From: Chris Wilson Date: Wed, 14 Nov 2012 12:15:01 +0000 (+0000) Subject: tests: Benchmark new API for using a LUT with the execbuffer X-Git-Tag: intel-gpu-tools-1.4~816 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=230d77f1d0069a48d83b9829573712935d49fbd5;p=platform%2Fupstream%2Fintel-gpu-tools.git tests: Benchmark new API for using a LUT with the execbuffer Signed-off-by: Chris Wilson --- diff --git a/tests/Makefile.am b/tests/Makefile.am index c0ed9d6..20b7324 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -41,6 +41,7 @@ TESTS_progs = \ gem_exec_faulting_reloc \ gem_readwrite \ gem_lut_handle \ + gem_exec_lut_handle \ gem_mmap \ gem_mmap_offset_exhaustion \ gem_hangcheck_forcewake \ diff --git a/tests/gem_exec_lut_handle.c b/tests/gem_exec_lut_handle.c new file mode 100644 index 0000000..218e8ca --- /dev/null +++ b/tests/gem_exec_lut_handle.c @@ -0,0 +1,175 @@ +/* + * Copyright © 2012 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 + * + */ + +/* Exercises the basic execbuffer using theh andle LUT interface */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "drm.h" +#include "i915_drm.h" +#include "drmtest.h" + +#define MI_BATCH_BUFFER_END (0xA<<23) +#define BATCH_SIZE (1024*1024) + +#define LOCAL_I915_EXEC_NO_RELOC (1<<11) +#define LOCAL_I915_EXEC_HANDLE_LUT (1<<12) + +#define MAX_NUM_EXEC 2048 +#define MAX_NUM_RELOC 4096 + +#define USE_LUT 0x1 +#define SKIP_RELOC 0x2 +#define NO_RELOC 0x4 + +struct drm_i915_gem_exec_object2 gem_exec[MAX_NUM_EXEC+1]; +struct drm_i915_gem_relocation_entry gem_reloc[MAX_NUM_RELOC]; + +static uint32_t state = 0x12345678; + +static uint32_t +hars_petruska_f54_1_random (void) +{ +#define rol(x,k) ((x << k) | (x >> (32-k))) + return state = (state ^ rol (state, 5) ^ rol (state, 24)) + 0x37798849; +#undef rol +} + + +static int exec(int fd, int num_exec, int num_relocs, unsigned flags) +{ + struct drm_i915_gem_execbuffer2 execbuf; + struct drm_i915_gem_exec_object2 *objects; + int i; + + gem_exec[MAX_NUM_EXEC].relocation_count = num_relocs; + gem_exec[MAX_NUM_EXEC].relocs_ptr = (uintptr_t) gem_reloc; + + objects = gem_exec + MAX_NUM_EXEC - num_exec; + + for (i = 0; i < num_relocs; i++) { + int target = hars_petruska_f54_1_random() % num_exec; + gem_reloc[i].offset = 1024; + gem_reloc[i].delta = 0; + gem_reloc[i].target_handle = + flags & USE_LUT ? target : objects[target].handle; + gem_reloc[i].read_domains = I915_GEM_DOMAIN_RENDER; + gem_reloc[i].write_domain = 0; + gem_reloc[i].presumed_offset = 0; + if (flags & SKIP_RELOC) + gem_reloc[i].presumed_offset = objects[target].offset; + } + + execbuf.buffers_ptr = (uintptr_t)objects; + execbuf.buffer_count = num_exec + 1; + execbuf.batch_start_offset = 0; + execbuf.batch_len = 8; + execbuf.cliprects_ptr = 0; + execbuf.num_cliprects = 0; + execbuf.DR1 = 0; + execbuf.DR4 = 0; + execbuf.flags = 0; + if (flags & USE_LUT) + execbuf.flags |= LOCAL_I915_EXEC_HANDLE_LUT; + if (flags & NO_RELOC) + execbuf.flags |= LOCAL_I915_EXEC_NO_RELOC; + i915_execbuffer2_set_context_id(execbuf, 0); + execbuf.rsvd2 = 0; + + return drmIoctl(fd, + DRM_IOCTL_I915_GEM_EXECBUFFER2, + &execbuf); +} + +#define ELAPSED(a,b) (1e6*((b)->tv_sec - (a)->tv_sec) + ((b)->tv_usec - (a)->tv_usec)) +int main(int argc, char **argv) +{ + uint32_t batch[2] = {MI_BATCH_BUFFER_END}; + int fd, n, m, count; + const struct { + const char *name; + unsigned int flags; + } pass[] = { + { .name = "relocation", .flags = 0 }, + { .name = "skip-relocs", .flags = SKIP_RELOC }, + { .name = "no-relocs", .flags = NO_RELOC }, + { .name = NULL }, + }, *p; + + fd = drm_open_any(); + + for (n = 0; n < MAX_NUM_EXEC; n++) { + gem_exec[n].handle = gem_create(fd, 4096); + gem_exec[n].relocation_count = 0; + gem_exec[n].relocs_ptr = 0; + gem_exec[n].alignment = 0; + gem_exec[n].offset = 0; + gem_exec[n].flags = 0; + gem_exec[n].rsvd1 = 0; + gem_exec[n].rsvd2 = 0; + } + + gem_exec[n].handle = gem_create(fd, 4096); + gem_write(fd, gem_exec[n].handle, 0, batch, sizeof(batch)); + + do_or_die(exec(fd, MAX_NUM_EXEC, 0, USE_LUT)); + + for (p = pass; p->name != NULL; p++) { + for (n = 1; n <= MAX_NUM_EXEC; n *= 2) { + for (m = 1; m <= MAX_NUM_RELOC; m *= 2) { + struct timeval start, end; + double elapsed[2]; + + gettimeofday(&start, NULL); + for (count = 0; count < 1000; count++) + do_or_die(exec(fd, n, m, 0 | p->flags)); + gettimeofday(&end, NULL); + gem_sync(fd, gem_exec[MAX_NUM_EXEC].handle); + elapsed[0] = ELAPSED(&start, &end) / 1000.; + + gettimeofday(&start, NULL); + for (count = 0; count < 1000; count++) + do_or_die(exec(fd, n, m, USE_LUT | p->flags)); + gettimeofday(&end, NULL); + gem_sync(fd, gem_exec[MAX_NUM_EXEC].handle); + elapsed[1] = ELAPSED(&start, &end) / 1000.; + + printf("%s: buffer_count=%d, reloc_count=%d: old=%f us, lut=%f us\n", + p->name, n, m, elapsed[0], elapsed[1]); + } + } + } + + return 0; +}