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/**************************************************************************
*
* Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., 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 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.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
*
**************************************************************************/
/*
* Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
*/
#include "drmP.h"
#include "i915_drm.h"
#include "i915_drv.h"
drm_ttm_backend_t *i915_create_ttm_backend_entry(drm_device_t * dev)
{
return drm_agp_init_ttm(dev, NULL);
}
int i915_fence_types(uint32_t buffer_flags, uint32_t * class, uint32_t * type)
{
*class = 0;
if (buffer_flags & (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE))
*type = 3;
else
*type = 1;
return 0;
}
int i915_invalidate_caches(drm_device_t * dev, uint32_t flags)
{
/*
* FIXME: Only emit once per batchbuffer submission.
*/
uint32_t flush_cmd = MI_NO_WRITE_FLUSH;
if (flags & DRM_BO_FLAG_READ)
flush_cmd |= MI_READ_FLUSH;
if (flags & DRM_BO_FLAG_EXE)
flush_cmd |= MI_EXE_FLUSH;
return i915_emit_mi_flush(dev, flush_cmd);
}
int i915_init_mem_type(drm_device_t *dev, uint32_t type,
drm_mem_type_manager_t *man)
{
switch(type) {
case DRM_BO_MEM_LOCAL:
man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE |
_DRM_FLAG_MEMTYPE_CACHED;
break;
case DRM_BO_MEM_TT:
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_CSELECT |
_DRM_FLAG_NEEDS_IOREMAP;
break;
case DRM_BO_MEM_PRIV0:
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;
break;
default:
DRM_ERROR("Unsupported memory type %u\n", (unsigned) type);
return -EINVAL;
}
return 0;
}
uint32_t i915_evict_flags(drm_device_t *dev, uint32_t type)
{
switch(type) {
case DRM_BO_MEM_LOCAL:
case DRM_BO_MEM_TT:
return DRM_BO_FLAG_MEM_LOCAL;
default:
return DRM_BO_FLAG_MEM_TT;
}
}
void i915_emit_copy_blit(drm_device_t *dev,
uint32_t src_offset,
uint32_t dst_offset,
uint32_t pages,
int direction)
{
uint32_t cur_pages;
uint32_t stride = PAGE_SIZE;
drm_i915_private_t *dev_priv = dev->dev_private;
RING_LOCALS;
if (!dev_priv)
return;
if (direction) {
stride = -stride;
src_offset += (pages - 1) << PAGE_SHIFT;
dst_offset += (pages - 1) << PAGE_SHIFT;
}
while(pages > 0) {
cur_pages = pages;
if (cur_pages > 2048)
cur_pages = 2048;
pages -= cur_pages;
BEGIN_LP_RING(8);
OUT_RING(XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
XY_SRC_COPY_BLT_WRITE_RGB);
OUT_RING((stride & 0xffff) | ( 0xcc << 16) | (1 << 24) |
(1 << 25));
OUT_RING(0);
OUT_RING((cur_pages << 16) | (PAGE_SIZE >> 2));
OUT_RING(dst_offset);
OUT_RING(0);
OUT_RING(stride & 0xffff);
OUT_RING(src_offset);
ADVANCE_LP_RING();
dst_offset += (cur_pages << PAGE_SHIFT)*(direction ? -1 : 1);
src_offset += (cur_pages << PAGE_SHIFT)*(direction ? -1 : 1);
}
return;
}
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