Linux-2.6.12-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!
diff --git a/drivers/char/drm/drm_os_linux.h b/drivers/char/drm/drm_os_linux.h
new file mode 100644
index 0000000..b14cd37
--- /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 )
+