tridentfb: acceleration code improvements

This patch brings various acceleration improvements:
- set  copyarea/fillrect for non-accelerated framebuffer (fix)
- remove 15 bpp depth handling to simplify code as it hardly
  works (15 bpp handling was obviously missing in some switches)
- add fb_sync call and move waiting before accelerated function
  to make acceleration more asynchronous to cpu (few % of speed
  improvement)
- add cpu_relax() call in waiting loops
- make longer register names and name more registers
- move registers' definition to header
- general code improvements (shortening, simplifying)

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 20 insertions, 1 deletions

diff --git a/include/video/trident.h b/include/video/trident.h
index 76d81b2198d..7540501bc04 100644
--- a/include/video/trident.h
+++ b/include/video/trident.h
@@ -4,7 +4,7 @@
 #endif
 
 #if TRIDENTFB_DEBUG
-#define debug(f,a...)   printk("%s:" f,  __FUNCTION__ , ## a);mdelay(1000);
+#define debug(f,a...)   printk("%s:" f,  __FUNCTION__ , ## a);mdelay(100);
 #else
 #define debug(f,a...)
 #endif
@@ -124,3 +124,22 @@
 #define BiosMode     0x5c
 #define BiosReg      0x5d
 
+/* Graphics Engine */
+#define STATUS  0x2120
+#define OLDCMD  0x2124
+#define DRAWFL  0x2128
+#define OLDCLR  0x212C
+#define OLDDST  0x2138
+#define OLDSRC  0x213C
+#define OLDDIM  0x2140
+#define CMD     0x2144
+#define ROP     0x2148
+#define COLOR   0x2160
+#define SRC1    0x2100
+#define SRC2    0x2104
+#define DST1    0x2108
+#define DST2    0x210C
+
+#define ROP_S   0xCC
+#define ROP_P   0xF0
+#define ROP_X   0x66