Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 149 insertions, 0 deletions

diff --git a/drivers/char/drm/drm_os_linux.h b/drivers/char/drm/drm_os_linux.h
new file mode 100644
index 000000000000..b14cd370dea5
--- /dev/null
+++ b/drivers/char/drm/drm_os_linux.h
@@ -0,0 +1,149 @@
+/**
+ * \file drm_os_linux.h
+ * OS abstraction macros.
+ */
+
+
+#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_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 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->head->dev
+
+/** IRQ handler arguments and return type and values */
+#define DRM_IRQ_ARGS		int irq, void *arg, struct pt_regs *regs
+
+/** 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
+
+/** Task queue handler arguments */
+#define DRM_TASKQUEUE_ARGS	void *arg
+
+/** 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)
+/** 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_GET_PRIV_WITH_RETURN(_priv, _filp) _priv = _filp->private_data
+
+/** 
+ * 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 )		\
+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 )
+