Separated Intel drivers from default DriDrivers to avoid building them on

    IA64 (Egbert Eich).
Fixed wrong function prototype (Egbert Eich).
Don't test for generic VGA on IA64 (Egbert Eich).
Fixed a segfault when accessing a structure before verifying the pointer
    exists (Egbert Eich).
Added a showcache option for debugging (Egbert Eich).
Increase default video RAM size to 16MB when DRI is enabled and more than
    128MB are available (Egbert Eich). Fixed lockups during mode switch.
    Problem was introduced when attempting to copy the behavior during
    LeaveVT()/EnterVT() but but forgetting to call I810DRILeave() before
    I810DRIEnter(). The entire DRILeave()/Enter() scenario has been
    commented out as it didn't seem to be necessary (Egbert Eich).
Fix TweakMemorySize() (tested with i855/i865) (Egbert Eich).
increased MAX_DEVICES to 128 (Egbert Eich).
Use OS provided PCI config space access as default method (Egbert Eich).
Added support for Linux 2.6 proc file format.
Fixed unaligned accesses to pieces of the VBE info block. VESA did not
    align elements to size (Egbert Eich).

1 files changed, 18 insertions, 3 deletions

diff --git a/src/radeon_driver.c b/src/radeon_driver.c
index 221c9fb9..786f6c2c 100644
--- a/src/radeon_driver.c
+++ b/src/radeon_driver.c
@@ -158,8 +158,9 @@ typedef enum {
     OPTION_MIN_DOTCLOCK,
 #ifdef RENDER
     OPTION_RENDER_ACCEL,
-    OPTION_SUBPIXEL_ORDER
+    OPTION_SUBPIXEL_ORDER,
 #endif
+    OPTION_SHOWCACHE
 } RADEONOpts;
 
 const OptionInfoRec RADEONOptions[] = {
@@ -202,6 +203,7 @@ const OptionInfoRec RADEONOptions[] = {
     { OPTION_RENDER_ACCEL,   "RenderAccel",      OPTV_BOOLEAN, {0}, FALSE },
     { OPTION_SUBPIXEL_ORDER, "SubPixelOrder",    OPTV_ANYSTR,  {0}, FALSE },
 #endif
+    { OPTION_SHOWCACHE,      "ShowCache",        OPTV_BOOLEAN, {0}, FALSE },
     { -1,                    NULL,               OPTV_NONE,    {0}, FALSE }
 };
 
@@ -2440,13 +2442,16 @@ static Bool RADEONPreInitConfig(ScrnInfoPtr pScrn)
 	}
     }
 #endif
+    xf86GetOptValBool(info->Options, OPTION_SHOWCACHE, &info->showCache);
+    if (info->showCache)
+	xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
+		   "Option ShowCache enabled\n");
 
 #ifdef RENDER
     info->RenderAccel = xf86ReturnOptValBool (info->Options,
 					      OPTION_RENDER_ACCEL, TRUE);
 #endif
 
-
     return TRUE;
 }
 
@@ -7001,11 +7006,21 @@ void RADEONDoAdjustFrame(ScrnInfoPtr pScrn, int x, int y, int clone)
 {
     RADEONInfoPtr  info       = RADEONPTR(pScrn);
     unsigned char *RADEONMMIO = info->MMIO;
-    int            reg, Base = y * info->CurrentLayout.displayWidth + x;
+    int            reg, Base;
 #ifdef XF86DRI
     RADEONSAREAPrivPtr pSAREAPriv;
 #endif
 
+    if (info->showCache && y) {
+	        int lastline = info->FbMapSize /
+		    ((pScrn->displayWidth * pScrn->bitsPerPixel) / 8);
+
+		lastline -= pScrn->currentMode->VDisplay;
+		y += (pScrn->virtualY - 1) * (y / 3 + 1);
+		if (y > lastline) y = lastline;
+    }
+    Base = y * info->CurrentLayout.displayWidth + x;
+    
     switch (info->CurrentLayout.pixel_code) {
     case 15:
     case 16: Base *= 2; break;