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 )
+