Nuno Sa 862cf85fef iio: commom: st_sensors: ensure proper DMA alignment ...

Aligning the buffer to the L1 cache is not sufficient in some platforms
as they might have larger cacheline sizes for caches after L1 and thus,
we can't guarantee DMA safety.

That was the whole reason to introduce IIO_DMA_MINALIGN in [1]. Do the same
for st_sensors common buffer.

While at it, moved the odr_lock before buffer_data as we definitely
don't want any other data to share a cacheline with the buffer.

[1]: https://lore.kernel.org/linux-iio/20220508175712.647246-2-jic23@kernel.org/

Fixes: e031d5f558 ("iio:st_sensors: remove buffer allocation at each buffer enable")
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20240131-dev_dma_safety_stm-v2-1-580c07fae51b@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

2024-02-04 15:01:14 +00:00

..

accel

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adc

iio: adc: ad_sigma_delta: ensure proper DMA alignment

2024-01-22 18:59:07 +00:00

afe

iio: afe: rescale: add offset support

2022-02-27 13:38:10 +00:00

common

iio: commom: st_sensors: ensure proper DMA alignment

2024-02-04 15:01:14 +00:00

dac

…

frequency

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gyro

iio: gyro: itg3200_core: do not use internal iio_dev lock

2022-11-23 19:43:58 +00:00

imu

iio: imu: adis: ensure proper DMA alignment

2024-01-22 18:59:07 +00:00

timer

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buffer_impl.h

iio: Don't silently expect attribute types

2022-11-23 19:44:04 +00:00

buffer-dma.h

iio: buffer-dma: Get rid of outgoing queue

2023-12-21 11:28:47 +00:00

buffer-dmaengine.h

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buffer.h

iio: Add output buffer support

2021-10-19 08:30:44 +01:00

configfs.h

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consumer.h

iio: inkern: Add a helper to query an available minimum raw value

2023-07-09 22:48:17 +01:00

driver.h

iio: inkern: introduce devm_iio_map_array_register() short-hand function

2021-10-19 08:27:34 +01:00

events.h

…

hw-consumer.h

…

iio-gts-helper.h

iio: fix doc for iio_gts_find_sel_by_int_time

2023-05-13 17:54:57 +01:00

iio-opaque.h

iio: core: move 'mlock' to 'struct iio_dev_opaque'

2022-11-23 19:44:00 +00:00

iio.h

iio: linux/iio.h: fix Excess kernel-doc description warning

2023-12-26 16:02:46 +00:00

kfifo_buf.h

iio: Don't silently expect attribute types

2022-11-23 19:44:04 +00:00

machine.h

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sw_device.h

iio: Remove unused declarations

2023-09-12 10:42:03 +01:00

sw_trigger.h

iio: Remove unused declarations

2023-09-12 10:42:03 +01:00

sysfs.h

iio: Add IIO_STATIC_CONST_DEVICE_ATTR

2022-11-23 19:44:03 +00:00

trigger_consumer.h

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trigger.h

iio: trigger: Add simple trigger_validation helper

2023-05-23 21:20:17 +01:00

triggered_buffer.h

iio: Don't silently expect attribute types

2022-11-23 19:44:04 +00:00

triggered_event.h

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types.h

iio: core: introduce trough info element for minimum values

2023-12-11 19:37:10 +00:00