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igt/gem_mmap_wc: Add the invalid flags subtest

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A new subtest added to validate the new version of gem_mmap ioctl,
for creating the wc mappings, on yet to be supported flags.

v2: Removed the flags checking for older kernels (Daniel)

Signed-off-by: Akash Goel <akash.goel@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Akash Goel 2015-01-02 16:33:34 +05:30 committed by Daniel Vetter
parent f2a045f851
commit f3e1a3d9f8
1 changed files with 52 additions and 0 deletions
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52
tests/gem_mmap_wc.c
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@ -41,6 +41,17 @@
#include "drmtest.h"
#include "igt_debugfs.h"
struct local_i915_gem_mmap_v2 {
uint32_t handle;
uint32_t pad;
uint64_t offset;
uint64_t size;
uint64_t addr_ptr;
uint64_t flags;
#define I915_MMAP_WC 0x1
};
#define LOCAL_IOCTL_I915_GEM_MMAP_v2 DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MMAP, struct local_i915_gem_mmap_v2)
static int OBJECT_SIZE = 16*1024*1024;
static void set_domain(int fd, uint32_t handle)
@ -75,6 +86,45 @@ create_pointer(int fd)
return ptr;
}
static void
test_invalid_flags(int fd)
{
struct drm_i915_getparam gp;
struct local_i915_gem_mmap_v2 arg;
uint64_t flag = I915_MMAP_WC;
int val = -1;
memset(&arg, 0, sizeof(arg));
arg.handle = gem_create(fd, 4096);
arg.offset = 0;
arg.size = 4096;
memset(&gp, 0, sizeof(gp));
gp.param = 30; /* MMAP_VERSION */
gp.value = &val;
/* Do we have the new mmap_ioctl? */
do_ioctl(fd, DRM_IOCTL_I915_GETPARAM, &gp);
if (val >= 1) {
/*
* Only MMAP_WC flag is supported in version 1, so any other
* flag should be rejected.
*/
flag <<= 1;
while (flag) {
arg.flags = flag;
igt_assert(drmIoctl(fd,
LOCAL_IOCTL_I915_GEM_MMAP_v2,
&arg) == -1);
igt_assert_eq(errno, EINVAL);
flag <<= 1;
}
}
gem_close(fd, arg.handle);
}
static void
test_copy(int fd)
{
@ -336,6 +386,8 @@ igt_main
igt_fixture
fd = drm_open_any();
igt_subtest("invalid flags")
test_invalid_flags(fd);
igt_subtest("copy")
test_copy(fd);
igt_subtest("read")