diff options
| -rw-r--r-- | benchmarks/.gitignore | 1 | ||||
| -rw-r--r-- | benchmarks/Makefile.am | 3 | ||||
| -rw-r--r-- | benchmarks/Makefile.sources | 1 | ||||
| -rw-r--r-- | benchmarks/gem_wait.c | 302 |
4 files changed, 307 insertions, 0 deletions
diff --git a/benchmarks/.gitignore b/benchmarks/.gitignore index 3937d46b..67afa18c 100644 --- a/benchmarks/.gitignore +++ b/benchmarks/.gitignore @@ -7,6 +7,7 @@ gem_exec_trace gem_mmap gem_prw gem_userptr_benchmark +gem_wait intel_upload_blit_large intel_upload_blit_large_gtt intel_upload_blit_large_map diff --git a/benchmarks/Makefile.am b/benchmarks/Makefile.am index 15e55b46..9ba0fda7 100644 --- a/benchmarks/Makefile.am +++ b/benchmarks/Makefile.am @@ -8,3 +8,6 @@ LDADD = $(top_builddir)/lib/libintel_tools.la $(DRM_LIBS) $(PCIACCESS_LIBS) $(CA benchmarks_LTLIBRARIES = gem_exec_tracer.la gem_exec_tracer_la_LDFLAGS = -module -avoid-version -no-undefined gem_exec_tracer_la_LIBADD = -ldl + +gem_wait_CFLAGS = $(AM_CFLAGS) $(THREAD_CFLAGS) +gem_wait_LDADD = $(LDADD) -lpthread diff --git a/benchmarks/Makefile.sources b/benchmarks/Makefile.sources index 94e0ea34..453f2234 100644 --- a/benchmarks/Makefile.sources +++ b/benchmarks/Makefile.sources @@ -14,5 +14,6 @@ benchmarks_PROGRAMS = \ gem_mmap \ gem_prw \ gem_userptr_benchmark \ + gem_wait \ kms_vblank \ $(NULL) diff --git a/benchmarks/gem_wait.c b/benchmarks/gem_wait.c new file mode 100644 index 00000000..912ffadc --- /dev/null +++ b/benchmarks/gem_wait.c @@ -0,0 +1,302 @@ +/* + * Copyright © 2011 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@chris-wilson.co.uk> + * + */ + +#include "igt.h" +#include <unistd.h> +#include <stdlib.h> +#include <stdint.h> +#include <stdio.h> +#include <string.h> +#include <fcntl.h> +#include <inttypes.h> +#include <pthread.h> +#include <signal.h> +#include <errno.h> +#include <sys/stat.h> +#include <sys/ioctl.h> +#include <sys/time.h> +#include <time.h> +#include <math.h> + +#include "drm.h" + +#define LOCAL_I915_EXEC_NO_RELOC (1<<11) +#define LOCAL_I915_EXEC_HANDLE_LUT (1<<12) + +#define COPY_BLT_CMD (2<<29|0x53<<22|0x6) +#define BLT_WRITE_ALPHA (1<<21) +#define BLT_WRITE_RGB (1<<20) +#define BLT_SRC_TILED (1<<15) +#define BLT_DST_TILED (1<<11) + +#define OBJECT 1024*1024 + +static int has_64bit_reloc; + +static int gem_linear_blt(int fd, + uint32_t *batch, + int offset, + uint32_t src, + uint32_t dst, + uint32_t length, + struct drm_i915_gem_relocation_entry *reloc) +{ + uint32_t *b = batch + offset/4; + int height = length / (16 * 1024); + + igt_assert_lte(height, 1 << 16); + + if (height) { + int i = 0; + b[i++] = COPY_BLT_CMD | BLT_WRITE_ALPHA | BLT_WRITE_RGB; + if (has_64bit_reloc) + b[i-1]+=2; + b[i++] = 0xcc << 16 | 1 << 25 | 1 << 24 | (16*1024); + b[i++] = 0; + b[i++] = height << 16 | (4*1024); + b[i++] = 0; + reloc->offset = (b-batch+4) * sizeof(uint32_t); + reloc->delta = 0; + reloc->target_handle = dst; + reloc->read_domains = I915_GEM_DOMAIN_RENDER; + reloc->write_domain = I915_GEM_DOMAIN_RENDER; + reloc->presumed_offset = 0; + reloc++; + if (has_64bit_reloc) + b[i++] = 0; /* FIXME */ + + b[i++] = 0; + b[i++] = 16*1024; + b[i++] = 0; + reloc->offset = (b-batch+7) * sizeof(uint32_t); + if (has_64bit_reloc) + reloc->offset += sizeof(uint32_t); + reloc->delta = 0; + reloc->target_handle = src; + reloc->read_domains = I915_GEM_DOMAIN_RENDER; + reloc->write_domain = 0; + reloc->presumed_offset = 0; + reloc++; + if (has_64bit_reloc) + b[i++] = 0; /* FIXME */ + + b += i; + length -= height * 16*1024; + } + + if (length) { + int i = 0; + b[i++] = COPY_BLT_CMD | BLT_WRITE_ALPHA | BLT_WRITE_RGB; + if (has_64bit_reloc) + b[i-1]+=2; + b[i++] = 0xcc << 16 | 1 << 25 | 1 << 24 | (16*1024); + b[i++] = height << 16; + b[i++] = (1+height) << 16 | (length / 4); + b[i++] = 0; + reloc->offset = (b-batch+4) * sizeof(uint32_t); + reloc->delta = 0; + reloc->target_handle = dst; + reloc->read_domains = I915_GEM_DOMAIN_RENDER; + reloc->write_domain = I915_GEM_DOMAIN_RENDER; + reloc->presumed_offset = 0; + reloc++; + if (has_64bit_reloc) + b[i++] = 0; /* FIXME */ + + b[i++] = height << 16; + b[i++] = 16*1024; + b[i++] = 0; + reloc->offset = (b-batch+7) * sizeof(uint32_t); + if (has_64bit_reloc) + reloc->offset += sizeof(uint32_t); + reloc->delta = 0; + reloc->target_handle = src; + reloc->read_domains = I915_GEM_DOMAIN_RENDER; + reloc->write_domain = 0; + reloc->presumed_offset = 0; + reloc++; + if (has_64bit_reloc) + b[i++] = 0; /* FIXME */ + + b += i; + } + + b[0] = MI_BATCH_BUFFER_END; + b[1] = 0; + + return (b+2 - batch) * sizeof(uint32_t); +} + +static int __gem_execbuf(int fd, struct drm_i915_gem_execbuffer2 *execbuf) +{ + int err = 0; + if (drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, execbuf)) + err = -errno; + return err; +} + +static void waiter(int child) +{ + struct drm_i915_gem_execbuffer2 execbuf; + struct drm_i915_gem_exec_object2 exec[3]; + struct drm_i915_gem_relocation_entry reloc[2*4096/32]; + uint32_t *buf, handle, src, dst; + int fd, len, gen, nreloc, last = 0; + int ring; + + fd = drm_open_driver(DRIVER_INTEL); + handle = gem_create(fd, 4096); + buf = gem_mmap__cpu(fd, handle, 0, 4096, PROT_WRITE); + + gen = intel_gen(intel_get_drm_devid(fd)); + has_64bit_reloc = gen >= 8; + + src = gem_create(fd, OBJECT); + dst = gem_create(fd, OBJECT); + + len = gem_linear_blt(fd, buf, 0, 0, 1, OBJECT, reloc); + + memset(exec, 0, sizeof(exec)); + exec[0].handle = src; + exec[1].handle = dst; + + exec[2].handle = handle; + if (has_64bit_reloc) + exec[2].relocation_count = len > 56 ? 4 : 2; + else + exec[2].relocation_count = len > 40 ? 4 : 2; + exec[2].relocs_ptr = (uintptr_t)reloc; + + ring = 0; + if (gen >= 6) + ring = I915_EXEC_BLT; + + memset(&execbuf, 0, sizeof(execbuf)); + execbuf.buffers_ptr = (uintptr_t)exec; + execbuf.buffer_count = 3; + execbuf.batch_len = len; + execbuf.flags = ring; + execbuf.flags |= LOCAL_I915_EXEC_HANDLE_LUT; + execbuf.flags |= LOCAL_I915_EXEC_NO_RELOC; + + if (__gem_execbuf(fd, &execbuf)) { + gem_set_domain(fd, handle, I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU); + len = gem_linear_blt(fd, buf, 0, src, dst, OBJECT, reloc); + igt_assert(len == execbuf.batch_len); + execbuf.flags = ring; + gem_execbuf(fd, &execbuf); + } + gem_sync(fd, handle); + + if (execbuf.flags & LOCAL_I915_EXEC_HANDLE_LUT) { + src = 0; + dst = 1; + } + + nreloc = exec[2].relocation_count; + while (execbuf.batch_len + len <= 4096) { + last = len - 8; + len = gem_linear_blt(fd, buf, len - 8, + src, dst, OBJECT, + reloc + exec[2].relocation_count); + exec[2].relocation_count += nreloc; + } + munmap(buf, 4096); + + execbuf.batch_len = len; + gem_execbuf(fd, &execbuf); + usleep(0); + + execbuf.batch_len = len - last; + execbuf.batch_start_offset = last; + for (int loop = 0; loop < 16*1024; loop++) + gem_execbuf(fd, &execbuf); + usleep(0); + + execbuf.batch_len = len; + execbuf.batch_start_offset = 0; + gem_execbuf(fd, &execbuf); + + gem_sync(fd, handle); + + close(fd); +} + +static void *thread(void *arg) +{ + uint64_t *c = arg; + + pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL); + + while (1) + __sync_fetch_and_add(c, 1); + + return NULL; +} + +static int run(int num_waiters) +{ + int num_cpus = sysconf(_SC_NPROCESSORS_ONLN); + pthread_t *threads = calloc(num_cpus, sizeof(pthread_t)); + uint64_t *counters = calloc(num_cpus, 8*sizeof(uint64_t)); + uint64_t count; + + for (int n = 0; n < num_cpus; n++) + pthread_create(&threads[n], NULL, thread, &counters[8*n]); + + igt_fork(child, num_waiters) + waiter(child); + igt_waitchildren(); + + count = 0; + for (int n = 0; n < num_cpus; n++) { + pthread_cancel(threads[n]); + __sync_synchronize(); + count += counters[8*n]; + } + printf("%llu\n", (long long unsigned)count); + + return 0; +} + +int main(int argc, char **argv) +{ + int num_waiters = 128; + int c; + + while ((c = getopt (argc, argv, "w:")) != -1) { + switch (c) { + case 'w': + num_waiters = atoi(optarg); + if (num_waiters < 1) + num_waiters = 1; + break; + } + } + + return run(num_waiters); +} |