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authorMarek Olšák <[email protected]>2012-08-14 20:42:35 +0200
committerMarek Olšák <[email protected]>2012-09-27 19:14:44 +0200
commit9f5d6320f2ee1e8147866030212f9924c6b3bf60 (patch)
treeeb47d8fa3d5efa47c9c859ccfe1b75bab4f6bd08 /src/gallium/drivers/r600/r600_state.c
parentb1d0fe022dc4826dadce014ab8fe062a82f75a16 (diff)
r600g: use invalid DB hardware formats to disable depth/stencil
Diffstat (limited to 'src/gallium/drivers/r600/r600_state.c')
-rw-r--r--src/gallium/drivers/r600/r600_state.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
index 17ab259c55d..1b7869c3e65 100644
--- a/src/gallium/drivers/r600/r600_state.c
+++ b/src/gallium/drivers/r600/r600_state.c
@@ -1552,6 +1552,8 @@ static void r600_set_framebuffer_state(struct pipe_context *ctx,
}
if (rctx->framebuffer.state.zsbuf) {
rctx->framebuffer.atom.num_dw += 13;
+ } else if (rctx->screen->info.drm_minor >= 18) {
+ rctx->framebuffer.atom.num_dw += 3;
}
if (rctx->family > CHIP_R600 && rctx->family < CHIP_RV770) {
rctx->framebuffer.atom.num_dw += 2;
@@ -1753,6 +1755,10 @@ static void r600_emit_framebuffer_state(struct r600_context *rctx, struct r600_a
r600_write_context_reg(cs, R_028D34_DB_PREFETCH_LIMIT, surf->db_prefetch_limit);
sbu |= SURFACE_BASE_UPDATE_DEPTH;
+ } else if (rctx->screen->info.drm_minor >= 18) {
+ /* DRM 2.6.18 allows the INVALID format to disable depth/stencil.
+ * Older kernels are out of luck. */
+ r600_write_context_reg(cs, R_028010_DB_DEPTH_INFO, S_028010_FORMAT(V_028010_DEPTH_INVALID));
}
/* SURFACE_BASE_UPDATE */