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

From: Jiaxun Yang
Date: Fri Dec 01 2023 - 06:59:00 EST




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@xxxxxxxxxxx/
>
> Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
> ---
> 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@xxxxxxxxxxx>

--
- Jiaxun