@@ -142,6 +142,44 @@ static __always_inline void transp4x(u32 d[], unsigned int n, unsigned int m)
}
+ /*
+ * Transpose operations on 2 32-bit words
+ */
+
+static __always_inline void transp2(u32 d[], unsigned int n, unsigned int m)
+{
+ u32 mask = get_mask(n);
+
+ switch (m) {
+ case 1:
+ /* Single n x 1 block */
+ _transp(d, 0, 1, n, mask);
+ return;
+ }
+
+ BUILD_BUG();
+}
+
+
+ /*
+ * Transpose operations on 2 32-bit words (reverse order)
+ */
+
+static __always_inline void transp2x(u32 d[], unsigned int n, unsigned int m)
+{
+ u32 mask = get_mask(n);
+
+ switch (m) {
+ case 1:
+ /* Single n x 1 block */
+ _transp(d, 1, 0, n, mask);
+ return;
+ }
+
+ BUILD_BUG();
+}
+
+
/*
* Compose two values, using a bitmask as decision value
* This is equivalent to (a & mask) | (b & ~mask)
Add transpose operations on two 32-bit words, using normal or reverse order. To be used by the Atari DRM driver. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> --- drivers/video/fbdev/c2p_core.h | 38 ++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+)