[Mesa-dev] [PATCH] nvc0: increase texture buffer object alignment to 256 for pre-GM107

[Ilia Mirkin]

We currently don't pass the low byte of the address via the surface
info, so in order to work with images, these have to implicitly be
aligned to 256. The proprietary driver also doesn't go out of its way to
provide lower alignment.

Fixes GL45-CTS.texture_buffer.texture_buffer_texture_buffer_range

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
Cc: mesa-stable at lists.freedesktop.org
---
 src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index 543857a..fc44d32 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -147,7 +147,7 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
       return 256;
    case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
-      if (class_3d < NVE4_3D_CLASS)
+      if (class_3d < GM107_3D_CLASS)
          return 256; /* IMAGE bindings require alignment to 256 */
       return 16;
    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
-- 
2.10.2