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tests: separate testcases in gem_bad_length

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Creating a zero-length bo should fail, so check that. Still run
the minimal batchbuffer, but without the zero-length reloc.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2011-09-14 14:48:45 +02:00
parent 2c380c2eac
commit d6ac159ba1
1 changed files with 27 additions and 16 deletions
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43
tests/gem_bad_length.c
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@ -42,7 +42,14 @@
#define MI_BATCH_BUFFER_END (0xA<<23) #define MI_BATCH_BUFFER_END (0xA<<23)
static uint32_t gem_create(int fd, int size) /*
* Testcase: Minmal bo_create and batchbuffer exec
*
* Originally this caught an kernel oops due to the unchecked assumption that
* objects have size > 0.
*/
static uint32_t gem_create(int fd, int size, int *retval)
{ {
struct drm_i915_gem_create create; struct drm_i915_gem_create create;
int ret; int ret;
@ -50,7 +57,9 @@ static uint32_t gem_create(int fd, int size)
create.handle = 0; create.handle = 0;
create.size = (size + 4095) & -4096; create.size = (size + 4095) & -4096;
ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create); ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create);
assert(ret == 0); assert(retval || ret == 0);
if (retval)
*retval = errno;
return create.handle; return create.handle;
} }
@ -86,17 +95,27 @@ static void gem_close(int fd, uint32_t handle)
assert(ret == 0); assert(ret == 0);
} }
static void create0(int fd)
{
int retval = 0;
printf("trying to create a zero-length gem object\n");
gem_create(fd, 0, &retval);
assert(retval == EINVAL);
}
static void exec0(int fd) static void exec0(int fd)
{ {
struct drm_i915_gem_execbuffer2 execbuf; struct drm_i915_gem_execbuffer2 execbuf;
struct drm_i915_gem_exec_object2 exec[2]; struct drm_i915_gem_exec_object2 exec[1];
uint32_t buf[2] = { MI_BATCH_BUFFER_END, 0 }; uint32_t buf[2] = { MI_BATCH_BUFFER_END, 0 };
/* Just try executing with a zero-length bo. /* Just try executing with a zero-length bo.
* We expect the kernel to either accept the nop batch, or reject it * We expect the kernel to either accept the nop batch, or reject it
* for the zero-length buffer, but never crash. * for the zero-length buffer, but never crash.
*/ */
exec[0].handle = gem_create(fd, 0);
exec[0].handle = gem_create(fd, 4096, NULL);
gem_write(fd, exec[0].handle, 0, buf, sizeof(buf));
exec[0].relocation_count = 0; exec[0].relocation_count = 0;
exec[0].relocs_ptr = 0; exec[0].relocs_ptr = 0;
exec[0].alignment = 0; exec[0].alignment = 0;
@ -105,18 +124,8 @@ static void exec0(int fd)
exec[0].rsvd1 = 0; exec[0].rsvd1 = 0;
exec[0].rsvd2 = 0; exec[0].rsvd2 = 0;
exec[1].handle = gem_create(fd, 4096);
gem_write(fd, exec[1].handle, 0, buf, sizeof(buf));
exec[1].relocation_count = 0;
exec[1].relocs_ptr = 0;
exec[1].alignment = 0;
exec[1].offset = 0;
exec[1].flags = 0;
exec[1].rsvd1 = 0;
exec[1].rsvd2 = 0;
execbuf.buffers_ptr = (uintptr_t)exec; execbuf.buffers_ptr = (uintptr_t)exec;
execbuf.buffer_count = 2; execbuf.buffer_count = 1;
execbuf.batch_start_offset = 0; execbuf.batch_start_offset = 0;
execbuf.batch_len = sizeof(buf); execbuf.batch_len = sizeof(buf);
execbuf.cliprects_ptr = 0; execbuf.cliprects_ptr = 0;
@ -127,10 +136,10 @@ static void exec0(int fd)
execbuf.rsvd1 = 0; execbuf.rsvd1 = 0;
execbuf.rsvd2 = 0; execbuf.rsvd2 = 0;
printf("trying to run an empty batchbuffer\n");
gem_exec(fd, &execbuf); gem_exec(fd, &execbuf);
gem_close(fd, exec[0].handle); gem_close(fd, exec[0].handle);
gem_close(fd, exec[1].handle);
} }
int main(int argc, char **argv) int main(int argc, char **argv)
@ -139,6 +148,8 @@ int main(int argc, char **argv)
fd = drm_open_any(); fd = drm_open_any();
create0(fd);
exec0(fd); exec0(fd);
close(fd); close(fd);