[igt-dev] [Intel-gfx] [PATCH i-g-t 1/2] tests/gem_ctx_bad_exec: Consolidate to gem_ctx_exec

[Tvrtko Ursulin]

On 18/09/2018 10:44, Chris Wilson wrote:
> Quoting Tvrtko Ursulin (2018-09-18 10:38:44)
>>
>> On 17/09/2018 16:52, Chris Wilson wrote:
>>> Quoting Tvrtko Ursulin (2018-09-17 16:46:18)
>>>> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>>>>
>>>> Move a really small test that invalid context is rejected under the
>>>> gem_ctx_exec umbrella.
>>>>
>>>> v2:
>>>>    * And actually fix the test so it does what it claims. And add more
>>>>      variety in the invalid context id's it tests with. (Chris Wilson)
>>>>
>>>> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>>>> ---
>>>>    tests/Makefile.sources   |  1 -
>>>>    tests/gem_ctx_bad_exec.c | 60 ----------------------------------------
>>>>    tests/gem_ctx_exec.c     | 34 +++++++++++++++++++++++
>>>>    tests/meson.build        |  1 -
>>>>    4 files changed, 34 insertions(+), 62 deletions(-)
>>>>    delete mode 100644 tests/gem_ctx_bad_exec.c
>>>>
>>>> diff --git a/tests/Makefile.sources b/tests/Makefile.sources
>>>> index c84933f1d971..269336ad3150 100644
>>>> --- a/tests/Makefile.sources
>>>> +++ b/tests/Makefile.sources
>>>> @@ -51,7 +51,6 @@ TESTS_progs = \
>>>>           gem_cs_prefetch \
>>>>           gem_cs_tlb \
>>>>           gem_ctx_bad_destroy \
>>>> -       gem_ctx_bad_exec \
>>>>           gem_ctx_create \
>>>>           gem_ctx_exec \
>>>>           gem_ctx_isolation \
>>>> diff --git a/tests/gem_ctx_bad_exec.c b/tests/gem_ctx_bad_exec.c
>>>> deleted file mode 100644
>>>> index e3ccc5be46a0..000000000000
>>>> --- a/tests/gem_ctx_bad_exec.c
>>>> +++ /dev/null
>>>> @@ -1,60 +0,0 @@
>>>> -/*
>>>> - * Copyright © 2012 Intel Corporation
>>>> - *
>>>> - * Permission is hereby granted, free of charge, to any person obtaining a
>>>> - * copy of this software and associated documentation files (the "Software"),
>>>> - * to deal in the Software without restriction, including without limitation
>>>> - * the rights to use, copy, modify, merge, publish, distribute, sublicense,
>>>> - * and/or sell copies of the Software, and to permit persons to whom the
>>>> - * Software is furnished to do so, subject to the following conditions:
>>>> - *
>>>> - * The above copyright notice and this permission notice (including the next
>>>> - * paragraph) shall be included in all copies or substantial portions of the
>>>> - * Software.
>>>> - *
>>>> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
>>>> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
>>>> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
>>>> - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
>>>> - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
>>>> - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
>>>> - * IN THE SOFTWARE.
>>>> - *
>>>> - */
>>>> -
>>>> -#include "igt.h"
>>>> -
>>>> -IGT_TEST_DESCRIPTION("Test that context cannot be submitted to any ring");
>>>> -
>>>> -static int exec(int fd, unsigned ring)
>>>> -{
>>>> -       struct drm_i915_gem_execbuffer2 execbuf;
>>>> -       struct drm_i915_gem_exec_object2 obj;
>>>> -
>>>> -       memset(&obj, 0, sizeof(obj));
>>>> -       memset(&execbuf, 0, sizeof(execbuf));
>>>> -
>>>> -       execbuf.buffers_ptr = to_user_pointer(&obj);
>>>> -       execbuf.buffer_count = 1;
>>>> -       i915_execbuffer2_set_context_id(execbuf, 1);
>>>> -
>>>> -       return __gem_execbuf(fd, &execbuf);
>>>> -}
>>>> -
>>>> -igt_main
>>>> -{
>>>> -       const struct intel_execution_engine *e;
>>>> -       int fd = -1;
>>>> -
>>>> -       igt_skip_on_simulation();
>>>> -
>>>> -       igt_fixture
>>>> -               fd = drm_open_driver_render(DRIVER_INTEL);
>>>> -
>>>> -       for (e = intel_execution_engines; e->name; e++) {
>>>> -               igt_subtest_f("%s", e->name) {
>>>> -                       gem_require_ring(fd, e->exec_id | e->flags);
>>>> -                       igt_assert_eq(exec(fd, e->exec_id | e->flags), -ENOENT);
>>>> -               }
>>>> -       }
>>>> -}
>>>> diff --git a/tests/gem_ctx_exec.c b/tests/gem_ctx_exec.c
>>>> index 1f8ed64d4bd3..4ed6febe12b8 100644
>>>> --- a/tests/gem_ctx_exec.c
>>>> +++ b/tests/gem_ctx_exec.c
>>>> @@ -30,6 +30,7 @@
>>>>     */
>>>>    
>>>>    #include "igt.h"
>>>> +#include <limits.h>
>>>>    #include <unistd.h>
>>>>    #include <stdlib.h>
>>>>    #include <stdint.h>
>>>> @@ -142,6 +143,30 @@ static void big_exec(int fd, uint32_t handle, int ring)
>>>>           gem_sync(fd, handle);
>>>>    }
>>>>    
>>>> +static void invalid_context(int fd, unsigned ring, uint32_t handle)
>>>> +{
>>>> +       struct drm_i915_gem_exec_object2 obj = {
>>>> +               .handle = handle,
>>>> +       };
>>>> +       struct drm_i915_gem_execbuffer2 execbuf = {
>>>> +               .buffers_ptr = to_user_pointer(&obj),
>>>> +               .buffer_count = 1,
>>>> +               .flags = ring,
>>>> +       };
>>>> +       const uint64_t invalid[] = { 1, INT_MAX, UINT_MAX, LONG_MAX, ULONG_MAX,
>>>> +                                    LLONG_MAX, ULLONG_MAX };
>>>
>>> The field is only a u32. Strange you didn't notice that amidst the
>>> absence of documentation ;)
>>>
>>> Trim this array to suite, and
>>> Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
>>
>> Can I say it is testing the i915_execbuffer2_set_context_id as well by
>> knowing underlying ABI field is 64-bit wide and keep the r-b? (No trash
>> in unused part of rsvd1.)
> 
> The field isn't 64-bit wide, so the test would be misleading unfortunately.

rsvd1? It is 64-bit in i915_drm.h I am looking at. And ABI is free to 
set it directly.

But true, it seems we are not checking for trash in upper 32-bits in 
execbuf paths.. :(

So this means regardless of what helper does the ABI is actually 64-bit. 
So test should actually bypass the helper I think and set rsvd1 directly 
I think. And keep the 64-bit invalid values.

Regards,

Tvrtko