nv50_query.c revision 8fe5da89e33a2408c21dd536d0b2e2178aeaef1e
1/* 2 * Copyright 2008 Ben Skeggs 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 shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 18 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF 19 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 20 * SOFTWARE. 21 */ 22 23#include "pipe/p_context.h" 24#include "util/u_inlines.h" 25 26#include "nv50_context.h" 27 28struct nv50_query { 29 struct nouveau_bo *bo; 30 unsigned type; 31 boolean ready; 32 uint64_t result; 33}; 34 35static INLINE struct nv50_query * 36nv50_query(struct pipe_query *pipe) 37{ 38 return (struct nv50_query *)pipe; 39} 40 41static struct pipe_query * 42nv50_query_create(struct pipe_context *pipe, unsigned type) 43{ 44 struct nouveau_device *dev = nouveau_screen(pipe->screen)->device; 45 struct nv50_query *q = CALLOC_STRUCT(nv50_query); 46 int ret; 47 48 assert (type == PIPE_QUERY_OCCLUSION_COUNTER); 49 q->type = type; 50 51 ret = nouveau_bo_new(dev, NOUVEAU_BO_GART | NOUVEAU_BO_MAP, 256, 52 16, &q->bo); 53 if (ret) { 54 FREE(q); 55 return NULL; 56 } 57 58 return (struct pipe_query *)q; 59} 60 61static void 62nv50_query_destroy(struct pipe_context *pipe, struct pipe_query *pq) 63{ 64 struct nv50_query *q = nv50_query(pq); 65 66 if (q) { 67 nouveau_bo_ref(NULL, &q->bo); 68 FREE(q); 69 } 70} 71 72static void 73nv50_query_begin(struct pipe_context *pipe, struct pipe_query *pq) 74{ 75 struct nv50_context *nv50 = nv50_context(pipe); 76 struct nouveau_channel *chan = nv50->screen->base.channel; 77 struct nouveau_grobj *tesla = nv50->screen->tesla; 78 struct nv50_query *q = nv50_query(pq); 79 80 BEGIN_RING(chan, tesla, NV50TCL_SAMPLECNT_RESET, 1); 81 OUT_RING (chan, 1); 82 BEGIN_RING(chan, tesla, NV50TCL_SAMPLECNT_ENABLE, 1); 83 OUT_RING (chan, 1); 84 85 q->ready = FALSE; 86} 87 88static void 89nv50_query_end(struct pipe_context *pipe, struct pipe_query *pq) 90{ 91 struct nv50_context *nv50 = nv50_context(pipe); 92 struct nouveau_channel *chan = nv50->screen->base.channel; 93 struct nouveau_grobj *tesla = nv50->screen->tesla; 94 struct nv50_query *q = nv50_query(pq); 95 96 MARK_RING (chan, 5, 2); /* flush on lack of space or relocs */ 97 BEGIN_RING(chan, tesla, NV50TCL_QUERY_ADDRESS_HIGH, 4); 98 OUT_RELOCh(chan, q->bo, 0, NOUVEAU_BO_GART | NOUVEAU_BO_WR); 99 OUT_RELOCl(chan, q->bo, 0, NOUVEAU_BO_GART | NOUVEAU_BO_WR); 100 OUT_RING (chan, 0x00000000); 101 OUT_RING (chan, 0x0100f002); 102 103 BEGIN_RING(chan, tesla, NV50TCL_SAMPLECNT_ENABLE, 1); 104 OUT_RING (chan, 0); 105} 106 107static boolean 108nv50_query_result(struct pipe_context *pipe, struct pipe_query *pq, 109 boolean wait, void *vresult) 110{ 111 uint64_t *result = (uint64_t*)vresult; 112 struct nv50_query *q = nv50_query(pq); 113 int ret; 114 115 if (!q->ready) { 116 ret = nouveau_bo_map(q->bo, NOUVEAU_BO_RD | 117 (wait ? 0 : NOUVEAU_BO_NOWAIT)); 118 if (ret) 119 return false; 120 q->result = ((uint32_t *)q->bo->map)[1]; 121 q->ready = TRUE; 122 nouveau_bo_unmap(q->bo); 123 } 124 125 *result = q->result; 126 return q->ready; 127} 128 129static void 130nv50_render_condition(struct pipe_context *pipe, 131 struct pipe_query *pq, uint mode) 132{ 133 struct nv50_context *nv50 = nv50_context(pipe); 134 struct nouveau_channel *chan = nv50->screen->base.channel; 135 struct nouveau_grobj *tesla = nv50->screen->tesla; 136 struct nv50_query *q; 137 138 if (!pq) { 139 BEGIN_RING(chan, tesla, NV50TCL_COND_MODE, 1); 140 OUT_RING (chan, NV50TCL_COND_MODE_ALWAYS); 141 return; 142 } 143 q = nv50_query(pq); 144 145 if (mode == PIPE_RENDER_COND_WAIT || 146 mode == PIPE_RENDER_COND_BY_REGION_WAIT) { 147 /* XXX: big fence, FIFO semaphore might be better */ 148 BEGIN_RING(chan, tesla, 0x0110, 1); 149 OUT_RING (chan, 0); 150 } 151 152 BEGIN_RING(chan, tesla, NV50TCL_COND_ADDRESS_HIGH, 3); 153 OUT_RELOCh(chan, q->bo, 0, NOUVEAU_BO_GART | NOUVEAU_BO_RD); 154 OUT_RELOCl(chan, q->bo, 0, NOUVEAU_BO_GART | NOUVEAU_BO_RD); 155 OUT_RING (chan, NV50TCL_COND_MODE_RES); 156} 157 158void 159nv50_init_query_functions(struct nv50_context *nv50) 160{ 161 nv50->pipe.create_query = nv50_query_create; 162 nv50->pipe.destroy_query = nv50_query_destroy; 163 nv50->pipe.begin_query = nv50_query_begin; 164 nv50->pipe.end_query = nv50_query_end; 165 nv50->pipe.get_query_result = nv50_query_result; 166 nv50->pipe.render_condition = nv50_render_condition; 167} 168