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(DRM_IOCTL_ARGS)
40 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
43 DRM_COPY_FROM_USER_IOCTL(agp, (drm_via_agp_t __user *) data,
45 mutex_lock(&dev->struct_mutex);
46 ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_AGP, 0,
47 agp.size >> VIA_MM_ALIGN_SHIFT);
50 DRM_ERROR("AGP memory manager initialisation error\n");
51 mutex_unlock(&dev->struct_mutex);
55 dev_priv->agp_initialized = 1;
56 dev_priv->agp_offset = agp.offset;
57 mutex_unlock(&dev->struct_mutex);
59 DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size);
63 int via_fb_init(DRM_IOCTL_ARGS)
67 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
70 DRM_COPY_FROM_USER_IOCTL(fb, (drm_via_fb_t __user *) data, sizeof(fb));
72 mutex_lock(&dev->struct_mutex);
73 ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_VIDEO, 0,
74 fb.size >> VIA_MM_ALIGN_SHIFT);
77 DRM_ERROR("VRAM memory manager initialisation error\n");
78 mutex_unlock(&dev->struct_mutex);
82 dev_priv->vram_initialized = 1;
83 dev_priv->vram_offset = fb.offset;
85 mutex_unlock(&dev->struct_mutex);
86 DRM_DEBUG("offset = %u, size = %u", fb.offset, fb.size);
92 int via_final_context(struct drm_device *dev, int context)
94 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
96 via_release_futex(dev_priv, context);
98 #if defined(__linux__)
99 /* Linux specific until context tracking code gets ported to BSD */
100 /* Last context, perform cleanup */
101 if (dev->ctx_count == 1 && dev->dev_private) {
102 DRM_DEBUG("Last Context\n");
104 drm_irq_uninstall(dev);
105 via_cleanup_futex(dev_priv);
106 via_do_cleanup_map(dev);
112 void via_lastclose(struct drm_device *dev)
114 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
119 mutex_lock(&dev->struct_mutex);
120 drm_sman_cleanup(&dev_priv->sman);
121 dev_priv->vram_initialized = 0;
122 dev_priv->agp_initialized = 0;
123 mutex_unlock(&dev->struct_mutex);
126 int via_mem_alloc(DRM_IOCTL_ARGS)
132 drm_memblock_item_t *item;
133 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
134 unsigned long tmpSize;
136 DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t __user *) data,
139 if (mem.type > VIA_MEM_AGP) {
140 DRM_ERROR("Unknown memory type allocation\n");
141 return DRM_ERR(EINVAL);
143 mutex_lock(&dev->struct_mutex);
144 if (0 == ((mem.type == VIA_MEM_VIDEO) ? dev_priv->vram_initialized :
145 dev_priv->agp_initialized)) {
147 ("Attempt to allocate from uninitialized memory manager.\n");
148 mutex_unlock(&dev->struct_mutex);
149 return DRM_ERR(EINVAL);
152 tmpSize = (mem.size + VIA_MM_ALIGN_MASK) >> VIA_MM_ALIGN_SHIFT;
153 item = drm_sman_alloc(&dev_priv->sman, mem.type, tmpSize, 0,
154 (unsigned long)priv);
155 mutex_unlock(&dev->struct_mutex);
157 mem.offset = ((mem.type == VIA_MEM_VIDEO) ?
158 dev_priv->vram_offset : dev_priv->agp_offset) +
160 offset(item->mm, item->mm_info) << VIA_MM_ALIGN_SHIFT);
161 mem.index = item->user_hash.key;
166 DRM_DEBUG("Video memory allocation failed\n");
167 retval = DRM_ERR(ENOMEM);
169 DRM_COPY_TO_USER_IOCTL((drm_via_mem_t __user *) data, mem, sizeof(mem));
174 int via_mem_free(DRM_IOCTL_ARGS)
177 drm_via_private_t *dev_priv = dev->dev_private;
181 DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t __user *) data,
184 mutex_lock(&dev->struct_mutex);
185 ret = drm_sman_free_key(&dev_priv->sman, mem.index);
186 mutex_unlock(&dev->struct_mutex);
187 DRM_DEBUG("free = 0x%lx\n", mem.index);
193 void via_reclaim_buffers_locked(drm_device_t * dev, struct file *filp)
195 drm_via_private_t *dev_priv = dev->dev_private;
196 drm_file_t *priv = filp->private_data;
198 mutex_lock(&dev->struct_mutex);
199 if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)priv)) {
200 mutex_unlock(&dev->struct_mutex);
204 if (dev->driver->dma_quiescent) {
205 dev->driver->dma_quiescent(dev);
208 drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)priv);
209 mutex_unlock(&dev->struct_mutex);