drm/nv40/fb: use an actual compressed zeta format

SPLIT is apparently just that, and only splits Z and S components.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/nv40.c b/drivers/gpu/drm/nouveau/core/subdev/fb/nv40.c
index fe7e298..65e131b 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/subdev/fb/nv40.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/nv40.c
@@ -54,7 +54,7 @@ nv40_fb_tile_comp(struct nouveau_fb *pfb, int i, u32 size, u32 flags,
        u32 tags  = round_up(tiles / pfb->ram.parts, 0x100);
        if ( (flags & 2) &&
            !nouveau_mm_head(&pfb->tags, 1, tags, tags, 1, &tile->tag)) {
-               tile->zcomp  = 0x24000000; /* Z24S8_SPLIT */
+               tile->zcomp  = 0x28000000; /* Z24S8_SPLIT_GRAD */
                tile->zcomp |= ((tile->tag->offset           ) >> 8);
                tile->zcomp |= ((tile->tag->offset + tags - 1) >> 8) << 13;
 #ifdef __BIG_ENDIAN