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gem_bad_reloc: Add subtest for LUT-based execbuffers

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2014-05-15 13:10:21 +01:00
parent daa9e3d80a
commit efd5a571f4
1 changed files with 15 additions and 13 deletions
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28
tests/gem_bad_reloc.c
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@ -41,27 +41,31 @@
#include "drmtest.h"
#include "intel_io.h"
#define USE_LUT (1 << 12)
/* Simulates SNA behaviour using negative self-relocations for
* STATE_BASE_ADDRESS command packets. If they wrap around (to values greater
* than the total size of the GTT), the GPU will hang.
* See https://bugs.freedesktop.org/show_bug.cgi?id=78533
*/
static int negative_reloc(int fd, uint32_t handle)
static int negative_reloc(int fd, unsigned flags)
{
struct drm_i915_gem_execbuffer2 execbuf;
struct drm_i915_gem_exec_object2 gem_exec;
struct drm_i915_gem_relocation_entry gem_reloc[1000];
uint64_t gtt_max = gem_aperture_size(fd);
uint32_t buf[1024];
uint32_t buf[1024] = {MI_BATCH_BUFFER_END};
int i;
memset(&gem_exec, 0, sizeof(gem_exec));
gem_exec.handle = handle;
gem_exec.handle = gem_create(fd, 4096);
gem_write(fd, gem_exec.handle, 0, buf, 8);
memset(&execbuf, 0, sizeof(execbuf));
execbuf.buffers_ptr = (uintptr_t)&gem_exec;
execbuf.buffer_count = 1;
execbuf.batch_len = 8;
execbuf.flags = flags & USE_LUT;
do_or_die(drmIoctl(fd,
DRM_IOCTL_I915_GEM_EXECBUFFER2,
@ -74,7 +78,7 @@ static int negative_reloc(int fd, uint32_t handle)
for (i = 0; i < sizeof(gem_reloc)/sizeof(gem_reloc[0]); i++) {
gem_reloc[i].offset = 8 + 4*i;
gem_reloc[i].delta = -16*1024*i;
gem_reloc[i].target_handle = handle;
gem_reloc[i].target_handle = flags & USE_LUT ? 0 : gem_exec.handle;
gem_reloc[i].read_domains = I915_GEM_DOMAIN_COMMAND;
}
@ -85,32 +89,30 @@ static int negative_reloc(int fd, uint32_t handle)
DRM_IOCTL_I915_GEM_EXECBUFFER2,
&execbuf));
gem_read(fd, handle, 0, buf, sizeof(buf));
gem_read(fd, gem_exec.handle, 0, buf, sizeof(buf));
gem_close(fd, gem_exec.handle);
for (i = 0; i < sizeof(gem_reloc)/sizeof(gem_reloc[0]); i++)
igt_assert(buf[2 + i] < gtt_max);
return 0;
}
uint32_t batch[2] = {MI_BATCH_BUFFER_END};
uint32_t handle;
int fd;
igt_main
{
igt_fixture {
fd = drm_open_any();
handle = gem_create(fd, 4096);
gem_write(fd, handle, 0, batch, sizeof(batch));
}
igt_subtest("negative-reloc")
negative_reloc(fd, handle);
negative_reloc(fd, 0);
igt_subtest("negative-reloc-lut")
negative_reloc(fd, USE_LUT);
igt_fixture {
gem_close(fd, handle);
close(fd);
}
}