721754 Commits

Author SHA1 Message Date
Miquel Raynal
12663b442e mtd: mtd_oobtest: Handle bitflips during reads
Reads from NAND devices usually trigger bitflips, this is an expected
behavior. While bitflips are under a given threshold, the MTD core
returns 0. However, when the number of corrected bitflips is above this
same threshold, -EUCLEAN is returned to inform the upper layer that this
block is slightly dying and soon the ECC engine will be overtaken so
actions should be taken to move the data out of it.

This particular condition should not be treated like an error and the
test should continue.

Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-12 10:24:08 +01:00
Nicolas Ferre
7cce5d8354 MAINTAINERS: mtd/nand: update Microchip nand entry
Update Wenyou Yang email address.
Take advantage of this update to move this entry to the MICROCHIP / ATMEL
location and add the DT binding documentation link.

Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Wenyou Yang <wenyou.yang@microchip.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-12 10:20:03 +01:00
Ladislav Michl
09ec417b0e mtd: nand: samsung: Disable subpage writes on E-die NAND
Samsung E-die SLC NAND manufactured using 21nm process (K9F1G08U0E)
does not support partial page programming, so disable subpage writes
for it. Manufacturing process is stored in lowest two bits of 5th ID
byte.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-10 09:45:04 +01:00
Sascha Hauer
6cbefbdcec mtd: tests: nandbiterrs: Fix read_page return value
The number of corrected bitflips is not correctly reported by
the test until the bitflip threshold is reached.

read_page() shall return the number of corrected bitflips, but
mtd_read() returns 0 or a negative error, so we can't forward
its return value. In the absence of an error we always have
calculate the number of bitflips ourselves.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-09 10:56:29 +01:00
Kamal Dasu
f953f0f896 mtd: nand: brcmnand: Disable prefetch by default
Brcm nand controller prefetch feature needs to be disabled
by default. Enabling affects performance on random reads as
well as dma reads.

Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Fixes: 27c5b17cd1b1 ("mtd: nand: add NAND driver "library" for Broadcom STB NAND controller")
Cc: <stable@vger.kernel.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-09 10:00:04 +01:00
Fabio Estevam
069f05346d mtd: nand: qcom: Add a NULL check for devm_kasprintf()
devm_kasprintf() may fail, so we should better add a NULL check
and propagate an error on failure.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-06 21:55:42 +01:00
Fabio Estevam
039b4377e5 mtd: nand: brcmnand: Add a NULL check for devm_kasprintf()
devm_kasprintf() may fail, so we should better add a NULL check
and propagate an error on failure.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-06 10:35:22 +01:00
Miquel Raynal
d787b8b350 mtd: nand: Fix unfinished comment in nand_init_data_interface()
Give an unfinished comment a meaning.

Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2018-01-06 10:09:48 +01:00
Christophe JAILLET
24f648c2ba mtd: onenand: samsung: Remove a useless include
This include is not needed, so remove it.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-18 17:37:52 +01:00
Christophe JAILLET
0598344df0 mtd: onenand: samsung: Propagate the error returned by 'onenand_scan()'
Propagate the error code returned by 'onenand_scan()' instead of a
hard-coded -EFAULT.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-18 17:37:51 +01:00
Christophe JAILLET
ad99be4772 mtd: onenand: samsung: return an error if 'mtd_device_parse_register()' fails
If 'mtd_device_parse_register()' fails, we still return 0 which mean
success.
Return the error code instead, as done in all the other error handling
paths.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-18 17:37:51 +01:00
Christophe JAILLET
8b5c51a45c mtd: onenand: samsung: use devm_ function to simplify code and fix some leaks
Convert all error handling code in 's3c_onenand_probe()' to
resource-managed alternatives in order to simplify code.

This fixes a resource leak if 'platform_get_resource()' fails at line 872.

The 'request_irq()' at line 971 was also un-balanced. It is now
resource-managed.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-18 17:37:39 +01:00
Miquel Raynal
8878b126df mtd: nand: add ->exec_op() implementation
Introduce a new interface to instruct NAND controllers to send specific
NAND operations. The new interface takes the form of a single method
called ->exec_op(). This method is designed to replace ->cmd_ctrl(),
->cmdfunc() and ->read/write_byte/word/buf() hooks.

->exec_op() is passed a set of instructions describing the operation
to execute. Each instruction has a type (ADDR, CMD, DATA, WAITRDY)
and delay. The delay is here to help simple controllers wait enough
time between each instruction, advanced controllers with integrated
timings control can ignore these delays.

Controllers that natively support complex operations (operations
formed of several instructions) can use the NAND op parser
infrastructure. This infrastructure allows controller drivers to
describe the sequence of instructions they support (called
nand_op_pattern) and a hook for each of these supported sequences. The
core then tries to find the best match for a given NAND operation, and
calls the associated hook.

Various other helpers are also added to ease NAND controller drivers
writing.

This new interface should ease support of vendor specific operations
in that NAND manufacturer drivers now have a way to check if the
controller they are connected to supports a specific operation, and
complain or refuse to probe the NAND chip when that's not the case.

Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-16 14:40:26 +01:00
Miquel Raynal
707d81545d mtd: nand: samsung: add ECC requirements for K9F4G08U0D
Samsung NAND chip K9F4G08U0D minimum ECC strength requirement is 1 bit
per 512 bytes. As the chip is not ONFI nor JEDEC and because of the lack
of these values, boards using it fail to probe the NAND controller
driver. Fix this by setting up the default values.

Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-14 13:34:23 +01:00
Boris Brezillon
aeb93af96d mtd: nand: Only allocate ecc->{calc, code}_buf when actually needed
The only users of the ecc->{calc,code}_buf buffers are NAND controller
drivers implementing ecc->calculate() and/or ecc->correct(). Since the
->oobsize can be non-negligle, especially on modern NAND devices, we'd
better allocate it only when it is actually required.

Make ecc->{calc,code}_buf allocation dependent on the presence of
ecc->calculate() or ecc->correct().

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-12-14 13:34:23 +01:00
Boris Brezillon
8c677541bb mtd: nand: denali: Avoid using ecc->code_buf as a temporary buffer
ECC bytes are contiguous in the ->oob_poi buffer, which means we don't
have to copy them into ->code_buf (here used as a temporary buffer)
before passing them to the nand_check_erased_ecc_chunk() function.

This change will allow us to allocate ecc->{code,calc}_buf only when
ecc->calculate() or ecc->correct() is specified.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-12-14 13:34:22 +01:00
RogerCC Lin
98dea8d719 mtd: nand: mtk: Support MT7622 NAND flash controller.
Add tables to support MT7622 NAND flash controller.

Signed-off-by: RogerCC Lin <rogercc.lin@mediatek.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-14 13:34:22 +01:00
RogerCC Lin
b45ee5501e mtd: nand: mtk: Support different MTK NAND flash controller IP
MT7622 uses an MTK's earlier NAND flash controller IP which support
different sector size, max spare size per sector and paraity bits...,
some register's offset and definition also been changed in the NAND
flash controller, this patch is the preparation to support MT7622
NAND flash controller.

MT7622 NFC and ECC engine are similar to MT2701's, except below
differences:
(1)MT7622 NFC's max sector size(ECC data size) is 512 bytes, and
   MT2701's is 1024, and MT7622's max sector number is 8.
(2)The parity bit of MT7622 is 13, MT2701 is 14.
(3)MT7622 ECC supports less ECC strength, max to 16 bit ecc strength.
(4)MT7622 supports less spare size per sector, max spare size per
   sector is 28 bytes.
(5)Some register's offset are different, include ECC_ENCIRQ_EN,
   ECC_ENCIRQ_STA, ECC_DECDONE, ECC_DECIRQ_EN and ECC_DECIRQ_STA.
(6)ENC_MODE of ECC_ENCCNFG register is moved from bit 5-6 to bit 4-5.

Signed-off-by: RogerCC Lin <rogercc.lin@mediatek.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-14 13:34:21 +01:00
RogerCC Lin
624d5abf6c mtd: nand: mtk: update DT bindings
Add MT7622 NAND Flash Controller dt bindings documentation.

Signed-off-by: RogerCC Lin <rogercc.lin@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-14 13:34:21 +01:00
Ladislav Michl
f170c6fb70 mtd: onenand: Remove obsolete url from Kconfig help
Samsung website no longer host information about OneNAND,
delete it.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-14 13:34:20 +01:00
Masahiro Yamada
958ef111cc mtd: nand: cafe: clean up DMA address setup
Use macros from <linux/kernel.h> to make the code readable.
The compiler warning will be kept suppressed.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-14 13:34:20 +01:00
Masahiro Yamada
c0313b966a mtd: nand: squash struct nand_buffers into struct nand_chip
struct nand_buffers is malloc'ed in nand_scan_tail() just for
containing three pointers.  Squash this struct into nand_chip.

Move and rename as follows:

  chip->buffers->ecccalc   ->  chip->ecc.calc_buf
  chip->buffers->ecccode   ->  chip->ecc.code_buf
  chip->buffers->databuf   ->  chip->data_buf

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-14 13:34:19 +01:00
Masahiro Yamada
8b311ead8b mtd: nand: remove unused NAND_OWN_BUFFERS flag
The last/only user of NAND_OWN_BUFFERS (cafe_nand.c) has been reworked.
This flag is no longer needed.

Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-14 13:34:19 +01:00
Masahiro Yamada
f880b07bf1 mtd: nand: cafe: remove use of NAND_OWN_BUFFERS
This driver is the last/only user of NAND_OWN_BUFFERS.  Boris suggested
to remove this flag.

Taking a closer look at this driver, it calls dma_alloc_coherent() for
the concatenated area for the DMA bounce buffer + struct nand_buffers,
but the latter does not need to be DMA-coherent; cafe_{write,read}_buf
simply do memcpy() between buffers when usedma==1.

Let's do dma_alloc_coherent() for the DMA bounce buffer in the front,
and leave the nand_buffers allocation to nand_scan_tail(), then rip off
NAND_OWN_BUFFERS.

The magic number, 2112, is still mysterious (hard-coded writesize +
oobsize ?), but this is not our main interest.  I am keeping it.

Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-14 13:34:18 +01:00
Miquel Raynal
17fa804418 mtd: nand: provide valid ->data_interface during NAND detection
Right now, the chip->data_interface field is populated in
nand_scan_tail(), so after the whole NAND detection has taken place.
This is fine because these timings are not yet used by the core so
early in the probe process, but the situation is about to change with
the introduction of ->exec_op().

Also, by convention, nand_scan_ident() is not supposed to allocate
resources, only nand_scan_tail() can, so this prevent us from
allocating and initializing the data_interface object in
nand_scan_ident().

In order to solve this problem, directly embed a data_interface object
in nand_chip so that we don't have to allocate it, and initialize it to
ONFI SDR mode 0 at the very beginning of nand_scan_ident().

Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-14 13:34:18 +01:00
Boris Brezillon
25f815f66a mtd: nand: force drivers to explicitly send READ/PROG commands
The core currently send the READ0 and SEQIN+PAGEPROG commands in
nand_do_read/write_ops(). This is inconsistent with
->read/write_oob[_raw]() hooks behavior which are expected to send
these commands.

There's already a flag (NAND_ECC_CUSTOM_PAGE_ACCESS) to inform the core
that a specific controller wants to send the READ/SEQIN+PAGEPROG
commands on its own, but it's an opt-in flag, and existing drivers are
unlikely to be updated to pass it.

Moreover, some controllers cannot dissociate the READ/PAGEPROG commands
from the associated data transfer and ECC engine activation, and
developers have to hack things in their ->cmdfunc() implementation to
handle such complex cases, or have to accept the perf penalty of sending
twice the same command.
To address this problem we are planning on adding a new interface which
is passed all information about a NAND operation (including the amount
of data to transfer) and replacing all calls to ->cmdfunc() to calls to
this new ->exec_op() hook. But, in order to do that, we need to have all
->cmdfunc() calls placed near their associated ->read/write_buf/byte()
calls.

Modify the core and relevant drivers to make NAND_ECC_CUSTOM_PAGE_ACCESS
the default case, and remove this flag.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[miquel.raynal@free-electrons.com: tested, fixed and rebased on nand/next]
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-12-14 13:34:17 +01:00
Boris Brezillon
97d90da8a8 mtd: nand: provide several helpers to do common NAND operations
This is part of the process of removing direct calls to ->cmdfunc()
outside of the core in order to introduce a better interface to execute
NAND operations.

Here we provide several helpers and make use of them to remove all
direct calls to ->cmdfunc(). This way, we can easily modify those
helpers to make use of the new ->exec_op() interface when available.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[miquel.raynal@free-electrons.com: rebased and fixed some conflicts]
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-12-14 13:34:12 +01:00
Miquel Raynal
eb94555e9e mtd: nand: use usual return values for the ->erase() hook
Avoid using specific defined values for checking returned status of the
->erase() hook. Instead, use usual negative error values on failure,
zero otherwise.

Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-12-01 09:45:30 +01:00
Masahiro Yamada
8a8c8ba1c8 mtd: nand: denali: rename misleading dma_buf to tmp_buf
The "dma_buf" is not used for a DMA bounce buffer, but for arranging
the transferred data for the syndrome page layout.  In fact, it is
used in the PIO mode as well, so "dma_buf" is a misleading name.
Rename it to "tmp_buf".

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-11-30 22:32:50 +01:00
Masahiro Yamada
c9e916a4b4 mtd: nand: remove unnecessary extern from driver headers
'extern' is not necessary for function declarations.

scripts/checkpatch.pl with --strict option reports the following:

  CHECK: extern prototypes should be avoided in .h files

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-11-30 22:32:49 +01:00
Jagdish Gediya
bccb06c353 mtd: nand: ifc: update bufnum mask for ver >= 2.0.0
Bufnum mask is used to calculate page position in the internal SRAM.

As IFC version 2.0.0 has 16KB of internal SRAM as compared to older
versions which had 8KB. Hence bufnum mask needs to be updated.

Signed-off-by: Jagdish Gediya <jagdish.gediya@nxp.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-11-30 22:32:49 +01:00
Jesse Chan
d822401d1c mtd: nand: denali_pci: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
This change resolves a new compile-time warning
when built as a loadable module:

WARNING: modpost: missing MODULE_LICENSE() in drivers/mtd/nand/denali_pci.o
see include/linux/module.h for more information

This adds the license as "GPL v2", which matches the header of the file.

MODULE_DESCRIPTION and MODULE_AUTHOR are also added.

Signed-off-by: Jesse Chan <jc@linux.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-11-30 22:32:48 +01:00
Sascha Hauer
34832dc44d mtd: nand: gpmi-nand: Remove wrong Kconfig help text
The GPMI nand Kconfig help texts mentions that the GPMI nand driver
might conflict with SD cards. The only conflict there might really
be is that both controllers use the same pins, but this is resolved
by the pincontroller setup in the device tree. In any way the GPMI
driver can safely be enabled, the text is just wrong. Remove it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-11-30 22:32:19 +01:00
Boris Brezillon
26f0740ed6 mtd: nand: hynix: Don't wait after applying new read-retry params
Setting read-retry parameters has no impact on the R/B pin, so waiting
for the chip to be ready is useless.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-11-30 11:02:52 +01:00
Miquel Raynal
df467899da mtd: nand: fix interpretation of NAND_CMD_NONE in nand_command[_lp]()
Some drivers (like nand_hynix.c) call ->cmdfunc() with NAND_CMD_NONE
and a column address and expect the controller to only send address
cycles. Right now, the default ->cmdfunc() implementations provided by
the core do not filter out the command cycle in this case and forwards
the request to the controller driver through the ->cmd_ctrl() method.
The thing is, NAND controller drivers can get this wrong and send a
command cycle with a NAND_CMD_NONE opcode and since NAND_CMD_NONE is
-1, and the command field is usually casted to an u8, we end up sending
the 0xFF command which is actually a RESET operation.

Add conditions in nand_command[_lp]() functions to sending the initial
command cycle when command == NAND_CMD_NONE.

Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-11-30 11:02:50 +01:00
Gustavo A. R. Silva
b13a9735ae mtd: nand: gpmi: replace _manual_ swap with swap macro
Make use of the swap macro and remove unnecessary variables swap.
This makes the code easier to read and maintain.

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Acked-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-11-30 10:57:33 +01:00
Xiaolei Li
f883199d17 mtd: nand: mtk: use nand_reset() to reset NAND devices in resume function
Previously, we only select chips and then send reset command to a NAND
device during resuming nand driver. There is a lack of deselecting chips.
It is advised to reset and initialize a NAND device using nand_reset().

Signed-off-by: Xiaolei Li <xiaolei.li@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2017-11-30 10:57:27 +01:00
Linus Torvalds
4fbd8d194f Linux 4.15-rc1 2017-11-26 16:01:47 -08:00
Linus Torvalds
bbecb1cfcc Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:

 - LPAE fixes for kernel-readonly regions

 - Fix for get_user_pages_fast on LPAE systems

 - avoid tying decompressor to a particular platform if DEBUG_LL is
   enabled

 - BUG if we attempt to return to userspace but the to-be-restored PSR
   value keeps us in privileged mode (defeating an issue that ftracetest
   found)

* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: BUG if jumping to usermode address in kernel mode
  ARM: 8722/1: mm: make STRICT_KERNEL_RWX effective for LPAE
  ARM: 8721/1: mm: dump: check hardware RO bit for LPAE
  ARM: make decompressor debug output user selectable
  ARM: fix get_user_pages_fast
2017-11-26 15:03:49 -08:00
Linus Torvalds
dec0029a59 Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Glexiner:

 - unbreak the irq trigger type check for legacy platforms

 - a handful fixes for ARM GIC v3/4 interrupt controllers

 - a few trivial fixes all over the place

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq/matrix: Make - vs ?: Precedence explicit
  irqchip/imgpdc: Use resource_size function on resource object
  irqchip/qcom: Fix u32 comparison with value less than zero
  irqchip/exiu: Fix return value check in exiu_init()
  irqchip/gic-v3-its: Remove artificial dependency on PCI
  irqchip/gic-v4: Add forward definition of struct irq_domain_ops
  irqchip/gic-v3: pr_err() strings should end with newlines
  irqchip/s3c24xx: pr_err() strings should end with newlines
  irqchip/gic-v3: Fix ppi-partitions lookup
  irqchip/gic-v4: Clear IRQ_DISABLE_UNLAZY again if mapping fails
  genirq: Track whether the trigger type has been set
2017-11-26 14:39:20 -08:00
Linus Torvalds
02fc87b117 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc x86 fixes from Ingo Molnar:
 - topology enumeration fixes
 - KASAN fix
 - two entry fixes (not yet the big series related to KASLR)
 - remove obsolete code
 - instruction decoder fix
 - better /dev/mem sanity checks, hopefully working better this time
 - pkeys fixes
 - two ACPI fixes
 - 5-level paging related fixes
 - UMIP fixes that should make application visible faults more debuggable
 - boot fix for weird virtualization environment

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
  x86/decoder: Add new TEST instruction pattern
  x86/PCI: Remove unused HyperTransport interrupt support
  x86/umip: Fix insn_get_code_seg_params()'s return value
  x86/boot/KASLR: Remove unused variable
  x86/entry/64: Add missing irqflags tracing to native_load_gs_index()
  x86/mm/kasan: Don't use vmemmap_populate() to initialize shadow
  x86/entry/64: Fix entry_SYSCALL_64_after_hwframe() IRQ tracing
  x86/pkeys/selftests: Fix protection keys write() warning
  x86/pkeys/selftests: Rename 'si_pkey' to 'siginfo_pkey'
  x86/mpx/selftests: Fix up weird arrays
  x86/pkeys: Update documentation about availability
  x86/umip: Print a warning into the syslog if UMIP-protected instructions are used
  x86/smpboot: Fix __max_logical_packages estimate
  x86/topology: Avoid wasting 128k for package id array
  perf/x86/intel/uncore: Cache logical pkg id in uncore driver
  x86/acpi: Reduce code duplication in mp_override_legacy_irq()
  x86/acpi: Handle SCI interrupts above legacy space gracefully
  x86/boot: Fix boot failure when SMP MP-table is based at 0
  x86/mm: Limit mmap() of /dev/mem to valid physical addresses
  x86/selftests: Add test for mapping placement for 5-level paging
  ...
2017-11-26 14:11:54 -08:00
Linus Torvalds
6830c8db58 Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
 "Misc fixes: a documentation fix, a Sparse warning fix and a debugging
  fix"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/debug: Fix task state recording/printout
  sched/deadline: Don't use dubious signed bitfields
  sched/deadline: Fix the description of runtime accounting in the documentation
2017-11-26 13:43:25 -08:00
Linus Torvalds
580e3d552d Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Misc fixes: two PMU driver fixes and a memory leak fix"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Fix memory leak triggered by perf --namespace
  perf/x86/intel/uncore: Add event constraint for BDX PCU
  perf/x86/intel: Hide TSX events when RTM is not supported
2017-11-26 13:41:48 -08:00
Linus Torvalds
cd4b5d5d27 Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull static key fix from Ingo Molnar:
 "Fix a boot warning related to bad init ordering of the static keys
  self-test"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  jump_label: Invoke jump_label_test() via early_initcall()
2017-11-26 13:36:54 -08:00
Linus Torvalds
fcbc38b1b2 Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fixes from Ingo Molnar:
 "A handful of objtool fixes, most of them related to making the UAPI
  header-syncing warnings easier to read and easier to act upon"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tools/headers: Sync objtool UAPI header
  objtool: Fix cross-build
  objtool: Move kernel headers/code sync check to a script
  objtool: Move synced files to their original relative locations
  objtool: Make unreachable annotation inline asms explicitly volatile
  objtool: Add a comment for the unreachable annotation macros
2017-11-26 13:11:18 -08:00
Russell King
8bafae202c ARM: BUG if jumping to usermode address in kernel mode
Detect if we are returning to usermode via the normal kernel exit paths
but the saved PSR value indicates that we are in kernel mode.  This
could occur due to corrupted stack state, which has been observed with
"ftracetest".

This ensures that we catch the problem case before we get to user code.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-11-26 15:41:39 +00:00
Linus Torvalds
844056fd74 Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:

 - The final conversion of timer wheel timers to timer_setup().

   A few manual conversions and a large coccinelle assisted sweep and
   the removal of the old initialization mechanisms and the related
   code.

 - Remove the now unused VSYSCALL update code

 - Fix permissions of /proc/timer_list. I still need to get rid of that
   file completely

 - Rename a misnomed clocksource function and remove a stale declaration

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
  m68k/macboing: Fix missed timer callback assignment
  treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
  timer: Remove redundant __setup_timer*() macros
  timer: Pass function down to initialization routines
  timer: Remove unused data arguments from macros
  timer: Switch callback prototype to take struct timer_list * argument
  timer: Pass timer_list pointer to callbacks unconditionally
  Coccinelle: Remove setup_timer.cocci
  timer: Remove setup_*timer() interface
  timer: Remove init_timer() interface
  treewide: setup_timer() -> timer_setup() (2 field)
  treewide: setup_timer() -> timer_setup()
  treewide: init_timer() -> setup_timer()
  treewide: Switch DEFINE_TIMER callbacks to struct timer_list *
  s390: cmm: Convert timers to use timer_setup()
  lightnvm: Convert timers to use timer_setup()
  drivers/net: cris: Convert timers to use timer_setup()
  drm/vc4: Convert timers to use timer_setup()
  block/laptop_mode: Convert timers to use timer_setup()
  net/atm/mpc: Avoid open-coded assignment of timer callback function
  ...
2017-11-25 08:37:16 -10:00
Linus Torvalds
ca122fe376 ARC updates for 4.15-rc1
- More changes for HS48 cores: supporting MMUv5, detecting new micro-arch gizmos
 
  - axs10x platform wiring up reset driver merged in this cycle
 
  - ARC perf driver optimizations
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Merge tag 'arc-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC updates from Vineet Gupta:

 - more changes for HS48 cores: supporting MMUv5, detecting new
   micro-arch gizmos

 - axs10x platform wiring up reset driver merged in this cycle

 - ARC perf driver optimizations

* tag 'arc-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: perf: avoid vmalloc backed mmap
  ARCv2: perf: optimize given that num counters <= 32
  ARCv2: perf: tweak overflow interrupt
  ARC: [plat-axs10x] DTS: Add reset controller node to manage ethernet reset
  ARCv2: boot log: updates for HS48: dual-issue, ECC, Loop Buffer
  ARCv2: Accomodate HS48 MMUv5 by relaxing MMU ver checking
  ARC: [plat-axs10x] auto-select AXS101 or AXS103 given the  ISA config
2017-11-25 08:21:54 -10:00
Linus Torvalds
5e2fda4776 Kbuild updates for v4.15 (2nd)
- Use pwd instead of /bin/pwd for portability
 
 - Clean up Makefiles
 
 - Fix ld-option for clang
 
 - Fix malloc'ed data size in Kconfig
 
 - Fix parallel building along with coccicheck
 
 - Fix a minor issue of package building
 
 - Prompt to use "rpm-pkg" instead of "rpm"
 
 - Clean up *.i and *.lst patterns by "make clean"
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Merge tag 'kbuild-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild updates from Masahiro Yamada:

 - use 'pwd' instead of '/bin/pwd' for portability

 - clean up Makefiles

 - fix ld-option for clang

 - fix malloc'ed data size in Kconfig

 - fix parallel building along with coccicheck

 - fix a minor issue of package building

 - prompt to use "rpm-pkg" instead of "rpm"

 - clean up *.i and *.lst patterns by "make clean"

* tag 'kbuild-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: drop $(extra-y) from real-objs-y
  kbuild: clean up *.i and *.lst patterns by make clean
  kbuild: rpm: prompt to use "rpm-pkg" if "rpm" target is used
  kbuild: pkg: use --transform option to prefix paths in tar
  coccinelle: fix parallel build with CHECK=scripts/coccicheck
  kconfig/symbol.c: use correct pointer type argument for sizeof
  kbuild: Set KBUILD_CFLAGS before incl. arch Makefile
  kbuild: remove all dummy assignments to obj-
  kbuild: create built-in.o automatically if parent directory wants it
  kbuild: /bin/pwd -> pwd
2017-11-25 08:06:30 -10:00
Linus Torvalds
f61ec2c97c AFS fixes
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Merge tag 'afs-fixes-20171124' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

Pull AFS fixes from David Howells:

 - Make AFS file locking work again.

 - Don't write to a page that's being written out, but wait for it to
   complete.

 - Do d_drop() and d_add() in the right places.

 - Put keys on error paths.

 - Remove some redundant code.

* tag 'afs-fixes-20171124' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  afs: remove redundant assignment of dvnode to itself
  afs: cell: Remove unnecessary code in afs_lookup_cell
  afs: Fix signal handling in some file ops
  afs: Fix some dentry handling in dir ops and missing key_puts
  afs: Make afs_write_begin() avoid writing to a page that's being stored
  afs: Fix file locking
2017-11-25 07:58:25 -10:00