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/**************************************************************************
*
* Copyright (c) 2007 Tungsten Graphics, Inc., Cedar Park, TX., USA,
* 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 the rights to use, copy, modify, merge, publish,
* distribute, sub license, 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
* THE COPYRIGHT HOLDERS, AUTHORS 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: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
*/
#include "drmP.h"
#include "via_drm.h"
#include "via_drv.h"
struct drm_ttm_backend *via_create_ttm_backend_entry(struct drm_device * dev)
{
return drm_agp_init_ttm(dev);
}
int via_fence_types(struct drm_buffer_object *bo, uint32_t * fclass,
uint32_t * type)
{
*type = 3;
return 0;
}
int via_invalidate_caches(struct drm_device * dev, uint64_t flags)
{
/*
* FIXME: Invalidate texture caches here.
*/
return 0;
}
static int via_vram_info(struct drm_device *dev,
unsigned long *offset,
unsigned long *size)
{
struct pci_dev *pdev = dev->pdev;
unsigned long flags;
int ret = -EINVAL;
int i;
for (i=0; i<6; ++i) {
flags = pci_resource_flags(pdev, i);
if ((flags & (IORESOURCE_MEM | IORESOURCE_PREFETCH)) ==
(IORESOURCE_MEM | IORESOURCE_PREFETCH)) {
ret = 0;
break;
}
}
if (ret) {
DRM_ERROR("Could not find VRAM PCI resource\n");
return ret;
}
*offset = pci_resource_start(pdev, i);
*size = pci_resource_end(pdev, i) - *offset + 1;
return 0;
}
int via_init_mem_type(struct drm_device * dev, uint32_t type,
struct drm_mem_type_manager * man)
{
switch (type) {
case DRM_BO_MEM_LOCAL:
/* System memory */
man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE |
_DRM_FLAG_MEMTYPE_CACHED;
man->drm_bus_maptype = 0;
break;
case DRM_BO_MEM_TT:
/* Dynamic agpgart memory */
if (!(drm_core_has_AGP(dev) && dev->agp)) {
DRM_ERROR("AGP is not enabled for memory type %u\n",
(unsigned)type);
return -EINVAL;
}
man->io_offset = dev->agp->agp_info.aper_base;
man->io_size = dev->agp->agp_info.aper_size * 1024 * 1024;
man->io_addr = NULL;
man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE | _DRM_FLAG_NEEDS_IOREMAP;
/* Only to get pte protection right. */
man->drm_bus_maptype = _DRM_AGP;
break;
case DRM_BO_MEM_VRAM:
/* "On-card" video ram */
man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE | _DRM_FLAG_NEEDS_IOREMAP;
man->drm_bus_maptype = _DRM_FRAME_BUFFER;
man->io_addr = NULL;
return via_vram_info(dev, &man->io_offset, &man->io_size);
break;
case DRM_BO_MEM_PRIV0:
/* Pre-bound agpgart memory */
if (!(drm_core_has_AGP(dev) && dev->agp)) {
DRM_ERROR("AGP is not enabled for memory type %u\n",
(unsigned)type);
return -EINVAL;
}
man->io_offset = dev->agp->agp_info.aper_base;
man->io_size = dev->agp->agp_info.aper_size * 1024 * 1024;
man->io_addr = NULL;
man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE |
_DRM_FLAG_MEMTYPE_FIXED | _DRM_FLAG_NEEDS_IOREMAP;
man->drm_bus_maptype = _DRM_AGP;
break;
default:
DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
return -EINVAL;
}
return 0;
}
uint32_t via_evict_mask(struct drm_buffer_object *bo)
{
switch (bo->mem.mem_type) {
case DRM_BO_MEM_LOCAL:
case DRM_BO_MEM_TT:
return DRM_BO_FLAG_MEM_LOCAL; /* Evict TT to local */
case DRM_BO_MEM_PRIV0: /* Evict pre-bound AGP to TT */
return DRM_BO_MEM_TT;
case DRM_BO_MEM_VRAM:
if (bo->mem.num_pages > 128)
return DRM_BO_MEM_TT;
else
return DRM_BO_MEM_LOCAL;
default:
return DRM_BO_MEM_LOCAL;
}
}
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