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/* wld: intel/batch.h
*
* Copyright (c) 2013, 2014 Michael Forney
*
* 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 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 THE
* AUTHORS OR COPYRIGHT HOLDERS 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 WLD_INTEL_BATCH_H
#define WLD_INTEL_BATCH_H
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <intel_bufmgr.h>
#define INTEL_BATCH_MAX_COMMANDS (1 << 13)
#define INTEL_BATCH_RESERVED_COMMANDS 2
#define INTEL_BATCH_SIZE (INTEL_BATCH_MAX_COMMANDS << 2)
enum intel_batch_result
{
INTEL_BATCH_SUCCESS,
INTEL_BATCH_NO_SPACE
};
struct intel_device_info
{
int gen;
};
#define GEN(b, m) ((b)->device_info->gen >= (m))
struct intel_batch
{
const struct intel_device_info * device_info;
drm_intel_bo * bo;
uint32_t commands[INTEL_BATCH_MAX_COMMANDS];
uint32_t command_count;
};
bool intel_batch_initialize(struct intel_batch * batch,
drm_intel_bufmgr * bufmgr);
void intel_batch_finalize(struct intel_batch * batch);
void intel_batch_flush(struct intel_batch * batch);
static inline uint32_t intel_batch_check_space(struct intel_batch * batch,
uint32_t size)
{
return (INTEL_BATCH_MAX_COMMANDS - INTEL_BATCH_RESERVED_COMMANDS
- batch->command_count) >= size;
}
static inline void intel_batch_ensure_space(struct intel_batch * batch, uint32_t size)
{
if (!intel_batch_check_space(batch, size))
intel_batch_flush(batch);
}
static inline void intel_batch_add_dword(struct intel_batch * batch,
uint32_t dword)
{
batch->commands[batch->command_count++] = dword;
}
static inline void intel_batch_add_dwords_va(struct intel_batch * batch,
uint32_t count, va_list dwords)
{
while (count--)
intel_batch_add_dword(batch, va_arg(dwords, uint32_t));
}
static inline void intel_batch_add_dwords(struct intel_batch * batch,
uint32_t count, ...)
{
va_list dwords;
va_start(dwords, count);
intel_batch_add_dwords_va(batch, count, dwords);
va_end(dwords);
}
static inline uint32_t intel_batch_offset(struct intel_batch * batch,
uint32_t command_index)
{
return (batch->command_count + command_index) << 2;
}
#endif
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