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tests/gem_ctx_exec: Add eviction test

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It didn't pan out at all since atm we don't evict context objects. But
maybe it's useful for when that happens.

v2: Actually test eviction. Took a while to figure that one out.

And indeed the testcase now fails because we don't evict the previous
context as we should.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2013-12-05 15:49:58 +01:00
parent 1a95c710f9
commit 40b586188c
2 changed files with 94 additions and 18 deletions
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2
tests/Makefile.sources
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@ -21,6 +21,7 @@ TESTS_progs_M = \
gem_concurrent_blit \
gem_cs_tlb \
gem_ctx_bad_exec \
gem_ctx_exec \
gem_dummy_reloc_loop \
gem_evict_alignment \
gem_evict_everything \
@ -75,7 +76,6 @@ TESTS_progs = \
gem_ctx_bad_destroy \
gem_ctx_basic \
gem_ctx_create \
gem_ctx_exec \
gem_double_irq_loop \
gem_exec_big \
gem_exec_blt \

92
tests/gem_ctx_exec.c
View File

@ -93,21 +93,95 @@ static int exec(int fd, uint32_t handle, int ring, int ctx_id)
return ret;
}
int main(int argc, char *argv[])
static void big_exec(int fd, uint32_t handle, int ring)
{
uint32_t handle;
uint32_t batch[2] = {0, MI_BATCH_BUFFER_END};
uint32_t ctx_id;
int fd;
struct drm_i915_gem_execbuffer2 execbuf;
struct drm_i915_gem_exec_object2 *gem_exec;
uint32_t ctx_id1, ctx_id2;
int num_buffers = gem_available_aperture_size(fd) / 4096;
int i;
igt_require(intel_get_total_ram_mb() * 2 * 1024 > num_buffers * 4);
gem_exec = calloc(num_buffers + 1, sizeof(*gem_exec));
igt_assert(gem_exec);
memset(gem_exec, 0, (num_buffers + 1) * sizeof(*gem_exec));
ctx_id1 = gem_context_create(fd);
ctx_id2 = gem_context_create(fd);
gem_exec[0].handle = handle;
execbuf.buffers_ptr = (uintptr_t)gem_exec;
execbuf.buffer_count = num_buffers + 1;
execbuf.batch_start_offset = 0;
execbuf.batch_len = 8;
execbuf.cliprects_ptr = 0;
execbuf.num_cliprects = 0;
execbuf.DR1 = 0;
execbuf.DR4 = 0;
execbuf.flags = ring;
execbuf.rsvd2 = 0;
execbuf.buffer_count = 1;
i915_execbuffer2_set_context_id(execbuf, ctx_id1);
igt_assert(drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2,
&execbuf) == 0);
for (i = 0; i < num_buffers; i++) {
uint32_t tmp_handle = gem_create(fd, 4096);
gem_exec[i].handle = tmp_handle;
}
gem_exec[i].handle = handle;
execbuf.buffer_count = i + 1;
/* figure out how many buffers we can exactly fit */
while (drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2,
&execbuf) != 0) {
i--;
gem_close(fd, gem_exec[i].handle);
gem_exec[i].handle = handle;
execbuf.buffer_count--;
printf("trying buffer count %i\n", i - 1);
}
printf("reduced buffer count to %i from %i\n",
i - 1, num_buffers);
/* double check that it works */
igt_assert(drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2,
&execbuf) == 0);
i915_execbuffer2_set_context_id(execbuf, ctx_id2);
igt_assert(drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2,
&execbuf) == 0);
gem_sync(fd, handle);
}
uint32_t handle;
uint32_t batch[2] = {0, MI_BATCH_BUFFER_END};
uint32_t ctx_id;
int fd;
igt_main
{
igt_skip_on_simulation();
igt_fixture {
fd = drm_open_any_render();
ctx_id = gem_context_create(fd);
handle = gem_create(fd, 4096);
/* check that we can create contexts. */
ctx_id = gem_context_create(fd);
context_destroy(fd, ctx_id);
gem_write(fd, handle, 0, batch, sizeof(batch));
}
igt_subtest("basic") {
ctx_id = gem_context_create(fd);
igt_assert(exec(fd, handle, I915_EXEC_RENDER, ctx_id) == 0);
context_destroy(fd, ctx_id);
@ -116,6 +190,8 @@ int main(int argc, char *argv[])
context_destroy(fd, ctx_id);
igt_assert(exec(fd, handle, I915_EXEC_RENDER, ctx_id) < 0);
}
igt_success();
igt_subtest("eviction")
big_exec(fd, handle, I915_EXEC_RENDER);
}