From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Contexts executing when reset triggers are potentialy corrupt so trying to
use them from a subsequent test (like the default context) can hang the
GPU or even the driver.
Workaround that by always creating a dedicated context which will be
running when GPU reset happens.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
---
tests/gem_eio.c | 96 +++++++++++++++++++++++++++++++++++----------------------
1 file changed, 60 insertions(+), 36 deletions(-)
diff --git a/tests/gem_eio.c b/tests/gem_eio.c
index b824d9d4c9c0..cefe26adf893 100644
--- a/tests/gem_eio.c
+++ b/tests/gem_eio.c
@@ -249,14 +249,34 @@ static int __check_wait(int fd, uint32_t bo, unsigned int wait)
return ret;
}
+static uint32_t context_create_safe(int i915)
+{
+ struct drm_i915_gem_context_param param;
+
+ memset(¶m, 0, sizeof(param));
+
+ param.ctx_id = gem_context_create(i915);
+ param.param = I915_CONTEXT_PARAM_BANNABLE;
+ gem_context_set_param(i915, ¶m);
+
+ param.param = I915_CONTEXT_PARAM_NO_ERROR_CAPTURE;
+ param.value = 1;
+ gem_context_set_param(i915, ¶m);
+
+ return param.ctx_id;
+}
+
#define TEST_WEDGE (1)
static void test_wait(int fd, unsigned int flags, unsigned int wait)
{
igt_spin_t *hang;
+ uint32_t ctx;
igt_require_gem(fd);
+ ctx = context_create_safe(fd);
+
/*
* If the request we wait on completes due to a hang (even for
* that request), the user expects the return value to 0 (success).
@@ -267,7 +287,7 @@ static void test_wait(int fd, unsigned int flags, unsigned int wait)
else
igt_require(i915_reset_control(true));
- hang = spin_sync(fd, 0, I915_EXEC_DEFAULT);
+ hang = spin_sync(fd, ctx, I915_EXEC_DEFAULT);
igt_assert_eq(__check_wait(fd, hang->handle, wait), 0);
@@ -276,6 +296,8 @@ static void test_wait(int fd, unsigned int flags, unsigned int wait)
igt_require(i915_reset_control(true));
trigger_reset(fd);
+
+ gem_context_destroy(fd, ctx);
}
static void test_suspend(int fd, int state)
@@ -309,6 +331,7 @@ static void test_inflight(int fd, unsigned int wait)
for_each_engine(fd, engine) {
struct drm_i915_gem_execbuffer2 execbuf;
+ uint32_t ctx = context_create_safe(fd);
igt_spin_t *hang;
int fence[64]; /* conservative estimate of ring size */
@@ -316,7 +339,7 @@ static void test_inflight(int fd, unsigned int wait)
igt_debug("Starting %s on engine '%s'\n", __func__, e__->name);
igt_require(i915_reset_control(false));
- hang = spin_sync(fd, 0, engine);
+ hang = spin_sync(fd, ctx, engine);
obj[0].handle = hang->handle;
memset(&execbuf, 0, sizeof(execbuf));
@@ -340,6 +363,8 @@ static void test_inflight(int fd, unsigned int wait)
igt_spin_batch_free(fd, hang);
igt_assert(i915_reset_control(true));
trigger_reset(fd);
+
+ gem_context_destroy(fd, ctx);
}
}
@@ -350,17 +375,20 @@ static void test_inflight_suspend(int fd)
uint32_t bbe = MI_BATCH_BUFFER_END;
int fence[64]; /* conservative estimate of ring size */
igt_spin_t *hang;
+ uint32_t ctx;
igt_require_gem(fd);
igt_require(gem_has_exec_fence(fd));
igt_require(i915_reset_control(false));
+ ctx = context_create_safe(fd);
+
memset(obj, 0, sizeof(obj));
obj[0].flags = EXEC_OBJECT_WRITE;
obj[1].handle = gem_create(fd, 4096);
gem_write(fd, obj[1].handle, 0, &bbe, sizeof(bbe));
- hang = spin_sync(fd, 0, 0);
+ hang = spin_sync(fd, ctx, 0);
obj[0].handle = hang->handle;
memset(&execbuf, 0, sizeof(execbuf));
@@ -387,23 +415,8 @@ static void test_inflight_suspend(int fd)
igt_spin_batch_free(fd, hang);
igt_assert(i915_reset_control(true));
trigger_reset(fd);
-}
-
-static uint32_t context_create_safe(int i915)
-{
- struct drm_i915_gem_context_param param;
-
- memset(¶m, 0, sizeof(param));
- param.ctx_id = gem_context_create(i915);
- param.param = I915_CONTEXT_PARAM_BANNABLE;
- gem_context_set_param(i915, ¶m);
-
- param.param = I915_CONTEXT_PARAM_NO_ERROR_CAPTURE;
- param.value = 1;
- gem_context_set_param(i915, ¶m);
-
- return param.ctx_id;
+ gem_context_destroy(fd, ctx);
}
static void test_inflight_contexts(int fd, unsigned int wait)
@@ -411,40 +424,40 @@ static void test_inflight_contexts(int fd, unsigned int wait)
struct drm_i915_gem_exec_object2 obj[2];
const uint32_t bbe = MI_BATCH_BUFFER_END;
unsigned int engine;
- uint32_t ctx[64];
+ uint32_t ctx[65];
igt_require_gem(fd);
igt_require(gem_has_exec_fence(fd));
gem_require_contexts(fd);
- for (unsigned int n = 0; n < ARRAY_SIZE(ctx); n++)
- ctx[n] = context_create_safe(fd);
-
memset(obj, 0, sizeof(obj));
obj[0].flags = EXEC_OBJECT_WRITE;
obj[1].handle = gem_create(fd, 4096);
gem_write(fd, obj[1].handle, 0, &bbe, sizeof(bbe));
for_each_engine(fd, engine) {
- struct drm_i915_gem_execbuffer2 execbuf;
+ struct drm_i915_gem_execbuffer2 execbuf = { };
igt_spin_t *hang;
int fence[64];
- gem_quiescent_gpu(fd);
-
igt_debug("Starting %s on engine '%s'\n", __func__, e__->name);
+
igt_require(i915_reset_control(false));
- hang = spin_sync(fd, 0, engine);
+ for (unsigned int n = 0; n < ARRAY_SIZE(ctx); n++)
+ ctx[n] = context_create_safe(fd);
+
+ gem_quiescent_gpu(fd);
+
+ hang = spin_sync(fd, ctx[0], engine);
obj[0].handle = hang->handle;
- memset(&execbuf, 0, sizeof(execbuf));
execbuf.buffers_ptr = to_user_pointer(obj);
execbuf.buffer_count = 2;
execbuf.flags = engine | I915_EXEC_FENCE_OUT;
- for (unsigned int n = 0; n < ARRAY_SIZE(fence); n++) {
- execbuf.rsvd1 = ctx[n];
+ for (unsigned int n = 0; n < (ARRAY_SIZE(fence) - 1); n++) {
+ execbuf.rsvd1 = ctx[n + 1];
gem_execbuf_wr(fd, &execbuf);
fence[n] = execbuf.rsvd2 >> 32;
igt_assert(fence[n] != -1);
@@ -452,18 +465,19 @@ static void test_inflight_contexts(int fd, unsigned int wait)
igt_assert_eq(__check_wait(fd, obj[1].handle, wait), 0);
- for (unsigned int n = 0; n < ARRAY_SIZE(fence); n++) {
+ for (unsigned int n = 0; n < (ARRAY_SIZE(fence) - 1); n++) {
igt_assert_eq(sync_fence_status(fence[n]), -EIO);
close(fence[n]);
}
igt_spin_batch_free(fd, hang);
+
+ for (unsigned int n = 0; n < ARRAY_SIZE(ctx); n++)
+ gem_context_destroy(fd, ctx[n]);
+
igt_assert(i915_reset_control(true));
trigger_reset(fd);
}
-
- for (unsigned int n = 0; n < ARRAY_SIZE(ctx); n++)
- gem_context_destroy(fd, ctx[n]);
}
static void test_inflight_external(int fd)
@@ -473,15 +487,18 @@ static void test_inflight_external(int fd)
struct drm_i915_gem_exec_object2 obj;
igt_spin_t *hang;
uint32_t fence;
+ uint32_t ctx;
IGT_CORK_FENCE(cork);
igt_require_sw_sync();
igt_require(gem_has_exec_fence(fd));
+ ctx = context_create_safe(fd);
+
fence = igt_cork_plug(&cork, fd);
igt_require(i915_reset_control(false));
- hang = __spin_poll(fd, 0, 0);
+ hang = __spin_poll(fd, ctx, 0);
memset(&obj, 0, sizeof(obj));
obj.handle = gem_create(fd, 4096);
@@ -514,6 +531,8 @@ static void test_inflight_external(int fd)
igt_spin_batch_free(fd, hang);
igt_assert(i915_reset_control(true));
trigger_reset(fd);
+
+ gem_context_destroy(fd, ctx);
}
static void test_inflight_internal(int fd, unsigned int wait)
@@ -524,12 +543,15 @@ static void test_inflight_internal(int fd, unsigned int wait)
unsigned engine, nfence = 0;
int fences[16];
igt_spin_t *hang;
+ uint32_t ctx;
igt_require_gem(fd);
igt_require(gem_has_exec_fence(fd));
+ ctx = context_create_safe(fd);
+
igt_require(i915_reset_control(false));
- hang = spin_sync(fd, 0, 0);
+ hang = spin_sync(fd, ctx, 0);
memset(obj, 0, sizeof(obj));
obj[0].handle = hang->handle;
@@ -560,6 +582,8 @@ static void test_inflight_internal(int fd, unsigned int wait)
igt_spin_batch_free(fd, hang);
igt_assert(i915_reset_control(true));
trigger_reset(fd);
+
+ gem_context_destroy(fd, ctx);
}
static int fd = -1;
--
2.14.1
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