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Fixes gcc '-Wunused-but-set-variable' warning:
drivers/mtd/nand/onenand/samsung_mtd.c: In function s3c_onenand_check_lock_status:
drivers/mtd/nand/onenand/samsung_mtd.c:731:6: warning: variable tmp set but not used [-Wunused-but-set-variable]
Signed-off-by: Chen Wandun <chenwandun@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
$ sed -e 's/^ /\t/' -i */Kconfig
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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There is a spelling mistake in a dev_err error message. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Bin Liu <b-liu@ti.com>
Link: https://lore.kernel.org/r/20200117093124.97965-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The MT6660 is a boosted BTL class-D amplifier with V/I sensing.
A built-in DC-DC step-up converter is used to provide efficient
power for class-D amplifier with multi-level class-G operation.
The digital audio interface supports I2S, left-justified,
right-justified, TDM and DSP A/B format for audio in with a data
out used for chip information like voltage sense and current
sense, which are able to be monitored via DATAO through proper
Signed-off-by: Jeff Chang <jeff_chang@richtek.com>
Link: https://lore.kernel.org/r/1579153597-23286-1-git-send-email-richtek.jeff.chang@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Currently, we just assume that it will stick around by virtue of the
submitter's reference, but later patches will allow the syscall to
return early and we can't rely on that reference at that point.
While I'm not aware of any reports of it, Xiubo pointed out that this
may fix a use-after-free. If the wait for a reply times out or is
canceled via signal, and then the reply comes in after the syscall
returns, the client can end up trying to access r_parent without a
reference.
Take an extra reference to the inode when setting r_parent and release
it when releasing the request.
Cc: stable@vger.kernel.org
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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A read from a Winbond W25Q32FV SPI NOR memory chip on my MMP2 returns
wrong data.
It seems like SSE doesn't do the right thing on MMP2 at all. After
enabling the SPI port back again, the FIFO reads return garbage. Things
can be brought back to order by telling the PMU to reset the block.
Here's a good transaction with said chip:
# busybox devmem 0xd4035000 32 0x00001987 # SSCR0
# echo 0 >/sys/class/gpio/gpio46/value # (assert CS)
# busybox devmem 0xd4035010 32 0x0000009f # SSDR (read ID command)
# busybox devmem 0xd4035010 32 0x00000000 # SSDR
# busybox devmem 0xd4035010 32 0x00000000 # SSDR
# busybox devmem 0xd4035010 32 0x00000000 # SSDR
# busybox devmem 0xd4035010 32 0x00000000 # SSDR
# busybox devmem 0xd4035010 32 0x00000000 # SSDR
# busybox devmem 0xd4035010 32 0x00000000 # SSDR
# busybox devmem 0xd4035010 # SSDR
0x000000ff
# busybox devmem 0xd4035010 # SSDR
0x000000ef # Correct response
# busybox devmem 0xd4035010 # SSDR
0x00000040
# busybox devmem 0xd4035010 # SSDR
0x00000016
# busybox devmem 0xd4035010 # SSDR
0x00000000
# busybox devmem 0xd4035010 # SSDR
0x00000000
# busybox devmem 0xd4035010 # SSDR
0x00000000
# echo 1 >/sys/class/gpio/gpio46/value # (deassert CS)
#
Flipping off an on SSE, then running another transaction:
# busybox devmem 0xd4035000 32 0x00001907 # SSCR0, SSE off
# busybox devmem 0xd4035000 32 0x00001987 # SSCR0, SSE on
# echo 0 >/sys/class/gpio/gpio46/value # (assert CS)
# busybox devmem 0xd4035010 32 0x0000009f # SSDR (read ID command)
# busybox devmem 0xd4035010 32 0x00000000 # SSDR
# busybox devmem 0xd4035010 32 0x00000000 # SSDR
# busybox devmem 0xd4035010 32 0x00000000 # SSDR
# busybox devmem 0xd4035010 32 0x00000000 # SSDR
# busybox devmem 0xd4035010 32 0x00000000 # SSDR
# busybox devmem 0xd4035010 32 0x00000000 # SSDR
# busybox devmem 0xd4035010 # SSDR
0x000000ff
# busybox devmem 0xd4035010 # SSDR
0x000000ff # Garbage!
# busybox devmem 0xd4035010 # SSDR
0x000000ff # Oh no
# busybox devmem 0xd4035010 # SSDR
0x000000ff
# busybox devmem 0xd4035010 # SSDR
0x000000ff
# busybox devmem 0xd4035010 # SSDR
0x000000ff
# busybox devmem 0xd4035010 # SSDR
0x000000ff
# echo 1 >/sys/class/gpio/gpio46/value # (deassert CS)
#
Sometimes the response is not just ones, but something that looks like
bits of a response from a previous transaction.
I can't see a fix other than not touching the SSE altogether after the
device is first brought up.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lore.kernel.org/r/20200118094031.327373-1-lkundrak@v3.sk
Signed-off-by: Mark Brown <broonie@kernel.org>
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When checking if a register block is writable we must ensure that the
block does not start with or contain a non incrementing register.
Fixes: 8b9f9d4dc511 ("regmap: verify if register is writeable before writing operations")
Signed-off-by: Ben Whitten <ben.whitten@gmail.com>
Link: https://lore.kernel.org/r/20200118205625.14532-1-ben.whitten@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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The rt5645 and rt5650 have two suppliers, document them.
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20200114150151.8537-1-matthias.bgg@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Commit 62d5ae4cafb7 ("ASoC: max98090: save and restore SHDN when
changing sensitive registers SHDN bit") uses dapm_mutex to protect SHDN
bit. However, snd_soc_dapm_put_enum_double() in
max98090_dapm_put_enum_double() acquires the dapm_mutex again which
cause a deadlock.
Use snd_soc_dapm_put_enum_double_locked() instead to fix the deadlock.
Fixes: 62d5ae4cafb7 ("ASoC: max98090: save and restore SHDN when changing sensitive registers SHDN bit")
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200117073814.82441-4-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Adds snd_soc_dapm_put_enum_double_locked() for those use cases if
dapm_mutex has already locked.
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200117073814.82441-3-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Commit 2dc98af62c32 ("ASoC: max98090: fix lockdep warning") introduced
a helpful-less small lock: shdn_lock. Reverts the commit.
Reasons:
1. Lockdep should not be happy by either the original or current code.
From lockdep's point of view, there is a lock inversion anyway.
Let d = dapm_mutex, c = controls_rwsem, s = shdn_lock,
From the reported calling stack: lock acquisition order of
snd_soc_register_card() is: d -> c.
> snd_ctl_add_replace+0x3c/0x84
> dapm_create_or_share_kcontrol+0x24c/0x2e0
> snd_soc_dapm_new_widgets+0x308/0x594
> snd_soc_bind_card+0x80c/0xad4
> devm_snd_soc_register_card+0x34/0x6c
If calling snd_soc_dapm_put_enum_double() in kcontrol's put (e.g.
SOC_DAPM_ENUM_EXT), lock acquisition order is: c -> d. Note that,
snd_soc_dapm_put_enum_double() acquires d.
The possible lock inversion is always there if registering sound card
and putting mixer control happen at the same time. In fact, it never
happens because the control device don't show up to the userspace until
the sound card build success.
Commit 2dc98af62c32 ("ASoC: max98090: fix lockdep warning") changes the
order to: c -> s -> d. The lock inversion is still there.
2. Commit 62d5ae4cafb7 ("ASoC: max98090: save and restore SHDN when
changing sensitive registers SHDN bit") designed to use dapm_mutex to
protect SHDN bit. Use a separate lock breaks the protection.
DAPM changes SHDN bit automatically when it finds the path. Thus, any
code wants to change the SHDN bit, need to acquire the dapm_mutex first.
> SND_SOC_DAPM_SUPPLY("SHDN", M98090_REG_DEVICE_SHUTDOWN,
> M98090_SHDNN_SHIFT, 0, NULL, 0),
Fixes: 2dc98af62c32 ("ASoC: max98090: fix lockdep warning")
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20200117073814.82441-2-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Make use of a core helper to ensure the desired width is respected
when calling spi-mem operators.
Otherwise only the SPI controller will be matched with the flash chip,
which might lead to wrong widths. Also consider the width specified by
the user in the device tree.
Fixes: 84d043185dbe ("spi: Add a driver for the Freescale/NXP QuadSPI controller")
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20200114154613.8195-1-michael@walle.cc
Signed-off-by: Mark Brown <broonie@kernel.org>
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Now, snd_soc_dai_driver::bus_control is used for how to resume.
But, no driver which has bus_control has DAI driver suspend/resume
support.
This patch removes pointless bus_control from ALSA SoC.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87pnffx7i4.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Historically, CPU and Codec were implemented different, but now it is
merged as Component.
ALSA SoC is supporting suspend/resume at DAI and Component level.
The method is like below.
1) Suspend/Resume all CPU DAI if bus-control was 0
2) Suspend/Resume all Component
3) Suspend/Resume all CPU DAI if bus-control was 1
Historically 2) was Codec special operation.
Because CPU and Codec were merged into Component,
CPU suspend/resume has 3 chance to suspend(= 1/2/3), but
Codec suspend/resume has 1 chance (= 2).
Here, DAI side suspend/resume is caring bus-control, but no driver
which is supporting suspend/resume is setting bus-control.
This means 3) was never used.
Here, used parameter for suspend/resume component->dev and dai->dev are
same pointer.
For that reason, we can merge DAI and Component suspend/resume.
One note is that we should use 2), because it is caring BIAS level.
This patch removes 1) and 3).
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87r1zvx7i8.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can switch all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.
Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87sgkbx7ic.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can swtcih all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.
Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.
This patch moves DAI driver .suspend/.resume to Component driver
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87tv4rx7ij.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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This patch removes unused DAI driver .suspend/.resume
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87v9p7x7io.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can switch all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.
Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.
This patch moves DAI driver .suspend/.resume to Component driver
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87wo9nx7it.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can switch all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.
Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.
This patch moves DAI driver .suspend/.resume to Component driver
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87y2u3x7iy.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can switch all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.
Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.
This patch moves DAI driver .suspend/.resume to Component driver
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87zhejx7j4.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can switch all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.
Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.
This patch moves DAI driver .suspend/.resume to Component driver
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/871rrvym3p.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can switch all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.
Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.
This patch moves DAI driver .suspend/.resume to Component driver
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/8736cbym3x.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can switch all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.
Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.
This patch moves DAI driver .suspend/.resume to Component driver
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/874kwrym42.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can switch all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.
Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.
This patch moves DAI driver .suspend/.resume to Component driver
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/875zh7ym48.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can switch all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.
Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.
This patch moves DAI driver .suspend/.resume to Component driver
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/877e1nym4e.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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|
There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can switch all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.
Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.
This patch moves DAI driver .suspend/.resume to Component driver
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/878sm3ym4j.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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|
There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can switch all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.
Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.
This patch moves DAI driver .suspend/.resume to Component driver
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87a76jym4p.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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|
There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can switch all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.
Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.
This patch moves DAI driver .suspend/.resume to Component driver
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87d0bfym53.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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There is no big difference at implementation for .suspend/.resume
between DAI driver and Component driver.
But because some driver is using DAI version, thus ALSA SoC needs
to keep supporting it, hence, framework becoming verbose.
If we can switch all DAI driver .suspend/.resume to Component driver,
we can remove verbose code from ALSA SoC.
Driver is getting its private data via dai->dev.
But dai->dev and component->dev are same dev, thus, we can convert
these. For same reason, we can convert dai->active to
component->active if necessary.
This patch moves DAI driver .suspend/.resume to Component driver
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87blqzym4w.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Remove the return value checking, that is to align with the code
before adding snd_dmaengine_pcm_refine_runtime_hwparams function.
Otherwise it causes a regression on the HiKey board:
[ 17.721424] hi6210_i2s f7118000.i2s: ASoC: can't open component f7118000.i2s: -6
Fixes: e957204e732b ("ASoC: pcm_dmaengine: Extract snd_dmaengine_pcm_refine_runtime_hwparams")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reported-by: John Stultz <john.stultz@linaro.org>
Link: https://lore.kernel.org/r/1579505286-32085-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Crash happens in snd_soc_dapm_new_dai() when substream->private_data
access is made and substream is NULL here. This is seen for DAIs where
only playback or capture stream is defined. This seems to be happening
for codec2codec DAI link.
Both playback and capture are 0 during soc_new_pcm(). This is probably
happening because cpu_dai and codec_dai are both validated either for
SNDRV_PCM_STREAM_PLAYBACK or SNDRV_PCM_STREAM_CAPTURE.
Shouldn't be playback = 1 when,
- playback stream is available for codec_dai AND
- capture stream is available for cpu_dai
and vice-versa for capture = 1?
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1579443563-12287-1-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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With the introduction of per-FD address space, the same BO can be mapped
in different address space if the BO is globally visible (GEM_FLINK)
and opened in different context or if the dmabuf is self-imported. The
current implementation does not take case into account, and attaches the
mapping directly to the panfrost_gem_object.
Let's create a panfrost_gem_mapping struct and allow multiple mappings
per BO.
The mappings are refcounted which helps solve another problem where
mappings were torn down (GEM handle closed by userspace) while GPU
jobs accessing those BOs were still in-flight. Jobs now keep a
reference on the mappings they use.
v2 (robh):
- Minor review comment clean-ups from Steven
- Use list_is_singular helper
- Just WARN if we add a mapping when madvise state is not WILLNEED.
With that, drop the use of object_name_lock.
v3 (robh):
- Revert returning list iterator in panfrost_gem_mapping_get()
Fixes: a5efb4c9a562 ("drm/panfrost: Restructure the GEM object creation")
Fixes: 7282f7645d06 ("drm/panfrost: Implement per FD address spaces")
Cc: <stable@vger.kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200116021554.15090-1-robh@kernel.org
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Since v4.3-rc1 commit 0723c05fb75e44 ("arm64: enable more compressed
Image formats"), it is possible to build Image.{bz2,lz4,lzma,lzo}
AArch64 images. However, the commit missed adding support for removing
those images on 'make ARCH=arm64 (dist)clean'.
Fix this by adding them to the target list.
Make sure to match the order of the recipes in the makefile.
Cc: stable@vger.kernel.org # v4.3+
Fixes: 0723c05fb75e44 ("arm64: enable more compressed Image formats")
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Will Deacon <will@kernel.org>
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these macros are never used from introduced. better to
remove them.
Link: https://lore.kernel.org/r/1579602338-57079-1-git-send-email-alex.shi@linux.alibaba.com
Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Bharath Vedartham <linux.bhar@gmail.com>
Cc: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Cc: Jason Yan <yanaijie@huawei.com>
Cc: zhengbin <zhengbin13@huawei.com>
Cc: Jia-Ju Bai <baijiaju1990@gmail.com>
Cc: reiserfs-devel@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
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__QUOTA_V2_PARANOIA macro is never used. better to remove it.
Link: https://lore.kernel.org/r/1579602334-57039-1-git-send-email-alex.shi@linux.alibaba.com
Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Jan Kara <jack@suse.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
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in the same manner as commit 690afc165bb3 ("net: ip6_gre: fix moving
ip6gre between namespaces"), fix namespace moving as it was broken since
commit 2e15ea390e6f ("ip_gre: Add support to collect tunnel metadata.").
Indeed, the ip6_gre commit removed the local flag for collect_md
condition, so there is no reason to keep it for ip_gre/ip_tunnel.
this patch will fix both ip_tunnel and ip_gre modules.
Fixes: 2e15ea390e6f ("ip_gre: Add support to collect tunnel metadata.")
Signed-off-by: William Dauchy <w.dauchy@criteo.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We can store reference to kvm_stats_debugfs_item instead of copying
its values to kvm_stat_data.
This allows us to remove duplicated code and usage of temporary
kvm_stat_data inside vm_stat_get et al.
Signed-off-by: Milan Pandurov <milanpa@amazon.de>
Reviewed-by: Alexander Graf <graf@amazon.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Remove the bogus 64-bit only condition from the check that disables MMIO
spte optimization when the system supports the max PA, i.e. doesn't have
any reserved PA bits. 32-bit KVM always uses PAE paging for the shadow
MMU, and per Intel's SDM:
PAE paging translates 32-bit linear addresses to 52-bit physical
addresses.
The kernel's restrictions on max physical addresses are limits on how
much memory the kernel can reasonably use, not what physical addresses
are supported by hardware.
Fixes: ce88decffd17 ("KVM: MMU: mmio page fault support")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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In case writing to vmread destination operand result in a #PF, vmread
should not call nested_vmx_succeed() to set rflags to specify success.
Similar to as done in VMPTRST (See handle_vmptrst()).
Reviewed-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: stable@vger.kernel.org
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Rework the handling of nEPT's bad memtype/XWR checks to micro-optimize
the checks as much as possible. Move the check to a separate helper,
__is_bad_mt_xwr(), which allows the guest_rsvd_check usage in
paging_tmpl.h to omit the check entirely for paging32/64 (bad_mt_xwr is
always zero for non-nEPT) while retaining the bitwise-OR of the current
code for the shadow_zero_check in walk_shadow_page_get_mmio_spte().
Add a comment for the bitwise-OR usage in the mmio spte walk to avoid
future attempts to "fix" the code, which is what prompted this
optimization in the first place[*].
Opportunistically remove the superfluous '!= 0' and parantheses, and
use BIT_ULL() instead of open coding its equivalent.
The net effect is that code generation is largely unchanged for
walk_shadow_page_get_mmio_spte(), marginally better for
ept_prefetch_invalid_gpte(), and significantly improved for
paging32/64_prefetch_invalid_gpte().
Note, walk_shadow_page_get_mmio_spte() can't use a templated version of
the memtype/XRW as it works on the host's shadow PTEs, e.g. checks that
KVM hasn't borked its EPT tables. Even if it could be templated, the
benefits of having a single implementation far outweight the few uops
that would be saved for NPT or non-TDP paging, e.g. most compilers
inline it all the way to up kvm_mmu_page_fault().
[*] https://lkml.kernel.org/r/20200108001859.25254-1-sean.j.christopherson@intel.com
Cc: Jim Mattson <jmattson@google.com>
Cc: David Laight <David.Laight@ACULAB.COM>
Cc: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Move the !PRESENT and !ACCESSED checks in FNAME(prefetch_invalid_gpte)
above the call to is_rsvd_bits_set(). For a well behaved guest, the
!PRESENT and !ACCESSED are far more likely to evaluate true than the
reserved bit checks, and they do not require additional memory accesses.
Before:
Dump of assembler code for function paging32_prefetch_invalid_gpte:
0x0000000000044240 <+0>: callq 0x44245 <paging32_prefetch_invalid_gpte+5>
0x0000000000044245 <+5>: mov %rcx,%rax
0x0000000000044248 <+8>: shr $0x7,%rax
0x000000000004424c <+12>: and $0x1,%eax
0x000000000004424f <+15>: lea 0x0(,%rax,4),%r8
0x0000000000044257 <+23>: add %r8,%rax
0x000000000004425a <+26>: mov %rcx,%r8
0x000000000004425d <+29>: and 0x120(%rsi,%rax,8),%r8
0x0000000000044265 <+37>: mov 0x170(%rsi),%rax
0x000000000004426c <+44>: shr %cl,%rax
0x000000000004426f <+47>: and $0x1,%eax
0x0000000000044272 <+50>: or %rax,%r8
0x0000000000044275 <+53>: jne 0x4427c <paging32_prefetch_invalid_gpte+60>
0x0000000000044277 <+55>: test $0x1,%cl
0x000000000004427a <+58>: jne 0x4428a <paging32_prefetch_invalid_gpte+74>
0x000000000004427c <+60>: mov %rdx,%rsi
0x000000000004427f <+63>: callq 0x44080 <drop_spte>
0x0000000000044284 <+68>: mov $0x1,%eax
0x0000000000044289 <+73>: retq
0x000000000004428a <+74>: xor %eax,%eax
0x000000000004428c <+76>: and $0x20,%ecx
0x000000000004428f <+79>: jne 0x44289 <paging32_prefetch_invalid_gpte+73>
0x0000000000044291 <+81>: mov %rdx,%rsi
0x0000000000044294 <+84>: callq 0x44080 <drop_spte>
0x0000000000044299 <+89>: mov $0x1,%eax
0x000000000004429e <+94>: jmp 0x44289 <paging32_prefetch_invalid_gpte+73>
End of assembler dump.
After:
Dump of assembler code for function paging32_prefetch_invalid_gpte:
0x0000000000044240 <+0>: callq 0x44245 <paging32_prefetch_invalid_gpte+5>
0x0000000000044245 <+5>: test $0x1,%cl
0x0000000000044248 <+8>: je 0x4424f <paging32_prefetch_invalid_gpte+15>
0x000000000004424a <+10>: test $0x20,%cl
0x000000000004424d <+13>: jne 0x4425d <paging32_prefetch_invalid_gpte+29>
0x000000000004424f <+15>: mov %rdx,%rsi
0x0000000000044252 <+18>: callq 0x44080 <drop_spte>
0x0000000000044257 <+23>: mov $0x1,%eax
0x000000000004425c <+28>: retq
0x000000000004425d <+29>: mov %rcx,%rax
0x0000000000044260 <+32>: mov (%rsi),%rsi
0x0000000000044263 <+35>: shr $0x7,%rax
0x0000000000044267 <+39>: and $0x1,%eax
0x000000000004426a <+42>: lea 0x0(,%rax,4),%r8
0x0000000000044272 <+50>: add %r8,%rax
0x0000000000044275 <+53>: mov %rcx,%r8
0x0000000000044278 <+56>: and 0x120(%rsi,%rax,8),%r8
0x0000000000044280 <+64>: mov 0x170(%rsi),%rax
0x0000000000044287 <+71>: shr %cl,%rax
0x000000000004428a <+74>: and $0x1,%eax
0x000000000004428d <+77>: mov %rax,%rcx
0x0000000000044290 <+80>: xor %eax,%eax
0x0000000000044292 <+82>: or %rcx,%r8
0x0000000000044295 <+85>: je 0x4425c <paging32_prefetch_invalid_gpte+28>
0x0000000000044297 <+87>: mov %rdx,%rsi
0x000000000004429a <+90>: callq 0x44080 <drop_spte>
0x000000000004429f <+95>: mov $0x1,%eax
0x00000000000442a4 <+100>: jmp 0x4425c <paging32_prefetch_invalid_gpte+28>
End of assembler dump.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The KVM MMIO support uses bit 51 as the reserved bit to cause nested page
faults when a guest performs MMIO. The AMD memory encryption support uses
a CPUID function to define the encryption bit position. Given this, it is
possible that these bits can conflict.
Use svm_hardware_setup() to override the MMIO mask if memory encryption
support is enabled. Various checks are performed to ensure that the mask
is properly defined and rsvd_bits() is used to generate the new mask (as
was done prior to the change that necessitated this patch).
Fixes: 28a1f3ac1d0c ("kvm: x86: Set highest physical address bits in non-present/reserved SPTEs")
Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The function nested_vmx_prepare_msr_bitmap() declaration is below its
implementation. So this is meaningless and should be removed.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Rename bit() to __feature_bit() to give it a more descriptive name, and
add a macro, feature_bit(), to stuff the X68_FEATURE_ prefix to keep
line lengths manageable for code that hardcodes the bit to be retrieved.
No functional change intended.
Cc: Jim Mattson <jmattson@google.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Add build-time checks to ensure KVM isn't trying to do a reverse CPUID
lookup on Linux-defined feature bits, along with comments to explain
the gory details of X86_FEATUREs and bit().
No functional change intended.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Add an entry for CPUID_7_1_EAX in the reserve_cpuid array in preparation
for incorporating the array in bit() build-time assertions, specifically
to avoid an assertion on F(AVX512_BF16) in do_cpuid_7_mask().
No functional change intended.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Move bit() to cpuid.h in preparation for incorporating the reverse_cpuid
array in bit() build-time assertions. Opportunistically use the BIT()
macro instead of open-coding the shift.
No functional change intended.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Add feature-specific helpers for querying guest CPUID support from the
emulator instead of having the emulator do a full CPUID and perform its
own bit tests. The primary motivation is to eliminate the emulator's
usage of bit() so that future patches can add more extensive build-time
assertions on the usage of bit() without having to expose yet more code
to the emulator.
Note, providing a generic guest_cpuid_has() to the emulator doesn't work
due to the existing built-time assertions in guest_cpuid_has(), which
require the feature being checked to be a compile-time constant.
No functional change intended.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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