9f5db8b5ea
In order to be able to unify 64 and 32 bit implementations of
wr_reg64, let's convert it to use helpers from
<linux/io-64-nonatomic-hi-lo.h> first. Here are the steps of the
transformation:
1. Inline wr_reg32 helpers:
if (!caam_imx && caam_little_end) {
if (caam_little_end) {
iowrite32(data >> 32, (u32 __iomem *)(reg) + 1);
iowrite32(data, (u32 __iomem *)(reg));
} else {
iowrite32be(data >> 32, (u32 __iomem *)(reg) + 1);
iowrite32be(data, (u32 __iomem *)(reg));
}
} else {
if (caam_little_end) {
iowrite32(data >> 32, (u32 __iomem *)(reg));
iowrite32(data, (u32 __iomem *)(reg) + 1);
} else {
iowrite32be(data >> 32, (u32 __iomem *)(reg));
iowrite32be(data, (u32 __iomem *)(reg) + 1);
}
}
2. Transfrom the conditionals such that the check for
'caam_little_end' is at the top level:
if (caam_little_end) {
if (!caam_imx) {
iowrite32(data >> 32, (u32 __iomem *)(reg) + 1);
iowrite32(data, (u32 __iomem *)(reg));
} else {
iowrite32(data >> 32, (u32 __iomem *)(reg));
iowrite32(data, (u32 __iomem *)(reg) + 1);
}
} else {
iowrite32be(data >> 32, (u32 __iomem *)(reg));
iowrite32be(data, (u32 __iomem *)(reg) + 1);
}
3. Invert the check for !caam_imx:
if (caam_little_end) {
if (caam_imx) {
iowrite32(data >> 32, (u32 __iomem *)(reg));
iowrite32(data, (u32 __iomem *)(reg) + 1);
} else {
iowrite32(data >> 32, (u32 __iomem *)(reg) + 1);
iowrite32(data, (u32 __iomem *)(reg));
}
} else {
iowrite32be(data >> 32, (u32 __iomem *)(reg));
iowrite32be(data, (u32 __iomem *)(reg) + 1);
}
4. Make use of iowrite64* helpers from <linux/io-64-nonatomic-hi-lo.h>
if (caam_little_end) {
if (caam_imx) {
iowrite32(data >> 32, (u32 __iomem *)(reg));
iowrite32(data, (u32 __iomem *)(reg) + 1);
} else {
iowrite64(data, reg);
}
} else {
iowrite64be(data, reg);
}
No functional change intended.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Cc: Chris Spencer <christopher.spencer@sea.co.uk>
Cc: Cory Tusar <cory.tusar@zii.aero>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Horia Geantă <horia.geanta@nxp.com>
Cc: Aymen Sghaier <aymen.sghaier@nxp.com>
Cc: Leonard Crestez <leonard.crestez@nxp.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
|
||
|---|---|---|
| Documentation | ||
| LICENSES | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
README
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.