From: Marek Olšák Date: Thu, 16 Apr 2015 18:40:31 +0000 (+0200) Subject: radeonsi: set an optimal value for DB_Z_INFO.ZRANGE_PRECISION X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=db2415189a04fd64106a739c635b1433192ef969;p=mesa.git radeonsi: set an optimal value for DB_Z_INFO.ZRANGE_PRECISION Required because of a VI hw bug. Reviewed-by: Michel Dänzer --- diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c index f24cbbdaba0..dc19d290022 100644 --- a/src/gallium/drivers/radeonsi/si_state.c +++ b/src/gallium/drivers/radeonsi/si_state.c @@ -1948,12 +1948,6 @@ static void si_init_depth_surface(struct si_context *sctx, z_info |= S_028040_TILE_SURFACE_ENABLE(1) | S_028040_ALLOW_EXPCLEAR(1); - /* This is optimal for the clear value of 1.0 and using - * the LESS and LEQUAL test functions. Set this to 0 - * for the opposite case. This can only be changed when - * clearing. */ - z_info |= S_028040_ZRANGE_PRECISION(1); - /* Use all of the htile_buffer for depth, because we don't * use HTILE for stencil because of FAST_STENCIL_DISABLE. */ s_info |= S_028044_TILE_STENCIL_DISABLE(1); @@ -2183,7 +2177,8 @@ static void si_emit_framebuffer_state(struct si_context *sctx, struct r600_atom r600_write_context_reg_seq(cs, R_02803C_DB_DEPTH_INFO, 9); radeon_emit(cs, zb->db_depth_info); /* R_02803C_DB_DEPTH_INFO */ - radeon_emit(cs, zb->db_z_info); /* R_028040_DB_Z_INFO */ + radeon_emit(cs, zb->db_z_info | /* R_028040_DB_Z_INFO */ + S_028040_ZRANGE_PRECISION(rtex->depth_clear_value != 0)); radeon_emit(cs, zb->db_stencil_info); /* R_028044_DB_STENCIL_INFO */ radeon_emit(cs, zb->db_depth_base); /* R_028048_DB_Z_READ_BASE */ radeon_emit(cs, zb->db_stencil_base); /* R_02804C_DB_STENCIL_READ_BASE */