diff --git a/gfx/qcms/chain.c b/gfx/qcms/chain.c
index a259499db6b6..edc91715396c 100644
--- a/gfx/qcms/chain.c
+++ b/gfx/qcms/chain.c
@@ -138,12 +138,12 @@ static void qcms_transform_module_clut_only(struct qcms_modular_transform *trans
 		float linear_g = *src++;
 		float linear_b = *src++;
 
-		int x = floor(linear_r * (transform->grid_size-1));
-		int y = floor(linear_g * (transform->grid_size-1));
-		int z = floor(linear_b * (transform->grid_size-1));
-		int x_n = ceil(linear_r * (transform->grid_size-1));
-		int y_n = ceil(linear_g * (transform->grid_size-1));
-		int z_n = ceil(linear_b * (transform->grid_size-1));
+		int x = floorf(linear_r * (transform->grid_size-1));
+		int y = floorf(linear_g * (transform->grid_size-1));
+		int z = floorf(linear_b * (transform->grid_size-1));
+		int x_n = ceilf(linear_r * (transform->grid_size-1));
+		int y_n = ceilf(linear_g * (transform->grid_size-1));
+		int z_n = ceilf(linear_b * (transform->grid_size-1));
 		float x_d = linear_r * (transform->grid_size-1) - x;
 		float y_d = linear_g * (transform->grid_size-1) - y;
 		float z_d = linear_b * (transform->grid_size-1) - z;
@@ -198,12 +198,12 @@ static void qcms_transform_module_clut(struct qcms_modular_transform *transform,
 		float linear_b = lut_interp_linear_float(device_b,
 				transform->input_clut_table_b, transform->input_clut_table_length);
 
-		int x = floor(linear_r * (transform->grid_size-1));
-		int y = floor(linear_g * (transform->grid_size-1));
-		int z = floor(linear_b * (transform->grid_size-1));
-		int x_n = ceil(linear_r * (transform->grid_size-1));
-		int y_n = ceil(linear_g * (transform->grid_size-1));
-		int z_n = ceil(linear_b * (transform->grid_size-1));
+		int x = floorf(linear_r * (transform->grid_size-1));
+		int y = floorf(linear_g * (transform->grid_size-1));
+		int z = floorf(linear_b * (transform->grid_size-1));
+		int x_n = ceilf(linear_r * (transform->grid_size-1));
+		int y_n = ceilf(linear_g * (transform->grid_size-1));
+		int z_n = ceilf(linear_b * (transform->grid_size-1));
 		float x_d = linear_r * (transform->grid_size-1) - x;
 		float y_d = linear_g * (transform->grid_size-1) - y;
 		float z_d = linear_b * (transform->grid_size-1) - z;
@@ -271,12 +271,12 @@ static void qcms_transform_module_tetra_clut(struct qcms_modular_transform *tran
 		float linear_b = lut_interp_linear_float(device_b,
 				transform->input_clut_table_b, transform->input_clut_table_length);
 
-		int x = floor(linear_r * (transform->grid_size-1));
-		int y = floor(linear_g * (transform->grid_size-1));
-		int z = floor(linear_b * (transform->grid_size-1));
-		int x_n = ceil(linear_r * (transform->grid_size-1));
-		int y_n = ceil(linear_g * (transform->grid_size-1));
-		int z_n = ceil(linear_b * (transform->grid_size-1));
+		int x = floorf(linear_r * (transform->grid_size-1));
+		int y = floorf(linear_g * (transform->grid_size-1));
+		int z = floorf(linear_b * (transform->grid_size-1));
+		int x_n = ceilf(linear_r * (transform->grid_size-1));
+		int y_n = ceilf(linear_g * (transform->grid_size-1));
+		int z_n = ceilf(linear_b * (transform->grid_size-1));
 		float rx = linear_r * (transform->grid_size-1) - x;
 		float ry = linear_g * (transform->grid_size-1) - y;
 		float rz = linear_b * (transform->grid_size-1) - z;
diff --git a/gfx/qcms/transform.c b/gfx/qcms/transform.c
index 51ab83f5daab..103b65bb8efc 100644
--- a/gfx/qcms/transform.c
+++ b/gfx/qcms/transform.c
@@ -435,12 +435,12 @@ static void qcms_transform_data_clut(qcms_transform *transform, unsigned char *s
 		unsigned char in_b = *src++;
 		float linear_r = in_r/255.0f, linear_g=in_g/255.0f, linear_b = in_b/255.0f;
 
-		int x = floor(linear_r * (transform->grid_size-1));
-		int y = floor(linear_g * (transform->grid_size-1));
-		int z = floor(linear_b * (transform->grid_size-1));
-		int x_n = ceil(linear_r * (transform->grid_size-1));
-		int y_n = ceil(linear_g * (transform->grid_size-1));
-		int z_n = ceil(linear_b * (transform->grid_size-1));
+		int x = floorf(linear_r * (transform->grid_size-1));
+		int y = floorf(linear_g * (transform->grid_size-1));
+		int z = floorf(linear_b * (transform->grid_size-1));
+		int x_n = ceilf(linear_r * (transform->grid_size-1));
+		int y_n = ceilf(linear_g * (transform->grid_size-1));
+		int z_n = ceilf(linear_b * (transform->grid_size-1));
 		float x_d = linear_r * (transform->grid_size-1) - x; 
 		float y_d = linear_g * (transform->grid_size-1) - y;
 		float z_d = linear_b * (transform->grid_size-1) - z; 
@@ -496,12 +496,12 @@ static void qcms_transform_data_tetra_clut_rgba(qcms_transform *transform, unsig
 		unsigned char in_a = *src++;
 		float linear_r = in_r/255.0f, linear_g=in_g/255.0f, linear_b = in_b/255.0f;
 
-		int x = floor(linear_r * (transform->grid_size-1));
-		int y = floor(linear_g * (transform->grid_size-1));
-		int z = floor(linear_b * (transform->grid_size-1));
-		int x_n = ceil(linear_r * (transform->grid_size-1));
-		int y_n = ceil(linear_g * (transform->grid_size-1));
-		int z_n = ceil(linear_b * (transform->grid_size-1));
+		int x = floorf(linear_r * (transform->grid_size-1));
+		int y = floorf(linear_g * (transform->grid_size-1));
+		int z = floorf(linear_b * (transform->grid_size-1));
+		int x_n = ceilf(linear_r * (transform->grid_size-1));
+		int y_n = ceilf(linear_g * (transform->grid_size-1));
+		int z_n = ceilf(linear_b * (transform->grid_size-1));
 		float rx = linear_r * (transform->grid_size-1) - x; 
 		float ry = linear_g * (transform->grid_size-1) - y;
 		float rz = linear_b * (transform->grid_size-1) - z; 
@@ -611,12 +611,12 @@ static void qcms_transform_data_tetra_clut(qcms_transform *transform, unsigned c
 		unsigned char in_b = *src++;
 		float linear_r = in_r/255.0f, linear_g=in_g/255.0f, linear_b = in_b/255.0f;
 
-		int x = floor(linear_r * (transform->grid_size-1));
-		int y = floor(linear_g * (transform->grid_size-1));
-		int z = floor(linear_b * (transform->grid_size-1));
-		int x_n = ceil(linear_r * (transform->grid_size-1));
-		int y_n = ceil(linear_g * (transform->grid_size-1));
-		int z_n = ceil(linear_b * (transform->grid_size-1));
+		int x = floorf(linear_r * (transform->grid_size-1));
+		int y = floorf(linear_g * (transform->grid_size-1));
+		int z = floorf(linear_b * (transform->grid_size-1));
+		int x_n = ceilf(linear_r * (transform->grid_size-1));
+		int y_n = ceilf(linear_g * (transform->grid_size-1));
+		int z_n = ceilf(linear_b * (transform->grid_size-1));
 		float rx = linear_r * (transform->grid_size-1) - x; 
 		float ry = linear_g * (transform->grid_size-1) - y;
 		float rz = linear_b * (transform->grid_size-1) - z; 
diff --git a/gfx/qcms/transform_util.c b/gfx/qcms/transform_util.c
index 364feb41d966..c3d03c561960 100644
--- a/gfx/qcms/transform_util.c
+++ b/gfx/qcms/transform_util.c
@@ -76,8 +76,8 @@ float lut_interp_linear_float(float value, float *table, int length)
 {
         int upper, lower;
         value = value * (length - 1);
-        upper = ceil(value);
-        lower = floor(value);
+        upper = ceilf(value);
+        lower = floorf(value);
         //XXX: can we be more performant here?
         value = table[upper]*(1. - (upper - value)) + table[lower]*(upper - value);
         /* scale the value */