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Harini T babc8a52fe watchdog: xilinx_wwdt: Calculate max_hw_heartbeat_ms using clock frequency 
[ Upstream commit 006778844c ]

In the current implementation, the value of max_hw_heartbeat_ms is set
to the timeout period expressed in milliseconds and fails to verify if
the close window percentage exceeds the maximum value that the hardware
supports.

1. Calculate max_hw_heartbeat_ms based on input clock frequency.
2. Update frequency check to require a minimum frequency of 1Mhz.
3. Limit the close and open window percent to hardware supported value
to avoid truncation.
4. If the user input timeout exceeds the maximum timeout supported, use
only open window and the framework supports the higher timeouts.

Fixes: 12984cea1b ("watchdog: xilinx_wwdt: Add Versal window watchdog support")
Signed-off-by: Harini T <harini.t@amd.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20240913113230.1939373-1-harini.t@amd.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-12-14 19:59:31 +01:00
arch openrisc: Use asm-generic's version of fix_to_virt() & virt_to_fix() 2024-12-11 16:13:43 +01:00
block block, bfq: fix bfqq uaf in bfq_limit_depth() 2024-12-09 10:33:00 +01:00
certs certs: Reference revocation list for all keyrings 2023-08-17 20:12:41 +00:00
crypto crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY 2024-12-09 10:31:48 +01:00
Documentation dt-bindings: serial: rs485: Fix rs485-rts-delay property 2024-12-09 10:32:49 +01:00
drivers watchdog: xilinx_wwdt: Calculate max_hw_heartbeat_ms using clock frequency 2024-12-14 19:59:31 +01:00
fs btrfs: don't BUG_ON on ENOMEM from btrfs_lookup_extent_info() in walk_down_proc() 2024-12-09 10:33:10 +01:00
include util_macros.h: fix/rework find_closest() macros 2024-12-09 10:33:06 +01:00
init Compiler Attributes: disable __counted_by for clang < 19.1.3 2024-12-09 10:32:46 +01:00
io_uring io_uring: fix possible deadlock in io_register_iowq_max_workers() 2024-11-17 15:08:58 +01:00
ipc ipc: fix memleak if msg_init_ns failed in create_ipc_ns 2024-12-09 10:32:54 +01:00
kernel posix-timers: Target group sigqueue to current task only if not exiting 2024-12-09 10:33:11 +01:00
lib maple_tree: refine mas_store_root() on storing NULL 2024-12-09 10:33:04 +01:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm mm/slub: Avoid list corruption when removing a slab from the full list 2024-12-09 10:33:06 +01:00
net sunrpc: fix one UAF issue caused by sunrpc kernel tcp socket 2024-12-09 10:33:00 +01:00
rust rust: macros: fix documentation of the paste! macro 2024-12-09 10:32:25 +01:00
samples bpf: Fix the xdp_adjust_tail sample prog issue 2024-12-09 10:32:02 +01:00
scripts modpost: remove incorrect code in do_eisa_entry() 2024-12-09 10:32:59 +01:00
security apparmor: test: Fix memory leak for aa_unpack_strdup() 2024-12-09 10:32:45 +01:00
sound ALSA: hda/realtek: Apply quirk for Medion E15433 2024-12-09 10:32:52 +01:00
tools tools/nolibc: s390: include std.h 2024-12-09 10:32:45 +01:00
usr initramfs: Encode dependency on KBUILD_BUILD_TIMESTAMP 2023-06-06 17:54:49 +09:00
virt KVM: Use dedicated mutex to protect kvm_usage_count to avoid deadlock 2024-10-04 16:29:47 +02:00
.clang-format iommu: Add for_each_group_device() 2023-05-23 08:15:51 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Remove *.orig pattern from .gitignore 2024-10-04 16:29:44 +02:00
.mailmap 20 hotfixes. 12 are cc:stable and the remainder address post-6.5 issues 2023-10-24 09:52:16 -10:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS USB: Remove Wireless USB and UWB documentation 2023-08-09 14:17:32 +02:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS membarrier: riscv: Add full memory barrier in switch_mm() 2024-09-12 11:11:45 +02:00
Makefile Linux 6.6.65 2024-12-11 16:13:43 +01:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.