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Message-Id: <20240304085455.125063-1-dawei.li@shingroup.cn> Date: Mon, 4 Mar 2024 16:54:55 +0800 From: Dawei Li <dawei.li@...ngroup.cn> To: geert@...ux-m68k.org Cc: linux-m68k@...ts.linux-m68k.org, linux-kernel@...r.kernel.org, Dawei Li <dawei.li@...ngroup.cn> Subject: [PATCH] m68k: Calculate THREAD_SIZE from THREAD_SIZE_ORDER Current THREAD_SIZE_OERDER implementatin is not generic for common case. Improve it by: - Define THREAD_SIZE_ORDER by specific platform configs. - Calculate THREAD_SIZE by THREAD_SIZE_ORDER. Suggested-by: Geert Uytterhoeven <geert@...ux-m68k.org> Signed-off-by: Dawei Li <dawei.li@...ngroup.cn> --- V1 -> V2: - Remove ilog2(). - Calculate THREAD_SIZE by THREAD_SIZE_ORDER. V1: https://lore.kernel.org/lkml/20240228085824.74639-1-dawei.li@shingroup.cn/ arch/m68k/include/asm/thread_info.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/m68k/include/asm/thread_info.h b/arch/m68k/include/asm/thread_info.h index 31be2ad999ca..3e31adbddc75 100644 --- a/arch/m68k/include/asm/thread_info.h +++ b/arch/m68k/include/asm/thread_info.h @@ -12,14 +12,15 @@ */ #if PAGE_SHIFT < 13 #ifdef CONFIG_4KSTACKS -#define THREAD_SIZE 4096 +#define THREAD_SIZE_ORDER 0 #else -#define THREAD_SIZE 8192 +#define THREAD_SIZE_ORDER 1 #endif #else -#define THREAD_SIZE PAGE_SIZE +#define THREAD_SIZE_ORDER 0 #endif -#define THREAD_SIZE_ORDER ((THREAD_SIZE / PAGE_SIZE) - 1) + +#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) #ifndef __ASSEMBLY__ -- 2.27.0
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