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 * Authors: Thomas Hellstr�m <thomas-at-tungstengraphics-dot-com> 26 */ 27 28#include "drmP.h" 29#include "via_drm.h" 30#include "via_drv.h" 31#include "drm_sman.h" 32 33#define VIA_MM_ALIGN_SHIFT 4 34#define VIA_MM_ALIGN_MASK ( (1 << VIA_MM_ALIGN_SHIFT) - 1) 35 36int via_agp_init(DRM_IOCTL_ARGS) 37{ 38 DRM_DEVICE; 39 drm_via_agp_t agp; 40 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; 41 int ret; 42 43 DRM_COPY_FROM_USER_IOCTL(agp, (drm_via_agp_t __user *) data, 44 sizeof(agp)); 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); 48 49 if (ret) { 50 DRM_ERROR("AGP memory manager initialisation error\n"); 51 mutex_unlock(&dev->struct_mutex); 52 return ret; 53 } 54 55 dev_priv->agp_initialized = 1; 56 dev_priv->agp_offset = agp.offset; 57 mutex_unlock(&dev->struct_mutex); 58 59 DRM_DEBUG("offset = %u, size = %u", agp.offset, agp.size); 60 return 0; 61} 62 63int via_fb_init(DRM_IOCTL_ARGS) 64{ 65 DRM_DEVICE; 66 drm_via_fb_t fb; 67 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; 68 int ret; 69 70 DRM_COPY_FROM_USER_IOCTL(fb, (drm_via_fb_t __user *) data, sizeof(fb)); 71 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); 75 76 if (ret) { 77 DRM_ERROR("VRAM memory manager initialisation error\n"); 78 mutex_unlock(&dev->struct_mutex); 79 return ret; 80 } 81 82 dev_priv->vram_initialized = 1; 83 dev_priv->vram_offset = fb.offset; 84 85 mutex_unlock(&dev->struct_mutex); 86 DRM_DEBUG("offset = %u, size = %u", fb.offset, fb.size); 87 88 return 0; 89 90} 91 92int via_final_context(struct drm_device *dev, int context) 93{ 94 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; 95 96 via_release_futex(dev_priv, context); 97 98 /* Linux specific until context tracking code gets ported to BSD */ 99 /* Last context, perform cleanup */ 100 if (dev->ctx_count == 1 && dev->dev_private) { 101 DRM_DEBUG("Last Context\n"); 102 if (dev->irq) 103 drm_irq_uninstall(dev); 104 via_cleanup_futex(dev_priv); 105 via_do_cleanup_map(dev); 106 } 107 return 1; 108} 109 110void via_lastclose(struct drm_device *dev) 111{ 112 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; 113 114 if (!dev_priv) 115 return; 116 117 mutex_lock(&dev->struct_mutex); 118 drm_sman_cleanup(&dev_priv->sman); 119 dev_priv->vram_initialized = 0; 120 dev_priv->agp_initialized = 0; 121 mutex_unlock(&dev->struct_mutex); 122} 123 124int via_mem_alloc(DRM_IOCTL_ARGS) 125{ 126 DRM_DEVICE; 127 128 drm_via_mem_t mem; 129 int retval = 0; 130 drm_memblock_item_t *item; 131 drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; 132 unsigned long tmpSize; 133 134 DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t __user *) data, 135 sizeof(mem)); 136 137 if (mem.type > VIA_MEM_AGP) { 138 DRM_ERROR("Unknown memory type allocation\n"); 139 return DRM_ERR(EINVAL); 140 } 141 mutex_lock(&dev->struct_mutex); 142 if (0 == ((mem.type == VIA_MEM_VIDEO) ? dev_priv->vram_initialized : 143 dev_priv->agp_initialized)) { 144 DRM_ERROR 145 ("Attempt to allocate from uninitialized memory manager.\n"); 146 mutex_unlock(&dev->struct_mutex); 147 return DRM_ERR(EINVAL); 148 } 149 150 tmpSize = (mem.size + VIA_MM_ALIGN_MASK) >> VIA_MM_ALIGN_SHIFT; 151 item = drm_sman_alloc(&dev_priv->sman, mem.type, tmpSize, 0, 152 (unsigned long)priv); 153 mutex_unlock(&dev->struct_mutex); 154 if (item) { 155 mem.offset = ((mem.type == VIA_MEM_VIDEO) ? 156 dev_priv->vram_offset : dev_priv->agp_offset) + 157 (item->mm-> 158 offset(item->mm, item->mm_info) << VIA_MM_ALIGN_SHIFT); 159 mem.index = item->user_hash.key; 160 } else { 161 mem.offset = 0; 162 mem.size = 0; 163 mem.index = 0; 164 DRM_DEBUG("Video memory allocation failed\n"); 165 retval = DRM_ERR(ENOMEM); 166 } 167 DRM_COPY_TO_USER_IOCTL((drm_via_mem_t __user *) data, mem, sizeof(mem)); 168 169 return retval; 170} 171 172int via_mem_free(DRM_IOCTL_ARGS) 173{ 174 DRM_DEVICE; 175 drm_via_private_t *dev_priv = dev->dev_private; 176 drm_via_mem_t mem; 177 int ret; 178 179 DRM_COPY_FROM_USER_IOCTL(mem, (drm_via_mem_t __user *) data, 180 sizeof(mem)); 181 182 mutex_lock(&dev->struct_mutex); 183 ret = drm_sman_free_key(&dev_priv->sman, mem.index); 184 mutex_unlock(&dev->struct_mutex); 185 DRM_DEBUG("free = 0x%lx\n", mem.index); 186 187 return ret; 188} 189 190 191void via_reclaim_buffers_locked(drm_device_t * dev, struct file *filp) 192{ 193 drm_via_private_t *dev_priv = dev->dev_private; 194 drm_file_t *priv = filp->private_data; 195 196 mutex_lock(&dev->struct_mutex); 197 if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)priv)) { 198 mutex_unlock(&dev->struct_mutex); 199 return; 200 } 201 202 if (dev->driver->dma_quiescent) { 203 dev->driver->dma_quiescent(dev); 204 } 205 206 drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)priv); 207 mutex_unlock(&dev->struct_mutex); 208 return; 209} 210