Commit Graph

28167 Commits

Author SHA1 Message Date
Konstantin Belousov
53dc09a8e6 Revert agp_intel.c part of the r274040 for now. There is a confusion
on my part about north bridge/GPU pci ids and use of aperture.

Leave the agp_intel.c out of static compilation on amd64, it makes the
things consistent with agp.ko.

Pointed out by:	tijl
Sponsored by:	The FreeBSD Foundation
MFC after:	13 days
2014-11-04 09:56:58 +00:00
Bryan Venteicher
46822c484c Create the tty device after the port is completely initialized
This fixes a race with a tty open before the host is the ready.

MFC after:	1 month
2014-11-03 22:17:25 +00:00
Bryan Venteicher
04434c94dd Add support for the multiport feature and fix hot plug races
MFC after:	1 month
2014-11-03 16:57:01 +00:00
Jean-Sébastien Pédron
c15af11534 drm: When reading connector mode tunables, list connectors
... and their associated tunables. This gives a way to know the list of
available connectors, no matter the driver.

The problem is that xrandr(1) can list connectors but it uses a
different naming.

MFC after:	1 week
2014-11-03 14:35:07 +00:00
Konstantin Belousov
a0cc5254d9 agp_intel.c provides support for AGP on Intel chipsets from 440/BX to
875.  This intersects with the agp_i810.c, which supports all Intels
from i810 to Core i5/7.  Both agp_intel.c and agp_i810.c are compiled
into kernel when device agp is specified in config, and agp_i810
attach seems to be selected by chance due to linking order.

Strip support for 810 and later from agp_intel.c.  Since 440-class
chipsets do not support any long-mode capable CPUs, remove agp_intel.c
from amd64 kernel file list.  Note that agp_intel.c is not compiled
into agp.ko on amd64 already.

Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2014-11-03 11:49:35 +00:00
Edward Tomasz Napierala
d2d52b0013 s/icl_pdu_new_bhs/icl_pdu_new/; no functional changes, just a little
nicer code.

Sponsored by:	The FreeBSD Foundation
2014-11-03 11:15:51 +00:00
Baptiste Daroussin
775fcb6e63 Remove check for obsolete FreeBSD versions
PR:		194517
Submitted by:	François Tigeot <ftigeot@wolfpond.org>
2014-11-03 11:11:45 +00:00
Edward Tomasz Napierala
08c5dbaeb0 s/icl_pdu_new/icl_pdu_new_empty/g; no functional changes.
Sponsored by:	The FreeBSD Foundation
2014-11-03 11:05:23 +00:00
Jean-Sébastien Pédron
4a60312011 drm: Take vt(4) default mode from loader tunables
By default, vt(4) gets the "preferred mode" from DRM, when using a DRM
video driver as its backend. The preferred mode is usually the native
screen resolution.

Now, if this mode isn't appropriate, a user can use loader tunables to
select a mode. The tunables are read in the following order:
    1. kern.vt.fb.modes.$connector_name
    2. kern.vt.fb.default_mode

For example, to set a 1024x768 mode, no matter the connector:
    kern.vt.fb.default_mode="1024x768"

To set a 800x600 mode only on the laptop builtin screen:
    kern.vt.fb.modes.LVDS-1="800x600"

MFC after:	1 week
2014-11-03 10:42:27 +00:00
Hans Petter Selasky
87273b37bb Reduce boot verbosity.
MFC:		3 days
2014-11-03 09:02:09 +00:00
Xin LI
1077321975 Don't assert random_adaptors_lock in random_adaptor_read_rate().
Reported by:	many
Pointy hat to:	delphij (for not testing the commit with WITNESS)
Approved by:	so
2014-11-03 04:41:29 +00:00
Xin LI
57cd52ca4c - Make sure random_adaptor accesses happen only when
random_adaptors_lock is held.
 - Use sx_sleep instead of tsleep in read and write path to allow
   another thread that registers a new random adapter when waiting.
   Assert that random_adaptor is not NULL after reacquiring the lock.
 - Capture EINTR/ERESTART from sx_sleep to allow the blocking cycle be
   stopped when user requests so, while there also make short
   read/write's return 0.
 - Move M_WAITOK allocations out of lock scope.

In collobration with:	kib, markm, ian, jilles
Reviewed by:	kib, markm
Approved by:	so
2014-11-02 23:30:50 +00:00
Jean-Sébastien Pédron
9fc2d29ead vt(4): Fix keyboard allocation when kbdmux(4) isn't used
The problem was that only the kbdmux keyboard index was saved in
vd->vd_keyboard. This index is -1 when kbdmux isn't used. In this
case, the keyboard was correctly allocated, but the returned index was
discarded.

PR:		194718
MFC after:	1 week
2014-11-02 16:04:48 +00:00
Tijl Coosemans
fa360767db Use default memory type for TTM buffer objects that may be cached.
MFC after:	1 week
2014-11-02 14:08:54 +00:00
Tijl Coosemans
0de6ac2e3c - agp_generic_unbind_memory: flush AGP TLB before unwiring pages
- agp_bind_pages: assert that pages have been wired down

MFC after:	1 month
2014-11-02 11:47:40 +00:00
Tijl Coosemans
a8ac51bbb6 In agp_amd_bind_page don't flush the AGP TLB. It's done by the calling
function.
2014-11-02 11:28:15 +00:00
Tijl Coosemans
4e612cddb9 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.

On x86 flushing the AGP TLB is done by an I/O operation or a store to a
MMIO register in uncacheable memory.  Both cases imply that WC buffers are
flushed so no memory barriers are needed.

On powerpc there is no WC memory type.  It maps to uncacheable memory and
two stores to uncacheable memory, such as to the GTT and then to an MMIO
register, are strongly ordered, so no memory barriers are needed either.

MFC after:	1 month
2014-11-02 11:26:37 +00:00
Jean-Sébastien Pédron
6e2c3e8562 drm: Lower priority of two messages related to invalid EDID
Like in r259717, the prority goes from "error" to "debug" to avoid
spamming logs when the connectors are polled.

MFC after:	1 week
2014-11-02 09:52:22 +00:00
Dag-Erling Smørgrav
8c9ba8414c Restore the auto-reseed logic, but move it to a much later point,
immediately before kick_init.

Approved by:	so (self)
2014-11-02 02:01:55 +00:00
Mateusz Guzik
cdcf242896 Fix up module unload for syscall_module_handler consumers.
After r273707 it was registering syscalls as static.

This fixes hwpmc module unload.

Reported by: markj
2014-11-01 22:36:40 +00:00
Jean-Sébastien Pédron
da49f6bcc3 vt(4): Adjust the cursor position after changing the window size
A new terminal_set_cursor() is added: it wraps the existing
teken_set_cursor() function.

In vtbuf_grow(), the cursor position is adjusted at the end of the
function. In vt_change_font(), we call terminal_set_cursor() just after
terminal_set_winsize_blank(), while the terminal is mute.

This fixes a bug where, after loading a kernel video driver which
increases the terminal window size, the cursor remains at its old
position, in other words, in the middle of the display content.

PR:		194421
MFC after:	1 week
2014-11-01 17:05:15 +00:00
Luiz Otavio O Souza
409c183904 Fix the build of non-FDT systems by moving the gpiobusvar.h header outside
the FDT #ifdef.

While here remove a few unused headers.
2014-11-01 10:40:29 +00:00
Luiz Otavio O Souza
9d35acacd3 Fix the gpiobus locking by using a more sane model where it isn't necessary
hold the gpiobus lock between the gpio calls.

gpiobus_acquire_lock() now accepts a third parameter which tells gpiobus
what to do when the bus is already busy.

When GPIOBUS_WAIT wait is used, the calling thread will be put to sleep
until the bus became free.

With GPIOBUS_DONTWAIT the calling thread will receive EWOULDBLOCK right
away and then it can act upon.

This fixes the gpioiic(4) locking issues that arises when doing multiple
concurrent access on the bus.
2014-10-31 19:15:14 +00:00
Mark Murray
10cb24248a This is the much-discussed major upgrade to the random(4) device, known to you all as /dev/random.
This code has had an extensive rewrite and a good series of reviews, both by the author and other parties. This means a lot of code has been simplified. Pluggable structures for high-rate entropy generators are available, and it is most definitely not the case that /dev/random can be driven by only a hardware souce any more. This has been designed out of the device. Hardware sources are stirred into the CSPRNG (Yarrow, Fortuna) like any other entropy source. Pluggable modules may be written by third parties for additional sources.

The harvesting structures and consequently the locking have been simplified. Entropy harvesting is done in a more general way (the documentation for this will follow). There is some GREAT entropy to be had in the UMA allocator, but it is disabled for now as messing with that is likely to annoy many people.

The venerable (but effective) Yarrow algorithm, which is no longer supported by its authors now has an alternative, Fortuna. For now, Yarrow is retained as the default algorithm, but this may be changed using a kernel option. It is intended to make Fortuna the default algorithm for 11.0. Interested parties are encouraged to read ISBN 978-0-470-47424-2 "Cryptography Engineering" By Ferguson, Schneier and Kohno for Fortuna's gory details. Heck, read it anyway.

Many thanks to Arthur Mesh who did early grunt work, and who got caught in the crossfire rather more than he deserved to.

My thanks also to folks who helped me thresh this out on whiteboards and in the odd "Hallway track", or otherwise.

My Nomex pants are on. Let the feedback commence!

Reviewed by:	trasz,des(partial),imp(partial?),rwatson(partial?)
Approved by:	so(des)
2014-10-30 21:21:53 +00:00
Tijl Coosemans
cf99ea5d13 Avoid possible overflow in agp_generic_alloc_memory.
MFC after:	1 week
2014-10-30 14:36:27 +00:00
Tijl Coosemans
1f733a5646 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
MFC after:	1 month
2014-10-30 14:26:36 +00:00
Tijl Coosemans
903fb143cf Add two new functions to the AGP driver KPI to bind/unbind arbitrary sets
of pages into the GTT.

Reviewed by:	kib
MFC after:	1 month
2014-10-30 11:27:03 +00:00
John-Mark Gurney
d14c434667 make this compile on arm... bus_size_t is not size_t, and it has
different sizes on different arches...
2014-10-29 02:23:50 +00:00
Navdeep Parhar
527e4e62ac Always request a completion for every work request for iWARP. The
initial MPA exchange must be tracked this way so that t4_tom's state for
the tid is all clean at the time the tid transitions to RDMA mode.  Once
it does, t4_tom is out of the way and iw_cxgbe uses the qp endpoints
directly.

Sponsored by:	Chelsio Communications
2014-10-28 18:10:57 +00:00
Hans Petter Selasky
0e1152fcc2 The SYSCTL data pointers can come from userspace and must not be
directly accessed. Although this will work on some platforms, it can
throw an exception if the pointer is invalid and then panic the kernel.

Add a missing SYSCTL_IN() of "SCTP_BASE_STATS" structure.

MFC after:	3 days
Sponsored by:	Mellanox Technologies
2014-10-28 12:00:39 +00:00
Marcelo Araujo
3bde81092c Drop __DECONST as well as few fixes of style(9).
Phabric:	D1012
Suggested by:	mjg, jhb
Reviewed by:	mjg, jhb
Sponsored by:	QNAP Systems Inc.
2014-10-28 03:42:09 +00:00
Navdeep Parhar
3030c8bce9 iwcm_event status needs to be populated for close_complete_upcall
Submitted by:	Hariprasad at Chelsio dot com
Sponsored by:	Chelsio Communications
2014-10-27 23:11:48 +00:00
Navdeep Parhar
d25d06afc0 Some cxgbe/iw_cxgbe fixes:
- Free rt in c4iw_connect only if it is allocated.
- Call soclose instead of so_shutdown if there is an abort from the peer.
- Close socket and return failure if TOE is not enabled.

Submitted by:	Hariprasad at Chelsio dot com
Sponsored by:	Chelsio Communications
2014-10-27 22:22:46 +00:00
Konstantin Belousov
9247911a58 Add a method to iicbus to request IIC_M_NOSTOP behaviour for multibyte
transfers to be default.  It simplifies porting code which assumes
such settings.

Discussed with:	avg, llos, nwhitehorn
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2014-10-27 07:51:26 +00:00
Konstantin Belousov
3f6732e8e0 Set the caching mode for the usermode mapping of the HPET registers
page to uncached.

Reviewed by:	rpaulo
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2014-10-25 21:01:50 +00:00
Navdeep Parhar
1284501329 cxgbe(4): bump up PF4's share of some global resources.
This increases the size of the per-port RSS slice and also allows the
driver to use a larger number of tx and rx queues.

MFC after:	2 weeks
2014-10-25 00:14:44 +00:00
Rui Paulo
f53389946d Add a sysctl to control the HPET allow_write behaviour.
Requested by:	kib
2014-10-24 21:08:36 +00:00
Rui Paulo
86b19a6984 HPET: avoid handling the multiple file-descriptor case.
It had two bugs: one where mmap was still allowed and another where
D_TRACKCLOSE doesn't handle all cases.

Thanks to jhb and kib for pointing them out.
MFC after:	1 week
2014-10-24 19:58:00 +00:00
Rui Paulo
3149cc9df6 HPET: create /dev/hpetN as a way to access HPET from userland.
In some cases, TSC is broken and special applications might benefit
from memory mapping HPET and reading the registers to count time.
Most often the main HPET counter is 32-bit only[1], so this only gives
the application a 300 second window based on the default HPET
interval.
Other applications, such as Intel's DPDK, expect /dev/hpet to be
present and use it to count time as well.

Although we have an almost userland version of gettimeofday() which
uses rdtsc in userland, it's not always possible to use it, depending
on how broken the multi-socket hardware is.

Install the acpi_hpet.h so that applications can use the HPET register
definitions.

[1] I haven't found a system where HPET's main counter uses more than
32 bit.  There seems to be a discrepancy in the Intel documentation
(claiming it's a 64-bit counter) and the actual implementation (a
32-bit counter in a 64-bit memory area).

MFC after:	1 week
Relnotes:	yes
2014-10-24 18:39:15 +00:00
Kevin Lo
66fef59616 Add D-Link DWA-123 rev D1 and Elecom WDC-150SU2M. 2014-10-24 15:36:30 +00:00
Xin LI
20e27addbf Return BUS_PROBE_DEFAULT instead of BUS_PROBE_VENDOR or 0 for in-tree
driver.  This change was verified by Microsoft.
2014-10-24 06:27:45 +00:00
Marcelo Araujo
f695e0468c Fix a leaked Storage Variable.
Phabric:	D981
Submitted by:	myself
Reported by:	Coverity
CID:		1248848
Reworked by:	kevlo
Reviewed by:	marcel, davide, ray, kevlo
Approved by:	marcel, kevlo
2014-10-24 05:39:32 +00:00
Luiz Otavio O Souza
88516632a7 Move the duplicated code to a single function.
No functional changes.
2014-10-23 23:20:04 +00:00
Luiz Otavio O Souza
b09d4398fa Provide a working GPIOBUS_IVAR() macro for FDT systems. 2014-10-23 23:12:30 +00:00
Rui Paulo
bdb4291f89 puc(4): add an entry for the Oxford Semiconductor OXPCIe952 1S1P card.
Submitted by:	Alex Burlyga <alex.burlyga.ietf at gmail.com>
MFC after:	1 week
2014-10-23 18:03:27 +00:00
Luiz Otavio O Souza
381fd7619b Fix a bug where some DTS layouts could cause the premature ending of the
search (i.e. without returning any result) and you would end up with a
random MAC address.

Change the search algorithm to a recursive one to ensure that all the nodes
on DTS will be verified.

The previous algorithm could not keep up if the DTS has too many sub-nodes.

While here, fix the punctuation on comments.
2014-10-23 13:47:19 +00:00
Jean-Sébastien Pédron
069f1c256a vt(4): Add PIO_VFONT_DEFAULT ioctl to restore the default builtin font
To restore the default font using vidcontrol(1), use the "-f" flag
without an argument:
    vidcontrol -f < /dev/ttyv0

PR:		193910
Differential Revision:	https://reviews.freebsd.org/D971
Submitted by:	Marcin Cieslak <saper@saper.info>
Reviewed by:	ray@, emaste@
Approved by:	ray@
MFC after:	1 week
2014-10-23 12:38:05 +00:00
Bryan Venteicher
6f744ddee4 Add VirtIO console driver
Support for the multiport feature is mostly implemented, but currently
disabled due to some potential races in the hot plug code paths.

Requested by:	marcel
MFC after:	1 month
Relnotes:	yes
2014-10-23 04:47:32 +00:00
Navdeep Parhar
53f49a7bd8 cxgbe/iw_cxgbe: wake up waiters after flushing the qp.
Obtained from:	Chelsio
2014-10-22 18:55:44 +00:00
Roger Pau Monné
ddcc16cf2f netback: change xnb naming convention
Current FreeBSD netback names the interface with xnb<device unit>, but
this is not suitable for usage with the Xen toolstack, which expects
something similar to <prefix><domid><handle>. In order to solve this,
change the netback naming convention to use xnb<domid>.<handle>.

Sponsored by: Citrix Systems R&D

dev/xen/netback/netback.c:
 - Change netback to use the nomenclature stated above.
2014-10-22 17:09:12 +00:00