diff mbox series

[igt,v2,3/3] msm: Add submit ioctl tests

Message ID 20210825233139.1066504-4-robdclark@gmail.com (mailing list archive)
State Superseded
Headers show
Series Initial igt tests for drm/msm ioctls | expand

Commit Message

Rob Clark Aug. 25, 2021, 11:31 p.m. UTC
From: Rob Clark <robdclark@chromium.org>

Add an initial set of tests for the submit ioctl.

Signed-off-by: Rob Clark <robdclark@chromium.org>
---
 tests/meson.build  |   1 +
 tests/msm_submit.c | 186 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 187 insertions(+)
 create mode 100644 tests/msm_submit.c

Comments

Petri Latvala Aug. 26, 2021, 5:31 a.m. UTC | #1
On Wed, Aug 25, 2021 at 04:31:39PM -0700, Rob Clark wrote:
> From: Rob Clark <robdclark@chromium.org>
> 
> Add an initial set of tests for the submit ioctl.
> 
> Signed-off-by: Rob Clark <robdclark@chromium.org>
> ---
>  tests/meson.build  |   1 +
>  tests/msm_submit.c | 186 +++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 187 insertions(+)
>  create mode 100644 tests/msm_submit.c
> 
> diff --git a/tests/meson.build b/tests/meson.build
> index 1bdfddbb..ff7c709a 100644
> --- a/tests/meson.build
> +++ b/tests/meson.build
> @@ -107,6 +107,7 @@ test_progs = [
>  	'vc4_wait_seqno',
>  	'vgem_basic',
>  	'vgem_slow',
> +	'msm_submit',
>  ]
>  
>  i915_progs = [
> diff --git a/tests/msm_submit.c b/tests/msm_submit.c
> new file mode 100644
> index 00000000..da93c574
> --- /dev/null
> +++ b/tests/msm_submit.c
> @@ -0,0 +1,186 @@
> +/*
> + * Copyright © 2021 Google, Inc.
> + *
> + * 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"
> +#include "igt_msm.h"
> +
> +igt_main
> +{
> +	struct msm_device *dev;
> +	struct msm_pipe *pipe;
> +	struct msm_bo *a, *b;
> +
> +	igt_fixture {
> +		dev = igt_msm_dev_open();

What I replied on 2/3 applies here: If opening the device fails,
igt_msm_dev_open() does not return and 'dev' is left uninitialized,
those other pointers likewise. Leading to...

> +		pipe = igt_msm_pipe_open(dev, 0);
> +		a = igt_msm_bo_new(dev, 0x1000, MSM_BO_WC);
> +		b = igt_msm_bo_new(dev, 0x1000, MSM_BO_WC);
> +	}
> +
> +	igt_subtest("empty-submit") {
> +		struct drm_msm_gem_submit req = {
> +				.flags   = pipe->pipe,
> +				.queueid = pipe->submitqueue_id,
> +		};
> +		do_ioctl(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req);
> +	}
> +
> +	igt_subtest("invalid-queue-submit") {
> +		struct drm_msm_gem_submit req = {
> +				.flags   = pipe->pipe,
> +				.queueid = 0x1234,
> +		};
> +		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, ENOENT);
> +	}
> +
> +	igt_subtest("invalid-flags-submit") {
> +		struct drm_msm_gem_submit req = {
> +				.flags   = 0x1234,
> +				.queueid = pipe->submitqueue_id,
> +		};
> +		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> +	}
> +
> +	igt_subtest("invalid-in-fence-submit") {
> +		struct drm_msm_gem_submit req = {
> +				.flags   = pipe->pipe | MSM_SUBMIT_FENCE_FD_IN,
> +				.queueid = pipe->submitqueue_id,
> +				.fence_fd = dev->fd,  /* This is not a fence fd! */
> +		};
> +		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> +	}
> +
> +	igt_subtest("invalid-duplicate-bo-submit") {
> +		struct drm_msm_gem_submit_bo bos[] = {
> +			[0] = {
> +				.handle     = a->handle,
> +				.flags      = MSM_SUBMIT_BO_READ,
> +			},
> +			[1] = {
> +				.handle     = b->handle,
> +				.flags      = MSM_SUBMIT_BO_READ,
> +			},
> +			[2] = {
> +				/* this is invalid.. there should not be two entries
> +				 * for the same bo, instead a single entry w/ all
> +				 * usage flags OR'd together should be used.  Kernel
> +				 * should catch this, and return an error code after
> +				 * cleaning up properly (not leaking any bo's)
> +				 */
> +				.handle     = a->handle,
> +				.flags      = MSM_SUBMIT_BO_WRITE,
> +			},
> +		};
> +		struct drm_msm_gem_submit req = {
> +				.flags   = pipe->pipe,
> +				.queueid = pipe->submitqueue_id,
> +				.nr_bos  = ARRAY_SIZE(bos),
> +				.bos     = VOID2U64(bos),
> +		};
> +		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> +	}
> +
> +	igt_subtest("invalid-cmd-idx-submit") {
> +		struct drm_msm_gem_submit_cmd cmds[] = {
> +			[0] = {
> +				.type       = MSM_SUBMIT_CMD_BUF,
> +				.submit_idx = 0,      /* bos[0] does not exist */
> +				.size       = 4 * 4,  /* 4 dwords in cmdbuf */
> +			},
> +		};
> +		struct drm_msm_gem_submit req = {
> +				.flags   = pipe->pipe,
> +				.queueid = pipe->submitqueue_id,
> +				.nr_cmds    = ARRAY_SIZE(cmds),
> +				.cmds       = VOID2U64(cmds),
> +		};
> +		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> +	}
> +
> +	igt_subtest("invalid-cmd-type-submit") {
> +		struct drm_msm_gem_submit_bo bos[] = {
> +			[0] = {
> +				.handle     = a->handle,
> +				.flags      = MSM_SUBMIT_BO_READ,
> +			},
> +		};
> +		struct drm_msm_gem_submit_cmd cmds[] = {
> +			[0] = {
> +				.type       = 0x1234,
> +				.submit_idx = 0,
> +				.size       = 4 * 4,  /* 4 dwords in cmdbuf */
> +			},
> +		};
> +		struct drm_msm_gem_submit req = {
> +				.flags   = pipe->pipe,
> +				.queueid = pipe->submitqueue_id,
> +				.nr_cmds    = ARRAY_SIZE(cmds),
> +				.cmds       = VOID2U64(cmds),
> +				.nr_bos  = ARRAY_SIZE(bos),
> +				.bos     = VOID2U64(bos),
> +		};
> +		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> +	}
> +
> +	igt_subtest("valid-submit") {
> +		struct drm_msm_gem_submit_bo bos[] = {
> +			[0] = {
> +				.handle     = a->handle,
> +				.flags      = MSM_SUBMIT_BO_READ,
> +			},
> +		};
> +		struct drm_msm_gem_submit_cmd cmds[] = {
> +			[0] = {
> +				.type       = MSM_SUBMIT_CMD_BUF,
> +				.submit_idx = 0,
> +				.size       = 4 * 4,  /* 4 dwords in cmdbuf */
> +			},
> +		};
> +		struct drm_msm_gem_submit req = {
> +				.flags   = pipe->pipe,
> +				.queueid = pipe->submitqueue_id,
> +				.nr_cmds    = ARRAY_SIZE(cmds),
> +				.cmds       = VOID2U64(cmds),
> +				.nr_bos  = ARRAY_SIZE(bos),
> +				.bos     = VOID2U64(bos),
> +		};
> +		uint32_t *cmdstream = igt_msm_bo_map(a);
> +		if (dev->gen >= 5) {
> +			*(cmdstream++) = pm4_pkt7_hdr(CP_NOP, 3);
> +		} else {
> +			*(cmdstream++) = pm4_pkt3_hdr(CP_NOP, 3);
> +		}
> +		*(cmdstream++) = 0;
> +		*(cmdstream++) = 0;
> +		*(cmdstream++) = 0;
> +
> +		do_ioctl(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req);
> +	}
> +
> +	igt_fixture {
> +		igt_msm_bo_free(a);
> +		igt_msm_bo_free(b);
> +		igt_msm_pipe_close(pipe);
> +		igt_msm_dev_close(dev);

... crashes in here.
Rob Clark Aug. 26, 2021, 3:37 p.m. UTC | #2
On Wed, Aug 25, 2021 at 10:28 PM Petri Latvala <petri.latvala@intel.com> wrote:
>
> On Wed, Aug 25, 2021 at 04:31:39PM -0700, Rob Clark wrote:
> > From: Rob Clark <robdclark@chromium.org>
> >
> > Add an initial set of tests for the submit ioctl.
> >
> > Signed-off-by: Rob Clark <robdclark@chromium.org>
> > ---
> >  tests/meson.build  |   1 +
> >  tests/msm_submit.c | 186 +++++++++++++++++++++++++++++++++++++++++++++
> >  2 files changed, 187 insertions(+)
> >  create mode 100644 tests/msm_submit.c
> >
> > diff --git a/tests/meson.build b/tests/meson.build
> > index 1bdfddbb..ff7c709a 100644
> > --- a/tests/meson.build
> > +++ b/tests/meson.build
> > @@ -107,6 +107,7 @@ test_progs = [
> >       'vc4_wait_seqno',
> >       'vgem_basic',
> >       'vgem_slow',
> > +     'msm_submit',
> >  ]
> >
> >  i915_progs = [
> > diff --git a/tests/msm_submit.c b/tests/msm_submit.c
> > new file mode 100644
> > index 00000000..da93c574
> > --- /dev/null
> > +++ b/tests/msm_submit.c
> > @@ -0,0 +1,186 @@
> > +/*
> > + * Copyright © 2021 Google, Inc.
> > + *
> > + * 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"
> > +#include "igt_msm.h"
> > +
> > +igt_main
> > +{
> > +     struct msm_device *dev;
> > +     struct msm_pipe *pipe;
> > +     struct msm_bo *a, *b;
> > +
> > +     igt_fixture {
> > +             dev = igt_msm_dev_open();
>
> What I replied on 2/3 applies here: If opening the device fails,
> igt_msm_dev_open() does not return and 'dev' is left uninitialized,
> those other pointers likewise. Leading to...
>
> > +             pipe = igt_msm_pipe_open(dev, 0);
> > +             a = igt_msm_bo_new(dev, 0x1000, MSM_BO_WC);
> > +             b = igt_msm_bo_new(dev, 0x1000, MSM_BO_WC);
> > +     }
> > +
> > +     igt_subtest("empty-submit") {
> > +             struct drm_msm_gem_submit req = {
> > +                             .flags   = pipe->pipe,
> > +                             .queueid = pipe->submitqueue_id,
> > +             };
> > +             do_ioctl(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req);
> > +     }
> > +
> > +     igt_subtest("invalid-queue-submit") {
> > +             struct drm_msm_gem_submit req = {
> > +                             .flags   = pipe->pipe,
> > +                             .queueid = 0x1234,
> > +             };
> > +             do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, ENOENT);
> > +     }
> > +
> > +     igt_subtest("invalid-flags-submit") {
> > +             struct drm_msm_gem_submit req = {
> > +                             .flags   = 0x1234,
> > +                             .queueid = pipe->submitqueue_id,
> > +             };
> > +             do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> > +     }
> > +
> > +     igt_subtest("invalid-in-fence-submit") {
> > +             struct drm_msm_gem_submit req = {
> > +                             .flags   = pipe->pipe | MSM_SUBMIT_FENCE_FD_IN,
> > +                             .queueid = pipe->submitqueue_id,
> > +                             .fence_fd = dev->fd,  /* This is not a fence fd! */
> > +             };
> > +             do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> > +     }
> > +
> > +     igt_subtest("invalid-duplicate-bo-submit") {
> > +             struct drm_msm_gem_submit_bo bos[] = {
> > +                     [0] = {
> > +                             .handle     = a->handle,
> > +                             .flags      = MSM_SUBMIT_BO_READ,
> > +                     },
> > +                     [1] = {
> > +                             .handle     = b->handle,
> > +                             .flags      = MSM_SUBMIT_BO_READ,
> > +                     },
> > +                     [2] = {
> > +                             /* this is invalid.. there should not be two entries
> > +                              * for the same bo, instead a single entry w/ all
> > +                              * usage flags OR'd together should be used.  Kernel
> > +                              * should catch this, and return an error code after
> > +                              * cleaning up properly (not leaking any bo's)
> > +                              */
> > +                             .handle     = a->handle,
> > +                             .flags      = MSM_SUBMIT_BO_WRITE,
> > +                     },
> > +             };
> > +             struct drm_msm_gem_submit req = {
> > +                             .flags   = pipe->pipe,
> > +                             .queueid = pipe->submitqueue_id,
> > +                             .nr_bos  = ARRAY_SIZE(bos),
> > +                             .bos     = VOID2U64(bos),
> > +             };
> > +             do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> > +     }
> > +
> > +     igt_subtest("invalid-cmd-idx-submit") {
> > +             struct drm_msm_gem_submit_cmd cmds[] = {
> > +                     [0] = {
> > +                             .type       = MSM_SUBMIT_CMD_BUF,
> > +                             .submit_idx = 0,      /* bos[0] does not exist */
> > +                             .size       = 4 * 4,  /* 4 dwords in cmdbuf */
> > +                     },
> > +             };
> > +             struct drm_msm_gem_submit req = {
> > +                             .flags   = pipe->pipe,
> > +                             .queueid = pipe->submitqueue_id,
> > +                             .nr_cmds    = ARRAY_SIZE(cmds),
> > +                             .cmds       = VOID2U64(cmds),
> > +             };
> > +             do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> > +     }
> > +
> > +     igt_subtest("invalid-cmd-type-submit") {
> > +             struct drm_msm_gem_submit_bo bos[] = {
> > +                     [0] = {
> > +                             .handle     = a->handle,
> > +                             .flags      = MSM_SUBMIT_BO_READ,
> > +                     },
> > +             };
> > +             struct drm_msm_gem_submit_cmd cmds[] = {
> > +                     [0] = {
> > +                             .type       = 0x1234,
> > +                             .submit_idx = 0,
> > +                             .size       = 4 * 4,  /* 4 dwords in cmdbuf */
> > +                     },
> > +             };
> > +             struct drm_msm_gem_submit req = {
> > +                             .flags   = pipe->pipe,
> > +                             .queueid = pipe->submitqueue_id,
> > +                             .nr_cmds    = ARRAY_SIZE(cmds),
> > +                             .cmds       = VOID2U64(cmds),
> > +                             .nr_bos  = ARRAY_SIZE(bos),
> > +                             .bos     = VOID2U64(bos),
> > +             };
> > +             do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> > +     }
> > +
> > +     igt_subtest("valid-submit") {
> > +             struct drm_msm_gem_submit_bo bos[] = {
> > +                     [0] = {
> > +                             .handle     = a->handle,
> > +                             .flags      = MSM_SUBMIT_BO_READ,
> > +                     },
> > +             };
> > +             struct drm_msm_gem_submit_cmd cmds[] = {
> > +                     [0] = {
> > +                             .type       = MSM_SUBMIT_CMD_BUF,
> > +                             .submit_idx = 0,
> > +                             .size       = 4 * 4,  /* 4 dwords in cmdbuf */
> > +                     },
> > +             };
> > +             struct drm_msm_gem_submit req = {
> > +                             .flags   = pipe->pipe,
> > +                             .queueid = pipe->submitqueue_id,
> > +                             .nr_cmds    = ARRAY_SIZE(cmds),
> > +                             .cmds       = VOID2U64(cmds),
> > +                             .nr_bos  = ARRAY_SIZE(bos),
> > +                             .bos     = VOID2U64(bos),
> > +             };
> > +             uint32_t *cmdstream = igt_msm_bo_map(a);
> > +             if (dev->gen >= 5) {
> > +                     *(cmdstream++) = pm4_pkt7_hdr(CP_NOP, 3);
> > +             } else {
> > +                     *(cmdstream++) = pm4_pkt3_hdr(CP_NOP, 3);
> > +             }
> > +             *(cmdstream++) = 0;
> > +             *(cmdstream++) = 0;
> > +             *(cmdstream++) = 0;
> > +
> > +             do_ioctl(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req);
> > +     }
> > +
> > +     igt_fixture {
> > +             igt_msm_bo_free(a);
> > +             igt_msm_bo_free(b);
> > +             igt_msm_pipe_close(pipe);
> > +             igt_msm_dev_close(dev);
>
> ... crashes in here.
>

I did test this on intel as well, and it skips properly.. I think the
setjmp/longjmp magic just bails completely out so we never try to run
the cleanup?

BR,
-R
Petri Latvala Aug. 27, 2021, 5:37 a.m. UTC | #3
On Thu, Aug 26, 2021 at 08:37:19AM -0700, Rob Clark wrote:
> On Wed, Aug 25, 2021 at 10:28 PM Petri Latvala <petri.latvala@intel.com> wrote:
> >
> > On Wed, Aug 25, 2021 at 04:31:39PM -0700, Rob Clark wrote:
> > > From: Rob Clark <robdclark@chromium.org>
> > >
> > > Add an initial set of tests for the submit ioctl.
> > >
> > > Signed-off-by: Rob Clark <robdclark@chromium.org>
> > > ---
> > >  tests/meson.build  |   1 +
> > >  tests/msm_submit.c | 186 +++++++++++++++++++++++++++++++++++++++++++++
> > >  2 files changed, 187 insertions(+)
> > >  create mode 100644 tests/msm_submit.c
> > >
> > > diff --git a/tests/meson.build b/tests/meson.build
> > > index 1bdfddbb..ff7c709a 100644
> > > --- a/tests/meson.build
> > > +++ b/tests/meson.build
> > > @@ -107,6 +107,7 @@ test_progs = [
> > >       'vc4_wait_seqno',
> > >       'vgem_basic',
> > >       'vgem_slow',
> > > +     'msm_submit',
> > >  ]
> > >
> > >  i915_progs = [
> > > diff --git a/tests/msm_submit.c b/tests/msm_submit.c
> > > new file mode 100644
> > > index 00000000..da93c574
> > > --- /dev/null
> > > +++ b/tests/msm_submit.c
> > > @@ -0,0 +1,186 @@
> > > +/*
> > > + * Copyright © 2021 Google, Inc.
> > > + *
> > > + * 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"
> > > +#include "igt_msm.h"
> > > +
> > > +igt_main
> > > +{
> > > +     struct msm_device *dev;
> > > +     struct msm_pipe *pipe;
> > > +     struct msm_bo *a, *b;
> > > +
> > > +     igt_fixture {
> > > +             dev = igt_msm_dev_open();
> >
> > What I replied on 2/3 applies here: If opening the device fails,
> > igt_msm_dev_open() does not return and 'dev' is left uninitialized,
> > those other pointers likewise. Leading to...
> >
> > > +             pipe = igt_msm_pipe_open(dev, 0);
> > > +             a = igt_msm_bo_new(dev, 0x1000, MSM_BO_WC);
> > > +             b = igt_msm_bo_new(dev, 0x1000, MSM_BO_WC);
> > > +     }
> > > +
> > > +     igt_subtest("empty-submit") {
> > > +             struct drm_msm_gem_submit req = {
> > > +                             .flags   = pipe->pipe,
> > > +                             .queueid = pipe->submitqueue_id,
> > > +             };
> > > +             do_ioctl(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req);
> > > +     }
> > > +
> > > +     igt_subtest("invalid-queue-submit") {
> > > +             struct drm_msm_gem_submit req = {
> > > +                             .flags   = pipe->pipe,
> > > +                             .queueid = 0x1234,
> > > +             };
> > > +             do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, ENOENT);
> > > +     }
> > > +
> > > +     igt_subtest("invalid-flags-submit") {
> > > +             struct drm_msm_gem_submit req = {
> > > +                             .flags   = 0x1234,
> > > +                             .queueid = pipe->submitqueue_id,
> > > +             };
> > > +             do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> > > +     }
> > > +
> > > +     igt_subtest("invalid-in-fence-submit") {
> > > +             struct drm_msm_gem_submit req = {
> > > +                             .flags   = pipe->pipe | MSM_SUBMIT_FENCE_FD_IN,
> > > +                             .queueid = pipe->submitqueue_id,
> > > +                             .fence_fd = dev->fd,  /* This is not a fence fd! */
> > > +             };
> > > +             do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> > > +     }
> > > +
> > > +     igt_subtest("invalid-duplicate-bo-submit") {
> > > +             struct drm_msm_gem_submit_bo bos[] = {
> > > +                     [0] = {
> > > +                             .handle     = a->handle,
> > > +                             .flags      = MSM_SUBMIT_BO_READ,
> > > +                     },
> > > +                     [1] = {
> > > +                             .handle     = b->handle,
> > > +                             .flags      = MSM_SUBMIT_BO_READ,
> > > +                     },
> > > +                     [2] = {
> > > +                             /* this is invalid.. there should not be two entries
> > > +                              * for the same bo, instead a single entry w/ all
> > > +                              * usage flags OR'd together should be used.  Kernel
> > > +                              * should catch this, and return an error code after
> > > +                              * cleaning up properly (not leaking any bo's)
> > > +                              */
> > > +                             .handle     = a->handle,
> > > +                             .flags      = MSM_SUBMIT_BO_WRITE,
> > > +                     },
> > > +             };
> > > +             struct drm_msm_gem_submit req = {
> > > +                             .flags   = pipe->pipe,
> > > +                             .queueid = pipe->submitqueue_id,
> > > +                             .nr_bos  = ARRAY_SIZE(bos),
> > > +                             .bos     = VOID2U64(bos),
> > > +             };
> > > +             do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> > > +     }
> > > +
> > > +     igt_subtest("invalid-cmd-idx-submit") {
> > > +             struct drm_msm_gem_submit_cmd cmds[] = {
> > > +                     [0] = {
> > > +                             .type       = MSM_SUBMIT_CMD_BUF,
> > > +                             .submit_idx = 0,      /* bos[0] does not exist */
> > > +                             .size       = 4 * 4,  /* 4 dwords in cmdbuf */
> > > +                     },
> > > +             };
> > > +             struct drm_msm_gem_submit req = {
> > > +                             .flags   = pipe->pipe,
> > > +                             .queueid = pipe->submitqueue_id,
> > > +                             .nr_cmds    = ARRAY_SIZE(cmds),
> > > +                             .cmds       = VOID2U64(cmds),
> > > +             };
> > > +             do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> > > +     }
> > > +
> > > +     igt_subtest("invalid-cmd-type-submit") {
> > > +             struct drm_msm_gem_submit_bo bos[] = {
> > > +                     [0] = {
> > > +                             .handle     = a->handle,
> > > +                             .flags      = MSM_SUBMIT_BO_READ,
> > > +                     },
> > > +             };
> > > +             struct drm_msm_gem_submit_cmd cmds[] = {
> > > +                     [0] = {
> > > +                             .type       = 0x1234,
> > > +                             .submit_idx = 0,
> > > +                             .size       = 4 * 4,  /* 4 dwords in cmdbuf */
> > > +                     },
> > > +             };
> > > +             struct drm_msm_gem_submit req = {
> > > +                             .flags   = pipe->pipe,
> > > +                             .queueid = pipe->submitqueue_id,
> > > +                             .nr_cmds    = ARRAY_SIZE(cmds),
> > > +                             .cmds       = VOID2U64(cmds),
> > > +                             .nr_bos  = ARRAY_SIZE(bos),
> > > +                             .bos     = VOID2U64(bos),
> > > +             };
> > > +             do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> > > +     }
> > > +
> > > +     igt_subtest("valid-submit") {
> > > +             struct drm_msm_gem_submit_bo bos[] = {
> > > +                     [0] = {
> > > +                             .handle     = a->handle,
> > > +                             .flags      = MSM_SUBMIT_BO_READ,
> > > +                     },
> > > +             };
> > > +             struct drm_msm_gem_submit_cmd cmds[] = {
> > > +                     [0] = {
> > > +                             .type       = MSM_SUBMIT_CMD_BUF,
> > > +                             .submit_idx = 0,
> > > +                             .size       = 4 * 4,  /* 4 dwords in cmdbuf */
> > > +                     },
> > > +             };
> > > +             struct drm_msm_gem_submit req = {
> > > +                             .flags   = pipe->pipe,
> > > +                             .queueid = pipe->submitqueue_id,
> > > +                             .nr_cmds    = ARRAY_SIZE(cmds),
> > > +                             .cmds       = VOID2U64(cmds),
> > > +                             .nr_bos  = ARRAY_SIZE(bos),
> > > +                             .bos     = VOID2U64(bos),
> > > +             };
> > > +             uint32_t *cmdstream = igt_msm_bo_map(a);
> > > +             if (dev->gen >= 5) {
> > > +                     *(cmdstream++) = pm4_pkt7_hdr(CP_NOP, 3);
> > > +             } else {
> > > +                     *(cmdstream++) = pm4_pkt3_hdr(CP_NOP, 3);
> > > +             }
> > > +             *(cmdstream++) = 0;
> > > +             *(cmdstream++) = 0;
> > > +             *(cmdstream++) = 0;
> > > +
> > > +             do_ioctl(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req);
> > > +     }
> > > +
> > > +     igt_fixture {
> > > +             igt_msm_bo_free(a);
> > > +             igt_msm_bo_free(b);
> > > +             igt_msm_pipe_close(pipe);
> > > +             igt_msm_dev_close(dev);
> >
> > ... crashes in here.
> >
> 
> I did test this on intel as well, and it skips properly.. I think the
> setjmp/longjmp magic just bails completely out so we never try to run
> the cleanup?

Ah, indeed, skip_henceforth prevents entering the latter fixture.

It still looks scary, can I implore to add some defensive layers with
NULL-inits and handling of NULLs in the functions? It might not crash
today...
Petri Latvala Aug. 27, 2021, 6:59 a.m. UTC | #4
On Wed, Aug 25, 2021 at 04:31:39PM -0700, Rob Clark wrote:
> From: Rob Clark <robdclark@chromium.org>
> 
> Add an initial set of tests for the submit ioctl.
> 
> Signed-off-by: Rob Clark <robdclark@chromium.org>
> ---
>  tests/meson.build  |   1 +
>  tests/msm_submit.c | 186 +++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 187 insertions(+)
>  create mode 100644 tests/msm_submit.c
> 
> diff --git a/tests/meson.build b/tests/meson.build
> index 1bdfddbb..ff7c709a 100644
> --- a/tests/meson.build
> +++ b/tests/meson.build
> @@ -107,6 +107,7 @@ test_progs = [
>  	'vc4_wait_seqno',
>  	'vgem_basic',
>  	'vgem_slow',
> +	'msm_submit',
>  ]
>  
>  i915_progs = [
> diff --git a/tests/msm_submit.c b/tests/msm_submit.c
> new file mode 100644
> index 00000000..da93c574
> --- /dev/null
> +++ b/tests/msm_submit.c
> @@ -0,0 +1,186 @@
> +/*
> + * Copyright © 2021 Google, Inc.
> + *
> + * 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"
> +#include "igt_msm.h"
> +
> +igt_main
> +{
> +	struct msm_device *dev;
> +	struct msm_pipe *pipe;
> +	struct msm_bo *a, *b;
> +
> +	igt_fixture {
> +		dev = igt_msm_dev_open();
> +		pipe = igt_msm_pipe_open(dev, 0);
> +		a = igt_msm_bo_new(dev, 0x1000, MSM_BO_WC);
> +		b = igt_msm_bo_new(dev, 0x1000, MSM_BO_WC);
> +	}
> +
> +	igt_subtest("empty-submit") {
> +		struct drm_msm_gem_submit req = {
> +				.flags   = pipe->pipe,
> +				.queueid = pipe->submitqueue_id,
> +		};
> +		do_ioctl(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req);
> +	}
> +
> +	igt_subtest("invalid-queue-submit") {
> +		struct drm_msm_gem_submit req = {
> +				.flags   = pipe->pipe,
> +				.queueid = 0x1234,
> +		};
> +		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, ENOENT);
> +	}
> +
> +	igt_subtest("invalid-flags-submit") {
> +		struct drm_msm_gem_submit req = {
> +				.flags   = 0x1234,
> +				.queueid = pipe->submitqueue_id,
> +		};
> +		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> +	}
> +
> +	igt_subtest("invalid-in-fence-submit") {
> +		struct drm_msm_gem_submit req = {
> +				.flags   = pipe->pipe | MSM_SUBMIT_FENCE_FD_IN,
> +				.queueid = pipe->submitqueue_id,
> +				.fence_fd = dev->fd,  /* This is not a fence fd! */
> +		};
> +		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> +	}
> +
> +	igt_subtest("invalid-duplicate-bo-submit") {
> +		struct drm_msm_gem_submit_bo bos[] = {
> +			[0] = {
> +				.handle     = a->handle,
> +				.flags      = MSM_SUBMIT_BO_READ,
> +			},
> +			[1] = {
> +				.handle     = b->handle,
> +				.flags      = MSM_SUBMIT_BO_READ,
> +			},
> +			[2] = {
> +				/* this is invalid.. there should not be two entries
> +				 * for the same bo, instead a single entry w/ all
> +				 * usage flags OR'd together should be used.  Kernel
> +				 * should catch this, and return an error code after
> +				 * cleaning up properly (not leaking any bo's)
> +				 */
> +				.handle     = a->handle,
> +				.flags      = MSM_SUBMIT_BO_WRITE,
> +			},
> +		};
> +		struct drm_msm_gem_submit req = {
> +				.flags   = pipe->pipe,
> +				.queueid = pipe->submitqueue_id,
> +				.nr_bos  = ARRAY_SIZE(bos),
> +				.bos     = VOID2U64(bos),
> +		};
> +		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> +	}
> +
> +	igt_subtest("invalid-cmd-idx-submit") {
> +		struct drm_msm_gem_submit_cmd cmds[] = {
> +			[0] = {
> +				.type       = MSM_SUBMIT_CMD_BUF,
> +				.submit_idx = 0,      /* bos[0] does not exist */
> +				.size       = 4 * 4,  /* 4 dwords in cmdbuf */
> +			},
> +		};
> +		struct drm_msm_gem_submit req = {
> +				.flags   = pipe->pipe,
> +				.queueid = pipe->submitqueue_id,
> +				.nr_cmds    = ARRAY_SIZE(cmds),
> +				.cmds       = VOID2U64(cmds),
> +		};
> +		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> +	}
> +
> +	igt_subtest("invalid-cmd-type-submit") {
> +		struct drm_msm_gem_submit_bo bos[] = {
> +			[0] = {
> +				.handle     = a->handle,
> +				.flags      = MSM_SUBMIT_BO_READ,
> +			},
> +		};
> +		struct drm_msm_gem_submit_cmd cmds[] = {
> +			[0] = {
> +				.type       = 0x1234,
> +				.submit_idx = 0,
> +				.size       = 4 * 4,  /* 4 dwords in cmdbuf */
> +			},
> +		};
> +		struct drm_msm_gem_submit req = {
> +				.flags   = pipe->pipe,
> +				.queueid = pipe->submitqueue_id,
> +				.nr_cmds    = ARRAY_SIZE(cmds),
> +				.cmds       = VOID2U64(cmds),
> +				.nr_bos  = ARRAY_SIZE(bos),
> +				.bos     = VOID2U64(bos),
> +		};
> +		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
> +	}
> +
> +	igt_subtest("valid-submit") {
> +		struct drm_msm_gem_submit_bo bos[] = {
> +			[0] = {
> +				.handle     = a->handle,
> +				.flags      = MSM_SUBMIT_BO_READ,
> +			},
> +		};
> +		struct drm_msm_gem_submit_cmd cmds[] = {
> +			[0] = {
> +				.type       = MSM_SUBMIT_CMD_BUF,
> +				.submit_idx = 0,
> +				.size       = 4 * 4,  /* 4 dwords in cmdbuf */
> +			},
> +		};
> +		struct drm_msm_gem_submit req = {
> +				.flags   = pipe->pipe,
> +				.queueid = pipe->submitqueue_id,
> +				.nr_cmds    = ARRAY_SIZE(cmds),
> +				.cmds       = VOID2U64(cmds),
> +				.nr_bos  = ARRAY_SIZE(bos),
> +				.bos     = VOID2U64(bos),
> +		};
> +		uint32_t *cmdstream = igt_msm_bo_map(a);
> +		if (dev->gen >= 5) {
> +			*(cmdstream++) = pm4_pkt7_hdr(CP_NOP, 3);
> +		} else {
> +			*(cmdstream++) = pm4_pkt3_hdr(CP_NOP, 3);
> +		}
> +		*(cmdstream++) = 0;
> +		*(cmdstream++) = 0;
> +		*(cmdstream++) = 0;
> +
> +		do_ioctl(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req);
> +	}

Add igt_describe()s for all subtests.
diff mbox series

Patch

diff --git a/tests/meson.build b/tests/meson.build
index 1bdfddbb..ff7c709a 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -107,6 +107,7 @@  test_progs = [
 	'vc4_wait_seqno',
 	'vgem_basic',
 	'vgem_slow',
+	'msm_submit',
 ]
 
 i915_progs = [
diff --git a/tests/msm_submit.c b/tests/msm_submit.c
new file mode 100644
index 00000000..da93c574
--- /dev/null
+++ b/tests/msm_submit.c
@@ -0,0 +1,186 @@ 
+/*
+ * Copyright © 2021 Google, Inc.
+ *
+ * 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"
+#include "igt_msm.h"
+
+igt_main
+{
+	struct msm_device *dev;
+	struct msm_pipe *pipe;
+	struct msm_bo *a, *b;
+
+	igt_fixture {
+		dev = igt_msm_dev_open();
+		pipe = igt_msm_pipe_open(dev, 0);
+		a = igt_msm_bo_new(dev, 0x1000, MSM_BO_WC);
+		b = igt_msm_bo_new(dev, 0x1000, MSM_BO_WC);
+	}
+
+	igt_subtest("empty-submit") {
+		struct drm_msm_gem_submit req = {
+				.flags   = pipe->pipe,
+				.queueid = pipe->submitqueue_id,
+		};
+		do_ioctl(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req);
+	}
+
+	igt_subtest("invalid-queue-submit") {
+		struct drm_msm_gem_submit req = {
+				.flags   = pipe->pipe,
+				.queueid = 0x1234,
+		};
+		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, ENOENT);
+	}
+
+	igt_subtest("invalid-flags-submit") {
+		struct drm_msm_gem_submit req = {
+				.flags   = 0x1234,
+				.queueid = pipe->submitqueue_id,
+		};
+		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
+	}
+
+	igt_subtest("invalid-in-fence-submit") {
+		struct drm_msm_gem_submit req = {
+				.flags   = pipe->pipe | MSM_SUBMIT_FENCE_FD_IN,
+				.queueid = pipe->submitqueue_id,
+				.fence_fd = dev->fd,  /* This is not a fence fd! */
+		};
+		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
+	}
+
+	igt_subtest("invalid-duplicate-bo-submit") {
+		struct drm_msm_gem_submit_bo bos[] = {
+			[0] = {
+				.handle     = a->handle,
+				.flags      = MSM_SUBMIT_BO_READ,
+			},
+			[1] = {
+				.handle     = b->handle,
+				.flags      = MSM_SUBMIT_BO_READ,
+			},
+			[2] = {
+				/* this is invalid.. there should not be two entries
+				 * for the same bo, instead a single entry w/ all
+				 * usage flags OR'd together should be used.  Kernel
+				 * should catch this, and return an error code after
+				 * cleaning up properly (not leaking any bo's)
+				 */
+				.handle     = a->handle,
+				.flags      = MSM_SUBMIT_BO_WRITE,
+			},
+		};
+		struct drm_msm_gem_submit req = {
+				.flags   = pipe->pipe,
+				.queueid = pipe->submitqueue_id,
+				.nr_bos  = ARRAY_SIZE(bos),
+				.bos     = VOID2U64(bos),
+		};
+		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
+	}
+
+	igt_subtest("invalid-cmd-idx-submit") {
+		struct drm_msm_gem_submit_cmd cmds[] = {
+			[0] = {
+				.type       = MSM_SUBMIT_CMD_BUF,
+				.submit_idx = 0,      /* bos[0] does not exist */
+				.size       = 4 * 4,  /* 4 dwords in cmdbuf */
+			},
+		};
+		struct drm_msm_gem_submit req = {
+				.flags   = pipe->pipe,
+				.queueid = pipe->submitqueue_id,
+				.nr_cmds    = ARRAY_SIZE(cmds),
+				.cmds       = VOID2U64(cmds),
+		};
+		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
+	}
+
+	igt_subtest("invalid-cmd-type-submit") {
+		struct drm_msm_gem_submit_bo bos[] = {
+			[0] = {
+				.handle     = a->handle,
+				.flags      = MSM_SUBMIT_BO_READ,
+			},
+		};
+		struct drm_msm_gem_submit_cmd cmds[] = {
+			[0] = {
+				.type       = 0x1234,
+				.submit_idx = 0,
+				.size       = 4 * 4,  /* 4 dwords in cmdbuf */
+			},
+		};
+		struct drm_msm_gem_submit req = {
+				.flags   = pipe->pipe,
+				.queueid = pipe->submitqueue_id,
+				.nr_cmds    = ARRAY_SIZE(cmds),
+				.cmds       = VOID2U64(cmds),
+				.nr_bos  = ARRAY_SIZE(bos),
+				.bos     = VOID2U64(bos),
+		};
+		do_ioctl_err(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req, EINVAL);
+	}
+
+	igt_subtest("valid-submit") {
+		struct drm_msm_gem_submit_bo bos[] = {
+			[0] = {
+				.handle     = a->handle,
+				.flags      = MSM_SUBMIT_BO_READ,
+			},
+		};
+		struct drm_msm_gem_submit_cmd cmds[] = {
+			[0] = {
+				.type       = MSM_SUBMIT_CMD_BUF,
+				.submit_idx = 0,
+				.size       = 4 * 4,  /* 4 dwords in cmdbuf */
+			},
+		};
+		struct drm_msm_gem_submit req = {
+				.flags   = pipe->pipe,
+				.queueid = pipe->submitqueue_id,
+				.nr_cmds    = ARRAY_SIZE(cmds),
+				.cmds       = VOID2U64(cmds),
+				.nr_bos  = ARRAY_SIZE(bos),
+				.bos     = VOID2U64(bos),
+		};
+		uint32_t *cmdstream = igt_msm_bo_map(a);
+		if (dev->gen >= 5) {
+			*(cmdstream++) = pm4_pkt7_hdr(CP_NOP, 3);
+		} else {
+			*(cmdstream++) = pm4_pkt3_hdr(CP_NOP, 3);
+		}
+		*(cmdstream++) = 0;
+		*(cmdstream++) = 0;
+		*(cmdstream++) = 0;
+
+		do_ioctl(dev->fd, DRM_IOCTL_MSM_GEM_SUBMIT, &req);
+	}
+
+	igt_fixture {
+		igt_msm_bo_free(a);
+		igt_msm_bo_free(b);
+		igt_msm_pipe_close(pipe);
+		igt_msm_dev_close(dev);
+	}
+}