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6 Commits

Author SHA1 Message Date
Huacai Chen
f339bd3b51 Docs/LoongArch: Add advanced extended IRQ model description 
Introduce the advanced extended interrupt controllers (AVECINTC). This
feature will allow each core to have 256 independent interrupt vectors
and MSI interrupts can be independently routed to any vector on any CPU.

The whole topology of irqchips in LoongArch machines looks like this if
AVECINTC is supported:

  +-----+     +-----------------------+     +-------+
  | IPI | --> |        CPUINTC        | <-- | Timer |
  +-----+     +-----------------------+     +-------+
               ^          ^          ^
               |          |          |
        +---------+ +----------+ +---------+     +-------+
        | EIOINTC | | AVECINTC | | LIOINTC | <-- | UARTs |
        +---------+ +----------+ +---------+     +-------+
             ^            ^
             |            |
        +---------+  +---------+
        | PCH-PIC |  | PCH-MSI |
        +---------+  +---------+
          ^     ^           ^
          |     |           |
  +---------+ +---------+ +---------+
  | Devices | | PCH-LPC | | Devices |
  +---------+ +---------+ +---------+
                   ^
                   |
              +---------+
              | Devices |
              +---------+

Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Tianyang Zhang <zhangtianyang@loongson.cn>
 2024-09-24 15:32:20 +08:00
Linus Torvalds
1b1934dbbd A handful of late-arriving documentation fixes. 
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Merge tag 'docs-6.8-2' of git://git.lwn.net/linux

Pull documentation fixes from Jonathan Corbet:
 "A handful of late-arriving documentation fixes"

* tag 'docs-6.8-2' of git://git.lwn.net/linux:
  docs, kprobes: Add loongarch as supported architecture
  docs, kprobes: Update email address of Masami Hiramatsu
  docs: admin-guide: hw_random: update rng-tools website
  Documentation/core-api: fix spelling mistake in workqueue
  docs: kernel_feat.py: fix potential command injection
  Documentation: constrain alabaster package to older versions
 2024-01-17 11:49:11 -08:00
Vegard Nossum
c48a7c44a1 docs: kernel_feat.py: fix potential command injection 
The kernel-feat directive passes its argument straight to the shell.
This is unfortunate and unnecessary.

Let's always use paths relative to $srctree/Documentation/ and use
subprocess.check_call() instead of subprocess.Popen(shell=True).

This also makes the code shorter.

This is analogous to commit 3231dd5862 ("docs: kernel_abi.py: fix
command injection") where we did exactly the same thing for
kernel_abi.py, somehow I completely missed this one.

Link: https://fosstodon.org/@jani/111676532203641247
Reported-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20240110174758.3680506-1-vegard.nossum@oracle.com
 2024-01-11 09:21:01 -07:00
Yanteng Si
10301780c9 Docs/LoongArch: Update links in LoongArch introduction.rst 
LoongArch-Vol1 has been updated to v1.10, the links in the documentation
are out of date, let's update it.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
 2023-11-21 15:03:25 +08:00
Tiezhu Yang
84fafe9810 docs/LoongArch: Update the links of ABI 
The current links of ABI can not be found for some time, let us fix
the broken links.

By the way, the latest and official ABI documentation releases are
available at https://github.com/loongson/la-abi-specs, but there are
no Chinese and pdf versions for now, so just do the minimal changes
to update the links so that they can be found, hope there are stable
links in the future.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
 2023-09-20 14:26:29 +08:00
Costa Shulyupin
51712e49b4 docs: move loongarch under arch 
and fix all in-tree references.

Architecture-specific documentation is being moved into Documentation/arch/
as a way of cleaning up the top-level documentation directory and making
the docs hierarchy more closely match the source hierarchy.

Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Acked-by: Huacai Chen <chenhuacai@loongson.cn>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20230717192456.453124-1-costa.shul@redhat.com
 2023-08-18 11:03:52 -06:00