Rename Option "NoAccel" to "Accel"

Removes the need for a double negation when forcing acceleration on.

Note that this change is backwards compatible, as the option parser
automagically handles the 'No' prefix.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

man/radeon.man

@@ -225,12 +225,12 @@ are supported:
 Selects software cursor.  The default is
 .B off.
 .TP
-.BI "Option \*qNoAccel\*q \*q" boolean \*q
+.BI "Option \*qAccel\*q \*q" boolean \*q
 Enables or disables all hardware acceleration.
 .br
-The default is to
-.B enable
-hardware acceleration.
+The default is
+.B on
+except for HAWAII.
 .TP
 .BI "Option \*qZaphodHeads\*q \*q" string \*q
 Specify the RandR output(s) to use with zaphod mode for a particular driver

src/radeon.h

@@ -135,7 +135,7 @@
 #endif
 
 typedef enum {
-    OPTION_NOACCEL,
+    OPTION_ACCEL,
     OPTION_SW_CURSOR,
     OPTION_PAGE_FLIP,
     OPTION_EXA_PIXMAPS,

src/radeon_kms.c

@@ -59,7 +59,7 @@ extern SymTabRec RADEONChipsets[];
 static Bool radeon_setup_kernel_mem(ScreenPtr pScreen);
 
 const OptionInfoRec RADEONOptions_KMS[] = {
-    { OPTION_NOACCEL,        "NoAccel",          OPTV_BOOLEAN, {0}, FALSE },
+    { OPTION_ACCEL,          "Accel",            OPTV_BOOLEAN, {0}, FALSE },
     { OPTION_SW_CURSOR,      "SWcursor",         OPTV_BOOLEAN, {0}, FALSE },
     { OPTION_PAGE_FLIP,      "EnablePageFlip",   OPTV_BOOLEAN, {0}, FALSE },
     { OPTION_COLOR_TILING,   "ColorTiling",      OPTV_BOOLEAN, {0}, FALSE },
@@ -499,8 +499,8 @@ static Bool RADEONPreInitAccel_KMS(ScrnInfoPtr pScrn)
 	info->is_fast_fb = TRUE;
     }
 
-    if (xf86ReturnOptValBool(info->Options, OPTION_NOACCEL,
-			     info->ChipFamily == CHIP_FAMILY_HAWAII) ||
+    if (!xf86ReturnOptValBool(info->Options, OPTION_ACCEL,
+			     info->ChipFamily != CHIP_FAMILY_HAWAII) ||
 	(!RADEONIsAccelWorking(pScrn))) {
 	xf86DrvMsg(pScrn->scrnIndex, X_INFO,
 		   "GPU accel disabled or not working, using shadowfb for KMS\n");