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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 2.1 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.
*
**************************************************************************/
#ifndef _INTEL_BATCHBUFFER_H_
#define _INTEL_BATCHBUFFER_H_
#include "intel_defines.h"
#include "cl_utils.h"
#include <xf86drm.h>
#include <drm.h>
#include <i915_drm.h>
#include <intel_bufmgr.h>
#include <stdint.h>
#include <memory.h>
#include <assert.h>
#define BEGIN_BATCH(b, n) do { \
intel_batchbuffer_require_space(b, (n) * 4); \
} while (0)
#define OUT_BATCH(b, d) do { \
intel_batchbuffer_emit_dword(b, d); \
} while (0)
#define OUT_RELOC(b, bo, read_domains, write_domain, delta) do { \
assert((delta) >= 0); \
intel_batchbuffer_emit_reloc(b, bo, read_domains, write_domain, delta); \
} while (0)
#define ADVANCE_BATCH(b) do { } while (0)
struct intel_driver;
typedef struct intel_batchbuffer
{
struct intel_driver *intel;
drm_intel_bo *buffer;
/** Last bo submitted to the hardware. used for clFinish. */
drm_intel_bo *last_bo;
uint32_t size;
uint8_t *map;
uint8_t *ptr;
/** HSW: can't set LRI in batch buffer, set I915_EXEC_ENABLE_SLM
* flag when call exec. */
uint8_t enable_slm;
int atomic;
} intel_batchbuffer_t;
extern intel_batchbuffer_t* intel_batchbuffer_new(struct intel_driver*);
extern void intel_batchbuffer_delete(intel_batchbuffer_t*);
extern void intel_batchbuffer_emit_reloc(intel_batchbuffer_t*,
drm_intel_bo*,
uint32_t read_domains,
uint32_t write_domains,
uint32_t delta);
extern void intel_batchbuffer_init(intel_batchbuffer_t*, struct intel_driver*);
extern void intel_batchbuffer_terminate(intel_batchbuffer_t*);
extern void intel_batchbuffer_flush(intel_batchbuffer_t*);
extern int intel_batchbuffer_reset(intel_batchbuffer_t*, size_t sz);
static INLINE uint32_t
intel_batchbuffer_space(const intel_batchbuffer_t *batch)
{
assert(batch->ptr);
return batch->size - (batch->ptr - batch->map);
}
static INLINE void
intel_batchbuffer_emit_dword(intel_batchbuffer_t *batch, uint32_t x)
{
assert(intel_batchbuffer_space(batch) >= 4);
*(uint32_t*)batch->ptr = x;
batch->ptr += 4;
}
static INLINE void
intel_batchbuffer_require_space(intel_batchbuffer_t *batch, uint32_t size) {
assert(size < batch->size - 8);
if (intel_batchbuffer_space(batch) < size)
intel_batchbuffer_space(batch);
}
static INLINE uint8_t*
intel_batchbuffer_alloc_space(intel_batchbuffer_t *batch, uint32_t size)
{
assert(intel_batchbuffer_space(batch) >= size);
uint8_t *space_ptr = batch->ptr;
batch->ptr += size;
return space_ptr;
}
static INLINE void
intel_batchbuffer_start_atomic(intel_batchbuffer_t *batch, uint32_t size)
{
assert(!batch->atomic);
intel_batchbuffer_require_space(batch, size);
batch->atomic = 1;
}
static INLINE void
intel_batchbuffer_end_atomic(intel_batchbuffer_t *batch)
{
assert(batch->atomic);
batch->atomic = 0;
}
#endif /* _INTEL_BATCHBUFFER_H_ */
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