[igt-dev] [PATCH i-g-t] tests/i915/gem_ctx_switch: Update with engine discovery
Tvrtko Ursulin
tvrtko.ursulin at linux.intel.com
Thu Jun 27 10:20:19 UTC 2019
From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
I converted this one as an example, or at least to drive the discussion,
how more complex tests can be converted.
I have kept the legacy execbuf abi testing prefixed with "legacy-".
New tests were added to exercise physical engines via engine discovery and
also "all" tests have been updated in the same way.
To keep things simpler and avoid having to create separate contexts legacy
tests have to be first since the __for_each_physical_engine iterator would
otherwise configure the default context and confuse the test.
So legacy tests run on the unconfigured (with engine map) context and use
a new helper gem_eb_flags_to_engine to look up the engine from the
intel_execution_engines2 static list. This is only to enable the core test
code to be shared.
Places where new contexts are created had to be updated to either equally
configure the contexts or not. Another new helper,
gem_context_has_engine_map was added to enable this.
Also beware of drive-by formatting changes.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Ramalingam C <ramalingam.c at intel.com>
Cc: Andi Shyti <andi.shyti at intel.com>
---
lib/i915/gem_engine_topology.c | 27 +++++
lib/i915/gem_engine_topology.h | 5 +
tests/i915/gem_ctx_switch.c | 138 ++++++++++++++++++--------
tests/intel-ci/blacklist.txt | 2 +-
tests/intel-ci/fast-feedback.testlist | 3 +-
5 files changed, 132 insertions(+), 43 deletions(-)
diff --git a/lib/i915/gem_engine_topology.c b/lib/i915/gem_engine_topology.c
index fdd1b951672b..6cfe3468e3d8 100644
--- a/lib/i915/gem_engine_topology.c
+++ b/lib/i915/gem_engine_topology.c
@@ -289,3 +289,30 @@ bool gem_has_engine_topology(int fd)
return !__gem_context_get_param(fd, ¶m);
}
+
+const struct intel_execution_engine2 *
+gem_eb_flags_to_engine(unsigned int flags)
+{
+ const struct intel_execution_engine2 *e2;
+
+ __for_each_static_engine(e2) {
+ if (e2->flags == flags)
+ return e2;
+ }
+
+ return NULL;
+}
+
+bool gem_context_has_engine_map(int fd, uint32_t ctx)
+{
+ struct drm_i915_gem_context_param param = {
+ .param = I915_CONTEXT_PARAM_ENGINES,
+ .ctx_id = ctx
+ };
+ int ret;
+
+ ret = __gem_context_get_param(fd, ¶m);
+ igt_assert_eq(ret, 0);
+
+ return param.size;
+}
diff --git a/lib/i915/gem_engine_topology.h b/lib/i915/gem_engine_topology.h
index 2415fd1e379b..b175483fac1c 100644
--- a/lib/i915/gem_engine_topology.h
+++ b/lib/i915/gem_engine_topology.h
@@ -53,6 +53,11 @@ int gem_context_lookup_engine(int fd, uint64_t engine, uint32_t ctx_id,
void gem_context_set_all_engines(int fd, uint32_t ctx);
+bool gem_context_has_engine_map(int fd, uint32_t ctx);
+
+const struct intel_execution_engine2 *
+gem_eb_flags_to_engine(unsigned int flags);
+
#define __for_each_static_engine(e__) \
for ((e__) = intel_execution_engines2; (e__)->name; (e__)++)
diff --git a/tests/i915/gem_ctx_switch.c b/tests/i915/gem_ctx_switch.c
index 647911d4c42e..de39748344b8 100644
--- a/tests/i915/gem_ctx_switch.c
+++ b/tests/i915/gem_ctx_switch.c
@@ -55,7 +55,7 @@ static double elapsed(const struct timespec *start, const struct timespec *end)
static int measure_qlen(int fd,
struct drm_i915_gem_execbuffer2 *execbuf,
- unsigned int *engine, unsigned int nengine,
+ const struct intel_engine_data *engines,
int timeout)
{
const struct drm_i915_gem_exec_object2 * const obj =
@@ -63,15 +63,17 @@ static int measure_qlen(int fd,
uint32_t ctx[64];
int min = INT_MAX, max = 0;
- for (int i = 0; i < ARRAY_SIZE(ctx); i++)
+ for (int i = 0; i < ARRAY_SIZE(ctx); i++) {
ctx[i] = gem_context_create(fd);
+ gem_context_set_all_engines(fd, ctx[i]);
+ }
- for (unsigned int n = 0; n < nengine; n++) {
+ for (unsigned int n = 0; n < engines->nengines; n++) {
uint64_t saved = execbuf->flags;
struct timespec tv = {};
int q;
- execbuf->flags |= engine[n];
+ execbuf->flags |= engines->engines[n].flags;
for (int i = 0; i < ARRAY_SIZE(ctx); i++) {
execbuf->rsvd1 = ctx[i];
@@ -90,7 +92,8 @@ static int measure_qlen(int fd,
* Be conservative and aim not to overshoot timeout, so scale
* down by 8 for hopefully a max of 12.5% error.
*/
- q = ARRAY_SIZE(ctx) * timeout * 1e9 / igt_nsec_elapsed(&tv) / 8 + 1;
+ q = ARRAY_SIZE(ctx) * timeout * 1e9 / igt_nsec_elapsed(&tv) /
+ 8 + 1;
if (q < min)
min = q;
if (q > max)
@@ -107,7 +110,7 @@ static int measure_qlen(int fd,
}
static void single(int fd, uint32_t handle,
- const struct intel_execution_engine *e,
+ const struct intel_execution_engine2 *e2,
unsigned flags,
const int ncpus,
int timeout)
@@ -125,13 +128,14 @@ static void single(int fd, uint32_t handle,
shared = mmap(NULL, 4096, PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0);
igt_assert(shared != MAP_FAILED);
- gem_require_ring(fd, e->exec_id | e->flags);
-
for (n = 0; n < 64; n++) {
if (flags & QUEUE)
contexts[n] = gem_queue_create(fd);
else
contexts[n] = gem_context_create(fd);
+
+ if (gem_context_has_engine_map(fd, 0))
+ gem_context_set_all_engines(fd, contexts[n]);
}
memset(&obj, 0, sizeof(obj));
@@ -152,12 +156,12 @@ static void single(int fd, uint32_t handle,
execbuf.buffers_ptr = to_user_pointer(&obj);
execbuf.buffer_count = 1;
execbuf.rsvd1 = contexts[0];
- execbuf.flags = e->exec_id | e->flags;
+ execbuf.flags = e2->flags;
execbuf.flags |= LOCAL_I915_EXEC_HANDLE_LUT;
execbuf.flags |= LOCAL_I915_EXEC_NO_RELOC;
igt_require(__gem_execbuf(fd, &execbuf) == 0);
if (__gem_execbuf(fd, &execbuf)) {
- execbuf.flags = e->exec_id | e->flags;
+ execbuf.flags = e2->flags;
reloc.target_handle = obj.handle;
gem_execbuf(fd, &execbuf);
}
@@ -190,7 +194,8 @@ static void single(int fd, uint32_t handle,
clock_gettime(CLOCK_MONOTONIC, &now);
igt_info("[%d] %s: %'u cycles: %.3fus%s\n",
- child, e->name, count, elapsed(&start, &now)*1e6 / count,
+ child, e2->name, count,
+ elapsed(&start, &now) * 1e6 / count,
flags & INTERRUPTIBLE ? " (interruptible)" : "");
shared[child].elapsed = elapsed(&start, &now);
@@ -209,7 +214,7 @@ static void single(int fd, uint32_t handle,
}
igt_info("Total %s: %'lu cycles: %.3fus%s\n",
- e->name, total, max*1e6 / total,
+ e2->name, total, max*1e6 / total,
flags & INTERRUPTIBLE ? " (interruptible)" : "");
}
@@ -223,25 +228,20 @@ static void all(int fd, uint32_t handle, unsigned flags, int timeout)
{
struct drm_i915_gem_execbuffer2 execbuf;
struct drm_i915_gem_exec_object2 obj[2];
- unsigned int engine[16], e;
- const char *name[16];
+ struct intel_engine_data engines = { };
uint32_t contexts[65];
- unsigned int nengine;
int n, qlen;
- nengine = 0;
- for_each_physical_engine(fd, e) {
- engine[nengine] = e;
- name[nengine] = e__->name;
- nengine++;
- }
- igt_require(nengine);
+ engines = intel_init_engine_list(fd, 0);
+ igt_require(engines.nengines);
for (n = 0; n < ARRAY_SIZE(contexts); n++) {
if (flags & QUEUE)
contexts[n] = gem_queue_create(fd);
else
contexts[n] = gem_context_create(fd);
+
+ gem_context_set_all_engines(fd, contexts[n]);
}
memset(obj, 0, sizeof(obj));
@@ -256,7 +256,7 @@ static void all(int fd, uint32_t handle, unsigned flags, int timeout)
igt_require(__gem_execbuf(fd, &execbuf) == 0);
gem_sync(fd, handle);
- qlen = measure_qlen(fd, &execbuf, engine, nengine, timeout);
+ qlen = measure_qlen(fd, &execbuf, &engines, timeout);
igt_info("Using timing depth of %d batches\n", qlen);
execbuf.buffers_ptr = to_user_pointer(obj);
@@ -264,13 +264,15 @@ static void all(int fd, uint32_t handle, unsigned flags, int timeout)
for (int pot = 2; pot <= 64; pot *= 2) {
for (int nctx = pot - 1; nctx <= pot + 1; nctx++) {
- igt_fork(child, nengine) {
+ igt_fork(child, engines.nengines) {
struct timespec start, now;
unsigned int count = 0;
obj[0].handle = gem_create(fd, 4096);
- execbuf.flags |= engine[child];
- for (int loop = 0; loop < ARRAY_SIZE(contexts); loop++) {
+ execbuf.flags |= engines.engines[child].flags;
+ for (int loop = 0;
+ loop < ARRAY_SIZE(contexts);
+ loop++) {
execbuf.rsvd1 = contexts[loop];
gem_execbuf(fd, &execbuf);
}
@@ -279,7 +281,8 @@ static void all(int fd, uint32_t handle, unsigned flags, int timeout)
clock_gettime(CLOCK_MONOTONIC, &start);
do {
for (int loop = 0; loop < qlen; loop++) {
- execbuf.rsvd1 = contexts[loop % nctx];
+ execbuf.rsvd1 =
+ contexts[loop % nctx];
gem_execbuf(fd, &execbuf);
}
count += qlen;
@@ -291,8 +294,11 @@ static void all(int fd, uint32_t handle, unsigned flags, int timeout)
gem_close(fd, obj[0].handle);
igt_info("[%d:%d] %s: %'u cycles: %.3fus%s (elapsed: %.3fs)\n",
- nctx, child, name[child], count, elapsed(&start, &now)*1e6 / count,
- flags & INTERRUPTIBLE ? " (interruptible)" : "",
+ nctx, child,
+ engines.engines[child].name, count,
+ elapsed(&start, &now) * 1e6 / count,
+ flags & INTERRUPTIBLE ?
+ " (interruptible)" : "",
elapsed(&start, &now));
}
igt_waitchildren();
@@ -306,6 +312,7 @@ static void all(int fd, uint32_t handle, unsigned flags, int timeout)
igt_main
{
const int ncpus = sysconf(_SC_NPROCESSORS_ONLN);
+ const struct intel_execution_engine2 *e2;
const struct intel_execution_engine *e;
static const struct {
const char *name;
@@ -338,7 +345,49 @@ igt_main
igt_fork_hang_detector(fd);
}
+ /* Legacy testing must be first. */
for (e = intel_execution_engines; e->name; e++) {
+ e2 = gem_eb_flags_to_engine(e->exec_id | e->flags);
+ if (!e2)
+ continue; /* I915_EXEC_BSD with no ring selectors */
+
+ for (typeof(*phases) *p = phases; p->name; p++) {
+ igt_subtest_group {
+ igt_fixture {
+ gem_require_ring(fd, e2->flags);
+ if (p->require)
+ igt_require(p->require(fd));
+ }
+
+ igt_subtest_f("legacy-%s%s%s",
+ e->name,
+ *p->name ? "-" : "",
+ p->name)
+ single(fd, light, e2, p->flags, 1, 5);
+
+ igt_skip_on_simulation();
+
+ igt_subtest_f("legacy-%s%s-heavy%s",
+ e->exec_id == 0 ? "basic-" : "",
+ e->name,
+ p->name)
+ single(fd, heavy, e2, p->flags, 1, 5);
+ igt_subtest_f("legacy-forked-%s%s",
+ e->name,
+ p->name)
+ single(fd, light, e2, p->flags, ncpus,
+ 150);
+ igt_subtest_f("legacy-forked-%s-heavy%s",
+ e->name,
+ p->name)
+ single(fd, heavy, e2, p->flags, ncpus,
+ 150);
+ }
+ }
+ }
+
+ /* Must come after legacy subtests. */
+ __for_each_physical_engine(fd, e2) {
for (typeof(*phases) *p = phases; p->name; p++) {
igt_subtest_group {
igt_fixture {
@@ -346,33 +395,40 @@ igt_main
igt_require(p->require(fd));
}
- igt_subtest_f("%s%s%s", e->exec_id == 0 ? "basic-" : "", e->name, p->name)
- single(fd, light, e, p->flags, 1, 5);
+ igt_subtest_f("%s%s%s",
+ e2->name,
+ *p->name ? "-" : "",
+ p->name)
+ single(fd, light, e2, p->flags, 1, 5);
igt_skip_on_simulation();
- igt_subtest_f("%s%s-heavy%s", e->exec_id == 0 ? "basic-" : "", e->name, p->name)
- single(fd, heavy, e, p->flags, 1, 5);
- igt_subtest_f("forked-%s%s", e->name, p->name)
- single(fd, light, e, p->flags, ncpus, 150);
- igt_subtest_f("forked-%s-heavy%s", e->name, p->name)
- single(fd, heavy, e, p->flags, ncpus, 150);
+ igt_subtest_f("%s-heavy%s", e2->name, p->name)
+ single(fd, heavy, e2, p->flags, 1, 5);
+ igt_subtest_f("%s-forked%s", e2->name, p->name)
+ single(fd, light, e2, p->flags, ncpus,
+ 150);
+ igt_subtest_f("%s-forked-heavy%s",
+ e2->name,
+ p->name)
+ single(fd, heavy, e2, p->flags, ncpus,
+ 150);
}
}
}
- igt_subtest("basic-all-light")
+ igt_subtest("all-light")
all(fd, light, 0, 5);
- igt_subtest("basic-all-heavy")
+ igt_subtest("all-heavy")
all(fd, heavy, 0, 5);
igt_subtest_group {
igt_fixture {
igt_require(gem_has_queues(fd));
}
- igt_subtest("basic-queue-light")
+ igt_subtest("queue-light")
all(fd, light, QUEUE, 5);
- igt_subtest("basic-queue-heavy")
+ igt_subtest("queue-heavy")
all(fd, heavy, QUEUE, 5);
}
diff --git a/tests/intel-ci/blacklist.txt b/tests/intel-ci/blacklist.txt
index 2a5893ce1b37..8e3dafa9836b 100644
--- a/tests/intel-ci/blacklist.txt
+++ b/tests/intel-ci/blacklist.txt
@@ -25,7 +25,7 @@ igt at gem_cs_prefetch(@.*)?
igt at gem_ctx_create@(?!.*basic).*
igt at gem_ctx_exec@(?!.*basic).*
igt at gem_ctx_shared@*exhaust*
-igt at gem_ctx_switch@(?!.*basic).*
+igt at gem_ctx_switch@.*(forked|interruptible).*
igt at gem_ctx_thrash(@.*)?
igt at gem_evict_alignment(@.*)?
igt at gem_evict_everything(@.*)?
diff --git a/tests/intel-ci/fast-feedback.testlist b/tests/intel-ci/fast-feedback.testlist
index 58e6b5c5f882..cfe6102a39f7 100644
--- a/tests/intel-ci/fast-feedback.testlist
+++ b/tests/intel-ci/fast-feedback.testlist
@@ -14,7 +14,8 @@ igt at gem_ctx_create@basic-files
igt at gem_ctx_exec@basic
igt at gem_ctx_param@basic
igt at gem_ctx_param@basic-default
-igt at gem_ctx_switch@basic-default
+igt at gem_ctx_switch@legacy-render
+igt at gem_ctx_switch@rcs0
igt at gem_exec_basic@basic-all
igt at gem_exec_create@basic
igt at gem_exec_fence@basic-busy-default
--
2.20.1
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