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igt/gem_exec_whisper: Test submission between fds

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2016-03-11 14:31:56 +00:00
parent 6291678f31
commit 9eacbd2acd
1 changed files with 43 additions and 1 deletions
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44
tests/gem_exec_whisper.c
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@ -84,6 +84,7 @@ static bool ignore_engine(int gen, unsigned engine)
}
#define CONTEXTS 0x1
#define FDS 0x2
static void whisper(int fd, unsigned flags)
{
@ -91,6 +92,7 @@ static void whisper(int fd, unsigned flags)
struct drm_i915_gem_exec_object2 batches[1024];
struct drm_i915_gem_relocation_entry inter[1024];
struct drm_i915_gem_relocation_entry reloc;
int fds[64];
uint32_t contexts[64];
uint32_t scratch;
unsigned engines[16];
@ -132,6 +134,11 @@ static void whisper(int fd, unsigned flags)
for (n = 1; n < 64; n++)
contexts[n] = gem_context_create(fd);
}
if (flags & FDS) {
igt_require(gen >= 6);
for (n = 0; n < 64; n++)
fds[n] = drm_open_driver(DRIVER_INTEL);
}
memset(batches, 0, sizeof(batches));
for (n = 0; n < 1024; n++) {
@ -171,16 +178,39 @@ static void whisper(int fd, unsigned flags)
gem_write(fd, batches[1023].handle, 4*loc, &pass, sizeof(pass));
for (n = 1024; --n >= 1; ) {
int this_fd = fd;
uint32_t handle[2];
execbuf.buffers_ptr = (uintptr_t)&batches[n-1];
batches[n-1].relocation_count = 0;
if (flags & FDS) {
this_fd = fds[rand() % 64];
handle[0] = batches[n-1].handle;
handle[1] = batches[n].handle;
batches[n-1].handle =
gem_open(this_fd,
gem_flink(fd, handle[0]));
batches[n].handle =
gem_open(this_fd,
gem_flink(fd, handle[1]));
}
execbuf.flags &= ~ENGINE_MASK;
execbuf.flags |= engines[rand() % nengine];
if (flags & CONTEXTS)
execbuf.rsvd1 = contexts[rand() % 64];
gem_execbuf(fd, &execbuf);
gem_execbuf(this_fd, &execbuf);
batches[n-1].relocation_count = 1;
if (this_fd != fd) {
gem_close(this_fd, batches[n-1].handle);
batches[n-1].handle = handle[0];
gem_close(this_fd, batches[n].handle);
batches[n].handle = handle[1];
}
}
execbuf.flags &= ~ENGINE_MASK;
execbuf.rsvd1 = 0;
@ -204,6 +234,15 @@ static void whisper(int fd, unsigned flags)
check_bo(fd, scratch);
gem_close(fd, scratch);
if (flags & FDS) {
for (n = 0; n < 64; n++)
close(fds[n]);
}
if (flags & CONTEXTS) {
for (n = 0; n < 64; n++)
gem_context_destroy(fd, contexts[n]);
}
for (n = 0; n < 1024; n++)
gem_create(fd, batches[n].handle);
}
@ -221,6 +260,9 @@ igt_main
igt_subtest("contexts")
whisper(fd, CONTEXTS);
igt_subtest("fds")
whisper(fd, FDS);
igt_fixture
close(fd);
}