On Mon, Nov 17, 2014 at 11:37:19AM +0000, Chris Wilson wrote: > Signed-off-by: Chris Wilson <[email protected]> > --- > lib/ioctl_wrappers.c | 81 +++++++++++ > lib/ioctl_wrappers.h | 5 + > tests/.gitignore | 1 + > tests/Makefile.am | 2 + > tests/Makefile.sources | 1 + > tests/gem_mmap_wc.c | 370 > +++++++++++++++++++++++++++++++++++++++++++++++++ > 6 files changed, 460 insertions(+) > create mode 100644 tests/gem_mmap_wc.c > > diff --git a/lib/ioctl_wrappers.c b/lib/ioctl_wrappers.c > index f423237..8316f0d 100644 > --- a/lib/ioctl_wrappers.c > +++ b/lib/ioctl_wrappers.c > @@ -463,10 +463,91 @@ void *gem_mmap__gtt(int fd, uint32_t handle, int size, > int prot) > ptr = mmap64(0, size, prot, MAP_SHARED, fd, mmap_arg.offset); > if (ptr == MAP_FAILED) > ptr = NULL; > + else > + errno = 0; > > return ptr; > } > > +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) > + > +bool gem_mmap__has_wc(int fd) > +{ > + static int has_wc = -1; > + > + if (has_wc == -1) { > + struct drm_i915_getparam gp; > + int val = -1; > + > + has_wc = 0; > + > + memset(&gp, 0, sizeof(gp)); > + gp.param = 29; /* MMAP_VERSION */ Now 30. -Chris
-- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
