See commit 3b0279a69 - this restriction is documented in the "Surface
Format" field of RENDER_SURFACE_STATE.
Looking at newer documentation, this restriction appears to exist on
Haswell, but no longer applies on Gen8+.
Signed-off-by: Kenneth Graunke <kenn...@whitecape.org>
---
src/mesa/drivers/dri/i965/brw_surface_formats.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/mesa/drivers/dri/i965/brw_surface_formats.c
b/src/mesa/drivers/dri/i965/brw_surface_formats.c
index 3c0b23b..ba9b5b9 100644
--- a/src/mesa/drivers/dri/i965/brw_surface_formats.c
+++ b/src/mesa/drivers/dri/i965/brw_surface_formats.c
@@ -806,7 +806,8 @@ brw_render_target_supported(struct brw_context *brw,
/* Under some conditions, MSAA is not supported for formats whose width is
* more than 64 bits.
*/
- if (rb->NumSamples > 0 && _mesa_get_format_bytes(format) > 8) {
+ if (brw->gen < 8 &&
+ rb->NumSamples > 0 && _mesa_get_format_bytes(format) > 8) {
/* Gen6: MSAA on >64 bit formats is unsupported. */
if (brw->gen <= 6)
return false;
--
2.7.4
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