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"),
7 * to deal in the Software without restriction, including without limitation
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,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
30 #define MAX_CONTEXT 100
35 set_t
*sets
[2]; /* 0 for frame buffer, 1 for AGP , 2 for System */
38 static via_context_t global_ppriv
[MAX_CONTEXT
];
40 static int via_agp_alloc(drm_via_mem_t
* mem
);
41 static int via_agp_free(drm_via_mem_t
* mem
);
42 static int via_fb_alloc(drm_via_mem_t
* mem
);
43 static int via_fb_free(drm_via_mem_t
* mem
);
45 static int add_alloc_set(int context
, int type
, unsigned int val
)
49 for (i
= 0; i
< MAX_CONTEXT
; i
++) {
50 if (global_ppriv
[i
].used
&& global_ppriv
[i
].context
== context
) {
51 retval
= via_setAdd(global_ppriv
[i
].sets
[type
], val
);
59 static int del_alloc_set(int context
, int type
, unsigned int val
)
63 for (i
= 0; i
< MAX_CONTEXT
; i
++)
64 if (global_ppriv
[i
].used
&& global_ppriv
[i
].context
== context
) {
65 retval
= via_setDel(global_ppriv
[i
].sets
[type
], val
);
72 /* agp memory management */
73 static memHeap_t
*AgpHeap
= NULL
;
75 int via_agp_init(DRM_IOCTL_ARGS
)
79 DRM_COPY_FROM_USER_IOCTL(agp
, (drm_via_agp_t __user
*) data
,
82 AgpHeap
= via_mmInit(agp
.offset
, agp
.size
);
84 DRM_DEBUG("offset = %lu, size = %lu", (unsigned long)agp
.offset
, (unsigned long)agp
.size
);
89 /* fb memory management */
90 static memHeap_t
*FBHeap
= NULL
;
92 int via_fb_init(DRM_IOCTL_ARGS
)
96 DRM_COPY_FROM_USER_IOCTL(fb
, (drm_via_fb_t __user
*) data
, sizeof(fb
));
98 FBHeap
= via_mmInit(fb
.offset
, fb
.size
);
100 DRM_DEBUG("offset = %lu, size = %lu", (unsigned long)fb
.offset
, (unsigned long)fb
.size
);
105 int via_init_context(struct drm_device
*dev
, int context
)
109 for (i
= 0; i
< MAX_CONTEXT
; i
++)
110 if (global_ppriv
[i
].used
&&
111 (global_ppriv
[i
].context
== context
))
114 if (i
>= MAX_CONTEXT
) {
115 for (i
= 0; i
< MAX_CONTEXT
; i
++) {
116 if (!global_ppriv
[i
].used
) {
117 global_ppriv
[i
].context
= context
;
118 global_ppriv
[i
].used
= 1;
119 global_ppriv
[i
].sets
[0] = via_setInit();
120 global_ppriv
[i
].sets
[1] = via_setInit();
121 DRM_DEBUG("init allocation set, socket=%d,"
122 " context = %d\n", i
, context
);
127 if ((i
>= MAX_CONTEXT
) || (global_ppriv
[i
].sets
[0] == NULL
) ||
128 (global_ppriv
[i
].sets
[1] == NULL
)) {
136 int via_final_context(struct drm_device
*dev
, int context
)
139 drm_via_private_t
*dev_priv
= (drm_via_private_t
*) dev
->dev_private
;
141 for (i
= 0; i
< MAX_CONTEXT
; i
++)
142 if (global_ppriv
[i
].used
&&
143 (global_ppriv
[i
].context
== context
))
146 if (i
< MAX_CONTEXT
) {
151 DRM_DEBUG("find socket %d, context = %d\n", i
, context
);
154 set
= global_ppriv
[i
].sets
[0];
155 retval
= via_setFirst(set
, &item
);
157 DRM_DEBUG("free video memory 0x%lx\n", item
);
158 via_mmFreeMem((PMemBlock
) item
);
159 retval
= via_setNext(set
, &item
);
164 set
= global_ppriv
[i
].sets
[1];
165 retval
= via_setFirst(set
, &item
);
167 DRM_DEBUG("free agp memory 0x%lx\n", item
);
168 via_mmFreeMem((PMemBlock
) item
);
169 retval
= via_setNext(set
, &item
);
172 global_ppriv
[i
].used
= 0;
174 via_release_futex(dev_priv
, context
);
177 #if defined(__linux__)
178 /* Linux specific until context tracking code gets ported to BSD */
179 /* Last context, perform cleanup */
180 if (dev
->ctx_count
== 1 && dev
->dev_private
) {
181 DRM_DEBUG("Last Context\n");
183 drm_irq_uninstall(dev
);
185 via_cleanup_futex(dev_priv
);
186 via_do_cleanup_map(dev
);
193 int via_mem_alloc(DRM_IOCTL_ARGS
)
197 DRM_COPY_FROM_USER_IOCTL(mem
, (drm_via_mem_t __user
*) data
,
202 if (via_fb_alloc(&mem
) < 0)
204 DRM_COPY_TO_USER_IOCTL((drm_via_mem_t __user
*) data
, mem
,
208 if (via_agp_alloc(&mem
) < 0)
210 DRM_COPY_TO_USER_IOCTL((drm_via_mem_t __user
*) data
, mem
,
218 static int via_fb_alloc(drm_via_mem_t
* mem
)
228 fb
.context
= mem
->context
;
230 block
= via_mmAllocMem(FBHeap
, fb
.size
, 5, 0);
232 fb
.offset
= block
->ofs
;
233 fb
.free
= (unsigned long)block
;
234 if (!add_alloc_set(fb
.context
, VIDEO
, fb
.free
)) {
235 DRM_DEBUG("adding to allocation set fails\n");
236 via_mmFreeMem((PMemBlock
) fb
.free
);
246 mem
->offset
= fb
.offset
;
247 mem
->index
= fb
.free
;
249 DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb
.size
,
255 static int via_agp_alloc(drm_via_mem_t
* mem
)
264 agp
.size
= mem
->size
;
265 agp
.context
= mem
->context
;
267 block
= via_mmAllocMem(AgpHeap
, agp
.size
, 5, 0);
269 agp
.offset
= block
->ofs
;
270 agp
.free
= (unsigned long)block
;
271 if (!add_alloc_set(agp
.context
, AGP
, agp
.free
)) {
272 DRM_DEBUG("adding to allocation set fails\n");
273 via_mmFreeMem((PMemBlock
) agp
.free
);
282 mem
->offset
= agp
.offset
;
283 mem
->index
= agp
.free
;
285 DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp
.size
,
286 (unsigned int)agp
.offset
);
290 int via_mem_free(DRM_IOCTL_ARGS
)
294 DRM_COPY_FROM_USER_IOCTL(mem
, (drm_via_mem_t __user
*) data
,
300 if (via_fb_free(&mem
) == 0)
304 if (via_agp_free(&mem
) == 0)
312 static int via_fb_free(drm_via_mem_t
* mem
)
321 fb
.free
= mem
->index
;
322 fb
.context
= mem
->context
;
329 via_mmFreeMem((PMemBlock
) fb
.free
);
331 if (!del_alloc_set(fb
.context
, VIDEO
, fb
.free
)) {
335 DRM_DEBUG("free fb, free = %ld\n", fb
.free
);
340 static int via_agp_free(drm_via_mem_t
* mem
)
346 agp
.free
= mem
->index
;
347 agp
.context
= mem
->context
;
352 via_mmFreeMem((PMemBlock
) agp
.free
);
354 if (!del_alloc_set(agp
.context
, AGP
, agp
.free
)) {
358 DRM_DEBUG("free agp, free = %ld\n", agp
.free
);