renesas/drm.git - libdrm, cloned from git://anongit.freedesktop.org/mesa/drm

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author	Patrice Mandin <pmandin@caramail.com>	2008-02-29 21:57:40 +0100
committer	Patrice Mandin <pmandin@caramail.com>	2008-02-29 21:57:40 +0100
commit	09999c90ab1bf3f7d8b277895c962c8a7b3afc18 (patch)
tree	95532b65695b840b213526de40bcfd959c258ae3 /libdrm/ChangeLog
parent	1d068973d5f5e6d8d14b4c0c6e28588107aafc6f (diff)

FIX_KMAP_BEGIN requires CONFIG_HIMEM (see include/asm-i386.h/fixmap.h)

Diffstat (limited to 'libdrm/ChangeLog')

0 files changed, 0 insertions, 0 deletions

/** * \file drm_os_linux.h * OS abstraction macros. */ #include <linux/interrupt.h> /* For task queue support */ #include <linux/delay.h> /** Current process ID */ #define DRM_CURRENTPID current->pid #define DRM_SUSER(p) capable(CAP_SYS_ADMIN) #define DRM_UDELAY(d) udelay(d) #if LINUX_VERSION_CODE <= 0x020608 /* KERNEL_VERSION(2,6,8) */ #ifndef __iomem #define __iomem #endif /** 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)) #else /** Read a byte from a MMIO region */ #define DRM_READ8(map, offset) readb((map)->handle + (offset)) /** Read a word from a MMIO region */ #define DRM_READ16(map, offset) readw((map)->handle + (offset)) /** Read a dword from a MMIO region */ #define DRM_READ32(map, offset) readl((map)->handle + (offset)) /** Write a byte into a MMIO region */ #define DRM_WRITE8(map, offset, val) writeb(val, (map)->handle + (offset)) /** Write a word into a MMIO region */ #define DRM_WRITE16(map, offset, val) writew(val, (map)->handle + (offset)) /** Write a dword into a MMIO region */ #define DRM_WRITE32(map, offset, val) writel(val, (map)->handle + (offset)) #endif /** Read memory barrier */ #define DRM_READMEMORYBARRIER() rmb() /** Write memory barrier */ #define DRM_WRITEMEMORYBARRIER() wmb() /** Read/write memory barrier */ #define DRM_MEMORYBARRIER() mb() /** IRQ handler arguments and return type and values */ #define DRM_IRQ_ARGS int irq, void *arg /** backwards compatibility with old irq return values */ #ifndef IRQ_HANDLED typedef void irqreturn_t; #define IRQ_HANDLED /* nothing */ #define IRQ_NONE /* nothing */ #endif /** AGP types */ #if __OS_HAS_AGP #define DRM_AGP_MEM struct agp_memory #define DRM_AGP_KERN struct agp_kern_info #else /* define some dummy types for non AGP supporting kernels */ struct no_agp_kern { unsigned long aper_base; unsigned long aper_size; }; #define DRM_AGP_MEM int #define DRM_AGP_KERN struct no_agp_kern #endif #if !(__OS_HAS_MTRR) static __inline__ int mtrr_add(unsigned long base, unsigned long size, unsigned int type, char increment) { return -ENODEV; } static __inline__ int mtrr_del(int reg, unsigned long base, unsigned long size) { return -ENODEV; } #define MTRR_TYPE_WRCOMB 1 #endif /** Other copying of data to kernel space */ #define DRM_COPY_FROM_USER(arg1, arg2, arg3) \ copy_from_user(arg1, arg2, arg3) /** Other copying of data from kernel space */ #define DRM_COPY_TO_USER(arg1, arg2, arg3) \ copy_to_user(arg1, arg2, arg3) /* Macros for copyfrom user, but checking readability only once */ #define DRM_VERIFYAREA_READ( uaddr, size ) \ (access_ok( VERIFY_READ, uaddr, size) ? 0 : -EFAULT) #define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \ __copy_from_user(arg1, arg2, arg3) #define DRM_COPY_TO_USER_UNCHECKED(arg1, arg2, arg3) \ __copy_to_user(arg1, arg2, arg3) #define DRM_GET_USER_UNCHECKED(val, uaddr) \ __get_user(val, uaddr) #define DRM_HZ HZ #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) #define DRM_WAKEUP( queue ) wake_up_interruptible( queue ) #define DRM_INIT_WAITQUEUE( queue ) init_waitqueue_head( queue ) /** Type for the OS's non-sleepable mutex lock */ #define DRM_SPINTYPE spinlock_t /** * Initialize the lock for use. name is an optional string describing the * lock */ #define DRM_SPININIT(l,name) spin_lock_init(l) #define DRM_SPINUNINIT(l) #define DRM_SPINLOCK(l) spin_lock(l) #define DRM_SPINUNLOCK(l) spin_unlock(l) #define DRM_SPINLOCK_IRQSAVE(l, _flags) spin_lock_irqsave(l, _flags); #define DRM_SPINUNLOCK_IRQRESTORE(l, _flags) spin_unlock_irqrestore(l, _flags); #define DRM_SPINLOCK_ASSERT(l) do {} while (0)


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