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