| /* |
| * 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 <errno.h> |
| #include <sys/stat.h> |
| #include <sys/ioctl.h> |
| #include <sys/time.h> |
| #include "drm.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) |
| |
| #define LOCAL_I915_EXEC_NO_RELOC (1<<11) |
| #define LOCAL_I915_EXEC_HANDLE_LUT (1<<12) |
| |
| static int gem_linear_blt(int fd, |
| 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); |
| |
| igt_assert_lte(height, 1 << 16); |
| |
| if (height) { |
| int i = 0; |
| b[i++] = COPY_BLT_CMD | BLT_WRITE_ALPHA | BLT_WRITE_RGB; |
| if (intel_gen(intel_get_drm_devid(fd)) >= 8) |
| 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 (intel_gen(intel_get_drm_devid(fd)) >= 8) |
| b[i++] = 0; /* FIXME */ |
| |
| b[i++] = 0; |
| b[i++] = 16*1024; |
| b[i++] = 0; |
| reloc->offset = (b-batch+7) * sizeof(uint32_t); |
| if (intel_gen(intel_get_drm_devid(fd)) >= 8) |
| 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 (intel_gen(intel_get_drm_devid(fd)) >= 8) |
| 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 (intel_gen(intel_get_drm_devid(fd)) >= 8) |
| 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 (intel_gen(intel_get_drm_devid(fd)) >= 8) |
| b[i++] = 0; /* FIXME */ |
| |
| b[i++] = height << 16; |
| b[i++] = 16*1024; |
| b[i++] = 0; |
| reloc->offset = (b-batch+7) * sizeof(uint32_t); |
| if (intel_gen(intel_get_drm_devid(fd)) >= 8) |
| 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 (intel_gen(intel_get_drm_devid(fd)) >= 8) |
| b[i++] = 0; /* FIXME */ |
| |
| b += i; |
| } |
| |
| b[0] = MI_BATCH_BUFFER_END; |
| b[1] = 0; |
| |
| return (b+2 - batch) * sizeof(uint32_t); |
| } |
| |
| 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 int dcmp(const void *A, const void *B) |
| { |
| const double *a = A, *b = B; |
| if (*a < *b) |
| return -1; |
| else if (*a > *b) |
| return 1; |
| else |
| return 0; |
| } |
| |
| static void run(int object_size, bool dumb) |
| { |
| 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_driver(DRIVER_INTEL); |
| igt_require_gem(fd); |
| |
| if (dumb) |
| handle = kmstest_dumb_create(fd, 32, 32, 32, NULL, NULL); |
| else |
| handle = gem_create(fd, 4096); |
| |
| src = gem_create(fd, object_size); |
| dst = gem_create(fd, object_size); |
| |
| len = gem_linear_blt(fd, buf, 0, 1, object_size, reloc); |
| gem_write(fd, handle, 0, buf, len); |
| |
| memset(exec, 0, sizeof(exec)); |
| exec[0].handle = src; |
| exec[1].handle = dst; |
| |
| exec[2].handle = handle; |
| if (intel_gen(intel_get_drm_devid(fd)) >= 8) |
| exec[2].relocation_count = len > 56 ? 4 : 2; |
| else |
| exec[2].relocation_count = len > 40 ? 4 : 2; |
| exec[2].relocs_ptr = to_user_pointer(reloc); |
| |
| ring = 0; |
| if (HAS_BLT_RING(intel_get_drm_devid(fd))) |
| ring = I915_EXEC_BLT; |
| |
| memset(&execbuf, 0, sizeof(execbuf)); |
| execbuf.buffers_ptr = to_user_pointer(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 (drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf)) { |
| len = gem_linear_blt(fd, buf, src, dst, object_size, reloc); |
| igt_assert(len == execbuf.batch_len); |
| gem_write(fd, handle, 0, buf, len); |
| execbuf.flags = ring; |
| do_ioctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf); |
| } |
| gem_sync(fd, handle); |
| |
| for (count = 1; count <= 1<<12; count <<= 1) { |
| struct timeval start, end; |
| const int reps = 9; |
| double t[reps], sum; |
| int n; |
| |
| for (n = 0; n < reps; n++) { |
| gettimeofday(&start, NULL); |
| for (int loop = 0; loop < count; loop++) |
| gem_execbuf(fd, &execbuf); |
| gem_sync(fd, handle); |
| gettimeofday(&end, NULL); |
| t[n] = elapsed(&start, &end, count); |
| } |
| qsort(t, n, sizeof(double), dcmp); |
| sum = 0; |
| for (n = 2; n < reps - 2; n++) |
| sum += t[n]; |
| sum /= reps - 4; |
| igt_info("Time to blt %d bytes x %6d: %7.3fµs, %s\n", |
| object_size, count, sum, |
| bytes_per_sec((char *)buf, object_size/sum*1e6)); |
| fflush(stdout); |
| } |
| gem_close(fd, handle); |
| |
| close(fd); |
| } |
| |
| static int sysfs_read(const char *name) |
| { |
| char buf[4096]; |
| int sysfd; |
| int len; |
| |
| sprintf(buf, "/sys/class/drm/card%d/%s", |
| drm_get_card(), name); |
| sysfd = open(buf, O_RDONLY); |
| if (sysfd < 0) |
| return -1; |
| |
| len = read(sysfd, buf, sizeof(buf)-1); |
| close(sysfd); |
| if (len < 0) |
| return -1; |
| |
| buf[len] = '\0'; |
| return atoi(buf); |
| } |
| |
| static int sysfs_write(const char *name, int value) |
| { |
| char buf[4096]; |
| int sysfd; |
| int len; |
| |
| sprintf(buf, "/sys/class/drm/card%d/%s", |
| drm_get_card(), name); |
| sysfd = open(buf, O_WRONLY); |
| if (sysfd < 0) |
| return -1; |
| |
| len = sprintf(buf, "%d", value); |
| len = write(sysfd, buf, len); |
| close(sysfd); |
| |
| if (len < 0) |
| return len; |
| |
| return 0; |
| } |
| |
| static void set_auto_freq(void) |
| { |
| int min = sysfs_read("gt_RPn_freq_mhz"); |
| int max = sysfs_read("gt_RP0_freq_mhz"); |
| if (max <= min) |
| return; |
| |
| igt_debug("Setting min to %dMHz, and max to %dMHz\n", min, max); |
| sysfs_write("gt_min_freq_mhz", min); |
| sysfs_write("gt_max_freq_mhz", max); |
| } |
| |
| static void set_min_freq(void) |
| { |
| int min = sysfs_read("gt_RPn_freq_mhz"); |
| igt_require(min > 0); |
| igt_debug("Setting min/max to %dMHz\n", min); |
| igt_require(sysfs_write("gt_min_freq_mhz", min) == 0 && |
| sysfs_write("gt_max_freq_mhz", min) == 0); |
| } |
| |
| static void set_max_freq(void) |
| { |
| int max = sysfs_read("gt_RP0_freq_mhz"); |
| igt_require(max > 0); |
| igt_debug("Setting min/max to %dMHz\n", max); |
| igt_require(sysfs_write("gt_max_freq_mhz", max) == 0 && |
| sysfs_write("gt_min_freq_mhz", max) == 0); |
| } |
| |
| |
| int main(int argc, char **argv) |
| { |
| const struct { |
| const char *suffix; |
| void (*func)(void); |
| } rps[] = { |
| { "", set_auto_freq }, |
| { "-min", set_min_freq }, |
| { "-max", set_max_freq }, |
| { NULL, NULL }, |
| }, *r; |
| int min = -1, max = -1; |
| int i; |
| |
| igt_subtest_init(argc, argv); |
| |
| igt_skip_on_simulation(); |
| |
| if (argc > 1) { |
| for (i = 1; i < argc; i++) { |
| int object_size = atoi(argv[i]); |
| if (object_size) |
| run((object_size + 3) & -4, false); |
| } |
| _exit(0); /* blergh */ |
| } |
| |
| igt_fixture { |
| min = sysfs_read("gt_min_freq_mhz"); |
| max = sysfs_read("gt_max_freq_mhz"); |
| } |
| |
| for (r = rps; r->suffix; r++) { |
| igt_fixture r->func(); |
| |
| igt_subtest_f("cold%s", r->suffix) |
| run(OBJECT_SIZE, false); |
| |
| igt_subtest_f("normal%s", r->suffix) |
| run(OBJECT_SIZE, false); |
| |
| igt_subtest_f("dumb-buf%s", r->suffix) |
| run(OBJECT_SIZE, true); |
| } |
| |
| igt_fixture { |
| if (min > 0) |
| sysfs_write("gt_min_freq_mhz", min); |
| if (max > 0) |
| sysfs_write("gt_max_freq_mhz", max); |
| } |
| |
| igt_exit(); |
| } |