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Mon, 24 Sep 2018 12:04:28 -0700 (PDT) Received: from localhost.localdomain ([51.15.160.169]) by smtp.googlemail.com with ESMTPSA id e141-v6sm27721433wmd.32.2018.09.24.12.04.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 24 Sep 2018 12:04:28 -0700 (PDT) From: Corentin Labbe To: Gilles.Muller@lip6.fr, Julia.Lawall@lip6.fr, agust@denx.de, airlied@linux.ie, 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, narmstrong@baylibre.com, nicolas.palix@imag.fr, oss@buserror.net, paulus@samba.org, peppe.cavallaro@st.com, tj@kernel.org, vitb@kernel.crashing.org, wens@csie.org Subject: [PATCH v2 2/7] include: add setbits32/clrbits32/clrsetbits32/setbits64/clrbits64/clrsetbits64 in linux/setbits.h Date: Mon, 24 Sep 2018 19:04:11 +0000 Message-Id: <1537815856-31728-3-git-send-email-clabbe@baylibre.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1537815856-31728-1-git-send-email-clabbe@baylibre.com> References: <1537815856-31728-1-git-send-email-clabbe@baylibre.com> X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-ide@vger.kernel.org, Corentin Labbe , linux-amlogic@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, cocci@systeme.lip6.fr, linux-arm-kernel@lists.infradead.org Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" This patch adds setbits32/clrbits32/clrsetbits32 and setbits64/clrbits64/clrsetbits64 in linux/setbits.h header. Signed-off-by: Corentin Labbe --- include/linux/setbits.h | 88 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 88 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..6e7e257134ae --- /dev/null +++ b/include/linux/setbits.h @@ -0,0 +1,88 @@ +/* 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) | (set)) & ~(mask)), addr) + +#ifndef setbits_le32 +#define setbits_le32(addr, set) __setbits(readl, writel, addr, set) +#endif +#ifndef setbits_le32_relaxed +#define setbits_le32_relaxed(addr, set) __setbits(readl_relaxed, writel_relaxed, \ + addr, set) +#endif + +#ifndef clrbits_le32 +#define clrbits_le32(addr, mask) __clrbits(readl, writel, addr, mask) +#endif +#ifndef clrbits_le32_relaxed +#define clrbits_le32_relaxed(addr, mask) __clrbits(readl_relaxed, writel_relaxed, \ + addr, mask) +#endif + +#ifndef clrsetbits_le32 +#define clrsetbits_le32(addr, mask, set) __clrsetbits(readl, writel, addr, mask, set) +#endif +#ifndef clrsetbits_le32_relaxed +#define clrsetbits_le32_relaxed(addr, mask, set) __clrsetbits(readl_relaxed, \ + writel_relaxed, \ + addr, mask, set) +#endif + +#ifndef setclrbits_le32 +#define setclrbits_le32(addr, mask, set) __setclrbits(readl, writel, addr, mask, set) +#endif +#ifndef setclrbits_le32_relaxed +#define setclrbits_le32_relaxed(addr, mask, set) __setclrbits(readl_relaxed, \ + writel_relaxed, \ + addr, mask, set) +#endif + +/* We cannot use CONFIG_64BIT as some x86 drivers use non-atomicwriteq() */ +#if defined(writeq) && defined(readq) +#ifndef setbits_le64 +#define setbits_le64(addr, set) __setbits(readq, writeq, addr, set) +#endif +#ifndef setbits_le64_relaxed +#define setbits_le64_relaxed(addr, set) __setbits(readq_relaxed, writeq_relaxed, \ + addr, set) +#endif + +#ifndef clrbits_le64 +#define clrbits_le64(addr, mask) __clrbits(readq, writeq, addr, mask) +#endif +#ifndef clrbits_le64_relaxed +#define clrbits_le64_relaxed(addr, mask) __clrbits(readq_relaxed, writeq_relaxed, \ + addr, mask) +#endif + +#ifndef clrsetbits_le64 +#define clrsetbits_le64(addr, mask, set) __clrsetbits(readq, writeq, addr, mask, set) +#endif +#ifndef clrsetbits_le64_relaxed +#define clrsetbits_le64_relaxed(addr, mask, set) __clrsetbits(readq_relaxed, \ + writeq_relaxed, \ + addr, mask, set) +#endif + +#ifndef setclrbits_le64 +#define setclrbits_le64(addr, mask, set) __setclrbits(readq, writeq, addr, mask, set) +#endif +#ifndef setclrbits_le64_relaxed +#define setclrbits_le64_relaxed(addr, mask, set) __setclrbits(readq_relaxed, \ + writeq_relaxed, \ + addr, mask, set) +#endif + +#endif /* writeq/readq */ + +#endif /* __LINUX_SETBITS_H */