The only detail of note here was that we were creating a fence from the
recursive batch, now supported by igt_spin_t (thanks Tvrtko).
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursu...@intel.com>
Cc: Matthew Auld <matthew.a...@intel.com>
Reviewed-by: Matthew Auld <matthew.a...@intel.com>
---
lib/igt_core.c | 1 +
lib/igt_dummyload.c | 5 +++
lib/igt_dummyload.h | 1 +
tests/i915/gem_exec_fence.c | 77 ++++++++-----------------------------
4 files changed, 22 insertions(+), 62 deletions(-)
diff --git a/lib/igt_core.c b/lib/igt_core.c
index d5d4fce26..3ae11cef0 100644
--- a/lib/igt_core.c
+++ b/lib/igt_core.c
@@ -1731,6 +1731,7 @@ bool __igt_fork(void)
exit_handler_count = 0;
reset_helper_process_list();
oom_adjust_for_doom();
+ igt_unclone_spins();
return true;
default:
diff --git a/lib/igt_dummyload.c b/lib/igt_dummyload.c
index 1e11ccd3d..d1521f9a0 100644
--- a/lib/igt_dummyload.c
+++ b/lib/igt_dummyload.c
@@ -464,6 +464,11 @@ void igt_terminate_spins(void)
pthread_mutex_unlock(&list_lock);
}
+void igt_unclone_spins(void)
+{
+ igt_list_init(&spin_list);
+}
+
static uint32_t plug_vgem_handle(struct igt_cork *cork, int fd)
{
struct vgem_bo bo;
diff --git a/lib/igt_dummyload.h b/lib/igt_dummyload.h
index 61a9f2fcf..b9eca3519 100644
--- a/lib/igt_dummyload.h
+++ b/lib/igt_dummyload.h
@@ -92,6 +92,7 @@ static inline void igt_spin_busywait_until_started(igt_spin_t
*spin)
}
void igt_terminate_spins(void);
+void igt_unclone_spins(void);
enum igt_cork_type {
CORK_SYNC_FD = 1,
diff --git a/tests/i915/gem_exec_fence.c b/tests/i915/gem_exec_fence.c
index 8120f8b56..0befb54f8 100644
--- a/tests/i915/gem_exec_fence.c
+++ b/tests/i915/gem_exec_fence.c
@@ -317,68 +317,22 @@ static void test_fence_busy_all(int fd, unsigned flags)
static void test_fence_await(int fd, unsigned ring, unsigned flags)
{
- const int gen = intel_gen(intel_get_drm_devid(fd));
- struct drm_i915_gem_exec_object2 obj;
- struct drm_i915_gem_relocation_entry reloc;
- struct drm_i915_gem_execbuffer2 execbuf;
uint32_t scratch = gem_create(fd, 4096);
- uint32_t *batch, *out;
+ igt_spin_t *spin;
unsigned engine;
- int fence, i;
+ uint32_t *out;
+ int i;
igt_require(gem_can_store_dword(fd, 0));
- memset(&execbuf, 0, sizeof(execbuf));
- execbuf.buffers_ptr = to_user_pointer(&obj);
- execbuf.buffer_count = 1;
- execbuf.flags = ring | LOCAL_EXEC_FENCE_OUT;
-
- memset(&obj, 0, sizeof(obj));
- obj.handle = gem_create(fd, 4096);
-
- obj.relocs_ptr = to_user_pointer(&reloc);
- obj.relocation_count = 1;
- memset(&reloc, 0, sizeof(reloc));
-
out = gem_mmap__wc(fd, scratch, 0, 4096, PROT_WRITE);
- gem_set_domain(fd, obj.handle,
- I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
-
- batch = gem_mmap__wc(fd, obj.handle, 0, 4096, PROT_WRITE);
- gem_set_domain(fd, obj.handle,
+ gem_set_domain(fd, scratch,
I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
- reloc.target_handle = obj.handle; /* recurse */
- reloc.presumed_offset = 0;
- reloc.offset = sizeof(uint32_t);
- reloc.delta = 0;
- reloc.read_domains = I915_GEM_DOMAIN_COMMAND;
- reloc.write_domain = 0;
-
- i = 0;
- batch[i] = MI_BATCH_BUFFER_START;
- if (gen >= 8) {
- batch[i] |= 1 << 8 | 1;
- batch[++i] = 0;
- batch[++i] = 0;
- } else if (gen >= 6) {
- batch[i] |= 1 << 8;
- batch[++i] = 0;
- } else {
- batch[i] |= 2 << 6;
- batch[++i] = 0;
- if (gen < 4) {
- batch[i] |= 1;
- reloc.delta = 1;
- }
- }
- i++;
-
- execbuf.rsvd2 = -1;
- gem_execbuf_wr(fd, &execbuf);
- gem_close(fd, obj.handle);
- fence = execbuf.rsvd2 >> 32;
- igt_assert(fence != -1);
+ spin = igt_spin_new(fd,
+ .engine = ring,
+ .flags = IGT_SPIN_FENCE_OUT);
+ igt_assert(spin->out_fence != -1);
i = 0;
for_each_physical_engine(fd, engine) {
@@ -386,27 +340,24 @@ static void test_fence_await(int fd, unsigned ring,
unsigned flags)
continue;
if (flags & NONBLOCK) {
- store(fd, engine, fence, scratch, i);
+ store(fd, engine, spin->out_fence, scratch, i);
} else {
igt_fork(child, 1)
- store(fd, engine, fence, scratch, i);
+ store(fd, engine, spin->out_fence, scratch, i);
}
i++;
}
- close(fence);
sleep(1);
/* Check for invalidly completing the task early */
+ igt_assert(fence_busy(spin->out_fence));
for (int n = 0; n < i; n++)
igt_assert_eq_u32(out[n], 0);
- if ((flags & HANG) == 0) {
- *batch = MI_BATCH_BUFFER_END;
- __sync_synchronize();
- }
- munmap(batch, 4096);
+ if ((flags & HANG) == 0)
+ igt_spin_end(spin);
igt_waitchildren();
@@ -414,6 +365,8 @@ static void test_fence_await(int fd, unsigned ring,
unsigned flags)
while (i--)
igt_assert_eq_u32(out[i], i);
munmap(out, 4096);
+
+ igt_spin_free(fd, spin);
gem_close(fd, scratch);
}
--
2.20.1
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