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.
27 #include "via_context.h"
28 #include "via_ioctl.h"
31 #include "main/imports.h"
32 #include "main/simple_list.h"
33 #include <sys/ioctl.h>
36 via_alloc_draw_buffer(struct via_context
*vmesa
, struct via_renderbuffer
*buf
)
39 mem
.context
= vmesa
->hHWContext
;
41 mem
.type
= VIA_MEM_VIDEO
;
45 if (ioctl(vmesa
->driFd
, DRM_IOCTL_VIA_ALLOCMEM
, &mem
))
49 buf
->offset
= mem
.offset
;
50 buf
->map
= (char *)vmesa
->driScreen
->pFB
+ mem
.offset
;
51 buf
->index
= mem
.index
;
56 via_free_draw_buffer(struct via_context
*vmesa
, struct via_renderbuffer
*buf
)
62 mem
.context
= vmesa
->hHWContext
;
63 mem
.index
= buf
->index
;
64 mem
.type
= VIA_MEM_VIDEO
;
65 mem
.offset
= buf
->offset
;
68 ioctl(vmesa
->driFd
, DRM_IOCTL_VIA_FREEMEM
, &mem
);
74 via_alloc_dma_buffer(struct via_context
*vmesa
)
76 drm_via_dma_init_t init
;
78 vmesa
->dma
= (GLubyte
*) malloc(VIA_DMA_BUFSIZ
);
81 * Check whether AGP DMA has been initialized.
83 memset(&init
, 0, sizeof(init
));
84 init
.func
= VIA_DMA_INITIALIZED
;
87 ( 0 == drmCommandWrite(vmesa
->driFd
, DRM_VIA_DMA_INIT
,
88 &init
, sizeof(init
)));
89 if (VIA_DEBUG
& DEBUG_DMA
) {
91 fprintf(stderr
, "unichrome_dri.so: Using AGP.\n");
93 fprintf(stderr
, "unichrome_dri.so: Using PCI.\n");
96 return ((vmesa
->dma
) ? GL_TRUE
: GL_FALSE
);
100 via_free_dma_buffer(struct via_context
*vmesa
)
108 /* These functions now allocate and free the via_tex_buffer struct as well:
110 struct via_tex_buffer
*
111 via_alloc_texture(struct via_context
*vmesa
,
115 struct via_tex_buffer
*t
= CALLOC_STRUCT(via_tex_buffer
);
121 t
->memType
= memType
;
122 insert_at_tail(&vmesa
->tex_image_list
[memType
], t
);
124 if (t
->memType
== VIA_MEM_AGP
||
125 t
->memType
== VIA_MEM_VIDEO
) {
128 fb
.context
= vmesa
->hHWContext
;
130 fb
.type
= t
->memType
;
134 if (ioctl(vmesa
->driFd
, DRM_IOCTL_VIA_ALLOCMEM
, &fb
) != 0 ||
139 fprintf(stderr
, "offset %lx index %lx\n", fb
.offset
, fb
.index
);
141 t
->offset
= fb
.offset
;
144 if (t
->memType
== VIA_MEM_AGP
) {
145 t
->bufAddr
= (GLubyte
*)((unsigned long)vmesa
->viaScreen
->agpLinearStart
+
147 t
->texBase
= vmesa
->agpBase
+ fb
.offset
;
150 t
->bufAddr
= (GLubyte
*)((unsigned long)vmesa
->driScreen
->pFB
+ fb
.offset
);
151 t
->texBase
= fb
.offset
;
154 vmesa
->total_alloc
[t
->memType
] += t
->size
;
157 else if (t
->memType
== VIA_MEM_SYSTEM
) {
159 t
->bufAddr
= _mesa_malloc(t
->size
);
163 vmesa
->total_alloc
[t
->memType
] += t
->size
;
178 via_do_free_texture(struct via_context
*vmesa
, struct via_tex_buffer
*t
)
182 remove_from_list( t
);
184 vmesa
->total_alloc
[t
->memType
] -= t
->size
;
186 fb
.context
= vmesa
->hHWContext
;
188 fb
.offset
= t
->offset
;
189 fb
.type
= t
->memType
;
192 if (ioctl(vmesa
->driFd
, DRM_IOCTL_VIA_FREEMEM
, &fb
)) {
193 fprintf(stderr
, "via_free_texture fail\n");
200 /* Release textures which were potentially still being referenced by
201 * hardware at the time when they were originally freed.
204 via_release_pending_textures( struct via_context
*vmesa
)
206 struct via_tex_buffer
*s
, *tmp
;
208 foreach_s( s
, tmp
, &vmesa
->freed_tex_buffers
) {
209 if (!VIA_GEQ_WRAP(s
->lastUsed
, vmesa
->lastBreadcrumbRead
)) {
210 if (VIA_DEBUG
& DEBUG_TEXTURE
)
211 fprintf(stderr
, "%s: release tex sz %d lastUsed %x\n",
212 __FUNCTION__
, s
->size
, s
->lastUsed
);
213 via_do_free_texture(vmesa
, s
);
221 via_free_texture(struct via_context
*vmesa
, struct via_tex_buffer
*t
)
226 else if (t
->memType
== VIA_MEM_SYSTEM
) {
228 vmesa
->total_alloc
[t
->memType
] -= t
->size
;
229 _mesa_free(t
->bufAddr
);
232 else if (t
->index
&& viaCheckBreadcrumb(vmesa
, t
->lastUsed
)) {
233 via_do_free_texture( vmesa
, t
);
236 /* Close current breadcrumb so that we can free this eventually:
238 if (t
->lastUsed
== vmesa
->lastBreadcrumbWrite
)
239 viaEmitBreadcrumb(vmesa
);
241 move_to_tail( &vmesa
->freed_tex_buffers
, t
);