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
40int 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
60int 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
82int 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
101void 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
113int 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
153int 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
166void 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