1 /* 2 * Copyright 2014-2017 Broadcom 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, sublicense, 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 next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * 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 NONINFRINGEMENT. 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 DEALINGS 21 * IN THE SOFTWARE. 22 */ 23 24 #include "util/u_math.h" 25 #include "util/ralloc.h" 26 #include "vc5_context.h" 27 /* The branching packets are the same across V3D versions. */ 28 #define V3D_VERSION 33 29 #include "broadcom/common/v3d_macros.h" 30 #include "broadcom/cle/v3dx_pack.h" 31 32 void 33 vc5_init_cl(struct vc5_job *job, struct vc5_cl *cl) 34 { 35 cl->base = NULL; 36 cl->next = cl->base; 37 cl->size = 0; 38 cl->job = job; 39 } 40 41 uint32_t 42 vc5_cl_ensure_space(struct vc5_cl *cl, uint32_t space, uint32_t alignment) 43 { 44 uint32_t offset = align(cl_offset(cl), alignment); 45 46 if (offset + space <= cl->size) { 47 cl->next = cl->base + offset; 48 return offset; 49 } 50 51 vc5_bo_unreference(&cl->bo); 52 cl->bo = vc5_bo_alloc(cl->job->vc5->screen, align(space, 4096), "CL"); 53 cl->base = vc5_bo_map(cl->bo); 54 cl->size = cl->bo->size; 55 cl->next = cl->base; 56 57 return 0; 58 } 59 60 void 61 vc5_cl_ensure_space_with_branch(struct vc5_cl *cl, uint32_t space) 62 { 63 if (cl_offset(cl) + space + cl_packet_length(BRANCH) <= cl->size) 64 return; 65 66 struct vc5_bo *new_bo = vc5_bo_alloc(cl->job->vc5->screen, 4096, "CL"); 67 assert(space <= new_bo->size); 68 69 /* Chain to the new BO from the old one. */ 70 if (cl->bo) { 71 cl_emit(cl, BRANCH, branch) { 72 branch.address = cl_address(new_bo, 0); 73 } 74 vc5_bo_unreference(&cl->bo); 75 } else { 76 /* Root the first RCL/BCL BO in the job. */ 77 vc5_job_add_bo(cl->job, cl->bo); 78 } 79 80 cl->bo = new_bo; 81 cl->base = vc5_bo_map(cl->bo); 82 cl->size = cl->bo->size; 83 cl->next = cl->base; 84 } 85 86 void 87 vc5_destroy_cl(struct vc5_cl *cl) 88 { 89 vc5_bo_unreference(&cl->bo); 90 } 91