merge trunk to ppc-1-0-0-branchppc-1-0-0-20000912

1 files changed, 86 insertions, 8 deletions

diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index 128d6dd1..1b881dff 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -33,6 +33,12 @@
 #define _DRM_P_H_
 
 #ifdef __KERNEL__
+#ifdef __alpha__
+/* add include of current.h so that "current" is defined
+ * before static inline funcs in wait.h. Doing this so we
+ * can build the DRM (part of PI DRI). 4/21/2000 S + B */
+#include <asm/current.h>
+#endif /* __alpha__ */
 #include <linux/config.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
@@ -46,6 +52,7 @@
 #include <linux/version.h>
 #include <linux/sched.h>
 #include <linux/smp_lock.h>	/* For (un)lock_kernel */
+#include <linux/mm.h>
 #include <asm/io.h>
 #include <asm/mman.h>
 #include <asm/uaccess.h>
@@ -57,10 +64,13 @@
 #include <linux/types.h>
 #include <linux/agp_backend.h>
 #endif
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,1,0)
+#if LINUX_VERSION_CODE >= 0x020100 /* KERNEL_VERSION(2,1,0) */
 #include <linux/tqueue.h>
 #include <linux/poll.h>
 #endif
+#if LINUX_VERSION_CODE < 0x020400
+#include "compat-pre24.h"
+#endif
 #include "drm.h"
 
 #define DRM_DEBUG_CODE 2	  /* Include debugging code (if > 1, then
@@ -140,16 +150,75 @@ typedef struct wait_queue *wait_queue_head_t;
 #define module_exit(x)  void cleanup_module(void) { x(); }
 #endif
 
-				/* virt_to_page added in 2.4.0-test6 */
-#ifndef virt_to_page
-#define virt_to_page(kaddr) (mem_map + MAP_NR(kaddr))
-#endif
-
 				/* Generic cmpxchg added in 2.3.x */
 #ifndef __HAVE_ARCH_CMPXCHG
 				/* Include this here so that driver can be
                                    used with older kernels. */
-#if defined(__i386__)
+#if defined(__alpha__)
+static __inline__ unsigned long
+__cmpxchg_u32(volatile int *m, int old, int new)
+{
+	unsigned long prev, cmp;
+
+	__asm__ __volatile__(
+	"1:	ldl_l %0,%2\n"
+	"	cmpeq %0,%3,%1\n"
+	"	beq %1,2f\n"
+	"	mov %4,%1\n"
+	"	stl_c %1,%2\n"
+	"	beq %1,3f\n"
+	"2:	mb\n"
+	".subsection 2\n"
+	"3:	br 1b\n"
+	".previous"
+	: "=&r"(prev), "=&r"(cmp), "=m"(*m)
+	: "r"((long) old), "r"(new), "m"(*m));
+
+	return prev;
+}
+
+static __inline__ unsigned long
+__cmpxchg_u64(volatile long *m, unsigned long old, unsigned long new)
+{
+	unsigned long prev, cmp;
+
+	__asm__ __volatile__(
+	"1:	ldq_l %0,%2\n"
+	"	cmpeq %0,%3,%1\n"
+	"	beq %1,2f\n"
+	"	mov %4,%1\n"
+	"	stq_c %1,%2\n"
+	"	beq %1,3f\n"
+	"2:	mb\n"
+	".subsection 2\n"
+	"3:	br 1b\n"
+	".previous"
+	: "=&r"(prev), "=&r"(cmp), "=m"(*m)
+	: "r"((long) old), "r"(new), "m"(*m));
+
+	return prev;
+}
+
+static __inline__ unsigned long
+__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
+{
+	switch (size) {
+		case 4:
+			return __cmpxchg_u32(ptr, old, new);
+		case 8:
+			return __cmpxchg_u64(ptr, old, new);
+	}
+	return old;
+}
+#define cmpxchg(ptr,o,n)						 \
+  ({									 \
+     __typeof__(*(ptr)) _o_ = (o);					 \
+     __typeof__(*(ptr)) _n_ = (n);					 \
+     (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_,		 \
+				    (unsigned long)_n_, sizeof(*(ptr))); \
+  })
+
+#elif __i386__
 static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
 				      unsigned long new, int size)
 {
@@ -207,7 +276,7 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
 #define cmpxchg(ptr,o,n)						\
   ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),		\
 				 (unsigned long)(n),sizeof(*(ptr))))
-#endif
+#endif /* i386 & alpha */
 
 				/* Macros to make printk easier */
 #define DRM_ERROR(fmt, arg...) \
@@ -356,6 +425,7 @@ typedef struct drm_freelist {
 	int		  low_mark;    /* Low water mark		   */
 	int		  high_mark;   /* High water mark		   */
 	atomic_t	  wfh;	       /* If waiting for high mark	   */
+	spinlock_t        lock;
 } drm_freelist_t;
 
 typedef struct drm_buf_entry {
@@ -478,6 +548,11 @@ typedef struct {
 extern drm_agp_func_t drm_agp;
 #endif
 
+typedef struct drm_sigdata {
+	int           context;
+	drm_hw_lock_t *lock;
+} drm_sigdata_t;
+
 typedef struct drm_device {
 	const char	  *name;	/* Simple driver name		   */
 	char		  *unique;	/* Unique identifier: e.g., busid  */
@@ -562,6 +637,8 @@ typedef struct drm_device {
 #endif
 	unsigned long     *ctx_bitmap;
 	void		  *dev_private;
+	drm_sigdata_t     sigdata; /* For block_all_signals */
+	sigset_t          sigmask;
 } drm_device_t;
 
 
@@ -756,6 +833,7 @@ extern int	     drm_flush_unblock(drm_device_t *dev, int context,
 				       drm_lock_flags_t flags);
 extern int	     drm_flush_block_and_flush(drm_device_t *dev, int context,
 					       drm_lock_flags_t flags);
+extern int           drm_notifier(void *priv);
 
 				/* Context Bitmap support (ctxbitmap.c) */
 extern int	     drm_ctxbitmap_init(drm_device_t *dev);