To exercise the new I915_CONTEXT_PARAM_ENGINES and interactions with gem_execbuf().
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursu...@linux.intel.com> Cc: Andi Shyti <a...@etezian.org> Reviewed-by: Andi Shyti <a...@etezian.org> --- tests/Makefile.sources | 1 + tests/i915/gem_ctx_engines.c | 517 +++++++++++++++++++++++++++++++++++ tests/meson.build | 1 + 3 files changed, 519 insertions(+) create mode 100644 tests/i915/gem_ctx_engines.c diff --git a/tests/Makefile.sources b/tests/Makefile.sources index 3552e895b..e7ee27e81 100644 --- a/tests/Makefile.sources +++ b/tests/Makefile.sources @@ -22,6 +22,7 @@ TESTS_progs = \ drm_mm \ drm_read \ i915/gem_ctx_clone \ + i915/gem_ctx_engines \ i915/gem_ctx_shared \ i915/gem_vm_create \ kms_3d \ diff --git a/tests/i915/gem_ctx_engines.c b/tests/i915/gem_ctx_engines.c new file mode 100644 index 000000000..f83aa4772 --- /dev/null +++ b/tests/i915/gem_ctx_engines.c @@ -0,0 +1,517 @@ +/* + * Copyright © 2018 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 "igt.h" + +#include <unistd.h> +#include <stdlib.h> +#include <stdint.h> +#include <stdio.h> +#include <string.h> +#include <fcntl.h> +#include <inttypes.h> +#include <errno.h> +#include <sys/stat.h> +#include <sys/ioctl.h> +#include <sys/time.h> + +#include <drm.h> + +#include "i915/gem_context.h" +#include "sw_sync.h" + +#define engine_class(e, n) ((e)->engines[(n)].engine_class) +#define engine_instance(e, n) ((e)->engines[(n)].engine_instance) + +static bool has_context_engines(int i915) +{ + struct drm_i915_gem_context_param param = { + .ctx_id = 0, + .param = I915_CONTEXT_PARAM_ENGINES, + }; + return __gem_context_set_param(i915, ¶m) == 0; +} + +static void invalid_engines(int i915) +{ + struct i915_context_param_engines stack = {}, *engines; + struct drm_i915_gem_context_param param = { + .ctx_id = gem_context_create(i915), + .param = I915_CONTEXT_PARAM_ENGINES, + .value = to_user_pointer(&stack), + }; + uint32_t handle; + void *ptr; + + param.size = 0; + igt_assert_eq(__gem_context_set_param(i915, ¶m), 0); + + param.size = 1; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EINVAL); + + param.size = sizeof(stack) - 1; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EINVAL); + + param.size = sizeof(stack) + 1; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EINVAL); + + param.size = 0; + igt_assert_eq(__gem_context_set_param(i915, ¶m), 0); + + /* Create a single page surrounded by inaccessible nothingness */ + ptr = mmap(NULL, 3 * 4096, PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0); + igt_assert(ptr != MAP_FAILED); + + munmap(ptr, 4096); + engines = ptr + 4096; + munmap(ptr + 2 *4096, 4096); + + param.size = sizeof(*engines) + sizeof(*engines->engines); + param.value = to_user_pointer(engines); + + engines->engines[0].engine_class = -1; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -ENOENT); + + mprotect(engines, 4096, PROT_READ); + igt_assert_eq(__gem_context_set_param(i915, ¶m), -ENOENT); + + mprotect(engines, 4096, PROT_WRITE); + engines->engines[0].engine_class = 0; + if (__gem_context_set_param(i915, ¶m)) /* XXX needs RCS */ + goto out; + + engines->extensions = to_user_pointer(ptr); + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + engines->extensions = 0; + igt_assert_eq(__gem_context_set_param(i915, ¶m), 0); + + param.value = to_user_pointer(engines - 1); + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + param.value = to_user_pointer(engines) - 1; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + param.value = to_user_pointer(engines) - param.size + 1; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + param.value = to_user_pointer(engines) + 4096; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + param.value = to_user_pointer(engines) - param.size + 4096; + igt_assert_eq(__gem_context_set_param(i915, ¶m), 0); + + param.value = to_user_pointer(engines) - param.size + 4096 + 1; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + param.value = to_user_pointer(engines) + 4096; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + param.value = to_user_pointer(engines) + 4096 - 1; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + param.value = to_user_pointer(engines) - 1; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + param.value = to_user_pointer(engines - 1); + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + param.value = to_user_pointer(engines - 1) + 4096; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + param.value = to_user_pointer(engines - 1) + 4096 - sizeof(*engines->engines) / 2; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + handle = gem_create(i915, 4096 * 3); + ptr = gem_mmap__gtt(i915, handle, 4096 * 3, PROT_READ); + gem_close(i915, handle); + + munmap(ptr, 4096); + munmap(ptr + 8192, 4096); + + param.value = to_user_pointer(ptr + 4096); + igt_assert_eq(__gem_context_set_param(i915, ¶m), 0); + + param.value = to_user_pointer(ptr); + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + param.value = to_user_pointer(ptr) + 4095; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + param.value = to_user_pointer(ptr) + 8192; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + param.value = to_user_pointer(ptr) + 12287; + igt_assert_eq(__gem_context_set_param(i915, ¶m), -EFAULT); + + munmap(ptr + 4096, 4096); + +out: + munmap(engines, 4096); + gem_context_destroy(i915, param.ctx_id); +} + +static void idempotent(int i915) +{ + I915_DEFINE_CONTEXT_PARAM_ENGINES(engines , I915_EXEC_RING_MASK + 1); + I915_DEFINE_CONTEXT_PARAM_ENGINES(expected , I915_EXEC_RING_MASK + 1); + struct drm_i915_gem_context_param p = { + .ctx_id = gem_context_create(i915), + .param = I915_CONTEXT_PARAM_ENGINES, + .value = to_user_pointer(&engines), + .size = sizeof(engines), + }; + const size_t base = sizeof(struct i915_context_param_engines); + const struct intel_execution_engine2 *e; + int idx; + + /* What goes in, must come out. And what comes out, must go in */ + + gem_context_get_param(i915, &p); + igt_assert_eq(p.size, 0); /* atm default is to use legacy ring mask */ + + idx = 0; + memset(&engines, 0, sizeof(engines)); + for_each_engine_class_instance(i915, e) { + engines.engines[idx].engine_class = e->class; + engines.engines[idx].engine_instance = e->instance; + idx++; + } + idx *= sizeof(*engines.engines); + p.size = base + idx; + gem_context_set_param(i915, &p); + + memcpy(&expected, &engines, sizeof(expected)); + + gem_context_get_param(i915, &p); + igt_assert_eq(p.size, base + idx); + igt_assert(!memcmp(&expected, &engines, idx)); + + p.size = base; + gem_context_set_param(i915, &p); + gem_context_get_param(i915, &p); + igt_assert_eq(p.size, base); + + /* and it should not have overwritten the previous contents */ + igt_assert(!memcmp(&expected, &engines, idx)); + + memset(&engines, 0, sizeof(engines)); + engines.engines[0].engine_class = I915_ENGINE_CLASS_INVALID; + engines.engines[0].engine_instance = I915_ENGINE_CLASS_INVALID_NONE; + idx = sizeof(*engines.engines); + p.size = base + idx; + gem_context_set_param(i915, &p); + + memcpy(&expected, &engines, sizeof(expected)); + + gem_context_get_param(i915, &p); + igt_assert_eq(p.size, base + idx); + igt_assert(!memcmp(&expected, &engines, idx)); + + memset(&engines, 0, sizeof(engines)); + p.size = sizeof(engines); + gem_context_set_param(i915, &p); + + memcpy(&expected, &engines, sizeof(expected)); + + gem_context_get_param(i915, &p); + igt_assert_eq(p.size, sizeof(engines)); + igt_assert(!memcmp(&expected, &engines, idx)); + + gem_context_destroy(i915, p.ctx_id); +} + +static void execute_one(int i915) +{ + I915_DEFINE_CONTEXT_PARAM_ENGINES(engines , I915_EXEC_RING_MASK + 1); + struct drm_i915_gem_context_param param = { + .ctx_id = gem_context_create(i915), + .param = I915_CONTEXT_PARAM_ENGINES, + .value = to_user_pointer(&engines), + /* .size to be filled in later */ + }; + struct drm_i915_gem_exec_object2 obj = { + .handle = gem_create(i915, 4096), + }; + struct drm_i915_gem_execbuffer2 execbuf = { + .buffers_ptr = to_user_pointer(&obj), + .buffer_count = 1, + .rsvd1 = param.ctx_id, + }; + const uint32_t bbe = MI_BATCH_BUFFER_END; + const struct intel_execution_engine2 *e; + + gem_write(i915, obj.handle, 0, &bbe, sizeof(bbe)); + + /* Unadulterated I915_EXEC_DEFAULT should work */ + execbuf.flags = 0; + gem_execbuf(i915, &execbuf); + gem_sync(i915, obj.handle); + + for_each_engine_class_instance(i915, e) { + struct drm_i915_gem_busy busy = { .handle = obj.handle }; + + for (int i = -1; i <= I915_EXEC_RING_MASK; i++) { + igt_spin_t *spin; + + memset(&engines, 0, sizeof(engines)); + engine_class(&engines, 0) = e->class; + engine_instance(&engines, 0) = e->instance; + param.size = offsetof(typeof(engines), engines[1]); + gem_context_set_param(i915, ¶m); + + spin = igt_spin_new(i915, + .ctx = param.ctx_id, + .engine = 0); + + igt_debug("Testing with map of %d engines\n", i + 1); + memset(&engines.engines, -1, sizeof(engines.engines)); + if (i != -1) { + engine_class(&engines, i) = e->class; + engine_instance(&engines, i) = e->instance; + } + param.size = sizeof(uint64_t) + (i + 1) * sizeof(uint32_t); + gem_context_set_param(i915, ¶m); + + for (int j = 0; j <= I915_EXEC_RING_MASK; j++) { + int expected = j == i ? 0 : -EINVAL; + + execbuf.flags = j; + igt_assert_f(__gem_execbuf(i915, &execbuf) == expected, + "Failed to report the %s engine for slot %d (valid at %d)\n", + j == i ? "valid" : "invalid", j, i); + } + + do_ioctl(i915, DRM_IOCTL_I915_GEM_BUSY, &busy); + igt_assert_eq(busy.busy, i != -1 ? 1 << (e->class + 16) : 0); + + igt_spin_free(i915, spin); + + gem_sync(i915, obj.handle); + do_ioctl(i915, DRM_IOCTL_I915_GEM_BUSY, &busy); + igt_assert_eq(busy.busy, 0); + } + } + + /* Restore the defaults and check I915_EXEC_DEFAULT works again. */ + param.size = 0; + gem_context_set_param(i915, ¶m); + execbuf.flags = 0; + gem_execbuf(i915, &execbuf); + + gem_close(i915, obj.handle); + gem_context_destroy(i915, param.ctx_id); +} + +static void execute_oneforall(int i915) +{ + I915_DEFINE_CONTEXT_PARAM_ENGINES(engines , I915_EXEC_RING_MASK + 1); + struct drm_i915_gem_context_param param = { + .ctx_id = gem_context_create(i915), + .param = I915_CONTEXT_PARAM_ENGINES, + .value = to_user_pointer(&engines), + .size = sizeof(engines), + }; + const struct intel_execution_engine2 *e; + + for_each_engine_class_instance(i915, e) { + memset(&engines, 0, sizeof(engines)); + for (int i = 0; i <= I915_EXEC_RING_MASK; i++) { + engine_class(&engines, i) = e->class; + engine_instance(&engines, i) = e->instance; + } + gem_context_set_param(i915, ¶m); + + for (int i = 0; i <= I915_EXEC_RING_MASK; i++) { + struct drm_i915_gem_busy busy = {}; + igt_spin_t *spin; + + spin = __igt_spin_new(i915, + .ctx = param.ctx_id, + .engine = i); + + busy.handle = spin->handle; + do_ioctl(i915, DRM_IOCTL_I915_GEM_BUSY, &busy); + igt_assert_eq(busy.busy, 1 << (e->class + 16)); + + igt_spin_free(i915, spin); + } + } + + gem_context_destroy(i915, param.ctx_id); +} + +static void execute_allforone(int i915) +{ + I915_DEFINE_CONTEXT_PARAM_ENGINES(engines , I915_EXEC_RING_MASK + 1); + struct drm_i915_gem_context_param param = { + .ctx_id = gem_context_create(i915), + .param = I915_CONTEXT_PARAM_ENGINES, + .value = to_user_pointer(&engines), + }; + const struct intel_execution_engine2 *e; + int i; + + i = 0; + memset(&engines, 0, sizeof(engines)); + for_each_engine_class_instance(i915, e) { + engine_class(&engines, i) = e->class; + engine_instance(&engines, i) = e->instance; + i++; + } + param.size = sizeof(uint64_t) + i * sizeof(uint32_t); + gem_context_set_param(i915, ¶m); + + i = 0; + for_each_engine_class_instance(i915, e) { + struct drm_i915_gem_busy busy = {}; + igt_spin_t *spin; + + spin = __igt_spin_new(i915, + .ctx = param.ctx_id, + .engine = i++); + + busy.handle = spin->handle; + do_ioctl(i915, DRM_IOCTL_I915_GEM_BUSY, &busy); + igt_assert_eq(busy.busy, 1 << (e->class + 16)); + + igt_spin_free(i915, spin); + } + + gem_context_destroy(i915, param.ctx_id); +} + +static void independent(int i915) +{ +#define RCS_TIMESTAMP (0x2000 + 0x358) + const int gen = intel_gen(intel_get_drm_devid(i915)); + const int has_64bit_reloc = gen >= 8; + I915_DEFINE_CONTEXT_PARAM_ENGINES(engines , I915_EXEC_RING_MASK + 1); + struct drm_i915_gem_context_param param = { + .ctx_id = gem_context_create(i915), + .param = I915_CONTEXT_PARAM_ENGINES, + .value = to_user_pointer(&engines), + .size = sizeof(engines), + }; + 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 = param.ctx_id, + }; + gem_write(i915, results.handle, 0, &bbe, sizeof(bbe)); + gem_execbuf(i915, &execbuf); + results.flags = EXEC_OBJECT_PINNED; + } + + memset(&engines, 0, sizeof(engines)); /* All rcs0 */ + gem_context_set_param(i915, ¶m); + + for (int i = 0; i < I915_EXEC_RING_MASK + 1; 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 = param.ctx_id, + .rsvd2 = sw_sync_timeline_create_fence(timeline, i + 1), + .flags = (I915_EXEC_RING_MASK - 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 < I915_EXEC_RING_MASK + 1; i++) { + igt_assert_f((map[i] - last) > 0, + "Engine instance [%d] executed too late\n", i); + last = map[i]; + } + munmap(map, 4096); + + gem_context_destroy(i915, param.ctx_id); +} + +igt_main +{ + int i915 = -1; + + igt_fixture { + i915 = drm_open_driver_render(DRIVER_INTEL); + igt_require_gem(i915); + + gem_require_contexts(i915); + igt_require(has_context_engines(i915)); + } + + igt_subtest("invalid-engines") + invalid_engines(i915); + + igt_subtest("idempotent") + idempotent(i915); + + igt_subtest("execute-one") + execute_one(i915); + + igt_subtest("execute-oneforall") + execute_oneforall(i915); + + igt_subtest("execute-allforone") + execute_allforone(i915); + + igt_subtest("independent") + independent(i915); +} diff --git a/tests/meson.build b/tests/meson.build index 3883ae127..7e0089e74 100644 --- a/tests/meson.build +++ b/tests/meson.build @@ -111,6 +111,7 @@ i915_progs = [ 'gem_ctx_bad_destroy', 'gem_ctx_clone', 'gem_ctx_create', + 'gem_ctx_engines', 'gem_ctx_exec', 'gem_ctx_isolation', 'gem_ctx_param', -- 2.20.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx