fix build of i810 kernel driver for 2.4.3 or greater kernels

4 files changed, 82 insertions, 8 deletions

diff --git a/linux-core/drm_drv.c b/linux-core/drm_drv.c
index 7447ca6d..87da5951 100644
--- a/linux-core/drm_drv.c
+++ b/linux-core/drm_drv.c
@@ -81,6 +81,9 @@
 #ifndef __HAVE_COUNTERS
 #define __HAVE_COUNTERS			0
 #endif
+#ifndef __HAVE_SG
+#define __HAVE_SG			0
+#endif
 
 #ifndef DRIVER_PREINIT
 #define DRIVER_PREINIT()
@@ -135,8 +138,10 @@ static drm_ioctl_desc_t		  DRM(ioctls)[] = {
 	[DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)]       = { DRM(addmap),      1, 1 },
 	[DRM_IOCTL_NR(DRM_IOCTL_RM_MAP)]        = { DRM(rmmap),       1, 0 },
 
+#if __HAVE_CTX_BITMAP
 	[DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX)] = { DRM(setsareactx), 1, 1 },
 	[DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX)] = { DRM(getsareactx), 1, 0 },
+#endif
 
 	[DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)]       = { DRM(addctx),      1, 1 },
 	[DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)]        = { DRM(rmctx),       1, 1 },
@@ -178,6 +183,11 @@ static drm_ioctl_desc_t		  DRM(ioctls)[] = {
 	[DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)]    = { DRM(agp_unbind),  1, 1 },
 #endif
 
+#if __HAVE_SG
+	[DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC)]      = { DRM(sg_alloc),    1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_SG_FREE)]       = { DRM(sg_free),     1, 1 },
+#endif
+
 	DRIVER_IOCTLS
 };
 
@@ -415,6 +425,17 @@ static int DRM(takedown)( drm_device_t *dev )
 				 * handled in the AGP/GART driver.
 				 */
 				break;
+                       case _DRM_SCATTER_GATHER:
+				/* Handle it, but do nothing, if HAVE_SG
+				 * isn't defined.
+				 */
+#if __HAVE_SG
+				if(dev->sg) {
+					DRM(sg_cleanup)(dev->sg);
+					dev->sg = NULL;
+				}
+#endif
+				break;
 			}
  			DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
  		}
diff --git a/linux-core/i810_dma.c b/linux-core/i810_dma.c
index 4c90496a..8a5503ea 100644
--- a/linux-core/i810_dma.c
+++ b/linux-core/i810_dma.c
@@ -182,7 +182,11 @@ static int i810_map_buffer(drm_buf_t *buf, struct file *filp)
 	if(buf_priv->currently_mapped == I810_BUF_MAPPED) return -EINVAL;
 
 	if(VM_DONTCOPY != 0) {
-		down(&current->mm->mmap_sem);
+#if LINUX_VERSION_CODE <= 0x020402
+		down( &current->mm->mmap_sem );
+#else
+		down_write( &current->mm->mmap_sem );
+#endif
 		old_fops = filp->f_op;
 		filp->f_op = &i810_buffer_fops;
 		dev_priv->mmap_buffer = buf;
@@ -198,7 +202,11 @@ static int i810_map_buffer(drm_buf_t *buf, struct file *filp)
 			retcode = (signed int)buf_priv->virtual;
 			buf_priv->virtual = 0;
 		}
-   		up(&current->mm->mmap_sem);
+#if LINUX_VERSION_CODE <= 0x020402
+		up( &current->mm->mmap_sem );
+#else
+		up_write( &current->mm->mmap_sem );
+#endif
 	} else {
 		buf_priv->virtual = buf_priv->kernel_virtual;
    		buf_priv->currently_mapped = I810_BUF_MAPPED;
@@ -214,7 +222,11 @@ static int i810_unmap_buffer(drm_buf_t *buf)
 	if(VM_DONTCOPY != 0) {
 		if(buf_priv->currently_mapped != I810_BUF_MAPPED)
 			return -EINVAL;
-		down(&current->mm->mmap_sem);
+#if LINUX_VERSION_CODE <= 0x020402
+		down( &current->mm->mmap_sem );
+#else
+		down_write( &current->mm->mmap_sem );
+#endif
 #if LINUX_VERSION_CODE < 0x020399
         	retcode = do_munmap((unsigned long)buf_priv->virtual,
 				    (size_t) buf->total);
@@ -223,7 +235,11 @@ static int i810_unmap_buffer(drm_buf_t *buf)
 				    (unsigned long)buf_priv->virtual,
 				    (size_t) buf->total);
 #endif
-   		up(&current->mm->mmap_sem);
+#if LINUX_VERSION_CODE <= 0x020402
+		up( &current->mm->mmap_sem );
+#else
+		up_write( &current->mm->mmap_sem );
+#endif
 	}
    	buf_priv->currently_mapped = I810_BUF_UNMAPPED;
    	buf_priv->virtual = 0;
diff --git a/linux/drm_drv.h b/linux/drm_drv.h
index 7447ca6d..87da5951 100644
--- a/linux/drm_drv.h
+++ b/linux/drm_drv.h
@@ -81,6 +81,9 @@
 #ifndef __HAVE_COUNTERS
 #define __HAVE_COUNTERS			0
 #endif
+#ifndef __HAVE_SG
+#define __HAVE_SG			0
+#endif
 
 #ifndef DRIVER_PREINIT
 #define DRIVER_PREINIT()
@@ -135,8 +138,10 @@ static drm_ioctl_desc_t		  DRM(ioctls)[] = {
 	[DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)]       = { DRM(addmap),      1, 1 },
 	[DRM_IOCTL_NR(DRM_IOCTL_RM_MAP)]        = { DRM(rmmap),       1, 0 },
 
+#if __HAVE_CTX_BITMAP
 	[DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX)] = { DRM(setsareactx), 1, 1 },
 	[DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX)] = { DRM(getsareactx), 1, 0 },
+#endif
 
 	[DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)]       = { DRM(addctx),      1, 1 },
 	[DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)]        = { DRM(rmctx),       1, 1 },
@@ -178,6 +183,11 @@ static drm_ioctl_desc_t		  DRM(ioctls)[] = {
 	[DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)]    = { DRM(agp_unbind),  1, 1 },
 #endif
 
+#if __HAVE_SG
+	[DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC)]      = { DRM(sg_alloc),    1, 1 },
+	[DRM_IOCTL_NR(DRM_IOCTL_SG_FREE)]       = { DRM(sg_free),     1, 1 },
+#endif
+
 	DRIVER_IOCTLS
 };
 
@@ -415,6 +425,17 @@ static int DRM(takedown)( drm_device_t *dev )
 				 * handled in the AGP/GART driver.
 				 */
 				break;
+                       case _DRM_SCATTER_GATHER:
+				/* Handle it, but do nothing, if HAVE_SG
+				 * isn't defined.
+				 */
+#if __HAVE_SG
+				if(dev->sg) {
+					DRM(sg_cleanup)(dev->sg);
+					dev->sg = NULL;
+				}
+#endif
+				break;
 			}
  			DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
  		}
diff --git a/linux/i810_dma.c b/linux/i810_dma.c
index 4c90496a..8a5503ea 100644
--- a/linux/i810_dma.c
+++ b/linux/i810_dma.c
@@ -182,7 +182,11 @@ static int i810_map_buffer(drm_buf_t *buf, struct file *filp)
 	if(buf_priv->currently_mapped == I810_BUF_MAPPED) return -EINVAL;
 
 	if(VM_DONTCOPY != 0) {
-		down(&current->mm->mmap_sem);
+#if LINUX_VERSION_CODE <= 0x020402
+		down( &current->mm->mmap_sem );
+#else
+		down_write( &current->mm->mmap_sem );
+#endif
 		old_fops = filp->f_op;
 		filp->f_op = &i810_buffer_fops;
 		dev_priv->mmap_buffer = buf;
@@ -198,7 +202,11 @@ static int i810_map_buffer(drm_buf_t *buf, struct file *filp)
 			retcode = (signed int)buf_priv->virtual;
 			buf_priv->virtual = 0;
 		}
-   		up(&current->mm->mmap_sem);
+#if LINUX_VERSION_CODE <= 0x020402
+		up( &current->mm->mmap_sem );
+#else
+		up_write( &current->mm->mmap_sem );
+#endif
 	} else {
 		buf_priv->virtual = buf_priv->kernel_virtual;
    		buf_priv->currently_mapped = I810_BUF_MAPPED;
@@ -214,7 +222,11 @@ static int i810_unmap_buffer(drm_buf_t *buf)
 	if(VM_DONTCOPY != 0) {
 		if(buf_priv->currently_mapped != I810_BUF_MAPPED)
 			return -EINVAL;
-		down(&current->mm->mmap_sem);
+#if LINUX_VERSION_CODE <= 0x020402
+		down( &current->mm->mmap_sem );
+#else
+		down_write( &current->mm->mmap_sem );
+#endif
 #if LINUX_VERSION_CODE < 0x020399
         	retcode = do_munmap((unsigned long)buf_priv->virtual,
 				    (size_t) buf->total);
@@ -223,7 +235,11 @@ static int i810_unmap_buffer(drm_buf_t *buf)
 				    (unsigned long)buf_priv->virtual,
 				    (size_t) buf->total);
 #endif
-   		up(&current->mm->mmap_sem);
+#if LINUX_VERSION_CODE <= 0x020402
+		up( &current->mm->mmap_sem );
+#else
+		up_write( &current->mm->mmap_sem );
+#endif
 	}
    	buf_priv->currently_mapped = I810_BUF_UNMAPPED;
    	buf_priv->virtual = 0;