2 * Copyright 2006 Tungsten Graphics Inc., Bismarck, ND., USA.
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 * 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.
25 * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
33 #define VIA_MM_ALIGN_SHIFT 4
34 #define VIA_MM_ALIGN_MASK ( (1 << VIA_MM_ALIGN_SHIFT) - 1)
36 int via_agp_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
38 drm_via_agp_t *agp = data;
39 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
42 mutex_lock(&dev->struct_mutex);
43 ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_AGP, 0,
44 agp->size >> VIA_MM_ALIGN_SHIFT);
47 DRM_ERROR("AGP memory manager initialisation error\n");
48 mutex_unlock(&dev->struct_mutex);
52 dev_priv->agp_initialized = 1;
53 dev_priv->agp_offset = agp->offset;
54 mutex_unlock(&dev->struct_mutex);
56 DRM_DEBUG("offset = %u, size = %u\n", agp->offset, agp->size);
60 int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
62 drm_via_fb_t *fb = data;
63 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
66 mutex_lock(&dev->struct_mutex);
67 ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_VIDEO, 0,
68 fb->size >> VIA_MM_ALIGN_SHIFT);
71 DRM_ERROR("VRAM memory manager initialisation error\n");
72 mutex_unlock(&dev->struct_mutex);
76 dev_priv->vram_initialized = 1;
77 dev_priv->vram_offset = fb->offset;
79 mutex_unlock(&dev->struct_mutex);
80 DRM_DEBUG("offset = %u, size = %u\n", fb->offset, fb->size);
86 int via_final_context(struct drm_device *dev, int context)
88 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
90 via_release_futex(dev_priv, context);
92 #if defined(__linux__)
93 /* Linux specific until context tracking code gets ported to BSD */
94 /* Last context, perform cleanup */
95 if (dev->ctx_count == 1 && dev->dev_private) {
96 DRM_DEBUG("Last Context\n");
98 drm_irq_uninstall(dev);
99 via_cleanup_futex(dev_priv);
100 via_do_cleanup_map(dev);
106 void via_lastclose(struct drm_device *dev)
108 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
113 mutex_lock(&dev->struct_mutex);
114 drm_sman_cleanup(&dev_priv->sman);
115 dev_priv->vram_initialized = 0;
116 dev_priv->agp_initialized = 0;
117 mutex_unlock(&dev->struct_mutex);
120 int via_mem_alloc(struct drm_device *dev, void *data,
121 struct drm_file *file_priv)
123 drm_via_mem_t *mem = data;
125 struct drm_memblock_item *item;
126 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
127 unsigned long tmpSize;
129 if (mem->type > VIA_MEM_AGP) {
130 DRM_ERROR("Unknown memory type allocation\n");
133 mutex_lock(&dev->struct_mutex);
134 if (0 == ((mem->type == VIA_MEM_VIDEO) ? dev_priv->vram_initialized :
135 dev_priv->agp_initialized)) {
137 ("Attempt to allocate from uninitialized memory manager.\n");
138 mutex_unlock(&dev->struct_mutex);
142 tmpSize = (mem->size + VIA_MM_ALIGN_MASK) >> VIA_MM_ALIGN_SHIFT;
143 item = drm_sman_alloc(&dev_priv->sman, mem->type, tmpSize, 0,
144 (unsigned long)file_priv);
145 mutex_unlock(&dev->struct_mutex);
147 mem->offset = ((mem->type == VIA_MEM_VIDEO) ?
148 dev_priv->vram_offset : dev_priv->agp_offset) +
150 offset(item->mm, item->mm_info) << VIA_MM_ALIGN_SHIFT);
151 mem->index = item->user_hash.key;
156 DRM_DEBUG("Video memory allocation failed\n");
163 int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv)
165 drm_via_private_t *dev_priv = dev->dev_private;
166 drm_via_mem_t *mem = data;
169 mutex_lock(&dev->struct_mutex);
170 ret = drm_sman_free_key(&dev_priv->sman, mem->index);
171 mutex_unlock(&dev->struct_mutex);
172 DRM_DEBUG("free = 0x%lx\n", mem->index);
178 void via_reclaim_buffers_locked(struct drm_device * dev,
179 struct drm_file *file_priv)
181 drm_via_private_t *dev_priv = dev->dev_private;
183 mutex_lock(&dev->struct_mutex);
184 if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)file_priv)) {
185 mutex_unlock(&dev->struct_mutex);
189 if (dev->driver->dma_quiescent) {
190 dev->driver->dma_quiescent(dev);
193 drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)file_priv);
194 mutex_unlock(&dev->struct_mutex);