From patchwork Fri Nov 10 16:30:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Oleksii K." 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([94.75.70.14]) by smtp.gmail.com with ESMTPSA id lv19-20020a170906bc9300b009a9fbeb15f5sm4128966ejb.46.2023.11.10.08.30.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Nov 2023 08:30:58 -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: 882496b5-7fe6-11ee-9b0e-b553b5be7939 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1699633859; x=1700238659; 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=+Ksyz7eqpUnGFNwlEVCF+IR1olruWlEWE2GXgTvK14s=; b=nLiI6WDqXftlmzwP4+SWZQ+zmht/TrfU4ViNJYOCawtjxiu5pLGSOUybntT6SdgJYb uxQIJbDRpUTboOy++Zi/sIT00lVriMf/0VxiivUAC+5bzIjfS1lerkq+TMfQROw0O7Z1 Kzzl8sHXj+xgG5WMW7Ylso52DDbFSCb/GgKIJbliksdfwtax4mgZRgkAlZstaTg5SORU zNcBKDM/Uf29PkL/D7tkBcmyjsYoUmgiWuZqCI71Q6PhLofF3GR9wq9QCF1H/qSaA+IE QNedFx1K0S8e7EKoSuvEHozTDddRcy38ixOzuGhymdj79t3rS+jJW2NG8wdfSTqrXEwK 8+Ww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699633859; x=1700238659; 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=+Ksyz7eqpUnGFNwlEVCF+IR1olruWlEWE2GXgTvK14s=; b=Nc6NRlFrLqqG9Rrqa34q8/vZctjRkm9D+3nBueWLSev8xqQC4eSYDBvqBLFY8aQ298 3OYHIoA1X8+5Gm87zg5VSZKmRuH0mZtprfCzLnrt14nBjO7phOsntIZsYh4QjWQzn54p ZZF4j84f/UpeqvWs6QihfabpTy6mcIvfkvM3ims434AVjSXsce/1t1FIVGbdYLWWsaAu DTk0hbGURu/tqHyp7CeHFLuk+7rkYINgDQP4IfrHcuqRrRqqWu39MFKmrM4+ftJZUFjS oeD5YI+20y4qfHB4DEFzO0eLrcNqPJlBm4mtqEO3rjAr3wZd+UdXNcRKM6CU6itWeFeV jPdw== X-Gm-Message-State: AOJu0YzItj0gPI/9for+JHR6m5v6pOCvP4xcD4RJB+d2YA+ZM5ieDZ03 X/5LKXTd4/uCGByWdLdgrPz+J0Rxxj4= X-Google-Smtp-Source: AGHT+IE6kPiXX7Z5JSop3+dJNokyJWJRZdMX1Asa8K1PXdW65cBGfCL9mpOdjoesLyxVw2MLuNP78A== X-Received: by 2002:a17:907:948d:b0:9a5:a0c6:9e8e with SMTP id dm13-20020a170907948d00b009a5a0c69e8emr7208470ejc.31.1699633859199; Fri, 10 Nov 2023 08:30:59 -0800 (PST) From: Oleksii Kurochko To: xen-devel@lists.xenproject.org Cc: Oleksii Kurochko , Andrew Cooper , George Dunlap , Jan Beulich , Julien Grall , Stefano Stabellini , Wei Liu Subject: [PATCH v2 08/15] xen/asm-generic: introduce generic header percpu.h Date: Fri, 10 Nov 2023 18:30:34 +0200 Message-ID: X-Mailer: git-send-email 2.41.0 In-Reply-To: References: MIME-Version: 1.0 Signed-off-by: Oleksii Kurochko --- Changes in V2: - use smp_processor_id() instead of get_processor_id(). - update commit message . --- xen/include/asm-generic/percpu.h | 35 ++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 xen/include/asm-generic/percpu.h diff --git a/xen/include/asm-generic/percpu.h b/xen/include/asm-generic/percpu.h new file mode 100644 index 0000000000..85a3f3ef17 --- /dev/null +++ b/xen/include/asm-generic/percpu.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef __ASM_GENERIC_PERCPU_H__ +#define __ASM_GENERIC_PERCPU_H__ + +#ifndef __ASSEMBLY__ + +#include + +extern char __per_cpu_start[], __per_cpu_data_end[]; +extern unsigned long __per_cpu_offset[NR_CPUS]; +void percpu_init_areas(void); + +#define per_cpu(var, cpu) \ + (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset[cpu])) + +#define this_cpu(var) \ + (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset[smp_processor_id()])) + +#define per_cpu_ptr(var, cpu) \ + (*RELOC_HIDE(var, __per_cpu_offset[cpu])) +#define this_cpu_ptr(var) \ + (*RELOC_HIDE(var, smp_processor_id())) + +#endif + +#endif /* __ASM_GENERIC_PERCPU_H__ */ + +/* + * Local variables: + * mode: C + * c-file-style: "BSD" + * c-basic-offset: 4 + * indent-tabs-mode: nil + * End: + */