From 46cacdca855a99c1ffe0ccf7a7f88134bca9bade Mon Sep 17 00:00:00 2001
From: Alan Hourihane <alanh@fairlite.demon.co.uk>
Date: Wed, 6 Mar 2002 19:30:45 +0000
Subject: first pass at merging mesa 4.0 kernel drivers into new bsd-3-0-0
 branch.

---
 bsd-core/drmP.h        |  4 ++++
 bsd-core/drm_auth.c    |  1 +
 bsd-core/drm_dma.c     | 19 +++++++++++++++++++
 bsd-core/drm_drv.c     |  2 --
 bsd-core/drm_memory.c  | 24 ++++++++++++++++++++++++
 bsd-core/drm_scatter.c |  2 ++
 6 files changed, 50 insertions(+), 2 deletions(-)

(limited to 'bsd-core')

diff --git a/bsd-core/drmP.h b/bsd-core/drmP.h
index ead40f86..5841ea96 100644
--- a/bsd-core/drmP.h
+++ b/bsd-core/drmP.h
@@ -119,6 +119,9 @@ typedef struct drm_file drm_file_t;
 #define DRM_IOREMAP(map)						\
 	(map)->handle = DRM(ioremap)( (map)->offset, (map)->size )
 
+#define DRM_IOREMAP_NOCACHE(map)					\
+	(map)->handle = DRM(ioremap_nocache)((map)->offset, (map)->size)
+
 #define DRM_IOREMAPFREE(map)						\
 	do {								\
 		if ( (map)->handle && (map)->size )			\
@@ -512,6 +515,7 @@ extern unsigned long DRM(alloc_pages)(int order, int area);
 extern void	     DRM(free_pages)(unsigned long address, int order,
 				     int area);
 extern void	     *DRM(ioremap)(unsigned long offset, unsigned long size);
+extern void	     *DRM(ioremap_nocache)(unsigned long offset, unsigned long size);
 extern void	     DRM(ioremapfree)(void *pt, unsigned long size);
 
 #if __REALLY_HAVE_AGP
diff --git a/bsd-core/drm_auth.c b/bsd-core/drm_auth.c
index f2c2d8da..db0c0118 100644
--- a/bsd-core/drm_auth.c
+++ b/bsd-core/drm_auth.c
@@ -64,6 +64,7 @@ int DRM(add_magic)(drm_device_t *dev, drm_file_t *priv, drm_magic_t magic)
 	hash	     = DRM(hash_magic)(magic);
 	entry	     = (drm_magic_entry_t*) DRM(alloc)(sizeof(*entry), DRM_MEM_MAGIC);
 	if (!entry) DRM_OS_RETURN(ENOMEM);
+	memset(entry, 0, sizeof(*entry));
 	entry->magic = magic;
 	entry->priv  = priv;
 	entry->next  = NULL;
diff --git a/bsd-core/drm_dma.c b/bsd-core/drm_dma.c
index e5aef241..3fd1bfe6 100644
--- a/bsd-core/drm_dma.c
+++ b/bsd-core/drm_dma.c
@@ -600,6 +600,25 @@ int DRM(control)( DRM_OS_IOCTL )
 	}
 }
 
+#else
+
+int DRM(control)( struct inode *inode, struct file *filp,
+		  unsigned int cmd, unsigned long arg )
+{
+	drm_control_t ctl;
+
+	if ( copy_from_user( &ctl, (drm_control_t *)arg, sizeof(ctl) ) )
+		return -EFAULT;
+
+	switch ( ctl.func ) {
+	case DRM_INST_HANDLER:
+	case DRM_UNINST_HANDLER:
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
 #endif /* __HAVE_DMA_IRQ */
 
 #endif /* __HAVE_DMA */
diff --git a/bsd-core/drm_drv.c b/bsd-core/drm_drv.c
index 4e5d76fb..ee5e3fbe 100644
--- a/bsd-core/drm_drv.c
+++ b/bsd-core/drm_drv.c
@@ -198,10 +198,8 @@ static drm_ioctl_desc_t		  DRM(ioctls)[] = {
 
 	/* The DRM_IOCTL_DMA ioctl should be defined by the driver.
 	 */
-#if __HAVE_DMA_IRQ
 	[DRM_IOCTL_NR(DRM_IOCTL_CONTROL)]       = { DRM(control),     1, 1 },
 #endif
-#endif
 
 #if __REALLY_HAVE_AGP
 	[DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)]   = { DRM(agp_acquire), 1, 1 },
diff --git a/bsd-core/drm_memory.c b/bsd-core/drm_memory.c
index 605b42ae..97f2bb81 100644
--- a/bsd-core/drm_memory.c
+++ b/bsd-core/drm_memory.c
@@ -290,6 +290,30 @@ void *DRM(ioremap)(unsigned long offset, unsigned long size)
 	return pt;
 }
 
+void *DRM(ioremap_nocache)(unsigned long offset, unsigned long size)
+{
+	void *pt;
+
+	if (!size) {
+		DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
+			      "Mapping 0 bytes at 0x%08lx\n", offset);
+		return NULL;
+	}
+
+	/* FIXME FOR BSD */
+	if (!(pt = ioremap_nocache(offset, size))) {
+		DRM_OS_SPINLOCK(&DRM(mem_lock));
+		++DRM(mem_stats)[DRM_MEM_MAPPINGS].fail_count;
+		DRM_OS_SPINUNLOCK(&DRM(mem_lock));
+		return NULL;
+	}
+	DRM_OS_SPINLOCK(&DRM(mem_lock));
+	++DRM(mem_stats)[DRM_MEM_MAPPINGS].succeed_count;
+	DRM(mem_stats)[DRM_MEM_MAPPINGS].bytes_allocated += size;
+	DRM_OS_SPINUNLOCK(&DRM(mem_lock));
+	return pt;
+}
+
 void DRM(ioremapfree)(void *pt, unsigned long size)
 {
 	int alloc_count;
diff --git a/bsd-core/drm_scatter.c b/bsd-core/drm_scatter.c
index a6b8275f..07e8e4e5 100644
--- a/bsd-core/drm_scatter.c
+++ b/bsd-core/drm_scatter.c
@@ -97,6 +97,8 @@ int DRM(sg_alloc)( struct inode *inode, struct file *filp,
 		return -ENOMEM;
 	}
 
+	memset(entry->pagelist, 0, pages * sizeof(*entry->pagelist));
+
 	entry->busaddr = DRM(alloc)( pages * sizeof(*entry->busaddr),
 				     DRM_MEM_PAGES );
 	if ( !entry->busaddr ) {
-- 
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