- Reintegrate PPC support from old pcigart branchati-pcigart-1-0-0-20010405-freeze

11 files changed, 123 insertions, 46 deletions

diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index 27475133..085d1cb8 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -53,7 +53,7 @@
 #include <linux/sched.h>
 #include <linux/smp_lock.h>	/* For (un)lock_kernel */
 #include <linux/mm.h>
-#ifdef __alpha__
+#if defined(__alpha__) || defined(__powerpc__)
 #include <asm/pgtable.h> /* For pte_wrprotect */
 #endif
 #include <asm/io.h>
@@ -287,12 +287,43 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
 	return old;
 }
 
+#elif defined(__powerpc__)
+extern void __cmpxchg_called_with_bad_pointer(void);
+static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
+                                      unsigned long new, int size)
+{
+	unsigned long prev;
+
+	switch (size) {
+	case 4:
+		__asm__ __volatile__(
+			"sync;"
+			"0:    lwarx %0,0,%1 ;"
+			"      cmpl 0,%0,%3;"
+			"      bne 1f;"
+			"      stwcx. %2,0,%1;"
+			"      bne- 0b;"
+			"1:    "
+			"sync;"
+			: "=&r"(prev)
+			: "r"(ptr), "r"(new), "r"(old)
+			: "cr0", "memory");
+		return prev;
+	}
+	__cmpxchg_called_with_bad_pointer();
+	return old;
+}
+
+#endif /* i386, powerpc & alpha */
+
+#ifndef __alpha__
 #define cmpxchg(ptr,o,n)						\
   ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),		\
 				 (unsigned long)(n),sizeof(*(ptr))))
-#endif /* i386 & alpha */
 #endif
 
+#endif /* !__HAVE_ARCH_CMPXCHG */
+
 				/* Macros to make printk easier */
 #define DRM_ERROR(fmt, arg...) \
 	printk(KERN_ERR "[" DRM_NAME ":" __FUNCTION__ "] *ERROR* " fmt , ##arg)
diff --git a/linux-core/drm_vm.c b/linux-core/drm_vm.c
index 26906aee..771c11bd 100644
--- a/linux-core/drm_vm.c
+++ b/linux-core/drm_vm.c
@@ -424,7 +424,10 @@ int DRM(mmap)(struct file *filp, struct vm_area_struct *vma)
 			}
 #elif defined(__ia64__)
 			if (map->type != _DRM_AGP)
-				vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+				vma->vm_page_prot =
+					pgprot_writecombine(vma->vm_page_prot);
+#elif defined(__powerpc__)
+			pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE | _PAGE_GUARDED;
 #endif
 			vma->vm_flags |= VM_IO;	/* not in core dump */
 		}
diff --git a/linux-core/r128_drv.c b/linux-core/r128_drv.c
index 7e736541..584cb29c 100644
--- a/linux-core/r128_drv.c
+++ b/linux-core/r128_drv.c
@@ -39,11 +39,11 @@
 
 #define DRIVER_NAME		"r128"
 #define DRIVER_DESC		"ATI Rage 128"
-#define DRIVER_DATE		"20010308"
+#define DRIVER_DATE		"20010405"
 
 #define DRIVER_MAJOR		2
 #define DRIVER_MINOR		1
-#define DRIVER_PATCHLEVEL	5
+#define DRIVER_PATCHLEVEL	6
 
 #define DRIVER_IOCTLS							    \
    [DRM_IOCTL_NR(DRM_IOCTL_DMA)]             = { r128_cce_buffers,  1, 0 }, \
diff --git a/linux-core/radeon_drv.c b/linux-core/radeon_drv.c
index 3791c5ec..59497aca 100644
--- a/linux-core/radeon_drv.c
+++ b/linux-core/radeon_drv.c
@@ -37,11 +37,11 @@
 
 #define DRIVER_NAME		"radeon"
 #define DRIVER_DESC		"ATI Radeon"
-#define DRIVER_DATE		"20010308"
+#define DRIVER_DATE		"20010405"
 
 #define DRIVER_MAJOR		1
 #define DRIVER_MINOR		0
-#define DRIVER_PATCHLEVEL	1
+#define DRIVER_PATCHLEVEL	2
 
 #define DRIVER_IOCTLS							     \
  [DRM_IOCTL_NR(DRM_IOCTL_DMA)]               = { radeon_cp_buffers,  1, 0 }, \
diff --git a/linux/drmP.h b/linux/drmP.h
index 27475133..085d1cb8 100644
--- a/linux/drmP.h
+++ b/linux/drmP.h
@@ -53,7 +53,7 @@
 #include <linux/sched.h>
 #include <linux/smp_lock.h>	/* For (un)lock_kernel */
 #include <linux/mm.h>
-#ifdef __alpha__
+#if defined(__alpha__) || defined(__powerpc__)
 #include <asm/pgtable.h> /* For pte_wrprotect */
 #endif
 #include <asm/io.h>
@@ -287,12 +287,43 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
 	return old;
 }
 
+#elif defined(__powerpc__)
+extern void __cmpxchg_called_with_bad_pointer(void);
+static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
+                                      unsigned long new, int size)
+{
+	unsigned long prev;
+
+	switch (size) {
+	case 4:
+		__asm__ __volatile__(
+			"sync;"
+			"0:    lwarx %0,0,%1 ;"
+			"      cmpl 0,%0,%3;"
+			"      bne 1f;"
+			"      stwcx. %2,0,%1;"
+			"      bne- 0b;"
+			"1:    "
+			"sync;"
+			: "=&r"(prev)
+			: "r"(ptr), "r"(new), "r"(old)
+			: "cr0", "memory");
+		return prev;
+	}
+	__cmpxchg_called_with_bad_pointer();
+	return old;
+}
+
+#endif /* i386, powerpc & alpha */
+
+#ifndef __alpha__
 #define cmpxchg(ptr,o,n)						\
   ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),		\
 				 (unsigned long)(n),sizeof(*(ptr))))
-#endif /* i386 & alpha */
 #endif
 
+#endif /* !__HAVE_ARCH_CMPXCHG */
+
 				/* Macros to make printk easier */
 #define DRM_ERROR(fmt, arg...) \
 	printk(KERN_ERR "[" DRM_NAME ":" __FUNCTION__ "] *ERROR* " fmt , ##arg)
diff --git a/linux/drm_vm.h b/linux/drm_vm.h
index 26906aee..771c11bd 100644
--- a/linux/drm_vm.h
+++ b/linux/drm_vm.h
@@ -424,7 +424,10 @@ int DRM(mmap)(struct file *filp, struct vm_area_struct *vma)
 			}
 #elif defined(__ia64__)
 			if (map->type != _DRM_AGP)
-				vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+				vma->vm_page_prot =
+					pgprot_writecombine(vma->vm_page_prot);
+#elif defined(__powerpc__)
+			pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE | _PAGE_GUARDED;
 #endif
 			vma->vm_flags |= VM_IO;	/* not in core dump */
 		}
diff --git a/linux/r128_cce.c b/linux/r128_cce.c
index da44a496..1ced05fe 100644
--- a/linux/r128_cce.c
+++ b/linux/r128_cce.c
@@ -210,7 +210,7 @@ int r128_do_cce_idle( drm_r128_private_t *dev_priv )
 	int i;
 
 	for ( i = 0 ; i < dev_priv->usec_timeout ; i++ ) {
-		if ( *dev_priv->ring.head == dev_priv->ring.tail ) {
+		if ( GET_RING_HEAD( &dev_priv->ring ) == dev_priv->ring.tail ) {
 			int pm4stat = R128_READ( R128_PM4_STAT );
 			if ( ( (pm4stat & R128_PM4_FIFOCNT_MASK) >=
 			       dev_priv->cce_fifo_size ) &&
@@ -251,7 +251,7 @@ static void r128_do_cce_reset( drm_r128_private_t *dev_priv )
 {
 	R128_WRITE( R128_PM4_BUFFER_DL_WPTR, 0 );
 	R128_WRITE( R128_PM4_BUFFER_DL_RPTR, 0 );
-	*dev_priv->ring.head = 0;
+	SET_RING_HEAD( &dev_priv->ring, 0 );
 	dev_priv->ring.tail = 0;
 }
 
@@ -332,7 +332,7 @@ static void r128_cce_init_ring_buffer( drm_device_t *dev )
 	R128_WRITE( R128_PM4_BUFFER_DL_RPTR, 0 );
 
 	/* DL_RPTR_ADDR is a physical address in AGP space. */
-	*dev_priv->ring.head = 0;
+	SET_RING_HEAD( &dev_priv->ring, 0 );
 
 	if ( !dev_priv->is_pci ) {
 		R128_WRITE( R128_PM4_BUFFER_DL_RPTR_ADDR,
diff --git a/linux/r128_drv.c b/linux/r128_drv.c
index 7e736541..584cb29c 100644
--- a/linux/r128_drv.c
+++ b/linux/r128_drv.c
@@ -39,11 +39,11 @@
 
 #define DRIVER_NAME		"r128"
 #define DRIVER_DESC		"ATI Rage 128"
-#define DRIVER_DATE		"20010308"
+#define DRIVER_DATE		"20010405"
 
 #define DRIVER_MAJOR		2
 #define DRIVER_MINOR		1
-#define DRIVER_PATCHLEVEL	5
+#define DRIVER_PATCHLEVEL	6
 
 #define DRIVER_IOCTLS							    \
    [DRM_IOCTL_NR(DRM_IOCTL_DMA)]             = { r128_cce_buffers,  1, 0 }, \
diff --git a/linux/r128_drv.h b/linux/r128_drv.h
index bf682998..fbc69229 100644
--- a/linux/r128_drv.h
+++ b/linux/r128_drv.h
@@ -28,11 +28,15 @@
  *    Rickard E. (Rik) Faith <faith@valinux.com>
  *    Kevin E. Martin <martin@valinux.com>
  *    Gareth Hughes <gareth@valinux.com>
+ *    Michel Dänzer <daenzerm@student.ethz.ch>
  */
 
 #ifndef __R128_DRV_H__
 #define __R128_DRV_H__
 
+#define GET_RING_HEAD( ring )		le32_to_cpu( *(ring)->head )
+#define SET_RING_HEAD( ring, val )	*(ring)->head = cpu_to_le32( val )
+
 typedef struct drm_r128_freelist {
    	unsigned int age;
    	drm_buf_t *buf;
@@ -136,7 +140,7 @@ extern int r128_wait_ring( drm_r128_private_t *dev_priv, int n );
 static inline void
 r128_update_ring_snapshot( drm_r128_ring_buffer_t *ring )
 {
-	ring->space = (*(volatile int *)ring->head - ring->tail) * sizeof(u32);
+	ring->space = (GET_RING_HEAD( ring ) - ring->tail) * sizeof(u32);
 	if ( ring->space <= 0 )
 		ring->space += ring->size;
 }
@@ -368,7 +372,7 @@ extern int r128_cce_indirect( struct inode *inode, struct file *filp,
 
 #define R128_LAST_FRAME_REG		R128_GUI_SCRATCH_REG0
 #define R128_LAST_DISPATCH_REG		R128_GUI_SCRATCH_REG1
-#define R128_MAX_VB_AGE			0xffffffff
+#define R128_MAX_VB_AGE			0x7fffffff
 #define R128_MAX_VB_VERTS		(0xffff)
 
 #define R128_RING_HIGH_MARK		128
@@ -389,8 +393,8 @@ static inline u32 _R128_READ(u32 *addr) {
 #define R128_WRITE(reg,val)	\
 	do { wmb(); R128_DEREF(reg) = val; } while (0)
 #else
-#define R128_READ(reg)		R128_DEREF( reg )
-#define R128_WRITE(reg,val)	do { R128_DEREF( reg ) = val; } while (0)
+#define R128_READ(reg)		le32_to_cpu( R128_DEREF( reg ) )
+#define R128_WRITE(reg,val)	do { R128_DEREF( reg ) = cpu_to_le32( val ); } while (0)
 #endif
 
 #define R128_DEREF8(reg)	*(volatile u8 *)R128_ADDR( reg )
@@ -525,7 +529,7 @@ do {									\
 		DRM_INFO( "   OUT_RING( 0x%08x ) at 0x%x\n",		\
 			   (unsigned int)(x), write );			\
 	}								\
-	ring[write++] = (x);						\
+	ring[write++] = cpu_to_le32( x );				\
 	write &= tail_mask;						\
 } while (0)
 
diff --git a/linux/r128_state.c b/linux/r128_state.c
index 1006a77c..7eafd72d 100644
--- a/linux/r128_state.c
+++ b/linux/r128_state.c
@@ -660,7 +660,7 @@ static void r128_cce_dispatch_indirect( drm_device_t *dev,
 			u32 *data = (u32 *)
 				((char *)dev_priv->buffers->handle
 				 + buf->offset + start);
-			data[dwords++] = R128_CCE_PACKET2;
+			data[dwords++] = cpu_to_le32( R128_CCE_PACKET2 );
 		}
 
 		buf_priv->dispatched = 1;
@@ -727,16 +727,21 @@ static void r128_cce_dispatch_indices( drm_device_t *dev,
 		data = (u32 *)((char *)dev_priv->buffers->handle
 			       + buf->offset + start);
 
-		data[0] = CCE_PACKET3( R128_3D_RNDR_GEN_INDX_PRIM, dwords-2 );
+		data[0] = cpu_to_le32( CCE_PACKET3( R128_3D_RNDR_GEN_INDX_PRIM,
+						    dwords-2 ) );
 
-		data[1] = offset;
-		data[2] = R128_MAX_VB_VERTS;
-		data[3] = format;
-		data[4] = (prim | R128_CCE_VC_CNTL_PRIM_WALK_IND |
-			   (count << 16));
+		data[1] = cpu_to_le32( offset );
+		data[2] = cpu_to_le32( R128_MAX_VB_VERTS );
+		data[3] = cpu_to_le32( format );
+		data[4] = cpu_to_le32( (prim | R128_CCE_VC_CNTL_PRIM_WALK_IND |
+					(count << 16)) );
 
 		if ( count & 0x1 ) {
+#ifdef __LITTLE_ENDIAN
 			data[dwords-1] &= 0x0000ffff;
+#else
+			data[dwords-1] &= 0xffff0000;
+#endif
 		}
 
 		do {
@@ -842,23 +847,23 @@ static int r128_cce_dispatch_blit( drm_device_t *dev,
 
 	data = (u32 *)((char *)dev_priv->buffers->handle + buf->offset);
 
-	data[0] = CCE_PACKET3( R128_CNTL_HOSTDATA_BLT, dwords + 6 );
-	data[1] = (R128_GMC_DST_PITCH_OFFSET_CNTL |
-		   R128_GMC_BRUSH_NONE |
-		   (blit->format << 8) |
-		   R128_GMC_SRC_DATATYPE_COLOR |
-		   R128_ROP3_S |
-		   R128_DP_SRC_SOURCE_HOST_DATA |
-		   R128_GMC_CLR_CMP_CNTL_DIS |
-		   R128_GMC_AUX_CLIP_DIS |
-		   R128_GMC_WR_MSK_DIS);
-
-	data[2] = (blit->pitch << 21) | (blit->offset >> 5);
-	data[3] = 0xffffffff;
-	data[4] = 0xffffffff;
-	data[5] = (blit->y << 16) | blit->x;
-	data[6] = (blit->height << 16) | blit->width;
-	data[7] = dwords;
+	data[0] = cpu_to_le32( CCE_PACKET3( R128_CNTL_HOSTDATA_BLT, dwords + 6 ) );
+	data[1] = cpu_to_le32( (R128_GMC_DST_PITCH_OFFSET_CNTL |
+				R128_GMC_BRUSH_NONE |
+				(blit->format << 8) |
+				R128_GMC_SRC_DATATYPE_COLOR |
+				R128_ROP3_S |
+				R128_DP_SRC_SOURCE_HOST_DATA |
+				R128_GMC_CLR_CMP_CNTL_DIS |
+				R128_GMC_AUX_CLIP_DIS |
+				R128_GMC_WR_MSK_DIS) );
+
+	data[2] = cpu_to_le32( (blit->pitch << 21) | (blit->offset >> 5) );
+	data[3] = cpu_to_le32( 0xffffffff );
+	data[4] = cpu_to_le32( 0xffffffff );
+	data[5] = cpu_to_le32( (blit->y << 16) | blit->x );
+	data[6] = cpu_to_le32( (blit->height << 16) | blit->width );
+	data[7] = cpu_to_le32( dwords );
 
 	buf->used = (dwords + 8) * sizeof(u32);
 
diff --git a/linux/radeon_drv.c b/linux/radeon_drv.c
index 3791c5ec..59497aca 100644
--- a/linux/radeon_drv.c
+++ b/linux/radeon_drv.c
@@ -37,11 +37,11 @@
 
 #define DRIVER_NAME		"radeon"
 #define DRIVER_DESC		"ATI Radeon"
-#define DRIVER_DATE		"20010308"
+#define DRIVER_DATE		"20010405"
 
 #define DRIVER_MAJOR		1
 #define DRIVER_MINOR		0
-#define DRIVER_PATCHLEVEL	1
+#define DRIVER_PATCHLEVEL	2
 
 #define DRIVER_IOCTLS							     \
  [DRM_IOCTL_NR(DRM_IOCTL_DMA)]               = { radeon_cp_buffers,  1, 0 }, \