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Diffstat (limited to 'linux/drm_agpsupport.h')
| -rw-r--r-- | linux/drm_agpsupport.h | 451 |
1 files changed, 0 insertions, 451 deletions
diff --git a/linux/drm_agpsupport.h b/linux/drm_agpsupport.h deleted file mode 100644 index 81850593..00000000 --- a/linux/drm_agpsupport.h +++ /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 */ |