/* * Copyright (C) 2013 Red Hat * Author: Rob Clark <robdclark@gmail.com> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. * * This program 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 General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program.  If not, see <http://www.gnu.org/licenses/>. */ #ifndef __MSM_RINGBUFFER_H__#define __MSM_RINGBUFFER_H__ #include "msm_drv.h" struct msm_ringbuffer {	struct msm_gpu *gpu;	int size;	struct drm_gem_object *bo;	uint32_t *start, *end, *cur;}; struct msm_ringbuffer *msm_ringbuffer_new(struct msm_gpu *gpu, int size);void msm_ringbuffer_destroy(struct msm_ringbuffer *ring); /* ringbuffer helpers (the parts that are same for a3xx/a2xx/z180..) */ static inline voidOUT_RING(struct msm_ringbuffer *ring, uint32_t data){	if (ring->cur == ring->end)		ring->cur = ring->start;	*(ring->cur++) = data;} #endif /* __MSM_RINGBUFFER_H__ */