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/*
* Copyright © 2012 Intel Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Benjamin Segovia <benjamin.segovia@intel.com>
*/
/**************************************************************************
*
* Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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 TUNGSTEN GRAPHICS 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 "intel/intel_batchbuffer.h"
#include "intel/intel_driver.h"
#include "cl_alloc.h"
#include "cl_utils.h"
#include <stdlib.h>
#include <string.h>
#include <assert.h>
LOCAL void
intel_batchbuffer_reset(intel_batchbuffer_t *batch, size_t sz)
{
if (batch->buffer != NULL) {
dri_bo_unreference(batch->buffer);
batch->buffer = NULL;
batch->last_bo = NULL;
}
batch->buffer = dri_bo_alloc(batch->intel->bufmgr,
"batch buffer",
sz,
64);
assert(batch->buffer);
dri_bo_map(batch->buffer, 1);
batch->map = (uint8_t*) batch->buffer->virtual;
batch->size = sz;
batch->ptr = batch->map;
batch->atomic = 0;
batch->last_bo = batch->buffer;
batch->enable_slm = 0;
}
LOCAL void
intel_batchbuffer_init(intel_batchbuffer_t *batch, intel_driver_t *intel)
{
assert(intel);
batch->intel = intel;
}
LOCAL void
intel_batchbuffer_terminate(intel_batchbuffer_t *batch)
{
assert(batch->buffer);
if (batch->map) {
dri_bo_unmap(batch->buffer);
batch->map = NULL;
}
dri_bo_unreference(batch->buffer);
batch->buffer = NULL;
}
LOCAL void
intel_batchbuffer_flush(intel_batchbuffer_t *batch)
{
uint32_t used = batch->ptr - batch->map;
int is_locked = batch->intel->locked;
if (used == 0)
return;
if ((used & 4) == 0) {
*(uint32_t*) batch->ptr = 0;
batch->ptr += 4;
}
*(uint32_t*)batch->ptr = MI_BATCH_BUFFER_END;
batch->ptr += 4;
dri_bo_unmap(batch->buffer);
used = batch->ptr - batch->map;
if (!is_locked)
intel_driver_lock_hardware(batch->intel);
int flag = I915_EXEC_RENDER;
if(batch->enable_slm) {
/* use the hard code here temp, must change to
* I915_EXEC_ENABLE_SLM when it drm accept the patch */
flag |= (1<<13);
}
drm_intel_gem_bo_context_exec(batch->buffer, batch->intel->ctx, used, flag);
if (!is_locked)
intel_driver_unlock_hardware(batch->intel);
// Release the buffer
intel_batchbuffer_terminate(batch);
}
LOCAL void
intel_batchbuffer_emit_reloc(intel_batchbuffer_t *batch,
dri_bo *bo,
uint32_t read_domains,
uint32_t write_domains,
uint32_t delta)
{
assert(batch->ptr - batch->map < batch->size);
dri_bo_emit_reloc(batch->buffer,
read_domains,
write_domains,
delta,
batch->ptr - batch->map,
bo);
intel_batchbuffer_emit_dword(batch, bo->offset + delta);
}
LOCAL void
intel_batchbuffer_emit_mi_flush(intel_batchbuffer_t *batch)
{
intel_batchbuffer_require_space(batch, 4);
intel_batchbuffer_emit_dword(batch, MI_FLUSH | STATE_INSTRUCTION_CACHE_INVALIDATE);
}
LOCAL intel_batchbuffer_t*
intel_batchbuffer_new(intel_driver_t *intel)
{
intel_batchbuffer_t *batch = NULL;
assert(intel);
TRY_ALLOC_NO_ERR (batch, CALLOC(intel_batchbuffer_t));
intel_batchbuffer_init(batch, intel);
exit:
return batch;
error:
intel_batchbuffer_delete(batch);
batch = NULL;
goto exit;
}
LOCAL void
intel_batchbuffer_delete(intel_batchbuffer_t *batch)
{
if (batch == NULL)
return;
if(batch->buffer)
intel_batchbuffer_terminate(batch);
cl_free(batch);
}
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