diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 611115ed00db..f050759686ca 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -167,6 +167,7 @@ i915-$(CONFIG_DRM_I915_SELFTEST) += \ selftests/i915_random.o \ selftests/i915_selftest.o \ selftests/igt_flush_test.o \ + selftests/igt_live_test.o \ selftests/igt_reset.o \ selftests/igt_spinner.o diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/selftests/i915_gem_context.c index 4cba50679607..e2c1f0bc2abe 100644 --- a/drivers/gpu/drm/i915/selftests/i915_gem_context.c +++ b/drivers/gpu/drm/i915/selftests/i915_gem_context.c @@ -27,6 +27,7 @@ #include "../i915_selftest.h" #include "i915_random.h" #include "igt_flush_test.h" +#include "igt_live_test.h" #include "mock_drm.h" #include "mock_gem_device.h" @@ -34,84 +35,6 @@ #define DW_PER_PAGE (PAGE_SIZE / sizeof(u32)) -struct live_test { - struct drm_i915_private *i915; - const char *func; - const char *name; - - unsigned int reset_global; - unsigned int reset_engine[I915_NUM_ENGINES]; -}; - -static int begin_live_test(struct live_test *t, - struct drm_i915_private *i915, - const char *func, - const char *name) -{ - struct intel_engine_cs *engine; - enum intel_engine_id id; - int err; - - t->i915 = i915; - t->func = func; - t->name = name; - - err = i915_gem_wait_for_idle(i915, - I915_WAIT_LOCKED, - MAX_SCHEDULE_TIMEOUT); - if (err) { - pr_err("%s(%s): failed to idle before, with err=%d!", - func, name, err); - return err; - } - - i915->gpu_error.missed_irq_rings = 0; - t->reset_global = i915_reset_count(&i915->gpu_error); - - for_each_engine(engine, i915, id) - t->reset_engine[id] = - i915_reset_engine_count(&i915->gpu_error, engine); - - return 0; -} - -static int end_live_test(struct live_test *t) -{ - struct drm_i915_private *i915 = t->i915; - struct intel_engine_cs *engine; - enum intel_engine_id id; - - if (igt_flush_test(i915, I915_WAIT_LOCKED)) - return -EIO; - - if (t->reset_global != i915_reset_count(&i915->gpu_error)) { - pr_err("%s(%s): GPU was reset %d times!\n", - t->func, t->name, - i915_reset_count(&i915->gpu_error) - t->reset_global); - return -EIO; - } - - for_each_engine(engine, i915, id) { - if (t->reset_engine[id] == - i915_reset_engine_count(&i915->gpu_error, engine)) - continue; - - pr_err("%s(%s): engine '%s' was reset %d times!\n", - t->func, t->name, engine->name, - i915_reset_engine_count(&i915->gpu_error, engine) - - t->reset_engine[id]); - return -EIO; - } - - if (i915->gpu_error.missed_irq_rings) { - pr_err("%s(%s): Missed interrupts on engines %lx\n", - t->func, t->name, i915->gpu_error.missed_irq_rings); - return -EIO; - } - - return 0; -} - static int live_nop_switch(void *arg) { const unsigned int nctx = 1024; @@ -120,8 +43,8 @@ static int live_nop_switch(void *arg) struct i915_gem_context **ctx; enum intel_engine_id id; intel_wakeref_t wakeref; + struct igt_live_test t; struct drm_file *file; - struct live_test t; unsigned long n; int err = -ENODEV; @@ -185,7 +108,7 @@ static int live_nop_switch(void *arg) pr_info("Populated %d contexts on %s in %lluns\n", nctx, engine->name, ktime_to_ns(times[1] - times[0])); - err = begin_live_test(&t, i915, __func__, engine->name); + err = igt_live_test_begin(&t, i915, __func__, engine->name); if (err) goto out_unlock; @@ -233,7 +156,7 @@ static int live_nop_switch(void *arg) break; } - err = end_live_test(&t); + err = igt_live_test_end(&t); if (err) goto out_unlock; @@ -554,10 +477,10 @@ static int igt_ctx_exec(void *arg) struct drm_i915_private *i915 = arg; struct drm_i915_gem_object *obj = NULL; unsigned long ncontexts, ndwords, dw; + struct igt_live_test t; struct drm_file *file; IGT_TIMEOUT(end_time); LIST_HEAD(objects); - struct live_test t; int err = -ENODEV; /* @@ -575,7 +498,7 @@ static int igt_ctx_exec(void *arg) mutex_lock(&i915->drm.struct_mutex); - err = begin_live_test(&t, i915, __func__, ""); + err = igt_live_test_begin(&t, i915, __func__, ""); if (err) goto out_unlock; @@ -645,7 +568,7 @@ static int igt_ctx_exec(void *arg) } out_unlock: - if (end_live_test(&t)) + if (igt_live_test_end(&t)) err = -EIO; mutex_unlock(&i915->drm.struct_mutex); @@ -660,11 +583,11 @@ static int igt_ctx_readonly(void *arg) struct i915_gem_context *ctx; struct i915_hw_ppgtt *ppgtt; unsigned long ndwords, dw; + struct igt_live_test t; struct drm_file *file; I915_RND_STATE(prng); IGT_TIMEOUT(end_time); LIST_HEAD(objects); - struct live_test t; int err = -ENODEV; /* @@ -679,7 +602,7 @@ static int igt_ctx_readonly(void *arg) mutex_lock(&i915->drm.struct_mutex); - err = begin_live_test(&t, i915, __func__, ""); + err = igt_live_test_begin(&t, i915, __func__, ""); if (err) goto out_unlock; @@ -757,7 +680,7 @@ static int igt_ctx_readonly(void *arg) } out_unlock: - if (end_live_test(&t)) + if (igt_live_test_end(&t)) err = -EIO; mutex_unlock(&i915->drm.struct_mutex); @@ -982,10 +905,10 @@ static int igt_vm_isolation(void *arg) struct i915_gem_context *ctx_a, *ctx_b; struct intel_engine_cs *engine; intel_wakeref_t wakeref; + struct igt_live_test t; struct drm_file *file; I915_RND_STATE(prng); unsigned long count; - struct live_test t; unsigned int id; u64 vm_total; int err; @@ -1004,7 +927,7 @@ static int igt_vm_isolation(void *arg) mutex_lock(&i915->drm.struct_mutex); - err = begin_live_test(&t, i915, __func__, ""); + err = igt_live_test_begin(&t, i915, __func__, ""); if (err) goto out_unlock; @@ -1075,7 +998,7 @@ static int igt_vm_isolation(void *arg) out_rpm: intel_runtime_pm_put(i915, wakeref); out_unlock: - if (end_live_test(&t)) + if (igt_live_test_end(&t)) err = -EIO; mutex_unlock(&i915->drm.struct_mutex); diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c index 2e14d6d3bad7..4d4b86b5fa11 100644 --- a/drivers/gpu/drm/i915/selftests/i915_request.c +++ b/drivers/gpu/drm/i915/selftests/i915_request.c @@ -25,6 +25,7 @@ #include #include "../i915_selftest.h" +#include "igt_live_test.h" #include "mock_context.h" #include "mock_gem_device.h" @@ -270,73 +271,12 @@ int i915_request_mock_selftests(void) return err; } -struct live_test { - struct drm_i915_private *i915; - const char *func; - const char *name; - - unsigned int reset_count; -}; - -static int begin_live_test(struct live_test *t, - struct drm_i915_private *i915, - const char *func, - const char *name) -{ - int err; - - t->i915 = i915; - t->func = func; - t->name = name; - - err = i915_gem_wait_for_idle(i915, - I915_WAIT_LOCKED, - MAX_SCHEDULE_TIMEOUT); - if (err) { - pr_err("%s(%s): failed to idle before, with err=%d!", - func, name, err); - return err; - } - - i915->gpu_error.missed_irq_rings = 0; - t->reset_count = i915_reset_count(&i915->gpu_error); - - return 0; -} - -static int end_live_test(struct live_test *t) -{ - struct drm_i915_private *i915 = t->i915; - - i915_retire_requests(i915); - - if (wait_for(intel_engines_are_idle(i915), 10)) { - pr_err("%s(%s): GPU not idle\n", t->func, t->name); - return -EIO; - } - - if (t->reset_count != i915_reset_count(&i915->gpu_error)) { - pr_err("%s(%s): GPU was reset %d times!\n", - t->func, t->name, - i915_reset_count(&i915->gpu_error) - t->reset_count); - return -EIO; - } - - if (i915->gpu_error.missed_irq_rings) { - pr_err("%s(%s): Missed interrupts on engines %lx\n", - t->func, t->name, i915->gpu_error.missed_irq_rings); - return -EIO; - } - - return 0; -} - static int live_nop_request(void *arg) { struct drm_i915_private *i915 = arg; struct intel_engine_cs *engine; intel_wakeref_t wakeref; - struct live_test t; + struct igt_live_test t; unsigned int id; int err = -ENODEV; @@ -354,7 +294,7 @@ static int live_nop_request(void *arg) IGT_TIMEOUT(end_time); ktime_t times[2] = {}; - err = begin_live_test(&t, i915, __func__, engine->name); + err = igt_live_test_begin(&t, i915, __func__, engine->name); if (err) goto out_unlock; @@ -396,7 +336,7 @@ static int live_nop_request(void *arg) break; } - err = end_live_test(&t); + err = igt_live_test_end(&t); if (err) goto out_unlock; @@ -483,8 +423,8 @@ static int live_empty_request(void *arg) struct drm_i915_private *i915 = arg; struct intel_engine_cs *engine; intel_wakeref_t wakeref; + struct igt_live_test t; struct i915_vma *batch; - struct live_test t; unsigned int id; int err = 0; @@ -508,7 +448,7 @@ static int live_empty_request(void *arg) unsigned long n, prime; ktime_t times[2] = {}; - err = begin_live_test(&t, i915, __func__, engine->name); + err = igt_live_test_begin(&t, i915, __func__, engine->name); if (err) goto out_batch; @@ -544,7 +484,7 @@ static int live_empty_request(void *arg) break; } - err = end_live_test(&t); + err = igt_live_test_end(&t); if (err) goto out_batch; @@ -643,8 +583,8 @@ static int live_all_engines(void *arg) struct intel_engine_cs *engine; struct i915_request *request[I915_NUM_ENGINES]; intel_wakeref_t wakeref; + struct igt_live_test t; struct i915_vma *batch; - struct live_test t; unsigned int id; int err; @@ -656,7 +596,7 @@ static int live_all_engines(void *arg) mutex_lock(&i915->drm.struct_mutex); wakeref = intel_runtime_pm_get(i915); - err = begin_live_test(&t, i915, __func__, ""); + err = igt_live_test_begin(&t, i915, __func__, ""); if (err) goto out_unlock; @@ -728,7 +668,7 @@ static int live_all_engines(void *arg) request[id] = NULL; } - err = end_live_test(&t); + err = igt_live_test_end(&t); out_request: for_each_engine(engine, i915, id) @@ -749,7 +689,7 @@ static int live_sequential_engines(void *arg) struct i915_request *prev = NULL; struct intel_engine_cs *engine; intel_wakeref_t wakeref; - struct live_test t; + struct igt_live_test t; unsigned int id; int err; @@ -762,7 +702,7 @@ static int live_sequential_engines(void *arg) mutex_lock(&i915->drm.struct_mutex); wakeref = intel_runtime_pm_get(i915); - err = begin_live_test(&t, i915, __func__, ""); + err = igt_live_test_begin(&t, i915, __func__, ""); if (err) goto out_unlock; @@ -845,7 +785,7 @@ static int live_sequential_engines(void *arg) GEM_BUG_ON(!i915_request_completed(request[id])); } - err = end_live_test(&t); + err = igt_live_test_end(&t); out_request: for_each_engine(engine, i915, id) { diff --git a/drivers/gpu/drm/i915/selftests/igt_live_test.c b/drivers/gpu/drm/i915/selftests/igt_live_test.c new file mode 100644 index 000000000000..5deb485fb942 --- /dev/null +++ b/drivers/gpu/drm/i915/selftests/igt_live_test.c @@ -0,0 +1,85 @@ +/* + * SPDX-License-Identifier: MIT + * + * Copyright © 2018 Intel Corporation + */ + +#include "../i915_drv.h" + +#include "../i915_selftest.h" +#include "igt_flush_test.h" +#include "igt_live_test.h" + +int igt_live_test_begin(struct igt_live_test *t, + struct drm_i915_private *i915, + const char *func, + const char *name) +{ + struct intel_engine_cs *engine; + enum intel_engine_id id; + int err; + + lockdep_assert_held(&i915->drm.struct_mutex); + + t->i915 = i915; + t->func = func; + t->name = name; + + err = i915_gem_wait_for_idle(i915, + I915_WAIT_INTERRUPTIBLE | + I915_WAIT_LOCKED, + MAX_SCHEDULE_TIMEOUT); + if (err) { + pr_err("%s(%s): failed to idle before, with err=%d!", + func, name, err); + return err; + } + + i915->gpu_error.missed_irq_rings = 0; + t->reset_global = i915_reset_count(&i915->gpu_error); + + for_each_engine(engine, i915, id) + t->reset_engine[id] = + i915_reset_engine_count(&i915->gpu_error, engine); + + return 0; +} + +int igt_live_test_end(struct igt_live_test *t) +{ + struct drm_i915_private *i915 = t->i915; + struct intel_engine_cs *engine; + enum intel_engine_id id; + + lockdep_assert_held(&i915->drm.struct_mutex); + + if (igt_flush_test(i915, I915_WAIT_LOCKED)) + return -EIO; + + if (t->reset_global != i915_reset_count(&i915->gpu_error)) { + pr_err("%s(%s): GPU was reset %d times!\n", + t->func, t->name, + i915_reset_count(&i915->gpu_error) - t->reset_global); + return -EIO; + } + + for_each_engine(engine, i915, id) { + if (t->reset_engine[id] == + i915_reset_engine_count(&i915->gpu_error, engine)) + continue; + + pr_err("%s(%s): engine '%s' was reset %d times!\n", + t->func, t->name, engine->name, + i915_reset_engine_count(&i915->gpu_error, engine) - + t->reset_engine[id]); + return -EIO; + } + + if (i915->gpu_error.missed_irq_rings) { + pr_err("%s(%s): Missed interrupts on engines %lx\n", + t->func, t->name, i915->gpu_error.missed_irq_rings); + return -EIO; + } + + return 0; +} diff --git a/drivers/gpu/drm/i915/selftests/igt_live_test.h b/drivers/gpu/drm/i915/selftests/igt_live_test.h new file mode 100644 index 000000000000..c0e9f99d50de --- /dev/null +++ b/drivers/gpu/drm/i915/selftests/igt_live_test.h @@ -0,0 +1,35 @@ +/* + * SPDX-License-Identifier: MIT + * + * Copyright © 2019 Intel Corporation + */ + +#ifndef IGT_LIVE_TEST_H +#define IGT_LIVE_TEST_H + +#include "../i915_gem.h" + +struct drm_i915_private; + +struct igt_live_test { + struct drm_i915_private *i915; + const char *func; + const char *name; + + unsigned int reset_global; + unsigned int reset_engine[I915_NUM_ENGINES]; +}; + +/* + * Flush the GPU state before and after the test to ensure that no residual + * code is running on the GPU that may affect this test. Also compare the + * state before and after the test and alert if it unexpectedly changes, + * e.g. if the GPU was reset. + */ +int igt_live_test_begin(struct igt_live_test *t, + struct drm_i915_private *i915, + const char *func, + const char *name); +int igt_live_test_end(struct igt_live_test *t); + +#endif /* IGT_LIVE_TEST_H */