approved by:	adrian (mentor)
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D12392
2017-09-27 19:44:23 +00:00
Landon J. Fuller
011e84e0a7 Add MIPS32/64 Rev2 CP0 intctl register definitions.
Approved by:	adrian (mentor)
Differential Revision:	https://reviews.freebsd.org/D12300
2017-09-15 19:56:21 +00:00
John Baldwin
c2f37b9245 Add AT_HWCAP and AT_EHDRFLAGS on all platforms.
A new 'u_long *sv_hwcap' field is added to 'struct sysentvec'.  A
process ABI can set this field to point to a value holding a mask of
architecture-specific CPU feature flags.  If an ABI does not wish to
supply AT_HWCAP to processes the field can be left as NULL.

The support code for AT_EHDRFLAGS was already present on all systems,
just the #define was not present.  This is a step towards unifying the
AT_* constants across platforms.

Reviewed by:	kib
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D12290
2017-09-14 14:26:55 +00:00
Gordon Tetlow
4572fb3faf Deorbit catman. The tradeoff of disk for performance has long since tipped
in favor of just rendering the manpage instead of relying on pre-formatted
catpages. Note, this does not impede the ability to use existing catpages,
it just removes the utility to generate them.

Reviewed by:	imp, allanjude
Approved by:	emaste (mentor)
Differential Revision:	https://reviews.freebsd.org/D12317
2017-09-13 16:35:16 +00:00
Kurt Lidl
a8273e4371 Enable dtrace support for mips64 and the ERL kernel config
Turn on the required options in the ERL config file, and ensure
that the fbt module is listed as a dependency for mips in
the modules/dtrace/dtraceall/dtraceall.c file.

PR: 		220346
Reviewed by:	gnn, markj
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D12227
2017-09-06 03:19:52 +00:00
Kurt Lidl
77e430c686 Fix whitespace on "options" to be <space><tab>, no functional change 2017-09-04 20:10:34 +00:00
Ed Maste
118ee8bdea xls_ehci: eliminate 'format string is not a string literal' warning
Reported by:	Clang
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2017-08-30 22:58:11 +00:00
Ed Maste
7a8d38a717 octeon_ebt3000_cf: eliminate 'format string is not a string literal' warning
Reported by:	Clang
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2017-08-30 22:54:11 +00:00
John Baldwin
b8b3a64000 Apply 64k padding to stack pointer for 32-bit processes.
In particular, MIPS now has COMPAT_FREEBSD32 for n64 kernels so this
cannot be ignored for n64.  On the other hand, it is unneeded for o32
MIPS kernels as the issue is only present when using 64-bit registers,
so remove the workaround from o32 kernels.

Reviewed by:	jmallett
Sponsored by:	DARPA / AFRL
2017-08-30 19:21:11 +00:00
Ed Maste
3460f018f9 arge: correct bzero sizeof (pointed-to object, not pointer)
Reported by:	Clang
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2017-08-30 17:38:55 +00:00
John Baldwin
cccc713394 Allow execution of FreeBSD/mips shared objects.
This was applied to all other FreeBSD architectures in r169846 but wasn't
included in the intial MIPS import.

Sponsored by:	DARPA / AFRL
2017-08-30 00:14:36 +00:00
Conrad Meyer
70dd00d6c0 Fix limits.h constants to have correct type on MIPS
Use correctly typed constants to avoid bogus errors like
https://lists.freebsd.org/pipermail/svn-src-all/2017-August/150400.html
(like x86 _limits.h).

Reported by:	bde, asomers
Reviewed by:	mjoras, tinderbox
Sponsored by:	Dell EMC Isilon
2017-08-26 03:21:12 +00:00
John Baldwin
3c0e63a4c4 Enable hardfloat CPU instructions in the FP exception handler.
This permits compiling with clang's integrated assembler.

Sponsored by:	DARPA / AFRL
2017-08-21 21:48:24 +00:00
Bruce Evans
7692d200c1 Use better hard-coded defaults for the cursor shape, and remove nearby
redundant initializations.

Hard-code base = 0, height = (approx. 1/8 of the boot-time font height)
in all cases, and remove the BIOS/MD support for setting these values.
This asks for an underline cursor sized for the boot-time font instead
of various less hard-coded but worse values.  I used that think that
the x86 BIOS always gave the same values as the above hard-coding, but
on 1 of my systems it gives the wrong value of base = 1.

The remaining BIOS fields are shift_state and bell_pitch.  These are now
consistently not explicitly reinitialized to 0.  All sc_get_bios_value()
functions except x86's are now empty, and the only useful thing that x86
returns is shift_state.  This really belongs in atkbdc, but heavier
use of the BIOS to read the more useful typematic rate has been removed
there.  fb still makes much heavier use of the BIOS.
2017-08-19 19:33:16 +00:00
Mark Johnston
01938d3666 Rename mkdumpheader() and group EKCD functions in kern_shutdown.c.
This helps simplify the code in kern_shutdown.c and reduces the number
of globally visible functions.

No functional change intended.

Reviewed by:	cem, def
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D11603
2017-08-18 04:04:09 +00:00
Mark Johnston
50ef60dabe Factor out duplicated kernel dump code into dump_{start,finish}().
dump_start() and dump_finish() are responsible for writing kernel dump
headers, optionally writing the key when encryption is enabled, and
initializing the initial offset into the dump device.

Also remove the unused dump_pad(), and make some functions static now that
they're only called from kern_shutdown.c.

No functional change intended.

Reviewed by:	cem, def
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D11584
2017-08-18 03:52:35 +00:00
Xin LI
e6f9d1ce45 Plug memory leak in arge_encap().
Reported by:	Ilja Van Sprundel <ivansprundel ioactive.com>
Submitted by:	Domagoj Stolfa <domagoj.stolfa gmail.com>
Reviewed by:	adrian
MFC after:	3 days
2017-08-15 06:01:36 +00:00
Ian Lepore
90cff13c3c Remove the old ds1374 driver and use the ds13rtc driver instead. Adjust
several mips config files accordingly.
2017-08-13 22:07:42 +00:00
Adrian Chadd
ff0c85fcaf [ar71xx] get rid of ath_pci - it's built as a module now. 2017-07-28 01:17:38 +00:00
Adrian Chadd
56e91aa977 [ar933x] make carambola2 work again!
* Add in the hints needed for AR933x ath(4) support - this is the nicer way
  that allows ath to be a module;
* ATH_EEPROM_FIRMWARE is also required for all AR933x chipsets.

Tested:

* Carambola2, AR933x
2017-07-23 07:10:41 +00:00
Adrian Chadd
1656a5b991 [ar933x] re-add the ar71xx_apb device for AR933x.
This prevents the console from working!

Tested:

* carambola2, AR933x
2017-07-23 07:02:10 +00:00
Edward Tomasz Napierala
a71f4ea813 Make ddb(4) disassembler (x/i) use n32 register names.
Obtained from:	CheriBSD
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2017-07-06 15:08:51 +00:00
Adrian Chadd
e9c4d0912a [ar724x] put in explicit memory barriers now that read/write register no longer
implicitly do them.

They were removed as part of my "fix this to actually work" a few commits
ago in this file.

Tested:

* AP93, AR7240 + AR9280 PCI
2017-07-06 04:56:23 +00:00
Adrian Chadd
1f6ca76bc0 [ar71xx] Start migrating the AR934x based boards over to the new world order.
This unifies the PCI hints with the AHB/NOR hint syntax.

Tested:

* DIR825C1, AR9344 SoC / 2x2 2G + AR9580 PCI 2x2 5G
2017-07-06 04:06:25 +00:00
Jason A. Harmening
eb36b1d0bc Clean up MD pollution of bus_dma.h:
--Remove special-case handling of sparc64 bus_dmamap* functions.
  Replace with a more generic mechanism that allows MD busdma
  implementations to generate inline mapping functions by
  defining WANT_INLINE_DMAMAP in <machine/bus_dma.h>.  This
  is currently useful for sparc64, x86, and arm64, which all
  implement non-load dmamap operations as simple wrappers
  around map objects which may be bus- or device-specific.

--Remove NULL-checked bus_dmamap macros.  Implement the
  equivalent NULL checks in the inlined x86 implementation.
  For non-x86 platforms, these checks are a minor pessimization
  as those platforms do not currently allow NULL maps.  NULL
  maps were originally allowed on arm64, which appears to have
  been the motivation behind adding arm[64]-specific barriers
  to bus_dma.h, but that support was removed in r299463.

--Simplify the internal interface used by the bus_dmamap_load*
  variants and move it to bus_dma_internal.h

--Fix some drivers that directly include sys/bus_dma.h
  despite the recommendations of bus_dma(9)

Reviewed by:	kib (previous revision), marius
Differential Revision:	https://reviews.freebsd.org/D10729
2017-07-01 05:35:29 +00:00
Adrian Chadd
b6c4248397 [mips] [ar71xx] Since the wlan/ath drivers use ALQ, ensure we build the module
here otherwise we can't load said module.
2017-06-29 03:58:01 +00:00
Adrian Chadd
05e89dd3a1 [mips] make this compile again after all of the config changes. 2017-06-29 03:57:22 +00:00
Kurt Lidl
58deaaf128 Add IPSEC support to mips ERL kernel config file 2017-06-26 18:28:00 +00:00
Adrian Chadd
da150e22ac [ar71xx] migrate all of the duplicate configuration out into a shared config file.
This brings the default configurations (drivers, net80211 settings, etc) and some
of the shared configuration into std.AR_MIPS_BASE.  I haven't yet moved the
-current settings (witness, memguard, etc) into it.

This should simplify building a lot of the same test images for my MIPS AP board
development and testing.

This is a work in progress; it's not designed to be perfect!
2017-06-16 00:44:23 +00:00
Konstantin Belousov
2d88da2f06 Move struct syscall_args syscall arguments parameters container into
struct thread.

For all architectures, the syscall trap handlers have to allocate the
structure on the stack.  The structure takes 88 bytes on 64bit arches
which is not negligible.  Also, it cannot be easily found by other
code, which e.g. caused duplication of some members of the structure
to struct thread already.  The change removes td_dbg_sc_code and
td_dbg_sc_nargs which were directly copied from syscall_args.

The structure is put into the copied on fork part of the struct thread
to make the syscall arguments information correct in the child after
fork.

This move will also allow several more uses shortly.

Reviewed by:	jhb (previous version)
Sponsored by:	The FreeBSD Foundation
MFC after:	3 weeks
X-Differential revision:	https://reviews.freebsd.org/D11080
2017-06-12 21:03:23 +00:00
Konstantin Belousov
43f41dd393 Make struct syscall_args visible to userspace compilation environment
from machine/proc.h, consistently on all architectures.

Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	3 weeks
X-Differential revision:	https://reviews.freebsd.org/D11080
2017-06-12 20:53:44 +00:00
Edward Tomasz Napierala
77c97f893a Remove unused tlb_write_random().
Sponsored by:	DARPA, AFRL
2017-06-05 11:04:22 +00:00
Edward Tomasz Napierala
ab1318b7ed Remove extraneous parentheses.
Sponsored by:	DARPA, AFRL
2017-06-05 10:59:47 +00:00
Adrian Chadd
bf3bb1b028 [ar71xx] rename AR724X_BASE -> std.AR724X 2017-05-31 16:32:33 +00:00
Adrian Chadd
bba819843e [AP93] fix up the arge0/arge1 hints. 2017-05-29 07:57:01 +00:00