* OS abstraction macros.
*/
-#define __NO_VERSION__
-
#include <linux/interrupt.h> /* For task queue support */
#include <linux/delay.h>
-/** File pointer type */
-#define DRMFILE struct file *
-/** Ioctl arguments */
-#define DRM_IOCTL_ARGS struct inode *inode, struct file *filp, unsigned int cmd, unsigned long data
-#define DRM_ERR(d) -(d)
/** 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(((unsigned long)(map)->handle) + (offset))
+#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(((unsigned long)(map)->handle) + (offset))
+#define DRM_READ32(map, offset) readl((map)->handle + (offset))
/** Write a byte into a MMIO region */
-#define DRM_WRITE8(map, offset, val) writeb(val, ((unsigned long)(map)->handle) + (offset))
+#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, ((unsigned long)(map)->handle) + (offset))
+#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()
-/** DRM device local declaration */
-#define DRM_DEVICE drm_file_t *priv = filp->private_data; \
- drm_device_t *dev = priv->dev
-
-/** IRQ handler arguments and return type and values */
-#define DRM_IRQ_ARGS int irq, void *arg, struct pt_regs *regs
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,69)
-#define DRM_IRQ_RET void
-#define DRM_IRQ_NONE
-#define DRM_IRQ_HANDLED
-#else
-#define DRM_IRQ_RET irqreturn_t
-#define DRM_IRQ_NONE IRQ_NONE
-#define DRM_IRQ_HANDLED IRQ_HANDLED
+/** 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 LINUX_VERSION_CODE < KERNEL_VERSION(2,5,70)
-#define DRM_AGP_MEM agp_memory
-#define DRM_AGP_KERN agp_kern_info
-#else
+#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
-/** Task queue handler arguments */
-#define DRM_TASKQUEUE_ARGS void *arg
+#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
-/** For data going into the kernel through the ioctl argument */
-#define DRM_COPY_FROM_USER_IOCTL(arg1, arg2, arg3) \
- if ( copy_from_user(&arg1, arg2, arg3) ) \
- return -EFAULT
-/** For data going from the kernel through the ioctl argument */
-#define DRM_COPY_TO_USER_IOCTL(arg1, arg2, arg3) \
- if ( copy_to_user(arg1, &arg2, arg3) ) \
- return -EFAULT
/** Other copying of data to kernel space */
#define DRM_COPY_FROM_USER(arg1, arg2, arg3) \
copy_from_user(arg1, arg2, arg3)
#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 ) \
- verify_area( VERIFY_READ, uaddr, size )
-#define DRM_COPY_FROM_USER_UNCHECKED(arg1, arg2, arg3) \
+#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)
-
-/** 'malloc' without the overhead of DRM(alloc)() */
-#define DRM_MALLOC(x) kmalloc(x, GFP_KERNEL)
-/** 'free' without the overhead of DRM(free)() */
-#define DRM_FREE(x,size) kfree(x)
-
-/**
- * Get the pointer to the SAREA.
- *
- * Searches the SAREA on the mapping lists and points drm_device::sarea to it.
- */
-#define DRM_GETSAREA() \
-do { \
- drm_map_list_t *entry; \
- list_for_each_entry( entry, &dev->maplist->head, head ) { \
- if ( entry->map && \
- entry->map->type == _DRM_SHM && \
- (entry->map->flags & _DRM_CONTAINS_LOCK) ) { \
- dev_priv->sarea = entry->map; \
- break; \
- } \
- } \
-} while (0)
-
#define DRM_HZ HZ
#define DRM_WAIT_ON( ret, queue, timeout, condition ) \
add_wait_queue(&(queue), &entry); \
\
for (;;) { \
- current->state = TASK_INTERRUPTIBLE; \
+ __set_current_state(TASK_INTERRUPTIBLE); \
if (condition) \
break; \
if (time_after_eq(jiffies, end)) { \
break; \
} \
} \
- current->state = TASK_RUNNING; \
+ __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)
projects / platform / upstream / libdrm.git / blobdiff