alpha, drm: Remove obsolete Alpha support in MGA DRM code

Remove an obsolete Alpha adjustment in the drm for MGA on Alpha.

Signed-off-by: Jay Estabrook <jay.estabrook@gmail.com>
Tested-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/mga/mga_drv.h b/drivers/gpu/drm/mga/mga_drv.h
index 1084fa4d261b7c9d6638d965a5a4c401c9949720..54558a01969ae02d6875c99fafb605f27a717ce0 100644 (file)
--- a/drivers/gpu/drm/mga/mga_drv.h
+++ b/drivers/gpu/drm/mga/mga_drv.h
@@ -195,29 +195,10 @@ extern long mga_compat_ioctl(struct file *filp, unsigned int cmd,
 
 #define mga_flush_write_combine()      DRM_WRITEMEMORYBARRIER()
 
-#if defined(__linux__) && defined(__alpha__)
-#define MGA_BASE(reg)          ((unsigned long)(dev_priv->mmio->handle))
-#define MGA_ADDR(reg)          (MGA_BASE(reg) + reg)
-
-#define MGA_DEREF(reg)         (*(volatile u32 *)MGA_ADDR(reg))
-#define MGA_DEREF8(reg)                (*(volatile u8 *)MGA_ADDR(reg))
-
-#define MGA_READ(reg)          (_MGA_READ((u32 *)MGA_ADDR(reg)))
-#define MGA_READ8(reg)         (_MGA_READ((u8 *)MGA_ADDR(reg)))
-#define MGA_WRITE(reg, val)    do { DRM_WRITEMEMORYBARRIER(); MGA_DEREF(reg) = val; } while (0)
-#define MGA_WRITE8(reg, val)   do { DRM_WRITEMEMORYBARRIER(); MGA_DEREF8(reg) = val; } while (0)
-
-static inline u32 _MGA_READ(u32 *addr)
-{
-       DRM_MEMORYBARRIER();
-       return *(volatile u32 *)addr;
-}
-#else
 #define MGA_READ8(reg)         DRM_READ8(dev_priv->mmio, (reg))
 #define MGA_READ(reg)          DRM_READ32(dev_priv->mmio, (reg))
 #define MGA_WRITE8(reg, val)   DRM_WRITE8(dev_priv->mmio, (reg), (val))
 #define MGA_WRITE(reg, val)    DRM_WRITE32(dev_priv->mmio, (reg), (val))
-#endif
 
 #define DWGREG0                0x1c00
 #define DWGREG0_END    0x1dff