1/* 2 * Copyright (c) 2018-2019 Lima Project 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sub license, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the 12 * next paragraph) shall be included in all copies or substantial portions 13 * of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 * 23 */ 24 25#include <fcntl.h> 26#include <libsync.h> 27 28#include "util/os_file.h" 29#include <util/u_memory.h> 30#include <util/u_inlines.h> 31 32#include "drm-uapi/lima_drm.h" 33 34#include "lima_screen.h" 35#include "lima_context.h" 36#include "lima_fence.h" 37#include "lima_job.h" 38 39struct pipe_fence_handle { 40 struct pipe_reference reference; 41 int fd; 42}; 43 44static void 45lima_create_fence_fd(struct pipe_context *pctx, 46 struct pipe_fence_handle **fence, 47 int fd, enum pipe_fd_type type) 48{ 49 assert(type == PIPE_FD_TYPE_NATIVE_SYNC); 50 *fence = lima_fence_create(os_dupfd_cloexec(fd)); 51} 52 53static void 54lima_fence_server_sync(struct pipe_context *pctx, 55 struct pipe_fence_handle *fence) 56{ 57 struct lima_context *ctx = lima_context(pctx); 58 59 sync_accumulate("lima", &ctx->in_sync_fd, fence->fd); 60} 61 62void lima_fence_context_init(struct lima_context *ctx) 63{ 64 ctx->base.create_fence_fd = lima_create_fence_fd; 65 ctx->base.fence_server_sync = lima_fence_server_sync; 66} 67 68struct pipe_fence_handle * 69lima_fence_create(int fd) 70{ 71 struct pipe_fence_handle *fence; 72 73 fence = CALLOC_STRUCT(pipe_fence_handle); 74 if (!fence) 75 return NULL; 76 77 pipe_reference_init(&fence->reference, 1); 78 fence->fd = fd; 79 80 return fence; 81} 82 83static int 84lima_fence_get_fd(struct pipe_screen *pscreen, 85 struct pipe_fence_handle *fence) 86{ 87 return os_dupfd_cloexec(fence->fd); 88} 89 90static void 91lima_fence_destroy(struct pipe_fence_handle *fence) 92{ 93 if (fence->fd >= 0) 94 close(fence->fd); 95 FREE(fence); 96} 97 98static void 99lima_fence_reference(struct pipe_screen *pscreen, 100 struct pipe_fence_handle **ptr, 101 struct pipe_fence_handle *fence) 102{ 103 if (pipe_reference(&(*ptr)->reference, &fence->reference)) 104 lima_fence_destroy(*ptr); 105 *ptr = fence; 106} 107 108static bool 109lima_fence_finish(struct pipe_screen *pscreen, struct pipe_context *pctx, 110 struct pipe_fence_handle *fence, uint64_t timeout) 111{ 112 return !sync_wait(fence->fd, timeout / 1000000); 113} 114 115void 116lima_fence_screen_init(struct lima_screen *screen) 117{ 118 screen->base.fence_reference = lima_fence_reference; 119 screen->base.fence_finish = lima_fence_finish; 120 screen->base.fence_get_fd = lima_fence_get_fd; 121} 122