[Intel-gfx] [PATCH] igt/gem_create_stolen: Verifying extended gem_create ioctl
ankitprasad.r.sharma at intel.com
ankitprasad.r.sharma at intel.com
Wed Apr 29 02:32:20 PDT 2015
From: Ankitprasad Sharma <ankitprasad.r.sharma at intel.com>
This patch adds the testcases for verifying the new extended
gem_create ioctl. By means of this extended ioctl, memory
placement of the GEM object can be specified, i.e. either
shmem or stolen memory.
These testcases include functional tests and interface tests for
testing the gem_create ioctl call for stolen memory placement
v2: Testing pread/pwrite functionality for stolen backed objects,
added local struct for extended gem_create and gem_get_aperture,
until headers catch up (Chris)
Signed-off-by: Ankitprasad Sharma <ankitprasad.r.sharma at intel.com>
---
lib/ioctl_wrappers.c | 88 +++++++++++
lib/ioctl_wrappers.h | 28 ++++
tests/Makefile.sources | 1 +
tests/gem_create_stolen.c | 392 ++++++++++++++++++++++++++++++++++++++++++++++
tests/gem_pread.c | 43 +++++
tests/gem_pwrite.c | 42 +++++
6 files changed, 594 insertions(+)
create mode 100644 tests/gem_create_stolen.c
diff --git a/lib/ioctl_wrappers.c b/lib/ioctl_wrappers.c
index ff78ef1..5980067 100644
--- a/lib/ioctl_wrappers.c
+++ b/lib/ioctl_wrappers.c
@@ -379,6 +379,57 @@ void gem_sync(int fd, uint32_t handle)
gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
}
+bool gem_create__has_stolen_support(int fd)
+{
+ static int has_stolen_support = -1;
+ struct drm_i915_getparam gp;
+ int val = -1;
+
+ if (has_stolen_support < 0) {
+ memset(&gp, 0, sizeof(gp));
+ gp.param = 35; /* CREATE_VERSION */
+ gp.value = &val;
+
+ /* Do we have the extended gem_create_ioctl? */
+ ioctl(fd, DRM_IOCTL_I915_GETPARAM, &gp);
+ has_stolen_support = val >= 1;
+ }
+
+ return has_stolen_support;
+}
+
+#define LOCAL_IOCTL_I915_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_CREATE, struct local_i915_gem_create_v2)
+/**
+ * gem_create_stolen:
+ * @fd: open i915 drm file descriptor
+ * @size: desired size of the buffer
+ * @flags: desired placement i.e. stolen or shmem
+ *
+ * This wraps the new GEM_CREATE ioctl, which allocates a
+ * new gem buffer object of @size and placement based on @flags.
+ *
+ * Returns: The file-private handle of the created buffer object
+ */
+
+uint32_t gem_create_stolen(int fd, int size, uint32_t flags)
+{
+ struct local_i915_gem_create_v2 create;
+ int ret;
+
+ memset(&create, 0, sizeof(create));
+ create.handle = 0;
+ create.size = size;
+ create.flags = flags;
+ ret = drmIoctl(fd, LOCAL_IOCTL_I915_GEM_CREATE, &create);
+
+ if (ret < 0)
+ return 0;
+
+ errno = 0;
+ return create.handle;
+}
+
+
uint32_t __gem_create(int fd, int size)
{
struct drm_i915_gem_create create;
@@ -1016,6 +1067,43 @@ uint64_t gem_mappable_aperture_size(void)
return pci_dev->regions[bar].size;
}
+#define LOCAL_IOCTL_I915_GEM_GET_APERTURE DRM_IOR (DRM_COMMAND_BASE + DRM_I915_GEM_GET_APERTURE, struct local_i915_gem_get_aperture_v2)
+/**
+ * gem_stolen_size:
+ *
+ * Feature test macro to query the total size of the stolen region
+ *
+ * Returns: The total size of the stolen region
+ */
+uint64_t gem_stolen_size(fd)
+{
+ struct local_i915_gem_get_aperture_v2 aperture;
+
+ memset(&aperture, 0, sizeof(aperture));
+ aperture.aper_size = 256*1024*1024;
+ do_ioctl(fd, LOCAL_IOCTL_I915_GEM_GET_APERTURE, &aperture);
+
+ return aperture.stolen_size;
+}
+
+/**
+ * gem_available_stolen_size:
+ *
+ * Feature test macro to query the available size in the stolen region
+ *
+ * Returns: The available size in the stolen region
+ */
+uint64_t gem_available_stolen_size(fd)
+{
+ struct local_i915_gem_get_aperture_v2 aperture;
+
+ memset(&aperture, 0, sizeof(aperture));
+ aperture.aper_size = 256*1024*1024;
+ do_ioctl(fd, LOCAL_IOCTL_I915_GEM_GET_APERTURE, &aperture);
+
+ return aperture.stolen_available_size;
+}
+
/**
* gem_require_caching:
* @fd: open i915 drm file descriptor
diff --git a/lib/ioctl_wrappers.h b/lib/ioctl_wrappers.h
index ced7ef3..af76af0 100644
--- a/lib/ioctl_wrappers.h
+++ b/lib/ioctl_wrappers.h
@@ -56,6 +56,16 @@ void gem_read(int fd, uint32_t handle, uint32_t offset, void *buf, uint32_t leng
void gem_set_domain(int fd, uint32_t handle,
uint32_t read_domains, uint32_t write_domain);
void gem_sync(int fd, uint32_t handle);
+
+struct local_i915_gem_create_v2 {
+ uint64_t size;
+ uint32_t handle;
+ uint32_t pad;
+#define I915_CREATE_PLACEMENT_STOLEN (1<<0)
+ uint32_t flags;
+};
+bool gem_create__has_stolen_support(int fd);
+uint32_t gem_create_stolen(int fd, int size, uint32_t flags);
uint32_t __gem_create(int fd, int size);
uint32_t gem_create(int fd, int size);
void gem_execbuf(int fd, struct drm_i915_gem_execbuffer2 *execbuf);
@@ -67,6 +77,15 @@ bool gem_mmap__has_wc(int fd);
void *gem_mmap__wc(int fd, uint32_t handle, int offset, int size, int prot);
/**
+ * gem_require_stolen_support:
+ * @fd: open i915 drm file descriptor
+ *
+ * Test macro to query whether support for allocating objects from stolen
+ * memory is available. Automatically skips through igt_require() if not.
+ */
+#define gem_require_stolen_support(fd) \
+ igt_require(gem_create__has_stolen_support(fd))
+/**
* gem_require_mmap_wc:
* @fd: open i915 drm file descriptor
*
@@ -125,6 +144,15 @@ int gem_available_fences(int fd);
uint64_t gem_available_aperture_size(int fd);
uint64_t gem_aperture_size(int fd);
uint64_t gem_mappable_aperture_size(void);
+uint64_t gem_stolen_size(int fd);
+uint64_t gem_available_stolen_size(int fd);
+
+struct local_i915_gem_get_aperture_v2 {
+ __u64 aper_size;
+ __u64 aper_available_size;
+ __u64 stolen_size;
+ __u64 stolen_available_size;
+};
/* check functions which auto-skip tests by calling igt_skip() */
void gem_require_caching(int fd);
diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index a165978..9b2ee90 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -23,6 +23,7 @@ TESTS_progs_M = \
gem_caching \
gem_close_race \
gem_concurrent_blit \
+ gem_create_stolen \
gem_cs_tlb \
gem_ctx_param_basic \
gem_ctx_bad_exec \
diff --git a/tests/gem_create_stolen.c b/tests/gem_create_stolen.c
new file mode 100644
index 0000000..0224fc0
--- /dev/null
+++ b/tests/gem_create_stolen.c
@@ -0,0 +1,392 @@
+/*
+ * 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:
+ * Ankitprasad Sharma <ankitprasad.r.sharma at intel.com>
+ *
+ */
+
+/** @file gem_create_stolen.c
+ *
+ * This is a test for the extended gem_create ioctl, that includes allocation
+ * of object from stolen memory
+ *
+ * The goal is to simply ensure the basics work, and invalid input combinations
+ * are rejected.
+ */
+
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <getopt.h>
+
+#include <drm.h>
+
+#include "ioctl_wrappers.h"
+#include "intel_bufmgr.h"
+#include "intel_batchbuffer.h"
+#include "intel_io.h"
+#include "intel_chipset.h"
+#include "igt_aux.h"
+#include "drmtest.h"
+#include "drm.h"
+#include "i915_drm.h"
+
+#define CLEAR(s) memset(&s, 0, sizeof(s))
+#define SIZE 1024*1024
+
+static struct drm_intel_bufmgr *bufmgr;
+static struct intel_batchbuffer *batch;
+
+static void verify_copy_op(drm_intel_bo *src, drm_intel_bo *dest)
+{
+ uint32_t *virt, i, ret;
+ /* Fill the src BO with dwords */
+ ret = drm_intel_gem_bo_map_gtt(src);
+ igt_assert(!ret);
+
+ virt = src->virtual;
+ for (i = 0; i < SIZE/4; i++)
+ virt[i] = i;
+
+ intel_copy_bo(batch, dest, src, SIZE);
+
+ ret = drm_intel_gem_bo_map_gtt(dest);
+ igt_assert(!ret);
+
+ virt = dest->virtual;
+ /* verify */
+ for (i = 0; i < SIZE/4; i++) {
+ if (virt[i] != i) {
+ fprintf(stderr, "Expected 0x%08x, found 0x%08x "
+ "at offset 0x%08x\n",
+ i, virt[i], i * 4);
+ igt_assert(virt[i] == i);
+ }
+ }
+
+ drm_intel_bo_unmap(src);
+ drm_intel_bo_unmap(dest);
+}
+
+static void stolen_pwrite(int fd)
+{
+ drm_intel_bo *bo;
+ uint32_t buf[SIZE/4];
+ uint32_t handle = 0;
+ uint32_t *virt;
+ int i, ret = 0;
+
+ for (i = 0; i < SIZE/4; i ++)
+ buf[i] = 0xdead;
+
+ gem_require_stolen_support(fd);
+
+ handle = gem_create_stolen(fd, SIZE, I915_CREATE_PLACEMENT_STOLEN);
+ igt_assert(handle != 0);
+
+ gem_write(fd, handle, 0, buf, SIZE);
+ bo = gem_handle_to_libdrm_bo(bufmgr, fd, "bo", handle);
+
+ ret = drm_intel_gem_bo_map_gtt(bo);
+ igt_assert(!ret);
+
+ virt = bo->virtual;
+
+ for (i = 0; i < SIZE/4; i ++)
+ igt_assert(virt[i] == 0xdead);
+
+ drm_intel_bo_unmap(bo);
+ drm_intel_bo_unreference(bo);
+ gem_close(fd, handle);
+}
+
+static void stolen_pread(int fd)
+{
+ drm_intel_bo *bo;
+ uint32_t buf[SIZE/4];
+ uint32_t handle = 0;
+ uint32_t *virt;
+ int i, ret = 0;
+
+ CLEAR(buf);
+
+ gem_require_stolen_support(fd);
+
+ handle = gem_create_stolen(fd, SIZE, I915_CREATE_PLACEMENT_STOLEN);
+ igt_assert(handle != 0);
+
+ bo = gem_handle_to_libdrm_bo(bufmgr, fd, "bo", handle);
+
+ ret = drm_intel_gem_bo_map_gtt(bo);
+ igt_assert(!ret);
+
+ virt = bo->virtual;
+
+ for (i = 0; i < SIZE/4; i ++)
+ virt[i] = 0xdead;
+
+ drm_intel_bo_unmap(bo);
+ drm_intel_bo_unreference(bo);
+
+ gem_read(fd, handle, 0, buf, SIZE);
+
+ for (i = 0; i < SIZE/4; i ++)
+ igt_assert(buf[i] == 0xdead);
+
+ gem_close(fd, handle);
+}
+
+static void copy_test(int fd)
+{
+ drm_intel_bo *src, *dest;
+ uint32_t src_handle = 0, dest_handle = 0;
+ int ret = 0;
+
+ gem_require_stolen_support(fd);
+
+ src_handle = gem_create_stolen(fd, SIZE, I915_CREATE_PLACEMENT_STOLEN);
+ igt_assert(src_handle != 0);
+
+ dest_handle = gem_create_stolen(fd, SIZE, I915_CREATE_PLACEMENT_STOLEN);
+ igt_assert(dest_handle != 0);
+
+ src = gem_handle_to_libdrm_bo(bufmgr, fd, "src_bo", src_handle);
+ dest = gem_handle_to_libdrm_bo(bufmgr, fd, "dst_bo", dest_handle);
+
+ igt_assert(src != NULL);
+ igt_assert(dest != NULL);
+
+ verify_copy_op(src, dest);
+
+ drm_intel_bo_unreference(src);
+ drm_intel_bo_unreference(dest);
+ gem_close(fd, src_handle);
+ gem_close(fd, dest_handle);
+}
+
+static void verify_object_clear(int fd)
+{
+ drm_intel_bo *bo;
+ uint32_t handle = 0;
+ uint32_t *virt;
+ int i, ret = 0;
+
+ gem_require_stolen_support(fd);
+
+ handle = gem_create_stolen(fd, SIZE, I915_CREATE_PLACEMENT_STOLEN);
+ igt_assert(handle != 0);
+
+ bo = gem_handle_to_libdrm_bo(bufmgr, fd, "verify_bo", handle);
+ igt_assert(bo != NULL);
+
+ ret = drm_intel_gem_bo_map_gtt(bo);
+ igt_assert(ret == 0);
+
+ /* Verify if the BO is zeroed */
+ virt = bo->virtual;
+ for (i = 0; i < SIZE / 4; i++)
+ igt_assert(virt[i] == 0);
+
+ drm_intel_bo_unmap(bo);
+ drm_intel_bo_unreference(bo);
+ gem_close(fd, handle);
+}
+
+static void stolen_fill_purge_test(int fd)
+{
+ drm_intel_bo *bo;
+ int mret = 0, ret = 0, obj_count = 0, i = 0;
+ int _ret = 0, j = 0;
+ uint32_t handle[100] = {0};
+ uint32_t new_handle = 0;
+ uint32_t *virt;
+ int retained = 0;
+
+ gem_require_stolen_support(fd);
+
+ /* Exhaust Stolen space */
+ while(ret == 0) {
+ ret = -1;
+ handle[i] = gem_create_stolen(fd, SIZE,
+ I915_CREATE_PLACEMENT_STOLEN);
+ if (handle[i] != 0) {
+ ret = 0;
+ bo = gem_handle_to_libdrm_bo(bufmgr, fd,
+ "verify_bo", handle[i]);
+ igt_assert(bo != NULL);
+
+ _ret = drm_intel_gem_bo_map_gtt(bo);
+ igt_assert(_ret == 0);
+
+ virt = bo->virtual;
+ for (j = 0; j < SIZE / 4; j++)
+ virt[j] = 0xab;
+
+ drm_intel_bo_unmap(bo);
+ drm_intel_bo_unreference(bo);
+
+ obj_count++;
+ }
+
+ i++;
+ }
+
+ igt_assert(obj_count > 0);
+
+ igt_info("Available Stolen Size %u bytes\n",
+ gem_available_stolen_size(fd));
+ /* Mark all stolen objects purgeable */
+ for (i = 0; i < obj_count; i++)
+ retained = gem_madvise(fd, handle[i], I915_MADV_DONTNEED);
+
+ /* Try to allocate one more object */
+ new_handle = gem_create_stolen(fd, SIZE,
+ I915_CREATE_PLACEMENT_STOLEN);
+ igt_assert(new_handle != 0);
+
+ /* Check if the retained object's memory contents are intact */
+ for (i = 0; i < obj_count; i++) {
+ retained = gem_madvise(fd, handle[i], I915_MADV_WILLNEED);
+ if (retained) {
+ bo = gem_handle_to_libdrm_bo(bufmgr, fd,
+ "verify_bo", handle[i]);
+ igt_assert(bo != NULL);
+
+ _ret = drm_intel_gem_bo_map_gtt(bo);
+ igt_assert(_ret == 0);
+
+ virt = bo->virtual;
+ for (j = 0; j < SIZE / 4; j++)
+ igt_assert(virt[j] == 0xab);
+
+ drm_intel_bo_unmap(bo);
+ drm_intel_bo_unreference(bo);
+ }
+ }
+
+ gem_close(fd, new_handle);
+ for (i = 0; i < obj_count; i++)
+ gem_close(fd, handle[i]);
+}
+
+static void
+stolen_no_mmap(int fd)
+{
+ drm_intel_bo *bo;
+ int ret = 0;
+ uint32_t handle = 0;
+
+ gem_require_stolen_support(fd);
+
+ handle = gem_create_stolen(fd, SIZE, I915_CREATE_PLACEMENT_STOLEN);
+ igt_assert(handle != 0);
+
+ bo = gem_handle_to_libdrm_bo(bufmgr, fd, "mmap_bo", handle);
+ igt_assert(bo != NULL);
+
+ ret = drm_intel_bo_map(bo, 1);
+ igt_assert(ret != 0);
+
+ drm_intel_bo_unreference(bo);
+ gem_close(fd, handle);
+}
+
+static void invalid_flag_test(int fd)
+{
+ uint32_t handle = 0;
+
+ gem_require_stolen_support(fd);
+
+ handle = gem_create_stolen(fd, SIZE, ~I915_CREATE_PLACEMENT_STOLEN);
+
+ igt_assert(handle == 0);
+}
+
+igt_main
+{
+ int i, fd, gtt_size_total, gtt_size_mappable;
+ uint32_t devid;
+
+ igt_skip_on_simulation();
+
+ igt_fixture {
+ fd = drm_open_any();
+ devid = intel_get_drm_devid(fd);
+
+ drm_intel_get_aperture_sizes(fd, (size_t*)>t_size_total,
+ (size_t*)>t_size_mappable);
+ bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
+ batch = intel_batchbuffer_alloc(bufmgr, devid);
+ }
+
+ igt_info("Total Stolen Size %u bytes\n",
+ gem_stolen_size(fd));
+ igt_info("Available Stolen Size %u bytes\n",
+ gem_available_stolen_size(fd));
+
+ igt_subtest("stolen-invalid-flag")
+ invalid_flag_test(fd);
+
+ igt_subtest("stolen-clear")
+ verify_object_clear(fd);
+
+ /*
+ * stolen mem special cases - checking for non cpu mappable
+ */
+ igt_subtest("stolen-no-mmap")
+ stolen_no_mmap(fd);
+
+ /* checking for pread/pwrite interfaces */
+ igt_subtest("stolen-pwrite")
+ stolen_pwrite(fd);
+
+ igt_subtest("stolen-pread")
+ stolen_pread(fd);
+
+ /* Functional Test - blt copy */
+ igt_subtest("stolen-copy")
+ copy_test(fd);
+
+ /* Filling stolen completely and marking all the objects
+ * purgeable. Then trying to add one more object, to verify
+ * the purging logic.
+ * Again marking all objects WILLNEED and verifying the
+ * contents of the retained objects.
+ */
+ igt_subtest("stolen-fill-purge")
+ stolen_fill_purge_test(fd);
+
+ igt_info("Available Stolen Size %u bytes\n",
+ gem_available_stolen_size(fd));
+
+ igt_fixture {
+ intel_batchbuffer_free(batch);
+ drm_intel_bufmgr_destroy(bufmgr);
+ }
+}
diff --git a/tests/gem_pread.c b/tests/gem_pread.c
index cc83948..c795da1 100644
--- a/tests/gem_pread.c
+++ b/tests/gem_pread.c
@@ -76,6 +76,7 @@ static const char *bytes_per_sec(char *buf, double v)
uint32_t *src, dst;
+uint32_t *src_stolen, dst_stolen;
int fd, count;
int main(int argc, char **argv)
@@ -90,6 +91,9 @@ int main(int argc, char **argv)
{ 1, "snoop" },
{ 2, "display" },
{ -1 },
+ { -1, "stolen-uncached"},
+ { -1, "stolen-snoop"},
+ { -1, "stolen-display"},
}, *c;
igt_subtest_init(argc, argv);
@@ -106,6 +110,9 @@ int main(int argc, char **argv)
dst = gem_create(fd, object_size);
src = malloc(object_size);
+ dst_stolen = gem_create_stolen(fd, object_size,
+ I915_CREATE_PLACEMENT_STOLEN);
+ src_stolen = malloc(object_size);
}
igt_subtest("normal") {
@@ -142,9 +149,45 @@ int main(int argc, char **argv)
}
}
+ igt_subtest("stolen-normal") {
+ for (count = 1; count <= 1<<17; count <<= 1) {
+ struct timeval start, end;
+
+ gettimeofday(&start, NULL);
+ do_gem_read(fd, dst_stolen, src_stolen, object_size, count);
+ gettimeofday(&end, NULL);
+ igt_info("Time to pread %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);
+ }
+ }
+
+ for (c = cache; c->level != -1; c++) {
+ igt_subtest((c + 4)->name) {
+ gem_set_caching(fd, dst_stolen, c->level);
+
+ for (count = 1; count <= 1<<17; count <<= 1) {
+ struct timeval start, end;
+
+ gettimeofday(&start, NULL);
+ do_gem_read(fd, dst_stolen, src_stolen, object_size, count);
+ gettimeofday(&end, NULL);
+ igt_info("Time to %s pread %d bytes x %6d: %7.3fµs, %s\n",
+ (c + 4)->name, object_size, count,
+ elapsed(&start, &end, count),
+ bytes_per_sec((char *)buf, object_size/elapsed(&start, &end, count)*1e6));
+ fflush(stdout);
+ }
+ }
+ }
+
igt_fixture {
free(src);
gem_close(fd, dst);
+ free(src_stolen);
+ gem_close(fd, dst_stolen);
close(fd);
}
diff --git a/tests/gem_pwrite.c b/tests/gem_pwrite.c
index 6378b0a..24718ee 100644
--- a/tests/gem_pwrite.c
+++ b/tests/gem_pwrite.c
@@ -82,6 +82,7 @@ static const char *bytes_per_sec(char *buf, double v)
uint32_t *src, dst;
+uint32_t *src_stolen, dst_stolen;
int fd;
int main(int argc, char **argv)
@@ -97,6 +98,9 @@ int main(int argc, char **argv)
{ 1, "snoop" },
{ 2, "display" },
{ -1 },
+ { -1, "stolen-uncached"},
+ { -1, "stolen-snoop"},
+ { -1, "stolen-display"},
}, *c;
igt_skip_on_simulation();
@@ -114,6 +118,9 @@ int main(int argc, char **argv)
dst = gem_create(fd, object_size);
src = malloc(object_size);
+ dst_stolen = gem_create_stolen(fd, object_size,
+ I915_CREATE_PLACEMENT_STOLEN);
+ src_stolen = malloc(object_size);
}
igt_subtest("normal") {
@@ -150,9 +157,44 @@ int main(int argc, char **argv)
}
}
+ igt_subtest("stolen-normal") {
+ for (count = 1; count <= 1<<17; count <<= 1) {
+ struct timeval start, end;
+
+ gettimeofday(&start, NULL);
+ do_gem_write(fd, dst, src, object_size, count);
+ gettimeofday(&end, NULL);
+ igt_info("Time to pwrite %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);
+ }
+ }
+
+ for (c = cache; c->level != -1; c++) {
+ igt_subtest((c + 4)->name) {
+ gem_set_caching(fd, dst, c->level);
+ for (count = 1; count <= 1<<17; count <<= 1) {
+ struct timeval start, end;
+
+ gettimeofday(&start, NULL);
+ do_gem_write(fd, dst, src, object_size, count);
+ gettimeofday(&end, NULL);
+ igt_info("Time to %s pwrite %d bytes x %6d: %7.3fµs, %s\n",
+ (c + 4)->name, object_size, count,
+ elapsed(&start, &end, count),
+ bytes_per_sec((char *)buf, object_size/elapsed(&start, &end, count)*1e6));
+ fflush(stdout);
+ }
+ }
+ }
+
igt_fixture {
free(src);
gem_close(fd, dst);
+ free(src_stolen);
+ gem_close(fd, dst_stolen);
close(fd);
}
--
1.9.1
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