[igt-dev] [PATCH i-g-t 22/89] tests/i915/gem_exec_nop: Convert to intel_ctx_t
Zbigniew Kempczyński
zbigniew.kempczynski at intel.com
Wed Jun 2 10:45:33 UTC 2021
On Fri, Apr 23, 2021 at 04:47:46PM -0500, Jason Ekstrand wrote:
> Signed-off-by: Jason Ekstrand <jason at jlekstrand.net>
> ---
> tests/i915/gem_exec_nop.c | 156 ++++++++++++++++++++++----------------
> 1 file changed, 92 insertions(+), 64 deletions(-)
>
> diff --git a/tests/i915/gem_exec_nop.c b/tests/i915/gem_exec_nop.c
> index f24ff88f..98c308d7 100644
> --- a/tests/i915/gem_exec_nop.c
> +++ b/tests/i915/gem_exec_nop.c
> @@ -45,6 +45,7 @@
> #include "igt_device.h"
> #include "igt_rand.h"
> #include "igt_sysfs.h"
> +#include "intel_ctx.h"
>
>
> #define ENGINE_FLAGS (I915_EXEC_RING_MASK | I915_EXEC_BSD_MASK)
> @@ -62,7 +63,7 @@ static double elapsed(const struct timespec *start, const struct timespec *end)
> (end->tv_nsec - start->tv_nsec)*1e-9);
> }
>
> -static double nop_on_ring(int fd, uint32_t handle,
> +static double nop_on_ring(int fd, uint32_t handle, const intel_ctx_t *ctx,
> const struct intel_execution_engine2 *e,
> int timeout_ms,
> unsigned long *out)
When I started to looking at this test I realized we unnecessary have
to use newly created context instead using default one. This enforces
changes everywhere but we really don't need this imo.
Shouldn't we provide intel_ctx_0 filled with cfg/engines if query
engines exists instead of returning pointer to statically defined
zeroed structure? Destroy path can diverge the situation - if we
allocate intel_ctx_t structure instead of returning pointer to
predefined one pointer comparison get us know we should free it.
In both cases - engines queried or statically returned for_each_ctx_*()
should work.
--
Zbigniew
> @@ -81,6 +82,7 @@ static double nop_on_ring(int fd, uint32_t handle,
> execbuf.flags = e->flags;
> execbuf.flags |= I915_EXEC_HANDLE_LUT;
> execbuf.flags |= I915_EXEC_NO_RELOC;
> + execbuf.rsvd1 = ctx->id;
> if (__gem_execbuf(fd, &execbuf)) {
> execbuf.flags = e->flags;
> gem_execbuf(fd, &execbuf);
> @@ -101,7 +103,8 @@ static double nop_on_ring(int fd, uint32_t handle,
> return elapsed(&start, &now);
> }
>
> -static void poll_ring(int fd, const struct intel_execution_engine2 *e,
> +static void poll_ring(int fd, const intel_ctx_t *ctx,
> + const struct intel_execution_engine2 *e,
> int timeout)
> {
> const unsigned int gen = intel_gen(intel_get_drm_devid(fd));
> @@ -185,6 +188,7 @@ static void poll_ring(int fd, const struct intel_execution_engine2 *e,
> execbuf.buffers_ptr = to_user_pointer(&obj);
> execbuf.buffer_count = 1;
> execbuf.flags = e->flags | flags;
> + execbuf.rsvd1 = ctx->id;
>
> cycles = 0;
> do {
> @@ -212,7 +216,8 @@ static void poll_ring(int fd, const struct intel_execution_engine2 *e,
> gem_close(fd, obj.handle);
> }
>
> -static void poll_sequential(int fd, const char *name, int timeout)
> +static void poll_sequential(int fd, const intel_ctx_t *ctx,
> + const char *name, int timeout)
> {
> const unsigned int gen = intel_gen(intel_get_drm_devid(fd));
> const struct intel_execution_engine2 *e;
> @@ -232,7 +237,7 @@ static void poll_sequential(int fd, const char *name, int timeout)
> flags |= I915_EXEC_SECURE;
>
> nengine = 0;
> - __for_each_physical_engine(fd, e) {
> + for_each_ctx_engine(fd, ctx, e) {
> if (!gem_class_can_store_dword(fd, e->class) ||
> !gem_class_has_mutable_submission(fd, e->class))
> continue;
> @@ -312,6 +317,7 @@ static void poll_sequential(int fd, const char *name, int timeout)
> memset(&execbuf, 0, sizeof(execbuf));
> execbuf.buffers_ptr = to_user_pointer(obj);
> execbuf.buffer_count = ARRAY_SIZE(obj);
> + execbuf.rsvd1 = ctx->id;
>
> cycles = 0;
> do {
> @@ -342,19 +348,19 @@ static void poll_sequential(int fd, const char *name, int timeout)
> gem_close(fd, obj[0].handle);
> }
>
> -static void single(int fd, uint32_t handle,
> +static void single(int fd, uint32_t handle, const intel_ctx_t *ctx,
> const struct intel_execution_engine2 *e)
> {
> double time;
> unsigned long count;
>
> - time = nop_on_ring(fd, handle, e, 20000, &count);
> + time = nop_on_ring(fd, handle, ctx, e, 20000, &count);
> igt_info("%s: %'lu cycles: %.3fus\n",
> e->name, count, time*1e6 / count);
> }
>
> static double
> -stable_nop_on_ring(int fd, uint32_t handle,
> +stable_nop_on_ring(int fd, uint32_t handle, const intel_ctx_t *ctx,
> const struct intel_execution_engine2 *e,
> int timeout_ms,
> int reps)
> @@ -371,7 +377,7 @@ stable_nop_on_ring(int fd, uint32_t handle,
> unsigned long count;
> double time;
>
> - time = nop_on_ring(fd, handle, e, timeout_ms, &count);
> + time = nop_on_ring(fd, handle, ctx, e, timeout_ms, &count);
> igt_stats_push_float(&s, time / count);
> }
>
> @@ -387,7 +393,7 @@ stable_nop_on_ring(int fd, uint32_t handle,
> "'%s' != '%s' (%f not within %f%% tolerance of %f)\n",\
> #x, #ref, x, tolerance * 100.0, ref)
>
> -static void headless(int fd, uint32_t handle,
> +static void headless(int fd, uint32_t handle, const intel_ctx_t *ctx,
> const struct intel_execution_engine2 *e)
> {
> unsigned int nr_connected = 0;
> @@ -411,11 +417,11 @@ static void headless(int fd, uint32_t handle,
> /* set graphics mode to prevent blanking */
> kmstest_set_vt_graphics_mode();
>
> - nop_on_ring(fd, handle, e, 10, &count);
> + nop_on_ring(fd, handle, ctx, e, 10, &count);
> igt_require_f(count > 100, "submillisecond precision required\n");
>
> /* benchmark nops */
> - n_display = stable_nop_on_ring(fd, handle, e, 500, 5);
> + n_display = stable_nop_on_ring(fd, handle, ctx, e, 500, 5);
> igt_info("With one display connected: %.2fus\n",
> n_display * 1e6);
>
> @@ -423,7 +429,7 @@ static void headless(int fd, uint32_t handle,
> kmstest_unset_all_crtcs(fd, res);
>
> /* benchmark nops again */
> - n_headless = stable_nop_on_ring(fd, handle, e, 500, 5);
> + n_headless = stable_nop_on_ring(fd, handle, ctx, e, 500, 5);
> igt_info("Without a display connected (headless): %.2fus\n",
> n_headless * 1e6);
>
> @@ -431,7 +437,8 @@ static void headless(int fd, uint32_t handle,
> assert_within_epsilon(n_headless, n_display, 0.1f);
> }
>
> -static void parallel(int fd, uint32_t handle, int timeout)
> +static void parallel(int fd, uint32_t handle,
> + const intel_ctx_t *ctx, int timeout)
> {
> const struct intel_execution_engine2 *e;
> struct drm_i915_gem_execbuffer2 execbuf;
> @@ -445,11 +452,11 @@ static void parallel(int fd, uint32_t handle, int timeout)
> sum = 0;
> nengine = 0;
>
> - __for_each_physical_engine(fd, e) {
> + for_each_ctx_engine(fd, ctx, e) {
> engines[nengine] = e->flags;
> names[nengine++] = strdup(e->name);
>
> - time = nop_on_ring(fd, handle, e, 250, &count) / count;
> + time = nop_on_ring(fd, handle, ctx, e, 250, &count) / count;
> sum += time;
> igt_debug("%s: %.3fus\n", e->name, 1e6*time);
> }
> @@ -464,6 +471,7 @@ static void parallel(int fd, uint32_t handle, int timeout)
> execbuf.buffer_count = 1;
> execbuf.flags |= I915_EXEC_HANDLE_LUT;
> execbuf.flags |= I915_EXEC_NO_RELOC;
> + execbuf.rsvd1 = ctx->id;
> if (__gem_execbuf(fd, &execbuf)) {
> execbuf.flags = 0;
> gem_execbuf(fd, &execbuf);
> @@ -494,7 +502,8 @@ static void parallel(int fd, uint32_t handle, int timeout)
> igt_assert_eq(intel_detect_and_clear_missed_interrupts(fd), 0);
> }
>
> -static void independent(int fd, uint32_t handle, int timeout)
> +static void independent(int fd, uint32_t handle,
> + const intel_ctx_t *ctx, int timeout)
> {
> const struct intel_execution_engine2 *e;
> struct drm_i915_gem_execbuffer2 execbuf;
> @@ -507,11 +516,11 @@ static void independent(int fd, uint32_t handle, int timeout)
>
> sum = 0;
> nengine = 0;
> - __for_each_physical_engine(fd, e) {
> + for_each_ctx_engine(fd, ctx, e) {
> engines[nengine] = e->flags;
> names[nengine++] = strdup(e->name);
>
> - time = nop_on_ring(fd, handle, e, 250, &count) / count;
> + time = nop_on_ring(fd, handle, ctx, e, 250, &count) / count;
> sum += time;
> igt_debug("%s: %.3fus\n", e->name, 1e6*time);
> }
> @@ -526,6 +535,7 @@ static void independent(int fd, uint32_t handle, int timeout)
> execbuf.buffer_count = 1;
> execbuf.flags |= I915_EXEC_HANDLE_LUT;
> execbuf.flags |= I915_EXEC_NO_RELOC;
> + execbuf.rsvd1 = ctx->id;
> if (__gem_execbuf(fd, &execbuf)) {
> execbuf.flags = 0;
> gem_execbuf(fd, &execbuf);
> @@ -562,7 +572,7 @@ static void independent(int fd, uint32_t handle, int timeout)
> igt_assert_eq(intel_detect_and_clear_missed_interrupts(fd), 0);
> }
>
> -static void multiple(int fd,
> +static void multiple(int fd, const intel_ctx_t *ctx,
> const struct intel_execution_engine2 *e,
> int timeout)
> {
> @@ -581,6 +591,7 @@ static void multiple(int fd,
> execbuf.flags = e->flags;
> execbuf.flags |= I915_EXEC_HANDLE_LUT;
> execbuf.flags |= I915_EXEC_NO_RELOC;
> + execbuf.rsvd1 = ctx->id;
> if (__gem_execbuf(fd, &execbuf)) {
> execbuf.flags = e->flags;
> gem_execbuf(fd, &execbuf);
> @@ -592,9 +603,11 @@ static void multiple(int fd,
> unsigned long count;
> double time;
> int i915;
> + const intel_ctx_t *child_ctx;
>
> i915 = gem_reopen_driver(fd);
> - gem_context_copy_engines(fd, 0, i915, 0);
> + child_ctx = intel_ctx_create(i915, &ctx->cfg);
> + execbuf.rsvd1 = child_ctx->id;
>
> obj.handle = gem_create(i915, 4096);
> gem_write(i915, obj.handle, 0, &bbe, sizeof(bbe));
> @@ -609,6 +622,7 @@ static void multiple(int fd,
> } while (elapsed(&start, &now) < timeout);
> time = elapsed(&start, &now) / count;
> igt_info("%d: %ld cycles, %.3fus\n", child, count, 1e6*time);
> + intel_ctx_destroy(i915, child_ctx);
> }
>
> igt_waitchildren();
> @@ -617,7 +631,8 @@ static void multiple(int fd,
> gem_close(fd, obj.handle);
> }
>
> -static void series(int fd, uint32_t handle, int timeout)
> +static void series(int fd, uint32_t handle,
> + const intel_ctx_t *ctx, int timeout)
> {
> const struct intel_execution_engine2 *e;
> struct drm_i915_gem_execbuffer2 execbuf;
> @@ -630,8 +645,8 @@ static void series(int fd, uint32_t handle, int timeout)
> const char *name;
>
> nengine = 0;
> - __for_each_physical_engine(fd, e) {
> - time = nop_on_ring(fd, handle, e, 250, &count) / count;
> + for_each_ctx_engine(fd, ctx, e) {
> + time = nop_on_ring(fd, handle, ctx, e, 250, &count) / count;
> if (time > max) {
> name = e->name;
> max = time;
> @@ -653,6 +668,7 @@ static void series(int fd, uint32_t handle, int timeout)
> execbuf.buffer_count = 1;
> execbuf.flags |= I915_EXEC_HANDLE_LUT;
> execbuf.flags |= I915_EXEC_NO_RELOC;
> + execbuf.rsvd1 = ctx->id;
> if (__gem_execbuf(fd, &execbuf)) {
> execbuf.flags = 0;
> gem_execbuf(fd, &execbuf);
> @@ -688,9 +704,11 @@ static void xchg(void *array, unsigned i, unsigned j)
> u[j] = tmp;
> }
>
> -static void sequential(int fd, uint32_t handle, unsigned flags, int timeout)
> +static void sequential(int fd, uint32_t handle,
> + const intel_ctx_t *ctx, unsigned flags, int timeout)
> {
> const int ncpus = flags & FORKED ? sysconf(_SC_NPROCESSORS_ONLN) : 1;
> + const intel_ctx_t *tmp_ctx = NULL, *child_ctx = NULL;
> const struct intel_execution_engine2 *e;
> struct drm_i915_gem_execbuffer2 execbuf;
> struct drm_i915_gem_exec_object2 obj[2];
> @@ -707,10 +725,10 @@ static void sequential(int fd, uint32_t handle, unsigned flags, int timeout)
>
> nengine = 0;
> sum = 0;
> - __for_each_physical_engine(fd, e) {
> + for_each_ctx_engine(fd, ctx, e) {
> unsigned long count;
>
> - time = nop_on_ring(fd, handle, e, 250, &count) / count;
> + time = nop_on_ring(fd, handle, ctx, e, 250, &count) / count;
> sum += time;
> igt_debug("%s: %.3fus\n", e->name, 1e6*time);
>
> @@ -734,7 +752,8 @@ static void sequential(int fd, uint32_t handle, unsigned flags, int timeout)
>
> if (flags & CONTEXT) {
> gem_require_contexts(fd);
> - execbuf.rsvd1 = gem_context_clone_with_engines(fd, 0);
> + tmp_ctx = intel_ctx_create(fd, &ctx->cfg);
> + execbuf.rsvd1 = tmp_ctx->id;
> }
>
> for (n = 0; n < nengine; n++) {
> @@ -754,7 +773,8 @@ static void sequential(int fd, uint32_t handle, unsigned flags, int timeout)
>
> if (flags & CONTEXT) {
> gem_require_contexts(fd);
> - execbuf.rsvd1 = gem_context_clone_with_engines(fd, 0);
> + child_ctx = intel_ctx_create(fd, &ctx->cfg);
> + execbuf.rsvd1 = child_ctx->id;
> }
>
> hars_petruska_f54_1_random_perturb(child);
> @@ -777,7 +797,7 @@ static void sequential(int fd, uint32_t handle, unsigned flags, int timeout)
> results[child] = elapsed(&start, &now) / count;
>
> if (flags & CONTEXT)
> - gem_context_destroy(fd, execbuf.rsvd1);
> + intel_ctx_destroy(fd, child_ctx);
>
> gem_close(fd, obj[0].handle);
> }
> @@ -793,7 +813,7 @@ static void sequential(int fd, uint32_t handle, unsigned flags, int timeout)
> nengine, ncpus, 1e6*results[ncpus], 1e6*sum*ncpus);
>
> if (flags & CONTEXT)
> - gem_context_destroy(fd, execbuf.rsvd1);
> + intel_ctx_destroy(fd, tmp_ctx);
>
> gem_close(fd, obj[0].handle);
> munmap(results, 4096);
> @@ -810,6 +830,7 @@ static bool fence_wait(int fence)
> }
>
> static void fence_signal(int fd, uint32_t handle,
> + const intel_ctx_t *ctx,
> const struct intel_execution_engine2 *ring_id,
> const char *ring_name, int timeout)
> {
> @@ -827,7 +848,7 @@ static void fence_signal(int fd, uint32_t handle,
>
> nengine = 0;
> if (!ring_id) {
> - __for_each_physical_engine(fd, __e)
> + for_each_ctx_engine(fd, ctx, __e)
> engines[nengine++] = __e->flags;
> } else {
> engines[nengine++] = ring_id->flags;
> @@ -845,6 +866,7 @@ static void fence_signal(int fd, uint32_t handle,
> execbuf.buffers_ptr = to_user_pointer(&obj);
> execbuf.buffer_count = 1;
> execbuf.flags = I915_EXEC_FENCE_OUT;
> + execbuf.rsvd1 = ctx->id;
>
> n = 0;
> count = 0;
> @@ -885,20 +907,21 @@ static void fence_signal(int fd, uint32_t handle,
> }
>
> static void preempt(int fd, uint32_t handle,
> + const intel_ctx_t *ctx,
> const struct intel_execution_engine2 *e)
> {
> struct drm_i915_gem_execbuffer2 execbuf;
> struct drm_i915_gem_exec_object2 obj;
> struct timespec start, now;
> unsigned long count;
> - uint32_t ctx[2];
> + const intel_ctx_t *tmp_ctx[2];
> igt_spin_t *spin;
>
> - ctx[0] = gem_context_clone_with_engines(fd, 0);
> - gem_context_set_priority(fd, ctx[0], MIN_PRIO);
> + tmp_ctx[0] = intel_ctx_create(fd, &ctx->cfg);
> + gem_context_set_priority(fd, tmp_ctx[0]->id, MIN_PRIO);
>
> - ctx[1] = gem_context_clone_with_engines(fd, 0);
> - gem_context_set_priority(fd, ctx[1], MAX_PRIO);
> + tmp_ctx[1] = intel_ctx_create(fd, &ctx->cfg);
> + gem_context_set_priority(fd, tmp_ctx[1]->id, MAX_PRIO);
>
> memset(&obj, 0, sizeof(obj));
> obj.handle = handle;
> @@ -909,15 +932,16 @@ static void preempt(int fd, uint32_t handle,
> execbuf.flags = e->flags;
> execbuf.flags |= I915_EXEC_HANDLE_LUT;
> execbuf.flags |= I915_EXEC_NO_RELOC;
> + execbuf.rsvd1 = ctx->id;
> if (__gem_execbuf(fd, &execbuf)) {
> execbuf.flags = e->flags;
> gem_execbuf(fd, &execbuf);
> }
> - execbuf.rsvd1 = ctx[1];
> + execbuf.rsvd1 = tmp_ctx[1]->id;
> intel_detect_and_clear_missed_interrupts(fd);
>
> count = 0;
> - spin = __igt_spin_new(fd, .ctx_id = ctx[0], .engine = e->flags);
> + spin = __igt_spin_new(fd, .ctx = tmp_ctx[0], .engine = e->flags);
> clock_gettime(CLOCK_MONOTONIC, &start);
> do {
> gem_execbuf(fd, &execbuf);
> @@ -927,8 +951,8 @@ static void preempt(int fd, uint32_t handle,
> igt_spin_free(fd, spin);
> igt_assert_eq(intel_detect_and_clear_missed_interrupts(fd), 0);
>
> - gem_context_destroy(fd, ctx[1]);
> - gem_context_destroy(fd, ctx[0]);
> + intel_ctx_destroy(fd, tmp_ctx[1]);
> + intel_ctx_destroy(fd, tmp_ctx[0]);
>
> igt_info("%s: %'lu cycles: %.3fus\n",
> e->name, count, elapsed(&start, &now)*1e6 / count);
> @@ -937,6 +961,7 @@ static void preempt(int fd, uint32_t handle,
> igt_main
> {
> const struct intel_execution_engine2 *e;
> + const intel_ctx_t *ctx = NULL;
> uint32_t handle = 0;
> int device = -1;
>
> @@ -948,6 +973,8 @@ igt_main
> gem_submission_print_method(device);
> gem_scheduler_print_capability(device);
>
> + ctx = intel_ctx_create_all_physical(device);
> +
> handle = gem_create(device, 4096);
> gem_write(device, handle, 0, &bbe, sizeof(bbe));
>
> @@ -955,57 +982,57 @@ igt_main
> }
>
> igt_subtest("basic-series")
> - series(device, handle, 2);
> + series(device, handle, ctx, 2);
>
> igt_subtest("basic-parallel")
> - parallel(device, handle, 2);
> + parallel(device, handle, ctx, 2);
>
> igt_subtest("basic-sequential")
> - sequential(device, handle, 0, 2);
> + sequential(device, handle, ctx, 0, 2);
>
> igt_subtest_with_dynamic("single") {
> - __for_each_physical_engine(device, e) {
> + for_each_ctx_engine(device, ctx, e) {
> igt_dynamic_f("%s", e->name)
> - single(device, handle, e);
> + single(device, handle, ctx, e);
> }
> }
>
> igt_subtest_with_dynamic("signal") {
> - __for_each_physical_engine(device, e) {
> + for_each_ctx_engine(device, ctx, e) {
> igt_dynamic_f("%s", e->name)
> - fence_signal(device, handle, e,
> - e->name, 2);
> + fence_signal(device, handle, ctx,
> + e, e->name, 2);
> }
> }
>
> igt_subtest("signal-all")
> /* NULL value means all engines */
> - fence_signal(device, handle, NULL, "all", 20);
> + fence_signal(device, handle, ctx, NULL, "all", 20);
>
> igt_subtest("series")
> - series(device, handle, 20);
> + series(device, handle, ctx, 20);
>
> igt_subtest("parallel")
> - parallel(device, handle, 20);
> + parallel(device, handle, ctx, 20);
>
> igt_subtest("independent")
> - independent(device, handle, 20);
> + independent(device, handle, ctx, 20);
>
> igt_subtest_with_dynamic("multiple") {
> - __for_each_physical_engine(device, e) {
> + for_each_ctx_engine(device, ctx, e) {
> igt_dynamic_f("%s", e->name)
> - multiple(device, e, 20);
> + multiple(device, ctx, e, 20);
> }
> }
>
> igt_subtest("sequential")
> - sequential(device, handle, 0, 20);
> + sequential(device, handle, ctx, 0, 20);
>
> igt_subtest("forked-sequential")
> - sequential(device, handle, FORKED, 20);
> + sequential(device, handle, ctx, FORKED, 20);
>
> igt_subtest("context-sequential")
> - sequential(device, handle, FORKED | CONTEXT, 20);
> + sequential(device, handle, ctx, FORKED | CONTEXT, 20);
>
> igt_subtest_group {
> igt_fixture {
> @@ -1014,9 +1041,9 @@ igt_main
> igt_require(gem_scheduler_has_preemption(device));
> }
> igt_subtest_with_dynamic("preempt") {
> - __for_each_physical_engine(device, e) {
> + for_each_ctx_engine(device, ctx, e) {
> igt_dynamic_f("%s", e->name)
> - preempt(device, handle, e);
> + preempt(device, handle, ctx, e);
> }
> }
> }
> @@ -1027,29 +1054,30 @@ igt_main
> }
>
> igt_subtest_with_dynamic("poll") {
> - __for_each_physical_engine(device, e) {
> + for_each_ctx_engine(device, ctx, e) {
> /* Requires master for STORE_DWORD on gen4/5 */
> igt_dynamic_f("%s", e->name)
> - poll_ring(device, e, 20);
> + poll_ring(device, ctx, e, 20);
> }
> }
>
> igt_subtest_with_dynamic("headless") {
> - __for_each_physical_engine(device, e) {
> + for_each_ctx_engine(device, ctx, e) {
> igt_dynamic_f("%s", e->name)
> /* Requires master for changing display modes */
> - headless(device, handle, e);
> + headless(device, handle, ctx, e);
> }
> }
>
> igt_subtest("poll-sequential")
> - poll_sequential(device, "Sequential", 20);
> + poll_sequential(device, ctx, "Sequential", 20);
>
> }
>
> igt_fixture {
> igt_stop_hang_detector();
> gem_close(device, handle);
> + intel_ctx_destroy(device, ctx);
> close(device);
> }
> }
> --
> 2.31.1
>
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