Mesa (main): crocus: disable Z16

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Module: Mesa
Branch: main
Commit: 2e97d8245d01f81e48b79855aa7f0c9bbeb67fa0
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=2e97d8245d01f81e48b79855aa7f0c9bbeb67fa0

Author: Dave Airlie <airlied at redhat.com>
Date:   Wed Jun 16 13:39:39 2021 +1000

crocus: disable Z16

This is disabled on i965 for all pre-gen8, so do the same here.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11409>

---

 src/gallium/drivers/crocus/crocus_formats.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/drivers/crocus/crocus_formats.c b/src/gallium/drivers/crocus/crocus_formats.c
index 31762643bdc..99c203243e3 100644
--- a/src/gallium/drivers/crocus/crocus_formats.c
+++ b/src/gallium/drivers/crocus/crocus_formats.c
@@ -470,8 +470,8 @@ crocus_is_format_supported(struct pipe_screen *pscreen,
       supported &= format == ISL_FORMAT_R32_FLOAT_X8X24_TYPELESS ||
                    format == ISL_FORMAT_R32_FLOAT ||
                    format == ISL_FORMAT_R24_UNORM_X8_TYPELESS ||
-                   format == ISL_FORMAT_R16_UNORM ||
                    format == ISL_FORMAT_R8_UINT;
+      /* Z16 is disabled here as on pre-GEN8 it's slower. */
    }
 
    if (usage & PIPE_BIND_RENDER_TARGET) {