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Diffstat (limited to 'tests/gem_exec_blt.c')
| -rw-r--r-- | tests/gem_exec_blt.c | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/tests/gem_exec_blt.c b/tests/gem_exec_blt.c new file mode 100644 index 00000000..eb5ae668 --- /dev/null +++ b/tests/gem_exec_blt.c @@ -0,0 +1,263 @@ +/* + * 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 <unistd.h> +#include <stdlib.h> +#include <stdint.h> +#include <stdio.h> +#include <string.h> +#include <assert.h> +#include <fcntl.h> +#include <inttypes.h> +#include <errno.h> +#include <sys/stat.h> +#include <sys/ioctl.h> +#include <sys/mman.h> +#include <sys/time.h> +#include "drm.h" +#include "i915_drm.h" +#include "drmtest.h" +#include "intel_chipset.h" +#include "intel_gpu_tools.h" + +#define OBJECT_SIZE 16384 + +#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) + +static int gem_linear_blt(uint32_t *batch, + uint32_t src, + uint32_t dst, + uint32_t length, + struct drm_i915_gem_relocation_entry *reloc) +{ + uint32_t *b = batch; + int height = length / (16 * 1024); + + assert(height <= 1<<16); + + if (height) { + b[0] = COPY_BLT_CMD | BLT_WRITE_ALPHA | BLT_WRITE_RGB; + b[1] = 0xcc << 16 | 1 << 25 | 1 << 24 | (16*1024); + b[2] = 0; + b[3] = height << 16 | (4*1024); + b[4] = 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++; + + b[5] = 0; + b[6] = 16*1024; + b[7] = 0; + reloc->offset = (b-batch+7) * 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++; + + b += 8; + length -= height * 16*1024; + } + + if (length) { + b[0] = COPY_BLT_CMD | BLT_WRITE_ALPHA | BLT_WRITE_RGB; + b[1] = 0xcc << 16 | 1 << 25 | 1 << 24 | (16*1024); + b[2] = height << 16; + b[3] = (1+height) << 16 | (length / 4); + b[4] = 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++; + + b[5] = height << 16; + b[6] = 16*1024; + b[7] = 0; + reloc->offset = (b-batch+7) * 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++; + + b += 8; + } + + b[0] = MI_BATCH_BUFFER_END; + b[1] = 0; + + return (b+2 - batch) * sizeof(uint32_t); +} + +static int gem_exec(int fd, struct drm_i915_gem_execbuffer2 *execbuf, int loops) +{ + int ret = 0; + + while (loops-- && ret == 0) { + ret = drmIoctl(fd, + DRM_IOCTL_I915_GEM_EXECBUFFER2, + execbuf); + } + + return ret; +} + +static double elapsed(const struct timeval *start, + const struct timeval *end, + int loop) +{ + return (1e6*(end->tv_sec - start->tv_sec) + (end->tv_usec - start->tv_usec))/loop; +} + +static const char *bytes_per_sec(char *buf, double v) +{ + const char *order[] = { + "", + "KiB", + "MiB", + "GiB", + "TiB", + "PiB", + NULL, + }, **o = order; + + while (v > 1024 && o[1]) { + v /= 1024; + o++; + } + sprintf(buf, "%.1f%s/s", v, *o); + return buf; +} + +static void run(int object_size) +{ + struct drm_i915_gem_execbuffer2 execbuf; + struct drm_i915_gem_exec_object2 exec[3]; + struct drm_i915_gem_relocation_entry reloc[4]; + uint32_t buf[20]; + uint32_t handle, src, dst; + int fd, len, count; + int ring; + + fd = drm_open_any(); + handle = gem_create(fd, 4096); + src = gem_create(fd, object_size); + dst = gem_create(fd, object_size); + + len = gem_linear_blt(buf, src, dst, object_size, reloc); + gem_write(fd, handle, 0, buf, len); + + exec[0].handle = src; + exec[0].relocation_count = 0; + exec[0].relocs_ptr = 0; + exec[0].alignment = 0; + exec[0].offset = 0; + exec[0].flags = 0; + exec[0].rsvd1 = 0; + exec[0].rsvd2 = 0; + + exec[1].handle = dst; + exec[1].relocation_count = 0; + exec[1].relocs_ptr = 0; + exec[1].alignment = 0; + exec[1].offset = 0; + exec[1].flags = 0; + exec[1].rsvd1 = 0; + exec[1].rsvd2 = 0; + + exec[2].handle = handle; + exec[2].relocation_count = len > 40 ? 4 : 2; + exec[2].relocs_ptr = (uintptr_t)reloc; + exec[2].alignment = 0; + exec[2].offset = 0; + exec[2].flags = 0; + exec[2].rsvd1 = 0; + exec[2].rsvd2 = 0; + + ring = 0; + if (HAS_BLT_RING(intel_get_drm_devid(fd))) + ring = I915_EXEC_BLT; + + execbuf.buffers_ptr = (uintptr_t)exec; + execbuf.buffer_count = 3; + execbuf.batch_start_offset = 0; + execbuf.batch_len = len; + execbuf.cliprects_ptr = 0; + execbuf.num_cliprects = 0; + execbuf.DR1 = 0; + execbuf.DR4 = 0; + execbuf.flags = ring; + i915_execbuffer2_set_context_id(execbuf, 0); + execbuf.rsvd2 = 0; + + for (count = 1; count <= 1<<17; count <<= 1) { + struct timeval start, end; + + gettimeofday(&start, NULL); + if (gem_exec(fd, &execbuf, count)) + exit(1); + gem_sync(fd, handle); + gettimeofday(&end, NULL); + printf("Time to blt %d bytes x %6d: %7.3fµs, %s\n", + object_size, count, + elapsed(&start, &end, count), + bytes_per_sec((char *)buf, object_size/elapsed(&start, &end, count)*1e6)); + fflush(stdout); + } + gem_close(fd, handle); + + close(fd); +} + +int main(int argc, char **argv) +{ + int i; + + if (argc > 1) { + for (i = 1; i < argc; i++) { + int object_size = atoi(argv[i]); + if (object_size) + run((object_size + 3) & -4); + } + } else + run(OBJECT_SIZE); + + return 0; +} |