#ifndef _SPARC_IOCTL_H #define _SPARC_IOCTL_H /* * Our DIR and SIZE overlap in order to simulteneously provide * a non-zero _IOC_NONE (for binary compatibility) and * 14 bits of size as on i386. Here's the layout: * * 0xE0000000 DIR * 0x80000000 DIR = WRITE * 0x40000000 DIR = READ * 0x20000000 DIR = NONE * 0x3FFF0000 SIZE (overlaps NONE bit) * 0x0000FF00 TYPE * 0x000000FF NR (CMD) */ #define _IOC_NRBITS 8 #define _IOC_TYPEBITS 8 #define _IOC_SIZEBITS 13 /* Actually 14, see below. */ #define _IOC_DIRBITS 3 #define _IOC_NRMASK ((1 << _IOC_NRBITS)-1) #define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS)-1) #define _IOC_SIZEMASK ((1 << _IOC_SIZEBITS)-1) #define _IOC_XSIZEMASK ((1 << (_IOC_SIZEBITS+1))-1) #define _IOC_DIRMASK ((1 << _IOC_DIRBITS)-1) #define _IOC_NRSHIFT 0 #define _IOC_TYPESHIFT (_IOC_NRSHIFT + _IOC_NRBITS) #define _IOC_SIZESHIFT (_IOC_TYPESHIFT + _IOC_TYPEBITS) #define _IOC_DIRSHIFT (_IOC_SIZESHIFT + _IOC_SIZEBITS) #define _IOC_NONE 1U #define _IOC_READ 2U #define _IOC_WRITE 4U #define _IOC(dir,type,nr,size) \ (((dir) << _IOC_DIRSHIFT) | \ ((type) << _IOC_TYPESHIFT) | \ ((nr) << _IOC_NRSHIFT) | \ ((size) << _IOC_SIZESHIFT)) #define _IO(type,nr) _IOC(_IOC_NONE,(type),(nr),0) #define _IOR(type,nr,size) _IOC(_IOC_READ,(type),(nr),sizeof(size)) #define _IOW(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),sizeof(size)) #define _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size)) /* Used to decode ioctl numbers in drivers despite the leading underscore... */ #define _IOC_DIR(nr) \ ( (((((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) & (_IOC_WRITE|_IOC_READ)) != 0)? \ (((nr) >> _IOC_DIRSHIFT) & (_IOC_WRITE|_IOC_READ)): \ (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) ) #define _IOC_TYPE(nr) (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK) #define _IOC_NR(nr) (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK) #define _IOC_SIZE(nr) \ ((((((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) & (_IOC_WRITE|_IOC_READ)) == 0)? \ 0: (((nr) >> _IOC_SIZESHIFT) & _IOC_XSIZEMASK)) /* ...and for the PCMCIA and sound. */ #define IOC_IN (_IOC_WRITE << _IOC_DIRSHIFT) #define IOC_OUT (_IOC_READ << _IOC_DIRSHIFT) #define IOC_INOUT ((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT) #define IOCSIZE_MASK (_IOC_XSIZEMASK << _IOC_SIZESHIFT) #define IOCSIZE_SHIFT (_IOC_SIZESHIFT) #endif /* !(_SPARC_IOCTL_H) */ qt'>
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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-23 16:54:46 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-23 16:54:46 -0800
commit6ac3bb167fed0b3d02b4fd3daa0d819841d5f6f4 (patch)
tree49f73d917f1cd7d848e9a48c9efffea8ab2f7142 /Documentation
parenteb3e8d9de28a5385f75e5c42eba5fb5b0c7625be (diff)
parentc280f7736ab26a601932b1ce017a3840dbedcfdc (diff)
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar: "There's a number of fixes: - a round of fixes for CPUID-less legacy CPUs - a number of microcode loader fixes - i8042 detection robustization fixes - stack dump/unwinder fixes - x86 SoC platform driver fixes - a GCC 7 warning fix - virtualization related fixes" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits) Revert "x86/unwind: Detect bad stack return address" x86/paravirt: Mark unused patch_default label x86/microcode/AMD: Reload proper initrd start address x86/platform/intel/quark: Add printf attribute to imr_self_test_result() x86/platform/intel-mid: Switch MPU3050 driver to IIO x86/alternatives: Do not use sync_core() to serialize I$ x86/topology: Document cpu_llc_id x86/hyperv: Handle unknown NMIs on one CPU when unknown_nmi_panic x86/asm: Rewrite sync_core() to use IRET-to-self x86/microcode/intel: Replace sync_core() with native_cpuid() Revert "x86/boot: Fail the boot if !M486 and CPUID is missing" x86/asm/32: Make sync_core() handle missing CPUID on all 32-bit kernels x86/cpu: Probe CPUID leaf 6 even when cpuid_level == 6 x86/tools: Fix gcc-7 warning in relocs.c x86/unwind: Dump stack data on warnings x86/unwind: Adjust last frame check for aligned function stacks x86/init: Fix a couple of comment typos x86/init: Remove i8042_detect() from platform ops Input: i8042 - Trust firmware a bit more when probing on X86 x86/init: Add i8042 state to the platform data ...
Diffstat (limited to 'Documentation')