diff options
Diffstat (limited to 'linux-core/savage_drv.c')
-rw-r--r-- | linux-core/savage_drv.c | 256 |
1 files changed, 23 insertions, 233 deletions
diff --git a/linux-core/savage_drv.c b/linux-core/savage_drv.c index e8591689..fff5b68a 100644 --- a/linux-core/savage_drv.c +++ b/linux-core/savage_drv.c @@ -1,6 +1,7 @@ -/* - * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved. - * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved. +/* savage_drv.c -- Savage driver for Linux + * + * Copyright 2004 Felix Kuehling + * 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"), @@ -13,13 +14,13 @@ * 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 NON-INFRINGEMENT. IN NO EVENT SHALL - * VIA, S3 GRAPHICS, 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. + * 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 + * NON-INFRINGEMENT. IN NO EVENT SHALL FELIX KUEHLING 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. */ #include <linux/config.h> @@ -27,220 +28,6 @@ #include "savage_drm.h" #include "savage_drv.h" -#define DRIVER_AUTHOR "John Zhao, S3 Graphics Inc." - -#define DRIVER_NAME "savage" -#define DRIVER_DESC "Savage4 Family" -#define DRIVER_DATE "20011023" - -#define DRIVER_MAJOR 1 -#define DRIVER_MINOR 0 -#define DRIVER_PATCHLEVEL 0 - -/* Currently Savage4 not implement DMA */ -/* mark off by Jiayo Hsu, Oct. 23, 2001*/ - - -#if SAVAGE_CMD_DMA /* Check the 3D driver, and we need to fix this anyway */ - -int savage_alloc_continuous_mem(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) -{ - drm_savage_alloc_cont_mem_t cont_mem; - unsigned long size,addr; - void * ret; - int i; - mem_map_t *p; - pgprot_t flags; - - /* add to list */ - drm_file_t *priv = filp->private_data; - drm_device_t *dev = priv->dev; - drm_map_t *map; - drm_map_list_t *list; - - if (copy_from_user(&cont_mem,(drm_savage_alloc_cont_mem_t *)arg,sizeof(cont_mem))) - return -EFAULT; - - map = savage_alloc)( sizeof(*map), DRM_MEM_MAPS ); - if ( !map ) - return -ENOMEM; - - /*check the parameters*/ - if (cont_mem.size <= 0 ) - return -EINVAL; - - size = cont_mem.type * cont_mem.size; - printk("[drm]JTLIsize = %lu\n",size); - - ret = (void *)__get_free_pages(GFP_KERNEL, get_order(size)); - if (ret == NULL) - { - printk("Kalloc error\n"); - return 0; - } - - /*set the reserverd flag so that the remap_page_range can map these page*/ - for(i=0,p=virt_to_page(ret);i< size /PAGE_SIZE; i++,p++) - SetPageReserved(p); - - cont_mem.phyaddress = virt_to_bus(ret); - cont_mem.location = DRM_SAVAGE_MEM_LOCATION_PCI; /* pci only at present*/ - - - /*Map the memory to user space*/ - down_write(¤t->mm->mmap_sem); - addr=do_mmap(NULL,0,size,PROT_READ|PROT_WRITE,MAP_PRIVATE,cont_mem.phyaddress); - if (addr<=0) - return -EFAULT; - pgprot_val(flags)=_PAGE_PRESENT | _PAGE_RW |_PAGE_USER ; - if (remap_page_range(addr,cont_mem.phyaddress,size,flags)) - return -EFAULT; - up_write(¤t->mm->mmap_sem); - - for(i=0,p=virt_to_page(ret);i< size /PAGE_SIZE; i++,p++) - ClearPageReserved(p); - - cont_mem.linear = addr; - - /*map list*/ - map->handle = ret; /* to distinguish with other*/ - map->offset = cont_mem.phyaddress; - map->size = size; - map->mtrr=-1; - /*map-flags,type??*/ - - list = savage_alloc)(sizeof(*list), DRM_MEM_MAPS); - if(!list) { - savage_free)(map, sizeof(*map), DRM_MEM_MAPS); - return -EINVAL; - } - memset(list, 0, sizeof(*list)); - list->map = map; - - down(&dev->struct_sem); - list_add(&list->head, &dev->maplist->head); - up(&dev->struct_sem); - - if (copy_to_user((drm_savage_alloc_cont_mem_t *)arg,&cont_mem,sizeof(cont_mem))) - return -EFAULT; - - for(i=0,p=virt_to_page(ret);i< size /PAGE_SIZE; i++,p++) - atomic_set(&p->count,1); - - return 1;/*success*/ -} - -int savage_get_physics_address(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) -{ - - drm_savage_get_physcis_address_t req; - unsigned long buf; - pgd_t *pgd; - pmd_t *pmd; - pte_t *pte; - struct mm_struct *mm; - - if (copy_from_user(&req,(drm_savage_get_physcis_address_t *)arg,sizeof(req))) - return -EFAULT; - buf = req.v_address; - - /*What kind of virtual address ?*/ - if (buf >= (unsigned long)high_memory) - mm = &init_mm; - else - mm = current->mm; - -#ifdef LINUX_24 - spin_lock(&mm->page_table_lock); -#endif - - pgd=pgd_offset(mm,buf); - pmd=pmd_offset(pgd,buf); - pte=pte_offset_map(pmd,buf); - - if (!pte_present(*pte)) - return -EFAULT; - - req.p_address = ((pte_val(*pte) &PAGE_MASK) |( buf&(PAGE_SIZE-1))); - - if (copy_to_user((drm_savage_get_physcis_address_t *)arg,&req,sizeof(req))) - return -EFAULT; - return 1; -} - -/*free the continuous memory*/ -int savage_free_cont_mem(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) -{ - drm_savage_alloc_cont_mem_t cont_mem; - unsigned long size; - - /*map list */ - drm_file_t *priv = filp->private_data; - drm_device_t *dev = priv->dev; - drm_map_t *map; - struct list_head *list; - drm_map_list_t *r_list = NULL; - - if (copy_from_user(&cont_mem,(drm_savage_alloc_cont_mem_t *)arg,sizeof(cont_mem))) - return -EFAULT; - size = cont_mem.type * cont_mem.size; - if (size <= 0) - return -EINVAL; - - /* find the map in the list */ - list_for_each(list,&dev->maplist->head) - { - r_list = (drm_map_list_t *) list; - - if(r_list->map && - r_list->map->offset == cont_mem.phyaddress ) - break; - } - /*find none*/ - if(list == (&dev->maplist->head)) { - up(&dev->struct_sem); - return -EINVAL; - } - map = r_list->map; - list_del(list); - savage_free)(list, sizeof(*list), DRM_MEM_MAPS); - - /*unmap the user space */ -#ifdef DO_MUNMAP_4_ARGS - if ( do_munmap(current->mm,cont_mem.linear,size,1)!=0) -#else - if ( do_munmap(current->mm,cont_mem.linear,size)!=0) -#endif - return -EFAULT; - /*free the page*/ - free_pages((unsigned long)map->handle, get_order(size)); - - return 1; -} -#else /* SAVAGE_CMD_DMA */ -#define DRIVER_IOCTLS -#endif /* SAVAGE_CMD_DMA */ - -#if 0 - -#define DRIVER_IOCTLS \ - [DRM_IOCTL_NR(DRM_IOCTL_DMA)] = { mga_dma_buffers, 1, 0 }, \ - [DRM_IOCTL_NR(DRM_IOCTL_MGA_INIT)] = { mga_dma_init, 1, 1 }, \ - [DRM_IOCTL_NR(DRM_IOCTL_MGA_FLUSH)] = { mga_dma_flush, 1, 0 }, \ - [DRM_IOCTL_NR(DRM_IOCTL_MGA_RESET)] = { mga_dma_reset, 1, 0 }, \ - [DRM_IOCTL_NR(DRM_IOCTL_MGA_SWAP)] = { mga_dma_swap, 1, 0 }, \ - [DRM_IOCTL_NR(DRM_IOCTL_MGA_CLEAR)] = { mga_dma_clear, 1, 0 }, \ - [DRM_IOCTL_NR(DRM_IOCTL_MGA_VERTEX)] = { mga_dma_vertex, 1, 0 }, \ - [DRM_IOCTL_NR(DRM_IOCTL_MGA_INDICES)] = { mga_dma_indices, 1, 0 }, \ - [DRM_IOCTL_NR(DRM_IOCTL_MGA_ILOAD)] = { mga_dma_iload, 1, 0 }, \ - [DRM_IOCTL_NR(DRM_IOCTL_MGA_BLIT)] = { mga_dma_blit, 1, 0 }, - - -#endif /* end #if 0 */ - #include "drm_pciids.h" static int postinit( struct drm_device *dev, unsigned long flags ) @@ -275,24 +62,27 @@ static struct pci_device_id pciidlist[] = { }; static drm_ioctl_desc_t ioctls[] = { -#if SAVAGE_CMD_DMA /* Check the 3D driver, and we need to fix this anyway */ - [DRM_IOCTL_NR(DRM_SAVAGE_ALLOC_CONTINUOUS_MEM)] = {savage_alloc_continuous_mem, 1, 0}, - [DRM_IOCTL_NR(DRM_SAVAGE_GET_PHYSICS_ADDRESS)] = {savage_get_physics_address, 1, 0}, - [DRM_IOCTL_NR(DRM_SAVAGE_FREE_CONTINUOUS_MEM)] = {savage_free_cont_mem, 1, 0}, -#endif + [DRM_IOCTL_NR(DRM_SAVAGE_BCI_INIT)] = {savage_bci_init, 1, 1}, + [DRM_IOCTL_NR(DRM_SAVAGE_BCI_CMDBUF)] = {savage_bci_cmdbuf, 1, 0}, + [DRM_IOCTL_NR(DRM_SAVAGE_BCI_EVENT_EMIT)] = {savage_bci_event_emit, 1, 0}, + [DRM_IOCTL_NR(DRM_SAVAGE_BCI_EVENT_WAIT)] = {savage_bci_event_wait, 1, 0}, }; static int probe(struct pci_dev *pdev, const struct pci_device_id *ent); static struct drm_driver driver = { - .driver_features = DRIVER_USE_AGP | DRIVER_USE_MTRR, - .reclaim_buffers = drm_core_reclaim_buffers, - .get_map_ofs = drm_core_get_map_ofs, - .get_reg_ofs = drm_core_get_reg_ofs, + .driver_features = + DRIVER_USE_AGP | DRIVER_USE_MTRR | + DRIVER_HAVE_DMA | DRIVER_PCI_DMA, + .dev_priv_size = sizeof(drm_savage_buf_priv_t), .preinit = savage_preinit, .postinit = postinit, + .reclaim_buffers = savage_reclaim_buffers, + .get_map_ofs = drm_core_get_map_ofs, + .get_reg_ofs = drm_core_get_reg_ofs, .version = version, .ioctls = ioctls, .num_ioctls = DRM_ARRAY_SIZE(ioctls), + .dma_ioctl = savage_bci_buffers, .fops = { .owner = THIS_MODULE, .open = drm_open, |