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igt/drv_hangman: Inject a true hang

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Wean drv_hangman off the atrocious stop_rings and use a real GPU hang
instead.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2015-12-11 13:27:49 +00:00
parent 8f6957a05a
commit 0753057446
1 changed files with 12 additions and 50 deletions
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62
tests/drv_hangman.c
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@ -147,59 +147,21 @@ static void assert_error_state_collected(void)
assert_dfs_entry_not("i915_error_state", "no error state collected"); assert_dfs_entry_not("i915_error_state", "no error state collected");
} }
#define MAGIC_NUMBER 0x10001 const uint32_t *batch;
const uint32_t batch[] = { MI_NOOP,
MI_BATCH_BUFFER_END,
MAGIC_NUMBER,
MAGIC_NUMBER };
static uint64_t submit_batch(int fd, unsigned ring_id, bool stop_ring) static uint64_t submit_hang(int fd, unsigned ring_id)
{ {
struct drm_i915_gem_execbuffer2 execbuf; uint64_t offset;
struct drm_i915_gem_exec_object2 exec; igt_hang_ring_t hang;
uint64_t presumed_offset;
gem_require_ring(fd, ring_id); hang = igt_hang_ctx(fd, 0, ring_id, HANG_ALLOW_CAPTURE, &offset);
exec.handle = gem_create(fd, 4096); batch = gem_mmap__cpu(fd, hang.handle, 0, 4096, PROT_READ);
gem_write(fd, exec.handle, 0, batch, sizeof(batch)); gem_set_domain(fd, hang.handle, I915_GEM_DOMAIN_CPU, 0);
exec.relocation_count = 0;
exec.relocs_ptr = 0;
exec.alignment = 0;
exec.offset = 0;
exec.flags = 0;
exec.rsvd1 = 0;
exec.rsvd2 = 0;
execbuf.buffers_ptr = (uintptr_t)&exec; igt_post_hang_ring(fd, hang);
execbuf.buffer_count = 1;
execbuf.batch_start_offset = 0;
execbuf.batch_len = sizeof(batch);
execbuf.cliprects_ptr = 0;
execbuf.num_cliprects = 0;
execbuf.DR1 = 0;
execbuf.DR4 = 0;
execbuf.flags = ring_id;
i915_execbuffer2_set_context_id(execbuf, 0);
execbuf.rsvd2 = 0;
gem_execbuf(fd, &execbuf); return offset;
gem_sync(fd, exec.handle);
presumed_offset = exec.offset;
if (stop_ring) {
igt_set_stop_rings(igt_to_stop_ring_flag(ring_id));
gem_execbuf(fd, &execbuf);
gem_sync(fd, exec.handle);
igt_assert(igt_get_stop_rings() == STOP_RING_NONE);
igt_assert(presumed_offset == exec.offset);
}
gem_close(fd, exec.handle);
return exec.offset;
} }
static void clear_error_state(void) static void clear_error_state(void)
@ -222,7 +184,7 @@ static void test_error_state_basic(void)
clear_error_state(); clear_error_state();
assert_error_state_clear(); assert_error_state_clear();
submit_batch(fd, I915_EXEC_RENDER, true); submit_hang(fd, I915_EXEC_RENDER);
close(fd); close(fd);
assert_error_state_collected(); assert_error_state_collected();
@ -276,7 +238,7 @@ static void check_error_state(const int gen,
if (!uses_cmd_parser) if (!uses_cmd_parser)
igt_assert(gtt_offset == expected_offset); igt_assert(gtt_offset == expected_offset);
for (i = 0; i < sizeof(batch) / 4; i++) { for (i = 0; i < 1024; i++) {
igt_assert(getline(&line, &line_size, file) > 0); igt_assert(getline(&line, &line_size, file) > 0);
snprintf(expected_line, sizeof(expected_line), "%08x : %08x", snprintf(expected_line, sizeof(expected_line), "%08x : %08x",
4*i, batch[i]); 4*i, batch[i]);
@ -381,7 +343,7 @@ static void test_error_state_capture(unsigned ring_id,
gen = intel_gen(intel_get_drm_devid(fd)); gen = intel_gen(intel_get_drm_devid(fd));
cmd_parser = uses_cmd_parser(fd, gen); cmd_parser = uses_cmd_parser(fd, gen);
offset = submit_batch(fd, ring_id, true); offset = submit_hang(fd, ring_id);
close(fd); close(fd);
check_error_state(gen, cmd_parser, ring_name, offset); check_error_state(gen, cmd_parser, ring_name, offset);