From 60e891915af7d0f522c9c3f966599fa07779f7aa Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@neko.keithp.com>
Date: Thu, 19 Apr 2007 14:02:23 -0700
Subject: Eliminate LinearAlloc option and code.

With the fixes to the 2D frame buffer allocation that allows up to 65536
lines of 2D frame buffer in XAA mode, the old linear allocation hacks are no
longer necessary.
---
 man/intel.man     |  6 ------
 src/i830.h        |  2 --
 src/i830_driver.c | 20 --------------------
 src/i830_memory.c | 11 -----------
 4 files changed, 39 deletions(-)

diff --git a/man/intel.man b/man/intel.man
index 5ce31eaa..178ff0a6 100644
--- a/man/intel.man
+++ b/man/intel.man
@@ -121,12 +121,6 @@ other drivers.
 Disable or enable XVideo support.
 Default: XVideo is enabled for configurations where it is supported.
 .TP
-.BI "Option \*qLinearAlloc\*q \*q" integer \*q
-Allows more memory for the offscreen allocator. This usually helps in
-situations where HDTV movies are required to play but not enough offscreen
-memory is usually available. Set this to 8160 for upto 1920x1080 HDTV support.
-Default 0KB (off).
-.TP
 .BI "Option \*qLegacy3D\*q \*q" boolean \*q
 Enable support for the legacy i915_dri.so 3D driver.
 This will, among other things, make the 2D driver tell libGL to
diff --git a/src/i830.h b/src/i830.h
index 4cb31b6d..d81857bd 100644
--- a/src/i830.h
+++ b/src/i830.h
@@ -298,9 +298,7 @@ typedef struct _I830Rec {
 #ifdef I830_XV
    /* For Xvideo */
    i830_memory *overlay_regs;
-   i830_memory *xaa_linear;
 #endif
-   unsigned long LinearAlloc;
    XF86ModReqInfo shadowReq; /* to test for later libshadow */
    Rotation rotation;
    void (*PointerMoved)(int, int, int);
diff --git a/src/i830_driver.c b/src/i830_driver.c
index e3bf330a..2c1e5140 100644
--- a/src/i830_driver.c
+++ b/src/i830_driver.c
@@ -274,7 +274,6 @@ typedef enum {
    OPTION_VIDEO_KEY,
    OPTION_COLOR_KEY,
    OPTION_CHECKDEVICES,
-   OPTION_LINEARALLOC,
    OPTION_MODEDEBUG,
 #ifdef XF86DRI_MM
    OPTION_INTELTEXPOOL,
@@ -296,7 +295,6 @@ static OptionInfoRec I830Options[] = {
    {OPTION_COLOR_KEY,	"ColorKey",	OPTV_INTEGER,	{0},	FALSE},
    {OPTION_VIDEO_KEY,	"VideoKey",	OPTV_INTEGER,	{0},	FALSE},
    {OPTION_CHECKDEVICES, "CheckDevices",OPTV_BOOLEAN,	{0},	FALSE},
-   {OPTION_LINEARALLOC, "LinearAlloc",  OPTV_INTEGER,   {0},    FALSE},
    {OPTION_MODEDEBUG,	"ModeDebug",	OPTV_BOOLEAN,	{0},	FALSE},
 #ifdef XF86DRI_MM
    {OPTION_INTELTEXPOOL,"Legacy3D",     OPTV_BOOLEAN,	{0},	FALSE},
@@ -1300,13 +1298,6 @@ I830PreInit(ScrnInfoPtr pScrn, int flags)
    
 #endif
 
-   pI830->LinearAlloc = 0;
-   if (xf86GetOptValULong(pI830->Options, OPTION_LINEARALLOC,
-			    &(pI830->LinearAlloc))) {
-      if (pI830->LinearAlloc < 0)
-         pI830->LinearAlloc = 0;
-   }
-
    I830PreInitDDC(pScrn);
    for (i = 0; i < num_pipe; i++) {
        i830_crtc_init(pScrn, i);
@@ -2544,17 +2535,6 @@ I830ScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
 	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
 		       "Failed to init memory manager\n");
 	 }
-
-	 if (pI830->xaa_linear != NULL &&
-	     xf86InitFBManagerLinear(pScreen,
-				     pI830->xaa_linear->offset / pI830->cpp,
-				     pI830->xaa_linear->size / pI830->cpp))
-	 {
-            xf86DrvMsg(scrnIndex, X_INFO,
-		       "Using %ld bytes of offscreen memory for linear "
-		       "(offset=0x%lx)\n", pI830->xaa_linear->size,
-		       pI830->xaa_linear->offset);
-	 }
       } else {
 	 if (!I830InitFBManager(pScreen, &(pI8301->FbMemBox2))) {
 	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
diff --git a/src/i830_memory.c b/src/i830_memory.c
index 20b33bca..15d241b2 100644
--- a/src/i830_memory.c
+++ b/src/i830_memory.c
@@ -230,7 +230,6 @@ i830_reset_allocations(ScrnInfoPtr pScrn)
     pI830->exa_offscreen = NULL;
     pI830->exa_965_state = NULL;
     pI830->overlay_regs = NULL;
-    pI830->xaa_linear = NULL;
     pI830->logical_context = NULL;
     pI830->back_buffer = NULL;
     pI830->third_buffer = NULL;
@@ -663,16 +662,6 @@ i830_allocate_overlay(ScrnInfoPtr pScrn)
 	}
     }
 
-    if (!pI830->useEXA && pI830->LinearAlloc) {
-	pI830->xaa_linear = i830_allocate_memory(pScrn, "XAA linear memory",
-						 KB(pI830->LinearAlloc),
-						 GTT_PAGE_SIZE, 0);
-	if (pI830->xaa_linear == NULL) {
-	    xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
-		       "Failed to allocate linear buffer space\n");
-	}
-    }
-
     return TRUE;
 }
 #endif
-- 
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