2 * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
3 * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
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8 * the rights to use, copy, modify, merge, publish, distribute, sub license,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
25 #include <linux/config.h>
28 #include "savage_drm.h"
29 #include "savage_drv.h"
31 #define DRIVER_AUTHOR "John Zhao, S3 Graphics Inc."
33 #define DRIVER_NAME "savage"
34 #define DRIVER_DESC "Savage4 Family"
35 #define DRIVER_DATE "20011023"
37 #define DRIVER_MAJOR 1
38 #define DRIVER_MINOR 0
39 #define DRIVER_PATCHLEVEL 0
41 /* Currently Savage4 not implement DMA */
42 /* mark off by Jiayo Hsu, Oct. 23, 2001*/
45 #if SAVAGE_CMD_DMA /* Check the 3D driver, and we need to fix this anyway */
47 #define DRIVER_IOCTLS \
48 [DRM_IOCTL_NR(DRM_IOCTL_SAVAGE_ALLOC_CONTINUOUS_MEM)] \
49 = {savage_alloc_continuous_mem,1,0},\
50 [DRM_IOCTL_NR( DRM_IOCTL_SAVAGE_GET_PHYSICS_ADDRESS)] \
51 = {savage_get_physics_address,1,0},\
52 [DRM_IOCTL_NR(DRM_IOCTL_SAVAGE_FREE_CONTINUOUS_MEM)] \
53 = {savage_free_cont_mem,1,0}
55 int savage_alloc_continuous_mem(struct inode *inode, struct file *filp,
56 unsigned int cmd, unsigned long arg)
58 drm_savage_alloc_cont_mem_t cont_mem;
59 unsigned long size,addr;
66 drm_file_t *priv = filp->private_data;
67 drm_device_t *dev = priv->dev;
71 if (copy_from_user(&cont_mem,(drm_savage_alloc_cont_mem_t *)arg,sizeof(cont_mem)))
74 map = DRM(alloc)( sizeof(*map), DRM_MEM_MAPS );
78 /*check the parameters*/
79 if (cont_mem.size <= 0 )
82 size = cont_mem.type * cont_mem.size;
83 printk("[drm]JTLIsize = %lu\n",size);
85 ret = (void *)__get_free_pages(GFP_KERNEL, get_order(size));
88 printk("Kalloc error\n");
92 /*set the reserverd flag so that the remap_page_range can map these page*/
93 for(i=0,p=virt_to_page(ret);i< size /PAGE_SIZE; i++,p++)
96 cont_mem.phyaddress = virt_to_bus(ret);
97 cont_mem.location = DRM_SAVAGE_MEM_LOCATION_PCI; /* pci only at present*/
100 /*Map the memory to user space*/
101 down_write(¤t->mm->mmap_sem);
102 addr=do_mmap(NULL,0,size,PROT_READ|PROT_WRITE,MAP_PRIVATE,cont_mem.phyaddress);
105 pgprot_val(flags)=_PAGE_PRESENT | _PAGE_RW |_PAGE_USER ;
106 if (remap_page_range(addr,cont_mem.phyaddress,size,flags))
108 up_write(¤t->mm->mmap_sem);
110 for(i=0,p=virt_to_page(ret);i< size /PAGE_SIZE; i++,p++)
111 ClearPageReserved(p);
113 cont_mem.linear = addr;
116 map->handle = ret; /* to distinguish with other*/
117 map->offset = cont_mem.phyaddress;
122 list = DRM(alloc)(sizeof(*list), DRM_MEM_MAPS);
124 DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
127 memset(list, 0, sizeof(*list));
130 down(&dev->struct_sem);
131 list_add(&list->head, &dev->maplist->head);
132 up(&dev->struct_sem);
134 if (copy_to_user((drm_savage_alloc_cont_mem_t *)arg,&cont_mem,sizeof(cont_mem)))
137 for(i=0,p=virt_to_page(ret);i< size /PAGE_SIZE; i++,p++)
138 atomic_set(&p->count,1);
143 int savage_get_physics_address(struct inode *inode, struct file *filp,
144 unsigned int cmd, unsigned long arg)
147 drm_savage_get_physcis_address_t req;
152 struct mm_struct *mm;
154 if (copy_from_user(&req,(drm_savage_get_physcis_address_t *)arg,sizeof(req)))
158 /*What kind of virtual address ?*/
159 if (buf >= (unsigned long)high_memory)
165 spin_lock(&mm->page_table_lock);
168 pgd=pgd_offset(mm,buf);
169 pmd=pmd_offset(pgd,buf);
170 pte=pte_offset_map(pmd,buf);
172 if (!pte_present(*pte))
175 req.p_address = ((pte_val(*pte) &PAGE_MASK) |( buf&(PAGE_SIZE-1)));
177 if (copy_to_user((drm_savage_get_physcis_address_t *)arg,&req,sizeof(req)))
182 /*free the continuous memory*/
183 int savage_free_cont_mem(struct inode *inode, struct file *filp,
184 unsigned int cmd, unsigned long arg)
186 drm_savage_alloc_cont_mem_t cont_mem;
190 drm_file_t *priv = filp->private_data;
191 drm_device_t *dev = priv->dev;
193 struct list_head *list;
194 drm_map_list_t *r_list = NULL;
196 if (copy_from_user(&cont_mem,(drm_savage_alloc_cont_mem_t *)arg,sizeof(cont_mem)))
198 size = cont_mem.type * cont_mem.size;
202 /* find the map in the list */
203 list_for_each(list,&dev->maplist->head)
205 r_list = (drm_map_list_t *) list;
208 r_list->map->offset == cont_mem.phyaddress )
212 if(list == (&dev->maplist->head)) {
213 up(&dev->struct_sem);
218 DRM(free)(list, sizeof(*list), DRM_MEM_MAPS);
220 /*unmap the user space */
221 #ifdef DO_MUNMAP_4_ARGS
222 if ( do_munmap(current->mm,cont_mem.linear,size,1)!=0)
224 if ( do_munmap(current->mm,cont_mem.linear,size)!=0)
228 free_pages((unsigned long)map->handle, get_order(size));
232 #else /* SAVAGE_CMD_DMA */
233 #define DRIVER_IOCTLS
234 #endif /* SAVAGE_CMD_DMA */
238 #define DRIVER_IOCTLS \
239 [DRM_IOCTL_NR(DRM_IOCTL_DMA)] = { mga_dma_buffers, 1, 0 }, \
240 [DRM_IOCTL_NR(DRM_IOCTL_MGA_INIT)] = { mga_dma_init, 1, 1 }, \
241 [DRM_IOCTL_NR(DRM_IOCTL_MGA_FLUSH)] = { mga_dma_flush, 1, 0 }, \
242 [DRM_IOCTL_NR(DRM_IOCTL_MGA_RESET)] = { mga_dma_reset, 1, 0 }, \
243 [DRM_IOCTL_NR(DRM_IOCTL_MGA_SWAP)] = { mga_dma_swap, 1, 0 }, \
244 [DRM_IOCTL_NR(DRM_IOCTL_MGA_CLEAR)] = { mga_dma_clear, 1, 0 }, \
245 [DRM_IOCTL_NR(DRM_IOCTL_MGA_VERTEX)] = { mga_dma_vertex, 1, 0 }, \
246 [DRM_IOCTL_NR(DRM_IOCTL_MGA_INDICES)] = { mga_dma_indices, 1, 0 }, \
247 [DRM_IOCTL_NR(DRM_IOCTL_MGA_ILOAD)] = { mga_dma_iload, 1, 0 }, \
248 [DRM_IOCTL_NR(DRM_IOCTL_MGA_BLIT)] = { mga_dma_blit, 1, 0 },
251 #define __HAVE_COUNTERS 3
252 #define __HAVE_COUNTER6 _DRM_STAT_IRQ
253 #define __HAVE_COUNTER7 _DRM_STAT_PRIMARY
254 #define __HAVE_COUNTER8 _DRM_STAT_SECONDARY
256 #endif /* end #if 0 */
258 #include "drm_agpsupport.h"
259 #include "drm_auth.h"
260 #include "drm_bufs.h"
261 #include "drm_context.h"
263 #include "drm_drawable.h"
265 #include "drm_fops.h"
266 #include "drm_init.h"
267 #include "drm_ioctl.h"
269 #include "drm_lock.h"
270 #include "drm_memory.h"
271 #include "drm_proc.h"
273 #include "drm_stub.h"
274 #include "drm_scatter.h"