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tests/gem_fenced_exec_thrash: Test with > max fences

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Make sure the kernel returns EDEADLK when the number of fences is
exceeded for gen2-3. For gen4+ the test makes sure the kernel ignores
the EXEC_OBJECT_NEEDS_FENCE flag.

Note that I changed the code not to round the num_fences to an even
number. Not sure why that was there, and if there's a reason for it,
we need to add it back.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2013-04-11 20:43:40 +03:00 committed by Daniel Vetter
parent a7ca33b673
commit 2fe3f76c25
1 changed files with 25 additions and 13 deletions
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38
tests/gem_fenced_exec_thrash.c
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@ -38,6 +38,7 @@
#include <i915_drm.h>
#include "drmtest.h"
#include "intel_gpu_tools.h"
#define WIDTH 1024
#define HEIGHT 1024
@ -47,8 +48,6 @@
#define MAX_FENCES 32
#define MI_BATCH_BUFFER_END (0xA<<23)
/*
* Testcase: execbuf fence accounting
*
@ -95,7 +94,7 @@ static int get_num_fences(int fd)
printf ("total %d fences\n", val);
assert(val > 4);
return val - 2;
return val;
}
static void fill_reloc(struct drm_i915_gem_relocation_entry *reloc, uint32_t handle)
@ -106,23 +105,19 @@ static void fill_reloc(struct drm_i915_gem_relocation_entry *reloc, uint32_t han
reloc->write_domain = 0;
}
int
main(int argc, char **argv)
static void run_test(int fd, int num_fences, int expected_errno)
{
struct drm_i915_gem_execbuffer2 execbuf[2];
struct drm_i915_gem_exec_object2 exec[2][2*MAX_FENCES+1];
struct drm_i915_gem_relocation_entry reloc[2*MAX_FENCES];
struct drm_i915_gem_exec_object2 exec[2][2*MAX_FENCES+3];
struct drm_i915_gem_relocation_entry reloc[2*MAX_FENCES+2];
int fd = drm_open_any();
int i, n, num_fences;
int i, n;
int loop = 1000;
memset(execbuf, 0, sizeof(execbuf));
memset(exec, 0, sizeof(exec));
memset(reloc, 0, sizeof(reloc));
num_fences = get_num_fences(fd) & ~1;
assert(num_fences <= MAX_FENCES);
for (n = 0; n < 2*num_fences; n++) {
uint32_t handle = tiled_bo_create(fd);
exec[1][2*num_fences - n-1].handle = exec[0][n].handle = handle;
@ -148,13 +143,30 @@ main(int argc, char **argv)
ret = drmIoctl(fd,
DRM_IOCTL_I915_GEM_EXECBUFFER2,
&execbuf[0]);
assert(ret == 0);
assert(expected_errno ?
ret < 0 && errno == expected_errno :
ret == 0);
ret = drmIoctl(fd,
DRM_IOCTL_I915_GEM_EXECBUFFER2,
&execbuf[1]);
assert(ret == 0);
assert(expected_errno ?
ret < 0 && errno == expected_errno :
ret == 0);
} while (--loop);
}
int
main(int argc, char **argv)
{
int fd = drm_open_any();
int num_fences = get_num_fences(fd);
uint32_t devid = intel_get_drm_devid(fd);
assert(num_fences <= MAX_FENCES);
run_test(fd, num_fences - 2, 0);
run_test(fd, num_fences + 1, intel_gen(devid) >= 4 ? 0 : EDEADLK);
close(fd);