From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 889BBC433EF for ; Mon, 15 Nov 2021 16:55:41 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 3F9A861B72 for ; Mon, 15 Nov 2021 16:55:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 3F9A861B72 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id E7AD64B1C1; Mon, 15 Nov 2021 11:55:40 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id v8Kysc020j-O; Mon, 15 Nov 2021 11:55:39 -0500 (EST) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 890FA4B1FC; Mon, 15 Nov 2021 11:55:39 -0500 (EST) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 744CF4B150 for ; Mon, 15 Nov 2021 11:55:38 -0500 (EST) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id LURRSTt7F+s5 for ; Mon, 15 Nov 2021 11:55:36 -0500 (EST) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 576AE4B1D4 for ; Mon, 15 Nov 2021 11:55:36 -0500 (EST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 115041FB; Mon, 15 Nov 2021 08:55:36 -0800 (PST) Received: from monolith.localdoman (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 92CF53F766; Mon, 15 Nov 2021 08:55:34 -0800 (PST) From: Alexandru Elisei To: will@kernel.org, julien.thierry.kdev@gmail.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, maz@kernel.org, james.morse@arm.com, suzuki.poulose@arm.com, mark.rutland@arm.com Subject: [PATCH kvmtool 6/9] util: Add basic cpumask functions Date: Mon, 15 Nov 2021 16:57:02 +0000 Message-Id: <20211115165705.195736-7-alexandru.elisei@arm.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211115165705.195736-1-alexandru.elisei@arm.com> References: <20211115165705.195736-1-alexandru.elisei@arm.com> MIME-Version: 1.0 X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu Add a handful of basic cpumask functions, some of which will be used when dealing with different PMUs on heterogeneous systems. Signed-off-by: Alexandru Elisei --- arm/aarch32/include/asm/kernel.h | 8 ++++++++ arm/aarch64/include/asm/kernel.h | 8 ++++++++ include/linux/bitmap.h | 20 +++++++++++++++++++ include/linux/cpumask.h | 33 ++++++++++++++++++++++++++++++++ include/linux/kernel.h | 2 ++ mips/include/asm/kernel.h | 8 ++++++++ powerpc/include/asm/kernel.h | 8 ++++++++ x86/include/asm/kernel.h | 8 ++++++++ 8 files changed, 95 insertions(+) create mode 100644 arm/aarch32/include/asm/kernel.h create mode 100644 arm/aarch64/include/asm/kernel.h create mode 100644 include/linux/bitmap.h create mode 100644 include/linux/cpumask.h create mode 100644 mips/include/asm/kernel.h create mode 100644 powerpc/include/asm/kernel.h create mode 100644 x86/include/asm/kernel.h diff --git a/arm/aarch32/include/asm/kernel.h b/arm/aarch32/include/asm/kernel.h new file mode 100644 index 000000000000..61296094deb1 --- /dev/null +++ b/arm/aarch32/include/asm/kernel.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ASM_KERNEL_H +#define __ASM_KERNEL_H + +#define NR_CPUS 32 + +#endif /* __ASM_KERNEL_H */ diff --git a/arm/aarch64/include/asm/kernel.h b/arm/aarch64/include/asm/kernel.h new file mode 100644 index 000000000000..4ab195fcb89d --- /dev/null +++ b/arm/aarch64/include/asm/kernel.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ASM_KERNEL_H +#define __ASM_KERNEL_H + +#define NR_CPUS 512 + +#endif /* __ASM_KERNEL_H */ diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h new file mode 100644 index 000000000000..33b24520a576 --- /dev/null +++ b/include/linux/bitmap.h @@ -0,0 +1,20 @@ +#ifndef KVM__BITMAP_H +#define KVM__BITMAP_H + +#include + +#include + +#define DECLARE_BITMAP(name,bits) \ + unsigned long name[BITS_TO_LONGS(bits)] + +#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1))) +#define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1))) + +static inline void bitmap_zero(unsigned long *dst, unsigned int nbits) +{ + unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long); + memset(dst, 0, len); +} + +#endif /* KVM__BITMAP_H */ diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h new file mode 100644 index 000000000000..36959885aeff --- /dev/null +++ b/include/linux/cpumask.h @@ -0,0 +1,33 @@ +#ifndef KVM__CPUMASK_H +#define KVM__CPUMASK_H + +#include + +#include +#include + +typedef struct cpumask { DECLARE_BITMAP(bits, NR_CPUS); } cpumask_t; + +#define cpumask_bits(maskp) ((maskp)->bits) + +static inline void cpumask_set_cpu(int cpu, cpumask_t *dstp) +{ + set_bit(cpu, cpumask_bits(dstp)); +} + +static inline void cpumask_clear_cpu(int cpu, cpumask_t *dstp) +{ + clear_bit(cpu, cpumask_bits(dstp)); +} + +static inline int cpumask_test_cpu(int cpu, const cpumask_t *cpumask) +{ + return test_bit(cpu, cpumask_bits((cpumask))); +} + +static inline void cpumask_clear(cpumask_t *dstp) +{ + bitmap_zero(cpumask_bits(dstp), NR_CPUS); +} + +#endif /* KVM__CPUMASK_H */ diff --git a/include/linux/kernel.h b/include/linux/kernel.h index f2bff5f12b61..f3240e09a321 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -2,6 +2,8 @@ #ifndef KVM__LINUX_KERNEL_H_ #define KVM__LINUX_KERNEL_H_ +#include + #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) #define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1) diff --git a/mips/include/asm/kernel.h b/mips/include/asm/kernel.h new file mode 100644 index 000000000000..cbceffd02acd --- /dev/null +++ b/mips/include/asm/kernel.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ASM_KERNEL_H +#define __ASM_KERNEL_H + +#define NR_CPUS 256 + +#endif /* __ASM_KERNEL_H */ diff --git a/powerpc/include/asm/kernel.h b/powerpc/include/asm/kernel.h new file mode 100644 index 000000000000..7b4fe88efd65 --- /dev/null +++ b/powerpc/include/asm/kernel.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ASM_KERNEL_H +#define __ASM_KERNEL_H + +#define NR_CPUS 2048 + +#endif /* __ASM_KERNEL_H */ diff --git a/x86/include/asm/kernel.h b/x86/include/asm/kernel.h new file mode 100644 index 000000000000..87fad2a0300a --- /dev/null +++ b/x86/include/asm/kernel.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _ASM_KERNEL_H +#define _ASM_KERNEL_H + +#define NR_CPUS 8196 + +#endif /* _ASM_KERNEL_H */ -- 2.31.1 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 623C9C433FE for ; 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Mon, 15 Nov 2021 08:55:34 -0800 (PST) From: Alexandru Elisei To: will@kernel.org, julien.thierry.kdev@gmail.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, maz@kernel.org, james.morse@arm.com, suzuki.poulose@arm.com, mark.rutland@arm.com Subject: [PATCH kvmtool 6/9] util: Add basic cpumask functions Date: Mon, 15 Nov 2021 16:57:02 +0000 Message-Id: <20211115165705.195736-7-alexandru.elisei@arm.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211115165705.195736-1-alexandru.elisei@arm.com> References: <20211115165705.195736-1-alexandru.elisei@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211115_085537_233191_39B1E795 X-CRM114-Status: GOOD ( 14.64 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add a handful of basic cpumask functions, some of which will be used when dealing with different PMUs on heterogeneous systems. Signed-off-by: Alexandru Elisei --- arm/aarch32/include/asm/kernel.h | 8 ++++++++ arm/aarch64/include/asm/kernel.h | 8 ++++++++ include/linux/bitmap.h | 20 +++++++++++++++++++ include/linux/cpumask.h | 33 ++++++++++++++++++++++++++++++++ include/linux/kernel.h | 2 ++ mips/include/asm/kernel.h | 8 ++++++++ powerpc/include/asm/kernel.h | 8 ++++++++ x86/include/asm/kernel.h | 8 ++++++++ 8 files changed, 95 insertions(+) create mode 100644 arm/aarch32/include/asm/kernel.h create mode 100644 arm/aarch64/include/asm/kernel.h create mode 100644 include/linux/bitmap.h create mode 100644 include/linux/cpumask.h create mode 100644 mips/include/asm/kernel.h create mode 100644 powerpc/include/asm/kernel.h create mode 100644 x86/include/asm/kernel.h diff --git a/arm/aarch32/include/asm/kernel.h b/arm/aarch32/include/asm/kernel.h new file mode 100644 index 000000000000..61296094deb1 --- /dev/null +++ b/arm/aarch32/include/asm/kernel.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ASM_KERNEL_H +#define __ASM_KERNEL_H + +#define NR_CPUS 32 + +#endif /* __ASM_KERNEL_H */ diff --git a/arm/aarch64/include/asm/kernel.h b/arm/aarch64/include/asm/kernel.h new file mode 100644 index 000000000000..4ab195fcb89d --- /dev/null +++ b/arm/aarch64/include/asm/kernel.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ASM_KERNEL_H +#define __ASM_KERNEL_H + +#define NR_CPUS 512 + +#endif /* __ASM_KERNEL_H */ diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h new file mode 100644 index 000000000000..33b24520a576 --- /dev/null +++ b/include/linux/bitmap.h @@ -0,0 +1,20 @@ +#ifndef KVM__BITMAP_H +#define KVM__BITMAP_H + +#include + +#include + +#define DECLARE_BITMAP(name,bits) \ + unsigned long name[BITS_TO_LONGS(bits)] + +#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) & (BITS_PER_LONG - 1))) +#define BITMAP_LAST_WORD_MASK(nbits) (~0UL >> (-(nbits) & (BITS_PER_LONG - 1))) + +static inline void bitmap_zero(unsigned long *dst, unsigned int nbits) +{ + unsigned int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long); + memset(dst, 0, len); +} + +#endif /* KVM__BITMAP_H */ diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h new file mode 100644 index 000000000000..36959885aeff --- /dev/null +++ b/include/linux/cpumask.h @@ -0,0 +1,33 @@ +#ifndef KVM__CPUMASK_H +#define KVM__CPUMASK_H + +#include + +#include +#include + +typedef struct cpumask { DECLARE_BITMAP(bits, NR_CPUS); } cpumask_t; + +#define cpumask_bits(maskp) ((maskp)->bits) + +static inline void cpumask_set_cpu(int cpu, cpumask_t *dstp) +{ + set_bit(cpu, cpumask_bits(dstp)); +} + +static inline void cpumask_clear_cpu(int cpu, cpumask_t *dstp) +{ + clear_bit(cpu, cpumask_bits(dstp)); +} + +static inline int cpumask_test_cpu(int cpu, const cpumask_t *cpumask) +{ + return test_bit(cpu, cpumask_bits((cpumask))); +} + +static inline void cpumask_clear(cpumask_t *dstp) +{ + bitmap_zero(cpumask_bits(dstp), NR_CPUS); +} + +#endif /* KVM__CPUMASK_H */ diff --git a/include/linux/kernel.h b/include/linux/kernel.h index f2bff5f12b61..f3240e09a321 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -2,6 +2,8 @@ #ifndef KVM__LINUX_KERNEL_H_ #define KVM__LINUX_KERNEL_H_ +#include + #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) #define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1) diff --git a/mips/include/asm/kernel.h b/mips/include/asm/kernel.h new file mode 100644 index 000000000000..cbceffd02acd --- /dev/null +++ b/mips/include/asm/kernel.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ASM_KERNEL_H +#define __ASM_KERNEL_H + +#define NR_CPUS 256 + +#endif /* __ASM_KERNEL_H */ diff --git a/powerpc/include/asm/kernel.h b/powerpc/include/asm/kernel.h new file mode 100644 index 000000000000..7b4fe88efd65 --- /dev/null +++ b/powerpc/include/asm/kernel.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ASM_KERNEL_H +#define __ASM_KERNEL_H + +#define NR_CPUS 2048 + +#endif /* __ASM_KERNEL_H */ diff --git a/x86/include/asm/kernel.h b/x86/include/asm/kernel.h new file mode 100644 index 000000000000..87fad2a0300a --- /dev/null +++ b/x86/include/asm/kernel.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _ASM_KERNEL_H +#define _ASM_KERNEL_H + +#define NR_CPUS 8196 + +#endif /* _ASM_KERNEL_H */ -- 2.31.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel