13 Jan, 2019
1 commit
-
commit fdd669684655c07dacbdb0d753fd13833de69a33 upstream.
Calling the test program genwqe_cksum with the default buffer size of
2MB triggers the following kernel warning on s390:WARNING: CPU: 30 PID: 9311 at mm/page_alloc.c:3189 __alloc_pages_nodemask+0x45c/0xbe0
CPU: 30 PID: 9311 Comm: genwqe_cksum Kdump: loaded Not tainted 3.10.0-957.el7.s390x #1
task: 00000005e5d13980 ti: 00000005e7c6c000 task.ti: 00000005e7c6c000
Krnl PSW : 0704c00180000000 00000000002780ac (__alloc_pages_nodemask+0x45c/0xbe0)
R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 EA:3
Krnl GPRS: 00000000002932b8 0000000000b73d7c 0000000000000010 0000000000000009
0000000000000041 00000005e7c6f9b8 0000000000000001 00000000000080d0
0000000000000000 0000000000b70500 0000000000000001 0000000000000000
0000000000b70528 00000000007682c0 0000000000277df2 00000005e7c6f9a0
Krnl Code: 000000000027809e: de7195001000 ed 1280(114,%r9),0(%r1)
00000000002780a4: a774fead brc 7,277dfe
#00000000002780a8: a7f40001 brc 15,2780aa
>00000000002780ac: 92011000 mvi 0(%r1),1
00000000002780b0: a7f4fea7 brc 15,277dfe
00000000002780b4: 9101c6b6 tm 1718(%r12),1
00000000002780b8: a784ff3a brc 8,277f2c
00000000002780bc: a7f4fe2e brc 15,277d18
Call Trace:
([] __alloc_pages_nodemask+0x1a2/0xbe0)
[] s390_dma_alloc+0xfe/0x310
[] __genwqe_alloc_consistent+0xfa/0x148 [genwqe_card]
[] genwqe_mmap+0xca/0x248 [genwqe_card]
[] mmap_region+0x4e2/0x778
[] do_mmap+0x2ac/0x3e0
[] vm_mmap_pgoff+0xd6/0x118
[] SyS_mmap_pgoff+0xdc/0x268
[] SyS_old_mmap+0x8c/0xb0
[] sysc_tracego+0x14/0x1e
[] 0x3ffacf87dc6turns out the check in __genwqe_alloc_consistent uses "> MAX_ORDER"
while the mm code uses ">= MAX_ORDER". Fix genwqe.Cc: stable@vger.kernel.org
Signed-off-by: Christian Borntraeger
Signed-off-by: Frank Haverkamp
Signed-off-by: Greg Kroah-Hartman
14 Nov, 2018
1 commit
-
commit 0ab93e9c99f8208c0a1a7b7170c827936268c996 upstream.
The genweq_add_file and genwqe_del_file by caching current without
using reference counting embed the assumption that a file descriptor
will never be passed from one process to another. It even embeds the
assumption that the the thread that opened the file will be in
existence when the process terminates. Neither of which are
guaranteed to be true.Therefore replace caching the task_struct of the opener with
pid of the openers thread group id. All the knowledge of the
opener is used for is as the target of SIGKILL and a SIGKILL
will kill the entire process group.Rename genwqe_force_sig to genwqe_terminate, remove it's unncessary
signal argument, update it's ownly caller, and use kill_pid
instead of force_sig.The work force_sig does in changing signal handling state is not
relevant to SIGKILL sent as SEND_SIG_PRIV. The exact same processess
will be killed just with less work, and less confusion. The work done
by force_sig is really only needed for handling syncrhonous
exceptions.It will still be possible to cause genwqe_device_remove to wait
8 seconds by passing a file descriptor to another process but
the possible user after free is fixed.Fixes: eaf4722d4645 ("GenWQE Character device and DDCB queue")
Cc: stable@vger.kernel.org
Cc: Greg Kroah-Hartman
Cc: Frank Haverkamp
Cc: Joerg-Stephan Vogt
Cc: Michael Jung
Cc: Michael Ruettger
Cc: Kleber Sacilotto de Souza
Cc: Sebastian Ott
Cc: Eberhard S. Amann
Cc: Gabriel Krisman Bertazi
Cc: Guilherme G. Piccoli
Signed-off-by: "Eric W. Biederman"
Signed-off-by: Greg Kroah-Hartman
02 Mar, 2017
1 commit
-
We are going to split out of , which
will have to be picked up from other headers and a couple of .c files.Create a trivial placeholder file that just
maps to to make this patch obviously correct and
bisectable.Include the new header in the files that are going to need it.
Acked-by: Linus Torvalds
Cc: Mike Galbraith
Cc: Peter Zijlstra
Cc: Thomas Gleixner
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar
23 Feb, 2017
1 commit
-
Pull char/misc driver updates from Greg KH:
"Here is the big char/misc driver patchset for 4.11-rc1.Lots of different driver subsystems updated here: rework for the
hyperv subsystem to handle new platforms better, mei and w1 and extcon
driver updates, as well as a number of other "minor" driver updates.All of these have been in linux-next for a while with no reported
issues"* tag 'char-misc-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (169 commits)
goldfish: Sanitize the broken interrupt handler
x86/platform/goldfish: Prevent unconditional loading
vmbus: replace modulus operation with subtraction
vmbus: constify parameters where possible
vmbus: expose hv_begin/end_read
vmbus: remove conditional locking of vmbus_write
vmbus: add direct isr callback mode
vmbus: change to per channel tasklet
vmbus: put related per-cpu variable together
vmbus: callback is in softirq not workqueue
binder: Add support for file-descriptor arrays
binder: Add support for scatter-gather
binder: Add extra size to allocator
binder: Refactor binder_transact()
binder: Support multiple /dev instances
binder: Deal with contexts in debugfs
binder: Support multiple context managers
binder: Split flat_binder_object
auxdisplay: ht16k33: remove private workqueue
auxdisplay: ht16k33: rework input device initialization
...
14 Jan, 2017
1 commit
-
Since we need to change the implementation, stop exposing internals.
Provide kref_read() to read the current reference count; typically
used for debug messages.Kills two anti-patterns:
atomic_read(&kref->refcount)
kref->refcount.counterSigned-off-by: Peter Zijlstra (Intel)
Cc: Andrew Morton
Cc: Greg Kroah-Hartman
Cc: Linus Torvalds
Cc: Paul E. McKenney
Cc: Peter Zijlstra
Cc: Thomas Gleixner
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar
11 Jan, 2017
1 commit
-
In AER recovery, pci_error_handlers.link_reset() is never called,
drop it now.Signed-off-by: Cao jin
Signed-off-by: Greg Kroah-Hartman
31 Oct, 2016
1 commit
-
Simply the interrupt setup by using the new PCI layer helpers.
One odd thing about this driver is that it looks like it could request
multiple MSI vectors, but it will then only ever use a single one.Signed-off-by: Christoph Hellwig
Acked-by: Gabriel Krisman Bertazi
Acked-by: Frank Haverkamp =
Signed-off-by: Greg Kroah-Hartman
28 Oct, 2016
1 commit
-
When interrupting an application which was allocating DMAable
memory, it was possible, that the DMA memory was deallocated
twice, leading to the error symptoms below.Thanks to Gerald, who analyzed the problem and provided this
patch.I agree with his analysis of the problem: ddcb_cmd_fixups() ->
genwqe_alloc_sync_sgl() (fails in f/lpage, but sgl->sgl != NULL
and f/lpage maybe also != NULL) -> ddcb_cmd_cleanup() ->
genwqe_free_sync_sgl() (double free, because sgl->sgl != NULL and
f/lpage maybe also != NULL)In this scenario we would have exactly the kind of double free that
would explain the WARNING / Bad page state, and as expected it is
caused by broken error handling (cleanup).Using the Ubuntu git source, tag Ubuntu-4.4.0-33.52, he was able to reproduce
the "Bad page state" issue, and with the patch on top he could not reproduce
it any more.------------[ cut here ]------------
WARNING: at /build/linux-o03cxz/linux-4.4.0/arch/s390/include/asm/pci_dma.h:141
Modules linked in: qeth_l2 ghash_s390 prng aes_s390 des_s390 des_generic sha512_s390 sha256_s390 sha1_s390 sha_common genwqe_card qeth crc_itu_t qdio ccwgroup vmur dm_multipath dasd_eckd_mod dasd_mod
CPU: 2 PID: 3293 Comm: genwqe_gunzip Not tainted 4.4.0-33-generic #52-Ubuntu
task: 0000000032c7e270 ti: 00000000324e4000 task.ti: 00000000324e4000
Krnl PSW : 0404c00180000000 0000000000156346 (dma_update_cpu_trans+0x9e/0xa8)
R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 EA:3
Krnl GPRS: 00000000324e7bcd 0000000000c3c34a 0000000027628298 000000003215b400
0000000000000400 0000000000001fff 0000000000000400 0000000116853000
07000000324e7b1e 0000000000000001 0000000000000001 0000000000000001
0000000000001000 0000000116854000 0000000000156402 00000000324e7a38
Krnl Code: 000000000015633a: 95001000 cli 0(%r1),0
000000000015633e: a774ffc3 brc 7,1562c4
#0000000000156342: a7f40001 brc 15,156344
>0000000000156346: 92011000 mvi 0(%r1),1
000000000015634a: a7f4ffbd brc 15,1562c4
000000000015634e: 0707 bcr 0,%r7
0000000000156350: c00400000000 brcl 0,156350
0000000000156356: eb7ff0500024 stmg %r7,%r15,80(%r15)
Call Trace:
([] dma_update_trans+0x90/0x228)
[] s390_dma_unmap_pages+0x64/0x160
[] s390_dma_free+0x62/0x98
[] __genwqe_free_consistent+0x56/0x70 [genwqe_card]
[] genwqe_free_sync_sgl+0xf8/0x160 [genwqe_card]
[] ddcb_cmd_cleanup+0x86/0xa8 [genwqe_card]
[] do_execute_ddcb+0x110/0x348 [genwqe_card]
[] genwqe_ioctl+0x51c/0xc20 [genwqe_card]
[] do_vfs_ioctl+0x3b2/0x518
[] SyS_ioctl+0xa4/0xb8
[] system_call+0xd6/0x264
[] 0x3ff9e8e520a
Last Breaking-Event-Address:
[] dma_update_cpu_trans+0x9a/0xa8
---[ end trace 35996336235145c8 ]---
BUG: Bad page state in process jbd2/dasdb1-8 pfn:3215b
page:000003d100c856c0 count:-1 mapcount:0 mapping: (null) index:0x0
flags: 0x3fffc0000000000()
page dumped because: nonzero _countSigned-off-by: Gerald Schaefer
Signed-off-by: Frank Haverkamp
Cc: stable
Signed-off-by: Greg Kroah-Hartman
27 Sep, 2016
1 commit
-
Genwqe uses dma_alloc_coherent and depends on zero initialized memory. On
one occasion it ueses an explicit memset on others it uses un-initialized
memory.This bug was covered because some archs actually return zero initialized
memory when using dma_alloc_coherent but this is by no means guaranteed.
Simply switch to dma_zalloc_coherent.Signed-off-by: Sebastian Ott
Signed-off-by: Frank Haverkamp
Signed-off-by: Greg Kroah-Hartman
31 Aug, 2016
1 commit
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Since it should always be ok for normal users to operate the accelerator,
it makes sense to change it in our driver, rather than adding udev rules
for all Linux distributions.Signed-off-by: Frank Haverkamp
Reviewed-by: Gabriel Krisman Bertazi
Signed-off-by: Greg Kroah-Hartman
22 Jun, 2016
1 commit
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Now that we do have pci_request_mem_regions() and pci_release_mem_regions()
at hand, use it in the genwqe driver.[bhelgaas: fix build issues]
Suggested-by: Christoph Hellwig
Signed-off-by: Johannes Thumshirn
Signed-off-by: Bjorn Helgaas
Reviewed-by: Christoph Hellwig
CC: Frank Haverkamp
CC: Greg Kroah-Hartman
09 Feb, 2016
1 commit
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Use kobj_to_dev() instead of open-coding it.
Signed-off-by: Geliang Tang
Signed-off-by: Greg Kroah-Hartman
04 Oct, 2015
2 commits
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Just fix a typo in the code comment.
Signed-off-by: Geliang Tang
Signed-off-by: Greg Kroah-Hartman -
we received reports of failed allocations in genwqe code:
[ 733.550955] genwqe_gzip: page allocation failure: order:1, mode:0x20
[ 733.550964] CPU: 2 PID: 1846 Comm: genwqe_gzip Not tainted 4.3.0-rc3-00042-g3225031 #78
[ 733.550968] 000000002782b830 000000002782b8c0 0000000000000002 0000000000000000
000000002782b960 000000002782b8d8 000000002782b8d8 00000000001134a0
0000000000000000 0000000000892b2a 0000000000871d0a 000000000000000b
000000002782b920 000000002782b8c0 0000000000000000 0000000000000000
0000000000000000 00000000001134a0 000000002782b8c0 000000002782b920
[ 733.551003] Call Trace:
[ 733.551013] ([] show_trace+0xf8/0x158)
[ 733.551018] [] show_stack+0x6a/0xe8
[ 733.551024] [] dump_stack+0x7c/0xd8
[ 733.551031] [] warn_alloc_failed+0xda/0x150
[ 733.551036] [] __alloc_pages_nodemask+0x94e/0xbc0
[ 733.551041] [] s390_dma_alloc+0x70/0x1a0
[ 733.551054] [] __genwqe_alloc_consistent+0x84/0xd0 [genwqe_card]
[ 733.551063] [] genwqe_alloc_sync_sgl+0x13a/0x328 [genwqe_card]
[ 733.551066] [] do_execute_ddcb+0x1f8/0x388 [genwqe_card]
[ 733.551069] [] genwqe_ioctl+0x598/0xd50 [genwqe_card]
[ 733.551072] [] do_vfs_ioctl+0x3f4/0x590
[ 733.551074] [] SyS_ioctl+0x9e/0xb0
[ 733.551078] [] system_call+0xd6/0x258
[ 733.551080] [] 0x3fffd25819a
[ 733.551082] no locks held by genwqe_gzip/1846.This specific allocation and some others in genwqe are unnecessary flagged
as atomic.All of genwqe's atomic allocations happen in a context where it's allowed
to sleep. Change these to use GFP_KERNEL.Signed-off-by: Sebastian Ott
Acked-by: Frank Haverkamp
Signed-off-by: Greg Kroah-Hartman
11 Sep, 2015
1 commit
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With two exceptions (drm/qxl and drm/radeon) all vm_operations_struct
structs should be constant.Signed-off-by: Kirill A. Shutemov
Reviewed-by: Oleg Nesterov
Cc: "H. Peter Anvin"
Cc: Andy Lutomirski
Cc: Dave Hansen
Cc: Ingo Molnar
Cc: Minchan Kim
Cc: Thomas Gleixner
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
12 Jan, 2015
1 commit
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Based on versioncheck.
Signed-off-by: Fabian Frederick
Signed-off-by: Greg Kroah-Hartman
15 Dec, 2014
1 commit
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Pull char/misc driver updates from Greg KH:
"Here's the big char/misc driver update for 3.19-rc1Lots of little things all over the place in different drivers, and a
new subsystem, "coresight" has been added. Full details are in the
shortlog"* tag 'char-misc-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (73 commits)
parport: parport_pc, do not remove parent devices early
spmi: Remove shutdown/suspend/resume kernel-doc
carma-fpga-program: drop videobuf dependency
carma-fpga: drop videobuf dependency
carma-fpga-program.c: fix compile errors
i8k: Fix temperature bug handling in i8k_get_temp()
cxl: Name interrupts in /proc/interrupt
CXL: Return error to PSL if IRQ demultiplexing fails & print clearer warning
coresight-replicator: remove .owner field for driver
coresight: fixed comments in coresight.h
coresight: fix typo in comment in coresight-priv.h
coresight: bindings for coresight drivers
coresight: Adding ABI documentation
w1: support auto-load of w1_bq27000 module.
w1: avoid potential u16 overflow
cn: verify msg->len before making callback
mei: export fw status registers through sysfs
mei: read and print all six FW status registers
mei: txe: add cherrytrail device id
mei: kill cached host and me csr values
...
20 Nov, 2014
1 commit
-
Signed-off-by: Al Viro
08 Nov, 2014
1 commit
-
`genwqe_user_vmap()` calls `get_user_pages_fast()` and if the return
value is less than the number of pages requested, it frees the pages and
returns an error (`-EFAULT`). However, it fails to consider a negative
error return value from `get_user_pages_fast()`. In that case, the test
`if (rc < m->nr_pages)` will be false (due to promotion of `rc` to a
large `unsigned int`) and the code will continue on to call
`genwqe_map_pages()` with an invalid list of page pointers. Fix it by
bailing out if `get_user_pages_fast()` returns a negative error value.Signed-off-by: Ian Abbott
Cc: # 3.14.x # 3.15.x # 3.16.x # 3.17.x
Signed-off-by: Greg Kroah-Hartman
24 Sep, 2014
8 commits
-
When the GenWQE hardware queue was busy, the driver returned simply
-EBUSY. This caused polling by applications which increased the load
on the already busy system. This change implements the possiblity to
sleep on a waitqueue instead when the DDCB queue is busy. The
requestor is woken up when there is free space on the queue again.
The old way to get -EBUSY is still available if the device is openend
with O_NONBLOCKING. The default is now blocking behavior.Signed-off-by: Frank Haverkamp
Signed-off-by: Greg Kroah-Hartman -
This patch fixes a problem we found during debug on PPC64 when
reading HSI status and Retc.Signed-off-by: Eberhard S. Amann
Signed-off-by: Frank Haverkamp
Signed-off-by: Greg Kroah-Hartman -
The checkpatch.pl script got improved. I ran it on the latest GenWQE
sources and fixed what it complained about.Signed-off-by: Frank Haverkamp
Signed-off-by: Greg Kroah-Hartman -
Forgetting to check this, can lead to problems on systems which
do not support SRIOV.Signed-off-by: Frank Haverkamp
Signed-off-by: Greg Kroah-Hartman -
Follow up patch to the one from Sebastian Ott. There is no need to
change the return code once it fails. And Sebastians version is tested
now and works nicely on our test-system.Signed-off-by: Frank Haverkamp
Signed-off-by: Greg Kroah-Hartman -
Updated email address of co-author.
Signed-off-by: Frank Haverkamp
Signed-off-by: Michael Jung
Signed-off-by: Greg Kroah-Hartman -
A special sysfs entry to display the driver version is not
needed. We left the driver version and adjusted it to the
naming a lot of other drivers use. The information can be
retrieved by using modinfo genwqe_card.modinfo genwqe_card will provide the same information.
Signed-off-by: Frank Haverkamp
Signed-off-by: Greg Kroah-Hartman -
Currently the driver is using the pci_get_totalvfs() return code
directly in a loop. To avoid problems with potentially negative
returns in case of errors, we are adding some more sanity checking
code.Signed-off-by: Frank Haverkamp
Signed-off-by: Greg Kroah-Hartman
19 Jul, 2014
1 commit
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Removes DEFINE_PCI_DEVICE_TABLE from drivers/misc/genwqe/card_base.c,
drivers/misc/genwqe/card_base.c, and drivers/misc/vmw_vmci/vmci_guest.c
in preferance of a "real" structure definition.Signed-off-by: Greg Kroah-Hartman
11 Jul, 2014
1 commit
-
The include for the UAPI header file from card_base.c can be removed
since it's already included on card_base.h.Signed-off-by: Kleber Sacilotto de Souza
Signed-off-by: Greg Kroah-Hartman
10 Jul, 2014
5 commits
-
GenWQE used to call pci_enable_msi_block to allocate a desired number
of MSI's. If that was not possible pci_enable_msi_block returned with a
smaller number which might be possible to allocate. GenWQE then called
pci_enable_msi_block with that number.Since commit a30d0108b
"GenWQE: Use pci_enable_msi_exact() instead of pci_enable_msi_block()"
pci_enable_msi_exact is used which fails if the desired number of MSI's
was not possible to allocate. Change GenWQE to use pci_enable_msi_range
to restore the old behavior.Signed-off-by: Sebastian Ott
Reviewed-by: Alexander Gordeev
Signed-off-by: Greg Kroah-Hartman -
Increase genwqe driver version number.
Signed-off-by: Kleber Sacilotto de Souza
Acked-by: Frank Haverkamp
Signed-off-by: Greg Kroah-Hartman -
Currently, in the event of a fatal hardware error, the driver tries a
recovery procedure that calls pci_reset_function() to reset the card.
This is not sufficient in some cases, needing a fundamental reset to
bring the card back.This patch implements a call to the platform fundamental reset procedure
on the error recovery path if GENWQE_PLATFORM_ERROR_RECOVERY is enabled.
This is implemented by default only on PPC64, since this can cause
problems on other archs, e.g. zSeries, where the platform has its own
recovery procedures, leading to a potencial race conditition. For these
cases, the recovery is kept as it was before.Signed-off-by: Kleber Sacilotto de Souza
Acked-by: Frank Haverkamp
Signed-off-by: Greg Kroah-Hartman -
This patch implements the callbacks and functions necessary to have EEH
recovery support.It adds a config option to enable or disable explicit calls to trigger
platform specific mechanisms on error recovery paths. This option is
enabled by default only on PPC64 systems and can be overritten via
debugfs. If this option is enabled, on the error recovery path the
driver will call pci_channel_offline() to check for error condition and
issue non-raw MMIO reads to trigger early EEH detection in case of
hardware failures. This is necessary since the driver MMIO helper
funtions use raw accessors.Signed-off-by: Kleber Sacilotto de Souza
Acked-by: Frank Haverkamp
Signed-off-by: Greg Kroah-Hartman -
This patch adds an interface on sysfs for userspace to request a card
bitstream reload. It sets the appropriate register and try to perform a
fundamental reset on the PCIe slot for the card to reload the bitstream
from the chosen partition.Signed-off-by: Kleber Sacilotto de Souza
Acked-by: Frank Haverkamp
Signed-off-by: Greg Kroah-Hartman
03 Jun, 2014
2 commits
-
…gregkh/char-misc into next
Pull char/misc driver patches from Greg KH:
"Here is the big char / misc driver update for 3.16-rc1.Lots of different driver updates for a variety of different drivers
and minor driver subsystems.All have been in linux-next with no reported issues"
* tag 'char-misc-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (79 commits)
hv: use correct order when freeing monitor_pages
spmi: of: fixup generic SPMI devicetree binding example
applicom: dereferencing NULL on error path
misc: genwqe: fix uninitialized return value in genwqe_free_sync_sgl()
miscdevice.h: Simple syntax fix to make pointers consistent.
MAINTAINERS: Add miscdevice.h to file list for char/misc drivers.
mcb: Add support for shared PCI IRQs
drivers: Remove duplicate conditionally included subdirs
misc: atmel_pwm: only build for supported platforms
mei: me: move probe quirk to cfg structure
mei: add per device configuration
mei: me: read H_CSR after asserting reset
mei: me: drop harmful wait optimization
mei: me: fix hw ready reset flow
mei: fix memory leak of mei_clients array
uio: fix vma io range check in mmap
drivers: uio_dmem_genirq: Fix memory leak in uio_dmem_genirq_probe()
w1: do not unlock unheld list_mutex in __w1_remove_master_device()
w1: optional bundling of netlink kernel replies
connector: allow multiple messages to be sent in one packet
... -
Pull PCI changes from Bjorn Helgaas:
"Enumeration
- Notify driver before and after device reset (Keith Busch)
- Use reset notification in NVMe (Keith Busch)NUMA
- Warn if we have to guess host bridge node information (Myron Stowe)
- Work around AMD Fam15h BIOSes that fail to provide _PXM (Suravee
Suthikulpanit)
- Clean up and mark early_root_info_init() as deprecated (Suravee
Suthikulpanit)Driver binding
- Add "driver_override" for force specific binding (Alex Williamson)
- Fail "new_id" addition for devices we already know about (Bandan
Das)Resource management
- Support BAR sizes up to 8GB (Nikhil Rao, Alan Cox)
- Don't move IORESOURCE_PCI_FIXED resources (Bjorn Helgaas)
- Mark SBx00 HPET BAR as IORESOURCE_PCI_FIXED (Bjorn Helgaas)
- Fail safely if we can't handle BARs larger than 4GB (Bjorn Helgaas)
- Reject BAR above 4GB if dma_addr_t is too small (Bjorn Helgaas)
- Don't convert BAR address to resource if dma_addr_t is too small
(Bjorn Helgaas)
- Don't set BAR to zero if dma_addr_t is too small (Bjorn Helgaas)
- Don't print anything while decoding is disabled (Bjorn Helgaas)
- Don't add disabled subtractive decode bus resources (Bjorn Helgaas)
- Add resource allocation comments (Bjorn Helgaas)
- Restrict 64-bit prefetchable bridge windows to 64-bit resources
(Yinghai Lu)
- Assign i82875p_edac PCI resources before adding device (Yinghai Lu)PCI device hotplug
- Remove unnecessary "dev->bus" test (Bjorn Helgaas)
- Use PCI_EXP_SLTCAP_PSN define (Bjorn Helgaas)
- Fix rphahp endianess issues (Laurent Dufour)
- Acknowledge spurious "cmd completed" event (Rajat Jain)
- Allow hotplug service drivers to operate in polling mode (Rajat Jain)
- Fix cpqphp possible NULL dereference (Rickard Strandqvist)MSI
- Replace pci_enable_msi_block() by pci_enable_msi_exact()
(Alexander Gordeev)
- Replace pci_enable_msix() by pci_enable_msix_exact() (Alexander Gordeev)
- Simplify populate_msi_sysfs() (Jan Beulich)Virtualization
- Add Intel Patsburg (X79) root port ACS quirk (Alex Williamson)
- Mark RTL8110SC INTx masking as broken (Alex Williamson)Generic host bridge driver
- Add generic PCI host controller driver (Will Deacon)Freescale i.MX6
- Use new clock names (Lucas Stach)
- Drop old IRQ mapping (Lucas Stach)
- Remove optional (and unused) IRQs (Lucas Stach)
- Add support for MSI (Lucas Stach)
- Fix imx6_add_pcie_port() section mismatch warning (Sachin Kamat)Renesas R-Car
- Add gen2 device tree support (Ben Dooks)
- Use new OF interrupt mapping when possible (Lucas Stach)
- Add PCIe driver (Phil Edworthy)
- Add PCIe MSI support (Phil Edworthy)
- Add PCIe device tree bindings (Phil Edworthy)Samsung Exynos
- Remove unnecessary OOM messages (Jingoo Han)
- Fix add_pcie_port() section mismatch warning (Sachin Kamat)Synopsys DesignWare
- Make MSI ISR shared IRQ aware (Lucas Stach)Miscellaneous
- Check for broken config space aliasing (Alex Williamson)
- Update email address (Ben Hutchings)
- Fix Broadcom CNB20LE unintended sign extension (Bjorn Helgaas)
- Fix incorrect vgaarb conditional in WARN_ON() (Bjorn Helgaas)
- Remove unnecessary __ref annotations (Bjorn Helgaas)
- Add arch/x86/kernel/quirks.c to MAINTAINERS PCI file patterns
(Bjorn Helgaas)
- Fix use of uninitialized MPS value (Bjorn Helgaas)
- Tidy x86/gart messages (Bjorn Helgaas)
- Fix return value from pci_user_{read,write}_config_*() (Gavin Shan)
- Turn pcibios_penalize_isa_irq() into a weak function (Hanjun Guo)
- Remove unused serial device IDs (Jean Delvare)
- Use designated initialization in PCI_VDEVICE (Mark Rustad)
- Fix powerpc NULL dereference in pci_root_buses traversal (Mike Qiu)
- Configure MPS on ARM (Murali Karicheri)
- Remove unnecessary includes of (Paul Gortmaker)
- Move Open Firmware devspec attribute to PCI common code (Sebastian Ott)
- Use pdev->dev.groups for attribute creation on s390 (Sebastian Ott)
- Remove pcibios_add_platform_entries() (Sebastian Ott)
- Add new ID for Intel GPU "spurious interrupt" quirk (Thomas Jarosch)
- Rename pci_is_bridge() to pci_has_subordinate() (Yijing Wang)
- Add and use new pci_is_bridge() interface (Yijing Wang)
- Make pci_bus_add_device() void (Yijing Wang)DMA API
- Clarify physical/bus address distinction in docs (Bjorn Helgaas)
- Fix typos in docs (Emilio López)
- Update dma_pool_create ()and dma_pool_alloc() descriptions (Gioh Kim)
- Change dma_declare_coherent_memory() CPU address to phys_addr_t
(Bjorn Helgaas)
- Pass GAPSPCI_DMA_BASE CPU & bus address to dma_declare_coherent_memory()
(Bjorn Helgaas)"* tag 'pci-v3.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (92 commits)
MAINTAINERS: Add generic PCI host controller driver
PCI: generic: Add generic PCI host controller driver
PCI: imx6: Add support for MSI
PCI: designware: Make MSI ISR shared IRQ aware
PCI: imx6: Remove optional (and unused) IRQs
PCI: imx6: Drop old IRQ mapping
PCI: imx6: Use new clock names
i82875p_edac: Assign PCI resources before adding device
ARM/PCI: Call pcie_bus_configure_settings() to set MPS
PCI: imx6: Fix imx6_add_pcie_port() section mismatch warning
PCI: Make pci_bus_add_device() void
PCI: exynos: Fix add_pcie_port() section mismatch warning
PCI: Introduce new device binding path using pci_dev.driver_override
PCI: rcar: Add gen2 device tree support
PCI: cpqphp: Fix possible null pointer dereference
PCI: rcar: Add R-Car PCIe device tree bindings
PCI: rcar: Add MSI support for PCIe
PCI: rcar: Add Renesas R-Car PCIe driver
PCI: Fix return value from pci_user_{read,write}_config_*()
PCI: exynos: Remove unnecessary OOM messages
...
28 May, 2014
1 commit
-
Function genwqe_free_sync_sgl() returns the value of variable 'rc'. 'rc' is
only set in the error paths, thus initialize it by 0. Coverity CID 1204242.Signed-off-by: Christian Engelmayer
Signed-off-by: Greg Kroah-Hartman
04 May, 2014
1 commit
-
Fix two format string mismatch in genwqe_init_debugfs()
Signed-off-by: Masanari Iida
Signed-off-by: Greg Kroah-Hartman
26 Apr, 2014
1 commit
-
As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers using these two
interfaces need to be updated to use the new pci_enable_msi_range() or
pci_enable_msi_exact() and pci_enable_msix_range() or
pci_enable_msix_exact() interfaces.Signed-off-by: Alexander Gordeev
Signed-off-by: Bjorn Helgaas
Acked-by: Frank Haverkamp
Acked-by: Greg Kroah-Hartman
17 Apr, 2014
1 commit
-
Increase genwqe driver version number.
Signed-off-by: Frank Haverkamp
Signed-off-by: Greg Kroah-Hartman