mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 17:08:10 +00:00
93f1c150cb
In preparation for adding CQHCI crypto engine (inline encryption) support, add the code required to make mmc_core and mmc_block aware of inline encryption. Specifically: - Add a capability flag MMC_CAP2_CRYPTO to struct mmc_host. Drivers will set this if the host and driver support inline encryption. - Embed a blk_keyslot_manager in struct mmc_host. Drivers will initialize this (as a device-managed resource) if the host and driver support inline encryption. mmc_block registers this keyslot manager with the request_queue of any MMC card attached to the host. - Make mmc_block copy the crypto keyslot and crypto data unit number from struct request to struct mmc_request, so that drivers will have access to them. - If the MMC host is reset, reprogram all the keyslots to ensure that the software state stays in sync with the hardware state. Co-developed-by: Satya Tangirala <satyat@google.com> Signed-off-by: Satya Tangirala <satyat@google.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Satya Tangirala <satyat@google.com> Reviewed-and-tested-by: Peng Zhou <peng.zhou@mediatek.com> Signed-off-by: Eric Biggers <ebiggers@google.com> Link: https://lore.kernel.org/r/20210126001456.382989-2-ebiggers@kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
91 lines
2.8 KiB
Text
91 lines
2.8 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
|
|
#
|
|
# MMC core configuration
|
|
#
|
|
config PWRSEQ_EMMC
|
|
tristate "HW reset support for eMMC"
|
|
default y
|
|
depends on OF
|
|
help
|
|
This selects Hardware reset support aka pwrseq-emmc for eMMC
|
|
devices. By default this option is set to y.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called pwrseq_emmc.
|
|
|
|
config PWRSEQ_SD8787
|
|
tristate "HW reset support for SD8787 BT + Wifi module"
|
|
depends on OF && (MWIFIEX || BT_MRVL_SDIO || LIBERTAS_SDIO)
|
|
help
|
|
This selects hardware reset support for the SD8787 BT + Wifi
|
|
module. By default this option is set to n.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called pwrseq_sd8787.
|
|
|
|
config PWRSEQ_SIMPLE
|
|
tristate "Simple HW reset support for MMC"
|
|
default y
|
|
depends on OF
|
|
help
|
|
This selects simple hardware reset support aka pwrseq-simple for MMC
|
|
devices. By default this option is set to y.
|
|
|
|
This driver can also be built as a module. If so, the module
|
|
will be called pwrseq_simple.
|
|
|
|
config MMC_BLOCK
|
|
tristate "MMC block device driver"
|
|
depends on BLOCK
|
|
default y
|
|
help
|
|
Say Y here to enable the MMC block device driver support.
|
|
This provides a block device driver, which you can use to
|
|
mount the filesystem. Almost everyone wishing MMC support
|
|
should say Y or M here.
|
|
|
|
config MMC_BLOCK_MINORS
|
|
int "Number of minors per block device"
|
|
depends on MMC_BLOCK
|
|
range 4 256
|
|
default 8
|
|
help
|
|
Number of minors per block device. One is needed for every
|
|
partition on the disk (plus one for the whole disk).
|
|
|
|
Number of total MMC minors available is 256, so your number
|
|
of supported block devices will be limited to 256 divided
|
|
by this number.
|
|
|
|
Default is 8 to be backwards compatible with previous
|
|
hardwired device numbering.
|
|
|
|
If unsure, say 8 here.
|
|
|
|
config SDIO_UART
|
|
tristate "SDIO UART/GPS class support"
|
|
depends on TTY
|
|
help
|
|
SDIO function driver for SDIO cards that implements the UART
|
|
class, as well as the GPS class which appears like a UART.
|
|
|
|
config MMC_TEST
|
|
tristate "MMC host test driver"
|
|
help
|
|
Development driver that performs a series of reads and writes
|
|
to a memory card in order to expose certain well known bugs
|
|
in host controllers. The tests are executed by writing to the
|
|
"test" file in debugfs under each card. Note that whatever is
|
|
on your card will be overwritten by these tests.
|
|
|
|
This driver is only of interest to those developing or
|
|
testing a host driver. Most people should say N here.
|
|
|
|
config MMC_CRYPTO
|
|
bool "MMC Crypto Engine Support"
|
|
depends on BLK_INLINE_ENCRYPTION
|
|
help
|
|
Enable Crypto Engine Support in MMC.
|
|
Enabling this makes it possible for the kernel to use the crypto
|
|
capabilities of the MMC device (if present) to perform crypto
|
|
operations on data being transferred to/from the device.
|