Em Sex, 2016-01-29 às 21:06 +0200, Ville Syrjälä escreveu:
> On Fri, Jan 29, 2016 at 04:46:30PM -0200, Paulo Zanoni wrote:
> > The interesting thing is that if we don't do this, we still get a
> > Y tiled framebuffer, but there won't be a fence around it, which
> > makes
> > the GTT mmaps less interesting. Is this a Kernel bug?
>
> I think some tests currently depend on not having a fence for Y tiled
> fbs. So this could break stuff.
Do you have any additional information that could help me discover
which ones? A quick look on the IGT tests mentioning tiling didn't
point anything obvious.
Besides, I think it's probably not a good idea to have such a high
level helper function behaving differently depending on the tiling
type, I'd vote to either call set_tiling on both or on none.
>
> >
> > Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
> > ---
> > lib/igt_fb.c | 39 ++++++++++++++++++++-------------------
> > 1 file changed, 20 insertions(+), 19 deletions(-)
> >
> > diff --git a/lib/igt_fb.c b/lib/igt_fb.c
> > index 5f23136..efdd793 100644
> > --- a/lib/igt_fb.c
> > +++ b/lib/igt_fb.c
> > @@ -73,6 +73,22 @@ static struct format_desc_struct {
> > #define for_each_format(f) \
> > for (f = format_desc; f - format_desc <
> > ARRAY_SIZE(format_desc); f++)
> >
> > +static unsigned int fb_mod_to_obj_tiling(uint64_t fb_mod)
> > +{
> > + switch (fb_mod) {
> > + case LOCAL_DRM_FORMAT_MOD_NONE:
> > + return I915_TILING_NONE;
> > + case LOCAL_I915_FORMAT_MOD_X_TILED:
> > + return I915_TILING_X;
> > + case LOCAL_I915_FORMAT_MOD_Y_TILED:
> > + return I915_TILING_Y;
> > + case LOCAL_I915_FORMAT_MOD_Yf_TILED:
> > + return I915_TILING_Yf;
> > + default:
> > + igt_assert(0);
> > + }
> > +}
> > +
> > static void igt_get_fb_tile_size(int fd, uint64_t tiling, int
> > fb_bpp,
> > unsigned *width_ret, unsigned
> > *height_ret)
> > {
> > @@ -191,9 +207,10 @@ static int create_bo_for_fb(int fd, int width,
> > int height, int bpp,
> >
> > gem_handle = gem_create(fd, bo_size);
> >
> > - if (tiling == LOCAL_I915_FORMAT_MOD_X_TILED)
> > - ret = __gem_set_tiling(fd, gem_handle,
> > I915_TILING_X,
> > - bo_stride);
> > + if (tiling == LOCAL_I915_FORMAT_MOD_X_TILED ||
> > + tiling == LOCAL_I915_FORMAT_MOD_Y_TILED)
> > + ret = __gem_set_tiling(fd, gem_handle,
> > + fb_mod_to_obj_tiling(tiling)
> > , bo_stride);
> >
> > *stride_ret = bo_stride;
> > *size_ret = bo_size;
> > @@ -862,22 +879,6 @@ struct fb_blit_upload {
> > } linear;
> > };
> >
> > -static unsigned int fb_mod_to_obj_tiling(uint64_t fb_mod)
> > -{
> > - switch (fb_mod) {
> > - case LOCAL_DRM_FORMAT_MOD_NONE:
> > - return I915_TILING_NONE;
> > - case LOCAL_I915_FORMAT_MOD_X_TILED:
> > - return I915_TILING_X;
> > - case LOCAL_I915_FORMAT_MOD_Y_TILED:
> > - return I915_TILING_Y;
> > - case LOCAL_I915_FORMAT_MOD_Yf_TILED:
> > - return I915_TILING_Yf;
> > - default:
> > - igt_assert(0);
> > - }
> > -}
> > -
> > static void destroy_cairo_surface__blit(void *arg)
> > {
> > struct fb_blit_upload *blit = arg;
> > --
> > 2.7.0.rc3
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
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