1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
4 * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
26 * Rob Clark <robclark@freedesktop.org>
29 #ifndef FREEDRENO_RINGBUFFER_H_
30 #define FREEDRENO_RINGBUFFER_H_
32 #include <freedreno_drmif.h>
34 /* the ringbuffer object is not opaque so that OUT_RING() type stuff
35 * can be inlined. Note that users should not make assumptions about
36 * the size of this struct.. more stuff will be added when we eventually
37 * have a kernel driver that can deal w/ reloc's..
43 struct fd_ringbuffer {
45 uint32_t *cur, *end, *start, *last_start;
48 uint32_t last_timestamp;
51 /* ringbuffer flush flags:
52 * SAVE_GMEM - GMEM contents not preserved to system memory
53 * in cmds flushed so if there is a context switch after
54 * this flush and before the next one the kernel must
56 * SUBMIT_IB_LIST - tbd..
58 #define DRM_FREEDRENO_CONTEXT_SAVE_GMEM 1
59 #define DRM_FREEDRENO_CONTEXT_SUBMIT_IB_LIST 4
62 struct fd_ringbuffer * fd_ringbuffer_new(struct fd_pipe *pipe,
64 void fd_ringbuffer_del(struct fd_ringbuffer *ring);
65 void fd_ringbuffer_reset(struct fd_ringbuffer *ring);
66 int fd_ringbuffer_flush(struct fd_ringbuffer *ring);
67 uint32_t fd_ringbuffer_timestamp(struct fd_ringbuffer *ring);
69 static inline void fd_ringbuffer_emit(struct fd_ringbuffer *ring,
72 (*ring->cur++) = data;
75 void fd_ringbuffer_emit_reloc(struct fd_ringbuffer *ring,
76 struct fd_bo *bo, uint32_t offset, uint32_t or);
77 void fd_ringbuffer_emit_reloc_shift(struct fd_ringbuffer *ring,
78 struct fd_bo *bo, uint32_t offset, uint32_t or, int32_t shift);
79 void fd_ringbuffer_emit_reloc_ring(struct fd_ringbuffer *ring,
80 struct fd_ringmarker *target);
82 struct fd_ringmarker * fd_ringmarker_new(struct fd_ringbuffer *ring);
83 void fd_ringmarker_del(struct fd_ringmarker *marker);
84 void fd_ringmarker_mark(struct fd_ringmarker *marker);
85 uint32_t fd_ringmarker_dwords(struct fd_ringmarker *start,
86 struct fd_ringmarker *end);
87 int fd_ringmarker_flush(struct fd_ringmarker *marker);
89 #endif /* FREEDRENO_RINGBUFFER_H_ */