linux-kernel - Re: [PATCH 0/8] MIPS: Unify low-level debugging functionalities

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Message-Id: <ce132300-e2cc-4966-8dc8-35cf5f6d3f83@app.fastmail.com>
Date:   Fri, 01 Dec 2023 11:58:34 +0000
From:   "Jiaxun Yang" <jiaxun.yang@...goat.com>
To:     "Thomas Bogendoerfer" <tsbogend@...ha.franken.de>
Cc:     "linux-mips@...r.kernel.org" <linux-mips@...r.kernel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/8] MIPS: Unify low-level debugging functionalities



在2023年10月29日十月 上午2:53，Jiaxun Yang写道：
> Hi all,

Hi Thomas,

A gentle ping on this series :-)

I've got too much patch floating out there.

Thanks
- Jiaxun

>
> This is a attempt to bring all low-level debugging print functions
> together and provide a arm-like low-level debugging interface and
> a further function to debug early exceptions.
>
> The plan is to elimiate platform specific early_printk and
> cps-vec-ns16550 by debug_ll and earlycon.
>
> cps-vec-ns16550 is leave unchanged for now due to pending patch[1].
>
> Hope you'll find them handy :-)
>
> Happy hacking!
>
> Thanks
> Jiaxun
>
> [1]: 
> https://lore.kernel.org/linux-mips/20231027221106.405666-6-jiaxun.yang@flygoat.com/
>
> Signed-off-by: Jiaxun Yang <jiaxun.yang@...goat.com>
> ---
> Jiaxun Yang (8):
>       MIPS: asm: Move strings to .rodata.str section
>       MIPS: debug: Implement low-level debugging functions
>       MIPS: debug: Hook up DEBUG_LL with early printk
>       MIPS: debug: Provide an early exception vector for low-level debugging
>       MIPS: debug_ll: Add Kconfig symbols for some 8250 uarts
>       MIPS: debug_ll: Implement support for Alchemy uarts
>       MIPS: debug_ll: Implement support for AR933X uarts
>       MIPS: zboot: Convert to use debug_ll facilities
>
>  arch/mips/Kconfig                        |  12 +-
>  arch/mips/Kconfig.debug                  | 212 +++++++++++++++++++++++++++----
>  arch/mips/boot/compressed/Makefile       |   9 +-
>  arch/mips/boot/compressed/dbg.c          |  37 ------
>  arch/mips/boot/compressed/debug-vec.S    |   3 +
>  arch/mips/boot/compressed/debug.S        |   3 +
>  arch/mips/boot/compressed/decompress.c   |   6 +-
>  arch/mips/boot/compressed/head.S         |   6 +
>  arch/mips/boot/compressed/uart-16550.c   |  47 -------
>  arch/mips/boot/compressed/uart-alchemy.c |   7 -
>  arch/mips/boot/compressed/uart-ath79.c   |   2 -
>  arch/mips/boot/compressed/uart-prom.c    |   7 -
>  arch/mips/include/asm/asm.h              |   2 +-
>  arch/mips/include/debug/8250.S           |  60 +++++++++
>  arch/mips/include/debug/alchemy.S        |  46 +++++++
>  arch/mips/include/debug/ar933x.S         |  41 ++++++
>  arch/mips/include/debug/uhi.S            |  48 +++++++
>  arch/mips/kernel/Makefile                |   3 +
>  arch/mips/kernel/debug-vec.S             | 194 ++++++++++++++++++++++++++++
>  arch/mips/kernel/debug.S                 | 130 +++++++++++++++++++
>  arch/mips/kernel/early_printk.c          |  19 +++
>  arch/mips/kernel/head.S                  |   4 +
>  22 files changed, 750 insertions(+), 148 deletions(-)
> ---
> base-commit: 66f1e1ea3548378ff6387b1ce0b40955d54e86aa
> change-id: 20231028-mips_debug_ll-ef9cce16767b
>
> Best regards,
> -- 
> Jiaxun Yang <jiaxun.yang@...goat.com>

-- 
- Jiaxun