Re: [PATCH 1/2] tests: Exercise new API for using a LUT with the execbuffer

[Daniel Vetter <daniel@ffwll.ch>]

On Wed, Dec 05, 2012 at 02:02:21PM +0000, Chris Wilson wrote:
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
> ---
>  tests/Makefile.am      |    1 +
>  tests/gem_lut_handle.c |  109 ++++++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 110 insertions(+)
>  create mode 100644 tests/gem_lut_handle.c
> 
> diff --git a/tests/Makefile.am b/tests/Makefile.am
> index 18f7148..16d187f 100644
> --- a/tests/Makefile.am
> +++ b/tests/Makefile.am
> @@ -37,6 +37,7 @@ TESTS_progs = \
>  	gem_exec_blt \
>  	gem_exec_faulting_reloc \
>  	gem_readwrite \
> +	gem_lut_handle \
>  	gem_mmap \
>  	gem_mmap_offset_exhaustion \
>  	gem_hangcheck_forcewake \
> diff --git a/tests/gem_lut_handle.c b/tests/gem_lut_handle.c
> new file mode 100644
> index 0000000..64676f2
> --- /dev/null
> +++ b/tests/gem_lut_handle.c
> @@ -0,0 +1,109 @@
> +/*
> + * Copyright © 20012 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.
> + *
> + * Authors:
> + *    Chris Wilson <chris@chris-wilson.co.uk>
> + *
> + */
> +
> +/* Exercises the basic execbuffer using theh andle LUT interface */
> +
> +#include <stdlib.h>
> +#include <stdio.h>
> +#include <string.h>
> +#include <assert.h>
> +#include <fcntl.h>
> +#include <inttypes.h>
> +#include <errno.h>
> +#include <sys/stat.h>
> +#include <sys/time.h>
> +#include "drm.h"
> +#include "i915_drm.h"
> +#include "drmtest.h"
> +
> +#define MI_BATCH_BUFFER_END	(0xA<<23)
> +#define BATCH_SIZE		(1024*1024)
> +
> +#define LOCAL_I915_EXEC_HANDLE_LUT (1<<11)
> +
> +#define USE_LUT 0x1
> +#define BROKEN 0x2
> +
> +static int exec(int fd, uint32_t handle, unsigned int flags)
> +{
> +	struct drm_i915_gem_execbuffer2 execbuf;
> +	struct drm_i915_gem_exec_object2 gem_exec[1];
> +	struct drm_i915_gem_relocation_entry gem_reloc[1];
> +
> +	gem_reloc[0].offset = 1024;
> +	gem_reloc[0].delta = 0;
> +	gem_reloc[0].target_handle =
> +		!!(flags & USE_LUT) ^ !!(flags & BROKEN) ? 0 : handle;

For added fun, can you pls add a few more USE_LUT cases with funny indexes
like -1, num_exec_bos, num_exec_bos + 1?
-Daniel

> +	gem_reloc[0].read_domains = I915_GEM_DOMAIN_RENDER;
> +	gem_reloc[0].write_domain = 0;
> +	gem_reloc[0].presumed_offset = 0;
> +
> +	gem_exec[0].handle = handle;
> +	gem_exec[0].relocation_count = 1;
> +	gem_exec[0].relocs_ptr = (uintptr_t) gem_reloc;
> +	gem_exec[0].alignment = 0;
> +	gem_exec[0].offset = 0;
> +	gem_exec[0].flags = 0;
> +	gem_exec[0].rsvd1 = 0;
> +	gem_exec[0].rsvd2 = 0;
> +
> +	execbuf.buffers_ptr = (uintptr_t)gem_exec;
> +	execbuf.buffer_count = 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 = flags & USE_LUT ? LOCAL_I915_EXEC_HANDLE_LUT : 0;
> +	i915_execbuffer2_set_context_id(execbuf, 0);
> +	execbuf.rsvd2 = 0;
> +
> +	return drmIoctl(fd,
> +			DRM_IOCTL_I915_GEM_EXECBUFFER2,
> +			&execbuf);
> +}
> +
> +int main(int argc, char **argv)
> +{
> +	uint32_t batch[2] = {MI_BATCH_BUFFER_END};
> +	uint32_t handle;
> +	int fd;
> +
> +	fd = drm_open_any();
> +
> +	handle = gem_create(fd, 4096);
> +	gem_write(fd, handle, 0, batch, sizeof(batch));
> +
> +	do_or_die(exec(fd, handle, 0));
> +	do_or_die(exec(fd, handle, USE_LUT));
> +
> +	assert(exec(fd, handle, BROKEN) == -1 && errno == ENOENT);
> +	assert(exec(fd, handle, USE_LUT | BROKEN) == -1 && errno == ENOENT);
> +
> +	return 0;
> +}
> -- 
> 1.7.10.4
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch