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
*) data
, sizeof(agp
));
81 AgpHeap
= via_mmInit(agp
.offset
, agp
.size
);
83 DRM_DEBUG("offset = %lu, size = %lu", (unsigned long)agp
.offset
, (unsigned long)agp
.size
);
88 /* fb memory management */
89 static memHeap_t
*FBHeap
= NULL
;
91 int via_fb_init(DRM_IOCTL_ARGS
)
95 DRM_COPY_FROM_USER_IOCTL(fb
, (drm_via_fb_t
*) data
, sizeof(fb
));
97 FBHeap
= via_mmInit(fb
.offset
, fb
.size
);
99 DRM_DEBUG("offset = %lu, size = %lu", (unsigned long)fb
.offset
, (unsigned long)fb
.size
);
104 int via_init_context(struct drm_device
*dev
, int context
)
108 for (i
= 0; i
< MAX_CONTEXT
; i
++)
109 if (global_ppriv
[i
].used
&&
110 (global_ppriv
[i
].context
== context
))
113 if (i
>= MAX_CONTEXT
) {
114 for (i
= 0; i
< MAX_CONTEXT
; i
++) {
115 if (!global_ppriv
[i
].used
) {
116 global_ppriv
[i
].context
= context
;
117 global_ppriv
[i
].used
= 1;
118 global_ppriv
[i
].sets
[0] = via_setInit();
119 global_ppriv
[i
].sets
[1] = via_setInit();
120 DRM_DEBUG("init allocation set, socket=%d,"
121 " context = %d\n", i
, context
);
126 if ((i
>= MAX_CONTEXT
) || (global_ppriv
[i
].sets
[0] == NULL
) ||
127 (global_ppriv
[i
].sets
[1] == NULL
)) {
135 int via_final_context(struct drm_device
*dev
, int context
)
138 drm_via_private_t
*dev_priv
= (drm_via_private_t
*) dev
->dev_private
;
140 for (i
= 0; i
< MAX_CONTEXT
; i
++)
141 if (global_ppriv
[i
].used
&&
142 (global_ppriv
[i
].context
== context
))
145 if (i
< MAX_CONTEXT
) {
150 DRM_DEBUG("find socket %d, context = %d\n", i
, context
);
153 set
= global_ppriv
[i
].sets
[0];
154 retval
= via_setFirst(set
, &item
);
156 DRM_DEBUG("free video memory 0x%lx\n", item
);
157 via_mmFreeMem((PMemBlock
) item
);
158 retval
= via_setNext(set
, &item
);
163 set
= global_ppriv
[i
].sets
[1];
164 retval
= via_setFirst(set
, &item
);
166 DRM_DEBUG("free agp memory 0x%lx\n", item
);
167 via_mmFreeMem((PMemBlock
) item
);
168 retval
= via_setNext(set
, &item
);
171 global_ppriv
[i
].used
= 0;
173 via_release_futex(dev_priv
, context
);
176 #if defined(__linux__)
177 /* Linux specific until context tracking code gets ported to BSD */
178 /* Last context, perform cleanup */
179 if (dev
->ctx_count
== 1 && dev
->dev_private
) {
180 DRM_DEBUG("Last Context\n");
182 drm_irq_uninstall(dev
);
184 via_cleanup_futex(dev_priv
);
185 via_do_cleanup_map(dev
);
192 int via_mem_alloc(DRM_IOCTL_ARGS
)
196 DRM_COPY_FROM_USER_IOCTL(mem
, (drm_via_mem_t
*) data
, sizeof(mem
));
200 if (via_fb_alloc(&mem
) < 0)
202 DRM_COPY_TO_USER_IOCTL((drm_via_mem_t
*) data
, mem
,
206 if (via_agp_alloc(&mem
) < 0)
208 DRM_COPY_TO_USER_IOCTL((drm_via_mem_t
*) data
, mem
,
216 static int via_fb_alloc(drm_via_mem_t
* mem
)
226 fb
.context
= mem
->context
;
228 block
= via_mmAllocMem(FBHeap
, fb
.size
, 5, 0);
230 fb
.offset
= block
->ofs
;
231 fb
.free
= (unsigned long)block
;
232 if (!add_alloc_set(fb
.context
, VIDEO
, fb
.free
)) {
233 DRM_DEBUG("adding to allocation set fails\n");
234 via_mmFreeMem((PMemBlock
) fb
.free
);
244 mem
->offset
= fb
.offset
;
245 mem
->index
= fb
.free
;
247 DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb
.size
,
253 static int via_agp_alloc(drm_via_mem_t
* mem
)
262 agp
.size
= mem
->size
;
263 agp
.context
= mem
->context
;
265 block
= via_mmAllocMem(AgpHeap
, agp
.size
, 5, 0);
267 agp
.offset
= block
->ofs
;
268 agp
.free
= (unsigned long)block
;
269 if (!add_alloc_set(agp
.context
, AGP
, agp
.free
)) {
270 DRM_DEBUG("adding to allocation set fails\n");
271 via_mmFreeMem((PMemBlock
) agp
.free
);
280 mem
->offset
= agp
.offset
;
281 mem
->index
= agp
.free
;
283 DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp
.size
,
284 (unsigned int)agp
.offset
);
288 int via_mem_free(DRM_IOCTL_ARGS
)
292 DRM_COPY_FROM_USER_IOCTL(mem
, (drm_via_mem_t
*) data
, sizeof(mem
));
297 if (via_fb_free(&mem
) == 0)
301 if (via_agp_free(&mem
) == 0)
309 static int via_fb_free(drm_via_mem_t
* mem
)
318 fb
.free
= mem
->index
;
319 fb
.context
= mem
->context
;
326 via_mmFreeMem((PMemBlock
) fb
.free
);
328 if (!del_alloc_set(fb
.context
, VIDEO
, fb
.free
)) {
332 DRM_DEBUG("free fb, free = %ld\n", fb
.free
);
337 static int via_agp_free(drm_via_mem_t
* mem
)
343 agp
.free
= mem
->index
;
344 agp
.context
= mem
->context
;
349 via_mmFreeMem((PMemBlock
) agp
.free
);
351 if (!del_alloc_set(agp
.context
, AGP
, agp
.free
)) {
355 DRM_DEBUG("free agp, free = %ld\n", agp
.free
);