1 /*-
2 * Copyright 2006 Tungsten Graphics Inc., Bismarck, ND., USA.
3 * All rights reserved.
4 *
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:
11 *
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
14 * of the Software.
15 *
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 * THE AUTHORS OR COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR 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.
23 */
24
25 /*
26 * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
27 */
28
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31
32 #include "dev/drm/drmP.h"
33 #include "dev/drm/via_drm.h"
34 #include "dev/drm/via_drv.h"
35 #include "dev/drm/drm_sman.h"
36
37 #define VIA_MM_ALIGN_SHIFT 4
38 #define VIA_MM_ALIGN_MASK ( (1 << VIA_MM_ALIGN_SHIFT) - 1)
39
via_agp_init(struct drm_device * dev,void * data,struct drm_file * file_priv)40 int via_agp_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
41 {
42 drm_via_agp_t *agp = data;
43 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
44 int ret;
45
46 ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_AGP, 0,
47 agp->size >> VIA_MM_ALIGN_SHIFT);
48 if (ret) {
49 DRM_ERROR("AGP memory manager initialisation error\n");
50 return ret;
51 }
52
53 dev_priv->agp_initialized = 1;
54 dev_priv->agp_offset = agp->offset;
55
56 DRM_DEBUG("offset = %u, size = %u\n", agp->offset, agp->size);
57 return 0;
58 }
59
via_fb_init(struct drm_device * dev,void * data,struct drm_file * file_priv)60 int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
61 {
62 drm_via_fb_t *fb = data;
63 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
64 int ret;
65
66 ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_VIDEO, 0,
67 fb->size >> VIA_MM_ALIGN_SHIFT);
68 if (ret) {
69 DRM_ERROR("VRAM memory manager initialisation error\n");
70 return ret;
71 }
72
73 dev_priv->vram_initialized = 1;
74 dev_priv->vram_offset = fb->offset;
75
76 DRM_DEBUG("offset = %u, size = %u\n", fb->offset, fb->size);
77
78 return 0;
79
80 }
81
via_final_context(struct drm_device * dev,int context)82 int via_final_context(struct drm_device *dev, int context)
83 {
84 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
85
86 via_release_futex(dev_priv, context);
87
88 #ifdef __linux__
89 /* Linux specific until context tracking code gets ported to BSD */
90 /* Last context, perform cleanup */
91 if (dev->ctx_count == 1 && dev->dev_private) {
92 DRM_DEBUG("Last Context\n");
93 drm_irq_uninstall(dev);
94 via_cleanup_futex(dev_priv);
95 via_do_cleanup_map(dev);
96 }
97 #endif
98 return 1;
99 }
100
via_lastclose(struct drm_device * dev)101 void via_lastclose(struct drm_device *dev)
102 {
103 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
104
105 if (!dev_priv)
106 return;
107
108 drm_sman_cleanup(&dev_priv->sman);
109 dev_priv->vram_initialized = 0;
110 dev_priv->agp_initialized = 0;
111 }
112
via_mem_alloc(struct drm_device * dev,void * data,struct drm_file * file_priv)113 int via_mem_alloc(struct drm_device *dev, void *data,
114 struct drm_file *file_priv)
115 {
116 drm_via_mem_t *mem = data;
117 int retval = 0;
118 struct drm_memblock_item *item;
119 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
120 unsigned long tmpSize;
121
122 if (mem->type > VIA_MEM_AGP) {
123 DRM_ERROR("Unknown memory type allocation\n");
124 return -EINVAL;
125 }
126 if (0 == ((mem->type == VIA_MEM_VIDEO) ? dev_priv->vram_initialized :
127 dev_priv->agp_initialized)) {
128 DRM_ERROR
129 ("Attempt to allocate from uninitialized memory manager.\n");
130 return -EINVAL;
131 }
132
133 tmpSize = (mem->size + VIA_MM_ALIGN_MASK) >> VIA_MM_ALIGN_SHIFT;
134 item = drm_sman_alloc(&dev_priv->sman, mem->type, tmpSize, 0,
135 (unsigned long)file_priv);
136 if (item) {
137 mem->offset = ((mem->type == VIA_MEM_VIDEO) ?
138 dev_priv->vram_offset : dev_priv->agp_offset) +
139 (item->mm->
140 offset(item->mm, item->mm_info) << VIA_MM_ALIGN_SHIFT);
141 mem->index = item->user_hash.key;
142 } else {
143 mem->offset = 0;
144 mem->size = 0;
145 mem->index = 0;
146 DRM_DEBUG("Video memory allocation failed\n");
147 retval = -ENOMEM;
148 }
149
150 return retval;
151 }
152
via_mem_free(struct drm_device * dev,void * data,struct drm_file * file_priv)153 int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv)
154 {
155 drm_via_private_t *dev_priv = dev->dev_private;
156 drm_via_mem_t *mem = data;
157 int ret;
158
159 ret = drm_sman_free_key(&dev_priv->sman, mem->index);
160 DRM_DEBUG("free = 0x%lx\n", mem->index);
161
162 return ret;
163 }
164
165
via_reclaim_buffers_locked(struct drm_device * dev,struct drm_file * file_priv)166 void via_reclaim_buffers_locked(struct drm_device * dev,
167 struct drm_file *file_priv)
168 {
169 drm_via_private_t *dev_priv = dev->dev_private;
170
171 if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)file_priv))
172 return;
173
174 if (dev->driver->dma_quiescent)
175 dev->driver->dma_quiescent(dev);
176
177 drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)file_priv);
178
179 return;
180 }
181