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/* $OpenBSD: radeon_mem.c,v 1.13 2011/06/02 18:22:00 weerd Exp $ */
/*
* Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved.
*
* The Weather Channel (TM) funded Tungsten Graphics to develop the
* initial release of the Radeon 8500 driver under the XFree86 license.
* This notice must be preserved.
*
* 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
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* PRECISION INSIGHT 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.
*
* Authors:
* Keith Whitwell <keith@tungstengraphics.com>
*/
#include "drmP.h"
#include "drm.h"
#include "radeon_drm.h"
#include "radeon_drv.h"
struct drm_heap *radeon_get_heap(drm_radeon_private_t *, int);
/* IOCTL HANDLERS */
struct drm_heap *
radeon_get_heap(drm_radeon_private_t * dev_priv, int region)
{
switch (region) {
case RADEON_MEM_REGION_GART:
return (&dev_priv->gart_heap);
case RADEON_MEM_REGION_FB:
return (&dev_priv->fb_heap);
default:
return (NULL);
}
}
int
radeon_mem_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
drm_radeon_mem_alloc_t *alloc = data;
struct drm_heap *heap;
struct drm_mem *block;
if (dev_priv == NULL) {
DRM_ERROR("called with no initialization\n");
return (EINVAL);
}
if ((heap = radeon_get_heap(dev_priv, alloc->region)) == NULL)
return (EFAULT);
/*
* Make things easier on ourselves: all allocations at least
* 4k aligned.
*/
if (alloc->alignment < 12)
alloc->alignment = 12;
if ((block = drm_alloc_block(heap, alloc->size, alloc->alignment,
file_priv)) == NULL)
return (ENOMEM);
return (copyout(&block->start, alloc->region_offset, sizeof(int)));
}
int
radeon_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
drm_radeon_mem_free_t *memfree = data;
struct drm_heap *heap;
if (dev_priv == NULL) {
DRM_ERROR("called with no initialization\n");
return (EINVAL);
}
heap = radeon_get_heap(dev_priv, memfree->region);
if (heap == NULL)
return (EFAULT);
return (drm_mem_free(heap, memfree->region_offset, file_priv));
}
int
radeon_mem_init_heap(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
drm_radeon_private_t *dev_priv = dev->dev_private;
drm_radeon_mem_init_heap_t *initheap = data;
struct drm_heap *heap;
if (dev_priv == NULL) {
DRM_ERROR("called with no initialization\n");
return (EINVAL);
}
/* Make sure it's valid and initialised */
if ((heap = radeon_get_heap(dev_priv, initheap->region)) == NULL)
return (EFAULT);
return (drm_init_heap(heap, initheap->start, initheap->size));
}
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