[PATCH i-g-t 05/16] i915/gem_ctx_create: Basic checks for constructor properties

Chris Wilson
2019-05-08T10:09:47Z

Check that the extended create interface accepts setparam.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
tests/i915/gem_ctx_create.c | 225 ++++++++++++++++++++++++++++++++++--
1 file changed, 213 insertions(+), 12 deletions(-)

diff --git a/tests/i915/gem_ctx_create.c b/tests/i915/gem_ctx_create.c
index a664070db..9b4fddbe7 100644
--- a/tests/i915/gem_ctx_create.c
+++ b/tests/i915/gem_ctx_create.c
@@ -33,6 +33,7 @@
#include <time.h>

#include "igt_rand.h"
+#include "sw_sync.h"

#define LOCAL_I915_EXEC_BSD_SHIFT (13)
#define LOCAL_I915_EXEC_BSD_MASK (3 << LOCAL_I915_EXEC_BSD_SHIFT)
@@ -45,12 +46,33 @@ static unsigned all_nengine;
static unsigned ppgtt_engines[16];
static unsigned ppgtt_nengine;

-static int __gem_context_create_local(int fd, struct drm_i915_gem_context_create *arg)
+static int create_ioctl(int fd, struct drm_i915_gem_context_create *arg)
{
- int ret = 0;
- if (drmIoctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_CREATE, arg))
- ret = -errno;
- return ret;
+ int err;
+
+ err = 0;
+ if (igt_ioctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_CREATE, arg)) {
+ err = -errno;
+ igt_assert(err);
+ }
+
+ errno = 0;
+ return err;
+}
+
+static int create_ext_ioctl(int i915,
+ struct drm_i915_gem_context_create_ext *arg)
+{
+ int err;
+
+ err = 0;
+ if (igt_ioctl(i915, DRM_IOCTL_I915_GEM_CONTEXT_CREATE_EXT, arg)) {
+ err = -errno;
+ igt_assume(err);
+ }
+
+ errno = 0;
+ return err;
}

static double elapsed(const struct timespec *start,
@@ -308,6 +330,187 @@ static void maximum(int fd, int ncpus, unsigned mode)
free(contexts);
}

+static void basic_ext_param(int i915)
+{
+ struct drm_i915_gem_context_create_ext_setparam ext = {
+ { .name = I915_CONTEXT_CREATE_EXT_SETPARAM },
+ };
+ struct drm_i915_gem_context_create_ext create = {
+ .flags = I915_CONTEXT_CREATE_FLAGS_USE_EXTENSIONS
+ };
+ struct drm_i915_gem_context_param get;
+
+ igt_require(create_ext_ioctl(i915, &create) == 0);
+ gem_context_destroy(i915, create.ctx_id);
+
+ create.extensions = -1ull;
+ igt_assert_eq(create_ext_ioctl(i915, &create), -EFAULT);
+
+ create.extensions = to_user_pointer(&ext);
+ igt_assert_eq(create_ext_ioctl(i915, &create), -EINVAL);
+
+ ext.param.param = I915_CONTEXT_PARAM_PRIORITY;
+ if (create_ext_ioctl(i915, &create) != -ENODEV) {
+ gem_context_destroy(i915, create.ctx_id);
+
+ ext.base.next_extension = -1ull;
+ igt_assert_eq(create_ext_ioctl(i915, &create), -EFAULT);
+ ext.base.next_extension = to_user_pointer(&ext);
+ igt_assert_eq(create_ext_ioctl(i915, &create), -E2BIG);
+ ext.base.next_extension = 0;
+
+ ext.param.value = 32;
+ igt_assert_eq(create_ext_ioctl(i915, &create), 0);
+
+ memset(&get, 0, sizeof(get));
+ get.ctx_id = create.ctx_id;
+ get.param = I915_CONTEXT_PARAM_PRIORITY;
+ gem_context_get_param(i915, &get);
+ igt_assert_eq(get.value, ext.param.value);
+
+ gem_context_destroy(i915, create.ctx_id);
+ }
+}
+
+static void check_single_timeline(int i915, uint32_t ctx, int num_engines)
+{
+#define RCS_TIMESTAMP (0x2000 + 0x358)
+ const int gen = intel_gen(intel_get_drm_devid(i915));
+ const int has_64bit_reloc = gen >= 8;
+ struct drm_i915_gem_exec_object2 results = { .handle = gem_create(i915, 4096) };
+ const uint32_t bbe = MI_BATCH_BUFFER_END;
+ int timeline = sw_sync_timeline_create();
+ uint32_t last, *map;
+
+ {
+ struct drm_i915_gem_execbuffer2 execbuf = {
+ .buffers_ptr = to_user_pointer(&results),
+ .buffer_count = 1,
+ .rsvd1 = ctx,
+ };
+ gem_write(i915, results.handle, 0, &bbe, sizeof(bbe));
+ gem_execbuf(i915, &execbuf);
+ results.flags = EXEC_OBJECT_PINNED;
+ }
+
+ for (int i = 0; i < num_engines; i++) {
+ struct drm_i915_gem_exec_object2 obj[2] = {
+ results, /* write hazard lies! */
+ { .handle = gem_create(i915, 4096) },
+ };
+ struct drm_i915_gem_execbuffer2 execbuf = {
+ .buffers_ptr = to_user_pointer(obj),
+ .buffer_count = 2,
+ .rsvd1 = ctx,
+ .rsvd2 = sw_sync_timeline_create_fence(timeline, num_engines - i),
+ .flags = i | I915_EXEC_FENCE_IN,
+ };
+ uint64_t offset = results.offset + 4 * i;
+ uint32_t *cs;
+ int j = 0;
+
+ cs = gem_mmap__cpu(i915, obj[1].handle, 0, 4096, PROT_WRITE);
+
+ cs[j] = 0x24 << 23 | 1; /* SRM */
+ if (has_64bit_reloc)
+ cs[j]++;
+ j++;
+ cs[j++] = RCS_TIMESTAMP;
+ cs[j++] = offset;
+ if (has_64bit_reloc)
+ cs[j++] = offset >> 32;
+ cs[j++] = MI_BATCH_BUFFER_END;
+
+ munmap(cs, 4096);
+
+ gem_execbuf(i915, &execbuf);
+ gem_close(i915, obj[1].handle);
+ close(execbuf.rsvd2);
+ }
+ close(timeline);
+ gem_sync(i915, results.handle);
+
+ map = gem_mmap__cpu(i915, results.handle, 0, 4096, PROT_READ);
+ gem_set_domain(i915, results.handle, I915_GEM_DOMAIN_CPU, 0);
+ gem_close(i915, results.handle);
+
+ last = map[0];
+ for (int i = 1; i < num_engines; i++) {
+ igt_assert_f((map[i] - last) > 0,
+ "Engine instance [%d] executed too early: this:%x, last:%x\n",
+ i, map[i], last);
+ last = map[i];
+ }
+ munmap(map, 4096);
+}
+
+static void iris_pipeline(int i915)
+{
+#ifdef I915_DEFINE_CONTEXT_PARAM_ENGINES
+#define RCS0 {0, 0}
+ I915_DEFINE_CONTEXT_PARAM_ENGINES(engines, 2) = {
+ .engines = { RCS0, RCS0 }
+ };
+ struct drm_i915_gem_context_create_ext_setparam p_engines = {
+ .base = {
+ .name = I915_CONTEXT_CREATE_EXT_SETPARAM,
+ .next_extension = 0, /* end of chain */
+ },
+ .param = {
+ .param = I915_CONTEXT_PARAM_ENGINES,
+ .value = to_user_pointer(&engines),
+ .size = sizeof(engines),
+ },
+ };
+ struct drm_i915_gem_context_create_ext_setparam p_recover = {
+ .base = {
+ .name =I915_CONTEXT_CREATE_EXT_SETPARAM,
+ .next_extension = to_user_pointer(&p_engines),
+ },
+ .param = {
+ .param = I915_CONTEXT_PARAM_RECOVERABLE,
+ .value = 0,
+ },
+ };
+ struct drm_i915_gem_context_create_ext_setparam p_prio = {
+ .base = {
+ .name =I915_CONTEXT_CREATE_EXT_SETPARAM,
+ .next_extension = to_user_pointer(&p_recover),
+ },
+ .param = {
+ .param = I915_CONTEXT_PARAM_PRIORITY,
+ .value = 768,
+ },
+ };
+ struct drm_i915_gem_context_create_ext create = {
+ .flags = (I915_CONTEXT_CREATE_FLAGS_SINGLE_TIMELINE |
+ I915_CONTEXT_CREATE_FLAGS_USE_EXTENSIONS),
+ };
+ struct drm_i915_gem_context_param get;
+
+ igt_require(create_ext_ioctl(i915, &create) == 0);
+
+ create.extensions = to_user_pointer(&p_prio);
+ igt_assert_eq(create_ext_ioctl(i915, &create), 0);
+
+ memset(&get, 0, sizeof(get));
+ get.ctx_id = create.ctx_id;
+ get.param = I915_CONTEXT_PARAM_PRIORITY;
+ gem_context_get_param(i915, &get);
+ igt_assert_eq(get.value, p_prio.param.value);
+
+ memset(&get, 0, sizeof(get));
+ get.ctx_id = create.ctx_id;
+ get.param = I915_CONTEXT_PARAM_RECOVERABLE;
+ gem_context_get_param(i915, &get);
+ igt_assert_eq(get.value, 0);
+
+ check_single_timeline(i915, create.ctx_id, 2);
+
+ gem_context_destroy(i915, create.ctx_id);
+#endif /* I915_DEFINE_CONTEXT_PARAM_ENGINES */
+}
+
igt_main
{
const int ncpus = sysconf(_SC_NPROCESSORS_ONLN);
@@ -340,17 +543,15 @@ igt_main
memset(&create, 0, sizeof(create));
create.ctx_id = rand();
create.pad = 0;
- igt_assert_eq(__gem_context_create_local(fd, &create), 0);
+ igt_assert_eq(create_ioctl(fd, &create), 0);
igt_assert(create.ctx_id != 0);
gem_context_destroy(fd, create.ctx_id);
}

- igt_subtest("invalid-pad") {
- memset(&create, 0, sizeof(create));
- create.ctx_id = rand();
- create.pad = 1;
- igt_assert_eq(__gem_context_create_local(fd, &create), -EINVAL);
- }
+ igt_subtest("ext-param")
+ basic_ext_param(fd);
+ igt_subtest("iris-pipeline")
+ iris_pipeline(fd);

igt_subtest("maximum-mem")
maximum(fd, ncpus, CHECK_RAM);
--
2.20.1