blob: 8c0453f6f54e9e8f079417d0eebc3c73c06be3af [file] [log] [blame]
/*
* 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();
}