This patch adds setbits32/clrbits32/clrsetbits32 and setbits64/clrbits64/clrsetbits64 in linux/setbits.h header. Signed-off-by: Corentin Labbe <clabbe@xxxxxxxxxxxx> --- 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 <linux/io.h> + +#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
