Merge from 2.6 kernel (Linus Torvalds)

10 files changed, 112 insertions, 66 deletions

diff --git a/linux-core/Kconfig b/linux-core/Kconfig
index 994371de..d0358e95 100644
--- a/linux-core/Kconfig
+++ b/linux-core/Kconfig
@@ -24,10 +24,10 @@ config DRM_TDFX
 
 config DRM_GAMMA
 	tristate "3dlabs GMX 2000"
-	depends on DRM && n
+	depends on DRM
 	help
-	  This is the old gamma driver, disabled for now unless somebody
-	  tells me it actually might work.
+	  This is the old gamma driver, please tell me if it might actually
+	  work.
 
 config DRM_R128
 	tristate "ATI Rage 128"
@@ -49,7 +49,7 @@ config DRM_RADEON
 
 config DRM_I810
 	tristate "Intel I810"
-	depends on DRM && AGP
+	depends on DRM && AGP && AGP_INTEL
 	help
 	  Choose this option if you have an Intel I810 graphics card.  If M is
 	  selected, the module will be called i810.  AGP support is required
@@ -57,7 +57,7 @@ config DRM_I810
 
 config DRM_I830
 	tristate "Intel 830M, 845G, 852GM, 855GM, 865G"
-	depends on DRM && AGP
+	depends on DRM && AGP && AGP_INTEL
 	help
 	  Choose this option if you have a system that has Intel 830M, 845G,
 	  852GM, 855GM or 865G integrated graphics.  If M is selected, the
@@ -72,3 +72,12 @@ config DRM_MGA
 	  Choose this option if you have a Matrox G200, G400 or G450 graphics
 	  card.  If M is selected, the module will be called mga.  AGP
 	  support is required for this driver to work.
+
+config DRM_SIS
+	tristate "SiS video cards"
+	depends on DRM && AGP && FB_SIS
+	help
+	  Choose this option if you have a SiS 630 or compatibel video 
+          chipset. If M is selected the module will be called sis. AGP
+          and SiS FB support is required for this driver to work.
+
diff --git a/linux-core/drm_agpsupport.c b/linux-core/drm_agpsupport.c
index a8f6197b..0f281b57 100644
--- a/linux-core/drm_agpsupport.c
+++ b/linux-core/drm_agpsupport.c
@@ -110,7 +110,8 @@ int DRM(agp_acquire)(struct inode *inode, struct file *filp,
 	if ( dev->agp->cant_use_aperture )
 		return -EINVAL;
 #endif
-	if ((retcode = drm_agp->acquire())) return retcode;
+	if ((retcode = drm_agp->acquire()))
+		return retcode;
 	dev->agp->acquired = 1;
 	return 0;
 }
@@ -147,7 +148,8 @@ int DRM(agp_release)(struct inode *inode, struct file *filp,
  */
 void DRM(agp_do_release)(void)
 {
-	if (drm_agp->release) drm_agp->release();
+	if (drm_agp->release)
+		drm_agp->release();
 }
 
 /**
@@ -205,7 +207,8 @@ int DRM(agp_alloc)(struct inode *inode, struct file *filp,
 	unsigned long    pages;
 	u32 		 type;
 
-	if (!dev->agp || !dev->agp->acquired) return -EINVAL;
+	if (!dev->agp || !dev->agp->acquired)
+		return -EINVAL;
 	if (copy_from_user(&request, (drm_agp_buffer_t *)arg, sizeof(request)))
 		return -EFAULT;
 	if (!(entry = DRM(alloc)(sizeof(*entry), DRM_MEM_AGPLISTS)))
@@ -227,11 +230,12 @@ int DRM(agp_alloc)(struct inode *inode, struct file *filp,
 	entry->pages     = pages;
 	entry->prev      = NULL;
 	entry->next      = dev->agp->memory;
-	if (dev->agp->memory) dev->agp->memory->prev = entry;
+	if (dev->agp->memory)
+		dev->agp->memory->prev = entry;
 	dev->agp->memory = entry;
 
 	request.handle   = entry->handle;
-        request.physical = memory->physical;
+	request.physical = memory->physical;
 
 	if (copy_to_user((drm_agp_buffer_t *)arg, &request, sizeof(request))) {
 		dev->agp->memory       = entry->next;
@@ -258,7 +262,8 @@ static drm_agp_mem_t *DRM(agp_lookup_entry)(drm_device_t *dev,
 	drm_agp_mem_t *entry;
 
 	for (entry = dev->agp->memory; entry; entry = entry->next) {
-		if (entry->handle == handle) return entry;
+		if (entry->handle == handle)
+			return entry;
 	}
 	return NULL;
 }
@@ -284,12 +289,14 @@ int DRM(agp_unbind)(struct inode *inode, struct file *filp,
 	drm_agp_mem_t     *entry;
 	int ret;
 
-	if (!dev->agp || !dev->agp->acquired) return -EINVAL;
+	if (!dev->agp || !dev->agp->acquired)
+		return -EINVAL;
 	if (copy_from_user(&request, (drm_agp_binding_t *)arg, sizeof(request)))
 		return -EFAULT;
 	if (!(entry = DRM(agp_lookup_entry)(dev, request.handle)))
 		return -EINVAL;
-	if (!entry->bound) return -EINVAL;
+	if (!entry->bound)
+		return -EINVAL;
 	ret = DRM(unbind_agp)(entry->memory);
 	if (ret == 0)
 	    entry->bound = 0;
@@ -325,9 +332,11 @@ int DRM(agp_bind)(struct inode *inode, struct file *filp,
 		return -EFAULT;
 	if (!(entry = DRM(agp_lookup_entry)(dev, request.handle)))
 		return -EINVAL;
-	if (entry->bound) return -EINVAL;
+	if (entry->bound)
+		return -EINVAL;
 	page = (request.offset + PAGE_SIZE - 1) / PAGE_SIZE;
-	if ((retcode = DRM(bind_agp)(entry->memory, page))) return retcode;
+	if ((retcode = DRM(bind_agp)(entry->memory, page)))
+		return retcode;
 	entry->bound = dev->agp->base + (page << PAGE_SHIFT);
 	DRM_DEBUG("base = 0x%lx entry->bound = 0x%lx\n",
 		  dev->agp->base, entry->bound);
@@ -356,16 +365,23 @@ int DRM(agp_free)(struct inode *inode, struct file *filp,
 	drm_agp_buffer_t request;
 	drm_agp_mem_t    *entry;
 
-	if (!dev->agp || !dev->agp->acquired) return -EINVAL;
+	if (!dev->agp || !dev->agp->acquired)
+		return -EINVAL;
 	if (copy_from_user(&request, (drm_agp_buffer_t *)arg, sizeof(request)))
 		return -EFAULT;
 	if (!(entry = DRM(agp_lookup_entry)(dev, request.handle)))
 		return -EINVAL;
-	if (entry->bound) DRM(unbind_agp)(entry->memory);
+	if (entry->bound)
+		DRM(unbind_agp)(entry->memory);
+
+	if (entry->prev)
+		entry->prev->next = entry->next;
+	else
+		dev->agp->memory = entry->next;
+
+	if (entry->next)
+		entry->next->prev = entry->prev;
 
-	if (entry->prev) entry->prev->next = entry->next;
-	else             dev->agp->memory  = entry->next;
-	if (entry->next) entry->next->prev = entry->prev;
 	DRM(free_agp)(entry->memory, entry->pages);
 	DRM(free)(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
 	return 0;
@@ -402,12 +418,6 @@ drm_agp_head_t *DRM(agp_init)(void)
 		head->cant_use_aperture = head->agp_info.cant_use_aperture;
 		head->page_mask = head->agp_info.page_mask;
 #endif
-
-		DRM_INFO("AGP %d.%d aperture @ 0x%08lx %ZuMB\n",
-			 head->agp_info.version.major,
-			 head->agp_info.version.minor,
-			 head->agp_info.aper_base,
-			 head->agp_info.aper_size);
 	}
 	return head;
 }
@@ -426,14 +436,16 @@ void DRM(agp_uninit)(void)
 /** Calls drm_agp->allocate_memory() */
 DRM_AGP_MEM *DRM(agp_allocate_memory)(size_t pages, u32 type)
 {
-	if (!drm_agp->allocate_memory) return NULL;
+	if (!drm_agp->allocate_memory)
+		return NULL;
 	return drm_agp->allocate_memory(pages, type);
 }
 
 /** Calls drm_agp->free_memory() */
 int DRM(agp_free_memory)(DRM_AGP_MEM *handle)
 {
-	if (!handle || !drm_agp->free_memory) return 0;
+	if (!handle || !drm_agp->free_memory)
+		return 0;
 	drm_agp->free_memory(handle);
 	return 1;
 }
@@ -441,14 +453,16 @@ int DRM(agp_free_memory)(DRM_AGP_MEM *handle)
 /** Calls drm_agp->bind_memory() */
 int DRM(agp_bind_memory)(DRM_AGP_MEM *handle, off_t start)
 {
-	if (!handle || !drm_agp->bind_memory) return -EINVAL;
+	if (!handle || !drm_agp->bind_memory)
+		return -EINVAL;
 	return drm_agp->bind_memory(handle, start);
 }
 
 /** Calls drm_agp->unbind_memory() */
 int DRM(agp_unbind_memory)(DRM_AGP_MEM *handle)
 {
-	if (!handle || !drm_agp->unbind_memory) return -EINVAL;
+	if (!handle || !drm_agp->unbind_memory)
+		return -EINVAL;
 	return drm_agp->unbind_memory(handle);
 }
 
diff --git a/linux-core/drm_dma.c b/linux-core/drm_dma.c
index 8e0ec95e..aef84d4e 100644
--- a/linux-core/drm_dma.c
+++ b/linux-core/drm_dma.c
@@ -239,7 +239,7 @@ int DRM(irq_install)( drm_device_t *dev, int irq )
 
 	down( &dev->struct_sem );
 
-				/* Driver must have been initialized */
+	/* Driver must have been initialized */
 	if ( !dev->dev_private ) {
 		up( &dev->struct_sem );
 		return -EINVAL;
diff --git a/linux-core/drm_drv.c b/linux-core/drm_drv.c
index 5f3eebe3..d62156b3 100644
--- a/linux-core/drm_drv.c
+++ b/linux-core/drm_drv.c
@@ -344,7 +344,6 @@ static int DRM(setup)( drm_device_t *dev )
 	dev->last_context = 0;
 	dev->last_switch = 0;
 	dev->last_checked = 0;
-	init_timer( &dev->timer );
 	init_waitqueue_head( &dev->context_wait );
 
 	dev->ctx_start = 0;
@@ -624,6 +623,7 @@ static int __init drm_init( void )
 		dev = &(DRM(device)[i]);
 		memset( (void *)dev, 0, sizeof(*dev) );
 		dev->count_lock = SPIN_LOCK_UNLOCKED;
+		init_timer( &dev->timer );
 		sema_init( &dev->struct_sem, 1 );
 
 		if ((DRM(minor)[i] = DRM(stub_register)(DRIVER_NAME, &DRM(fops),dev)) < 0)
diff --git a/linux-core/drm_vm.c b/linux-core/drm_vm.c
index c1dfb377..29cad56d 100644
--- a/linux-core/drm_vm.c
+++ b/linux-core/drm_vm.c
@@ -510,7 +510,7 @@ int DRM(mmap)(struct file *filp, struct vm_area_struct *vma)
 	if (map->size != vma->vm_end - vma->vm_start) return -EINVAL;
 
 	if (!capable(CAP_SYS_ADMIN) && (map->flags & _DRM_READ_ONLY)) {
-		vma->vm_flags &= (VM_READ | VM_MAYREAD);
+		vma->vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
 #if defined(__i386__) || defined(__x86_64__)
 		pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW;
 #else
diff --git a/linux/Kconfig b/linux/Kconfig
index 994371de..d0358e95 100644
--- a/linux/Kconfig
+++ b/linux/Kconfig
@@ -24,10 +24,10 @@ config DRM_TDFX
 
 config DRM_GAMMA
 	tristate "3dlabs GMX 2000"
-	depends on DRM && n
+	depends on DRM
 	help
-	  This is the old gamma driver, disabled for now unless somebody
-	  tells me it actually might work.
+	  This is the old gamma driver, please tell me if it might actually
+	  work.
 
 config DRM_R128
 	tristate "ATI Rage 128"
@@ -49,7 +49,7 @@ config DRM_RADEON
 
 config DRM_I810
 	tristate "Intel I810"
-	depends on DRM && AGP
+	depends on DRM && AGP && AGP_INTEL
 	help
 	  Choose this option if you have an Intel I810 graphics card.  If M is
 	  selected, the module will be called i810.  AGP support is required
@@ -57,7 +57,7 @@ config DRM_I810
 
 config DRM_I830
 	tristate "Intel 830M, 845G, 852GM, 855GM, 865G"
-	depends on DRM && AGP
+	depends on DRM && AGP && AGP_INTEL
 	help
 	  Choose this option if you have a system that has Intel 830M, 845G,
 	  852GM, 855GM or 865G integrated graphics.  If M is selected, the
@@ -72,3 +72,12 @@ config DRM_MGA
 	  Choose this option if you have a Matrox G200, G400 or G450 graphics
 	  card.  If M is selected, the module will be called mga.  AGP
 	  support is required for this driver to work.
+
+config DRM_SIS
+	tristate "SiS video cards"
+	depends on DRM && AGP && FB_SIS
+	help
+	  Choose this option if you have a SiS 630 or compatibel video 
+          chipset. If M is selected the module will be called sis. AGP
+          and SiS FB support is required for this driver to work.
+
diff --git a/linux/drm_agpsupport.h b/linux/drm_agpsupport.h
index a8f6197b..0f281b57 100644
--- a/linux/drm_agpsupport.h
+++ b/linux/drm_agpsupport.h
@@ -110,7 +110,8 @@ int DRM(agp_acquire)(struct inode *inode, struct file *filp,
 	if ( dev->agp->cant_use_aperture )
 		return -EINVAL;
 #endif
-	if ((retcode = drm_agp->acquire())) return retcode;
+	if ((retcode = drm_agp->acquire()))
+		return retcode;
 	dev->agp->acquired = 1;
 	return 0;
 }
@@ -147,7 +148,8 @@ int DRM(agp_release)(struct inode *inode, struct file *filp,
  */
 void DRM(agp_do_release)(void)
 {
-	if (drm_agp->release) drm_agp->release();
+	if (drm_agp->release)
+		drm_agp->release();
 }
 
 /**
@@ -205,7 +207,8 @@ int DRM(agp_alloc)(struct inode *inode, struct file *filp,
 	unsigned long    pages;
 	u32 		 type;
 
-	if (!dev->agp || !dev->agp->acquired) return -EINVAL;
+	if (!dev->agp || !dev->agp->acquired)
+		return -EINVAL;
 	if (copy_from_user(&request, (drm_agp_buffer_t *)arg, sizeof(request)))
 		return -EFAULT;
 	if (!(entry = DRM(alloc)(sizeof(*entry), DRM_MEM_AGPLISTS)))
@@ -227,11 +230,12 @@ int DRM(agp_alloc)(struct inode *inode, struct file *filp,
 	entry->pages     = pages;
 	entry->prev      = NULL;
 	entry->next      = dev->agp->memory;
-	if (dev->agp->memory) dev->agp->memory->prev = entry;
+	if (dev->agp->memory)
+		dev->agp->memory->prev = entry;
 	dev->agp->memory = entry;
 
 	request.handle   = entry->handle;
-        request.physical = memory->physical;
+	request.physical = memory->physical;
 
 	if (copy_to_user((drm_agp_buffer_t *)arg, &request, sizeof(request))) {
 		dev->agp->memory       = entry->next;
@@ -258,7 +262,8 @@ static drm_agp_mem_t *DRM(agp_lookup_entry)(drm_device_t *dev,
 	drm_agp_mem_t *entry;
 
 	for (entry = dev->agp->memory; entry; entry = entry->next) {
-		if (entry->handle == handle) return entry;
+		if (entry->handle == handle)
+			return entry;
 	}
 	return NULL;
 }
@@ -284,12 +289,14 @@ int DRM(agp_unbind)(struct inode *inode, struct file *filp,
 	drm_agp_mem_t     *entry;
 	int ret;
 
-	if (!dev->agp || !dev->agp->acquired) return -EINVAL;
+	if (!dev->agp || !dev->agp->acquired)
+		return -EINVAL;
 	if (copy_from_user(&request, (drm_agp_binding_t *)arg, sizeof(request)))
 		return -EFAULT;
 	if (!(entry = DRM(agp_lookup_entry)(dev, request.handle)))
 		return -EINVAL;
-	if (!entry->bound) return -EINVAL;
+	if (!entry->bound)
+		return -EINVAL;
 	ret = DRM(unbind_agp)(entry->memory);
 	if (ret == 0)
 	    entry->bound = 0;
@@ -325,9 +332,11 @@ int DRM(agp_bind)(struct inode *inode, struct file *filp,
 		return -EFAULT;
 	if (!(entry = DRM(agp_lookup_entry)(dev, request.handle)))
 		return -EINVAL;
-	if (entry->bound) return -EINVAL;
+	if (entry->bound)
+		return -EINVAL;
 	page = (request.offset + PAGE_SIZE - 1) / PAGE_SIZE;
-	if ((retcode = DRM(bind_agp)(entry->memory, page))) return retcode;
+	if ((retcode = DRM(bind_agp)(entry->memory, page)))
+		return retcode;
 	entry->bound = dev->agp->base + (page << PAGE_SHIFT);
 	DRM_DEBUG("base = 0x%lx entry->bound = 0x%lx\n",
 		  dev->agp->base, entry->bound);
@@ -356,16 +365,23 @@ int DRM(agp_free)(struct inode *inode, struct file *filp,
 	drm_agp_buffer_t request;
 	drm_agp_mem_t    *entry;
 
-	if (!dev->agp || !dev->agp->acquired) return -EINVAL;
+	if (!dev->agp || !dev->agp->acquired)
+		return -EINVAL;
 	if (copy_from_user(&request, (drm_agp_buffer_t *)arg, sizeof(request)))
 		return -EFAULT;
 	if (!(entry = DRM(agp_lookup_entry)(dev, request.handle)))
 		return -EINVAL;
-	if (entry->bound) DRM(unbind_agp)(entry->memory);
+	if (entry->bound)
+		DRM(unbind_agp)(entry->memory);
+
+	if (entry->prev)
+		entry->prev->next = entry->next;
+	else
+		dev->agp->memory = entry->next;
+
+	if (entry->next)
+		entry->next->prev = entry->prev;
 
-	if (entry->prev) entry->prev->next = entry->next;
-	else             dev->agp->memory  = entry->next;
-	if (entry->next) entry->next->prev = entry->prev;
 	DRM(free_agp)(entry->memory, entry->pages);
 	DRM(free)(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
 	return 0;
@@ -402,12 +418,6 @@ drm_agp_head_t *DRM(agp_init)(void)
 		head->cant_use_aperture = head->agp_info.cant_use_aperture;
 		head->page_mask = head->agp_info.page_mask;
 #endif
-
-		DRM_INFO("AGP %d.%d aperture @ 0x%08lx %ZuMB\n",
-			 head->agp_info.version.major,
-			 head->agp_info.version.minor,
-			 head->agp_info.aper_base,
-			 head->agp_info.aper_size);
 	}
 	return head;
 }
@@ -426,14 +436,16 @@ void DRM(agp_uninit)(void)
 /** Calls drm_agp->allocate_memory() */
 DRM_AGP_MEM *DRM(agp_allocate_memory)(size_t pages, u32 type)
 {
-	if (!drm_agp->allocate_memory) return NULL;
+	if (!drm_agp->allocate_memory)
+		return NULL;
 	return drm_agp->allocate_memory(pages, type);
 }
 
 /** Calls drm_agp->free_memory() */
 int DRM(agp_free_memory)(DRM_AGP_MEM *handle)
 {
-	if (!handle || !drm_agp->free_memory) return 0;
+	if (!handle || !drm_agp->free_memory)
+		return 0;
 	drm_agp->free_memory(handle);
 	return 1;
 }
@@ -441,14 +453,16 @@ int DRM(agp_free_memory)(DRM_AGP_MEM *handle)
 /** Calls drm_agp->bind_memory() */
 int DRM(agp_bind_memory)(DRM_AGP_MEM *handle, off_t start)
 {
-	if (!handle || !drm_agp->bind_memory) return -EINVAL;
+	if (!handle || !drm_agp->bind_memory)
+		return -EINVAL;
 	return drm_agp->bind_memory(handle, start);
 }
 
 /** Calls drm_agp->unbind_memory() */
 int DRM(agp_unbind_memory)(DRM_AGP_MEM *handle)
 {
-	if (!handle || !drm_agp->unbind_memory) return -EINVAL;
+	if (!handle || !drm_agp->unbind_memory)
+		return -EINVAL;
 	return drm_agp->unbind_memory(handle);
 }
 
diff --git a/linux/drm_dma.h b/linux/drm_dma.h
index 8e0ec95e..aef84d4e 100644
--- a/linux/drm_dma.h
+++ b/linux/drm_dma.h
@@ -239,7 +239,7 @@ int DRM(irq_install)( drm_device_t *dev, int irq )
 
 	down( &dev->struct_sem );
 
-				/* Driver must have been initialized */
+	/* Driver must have been initialized */
 	if ( !dev->dev_private ) {
 		up( &dev->struct_sem );
 		return -EINVAL;
diff --git a/linux/drm_drv.h b/linux/drm_drv.h
index 5f3eebe3..d62156b3 100644
--- a/linux/drm_drv.h
+++ b/linux/drm_drv.h
@@ -344,7 +344,6 @@ static int DRM(setup)( drm_device_t *dev )
 	dev->last_context = 0;
 	dev->last_switch = 0;
 	dev->last_checked = 0;
-	init_timer( &dev->timer );
 	init_waitqueue_head( &dev->context_wait );
 
 	dev->ctx_start = 0;
@@ -624,6 +623,7 @@ static int __init drm_init( void )
 		dev = &(DRM(device)[i]);
 		memset( (void *)dev, 0, sizeof(*dev) );
 		dev->count_lock = SPIN_LOCK_UNLOCKED;
+		init_timer( &dev->timer );
 		sema_init( &dev->struct_sem, 1 );
 
 		if ((DRM(minor)[i] = DRM(stub_register)(DRIVER_NAME, &DRM(fops),dev)) < 0)
diff --git a/linux/drm_vm.h b/linux/drm_vm.h
index c1dfb377..29cad56d 100644
--- a/linux/drm_vm.h
+++ b/linux/drm_vm.h
@@ -510,7 +510,7 @@ int DRM(mmap)(struct file *filp, struct vm_area_struct *vma)
 	if (map->size != vma->vm_end - vma->vm_start) return -EINVAL;
 
 	if (!capable(CAP_SYS_ADMIN) && (map->flags & _DRM_READ_ONLY)) {
-		vma->vm_flags &= (VM_READ | VM_MAYREAD);
+		vma->vm_flags &= ~(VM_WRITE | VM_MAYWRITE);
 #if defined(__i386__) || defined(__x86_64__)
 		pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW;
 #else