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([94.75.70.14]) by smtp.gmail.com with ESMTPSA id x29-20020ac259dd000000b00507b869b068sm1494100lfn.302.2023.11.27.06.13.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Nov 2023 06:13:40 -0800 (PST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 2b39ff78-8d2f-11ee-98e2-6d05b1d4d9a1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1701094422; x=1701699222; darn=lists.xenproject.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=RX3zgR/k3naH0cxTUjVNfFsJEx/hUFvxNDBlPipUY+c=; b=lzgv7d3v2jzlz5bDZm9QASV0BY8LTL+oqHbP5EmNJnUKCY9poi3YHrfkWAuxHGBz0w co3e5bWE1RpaNSVQssvWqwDfH96E0q1jwfzoSBAIWkgUvLThLQHlEjlFhwEU9s052520 vDH7R5p0JygHeTXN4T/kymsvmM7yjFykklA6ySVJKzxA9Q6LrvGqaPVvVBabZbTL2fdC Xeni94Evj7PhGPDzGRqngBe1ySRd13d9cQdzwDZHUIc9tOzXyBgeXLe6di8B7C3lHa// LrY41UtLfd6nXNV7UuLTqd8TQGTKtd1SKUYwM1OrRZvuCsPcfO5gYJkq31mKrXGmNJcC PXbw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701094422; x=1701699222; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=RX3zgR/k3naH0cxTUjVNfFsJEx/hUFvxNDBlPipUY+c=; b=o2dUqRT4UrwmjtndKz6/I1adipwqCjYOYrtFlj1tqV7JKKp7ug7+vcMw7SJdyjJX2O aeZludETxUyyxwrjUN7zz2IE/RJEMiJcP2vEvqhdp0j3/ij7ka7V4e6Fb6w8SW/GGoUk WY8J0U8eMCWhb20uJdPGAj+MrgolAEzwxsl2y14GJxXLD7RayOzj0LjWJwKiH1xVVRxd jDbvYhJYXh1QcJOr+iIQjx3CpT3XZUQppB5O5D8ZHasDNIALrZs149bqW9F1qa5gxqdI H9uGrQ66cpPrRbkXLWZMTS46h/O2iOiWVHpjtVRNAtVF3CE129OZVtO7tlSguMecneYC 6bGA== X-Gm-Message-State: AOJu0Yw1f4nujqcOk4w1x7k0DhHJwU6ZavPBmPiug6P8nG6i00yWcvgv 76PI8gMeAJywdxTgWuje30lpLC8ZzD95cg== X-Google-Smtp-Source: AGHT+IHgVb25jgNQ0m8/UNTAYkEhO51GThc7+/wtvJ6LjS77N58SkOQgkPS2ZRVjLDZYE1IfqMqnhw== X-Received: by 2002:a05:6512:3c87:b0:50b:a64d:acf with SMTP id h7-20020a0565123c8700b0050ba64d0acfmr8699499lfv.59.1701094421004; Mon, 27 Nov 2023 06:13:41 -0800 (PST) From: Oleksii Kurochko To: xen-devel@lists.xenproject.org Cc: Oleksii Kurochko , Stefano Stabellini , Julien Grall , Bertrand Marquis , Michal Orzel , Volodymyr Babchuk , Andrew Cooper , George Dunlap , Jan Beulich , Wei Liu , Shawn Anastasio , =?utf-8?q?Roger_Pau_Monn=C3=A9?= Subject: [PATCH v4 08/14] xen/asm-generic: introduce generic div64.h header Date: Mon, 27 Nov 2023 16:13:21 +0200 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: MIME-Version: 1.0 All archs have the do_div implementation for BITS_PER_LONG == 64 so do_div64.h is moved to asm-generic. x86 and PPC were switched to asm-generic version of div64.h. Signed-off-by: Oleksii Kurochko Acked-by: Jan Beulich Acked-by: Shawn Anastasio --- Changes in V4: - Added Acked-by: Jan Beulich . - include in Arm's div64.h for 64-bit case. --- Changes in V3: - Drop x86 and PPC's div64.h. - Update the commit message. --- Changes in V2: - rename base to divisor - add "#if BITS_PER_LONG == 64" - fix code style --- xen/arch/arm/include/asm/div64.h | 8 +------- xen/arch/ppc/include/asm/Makefile | 1 + xen/arch/ppc/include/asm/div64.h | 14 -------------- xen/arch/x86/include/asm/Makefile | 1 + xen/arch/x86/include/asm/div64.h | 14 -------------- xen/include/asm-generic/div64.h | 27 +++++++++++++++++++++++++++ 6 files changed, 30 insertions(+), 35 deletions(-) delete mode 100644 xen/arch/ppc/include/asm/div64.h delete mode 100644 xen/arch/x86/include/asm/div64.h create mode 100644 xen/include/asm-generic/div64.h diff --git a/xen/arch/arm/include/asm/div64.h b/xen/arch/arm/include/asm/div64.h index fc667a80f9..0459d5cc01 100644 --- a/xen/arch/arm/include/asm/div64.h +++ b/xen/arch/arm/include/asm/div64.h @@ -24,13 +24,7 @@ #if BITS_PER_LONG == 64 -# define do_div(n,base) ({ \ - uint32_t __base = (base); \ - uint32_t __rem; \ - __rem = ((uint64_t)(n)) % __base; \ - (n) = ((uint64_t)(n)) / __base; \ - __rem; \ - }) +#include #elif BITS_PER_LONG == 32 diff --git a/xen/arch/ppc/include/asm/Makefile b/xen/arch/ppc/include/asm/Makefile index 3241236c64..5364bb1d59 100644 --- a/xen/arch/ppc/include/asm/Makefile +++ b/xen/arch/ppc/include/asm/Makefile @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0-only generic-y += device.h +generic-y += div64.h generic-y += hardirq.h generic-y += hypercall.h generic-y += iocap.h diff --git a/xen/arch/ppc/include/asm/div64.h b/xen/arch/ppc/include/asm/div64.h deleted file mode 100644 index d213e50585..0000000000 --- a/xen/arch/ppc/include/asm/div64.h +++ /dev/null @@ -1,14 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -#ifndef __ASM_PPC_DIV64_H__ -#define __ASM_PPC_DIV64_H__ - -#include - -#define do_div(n, base) ({ \ - uint32_t base_ = (base); \ - uint32_t rem_ = (uint64_t)(n) % base_; \ - (n) = (uint64_t)(n) / base_; \ - rem_; \ -}) - -#endif /* __ASM_PPC_DIV64_H__ */ diff --git a/xen/arch/x86/include/asm/Makefile b/xen/arch/x86/include/asm/Makefile index 874429ed30..daab34ff0a 100644 --- a/xen/arch/x86/include/asm/Makefile +++ b/xen/arch/x86/include/asm/Makefile @@ -1,2 +1,3 @@ # SPDX-License-Identifier: GPL-2.0-only +generic-y += div64.h generic-y += percpu.h diff --git a/xen/arch/x86/include/asm/div64.h b/xen/arch/x86/include/asm/div64.h deleted file mode 100644 index dd49f64a3b..0000000000 --- a/xen/arch/x86/include/asm/div64.h +++ /dev/null @@ -1,14 +0,0 @@ -#ifndef __X86_DIV64 -#define __X86_DIV64 - -#include - -#define do_div(n,base) ({ \ - uint32_t __base = (base); \ - uint32_t __rem; \ - __rem = ((uint64_t)(n)) % __base; \ - (n) = ((uint64_t)(n)) / __base; \ - __rem; \ -}) - -#endif diff --git a/xen/include/asm-generic/div64.h b/xen/include/asm-generic/div64.h new file mode 100644 index 0000000000..068d8a11ad --- /dev/null +++ b/xen/include/asm-generic/div64.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef __ASM_GENERIC_DIV64 +#define __ASM_GENERIC_DIV64 + +#include + +#if BITS_PER_LONG == 64 + +#define do_div(n, divisor) ({ \ + uint32_t divisor_ = (divisor); \ + uint32_t rem_ = (uint64_t)(n) % divisor_; \ + (n) = (uint64_t)(n) / divisor_; \ + rem_; \ +}) + +#endif /* BITS_PER_LONG */ + +#endif + +/* + * Local variables: + * mode: C + * c-file-style: "BSD" + * c-basic-offset: 4 + * indent-tabs-mode: nil + * End: + */