1 files changed, 17 insertions, 60 deletions

diff --git a/include/drm/drm_os_linux.h b/include/drm/drm_os_linux.h
index 8dbd2572b7c..86ab99bc0ac 100644
--- a/include/drm/drm_os_linux.h
+++ b/include/drm/drm_os_linux.h
@@ -6,9 +6,21 @@
 #include <linux/interrupt.h>	/* For task queue support */
 #include <linux/delay.h>
 
+#ifndef readq
+static inline u64 readq(void __iomem *reg)
+{
+	return ((u64) readl(reg)) | (((u64) readl(reg + 4UL)) << 32);
+}
+
+static inline void writeq(u64 val, void __iomem *reg)
+{
+	writel(val & 0xffffffff, reg);
+	writel(val >> 32, reg + 0x4UL);
+}
+#endif
+
 /** Current process ID */
 #define DRM_CURRENTPID			task_pid_nr(current)
-#define DRM_SUSER(p)			capable(CAP_SYS_ADMIN)
 #define DRM_UDELAY(d)			udelay(d)
 /** Read a byte from a MMIO region */
 #define DRM_READ8(map, offset)		readb(((void __iomem *)(map)->handle) + (offset))
@@ -22,63 +34,11 @@
 #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()
-
-/** IRQ handler arguments and return type and values */
-#define DRM_IRQ_ARGS		int irq, void *arg
 
-/** 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
+/** Read a qword from a MMIO region - be careful using these unless you really understand them */
+#define DRM_READ64(map, offset)		readq(((void __iomem *)(map)->handle) + (offset))
+/** Write a qword into a MMIO region */
+#define DRM_WRITE64(map, offset, val)	writeq(val, ((void __iomem *)(map)->handle) + (offset))
 
 #define DRM_WAIT_ON( ret, queue, timeout, condition )		\
 do {								\
@@ -103,6 +63,3 @@ do {								\
 	__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 )