renesas/drm.git - libdrm, cloned from git://anongit.freedesktop.org/mesa/drm

Age	Commit message (Expand)	Author
2007-11-22	drm: cleanup drm_regman.c coding style	Dave Airlie
2007-11-06	Add missing drm_regman.c file.	Thomas Hellstrom

/* 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 <faith@valinux.com> * Gareth Hughes <gareth@valinux.com> * */ #include "drmP.h" int DRM(agp_info)(DRM_IOCTL_ARGS) { DRM_DEVICE; struct agp_info *kern; drm_agp_info_t info; if (!dev->agp || !dev->agp->acquired) return EINVAL; kern = &dev->agp->info; agp_get_info(dev->agp->agpdev, kern); info.agp_version_major = 1; info.agp_version_minor = 0; info.mode = kern->ai_mode; info.aperture_base = kern->ai_aperture_base; info.aperture_size = kern->ai_aperture_size; info.memory_allowed = kern->ai_memory_allowed; info.memory_used = kern->ai_memory_used; info.id_vendor = kern->ai_devid & 0xffff; info.id_device = kern->ai_devid >> 16; *(drm_agp_info_t *) data = info; return 0; } int DRM(agp_acquire)(DRM_IOCTL_ARGS) { DRM_DEVICE; int retcode; if (!dev->agp || dev->agp->acquired) return EINVAL; retcode = agp_acquire(dev->agp->agpdev); if (retcode) return retcode; dev->agp->acquired = 1; return 0; } int DRM(agp_release)(DRM_IOCTL_ARGS) { DRM_DEVICE; if (!dev->agp || !dev->agp->acquired) return EINVAL; agp_release(dev->agp->agpdev); dev->agp->acquired = 0; return 0; } void DRM(agp_do_release)(void) { device_t agpdev; agpdev = DRM_AGP_FIND_DEVICE(); if (agpdev) agp_release(agpdev); } int DRM(agp_enable)(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_agp_mode_t mode; if (!dev->agp || !dev->agp->acquired) return EINVAL; mode = *(drm_agp_mode_t *) data; dev->agp->mode = mode.mode; agp_enable(dev->agp->agpdev, mode.mode); dev->agp->base = dev->agp->info.ai_aperture_base; dev->agp->enabled = 1; return 0; } int DRM(agp_alloc)(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_agp_buffer_t request; drm_agp_mem_t *entry; void *handle; unsigned long pages; u_int32_t type; struct agp_memory_info info; if (!dev->agp || !dev->agp->acquired) return EINVAL; request = *(drm_agp_buffer_t *) data; if (!(entry = DRM(alloc)(sizeof(*entry), DRM_MEM_AGPLISTS))) return ENOMEM; bzero(entry, sizeof(*entry)); pages = (request.size + PAGE_SIZE - 1) / PAGE_SIZE; type = (u_int32_t) request.type; if (!(handle = DRM(alloc_agp)(pages, type))) { DRM(free)(entry, sizeof(*entry), DRM_MEM_AGPLISTS); return ENOMEM; } entry->handle = handle; 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; agp_memory_info(dev->agp->agpdev, entry->handle, &info); request.handle = (unsigned long) entry->handle; request.physical = info.ami_physical; *(drm_agp_buffer_t *) data = request; return 0; } static drm_agp_mem_t * DRM(agp_lookup_entry)(drm_device_t *dev, void *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)(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_agp_binding_t request; drm_agp_mem_t *entry; int retcode; if (!dev->agp || !dev->agp->acquired) return EINVAL; request = *(drm_agp_binding_t *) data; if (!(entry = DRM(agp_lookup_entry)(dev, (void *) request.handle))) return EINVAL; if (!entry->bound) return EINVAL; retcode=DRM(unbind_agp)(entry->handle); if (!retcode) { entry->bound=0; return 0; } else return retcode; } int DRM(agp_bind)(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_agp_binding_t request; drm_agp_mem_t *entry; int retcode; int page; DRM_DEBUG("agp_bind, page_size=%x\n", PAGE_SIZE); if (!dev->agp || !dev->agp->acquired) return EINVAL; request = *(drm_agp_binding_t *) data; if (!(entry = DRM(agp_lookup_entry)(dev, (void *) request.handle))) return EINVAL; if (entry->bound) return EINVAL; page = (request.offset + PAGE_SIZE - 1) / PAGE_SIZE; if ((retcode = DRM(bind_agp)(entry->handle, page))) return retcode; entry->bound = dev->agp->base + (page << PAGE_SHIFT); return 0; } int DRM(agp_free)(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_agp_buffer_t request; drm_agp_mem_t *entry; if (!dev->agp || !dev->agp->acquired) return EINVAL; request = *(drm_agp_buffer_t *) data; if (!(entry = DRM(agp_lookup_entry)(dev, (void*) request.handle))) return EINVAL; if (entry->bound) DRM(unbind_agp)(entry->handle); 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->handle, entry->pages); DRM(free)(entry, sizeof(*entry), DRM_MEM_AGPLISTS); return 0; } drm_agp_head_t *DRM(agp_init)(void) { device_t agpdev; drm_agp_head_t *head = NULL; int agp_available = 1; agpdev = DRM_AGP_FIND_DEVICE(); if (!agpdev) agp_available = 0; DRM_DEBUG("agp_available = %d\n", agp_available); if (agp_available) { if (!(head = DRM(alloc)(sizeof(*head), DRM_MEM_AGPLISTS))) return NULL; bzero((void *)head, sizeof(*head)); head->agpdev = agpdev; agp_get_info(agpdev, &head->info); head->memory = NULL; DRM_INFO("AGP at 0x%08lx %dMB\n", (long)head->info.ai_aperture_base, (int)(head->info.ai_aperture_size >> 20)); } return head; } void DRM(agp_uninit)(void) { /* FIXME: What goes here */ } agp_memory *DRM(agp_allocate_memory)(size_t pages, u32 type) { device_t agpdev; agpdev = DRM_AGP_FIND_DEVICE(); if (!agpdev) return NULL; return agp_alloc_memory(agpdev, type, pages << AGP_PAGE_SHIFT); } int DRM(agp_free_memory)(agp_memory *handle) { device_t agpdev; agpdev = DRM_AGP_FIND_DEVICE(); if (!agpdev || !handle) return 0; agp_free_memory(agpdev, handle); return 1; } int DRM(agp_bind_memory)(agp_memory *handle, off_t start) { device_t agpdev; agpdev = DRM_AGP_FIND_DEVICE(); if (!agpdev || !handle) return EINVAL; return agp_bind_memory(agpdev, handle, start * PAGE_SIZE); } int DRM(agp_unbind_memory)(agp_memory *handle) { device_t agpdev; agpdev = DRM_AGP_FIND_DEVICE(); if (!agpdev || !handle) return EINVAL; return agp_unbind_memory(agpdev, handle); }