Read/write access speed is covered by
i915_selftests/perf_memory_regions.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Ashutosh Dixit <ashutosh.dixit@xxxxxxxxx>
Cc: Matthew Auld <matthew.auld@xxxxxxxxx>
---
benchmarks/Makefile.sources | 1 -
benchmarks/gem_mmap.c | 199 ------------------------------------
benchmarks/meson.build | 1 -
3 files changed, 201 deletions(-)
delete mode 100644 benchmarks/gem_mmap.c
diff --git a/benchmarks/Makefile.sources b/benchmarks/Makefile.sources
index 86928df5c..ee045fb30 100644
--- a/benchmarks/Makefile.sources
+++ b/benchmarks/Makefile.sources
@@ -10,7 +10,6 @@ benchmarks_prog_list = \
gem_exec_reloc \
gem_exec_trace \
gem_latency \
- gem_mmap \
gem_prw \
gem_set_domain \
gem_syslatency \
diff --git a/benchmarks/gem_mmap.c b/benchmarks/gem_mmap.c
deleted file mode 100644
index d3d4ad310..000000000
--- a/benchmarks/gem_mmap.c
+++ /dev/null
@@ -1,199 +0,0 @@
-/*
- * Copyright © 2011-2015 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.
- *
- * Authors:
- * Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
- *
- */
-
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <string.h>
-#include <fcntl.h>
-#include <inttypes.h>
-#include <errno.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <sys/time.h>
-#include <time.h>
-
-#include "drm.h"
-#include "ioctl_wrappers.h"
-#include "drmtest.h"
-#include "igt_aux.h"
-#include "igt_stats.h"
-#include "i915/gem_mman.h"
-
-#define OBJECT_SIZE (1<<23)
-
-static double elapsed(const struct timespec *start,
- const struct timespec *end)
-{
- return (end->tv_sec - start->tv_sec) + 1e-9*(end->tv_nsec - start->tv_nsec);
-}
-
-int main(int argc, char **argv)
-{
- int fd = drm_open_driver(DRIVER_INTEL);
- enum map {CPU, GTT, WC} map = CPU;
- enum dir {READ, WRITE, CLEAR, FAULT} dir = READ;
- int tiling = I915_TILING_NONE;
- struct timespec start, end;
- void *buf = malloc(OBJECT_SIZE);
- uint32_t handle;
- void *ptr, *src, *dst;
- int reps = 1;
- int loops;
- int c;
-
- while ((c = getopt (argc, argv, "m:d:r:t:")) != -1) {
- switch (c) {
- case 'm':
- if (strcmp(optarg, "cpu") == 0)
- map = CPU;
- else if (strcmp(optarg, "gtt") == 0)
- map = GTT;
- else if (strcmp(optarg, "wc") == 0)
- map = WC;
- else
- abort();
- break;
-
- case 'd':
- if (strcmp(optarg, "read") == 0)
- dir = READ;
- else if (strcmp(optarg, "write") == 0)
- dir = WRITE;
- else if (strcmp(optarg, "clear") == 0)
- dir = CLEAR;
- else if (strcmp(optarg, "fault") == 0)
- dir = FAULT;
- else
- abort();
- break;
-
- case 't':
- if (strcmp(optarg, "x") == 0)
- tiling = I915_TILING_X;
- else if (strcmp(optarg, "y") == 0)
- tiling = I915_TILING_Y;
- else if (strcmp(optarg, "none") == 0)
- tiling = I915_TILING_NONE;
- else
- abort();
- break;
-
- case 'r':
- reps = atoi(optarg);
- if (reps < 1)
- reps = 1;
- break;
-
- default:
- break;
- }
- }
-
- handle = gem_create(fd, OBJECT_SIZE);
- switch (map) {
- case CPU:
- ptr = gem_mmap__cpu(fd, handle, 0, OBJECT_SIZE, PROT_WRITE);
- gem_set_domain(fd, handle, I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
- break;
- case GTT:
- ptr = gem_mmap__gtt(fd, handle, OBJECT_SIZE, PROT_WRITE);
- gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
- break;
- case WC:
- ptr = gem_mmap__wc(fd, handle, 0, OBJECT_SIZE, PROT_WRITE);
- gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
- break;
- default:
- abort();
- }
-
- gem_set_tiling(fd, handle, tiling, 512);
-
- if (dir == READ) {
- src = ptr;
- dst = buf;
- } else {
- src = buf;
- dst = ptr;
- }
-
- clock_gettime(CLOCK_MONOTONIC, &start);
- switch (dir) {
- case CLEAR:
- case FAULT:
- memset(dst, 0, OBJECT_SIZE);
- break;
- default:
- memcpy(dst, src, OBJECT_SIZE);
- break;
- }
- clock_gettime(CLOCK_MONOTONIC, &end);
-
- loops = 2 / elapsed(&start, &end);
- while (reps--) {
- clock_gettime(CLOCK_MONOTONIC, &start);
- for (c = 0; c < loops; c++) {
- int page;
-
- switch (dir) {
- case CLEAR:
- memset(dst, 0, OBJECT_SIZE);
- break;
- case FAULT:
- munmap(ptr, OBJECT_SIZE);
- switch (map) {
- case CPU:
- ptr = gem_mmap__cpu(fd, handle, 0, OBJECT_SIZE, PROT_WRITE);
- break;
- case GTT:
- ptr = gem_mmap__gtt(fd, handle, OBJECT_SIZE, PROT_WRITE);
- break;
- case WC:
- ptr = gem_mmap__wc(fd, handle, 0, OBJECT_SIZE, PROT_WRITE);
- break;
- default:
- abort();
- }
- for (page = 0; page < OBJECT_SIZE; page += 4096) {
- uint32_t *x = (uint32_t *)ptr + page/4;
- __asm__ __volatile__("": : :"memory");
- page += *x; /* should be zero! */
- }
- break;
- default:
- memcpy(dst, src, OBJECT_SIZE);
- break;
- }
- }
- clock_gettime(CLOCK_MONOTONIC, &end);
- printf("%7.3f\n", OBJECT_SIZE / elapsed(&start, &end) * loops / (1024*1024));
- }
-
- return 0;
-}
diff --git a/benchmarks/meson.build b/benchmarks/meson.build
index 397f3b8d2..ef93193b7 100644
--- a/benchmarks/meson.build
+++ b/benchmarks/meson.build
@@ -8,7 +8,6 @@ benchmark_progs = [
'gem_exec_reloc',
'gem_exec_trace',
'gem_latency',
- 'gem_mmap',
'gem_prw',
'gem_set_domain',
'gem_syslatency',
--
2.25.0
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