Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu

Pull RCU updates from Paul McKenney:

1. Miscellaneous fixes.
2. kfree_rcu() updates.

Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu

Pull RCU updates from Paul McKenney:

1. Miscellaneous fixes.
2. kfree_rcu() updates.
3. Remove scheduler locking restriction
4. RCU-tasks update, including addition of RCU Tasks Trace for
BPF use and RCU Tasks Rude. (This branch is on top of #3 due
to overlap of changed code.)
5. RCU CPU stall warning updates.
6. Torture-test updates.

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mtd: rawnand: Add a NAND_NO_BBM_QUIRK flag

Some controllers with embedded ECC engines override the BBM marker with
data or ECC bytes, thus making bad block detection through bad block
marker impossi

mtd: rawnand: Add a NAND_NO_BBM_QUIRK flag

Some controllers with embedded ECC engines override the BBM marker with
data or ECC bytes, thus making bad block detection through bad block
marker impossible. Let's flag those chips so the core knows it shouldn't
check the BBM and consider all blocks good.

This should allow us to get rid of two implementers of the
legacy.block_bad() hook.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200511064917.6255-1-boris.brezillon@collabora.com

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mtd: rawnand: Allow controllers to overload soft ECC hooks

Some controller drivers do not support executing regular
nand_read/write_page_raw() helpers. For that, we created
nand_monolithic_read/writ

mtd: rawnand: Allow controllers to overload soft ECC hooks

Some controller drivers do not support executing regular
nand_read/write_page_raw() helpers. For that, we created
nand_monolithic_read/write_page_raw() alternatives. Let's now allow
the driver to overload the ECC ->read/write_page_raw() hooks.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200507105241.14299-13-miquel.raynal@bootlin.com

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mtd: rawnand: Expose monolithic read/write_page_raw() helpers

The current nand_read/write_page_raw() helpers are already widely used
but do not fit the purpose of "constrained" controllers which can

mtd: rawnand: Expose monolithic read/write_page_raw() helpers

The current nand_read/write_page_raw() helpers are already widely used
but do not fit the purpose of "constrained" controllers which cannot,
for instance, separate command/address cycles with data cycles.

Workaround this issue by proposing alternative helpers that can be
used by these controller drivers instead.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200507105241.14299-12-miquel.raynal@bootlin.com

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mtd: rawnand: Give the possibility to verify a read operation is supported

This can be used to discriminate between two path in the parameter
page detection: use data_in cycles (like before) if supp

mtd: rawnand: Give the possibility to verify a read operation is supported

This can be used to discriminate between two path in the parameter
page detection: use data_in cycles (like before) if supported, use the
CHANGE READ COLUMN command otherwise.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200507105241.14299-9-miquel.raynal@bootlin.com

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mtd: rawnand: Avoid indirect access to ->data_buf()

The logic in nand_do_read_ops() is to use a bufpoi variable, either
set to the original buffer, or set to a bounce buffer which in the end
happens

mtd: rawnand: Avoid indirect access to ->data_buf()

The logic in nand_do_read_ops() is to use a bufpoi variable, either
set to the original buffer, or set to a bounce buffer which in the end
happens to be chip->data_buf depending on the value of the
use_bounce_buf boolean. This is not a reason to call chip->data_buf
directly when we know that we are using the bounce buffer. Let's use
bufpoi instead to be consistent.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200507105241.14299-7-miquel.raynal@bootlin.com

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mtd: rawnand: Rename the use_bufpoi variables

Both in nand_do_read_ops() and nand_do_write_ops() there is a boolean
called use_bufpoi which is set to true in case of unaligned request or
when there

mtd: rawnand: Rename the use_bufpoi variables

Both in nand_do_read_ops() and nand_do_write_ops() there is a boolean
called use_bufpoi which is set to true in case of unaligned request or
when there is a need for a DMA-able buffer. It basically means "use a
bounce buffer".

Depending on the value of use_bufpoi, the bufpoi variable is always
used and will either point to the original buffer or to the nand_chip
structure "internal data buffer" (this buffer is allocated with
kmalloc() on purpose so that it will be DMA-compliant).

In all cases bufpoi is used so the boolean name is misleading. Rename
use_bufpoi to be use_bouce_buf to be more accurate.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200507105241.14299-6-miquel.raynal@bootlin.com

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mtd: rawnand: Fix comments about the use of bufpoi

Clarify these comments which are not very accurate (even wrong in the
read case).

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewe

mtd: rawnand: Fix comments about the use of bufpoi

Clarify these comments which are not very accurate (even wrong in the
read case).

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200507105241.14299-5-miquel.raynal@bootlin.com

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mtd: rawnand: Rename a NAND chip option

NAND controller drivers can set the NAND_USE_BOUNCE_BUFFER flag to a
chip 'option' field. With this flag, the core is responsible of
providing DMA-able buffer

mtd: rawnand: Rename a NAND chip option

NAND controller drivers can set the NAND_USE_BOUNCE_BUFFER flag to a
chip 'option' field. With this flag, the core is responsible of
providing DMA-able buffers.

The current behavior is to not force the use of a bounce buffer when
the core thinks this is not needed. So in the end the name is a bit
misleading, because in theory we will always have a DMA buffer but in
practice it will not always be a bounce buffer.

Rename this flag NAND_USES_DMA to be more accurate.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200507105241.14299-4-miquel.raynal@bootlin.com

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mtd: rawnand: Define the "distance 3" MLC pairing scheme

Define a new page pairing scheme for MLC NANDs with a distance of 3
pages between the lower and upper page.

Signed-off-by: Boris Brezillon <

mtd: rawnand: Define the "distance 3" MLC pairing scheme

Define a new page pairing scheme for MLC NANDs with a distance of 3
pages between the lower and upper page.

Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200503155341.16712-3-miquel.raynal@bootlin.com

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mtd: rawnand: Give more information about the ECC weakness

When the ECC strength is too weak compared to the NAND chip
requirements, display the values so that it is clear for people how
much they a

mtd: rawnand: Give more information about the ECC weakness

When the ECC strength is too weak compared to the NAND chip
requirements, display the values so that it is clear for people how
much they are far from the requirements (and might get in troubles in
the future).

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200421163906.7515-1-miquel.raynal@bootlin.com

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Merge tag 'efi-next' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into efi/core

Pull EFI changes for v5.8 from Ard Biesheuvel:

"- preliminary changes for RISC-V
- add support for setti

Merge tag 'efi-next' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into efi/core

Pull EFI changes for v5.8 from Ard Biesheuvel:

"- preliminary changes for RISC-V
- add support for setting the resolution on the EFI framebuffer
- simplify kernel image loading for arm64
- Move .bss into .data via the linker script instead of relying on symbol
annotations.
- Get rid of __pure getters to access global variables
- Clean up the config table matching arrays"

Signed-off-by: Ingo Molnar <mingo@kernel.org>

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Merge branch 'topic/nhlt' into for-next

Merge NHLT init cleanup.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

Merge tag 'tegra-for-5.7-asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into asoc-5.7

ASoC: tegra: Fixes for v5.7-rc3

This contains a couple of fixes that are needed to properly

Merge tag 'tegra-for-5.7-asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into asoc-5.7

ASoC: tegra: Fixes for v5.7-rc3

This contains a couple of fixes that are needed to properly reconfigure
the audio clocks on older Tegra devices.

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Merge branch 'fixes-v5.7' into fixes

Merge tag 'kvm-s390-master-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into kvm-master

KVM: s390: Fix for 5.7 and maintainer update

- Silence false positive lockdep warnin

Merge tag 'kvm-s390-master-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into kvm-master

KVM: s390: Fix for 5.7 and maintainer update

- Silence false positive lockdep warning
- add Claudio as reviewer

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Merge drm/drm-next into drm-misc-next

Backmerging required to pull topic/phy-compliance.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-next into drm-intel-next-queued

Backmerging in order to pull "topic/phy-compliance".

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Merge v5.7-rc1 into drm-misc-fixes

Start the new drm-misc-fixes cycle.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Merge tag 'v5.7-rc1' into locking/kcsan, to resolve conflicts and refresh

Resolve these conflicts:

arch/x86/Kconfig
arch/x86/kernel/Makefile

Do a minor "evil merge" to move the KCSAN entry up a

Merge tag 'v5.7-rc1' into locking/kcsan, to resolve conflicts and refresh

Resolve these conflicts:

arch/x86/Kconfig
arch/x86/kernel/Makefile

Do a minor "evil merge" to move the KCSAN entry up a bit by a few lines
in the Kconfig to reduce the probability of future conflicts.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

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Merge tag 'mtd/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD updates from Miquel Raynal:
"MTD core changes:
- Fix issue where write_cached_data() fails but write()

Merge tag 'mtd/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD updates from Miquel Raynal:
"MTD core changes:
- Fix issue where write_cached_data() fails but write() still returns
success

- maps: sa1100-flash: Replace zero-length array with flexible-array
member

- phram: Fix a double free issue in error path

- Convert fallthrough comments into statements

- MAINTAINERS: Add the IRC channel to the MTD related subsystems

Raw NAND core changes:
- Add support for manufacturer specific suspend/resume operation

- Add support for manufacturer specific lock/unlock operation

- Replace zero-length array with flexible-array member

- Fix a typo ("manufecturer")

- Ensure nand_soft_waitrdy wait period is enough

Raw NAND controller driver changes:
- Brcmnand:
* Add support for flash-edu for dma transfers (+ bindings)

- Cadence:
* Reinit completion before executing a new command
* Change bad block marker size
* Fix the calculation of the avaialble OOB size
* Get meta data size from registers

- Qualcom:
* Use dma_request_chan() instead dma_request_slave_channel()
* Release resources on failure within qcom_nandc_alloc()

- Allwinner:
* Use dma_request_chan() instead dma_request_slave_channel()

- Marvell:
* Use dma_request_chan() instead dma_request_slave_channel()
* Release DMA channel on error

- Freescale:
* Use dma_request_chan() instead dma_request_slave_channel()

- Macronix:
* Add support for Macronix NAND randomizer (+ bindings)

- Ams-delta:
* Rename structures and functions to gpio_nand*
* Make the driver custom I/O ready
* Drop useless local variable
* Support custom driver initialisation
* Add module device tables
* Handle more GPIO pins as optional
* Make read pulses optional
* Don't hardcode read/write pulse widths
* Push inversion handling to gpiolib
* Enable OF partition info support
* Drop board specific partition info
* Use struct gpio_nand_platdata
* Write protect device during probe

- Ingenic:
* Use devm_platform_ioremap_resource()
* Add dependency on MIPS || COMPILE_TEST

- Denali:
* Deassert write protect pin

- ST:
* Use dma_request_chan() instead dma_request_slave_channel()

Raw NAND chip driver changes:
- Toshiba:
* Support reading the number of bitflips for BENAND (Built-in ECC NAND)

- Macronix:
* Add support for deep power down mode
* Add support for block protection

SPI-NAND core changes:
- Do not erase the block before writing a bad block marker

- Explicitly use MTD_OPS_RAW to write the bad block marker to OOB

- Stop using spinand->oobbuf for buffering bad block markers

- Rework detect procedure for different READ_ID operation

SPI-NAND driver changes:
- Toshiba:
* Support for new Kioxia Serial NAND
* Rename function name to change suffix and prefix (8Gbit)
* Add comment about Kioxia ID

- Micron:
* Add new Micron SPI NAND devices with multiple dies
* Add M70A series Micron SPI NAND devices
* identify SPI NAND device with Continuous Read mode
* Add new Micron SPI NAND devices
* Describe the SPI NAND device MT29F2G01ABAGD
* Generalize the OOB layout structure and function names

SPI NOR core changes:
- Move all the manufacturer specific quirks/code out of the core, to
make the core logic more readable and thus ease maintenance.

- Move the SFDP logic out of the core, it provides a better
separation between the SFDP parsing and core logic.

- Trim what is exposed in spi-nor.h. The SPI NOR controllers drivers
must not be able to use structures that are meant just for the SPI
NOR core.

- Use the spi-mem direct mapping API to let advanced controllers
optimize the read/write operations when they support direct
mapping.

- Add generic formula for the Status Register block protection
handling. It fixes some long standing locking limitations and eases
the addition of the 4bit block protection support.

- Add block protection support for flashes with 4 block protection
bits in the Status Register.

SPI NOR controller drivers changes:
- The mtk-quadspi driver is replaced by the new spi-mem spi-mtk-nor
driver.

- Merge tag 'mtk-mtd-spi-move' into spi-nor/next to avoid conflicts.

HyperBus changes:
- Print error msg when compatible is wrong or missing

- Move mapping of direct access window from core to individual
drivers"

* tag 'mtd/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (103 commits)
mtd: Convert fallthrough comments into statements
mtd: rawnand: toshiba: Support reading the number of bitflips for BENAND (Built-in ECC NAND)
MAINTAINERS: Add the IRC channel to the MTD related subsystems
mtd: Fix issue where write_cached_data() fails but write() still returns success
mtd: maps: sa1100-flash: Replace zero-length array with flexible-array member
mtd: phram: fix a double free issue in error path
mtd: spinand: toshiba: Support for new Kioxia Serial NAND
mtd: spinand: toshiba: Rename function name to change suffix and prefix (8Gbit)
mtd: rawnand: macronix: Add support for deep power down mode
mtd: rawnand: Add support for manufacturer specific suspend/resume operation
mtd: spi-nor: Enable locking for n25q512ax3/n25q512a
mtd: spi-nor: Add SR 4bit block protection support
mtd: spi-nor: Add generic formula for SR block protection handling
mtd: spi-nor: Set all BP bits to one when lock_len == mtd->size
mtd: spi-nor: controllers: aspeed-smc: Replace zero-length array with flexible-array member
mtd: spi-nor: Clear WEL bit when erase or program errors occur
MAINTAINERS: update entry after SPI NOR controller move
mtd: spi-nor: Trim what is exposed in spi-nor.h
mtd: spi-nor: Drop the MFR definitions
mtd: spi-nor: Get rid of the now empty spi_nor_ids[] table
...

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mtd: Convert fallthrough comments into statements

Use Joe Perches cvt_fallthrough.pl script to convert

/* fallthrough */

comments (and its derivatives) into a

fallthrough;

statement. This auto

mtd: Convert fallthrough comments into statements

Use Joe Perches cvt_fallthrough.pl script to convert

/* fallthrough */

comments (and its derivatives) into a

fallthrough;

statement. This automatically drops useless ones.

Do it MTD-wide.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Vignesh Raghavendra <vigneshr@ti.com>
Acked-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Acked-by: Richard Weinberger <richard@nod.at>
Link: https://lore.kernel.org/linux-mtd/20200325212115.14170-1-miquel.raynal@bootlin.com

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Merge tag 'nand/for-5.7' into mtd/next

Raw NAND core changes:
* Add support for manufacturer specific suspend/resume operation
* Add support for manufacturer specific lock/unlock operation
* Replace

Merge tag 'nand/for-5.7' into mtd/next

Raw NAND core changes:
* Add support for manufacturer specific suspend/resume operation
* Add support for manufacturer specific lock/unlock operation
* Replace zero-length array with flexible-array member
* Fix a typo ("manufecturer")
* Ensure nand_soft_waitrdy wait period is enough

Raw NAND controller driver changes:
* Brcmnand:
Add support for flash-edu for dma transfers (+ bindings)
* Cadence:
Reinit completion before executing a new command
Change bad block marker size
Fix the calculation of the avaialble OOB size
Get meta data size from registers
* Qualcom:
Use dma_request_chan() instead dma_request_slave_channel()
Release resources on failure within qcom_nandc_alloc()
* Allwinner:
Use dma_request_chan() instead dma_request_slave_channel()
* Marvell:
Use dma_request_chan() instead dma_request_slave_channel()
Release DMA channel on error
* Freescale:
Use dma_request_chan() instead dma_request_slave_channel()
* Macronix:
Add support for Macronix NAND randomizer (+ bindings)
* Ams-delta:
Rename structures and functions to gpio_nand*
Make the driver custom I/O ready
Drop useless local variable
Support custom driver initialisation
Add module device tables
Handle more GPIO pins as optional
Make read pulses optional
Don't hardcode read/write pulse widths
Push inversion handling to gpiolib
Enable OF partition info support
Drop board specific partition info
Use struct gpio_nand_platdata
Write protect device during probe
* Ingenic:
Use devm_platform_ioremap_resource()
Add dependency on MIPS || COMPILE_TEST
* Denali:
Deassert write protect pin
* ST:
Use dma_request_chan() instead dma_request_slave_channel()

Raw NAND chip driver changes:
* Toshiba:
Support reading the number of bitflips for BENAND (Built-in ECC NAND)
* Macronix:
Add support for deep power down mode
Add support for block protection

SPI-NAND core changes:
* Do not erase the block before writing a bad block marker
* Explicitly use MTD_OPS_RAW to write the bad block marker to OOB
* Stop using spinand->oobbuf for buffering bad block markers
* Rework detect procedure for different READ_ID operation

SPI-NAND driver changes:
* Toshiba:
Support for new Kioxia Serial NAND
Rename function name to change suffix and prefix (8Gbit)
Add comment about Kioxia ID
* Micron:
Add new Micron SPI NAND devices with multiple dies
Add M70A series Micron SPI NAND devices
identify SPI NAND device with Continuous Read mode
Add new Micron SPI NAND devices
Describe the SPI NAND device MT29F2G01ABAGD
Generalize the OOB layout structure and function names

show more ...

mtd: rawnand: Add support for manufacturer specific suspend/resume operation

Patch nand_suspend() & nand_resume() to let manufacturers overwrite
suspend/resume operations.

Signed-off-by: Mason Yang

mtd: rawnand: Add support for manufacturer specific suspend/resume operation

Patch nand_suspend() & nand_resume() to let manufacturers overwrite
suspend/resume operations.

Signed-off-by: Mason Yang <masonccyang@mxic.com.tw>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/1584517348-14486-2-git-send-email-masonccyang@mxic.com.tw

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mtd: rawnand: Add support for manufacturer specific lock/unlock operation

Add nand_lock() & nand_unlock() for manufacturer specific lock & unlock
operation while the device supports Block Portection

mtd: rawnand: Add support for manufacturer specific lock/unlock operation

Add nand_lock() & nand_unlock() for manufacturer specific lock & unlock
operation while the device supports Block Portection function.

Signed-off-by: Mason Yang <masonccyang@mxic.com.tw>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/1583220084-10890-2-git-send-email-masonccyang@mxic.com.tw

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