riscv: stack: Add config of thread stack size

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The commit 0cac21b02b ("riscv: use 16KB kernel stack on 64-bit")
increases the thread size mandatory, but some scenarios, such as D1 with
a small memory footprint, would suffer from that. After independent irq
stack support, let's give users a choice to determine their custom stack
size.

Link: https://lore.kernel.org/linux-riscv/5f6e6c39-b846-4392-b468-02202404de28@www.fastmail.com/
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Jisheng Zhang <jszhang@kernel.org>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
Link: https://lore.kernel.org/r/20230614013018.2168426-4-guoren@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

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Guo Ren 2023-06-13 21:30:18 -04:00 • committed by Palmer Dabbelt

parent dd69d07a5a

commit a7555f6b62

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2 changed files with 11 additions and 11 deletions

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10

arch/riscv/Kconfig

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12

arch/riscv/include/asm/thread_info.h

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