| /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */ |
| |
| /* |
| * Copyright (C) 2014 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> |
| */ |
| |
| #ifndef FREEDRENO_QUERY_HW_H_ |
| #define FREEDRENO_QUERY_HW_H_ |
| |
| #include "util/u_double_list.h" |
| |
| #include "freedreno_query.h" |
| #include "freedreno_context.h" |
| |
| |
| /* |
| * HW Queries: |
| * |
| * See: https://github.com/freedreno/freedreno/wiki/Queries#hardware-queries |
| * |
| * Hardware queries will be specific to gpu generation, but they need |
| * some common infrastructure for triggering start/stop samples at |
| * various points (for example, to exclude mem2gmem/gmem2mem or clear) |
| * as well as per tile tracking. |
| * |
| * NOTE: in at least some cases hw writes sample values to memory addr |
| * specified in some register. So we don't really have the option to |
| * just sample the same counter multiple times for multiple different |
| * queries with the same query_type. So we cache per sample provider |
| * the most recent sample since the last draw. This way multiple |
| * sample periods for multiple queries can reference the same sample. |
| * |
| * fd_hw_sample_provider: |
| * - one per query type, registered/implemented by gpu generation |
| * specific code |
| * - can construct fd_hw_samples on demand |
| * - most recent sample (since last draw) cached so multiple |
| * different queries can ref the same sample |
| * |
| * fd_hw_sample: |
| * - abstracts one snapshot of counter value(s) across N tiles |
| * - backing object not allocated until submit time when number |
| * of samples and number of tiles is known |
| * |
| * fd_hw_sample_period: |
| * - consists of start and stop sample |
| * - a query accumulates a list of sample periods |
| * - the query result is the sum of the sample periods |
| */ |
| |
| struct fd_hw_sample_provider { |
| unsigned query_type; |
| |
| /* stages applicable to the query type: */ |
| enum fd_render_stage active; |
| |
| /* when a new sample is required, emit appropriate cmdstream |
| * and return a sample object: |
| */ |
| struct fd_hw_sample *(*get_sample)(struct fd_context *ctx, |
| struct fd_ringbuffer *ring); |
| |
| /* accumulate the results from specified sample period: */ |
| void (*accumulate_result)(struct fd_context *ctx, |
| const void *start, const void *end, |
| union pipe_query_result *result); |
| }; |
| |
| struct fd_hw_sample { |
| struct pipe_reference reference; /* keep this first */ |
| |
| /* offset and size of the sample are know at the time the |
| * sample is constructed. |
| */ |
| uint32_t size; |
| uint32_t offset; |
| |
| /* backing object, offset/stride/etc are determined not when |
| * the sample is constructed, but when the batch is submitted. |
| * This way we can defer allocation until total # of requested |
| * samples, and total # of tiles, is known. |
| */ |
| struct fd_bo *bo; |
| uint32_t num_tiles; |
| uint32_t tile_stride; |
| }; |
| |
| struct fd_hw_sample_period; |
| |
| struct fd_hw_query { |
| struct fd_query base; |
| |
| const struct fd_hw_sample_provider *provider; |
| |
| /* list of fd_hw_sample_period in previous submits: */ |
| struct list_head periods; |
| |
| /* list of fd_hw_sample_period's in current submit: */ |
| struct list_head current_periods; |
| |
| /* if active and not paused, the current sample period (not |
| * yet added to current_periods): |
| */ |
| struct fd_hw_sample_period *period; |
| |
| struct list_head list; /* list-node in ctx->active_queries */ |
| }; |
| |
| static inline struct fd_hw_query * |
| fd_hw_query(struct fd_query *q) |
| { |
| return (struct fd_hw_query *)q; |
| } |
| |
| struct fd_query * fd_hw_create_query(struct fd_context *ctx, unsigned query_type); |
| /* helper for sample providers: */ |
| struct fd_hw_sample * fd_hw_sample_init(struct fd_context *ctx, uint32_t size); |
| /* don't call directly, use fd_hw_sample_reference() */ |
| void __fd_hw_sample_destroy(struct fd_context *ctx, struct fd_hw_sample *samp); |
| void fd_hw_query_prepare(struct fd_context *ctx, uint32_t num_tiles); |
| void fd_hw_query_prepare_tile(struct fd_context *ctx, uint32_t n, |
| struct fd_ringbuffer *ring); |
| void fd_hw_query_set_stage(struct fd_context *ctx, |
| struct fd_ringbuffer *ring, enum fd_render_stage stage); |
| void fd_hw_query_register_provider(struct pipe_context *pctx, |
| const struct fd_hw_sample_provider *provider); |
| void fd_hw_query_init(struct pipe_context *pctx); |
| void fd_hw_query_fini(struct pipe_context *pctx); |
| |
| static inline void |
| fd_hw_sample_reference(struct fd_context *ctx, |
| struct fd_hw_sample **ptr, struct fd_hw_sample *samp) |
| { |
| struct fd_hw_sample *old_samp = *ptr; |
| |
| if (pipe_reference(&(*ptr)->reference, &samp->reference)) |
| __fd_hw_sample_destroy(ctx, old_samp); |
| if (ptr) |
| *ptr = samp; |
| } |
| |
| #endif /* FREEDRENO_QUERY_HW_H_ */ |