| /* -*- 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> |
| */ |
| |
| #include <assert.h> |
| |
| #include "freedreno_drmif.h" |
| #include "freedreno_priv.h" |
| #include "freedreno_ringbuffer.h" |
| |
| drm_public struct fd_ringbuffer * |
| fd_ringbuffer_new_flags(struct fd_pipe *pipe, uint32_t size, |
| enum fd_ringbuffer_flags flags) |
| { |
| struct fd_ringbuffer *ring; |
| |
| /* we can't really support "growable" rb's in general for |
| * stateobj's since we need a single gpu addr (ie. can't |
| * do the trick of a chain of IB packets): |
| */ |
| if (flags & FD_RINGBUFFER_OBJECT) |
| assert(size); |
| |
| ring = pipe->funcs->ringbuffer_new(pipe, size, flags); |
| if (!ring) |
| return NULL; |
| |
| ring->flags = flags; |
| ring->pipe = pipe; |
| ring->start = ring->funcs->hostptr(ring); |
| ring->end = &(ring->start[ring->size/4]); |
| |
| ring->cur = ring->last_start = ring->start; |
| |
| return ring; |
| } |
| |
| drm_public struct fd_ringbuffer * |
| fd_ringbuffer_new(struct fd_pipe *pipe, uint32_t size) |
| { |
| return fd_ringbuffer_new_flags(pipe, size, 0); |
| } |
| |
| drm_public struct fd_ringbuffer * |
| fd_ringbuffer_new_object(struct fd_pipe *pipe, uint32_t size) |
| { |
| return fd_ringbuffer_new_flags(pipe, size, FD_RINGBUFFER_OBJECT); |
| } |
| |
| drm_public void fd_ringbuffer_del(struct fd_ringbuffer *ring) |
| { |
| if (!atomic_dec_and_test(&ring->refcnt)) |
| return; |
| |
| fd_ringbuffer_reset(ring); |
| ring->funcs->destroy(ring); |
| } |
| |
| drm_public struct fd_ringbuffer * |
| fd_ringbuffer_ref(struct fd_ringbuffer *ring) |
| { |
| STATIC_ASSERT(sizeof(ring->refcnt) <= sizeof(ring->__pad)); |
| atomic_inc(&ring->refcnt); |
| return ring; |
| } |
| |
| /* ringbuffers which are IB targets should set the toplevel rb (ie. |
| * the IB source) as it's parent before emitting reloc's, to ensure |
| * the bookkeeping works out properly. |
| */ |
| drm_public void fd_ringbuffer_set_parent(struct fd_ringbuffer *ring, |
| struct fd_ringbuffer *parent) |
| { |
| /* state objects should not be parented! */ |
| assert(!(ring->flags & FD_RINGBUFFER_OBJECT)); |
| ring->parent = parent; |
| } |
| |
| drm_public void fd_ringbuffer_reset(struct fd_ringbuffer *ring) |
| { |
| uint32_t *start = ring->start; |
| if (ring->pipe->id == FD_PIPE_2D) |
| start = &ring->start[0x140]; |
| ring->cur = ring->last_start = start; |
| if (ring->funcs->reset) |
| ring->funcs->reset(ring); |
| } |
| |
| drm_public int fd_ringbuffer_flush(struct fd_ringbuffer *ring) |
| { |
| return ring->funcs->flush(ring, ring->last_start, -1, NULL); |
| } |
| |
| drm_public int fd_ringbuffer_flush2(struct fd_ringbuffer *ring, int in_fence_fd, |
| int *out_fence_fd) |
| { |
| return ring->funcs->flush(ring, ring->last_start, in_fence_fd, out_fence_fd); |
| } |
| |
| drm_public void fd_ringbuffer_grow(struct fd_ringbuffer *ring, uint32_t ndwords) |
| { |
| assert(ring->funcs->grow); /* unsupported on kgsl */ |
| |
| /* there is an upper bound on IB size, which appears to be 0x100000 */ |
| if (ring->size < 0x100000) |
| ring->size *= 2; |
| |
| ring->funcs->grow(ring, ring->size); |
| |
| ring->start = ring->funcs->hostptr(ring); |
| ring->end = &(ring->start[ring->size/4]); |
| |
| ring->cur = ring->last_start = ring->start; |
| } |
| |
| drm_public uint32_t fd_ringbuffer_timestamp(struct fd_ringbuffer *ring) |
| { |
| return ring->last_timestamp; |
| } |
| |
| drm_public void fd_ringbuffer_reloc(struct fd_ringbuffer *ring, |
| const struct fd_reloc *reloc) |
| { |
| assert(ring->pipe->gpu_id < 500); |
| ring->funcs->emit_reloc(ring, reloc); |
| } |
| |
| drm_public void fd_ringbuffer_reloc2(struct fd_ringbuffer *ring, |
| const struct fd_reloc *reloc) |
| { |
| ring->funcs->emit_reloc(ring, reloc); |
| } |
| |
| drm_public uint32_t fd_ringbuffer_cmd_count(struct fd_ringbuffer *ring) |
| { |
| if (!ring->funcs->cmd_count) |
| return 1; |
| return ring->funcs->cmd_count(ring); |
| } |
| |
| drm_public uint32_t |
| fd_ringbuffer_emit_reloc_ring_full(struct fd_ringbuffer *ring, |
| struct fd_ringbuffer *target, uint32_t cmd_idx) |
| { |
| return ring->funcs->emit_reloc_ring(ring, target, cmd_idx); |
| } |
| |
| drm_public uint32_t |
| fd_ringbuffer_size(struct fd_ringbuffer *ring) |
| { |
| /* only really needed for stateobj ringbuffers, and won't really |
| * do what you expect for growable rb's.. so lets just restrict |
| * this to stateobj's for now: |
| */ |
| assert(ring->flags & FD_RINGBUFFER_OBJECT); |
| return offset_bytes(ring->cur, ring->start); |
| } |
| |