124 lines
3.6 KiB
C
124 lines
3.6 KiB
C
/****************************************************************************
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* Copyright (C) 2003-2006 by XGI Technology, Taiwan.
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*
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation on the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* XGI AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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***************************************************************************/
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#include "xgi_drv.h"
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#define XGI_FB_HEAP_START 0x1000000
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int xgi_alloc(struct xgi_info * info, struct xgi_mem_alloc * alloc,
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struct drm_file * filp)
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{
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struct drm_memblock_item *block;
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const char *const mem_name = (alloc->location == XGI_MEMLOC_LOCAL)
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? "on-card" : "GART";
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if ((alloc->location != XGI_MEMLOC_LOCAL)
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&& (alloc->location != XGI_MEMLOC_NON_LOCAL)) {
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DRM_ERROR("Invalid memory pool (0x%08x) specified.\n",
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alloc->location);
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return -EINVAL;
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}
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if ((alloc->location == XGI_MEMLOC_LOCAL)
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? !info->fb_heap_initialized : !info->pcie_heap_initialized) {
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DRM_ERROR("Attempt to allocate from uninitialized memory "
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"pool (0x%08x).\n", alloc->location);
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return -EINVAL;
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}
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mutex_lock(&info->dev->struct_mutex);
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block = drm_sman_alloc(&info->sman, alloc->location, alloc->size,
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0, (unsigned long) filp);
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mutex_unlock(&info->dev->struct_mutex);
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if (block == NULL) {
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alloc->size = 0;
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DRM_ERROR("%s memory allocation failed\n", mem_name);
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return -ENOMEM;
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} else {
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alloc->offset = (*block->mm->offset)(block->mm,
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block->mm_info);
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alloc->hw_addr = alloc->offset;
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alloc->index = block->user_hash.key;
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if (alloc->location == XGI_MEMLOC_NON_LOCAL) {
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alloc->hw_addr += info->pcie.base;
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}
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DRM_DEBUG("%s memory allocation succeeded: 0x%x\n",
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mem_name, alloc->offset);
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}
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return 0;
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}
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int xgi_alloc_ioctl(struct drm_device * dev, void * data,
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struct drm_file * filp)
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{
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struct xgi_info *info = dev->dev_private;
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return xgi_alloc(info, (struct xgi_mem_alloc *) data, filp);
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}
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int xgi_free(struct xgi_info * info, unsigned long index,
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struct drm_file * filp)
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{
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int err;
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mutex_lock(&info->dev->struct_mutex);
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err = drm_sman_free_key(&info->sman, index);
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mutex_unlock(&info->dev->struct_mutex);
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return err;
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}
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int xgi_free_ioctl(struct drm_device * dev, void * data,
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struct drm_file * filp)
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{
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struct xgi_info *info = dev->dev_private;
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return xgi_free(info, *(unsigned long *) data, filp);
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}
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int xgi_fb_heap_init(struct xgi_info * info)
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{
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int err;
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mutex_lock(&info->dev->struct_mutex);
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err = drm_sman_set_range(&info->sman, XGI_MEMLOC_LOCAL,
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XGI_FB_HEAP_START,
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info->fb.size - XGI_FB_HEAP_START);
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mutex_unlock(&info->dev->struct_mutex);
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info->fb_heap_initialized = (err == 0);
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return err;
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}
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