From mboxrd@z Thu Jan 1 00:00:00 1970 From: Corentin Labbe Subject: [PATCH 2/5] include: add setbits32/clrbits32/clrsetbits32/setbits64/clrbits64/clrsetbits64 in linux/setbits.h Date: Fri, 7 Sep 2018 19:41:44 +0000 Message-ID: <1536349307-20714-3-git-send-email-clabbe@baylibre.com> References: <1536349307-20714-1-git-send-email-clabbe@baylibre.com> Cc: cocci@systeme.lip6.fr, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, netdev@vger.kernel.org, linux-sunxi@googlegroups.com, Corentin Labbe To: Gilles.Muller@lip6.fr, Julia.Lawall@lip6.fr, agust@denx.de, alexandre.torgue@st.com, alistair@popple.id.au, benh@kernel.crashing.org, carlo@caione.org, davem@davemloft.net, galak@kernel.crashing.org, joabreu@synopsys.com, khilman@baylibre.com, maxime.ripard@bootlin.com, michal.lkml@markovi.net, mpe@ellerman.id.au, mporter@kernel.crashing.org, nicolas.palix@imag.fr, oss@buserror.net, paulus@samba.org, peppe.cavallaro@st.com, tj@kernel.org, vitb@kernel.crashing.org, wens@csie.org Return-path: Received: from mail-wm0-f67.google.com ([74.125.82.67]:35613 "EHLO mail-wm0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726197AbeIHAYs (ORCPT ); Fri, 7 Sep 2018 20:24:48 -0400 Received: by mail-wm0-f67.google.com with SMTP id o18-v6so15723079wmc.0 for ; Fri, 07 Sep 2018 12:42:21 -0700 (PDT) In-Reply-To: <1536349307-20714-1-git-send-email-clabbe@baylibre.com> Sender: netdev-owner@vger.kernel.org List-ID: This patch adds setbits32/clrbits32/clrsetbits32 and setbits64/clrbits64/clrsetbits64 in linux/setbits.h header. Signed-off-by: Corentin Labbe --- include/linux/setbits.h | 55 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 include/linux/setbits.h diff --git a/include/linux/setbits.h b/include/linux/setbits.h new file mode 100644 index 000000000000..3e1e273551bb --- /dev/null +++ b/include/linux/setbits.h @@ -0,0 +1,55 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __LINUX_SETBITS_H +#define __LINUX_SETBITS_H + +#include + +#define __setbits(readfunction, writefunction, addr, set) \ + writefunction((readfunction(addr) | (set)), addr) +#define __clrbits(readfunction, writefunction, addr, mask) \ + writefunction((readfunction(addr) & ~(mask)), addr) +#define __clrsetbits(readfunction, writefunction, addr, mask, set) \ + writefunction(((readfunction(addr) & ~(mask)) | (set)), addr) +#define __setclrbits(readfunction, writefunction, addr, mask, set) \ + writefunction(((readfunction(addr) | (seti)) & ~(mask)), addr) + +#define setbits32(addr, set) __setbits(readl, writel, addr, set) +#define setbits32_relaxed(addr, set) __setbits(readl_relaxed, writel_relaxed, \ + addr, set) + +#define clrbits32(addr, mask) __clrbits(readl, writel, addr, mask) +#define clrbits32_relaxed(addr, mask) __clrbits(readl_relaxed, writel_relaxed, \ + addr, mask) + +#define clrsetbits32(addr, mask, set) __clrsetbits(readl, writel, addr, mask, set) +#define clrsetbits32_relaxed(addr, mask, set) __clrsetbits(readl_relaxed, \ + writel_relaxed, \ + addr, mask, set) + +#define setclrbits32(addr, mask, set) __setclrbits(readl, writel, addr, mask, set) +#define setclrbits32_relaxed(addr, mask, set) __setclrbits(readl_relaxed, \ + writel_relaxed, \ + addr, mask, set) + +/* We cannot use CONFIG_64BIT as some x86 drivers use writeq */ +#if defined(writeq) && defined(readq) +#define setbits64(addr, set) __setbits(readq, writeq, addr, set) +#define setbits64_relaxed(addr, set) __setbits(readq_relaxed, writeq_relaxed, \ + addr, set) + +#define clrbits64(addr, mask) __clrbits(readq, writeq, addr, mask) +#define clrbits64_relaxed(addr, mask) __clrbits(readq_relaxed, writeq_relaxed, \ + addr, mask) + +#define clrsetbits64(addr, mask, set) __clrsetbits(readq, writeq, addr, mask, set) +#define clrsetbits64_relaxed(addr, mask, set) __clrsetbits(readq_relaxed, \ + writeq_relaxed, \ + addr, mask, set) + +#define setclrbits64(addr, mask, set) __setclrbits(readq, writeq, addr, mask, set) +#define setclrbits64_relaxed(addr, mask, set) __setclrbits(readq_relaxed, \ + writeq_relaxed, \ + addr, mask, set) +#endif /* writeq/readq */ + +#endif /* __LINUX_SETBITS_H */ -- 2.16.4