| /* |
| * Copyright © 2013 Intel Corporation |
| * |
| * 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. |
| */ |
| |
| /** |
| * \file brw_performance_query.c |
| * |
| * Implementation of the GL_INTEL_performance_query extension. |
| * |
| * Currently there are two possible counter sources exposed here: |
| * |
| * On Gen6+ hardware we have numerous 64bit Pipeline Statistics Registers |
| * that we can snapshot at the beginning and end of a query. |
| * |
| * On Gen7.5+ we have Observability Architecture counters which are |
| * covered in separate document from the rest of the PRMs. It is available at: |
| * https://01.org/linuxgraphics/documentation/driver-documentation-prms |
| * => 2013 Intel Core Processor Family => Observability Performance Counters |
| * (This one volume covers Sandybridge, Ivybridge, Baytrail, and Haswell, |
| * though notably we currently only support OA counters for Haswell+) |
| */ |
| |
| #include <limits.h> |
| |
| /* put before sys/types.h to silence glibc warnings */ |
| #ifdef MAJOR_IN_MKDEV |
| #include <sys/mkdev.h> |
| #endif |
| #ifdef MAJOR_IN_SYSMACROS |
| #include <sys/sysmacros.h> |
| #endif |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <sys/mman.h> |
| #include <sys/ioctl.h> |
| |
| #include <xf86drm.h> |
| #include "drm-uapi/i915_drm.h" |
| |
| #include "main/hash.h" |
| #include "main/macros.h" |
| #include "main/mtypes.h" |
| #include "main/performance_query.h" |
| |
| #include "util/bitset.h" |
| #include "util/ralloc.h" |
| #include "util/hash_table.h" |
| #include "util/list.h" |
| #include "util/u_math.h" |
| |
| #include "brw_context.h" |
| #include "brw_defines.h" |
| #include "intel_batchbuffer.h" |
| |
| #include "perf/gen_perf.h" |
| #include "perf/gen_perf_regs.h" |
| #include "perf/gen_perf_mdapi.h" |
| #include "perf/gen_perf_query.h" |
| |
| #define FILE_DEBUG_FLAG DEBUG_PERFMON |
| |
| #define OAREPORT_REASON_MASK 0x3f |
| #define OAREPORT_REASON_SHIFT 19 |
| #define OAREPORT_REASON_TIMER (1<<0) |
| #define OAREPORT_REASON_TRIGGER1 (1<<1) |
| #define OAREPORT_REASON_TRIGGER2 (1<<2) |
| #define OAREPORT_REASON_CTX_SWITCH (1<<3) |
| #define OAREPORT_REASON_GO_TRANSITION (1<<4) |
| |
| struct brw_perf_query_object { |
| struct gl_perf_query_object base; |
| struct gen_perf_query_object *query; |
| }; |
| |
| /** Downcasting convenience macro. */ |
| static inline struct brw_perf_query_object * |
| brw_perf_query(struct gl_perf_query_object *o) |
| { |
| return (struct brw_perf_query_object *) o; |
| } |
| |
| #define MI_RPC_BO_SIZE 4096 |
| #define MI_RPC_BO_END_OFFSET_BYTES (MI_RPC_BO_SIZE / 2) |
| #define MI_FREQ_START_OFFSET_BYTES (3072) |
| #define MI_FREQ_END_OFFSET_BYTES (3076) |
| |
| /******************************************************************************/ |
| |
| static bool |
| brw_is_perf_query_ready(struct gl_context *ctx, |
| struct gl_perf_query_object *o); |
| |
| static void |
| dump_perf_query_callback(GLuint id, void *query_void, void *brw_void) |
| { |
| struct brw_context *ctx = brw_void; |
| struct gen_perf_context *perf_ctx = ctx->perf_ctx; |
| struct gl_perf_query_object *o = query_void; |
| struct brw_perf_query_object * brw_query = brw_perf_query(o); |
| struct gen_perf_query_object *obj = brw_query->query; |
| |
| DBG("%4d: %-6s %-8s ", |
| id, |
| o->Used ? "Dirty," : "New,", |
| o->Active ? "Active," : (o->Ready ? "Ready," : "Pending,")); |
| gen_perf_dump_query(perf_ctx, obj, &ctx->batch); |
| } |
| |
| static void |
| dump_perf_queries(struct brw_context *brw) |
| { |
| struct gl_context *ctx = &brw->ctx; |
| gen_perf_dump_query_count(brw->perf_ctx); |
| _mesa_HashWalk(ctx->PerfQuery.Objects, dump_perf_query_callback, brw); |
| } |
| |
| /** |
| * Driver hook for glGetPerfQueryInfoINTEL(). |
| */ |
| static void |
| brw_get_perf_query_info(struct gl_context *ctx, |
| unsigned query_index, |
| const char **name, |
| GLuint *data_size, |
| GLuint *n_counters, |
| GLuint *n_active) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| struct gen_perf_context *perf_ctx = brw->perf_ctx; |
| struct gen_perf_config *perf_cfg = gen_perf_config(perf_ctx); |
| const struct gen_perf_query_info *query = &perf_cfg->queries[query_index]; |
| |
| *name = query->name; |
| *data_size = query->data_size; |
| *n_counters = query->n_counters; |
| *n_active = gen_perf_active_queries(perf_ctx, query); |
| } |
| |
| static GLuint |
| gen_counter_type_enum_to_gl_type(enum gen_perf_counter_type type) |
| { |
| switch (type) { |
| case GEN_PERF_COUNTER_TYPE_EVENT: return GL_PERFQUERY_COUNTER_EVENT_INTEL; |
| case GEN_PERF_COUNTER_TYPE_DURATION_NORM: return GL_PERFQUERY_COUNTER_DURATION_NORM_INTEL; |
| case GEN_PERF_COUNTER_TYPE_DURATION_RAW: return GL_PERFQUERY_COUNTER_DURATION_RAW_INTEL; |
| case GEN_PERF_COUNTER_TYPE_THROUGHPUT: return GL_PERFQUERY_COUNTER_THROUGHPUT_INTEL; |
| case GEN_PERF_COUNTER_TYPE_RAW: return GL_PERFQUERY_COUNTER_RAW_INTEL; |
| case GEN_PERF_COUNTER_TYPE_TIMESTAMP: return GL_PERFQUERY_COUNTER_TIMESTAMP_INTEL; |
| default: |
| unreachable("Unknown counter type"); |
| } |
| } |
| |
| static GLuint |
| gen_counter_data_type_to_gl_type(enum gen_perf_counter_data_type type) |
| { |
| switch (type) { |
| case GEN_PERF_COUNTER_DATA_TYPE_BOOL32: return GL_PERFQUERY_COUNTER_DATA_BOOL32_INTEL; |
| case GEN_PERF_COUNTER_DATA_TYPE_UINT32: return GL_PERFQUERY_COUNTER_DATA_UINT32_INTEL; |
| case GEN_PERF_COUNTER_DATA_TYPE_UINT64: return GL_PERFQUERY_COUNTER_DATA_UINT64_INTEL; |
| case GEN_PERF_COUNTER_DATA_TYPE_FLOAT: return GL_PERFQUERY_COUNTER_DATA_FLOAT_INTEL; |
| case GEN_PERF_COUNTER_DATA_TYPE_DOUBLE: return GL_PERFQUERY_COUNTER_DATA_DOUBLE_INTEL; |
| default: |
| unreachable("Unknown counter data type"); |
| } |
| } |
| |
| /** |
| * Driver hook for glGetPerfCounterInfoINTEL(). |
| */ |
| static void |
| brw_get_perf_counter_info(struct gl_context *ctx, |
| unsigned query_index, |
| unsigned counter_index, |
| const char **name, |
| const char **desc, |
| GLuint *offset, |
| GLuint *data_size, |
| GLuint *type_enum, |
| GLuint *data_type_enum, |
| GLuint64 *raw_max) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| struct gen_perf_config *perf_cfg = gen_perf_config(brw->perf_ctx); |
| const struct gen_perf_query_info *query = |
| &perf_cfg->queries[query_index]; |
| const struct gen_perf_query_counter *counter = |
| &query->counters[counter_index]; |
| |
| *name = counter->name; |
| *desc = counter->desc; |
| *offset = counter->offset; |
| *data_size = gen_perf_query_counter_get_size(counter); |
| *type_enum = gen_counter_type_enum_to_gl_type(counter->type); |
| *data_type_enum = gen_counter_data_type_to_gl_type(counter->data_type); |
| *raw_max = counter->raw_max; |
| } |
| |
| enum OaReadStatus { |
| OA_READ_STATUS_ERROR, |
| OA_READ_STATUS_UNFINISHED, |
| OA_READ_STATUS_FINISHED, |
| }; |
| |
| /******************************************************************************/ |
| |
| /** |
| * Driver hook for glBeginPerfQueryINTEL(). |
| */ |
| static bool |
| brw_begin_perf_query(struct gl_context *ctx, |
| struct gl_perf_query_object *o) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| struct brw_perf_query_object *brw_query = brw_perf_query(o); |
| struct gen_perf_query_object *obj = brw_query->query; |
| struct gen_perf_context *perf_ctx = brw->perf_ctx; |
| |
| /* We can assume the frontend hides mistaken attempts to Begin a |
| * query object multiple times before its End. Similarly if an |
| * application reuses a query object before results have arrived |
| * the frontend will wait for prior results so we don't need |
| * to support abandoning in-flight results. |
| */ |
| assert(!o->Active); |
| assert(!o->Used || o->Ready); /* no in-flight query to worry about */ |
| |
| DBG("Begin(%d)\n", o->Id); |
| |
| gen_perf_begin_query(perf_ctx, obj); |
| |
| if (INTEL_DEBUG & DEBUG_PERFMON) |
| dump_perf_queries(brw); |
| |
| return true; |
| } |
| |
| /** |
| * Driver hook for glEndPerfQueryINTEL(). |
| */ |
| static void |
| brw_end_perf_query(struct gl_context *ctx, |
| struct gl_perf_query_object *o) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| struct brw_perf_query_object *brw_query = brw_perf_query(o); |
| struct gen_perf_query_object *obj = brw_query->query; |
| struct gen_perf_context *perf_ctx = brw->perf_ctx; |
| |
| DBG("End(%d)\n", o->Id); |
| gen_perf_end_query(perf_ctx, obj); |
| } |
| |
| static void |
| brw_wait_perf_query(struct gl_context *ctx, struct gl_perf_query_object *o) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| struct brw_perf_query_object *brw_query = brw_perf_query(o); |
| struct gen_perf_query_object *obj = brw_query->query; |
| |
| assert(!o->Ready); |
| |
| gen_perf_wait_query(brw->perf_ctx, obj, &brw->batch); |
| } |
| |
| static bool |
| brw_is_perf_query_ready(struct gl_context *ctx, |
| struct gl_perf_query_object *o) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| struct brw_perf_query_object *brw_query = brw_perf_query(o); |
| struct gen_perf_query_object *obj = brw_query->query; |
| |
| if (o->Ready) |
| return true; |
| |
| return gen_perf_is_query_ready(brw->perf_ctx, obj, &brw->batch); |
| } |
| |
| /** |
| * Driver hook for glGetPerfQueryDataINTEL(). |
| */ |
| static void |
| brw_get_perf_query_data(struct gl_context *ctx, |
| struct gl_perf_query_object *o, |
| GLsizei data_size, |
| GLuint *data, |
| GLuint *bytes_written) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| struct brw_perf_query_object *brw_query = brw_perf_query(o); |
| struct gen_perf_query_object *obj = brw_query->query; |
| |
| assert(brw_is_perf_query_ready(ctx, o)); |
| |
| DBG("GetData(%d)\n", o->Id); |
| |
| if (INTEL_DEBUG & DEBUG_PERFMON) |
| dump_perf_queries(brw); |
| |
| /* We expect that the frontend only calls this hook when it knows |
| * that results are available. |
| */ |
| assert(o->Ready); |
| |
| gen_perf_get_query_data(brw->perf_ctx, obj, |
| data_size, data, bytes_written); |
| } |
| |
| static struct gl_perf_query_object * |
| brw_new_perf_query_object(struct gl_context *ctx, unsigned query_index) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| struct gen_perf_context *perf_ctx = brw->perf_ctx; |
| struct gen_perf_query_object * obj = gen_perf_new_query(perf_ctx, query_index); |
| if (unlikely(!obj)) |
| return NULL; |
| |
| struct brw_perf_query_object *brw_query = calloc(1, sizeof(struct brw_perf_query_object)); |
| if (unlikely(!brw_query)) { |
| gen_perf_delete_query(perf_ctx, obj); |
| return NULL; |
| } |
| |
| brw_query->query = obj; |
| return &brw_query->base; |
| } |
| |
| /** |
| * Driver hook for glDeletePerfQueryINTEL(). |
| */ |
| static void |
| brw_delete_perf_query(struct gl_context *ctx, |
| struct gl_perf_query_object *o) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| struct brw_perf_query_object *brw_query = brw_perf_query(o); |
| struct gen_perf_query_object *obj = brw_query->query; |
| struct gen_perf_context *perf_ctx = brw->perf_ctx; |
| |
| /* We can assume that the frontend waits for a query to complete |
| * before ever calling into here, so we don't have to worry about |
| * deleting an in-flight query object. |
| */ |
| assert(!o->Active); |
| assert(!o->Used || o->Ready); |
| |
| DBG("Delete(%d)\n", o->Id); |
| |
| gen_perf_delete_query(perf_ctx, obj); |
| free(brw_query); |
| } |
| |
| /******************************************************************************/ |
| /* gen_device_info will have incorrect default topology values for unsupported kernels. |
| * verify kernel support to ensure OA metrics are accurate. |
| */ |
| static bool |
| oa_metrics_kernel_support(int fd, const struct gen_device_info *devinfo) |
| { |
| if (devinfo->gen >= 10) { |
| /* topology uAPI required for CNL+ (kernel 4.17+) make a call to the api |
| * to verify support |
| */ |
| struct drm_i915_query_item item = { |
| .query_id = DRM_I915_QUERY_TOPOLOGY_INFO, |
| }; |
| struct drm_i915_query query = { |
| .num_items = 1, |
| .items_ptr = (uintptr_t) &item, |
| }; |
| |
| /* kernel 4.17+ supports the query */ |
| return drmIoctl(fd, DRM_IOCTL_I915_QUERY, &query) == 0; |
| } |
| |
| if (devinfo->gen >= 8) { |
| /* 4.13+ api required for gen8 - gen9 */ |
| int mask; |
| struct drm_i915_getparam gp = { |
| .param = I915_PARAM_SLICE_MASK, |
| .value = &mask, |
| }; |
| /* kernel 4.13+ supports this parameter */ |
| return drmIoctl(fd, DRM_IOCTL_I915_GETPARAM, &gp) == 0; |
| } |
| |
| if (devinfo->gen == 7) |
| /* default topology values are correct for HSW */ |
| return true; |
| |
| /* oa not supported before gen 7*/ |
| return false; |
| } |
| |
| static void * |
| brw_oa_bo_alloc(void *bufmgr, const char *name, uint64_t size) |
| { |
| return brw_bo_alloc(bufmgr, name, size, BRW_MEMZONE_OTHER); |
| } |
| |
| static void |
| brw_oa_emit_mi_report_perf_count(void *c, |
| void *bo, |
| uint32_t offset_in_bytes, |
| uint32_t report_id) |
| { |
| struct brw_context *ctx = c; |
| ctx->vtbl.emit_mi_report_perf_count(ctx, |
| bo, |
| offset_in_bytes, |
| report_id); |
| } |
| |
| typedef void (*bo_unreference_t)(void *); |
| typedef void *(*bo_map_t)(void *, void *, unsigned flags); |
| typedef void (*bo_unmap_t)(void *); |
| typedef void (* emit_mi_report_t)(void *, void *, uint32_t, uint32_t); |
| typedef void (*emit_mi_flush_t)(void *); |
| |
| static void |
| brw_oa_batchbuffer_flush(void *c, const char *file, int line) |
| { |
| struct brw_context *ctx = c; |
| _intel_batchbuffer_flush_fence(ctx, -1, NULL, file, line); |
| } |
| |
| static void |
| brw_oa_emit_stall_at_pixel_scoreboard(void *c) |
| { |
| struct brw_context *brw = c; |
| brw_emit_end_of_pipe_sync(brw, PIPE_CONTROL_STALL_AT_SCOREBOARD); |
| } |
| |
| static void |
| brw_perf_store_register(struct brw_context *brw, struct brw_bo *bo, |
| uint32_t reg, uint32_t reg_size, |
| uint32_t offset) |
| { |
| if (reg_size == 8) { |
| brw_store_register_mem64(brw, bo, reg, offset); |
| } else { |
| assert(reg_size == 4); |
| brw_store_register_mem32(brw, bo, reg, offset); |
| } |
| } |
| |
| typedef void (*store_register_mem_t)(void *ctx, void *bo, |
| uint32_t reg, uint32_t reg_size, |
| uint32_t offset); |
| typedef bool (*batch_references_t)(void *batch, void *bo); |
| typedef void (*bo_wait_rendering_t)(void *bo); |
| typedef int (*bo_busy_t)(void *bo); |
| |
| static unsigned |
| brw_init_perf_query_info(struct gl_context *ctx) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| const struct gen_device_info *devinfo = &brw->screen->devinfo; |
| |
| struct gen_perf_context *perf_ctx = brw->perf_ctx; |
| struct gen_perf_config *perf_cfg = gen_perf_config(perf_ctx); |
| |
| if (perf_cfg) |
| return perf_cfg->n_queries; |
| |
| if (!oa_metrics_kernel_support(brw->screen->fd, devinfo)) |
| return 0; |
| |
| perf_cfg = gen_perf_new(ctx); |
| |
| perf_cfg->vtbl.bo_alloc = brw_oa_bo_alloc; |
| perf_cfg->vtbl.bo_unreference = (bo_unreference_t)brw_bo_unreference; |
| perf_cfg->vtbl.bo_map = (bo_map_t)brw_bo_map; |
| perf_cfg->vtbl.bo_unmap = (bo_unmap_t)brw_bo_unmap; |
| perf_cfg->vtbl.emit_stall_at_pixel_scoreboard = |
| (emit_mi_flush_t)brw_oa_emit_stall_at_pixel_scoreboard; |
| perf_cfg->vtbl.emit_mi_report_perf_count = |
| (emit_mi_report_t)brw_oa_emit_mi_report_perf_count; |
| perf_cfg->vtbl.batchbuffer_flush = brw_oa_batchbuffer_flush; |
| perf_cfg->vtbl.store_register_mem = |
| (store_register_mem_t) brw_perf_store_register; |
| perf_cfg->vtbl.batch_references = (batch_references_t)brw_batch_references; |
| perf_cfg->vtbl.bo_wait_rendering = (bo_wait_rendering_t)brw_bo_wait_rendering; |
| perf_cfg->vtbl.bo_busy = (bo_busy_t)brw_bo_busy; |
| |
| gen_perf_init_context(perf_ctx, perf_cfg, brw, brw->bufmgr, devinfo, |
| brw->hw_ctx, brw->screen->fd); |
| gen_perf_init_metrics(perf_cfg, devinfo, brw->screen->fd, |
| true /* pipeline stats */); |
| |
| return perf_cfg->n_queries; |
| } |
| |
| void |
| brw_init_performance_queries(struct brw_context *brw) |
| { |
| struct gl_context *ctx = &brw->ctx; |
| |
| ctx->Driver.InitPerfQueryInfo = brw_init_perf_query_info; |
| ctx->Driver.GetPerfQueryInfo = brw_get_perf_query_info; |
| ctx->Driver.GetPerfCounterInfo = brw_get_perf_counter_info; |
| ctx->Driver.NewPerfQueryObject = brw_new_perf_query_object; |
| ctx->Driver.DeletePerfQuery = brw_delete_perf_query; |
| ctx->Driver.BeginPerfQuery = brw_begin_perf_query; |
| ctx->Driver.EndPerfQuery = brw_end_perf_query; |
| ctx->Driver.WaitPerfQuery = brw_wait_perf_query; |
| ctx->Driver.IsPerfQueryReady = brw_is_perf_query_ready; |
| ctx->Driver.GetPerfQueryData = brw_get_perf_query_data; |
| } |