/** * \file drm_os_linux.h * OS abstraction macros. */ #include /* For task queue support */ #include #ifndef readq static inline u64 readq(void __iomem *reg) { return ((u64) readl(reg)) | (((u64) readl(reg + 4UL)) << 32); } static inline void writeq(u64 val, void __iomem *reg) { writel(val & 0xffffffff, reg); writel(val >> 32, reg + 0x4UL); } #endif /** Current process ID */ #define DRM_CURRENTPID task_pid_nr(current) #define DRM_UDELAY(d) udelay(d) /** Read a byte from a MMIO region */ #define DRM_READ8(map, offset) readb(((void __iomem *)(map)->handle) + (offset)) /** Read a word from a MMIO region */ #define DRM_READ16(map, offset) readw(((void __iomem *)(map)->handle) + (offset)) /** Read a dword from a MMIO region */ #define DRM_READ32(map, offset) readl(((void __iomem *)(map)->handle) + (offset)) /** Write a byte into a MMIO region */ #define DRM_WRITE8(map, offset, val) writeb(val, ((void __iomem *)(map)->handle) + (offset)) /** Write a word into a MMIO region */ #define DRM_WRITE16(map, offset, val) writew(val, ((void __iomem *)(map)->handle) + (offset)) /** Write a dword into a MMIO region */ #define DRM_WRITE32(map, offset, val) writel(val, ((void __iomem *)(map)->handle) + (offset)) /** Read a qword from a MMIO region - be careful using these unless you really understand them */ #define DRM_READ64(map, offset) readq(((void __iomem *)(map)->handle) + (offset)) /** Write a qword into a MMIO region */ #define DRM_WRITE64(map, offset, val) writeq(val, ((void __iomem *)(map)->handle) + (offset)) #define DRM_WAIT_ON( ret, queue, timeout, condition ) \ do { \ DECLARE_WAITQUEUE(entry, current); \ unsigned long end = jiffies + (timeout); \ add_wait_queue(&(queue), &entry); \ \ for (;;) { \ __set_current_state(TASK_INTERRUPTIBLE); \ if (condition) \ break; \ if (time_after_eq(jiffies, end)) { \ ret = -EBUSY; \ break; \ } \ schedule_timeout((HZ/100 > 1) ? HZ/100 : 1); \ if (signal_pending(current)) { \ ret = -EINTR; \ break; \ } \ } \ __set_current_state(TASK_RUNNING); \ remove_wait_queue(&(queue), &entry); \ } while (0) 'id' value='2c5d9555d6d937966d79d4c6529a5f7b9206e405'/>
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-29 10:56:56 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-29 10:56:56 -0800
commit2c5d9555d6d937966d79d4c6529a5f7b9206e405 (patch)
tree4f3d220ea3aeaadcae0796c5456e0ef9a908071d /net/ipv6
parent53cd1ad1a68fd10f677445e04ed63aa9ce39b36b (diff)
parent2ad5d52d42810bed95100a3d912679d8864421ec (diff)
Merge branch 'parisc-4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull two parisc fixes from Helge Deller: "One fix to avoid usage of BITS_PER_LONG in user-space exported swab.h header which breaks compiling qemu, and one trivial fix for printk continuation in the parisc parport driver" * 'parisc-4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Don't use BITS_PER_LONG in userspace-exported swab.h header parisc, parport_gsc: Fixes for printk continuation lines
Diffstat (limited to 'net/ipv6')