[Intel-gfx] [PATCH] igt: Add gem_ctx_thrash to fill the GGTT with contexts
Chris Wilson
chris at chris-wilson.co.uk
Tue Dec 16 04:21:53 PST 2014
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
tests/.gitignore | 1 +
tests/Makefile.am | 2 +
tests/Makefile.sources | 1 +
tests/gem_ctx_thrash.c | 152 +++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 156 insertions(+)
create mode 100644 tests/gem_ctx_thrash.c
diff --git a/tests/.gitignore b/tests/.gitignore
index 38f6f96..88a6405 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -29,6 +29,7 @@ gem_ctx_bad_exec
gem_ctx_basic
gem_ctx_create
gem_ctx_exec
+gem_ctx_thrash
gem_double_irq_loop
gem_dummy_reloc_loop
gem_evict_alignment
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 78cbe04..ec2bd30 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -50,6 +50,8 @@ gem_close_race_CFLAGS = $(AM_CFLAGS) $(THREAD_CFLAGS)
gem_close_race_LDADD = $(LDADD) -lpthread
gem_ctx_basic_CFLAGS = $(AM_CFLAGS) $(THREAD_CFLAGS)
gem_ctx_basic_LDADD = $(LDADD) -lpthread
+gem_ctx_thrash_CFLAGS = $(AM_CFLAGS) $(THREAD_CFLAGS)
+gem_ctx_thrash_LDADD = $(LDADD) -lpthread
gem_fence_thrash_CFLAGS = $(AM_CFLAGS) $(THREAD_CFLAGS)
gem_fence_thrash_LDADD = $(LDADD) -lpthread
gem_fence_upload_CFLAGS = $(AM_CFLAGS) $(THREAD_CFLAGS)
diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index da9e742..74deec3 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -101,6 +101,7 @@ TESTS_progs = \
gem_ctx_bad_destroy \
gem_ctx_basic \
gem_ctx_create \
+ gem_ctx_thrash \
gem_double_irq_loop \
gem_exec_big \
gem_exec_blt \
diff --git a/tests/gem_ctx_thrash.c b/tests/gem_ctx_thrash.c
new file mode 100644
index 0000000..8242f47
--- /dev/null
+++ b/tests/gem_ctx_thrash.c
@@ -0,0 +1,152 @@
+/*
+ * Copyright © 2014 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.
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <pthread.h>
+
+#include "ioctl_wrappers.h"
+#include "igt_aux.h"
+#include "intel_chipset.h"
+#include "drmtest.h"
+
+#define WIDTH 512
+#define HEIGHT 512
+#define STRIDE (4 * WIDTH)
+#define OBJECT_SIZE (STRIDE * HEIGHT)
+#define NUM_THREADS 8
+
+static int fd;
+static unsigned devid;
+static igt_render_copyfunc_t render_copy;
+
+static dri_bo **all_bo;
+static int num_bo;
+static int bo_per_ctx;
+
+static drm_intel_context **all_ctx;
+static int num_ctx;
+static int ctx_per_thread;
+
+static void xchg_ptr(void *array, unsigned i, unsigned j)
+{
+ void **A = array;
+ swap(A[i], A[j]);
+}
+
+static void *thread(void *bufmgr)
+{
+ struct intel_batchbuffer *batch;
+ dri_bo **bo;
+ drm_intel_context **ctx;
+ int c, b;
+
+ batch = intel_batchbuffer_alloc(bufmgr, devid);
+
+ bo = malloc(num_bo * sizeof(dri_bo *));
+ igt_assert(bo);
+ memcpy(bo, all_bo, num_bo * sizeof(dri_bo *));
+ igt_permute_array(bo, num_bo, xchg_ptr);
+
+ ctx = malloc(num_ctx * sizeof(drm_intel_context *));
+ igt_assert(ctx);
+ memcpy(ctx, all_ctx, num_ctx * sizeof(drm_intel_context *));
+ igt_permute_array(ctx, num_ctx, xchg_ptr);
+
+ for (c = 0; c < ctx_per_thread; c++) {
+ for (b = 0; b < bo_per_ctx; b++) {
+ struct igt_buf src, dst;
+
+ src.bo = bo[b % num_bo];
+ src.stride = STRIDE;
+ src.size = OBJECT_SIZE;
+ src.tiling = I915_TILING_X;
+
+ dst.bo = bo[(b+1) % num_bo];
+ dst.stride = STRIDE;
+ dst.size = OBJECT_SIZE;
+ dst.tiling = I915_TILING_X;
+
+ render_copy(batch, ctx[c],
+ &src, 0, 0, WIDTH, HEIGHT,
+ &dst, WIDTH / 2, HEIGHT / 2);
+ }
+ }
+
+ return NULL;
+}
+
+igt_simple_main
+{
+ pthread_t threads[NUM_THREADS];
+ drm_intel_bufmgr *bufmgr;
+ uint64_t aperture;
+ int ctx_size;
+ int n;
+
+ igt_skip_on_simulation();
+
+ fd = drm_open_any_render();
+ devid = intel_get_drm_devid(fd);
+ aperture = gem_aperture_size(fd);
+
+ render_copy = igt_get_render_copyfunc(devid);
+ igt_require_f(render_copy, "no render-copy function\n");
+
+ bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
+ igt_assert(bufmgr);
+
+ ctx_size = aperture >> 10;
+ num_ctx = 3 * (aperture / ctx_size) / 2;
+ igt_info("Creating %d contexts (assuming of size %d)\n",
+ num_ctx, ctx_size);
+ intel_require_memory(num_ctx, ctx_size, CHECK_RAM | CHECK_SWAP);
+ all_ctx = malloc(num_ctx * sizeof(drm_intel_context *));
+ igt_assert(all_ctx);
+ for (n = 0; n < num_ctx; n++) {
+ all_ctx[n] = drm_intel_gem_context_create(bufmgr);
+ igt_assert(all_ctx[n]);
+ }
+
+ num_bo = 3 * (aperture / OBJECT_SIZE) / 2;
+ igt_info("Creating %d surfaces (of size %d)\n", num_bo, OBJECT_SIZE);
+ intel_require_memory(num_bo, OBJECT_SIZE, CHECK_RAM);
+ all_bo = malloc(num_bo * sizeof(dri_bo *));
+ igt_assert(all_bo);
+
+ for (n = 0; n < num_bo; n++) {
+ all_bo[n] = drm_intel_bo_alloc(bufmgr, "", OBJECT_SIZE, 0);
+ igt_assert(all_bo[n]);
+ }
+
+ bo_per_ctx = aperture / OBJECT_SIZE / 2;
+ ctx_per_thread = 2 * num_ctx / NUM_THREADS;
+
+ for (n = 0; n < NUM_THREADS; n++)
+ pthread_create(&threads[n], NULL, thread, bufmgr);
+
+ for (n = 0; n < NUM_THREADS; n++)
+ pthread_join(threads[n], NULL);
+}
--
2.1.3
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