From 360475376c5a597caf4a981c934a6b0d783fa94d Mon Sep 17 00:00:00 2001 From: Gareth Hughes Date: Thu, 15 Feb 2001 08:12:14 +0000 Subject: Merge mga-1-0-0-branch into trunk. --- linux/drm_agpsupport.h | 335 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 335 insertions(+) create mode 100644 linux/drm_agpsupport.h (limited to 'linux/drm_agpsupport.h') diff --git a/linux/drm_agpsupport.h b/linux/drm_agpsupport.h new file mode 100644 index 00000000..b070a59e --- /dev/null +++ b/linux/drm_agpsupport.h @@ -0,0 +1,335 @@ +/* drm_agpsupport.h -- DRM support for AGP/GART backend -*- linux-c -*- + * Created: Mon Dec 13 09:56:45 1999 by faith@precisioninsight.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. + * + * Author: + * Rickard E. (Rik) Faith + * Gareth Hughes + */ + +#define __NO_VERSION__ +#include "drmP.h" +#include + +#if __REALLY_HAVE_AGP + +#if LINUX_VERSION_CODE < 0x020400 +#include "agpsupport-pre24.h" +#else +#define DRM_AGP_GET (drm_agp_t *)inter_module_get("drm_agp") +#define DRM_AGP_PUT inter_module_put("drm_agp") +#endif + +static const drm_agp_t *drm_agp = NULL; + +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->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; +} + +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->acquired || !drm_agp->acquire) return -EINVAL; + if ((retcode = drm_agp->acquire())) return retcode; + dev->agp->acquired = 1; + return 0; +} + +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->acquired || !drm_agp->release) return -EINVAL; + drm_agp->release(); + dev->agp->acquired = 0; + return 0; + +} + +void DRM(agp_do_release)(void) +{ + if (drm_agp->release) drm_agp->release(); +} + +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->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; +} + +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->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->memory; + 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; +} + +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; +} + +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; + + if (!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; + return DRM(unbind_agp)(entry->memory); +} + +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->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; +} + +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->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; +} + +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; + switch (head->agp_info.chipset) { + case INTEL_GENERIC: head->chipset = "Intel"; break; + case INTEL_LX: head->chipset = "Intel 440LX"; break; + case INTEL_BX: head->chipset = "Intel 440BX"; break; + case INTEL_GX: head->chipset = "Intel 440GX"; break; + case INTEL_I810: head->chipset = "Intel i810"; break; + +#if LINUX_VERSION_CODE >= 0x020400 + case INTEL_I840: head->chipset = "Intel i840"; break; +#endif + + case VIA_GENERIC: head->chipset = "VIA"; break; + case VIA_VP3: head->chipset = "VIA VP3"; break; + case VIA_MVP3: head->chipset = "VIA MVP3"; break; + +#if LINUX_VERSION_CODE >= 0x020400 + case VIA_MVP4: head->chipset = "VIA MVP4"; break; + case VIA_APOLLO_KX133: head->chipset = "VIA Apollo KX133"; + break; + case VIA_APOLLO_KT133: head->chipset = "VIA Apollo KT133"; + break; +#endif + + case VIA_APOLLO_PRO: head->chipset = "VIA Apollo Pro"; + break; + case SIS_GENERIC: head->chipset = "SiS"; break; + case AMD_GENERIC: head->chipset = "AMD"; break; + case AMD_IRONGATE: head->chipset = "AMD Irongate"; break; + case ALI_GENERIC: head->chipset = "ALi"; break; + case ALI_M1541: head->chipset = "ALi M1541"; break; + default: head->chipset = "Unknown"; break; + } + DRM_INFO("AGP %d.%d on %s @ 0x%08lx %ZuMB\n", + head->agp_info.version.major, + head->agp_info.version.minor, + head->chipset, + head->agp_info.aper_base, + head->agp_info.aper_size); + } + return head; +} + +void DRM(agp_uninit)(void) +{ + DRM_AGP_PUT; + drm_agp = NULL; +} + +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); +} + +int DRM(agp_free_memory)(agp_memory *handle) +{ + if (!handle || !drm_agp->free_memory) return 0; + drm_agp->free_memory(handle); + return 1; +} + +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); +} + +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 */ -- cgit v1.2.3