[Mesa-dev] [PATCH v2 08/10] etnaviv: fill in modifier in etna_resource_get_handle

[Lucas Stach]

This allows the state trackers to know the tiling layout of the
resource and pass this through the various userspace protocols.

Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <laanwj at gmail.com>
---
 src/gallium/drivers/etnaviv/etnaviv_resource.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/gallium/drivers/etnaviv/etnaviv_resource.c b/src/gallium/drivers/etnaviv/etnaviv_resource.c
index b27a1e04e6ca..d4198d8e852b 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_resource.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_resource.c
@@ -59,6 +59,24 @@ static enum etna_surface_layout modifier_to_layout(uint64_t modifier)
    }
 }
 
+static uint64_t layout_to_modifier(enum etna_surface_layout layout)
+{
+   switch (layout) {
+   case ETNA_LAYOUT_TILED:
+      return DRM_FORMAT_MOD_VIVANTE_TILED;
+   case ETNA_LAYOUT_SUPER_TILED:
+      return DRM_FORMAT_MOD_VIVANTE_SUPER_TILED;
+   case ETNA_LAYOUT_MULTI_TILED:
+      return DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED;
+   case ETNA_LAYOUT_MULTI_SUPERTILED:
+      return DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED;
+   case ETNA_LAYOUT_LINEAR:
+      return DRM_FORMAT_MOD_LINEAR;
+   default:
+      return DRM_FORMAT_MOD_INVALID;
+   }
+}
+
 /* A tile is 4x4 pixels, having 'screen->specs.bits_per_tile' of tile status.
  * So, in a buffer of N pixels, there are N / (4 * 4) tiles.
  * We need N * screen->specs.bits_per_tile / (4 * 4) bits of tile status, or
@@ -476,6 +494,7 @@ etna_resource_get_handle(struct pipe_screen *pscreen,
       rsc = etna_resource(rsc->external);
 
    handle->stride = rsc->levels[0].stride;
+   handle->modifier = layout_to_modifier(rsc->layout);
 
    if (handle->type == DRM_API_HANDLE_TYPE_SHARED) {
       return etna_bo_get_name(rsc->bo, &handle->handle) == 0;
-- 
2.11.0