2 files changed, 5 insertions, 1 deletions
diff --git a/src/gallium/drivers/softpipe/sp_context.c b/src/gallium/drivers/softpipe/sp_context.c
index 626c3a9d4e1..9b1313bc83e 100644
--- a/src/gallium/drivers/softpipe/sp_context.c
+++ b/src/gallium/drivers/softpipe/sp_context.c
@@ -33,6 +33,7 @@
 #include "pipe/p_defines.h"
 #include "pipe/p_inlines.h"
 #include "pipe/p_util.h"
+#include "util/u_math.h"
 #include "sp_clear.h"
 #include "sp_context.h"
 #include "sp_flush.h"
@@ -128,6 +129,8 @@ softpipe_create( struct pipe_screen *screen,
    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
    uint i;
 
+   util_init_math();
+
 #ifdef PIPE_ARCH_X86
    softpipe->use_sse = !debug_get_bool_option( "GALLIUM_NOSSE", FALSE );
 #else
diff --git a/src/gallium/drivers/softpipe/sp_tex_sample.c b/src/gallium/drivers/softpipe/sp_tex_sample.c
index 01f4d0ca811..d7680ffa81d 100644
--- a/src/gallium/drivers/softpipe/sp_tex_sample.c
+++ b/src/gallium/drivers/softpipe/sp_tex_sample.c
@@ -41,6 +41,7 @@
 #include "pipe/p_defines.h"
 #include "pipe/p_util.h"
 #include "tgsi/tgsi_exec.h"
+#include "util/u_math.h"
 
 
 /*
@@ -499,7 +500,7 @@ compute_lambda(struct tgsi_sampler *sampler,
       rho = MAX2(rho, max);
    }
 
-   lambda = LOG2(rho);
+   lambda = util_fast_log2(rho);
    lambda += lodbias + sampler->state->lod_bias;
    lambda = CLAMP(lambda, sampler->state->min_lod, sampler->state->max_lod);