set bit15 (Disable Rebacking for Compression) of CACHE_MODE_0 register if the gen attribute, 'disable_ccs_repack' is set.
Signed-off-by: Dongwon Kim <[email protected]> --- src/gallium/drivers/iris/iris_state.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/src/gallium/drivers/iris/iris_state.c b/src/gallium/drivers/iris/iris_state.c index bf31f31f3e4..ce25f1ffcb3 100644 --- a/src/gallium/drivers/iris/iris_state.c +++ b/src/gallium/drivers/iris/iris_state.c @@ -755,6 +755,16 @@ iris_init_render_context(struct iris_screen *screen, } iris_emit_lri(batch, SLICE_COMMON_ECO_CHICKEN1, reg_val); + /* hardware specification recommends disabling repacking for + * the compatibility with decompression mechanism in display controller. + */ + if (devinfo->disable_ccs_repack) { + iris_pack_state(GENX(CACHE_MODE_0), ®_val, reg) { + reg.DisableRepackingforCompression = true; + reg.DisableRepackingforCompressionMask = true; + } + iris_emit_lri(batch, CACHE_MODE_0, reg_val); + } // XXX: 3D_MODE? #endif -- 2.17.1 _______________________________________________ mesa-dev mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-dev
