Re: [PATCH i-g-t 05/16] i915/gem_ctx_create: Basic checks for constructor properties

Tvrtko Ursulin
2019-05-14T12:27:38Z

On 08/05/2019 11:09, Chris Wilson wrote:
> Check that the extended create interface accepts setparam.
>
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> ---
> tests/i915/gem_ctx_create.c | 225 ++++++++++++++++++++++++++++++++++--
> 1 file changed, 213 insertions(+), 12 deletions(-)
>
> diff --git a/tests/i915/gem_ctx_create.c b/tests/i915/gem_ctx_create.c
> index a664070db..9b4fddbe7 100644
> --- a/tests/i915/gem_ctx_create.c
> +++ b/tests/i915/gem_ctx_create.c
> @@ -33,6 +33,7 @@
> #include <time.h>
>
> #include "igt_rand.h"
> +#include "sw_sync.h"
>
> #define LOCAL_I915_EXEC_BSD_SHIFT (13)
> #define LOCAL_I915_EXEC_BSD_MASK (3 << LOCAL_I915_EXEC_BSD_SHIFT)
> @@ -45,12 +46,33 @@ static unsigned all_nengine;
> static unsigned ppgtt_engines[16];
> static unsigned ppgtt_nengine;
>
> -static int __gem_context_create_local(int fd, struct drm_i915_gem_context_create *arg)
> +static int create_ioctl(int fd, struct drm_i915_gem_context_create *arg)
> {
> - int ret = 0;
> - if (drmIoctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_CREATE, arg))
> - ret = -errno;
> - return ret;
> + int err;
> +
> + err = 0;
> + if (igt_ioctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_CREATE, arg)) {
> + err = -errno;
> + igt_assert(err);
> + }
> +
> + errno = 0;
> + return err;
> +}
> +
> +static int create_ext_ioctl(int i915,
> + struct drm_i915_gem_context_create_ext *arg)
> +{
> + int err;
> +
> + err = 0;
> + if (igt_ioctl(i915, DRM_IOCTL_I915_GEM_CONTEXT_CREATE_EXT, arg)) {
> + err = -errno;
> + igt_assume(err);
> + }
> +
> + errno = 0;
> + return err;
> }
>
> static double elapsed(const struct timespec *start,
> @@ -308,6 +330,187 @@ static void maximum(int fd, int ncpus, unsigned mode)
> free(contexts);
> }
>
> +static void basic_ext_param(int i915)
> +{
> + struct drm_i915_gem_context_create_ext_setparam ext = {
> + { .name = I915_CONTEXT_CREATE_EXT_SETPARAM },
> + };
> + struct drm_i915_gem_context_create_ext create = {
> + .flags = I915_CONTEXT_CREATE_FLAGS_USE_EXTENSIONS
> + };
> + struct drm_i915_gem_context_param get;
> +
> + igt_require(create_ext_ioctl(i915, &create) == 0);
> + gem_context_destroy(i915, create.ctx_id);
> +
> + create.extensions = -1ull;
> + igt_assert_eq(create_ext_ioctl(i915, &create), -EFAULT);
> +
> + create.extensions = to_user_pointer(&ext);
> + igt_assert_eq(create_ext_ioctl(i915, &create), -EINVAL);

I think this is the unknown param, right?

Need another -EINVAL test for non-zero ext.ctx_id.

Regards,

Tvrtko

> +
> + ext.param.param = I915_CONTEXT_PARAM_PRIORITY;
> + if (create_ext_ioctl(i915, &create) != -ENODEV) {
> + gem_context_destroy(i915, create.ctx_id);
> +
> + ext.base.next_extension = -1ull;
> + igt_assert_eq(create_ext_ioctl(i915, &create), -EFAULT);
> + ext.base.next_extension = to_user_pointer(&ext);
> + igt_assert_eq(create_ext_ioctl(i915, &create), -E2BIG);
> + ext.base.next_extension = 0;
> +
> + ext.param.value = 32;
> + igt_assert_eq(create_ext_ioctl(i915, &create), 0);
> +
> + memset(&get, 0, sizeof(get));
> + get.ctx_id = create.ctx_id;
> + get.param = I915_CONTEXT_PARAM_PRIORITY;
> + gem_context_get_param(i915, &get);
> + igt_assert_eq(get.value, ext.param.value);
> +
> + gem_context_destroy(i915, create.ctx_id);
> + }
> +}
> +
> +static void check_single_timeline(int i915, uint32_t ctx, int num_engines)
> +{
> +#define RCS_TIMESTAMP (0x2000 + 0x358)
> + const int gen = intel_gen(intel_get_drm_devid(i915));
> + const int has_64bit_reloc = gen >= 8;
> + struct drm_i915_gem_exec_object2 results = { .handle = gem_create(i915, 4096) };
> + const uint32_t bbe = MI_BATCH_BUFFER_END;
> + int timeline = sw_sync_timeline_create();
> + uint32_t last, *map;
> +
> + {
> + struct drm_i915_gem_execbuffer2 execbuf = {
> + .buffers_ptr = to_user_pointer(&results),
> + .buffer_count = 1,
> + .rsvd1 = ctx,
> + };
> + gem_write(i915, results.handle, 0, &bbe, sizeof(bbe));
> + gem_execbuf(i915, &execbuf);
> + results.flags = EXEC_OBJECT_PINNED;
> + }
> +
> + for (int i = 0; i < num_engines; i++) {
> + struct drm_i915_gem_exec_object2 obj[2] = {
> + results, /* write hazard lies! */
> + { .handle = gem_create(i915, 4096) },
> + };
> + struct drm_i915_gem_execbuffer2 execbuf = {
> + .buffers_ptr = to_user_pointer(obj),
> + .buffer_count = 2,
> + .rsvd1 = ctx,
> + .rsvd2 = sw_sync_timeline_create_fence(timeline, num_engines - i),
> + .flags = i | I915_EXEC_FENCE_IN,
> + };
> + uint64_t offset = results.offset + 4 * i;
> + uint32_t *cs;
> + int j = 0;
> +
> + cs = gem_mmap__cpu(i915, obj[1].handle, 0, 4096, PROT_WRITE);
> +
> + cs[j] = 0x24 << 23 | 1; /* SRM */
> + if (has_64bit_reloc)
> + cs[j]++;
> + j++;
> + cs[j++] = RCS_TIMESTAMP;
> + cs[j++] = offset;
> + if (has_64bit_reloc)
> + cs[j++] = offset >> 32;
> + cs[j++] = MI_BATCH_BUFFER_END;
> +
> + munmap(cs, 4096);
> +
> + gem_execbuf(i915, &execbuf);
> + gem_close(i915, obj[1].handle);
> + close(execbuf.rsvd2);
> + }
> + close(timeline);
> + gem_sync(i915, results.handle);
> +
> + map = gem_mmap__cpu(i915, results.handle, 0, 4096, PROT_READ);
> + gem_set_domain(i915, results.handle, I915_GEM_DOMAIN_CPU, 0);
> + gem_close(i915, results.handle);
> +
> + last = map[0];
> + for (int i = 1; i < num_engines; i++) {
> + igt_assert_f((map[i] - last) > 0,
> + "Engine instance [%d] executed too early: this:%x, last:%x\n",
> + i, map[i], last);
> + last = map[i];
> + }
> + munmap(map, 4096);
> +}
> +
> +static void iris_pipeline(int i915)
> +{
> +#ifdef I915_DEFINE_CONTEXT_PARAM_ENGINES
> +#define RCS0 {0, 0}
> + I915_DEFINE_CONTEXT_PARAM_ENGINES(engines, 2) = {
> + .engines = { RCS0, RCS0 }
> + };
> + struct drm_i915_gem_context_create_ext_setparam p_engines = {
> + .base = {
> + .name = I915_CONTEXT_CREATE_EXT_SETPARAM,
> + .next_extension = 0, /* end of chain */
> + },
> + .param = {
> + .param = I915_CONTEXT_PARAM_ENGINES,
> + .value = to_user_pointer(&engines),
> + .size = sizeof(engines),
> + },
> + };
> + struct drm_i915_gem_context_create_ext_setparam p_recover = {
> + .base = {
> + .name =I915_CONTEXT_CREATE_EXT_SETPARAM,
> + .next_extension = to_user_pointer(&p_engines),
> + },
> + .param = {
> + .param = I915_CONTEXT_PARAM_RECOVERABLE,
> + .value = 0,
> + },
> + };
> + struct drm_i915_gem_context_create_ext_setparam p_prio = {
> + .base = {
> + .name =I915_CONTEXT_CREATE_EXT_SETPARAM,
> + .next_extension = to_user_pointer(&p_recover),
> + },
> + .param = {
> + .param = I915_CONTEXT_PARAM_PRIORITY,
> + .value = 768,
> + },
> + };
> + struct drm_i915_gem_context_create_ext create = {
> + .flags = (I915_CONTEXT_CREATE_FLAGS_SINGLE_TIMELINE |
> + I915_CONTEXT_CREATE_FLAGS_USE_EXTENSIONS),
> + };
> + struct drm_i915_gem_context_param get;
> +
> + igt_require(create_ext_ioctl(i915, &create) == 0);
> +
> + create.extensions = to_user_pointer(&p_prio);
> + igt_assert_eq(create_ext_ioctl(i915, &create), 0);
> +
> + memset(&get, 0, sizeof(get));
> + get.ctx_id = create.ctx_id;
> + get.param = I915_CONTEXT_PARAM_PRIORITY;
> + gem_context_get_param(i915, &get);
> + igt_assert_eq(get.value, p_prio.param.value);
> +
> + memset(&get, 0, sizeof(get));
> + get.ctx_id = create.ctx_id;
> + get.param = I915_CONTEXT_PARAM_RECOVERABLE;
> + gem_context_get_param(i915, &get);
> + igt_assert_eq(get.value, 0);
> +
> + check_single_timeline(i915, create.ctx_id, 2);
> +
> + gem_context_destroy(i915, create.ctx_id);
> +#endif /* I915_DEFINE_CONTEXT_PARAM_ENGINES */
> +}
> +
> igt_main
> {
> const int ncpus = sysconf(_SC_NPROCESSORS_ONLN);
> @@ -340,17 +543,15 @@ igt_main
> memset(&create, 0, sizeof(create));
> create.ctx_id = rand();
> create.pad = 0;
> - igt_assert_eq(__gem_context_create_local(fd, &create), 0);
> + igt_assert_eq(create_ioctl(fd, &create), 0);
> igt_assert(create.ctx_id != 0);
> gem_context_destroy(fd, create.ctx_id);
> }
>
> - igt_subtest("invalid-pad") {
> - memset(&create, 0, sizeof(create));
> - create.ctx_id = rand();
> - create.pad = 1;
> - igt_assert_eq(__gem_context_create_local(fd, &create), -EINVAL);
> - }
> + igt_subtest("ext-param")
> + basic_ext_param(fd);
> + igt_subtest("iris-pipeline")
> + iris_pipeline(fd);
>
> igt_subtest("maximum-mem")
> maximum(fd, ncpus, CHECK_RAM);