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/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
*
* 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 (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 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.
*
* Authors:
* Rob Clark <robclark@freedesktop.org>
*/
#ifndef FREEDRENO_RINGBUFFER_H_
#define FREEDRENO_RINGBUFFER_H_
#include <freedreno_drmif.h>
/* the ringbuffer object is not opaque so that OUT_RING() type stuff
* can be inlined. Note that users should not make assumptions about
* the size of this struct.. more stuff will be added when we eventually
* have a kernel driver that can deal w/ reloc's..
*/
struct fd_rb_bo;
struct fd_ringmarker;
struct fd_ringbuffer {
int size;
uint32_t *cur, *end, *start, *last_start;
struct fd_pipe *pipe;
struct fd_rb_bo *bo;
uint32_t last_timestamp;
};
/* ringbuffer flush flags:
* SAVE_GMEM - GMEM contents not preserved to system memory
* in cmds flushed so if there is a context switch after
* this flush and before the next one the kernel must
* save GMEM contents
* SUBMIT_IB_LIST - tbd..
*/
#define DRM_FREEDRENO_CONTEXT_SAVE_GMEM 1
#define DRM_FREEDRENO_CONTEXT_SUBMIT_IB_LIST 4
struct fd_ringbuffer * fd_ringbuffer_new(struct fd_pipe *pipe,
uint32_t size);
void fd_ringbuffer_del(struct fd_ringbuffer *ring);
void fd_ringbuffer_reset(struct fd_ringbuffer *ring);
int fd_ringbuffer_flush(struct fd_ringbuffer *ring);
uint32_t fd_ringbuffer_timestamp(struct fd_ringbuffer *ring);
static inline void fd_ringbuffer_emit(struct fd_ringbuffer *ring,
uint32_t data)
{
(*ring->cur++) = data;
}
void fd_ringbuffer_emit_reloc(struct fd_ringbuffer *ring,
struct fd_bo *bo, uint32_t offset, uint32_t or);
void fd_ringbuffer_emit_reloc_ring(struct fd_ringbuffer *ring,
struct fd_ringmarker *target);
struct fd_ringmarker * fd_ringmarker_new(struct fd_ringbuffer *ring);
void fd_ringmarker_del(struct fd_ringmarker *marker);
void fd_ringmarker_mark(struct fd_ringmarker *marker);
uint32_t fd_ringmarker_dwords(struct fd_ringmarker *start,
struct fd_ringmarker *end);
int fd_ringmarker_flush(struct fd_ringmarker *marker);
#endif /* FREEDRENO_RINGBUFFER_H_ */
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