Split declarations/definitions in drm_scatter.h into drm_sg.h/drm_sg_tmp.h

    respectively. Splited the work out of the ioctls and renamed (with the
    _ioctl prefix). Added some more documentation. Did the same for
    drm_sgpsupport.h.

1 files changed, 0 insertions, 451 deletions

diff --git a/linux-core/drm_agpsupport.c b/linux-core/drm_agpsupport.c
deleted file mode 100644
index 81850593..00000000
--- a/linux-core/drm_agpsupport.c
+++ /dev/null
@@ -1,451 +0,0 @@
-/**
- * \file drm_agpsupport.h 
- * DRM support for AGP/GART backend
- *    
- * \author Rickard E. (Rik) Faith <faith@valinux.com>
- * \author Gareth Hughes <gareth@valinux.com>
- */
-
-/*
- * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
- * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#define __NO_VERSION__
-#include "drmP.h"
-#include <linux/module.h>
-
-#if __REALLY_HAVE_AGP
-
-
-#define DRM_AGP_GET (drm_agp_t *)inter_module_get("drm_agp")
-#define DRM_AGP_PUT inter_module_put("drm_agp")
-
-/**
- * Pointer to the drm_agp_t structure made available by the agpgart module.
- */
-static const drm_agp_t *drm_agp = NULL;
-
-/**
- * AGP information ioctl.
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg pointer to a (output) drm_agp_info structure.
- * \return zero on success or a negative number on failure.
- *
- * Verifies the AGP device has been initialized and acquired and fills in the
- * drm_agp_info structure with the information in drm_agp_head::agp_info.
- */
-int DRM(agp_info)(struct inode *inode, struct file *filp,
-		  unsigned int cmd, unsigned long arg)
-{
-	drm_file_t	 *priv	 = filp->private_data;
-	drm_device_t	 *dev	 = priv->dev;
-	agp_kern_info    *kern;
-	drm_agp_info_t   info;
-
-	if (!dev->agp || !dev->agp->acquired || !drm_agp->copy_info)
-		return -EINVAL;
-
-	kern                   = &dev->agp->agp_info;
-	info.agp_version_major = kern->version.major;
-	info.agp_version_minor = kern->version.minor;
-	info.mode              = kern->mode;
-	info.aperture_base     = kern->aper_base;
-	info.aperture_size     = kern->aper_size * 1024 * 1024;
-	info.memory_allowed    = kern->max_memory << PAGE_SHIFT;
-	info.memory_used       = kern->current_memory << PAGE_SHIFT;
-	info.id_vendor         = kern->device->vendor;
-	info.id_device         = kern->device->device;
-
-	if (copy_to_user((drm_agp_info_t *)arg, &info, sizeof(info)))
-		return -EFAULT;
-	return 0;
-}
-
-/**
- * Acquire the AGP device (ioctl).
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg user argument.
- * \return zero on success or a negative number on failure. 
- *
- * Verifies the AGP device hasn't been acquired before and calls
- * drm_agp->acquire().
- */
-int DRM(agp_acquire)(struct inode *inode, struct file *filp,
-		     unsigned int cmd, unsigned long arg)
-{
-	drm_file_t	 *priv	 = filp->private_data;
-	drm_device_t	 *dev	 = priv->dev;
-	int              retcode;
-
-	if (!dev->agp || dev->agp->acquired || !drm_agp->acquire)
-		return -EINVAL;
-	if ((retcode = drm_agp->acquire())) return retcode;
-	dev->agp->acquired = 1;
-	return 0;
-}
-
-/**
- * Release the AGP device (ioctl).
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg user argument.
- * \return zero on success or a negative number on failure.
- *
- * Verifies the AGP device has been acquired and calls drm_agp->release().
- */
-int DRM(agp_release)(struct inode *inode, struct file *filp,
-		     unsigned int cmd, unsigned long arg)
-{
-	drm_file_t	 *priv	 = filp->private_data;
-	drm_device_t	 *dev	 = priv->dev;
-
-	if (!dev->agp || !dev->agp->acquired || !drm_agp->release)
-		return -EINVAL;
-	drm_agp->release();
-	dev->agp->acquired = 0;
-	return 0;
-
-}
-
-/**
- * Release the AGP device.
- *
- * Calls drm_agp->release().
- */
-void DRM(agp_do_release)(void)
-{
-	if (drm_agp->release) drm_agp->release();
-}
-
-/**
- * Enable the AGP bus.
- * 
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg pointer to a drm_agp_mode structure.
- * \return zero on success or a negative number on failure.
- *
- * Verifies the AGP device has been acquired but not enabled, and calls
- * drm_agp->enable().
- */
-int DRM(agp_enable)(struct inode *inode, struct file *filp,
-		    unsigned int cmd, unsigned long arg)
-{
-	drm_file_t	 *priv	 = filp->private_data;
-	drm_device_t	 *dev	 = priv->dev;
-	drm_agp_mode_t   mode;
-
-	if (!dev->agp || !dev->agp->acquired || !drm_agp->enable)
-		return -EINVAL;
-
-	if (copy_from_user(&mode, (drm_agp_mode_t *)arg, sizeof(mode)))
-		return -EFAULT;
-
-	dev->agp->mode    = mode.mode;
-	drm_agp->enable(mode.mode);
-	dev->agp->base    = dev->agp->agp_info.aper_base;
-	dev->agp->enabled = 1;
-	return 0;
-}
-
-/**
- * Allocate AGP memory.
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg pointer to a drm_agp_buffer structure.
- * \return zero on success or a negative number on failure.
- * 
- * Verifies the AGP device is present and has been acquired, allocates the
- * memory via alloc_agp() and creates a drm_agp_mem entry for it.
- */
-int DRM(agp_alloc)(struct inode *inode, struct file *filp,
-		   unsigned int cmd, unsigned long arg)
-{
-	drm_file_t	 *priv	 = filp->private_data;
-	drm_device_t	 *dev	 = priv->dev;
-	drm_agp_buffer_t request;
-	drm_agp_mem_t    *entry;
-	agp_memory       *memory;
-	unsigned long    pages;
-	u32 		 type;
-
-	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)))
-		return -ENOMEM;
-
-   	memset(entry, 0, sizeof(*entry));
-
-	pages = (request.size + PAGE_SIZE - 1) / PAGE_SIZE;
-	type = (u32) request.type;
-
-	if (!(memory = DRM(alloc_agp)(pages, type))) {
-		DRM(free)(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
-		return -ENOMEM;
-	}
-
-	entry->handle    = (unsigned long)memory->key;
-	entry->memory    = memory;
-	entry->bound     = 0;
-	entry->pages     = pages;
-	entry->prev      = NULL;
-	entry->next      = dev->agp->memory;
-	if (dev->agp->memory) dev->agp->memory->prev = entry;
-	dev->agp->memory = entry;
-
-	request.handle   = entry->handle;
-        request.physical = memory->physical;
-
-	if (copy_to_user((drm_agp_buffer_t *)arg, &request, sizeof(request))) {
-		dev->agp->memory       = entry->next;
-		dev->agp->memory->prev = NULL;
-		DRM(free_agp)(memory, pages);
-		DRM(free)(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
-		return -EFAULT;
-	}
-	return 0;
-}
-
-/**
- * Search for the AGP memory entry associated with a handle.
- *
- * \param dev DRM device structure.
- * \param handle AGP memory handle.
- * \return pointer to the drm_agp_mem structure associated with \p handle.
- * 
- * Walks through drm_agp_head::memory until finding a matching handle.
- */
-static drm_agp_mem_t *DRM(agp_lookup_entry)(drm_device_t *dev,
-					    unsigned long handle)
-{
-	drm_agp_mem_t *entry;
-
-	for (entry = dev->agp->memory; entry; entry = entry->next) {
-		if (entry->handle == handle) return entry;
-	}
-	return NULL;
-}
-
-/**
- * Unbind AGP memory from the GATT (ioctl).
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg pointer to a drm_agp_binding structure.
- * \return zero on success or a negative number on failure.
- *
- * Verifies the AGP device is present and acquired, looks-up the AGP memory
- * entry and passes it to the unbind_agp() function.
- */
-int DRM(agp_unbind)(struct inode *inode, struct file *filp,
-		    unsigned int cmd, unsigned long arg)
-{
-	drm_file_t	  *priv	 = filp->private_data;
-	drm_device_t	  *dev	 = priv->dev;
-	drm_agp_binding_t request;
-	drm_agp_mem_t     *entry;
-	int ret;
-
-	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;
-	ret = DRM(unbind_agp)(entry->memory);
-	if (ret == 0)
-	    entry->bound = 0;
-	return ret;
-}
-
-/**
- * Bind AGP memory into the GATT (ioctl)
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg pointer to a drm_agp_binding structure.
- * \return zero on success or a negative number on failure.
- *
- * Verifies the AGP device is present and has been acquired and that no memory
- * is currently bound into the GATT. Looks-up the AGP memory entry and passes
- * it to bind_agp() function.
- */
-int DRM(agp_bind)(struct inode *inode, struct file *filp,
-		  unsigned int cmd, unsigned long arg)
-{
-	drm_file_t	  *priv	 = filp->private_data;
-	drm_device_t	  *dev	 = priv->dev;
-	drm_agp_binding_t request;
-	drm_agp_mem_t     *entry;
-	int               retcode;
-	int               page;
-
-	if (!dev->agp || !dev->agp->acquired || !drm_agp->bind_memory)
-		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;
-	page = (request.offset + PAGE_SIZE - 1) / PAGE_SIZE;
-	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);
-	return 0;
-}
-
-/**
- * Free AGP memory (ioctl).
- *
- * \param inode device inode.
- * \param filp file pointer.
- * \param cmd command.
- * \param arg pointer to a drm_agp_buffer structure.
- * \return zero on success or a negative number on failure.
- *
- * Verifies the AGP device is present and has been acquired and looks up the
- * AGP memory entry. If the memory it's currently bound, unbind it via
- * unbind_agp(). Frees it via free_agp() as well as the entry itself
- * and unlinks from the doubly linked list it's inserted in.
- */
-int DRM(agp_free)(struct inode *inode, struct file *filp,
-		  unsigned int cmd, unsigned long arg)
-{
-	drm_file_t	 *priv	 = filp->private_data;
-	drm_device_t	 *dev	 = priv->dev;
-	drm_agp_buffer_t request;
-	drm_agp_mem_t    *entry;
-
-	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->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;
-}
-
-/**
- * Initialize the AGP resources.
- *
- * \return pointer to a drm_agp_head structure.
- *
- * Gets the drm_agp_t structure which is made available by the agpgart module
- * via the inter_module_* functions. Creates and initializes a drm_agp_head
- * structure.
- */
-drm_agp_head_t *DRM(agp_init)(void)
-{
-	drm_agp_head_t *head         = NULL;
-
-	drm_agp = DRM_AGP_GET;
-	if (drm_agp) {
-		if (!(head = DRM(alloc)(sizeof(*head), DRM_MEM_AGPLISTS)))
-			return NULL;
-		memset((void *)head, 0, sizeof(*head));
-		drm_agp->copy_info(&head->agp_info);
-		if (head->agp_info.chipset == NOT_SUPPORTED) {
-			DRM(free)(head, sizeof(*head), DRM_MEM_AGPLISTS);
-			return NULL;
-		}
-		head->memory = NULL;
-#if LINUX_VERSION_CODE <= 0x020408
-		head->cant_use_aperture = 0;
-		head->page_mask = ~(0xfff);
-#else
-		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;
-}
-
-/**
- * Free the AGP resources.
- *
- * Releases the pointer in ::drm_agp.
- */
-void DRM(agp_uninit)(void)
-{
-	DRM_AGP_PUT;
-	drm_agp = NULL;
-}
-
-/** Calls drm_agp->allocate_memory() */
-agp_memory *DRM(agp_allocate_memory)(size_t pages, u32 type)
-{
-	if (!drm_agp->allocate_memory) return NULL;
-	return drm_agp->allocate_memory(pages, type);
-}
-
-/** Calls drm_agp->free_memory() */
-int DRM(agp_free_memory)(agp_memory *handle)
-{
-	if (!handle || !drm_agp->free_memory) return 0;
-	drm_agp->free_memory(handle);
-	return 1;
-}
-
-/** Calls drm_agp->bind_memory() */
-int DRM(agp_bind_memory)(agp_memory *handle, off_t start)
-{
-	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)(agp_memory *handle)
-{
-	if (!handle || !drm_agp->unbind_memory) return -EINVAL;
-	return drm_agp->unbind_memory(handle);
-}
-
-#endif /* __REALLY_HAVE_AGP */