Drop probing for VGA, VGAWonder, 8514, Mach32.

- ChipHasSUBSYS_CNTL
- Coprocessor
- SharedAccelerator
- SharedVGA <=> (VGAAdapter != ATI_ADAPTER_NONE)

8 files changed, 16 insertions, 898 deletions

diff --git a/src/atibus.c b/src/atibus.c
index cf2969f..f20e472 100644
--- a/src/atibus.c
+++ b/src/atibus.c
@@ -67,14 +67,13 @@ ATIClaimResources
     Bool   Active
 )
 {
-    resPtr   pResources;
 
 #ifndef AVOID_CPIO
 
     resRange Resources[2] = {{0, 0, 0}, _END};
 
     /* Claim VGA and VGAWonder resources */
-    if ((pATI->VGAAdapter != ATI_ADAPTER_NONE) && (Active || !pATI->SharedVGA))
+    if ((pATI->VGAAdapter != ATI_ADAPTER_NONE) && (Active))
     {
         /*
          * 18800-x's are the only ATI controllers that decode all ISA aliases
@@ -82,23 +81,13 @@ ATIClaimResources
          * VGA aliases, but do decode VGA Wonder aliases whose most significant
          * nibble is zero.
          */
-        xf86ClaimFixedResources(
-            (pATI->Chip <= ATI_CHIP_18800_1) ?
-            (pATI->SharedVGA ? resVgaSparseShared : resVgaSparseExclusive) :
-            (pATI->SharedVGA ? resVgaShared : resVgaExclusive),
-            pATI->iEntity);
+        xf86ClaimFixedResources(resVgaShared, pATI->iEntity);
 
         if (pATI->CPIO_VGAWonder)
         {
-            if (pATI->SharedVGA)
-                Resources[0].type = ResShrIoSparse | ResBus;
-            else
-                Resources[0].type = ResExcIoSparse | ResBus;
+            Resources[0].type = ResShrIoSparse | ResBus;
             Resources[0].rBase = pATI->CPIO_VGAWonder;
-            if (pATI->Chip <= ATI_CHIP_18800_1)
-                Resources[0].rMask = 0x03FEU;
-            else
-                Resources[0].rMask = 0xF3FEU;
+            Resources[0].rMask = 0xF3FEU;
 
             xf86ClaimFixedResources(Resources, pATI->iEntity);
 
@@ -107,54 +96,22 @@ ATIClaimResources
         }
     }
 
-    if (!Active && pATI->SharedAccelerator)
+    if (!Active)
         return;
 
-    /* Claim 8514/A resources */
-    if (pATI->ChipHasSUBSYS_CNTL)
-        xf86ClaimFixedResources(
-            pATI->SharedAccelerator ? res8514Shared : res8514Exclusive,
-            pATI->iEntity);
-
     /* Claim Mach64 sparse I/O resources */
     if ((pATI->Adapter == ATI_ADAPTER_MACH64) &&
         (pATI->CPIODecoding == SPARSE_IO))
     {
-        if (pATI->SharedAccelerator)
-            Resources[0].type = ResShrIoSparse | ResBus;
-        else
-            Resources[0].type = ResExcIoSparse | ResBus;
+        Resources[0].type = ResShrIoSparse | ResBus;
         Resources[0].rBase = pATI->CPIOBase;
         Resources[0].rMask = 0x03FCU;
 
         xf86ClaimFixedResources(Resources, pATI->iEntity);
     }
 
-    if (Active)
-        return;
-
-#else /* AVOID_CPIO */
-
-    if (pATI->SharedAccelerator)
-        return;
-
 #endif /* AVOID_CPIO */
 
-    /* Register unshared relocatable resources for inactive adapters */
-    do
-    {
-        pResources = xf86RegisterResources(pATI->iEntity, NULL, ResExclusive);
-        if (!pResources)
-            return;
-
-        pResources = xf86ReallocatePciResources(pATI->iEntity, pResources);
-    } while (!pResources);
-
-    xf86Msg(X_WARNING,
-        ATI_NAME ":  Unable to register the following resources for inactive"
-        " adapter:\n");
-    xf86PrintResList(1, pResources);
-    xf86FreeResList(pResources);
 }
 
 /*
diff --git a/src/atichip.c b/src/atichip.c
index 09d2cad..7b56bbc 100644
--- a/src/atichip.c
+++ b/src/atichip.c
@@ -122,52 +122,6 @@ const char *ATIChipNames[] =
 const char *ATIFoundryNames[] =
     { "SGS", "NEC", "KCS", "UMC", "TSMC", "5", "6", "UMC" };
 
-#ifndef AVOID_CPIO
-
-/*
- * ATIMach32ChipID --
- *
- * Set variables whose value is dependent upon an 68800's CHIP_ID register.
- */
-void
-ATIMach32ChipID
-(
-    ATIPtr pATI
-)
-{
-    CARD16 IOValue     = inw(CHIP_ID);
-    pATI->ChipType     = GetBits(IOValue, CHIP_CODE_0 | CHIP_CODE_1);
-    pATI->ChipClass    = GetBits(IOValue, CHIP_CLASS);
-    pATI->ChipRevision = GetBits(IOValue, CHIP_REV);
-    pATI->ChipRev      = pATI->ChipRevision;
-    if (IOValue == 0xFFFFU)
-        IOValue = 0;
-    switch (GetBits(IOValue, CHIP_CODE_0 | CHIP_CODE_1))
-    {
-        case OldChipID('A', 'A'):
-            pATI->Chip = ATI_CHIP_68800_3;
-            break;
-
-        case OldChipID('X', 'X'):
-            pATI->Chip = ATI_CHIP_68800_6;
-            break;
-
-        case OldChipID('L', 'X'):
-            pATI->Chip = ATI_CHIP_68800LX;
-            break;
-
-        case OldChipID('A', 'X'):
-            pATI->Chip = ATI_CHIP_68800AX;
-            break;
-
-        default:
-            pATI->Chip = ATI_CHIP_68800;
-            break;
-    }
-}
-
-#endif /* AVOID_CPIO */
-
 /*
  * ATIMach64ChipID --
  *
diff --git a/src/atichip.h b/src/atichip.h
index ee3e0cf..1b7ca2f 100644
--- a/src/atichip.h
+++ b/src/atichip.h
@@ -136,12 +136,6 @@ typedef enum
 
 extern const char *ATIFoundryNames[];
 
-#ifndef AVOID_CPIO
-
-extern void        ATIMach32ChipID(ATIPtr);
-
-#endif /* AVOID_CPIO */
-
 extern void        ATIMach64ChipID(ATIPtr, const CARD16);
 extern ATIChipType ATIChipID(const CARD16, const CARD8);
 
diff --git a/src/atilock.c b/src/atilock.c
index 7b963c1..92293af 100644
--- a/src/atilock.c
+++ b/src/atilock.c
@@ -57,44 +57,7 @@ ATIUnlock
 
 #ifndef AVOID_CPIO
 
-    if (pATI->ChipHasSUBSYS_CNTL)
-    {
-        /* Save register values to be modified */
-        pATI->LockData.clock_sel = inw(CLOCK_SEL);
-        if (pATI->Chip >= ATI_CHIP_68800)
-        {
-            pATI->LockData.misc_options = inw(MISC_OPTIONS);
-            pATI->LockData.mem_bndry = inw(MEM_BNDRY);
-            pATI->LockData.mem_cfg = inw(MEM_CFG);
-        }
-
-        tmp = inw(SUBSYS_STAT) & _8PLANE;
-
-        /* Reset the 8514/A and disable all interrupts */
-        outw(SUBSYS_CNTL, tmp | (GPCTRL_RESET | CHPTEST_NORMAL));
-        outw(SUBSYS_CNTL, tmp | (GPCTRL_ENAB | CHPTEST_NORMAL | RVBLNKFLG |
-            RPICKFLAG | RINVALIDIO | RGPIDLE));
-
-        /* Ensure VGA is enabled */
-        outw(CLOCK_SEL, pATI->LockData.clock_sel &~DISABPASSTHRU);
-        if (pATI->Chip >= ATI_CHIP_68800)
-        {
-            outw(MISC_OPTIONS, pATI->LockData.misc_options &
-                ~(DISABLE_VGA | DISABLE_DAC));
-
-            /* Disable any video memory boundary */
-            outw(MEM_BNDRY, pATI->LockData.mem_bndry &
-                ~(MEM_PAGE_BNDRY | MEM_BNDRY_ENA));
-
-            /* Disable direct video memory aperture */
-            outw(MEM_CFG, pATI->LockData.mem_cfg &
-                ~(MEM_APERT_SEL | MEM_APERT_PAGE | MEM_APERT_LOC));
-        }
-
-        /* Wait for all activity to die down */
-        ProbeWaitIdleEmpty();
-    }
-    else if (pATI->Chip >= ATI_CHIP_88800GXC)
+    if (pATI->Chip >= ATI_CHIP_88800GXC)
 
 #endif /* AVOID_CPIO */
 
@@ -437,7 +400,7 @@ ATILock
 
 #ifndef AVOID_CPIO
 
-    CARD32 tmp, saved_lcd_gen_ctrl = 0, lcd_gen_ctrl = 0;
+    CARD32 saved_lcd_gen_ctrl = 0, lcd_gen_ctrl = 0;
 
 #endif /* AVOID_CPIO */
 
@@ -532,28 +495,7 @@ ATILock
         }
     }
 
-    if (pATI->ChipHasSUBSYS_CNTL)
-    {
-        tmp = inw(SUBSYS_STAT) & _8PLANE;
-
-        /* Reset the 8514/A and disable all interrupts */
-        outw(SUBSYS_CNTL, tmp | (GPCTRL_RESET | CHPTEST_NORMAL));
-        outw(SUBSYS_CNTL, tmp | (GPCTRL_ENAB | CHPTEST_NORMAL | RVBLNKFLG |
-            RPICKFLAG | RINVALIDIO | RGPIDLE));
-
-        /* Restore modified accelerator registers */
-        outw(CLOCK_SEL, pATI->LockData.clock_sel);
-        if (pATI->Chip >= ATI_CHIP_68800)
-        {
-            outw(MISC_OPTIONS, pATI->LockData.misc_options);
-            outw(MEM_BNDRY, pATI->LockData.mem_bndry);
-            outw(MEM_CFG, pATI->LockData.mem_cfg);
-        }
-
-        /* Wait for all activity to die down */
-        ProbeWaitIdleEmpty();
-    }
-    else if (pATI->Chip >= ATI_CHIP_88800GXC)
+    if (pATI->Chip >= ATI_CHIP_88800GXC)
 
 #endif /* AVOID_CPIO */
 
diff --git a/src/atipreinit.c b/src/atipreinit.c
index 047aeed..ff5cc04 100644
--- a/src/atipreinit.c
+++ b/src/atipreinit.c
@@ -465,8 +465,7 @@ ATIPreInit
     pResources = pEntity->resources;
     xfree(pEntity);
     if (!pResources)
-        pResources = xf86RegisterResources(pATI->iEntity, NULL,
-            pATI->SharedAccelerator ? ResShared : ResExclusive);
+        pResources = xf86RegisterResources(pATI->iEntity, NULL, ResShared);
     if (pResources)
     {
         xf86DrvMsg(pScreenInfo->scrnIndex, X_ERROR,
@@ -1491,12 +1490,6 @@ ATIPreInit
             "VGA Wonder registers at I/O port 0x%04lX.\n",
             pATI->CPIO_VGAWonder);
 
-    if (pATI->Coprocessor != ATI_CHIP_NONE)
-        xf86DrvMsg(pScreenInfo->scrnIndex, X_PROBED,
-            "%s graphics accelerator detected,\n with %d kB of coprocessor"
-            " memory.\n",
-            ATIChipNames[pATI->Coprocessor], pATI->VideoRAM);
-
 #endif /* AVOID_CPIO */
 
     xf86DrvMsg(pScreenInfo->scrnIndex, X_PROBED,
@@ -1710,15 +1703,6 @@ ATIPreInit
             ATIUnmapApertures(pScreenInfo->scrnIndex, pATI);
             return FALSE;
         }
-
-        if (pATI->Coprocessor != ATI_CHIP_NONE)
-        {
-            /* Ignore any 8514/A or Mach8 accelerator from this point on */
-            pATI->Adapter = pATI->VGAAdapter;
-
-            /* Accelerator and VGA cannot share memory */
-            pATI->VideoRAM = 0;
-        }
     }
 
 #endif /* AVOID_CPIO */
@@ -2856,12 +2840,6 @@ ATIPreInit
     else
     {
         pATIHW->crtc = ATI_CRTC_VGA;
-#if 0 /* ___NOT_YET___ */
-        if (pATI->ChipHasSUBSYS_CNTL)
-        {
-        }
-        else
-#endif
         if ((pATI->Chip >= ATI_CHIP_88800GXC) &&
             (pATI->LockData.crtc_gen_cntl & CRTC_EXT_DISP_EN))
         {
diff --git a/src/atiprint.c b/src/atiprint.c
index 11cf6b7..247252d 100644
--- a/src/atiprint.c
+++ b/src/atiprint.c
@@ -474,31 +474,6 @@ ATIPrintRegisters
                 "ATI extended VGA", 0);
     }
 
-    if (pATI->ChipHasSUBSYS_CNTL)
-    {
-        xf86ErrorFVerb(4, "\n 8514/A register values:");
-        for (Index = 0x02E8U;  Index <= 0x0FEE8;  Index += 0x0400U)
-        {
-            if (!((Index - 0x02E8U) & 0x0C00U))
-                xf86ErrorFVerb(4, "\n 0x%04X: ", Index);
-            xf86ErrorFVerb(4, " %04X", inw(Index));
-        }
-
-        if (pATI->Adapter >= ATI_ADAPTER_MACH8)
-        {
-            xf86ErrorFVerb(4, "\n\n Mach8/Mach32 register values:");
-            for (Index = 0x02EEU;  Index <= 0x0FEEE;  Index += 0x0400U)
-            {
-                if (!((Index - 0x02EEU) & 0x0C00U))
-                    xf86ErrorFVerb(4, "\n 0x%04X: ", Index);
-                xf86ErrorFVerb(4, " %04X", inw(Index));
-            }
-        }
-
-        xf86ErrorFVerb(4, "\n");
-    }
-    else
-
 #endif /* AVOID_CPIO */
 
     if (pATI->Chip == ATI_CHIP_264LT)
diff --git a/src/atiprobe.c b/src/atiprobe.c
index ff709d3..29ec544 100644
--- a/src/atiprobe.c
+++ b/src/atiprobe.c
@@ -84,9 +84,6 @@ typedef struct _ATIGDev
  * Definitions for I/O conflict avoidance.
  */
 #define LongPort(_Port) GetBits(_Port, PCIGETIO(SPARSE_IO_BASE))
-#define DetectedVGA    (1 << 0)
-#define Detected8514A  (1 << 1)
-#define DetectedMach64 (1 << 2)
 #define Allowed        (1 << 3)
 #define DoProbe        (1 << 4)
 typedef struct
@@ -196,56 +193,6 @@ ATICheckSparseIOBases
 }
 
 /*
- * ATIVGAProbe --
- *
- * This function looks for an IBM standard VGA, or clone, and sets
- * pATI->VGAAdapter if one is found.
- */
-static ATIPtr
-ATIVGAProbe
-(
-    ATIPtr pVGA
-)
-{
-    CARD8 IOValue1, IOValue2, IOValue3;
-
-    if (!pVGA)
-        pVGA = (ATIPtr)xnfcalloc(1, SizeOf(ATIRec));
-
-    /*
-     * VGA has one more attribute register than EGA.  See if it can be read and
-     * written.  Note that the CRTC registers are not used here, so there's no
-     * need to unlock them.
-     */
-    ATISetVGAIOBase(pVGA, inb(R_GENMO));
-    (void)inb(GENS1(pVGA->CPIO_VGABase));
-    IOValue1 = inb(ATTRX);
-    (void)inb(GENS1(pVGA->CPIO_VGABase));
-    IOValue2 = GetReg(ATTRX, 0x14U | 0x20U);
-    outb(ATTRX, IOValue2 ^ 0x0FU);
-    IOValue3 = GetReg(ATTRX, 0x14U | 0x20U);
-    outb(ATTRX, IOValue2);
-    outb(ATTRX, IOValue1);
-    (void)inb(GENS1(pVGA->CPIO_VGABase));
-    if (IOValue3 == (IOValue2 ^ 0x0FU))
-    {
-        /* VGA device detected */
-        if (pVGA->Chip == ATI_CHIP_NONE)
-            pVGA->Chip = ATI_CHIP_VGA;
-        if (pVGA->VGAAdapter == ATI_ADAPTER_NONE)
-            pVGA->VGAAdapter = ATI_ADAPTER_VGA;
-        if (pVGA->Adapter == ATI_ADAPTER_NONE)
-            pVGA->Adapter = ATI_ADAPTER_VGA;
-    }
-    else
-    {
-        pVGA->VGAAdapter = ATI_ADAPTER_NONE;
-    }
-
-    return pVGA;
-}
-
-/*
  * ATIVGAWonderProbe --
  *
  * This function determines if ATI extended VGA registers can be accessed
@@ -257,7 +204,6 @@ ATIVGAWonderProbe
 (
     pciVideoPtr pVideo,
     ATIPtr      pATI,
-    ATIPtr      p8514,
     CARD8       *ProbeFlags
 )
 {
@@ -274,24 +220,6 @@ ATIVGAWonderProbe
             pATI->CPIO_VGAWonder = 0;
             break;
 
-        case Detected8514A:
-            xf86Msg(X_WARNING,
-                ATI_NAME ":  Expected VGA Wonder capability could not be"
-                " detected at I/O port 0x%04lX because it would conflict with"
-                " a %s %s.\n", pATI->CPIO_VGAWonder,
-                ATIBusNames[p8514->BusType], ATIAdapterNames[p8514->Adapter]);
-            pATI->CPIO_VGAWonder = 0;
-            break;
-
-        case DetectedMach64:
-            xf86Msg(X_WARNING,
-                ATI_NAME ":  Expected VGA Wonder capability could not be"
-                " detected at I/O port 0x%04lX because it would conflict with"
-                " a Mach64.\n", pATI->CPIO_VGAWonder);
-            pATI->CPIO_VGAWonder = 0;
-            break;
-
-        case DetectedVGA:
         default:                /* Must be DoProbe */
             if (pVideo && !xf86IsPrimaryPci(pVideo) &&
                 (pATI->Chip <= ATI_CHIP_88800GXD))
@@ -340,149 +268,6 @@ ATIVGAWonderProbe
     }
 }
 
-/*
- * ATI8514Probe --
- *
- * This function looks for an 8514/A compatible and returns an ATIRec if one is
- * found.  The function also determines whether or not the detected 8514/A
- * compatible device is actually a Mach8 or Mach32, and sets pATI->Adapter
- * accordingly.
- */
-static ATIPtr
-ATI8514Probe
-(
-    pciVideoPtr pVideo
-)
-{
-    ATIPtr pATI = NULL;
-    CARD16 IOValue1, IOValue2;
-
-    /*
-     * Save register value to be modified, just in case there is no 8514/A
-     * compatible accelerator.  Note that, in more ways than one,
-     * SUBSYS_STAT == SUBSYS_CNTL.
-     */
-    IOValue1 = inw(SUBSYS_STAT);
-    IOValue2 = IOValue1 & _8PLANE;
-
-    /* Reset any 8514/A compatible adapter that might be present */
-    outw(SUBSYS_CNTL, IOValue2 | (GPCTRL_RESET | CHPTEST_NORMAL));
-    outw(SUBSYS_CNTL, IOValue2 | (GPCTRL_ENAB | CHPTEST_NORMAL |
-        RVBLNKFLG | RPICKFLAG | RINVALIDIO | RGPIDLE));
-
-    /* Probe for an 8514/A compatible */
-    IOValue2 = inw(ERR_TERM);
-    outw(ERR_TERM, 0x5A5AU);
-    ProbeWaitIdleEmpty();
-    if (inw(ERR_TERM) == 0x5A5AU)
-    {
-        outw(ERR_TERM, 0x2525U);
-        if (inw(ERR_TERM) == 0x2525U)
-        {
-            pATI = (ATIPtr)xnfcalloc(1, SizeOf(ATIRec));
-            pATI->Adapter = ATI_ADAPTER_8514A;
-            pATI->ChipHasSUBSYS_CNTL = TRUE;
-            pATI->PCIInfo = pVideo;
-        }
-    }
-    outw(ERR_TERM, IOValue2);
-
-    /* Restore register value clobbered by 8514/A reset attempt */
-    if (!pATI)
-    {
-        outw(SUBSYS_CNTL, IOValue1);
-        return NULL;
-    }
-
-    /* Ensure any Mach8 or Mach32 is not in 8514/A emulation mode */
-    IOValue1 = inw(CLOCK_SEL);
-    outw(CLOCK_SEL, IOValue1);
-    ProbeWaitIdleEmpty();
-
-    IOValue1 = IOValue2 = inw(ROM_ADDR_1);
-    outw(ROM_ADDR_1, 0x5555U);
-    ProbeWaitIdleEmpty();
-    if (inw(ROM_ADDR_1) == 0x5555U)
-    {
-        outw(ROM_ADDR_1, 0x2A2AU);
-        ProbeWaitIdleEmpty();
-        if (inw(ROM_ADDR_1) == 0x2A2AU)
-            pATI->Adapter = ATI_ADAPTER_MACH8;
-    }
-    outw(ROM_ADDR_1, IOValue1);
-
-    if (pATI->Adapter == ATI_ADAPTER_MACH8)
-    {
-        /* A Mach8 or Mach32 has been detected */
-        IOValue1 = inw(READ_SRC_X);
-        outw(DESTX_DIASTP, 0xAAAAU);
-        ProbeWaitIdleEmpty();
-        if (inw(READ_SRC_X) == 0x02AAU)
-            pATI->Adapter = ATI_ADAPTER_MACH32;
-
-        outw(DESTX_DIASTP, 0x5555U);
-        ProbeWaitIdleEmpty();
-        if (inw(READ_SRC_X) == 0x0555U)
-        {
-            if (pATI->Adapter != ATI_ADAPTER_MACH32)
-                pATI->Adapter = ATI_ADAPTER_8514A;
-        }
-        else
-        {
-            if (pATI->Adapter != ATI_ADAPTER_MACH8)
-                pATI->Adapter = ATI_ADAPTER_8514A;
-        }
-        outw(DESTX_DIASTP, IOValue1);
-    }
-
-    switch (pATI->Adapter)
-    {
-        case ATI_ADAPTER_8514A:
-            pATI->Coprocessor = ATI_CHIP_8514A;
-            IOValue1 = inb(EXT_CONFIG_3);
-            outb(EXT_CONFIG_3, IOValue1 & 0x0FU);
-            if (!(inb(EXT_CONFIG_3) & 0xF0U))
-            {
-                outb(EXT_CONFIG_3, IOValue1 | 0xF0U);
-                if ((inb(EXT_CONFIG_3) & 0xF0U) == 0xF0U)
-                    pATI->Coprocessor = ATI_CHIP_CT480;
-            }
-            outb(EXT_CONFIG_3, IOValue1);
-            break;
-
-        case ATI_ADAPTER_MACH8:
-            pATI->Coprocessor = ATI_CHIP_38800_1;
-            if (inw(CONFIG_STATUS_1) & MC_BUS)
-                pATI->BusType = ATI_BUS_MCA16;
-            break;
-
-        case ATI_ADAPTER_MACH32:
-            IOValue1 = inw(CONFIG_STATUS_1);
-            pATI->BusType = GetBits(IOValue1, BUS_TYPE);
-            pATI->BIOSBase = 0x000C0000U +
-                (GetBits(IOValue2, BIOS_BASE_SEGMENT) << 11);
-            if (!(IOValue1 & (_8514_ONLY | CHIP_DIS)))
-            {
-                pATI->VGAAdapter = ATI_ADAPTER_MACH32;
-                if ((xf86ReadBIOS(pATI->BIOSBase, 0x10U,
-                         (pointer)(&pATI->CPIO_VGAWonder),
-                         SizeOf(pATI->CPIO_VGAWonder)) <
-                         SizeOf(pATI->CPIO_VGAWonder)) ||
-                    !(pATI->CPIO_VGAWonder &= SPARSE_IO_PORT))
-                    pATI->CPIO_VGAWonder = 0x01CEU;
-                pATI->VGAOffset = 0x80U;
-            }
-
-            ATIMach32ChipID(pATI);
-            break;
-
-        default:
-            break;
-    }
-
-    return pATI;
-}
-
 #endif /* AVOID_CPIO */
 
 /*
@@ -718,144 +503,17 @@ ATIMach64Probe
     return pATI;
 }
 
-/*
- * ATIAssignVGA --
- *
- * This function is called to associate a VGA interface with an accelerator.
- * This is done by temporarily configuring the accelerator to route VGA RAMDAC
- * I/O through the accelerator's RAMDAC.  A value is then written through the
- * VGA DAC ports and a check is made to see if the same value shows up on the
- * accelerator side.
- */
 static void
 ATIAssignVGA
 (
     pciVideoPtr pVideo,
-    ATIPtr      *ppVGA,
     ATIPtr      pATI,
-    ATIPtr      p8514,
     CARD8       *ProbeFlags
 )
 {
-    ATIPtr pVGA = *ppVGA;
-    CARD8  OldDACMask;
-
-    /* Assume unassignable VGA */
-    pATI->VGAAdapter = ATI_ADAPTER_NONE;
-
-    /* If no assignable VGA, return now */
-    if ((pATI != pVGA) && (!pVGA || (pVGA->Adapter > ATI_ADAPTER_VGA)))
-        return;
-
-    switch (pATI->Adapter)
-    {
-        case ATI_ADAPTER_8514A:
-            {
-                /*
-                 * Assumption:  Bit DISABPASSTHRU in ADVFUNC_CNTL is already
-                 *              off.
-                 */
-                OldDACMask = inb(VGA_DAC_MASK);
-
-                if (inb(IBM_DAC_MASK) == OldDACMask)
-                {
-                    outb(VGA_DAC_MASK, 0xA5U);
-                    if (inb(IBM_DAC_MASK) == 0xA5U)
-                        pATI->VGAAdapter = ATI_ADAPTER_VGA;
-                    outb(VGA_DAC_MASK, OldDACMask);
-                }
-            }
-            break;
-
-        case ATI_ADAPTER_MACH8:
-            {
-                CARD16 ClockSel = inw(CLOCK_SEL);
-
-                if (ClockSel & DISABPASSTHRU)
-                    outw(CLOCK_SEL, ClockSel & ~DISABPASSTHRU);
-
-                ProbeWaitIdleEmpty();
-
-                OldDACMask = inb(VGA_DAC_MASK);
-
-                if (inb(IBM_DAC_MASK) == OldDACMask)
-                {
-                    outb(VGA_DAC_MASK, 0xA5U);
-                    if (inb(IBM_DAC_MASK) == 0xA5U)
-                        pATI->VGAAdapter = ATI_ADAPTER_VGA;
-                    outb(VGA_DAC_MASK, OldDACMask);
-                }
-
-                if (ClockSel & DISABPASSTHRU)
-                    outw(CLOCK_SEL, ClockSel);
-            }
-            break;
-
-        case ATI_ADAPTER_MACH32:
-            {
-                CARD16 ClockSel    = inw(CLOCK_SEL),
-                       MiscOptions = inw(MISC_OPTIONS);
-
-                if (ClockSel & DISABPASSTHRU)
-                    outw(CLOCK_SEL, ClockSel & ~DISABPASSTHRU);
-                if (MiscOptions & (DISABLE_VGA | DISABLE_DAC))
-                    outw(MISC_OPTIONS,
-                        MiscOptions & ~(DISABLE_VGA | DISABLE_DAC));
-
-                ProbeWaitIdleEmpty();
-
-                OldDACMask = inb(VGA_DAC_MASK);
-
-                if (inb(IBM_DAC_MASK) == OldDACMask)
-                {
-                    outb(VGA_DAC_MASK, 0xA5U);
-                    if (inb(IBM_DAC_MASK) == 0xA5U)
-                        pATI->VGAAdapter = ATI_ADAPTER_MACH32;
-                    outb(VGA_DAC_MASK, OldDACMask);
-                }
-
-                if (ClockSel & DISABPASSTHRU)
-                    outw(CLOCK_SEL, ClockSel);
-                if (MiscOptions & (DISABLE_VGA | DISABLE_DAC))
-                    outw(MISC_OPTIONS, MiscOptions);
-            }
-            break;
-
-        case ATI_ADAPTER_MACH64:
-            {
-                CARD32 DACCntl = inr(DAC_CNTL);
-
-                if (!(DACCntl & DAC_VGA_ADR_EN))
-                    outr(DAC_CNTL, DACCntl | DAC_VGA_ADR_EN);
-
-                OldDACMask = inb(VGA_DAC_MASK);
-
-                if (in8(M64_DAC_MASK) == OldDACMask)
-                {
-                    outb(VGA_DAC_MASK, 0xA5U);
-                    if (in8(M64_DAC_MASK) == 0xA5U)
-                        pATI->VGAAdapter = ATI_ADAPTER_MACH64;
-                    outb(VGA_DAC_MASK, OldDACMask);
-                }
-
-                if (!(DACCntl & DAC_VGA_ADR_EN))
-                    outr(DAC_CNTL, DACCntl);
-            }
-            break;
-
-        default:
-            break;
-    }
-
-    if (pATI->VGAAdapter == ATI_ADAPTER_NONE)
-    {
-        pATI->CPIO_VGAWonder = 0;
-        return;
-    }
-
     if (pATI->CPIO_VGAWonder)
     {
-        ATIVGAWonderProbe(pVideo, pATI, p8514, ProbeFlags);
+        ATIVGAWonderProbe(pVideo, pATI, ProbeFlags);
         if (!pATI->CPIO_VGAWonder)
         {
             /*
@@ -865,21 +523,9 @@ ATIAssignVGA
              * of I/O through the bus tree.
              */
             pATI->CPIO_VGAWonder = GRAX;
-            ATIVGAWonderProbe(pVideo, pATI, p8514, ProbeFlags);
+            ATIVGAWonderProbe(pVideo, pATI, ProbeFlags);
         }
     }
-
-    if (pATI == pVGA)
-    {
-        pATI->SharedVGA = TRUE;
-        return;
-    }
-
-    /* Assign the VGA to this adapter */
-    xfree(pVGA);
-    *ppVGA = pATI;
-
-    xf86MsgVerb(X_INFO, 3, ATI_NAME ":  VGA assigned to this adapter.\n");
 }
 
 /*
@@ -892,16 +538,10 @@ static void
 ATIFindVGA
 (
     pciVideoPtr pVideo,
-    ATIPtr      *ppVGA,
-    ATIPtr      *ppATI,
-    ATIPtr      p8514,
+    ATIPtr      pATI,
     CARD8       *ProbeFlags
 )
 {
-    ATIPtr pATI = *ppATI;
-
-    if (!*ppVGA)
-    {
         /*
          * An ATI PCI adapter has been detected at this point, and its VGA, if
          * any, is shareable.  Ensure the VGA isn't in sleep mode.
@@ -910,14 +550,7 @@ ATIFindVGA
         outb(GENVS, 0x01U);
         outb(GENENA, 0x0EU);
 
-        pATI = ATIVGAProbe(pATI);
-        if (pATI->VGAAdapter == ATI_ADAPTER_NONE)
-            return;
-
-        ppVGA = ppATI;
-    }
-
-    ATIAssignVGA(pVideo, ppVGA, pATI, p8514, ProbeFlags);
+    ATIAssignVGA(pVideo, pATI, ProbeFlags);
 }
 
 #endif /* AVOID_CPIO */
@@ -954,22 +587,12 @@ ATIProbe
 
 #ifndef AVOID_CPIO
 
-    ATIPtr                 pVGA = NULL, p8514 = NULL;
     pciConfigPtr           *xf86PciInfo = xf86GetPciConfigInfo();
     PortPtr                PCIPorts = NULL;
     int                    nPCIPort = 0;
-    CARD8                  fChipsets[ATI_CHIPSET_MAX];
     static const IOADDRESS Mach64SparseIOBases[] = {0x02ECU, 0x01CCU, 0x01C8U};
     CARD8                  ProbeFlags[LongPort(SPARSE_IO_BASE) + 1];
 
-    unsigned long          BIOSBase;
-    static const CARD8     ATISignature[] = " 761295520";
-#   define                 SignatureSize 10
-#   define                 PrefixSize    0x50U
-#   define                 BIOSSignature 0x30U
-    CARD8                  BIOS[PrefixSize];
-#   define                 BIOSWord(_n)  (BIOS[_n] | (BIOS[(_n) + 1] << 8))
-
 #endif /* AVOID_CPIO */
 
 #   define                 AddAdapter(_p)                                  \
@@ -981,12 +604,6 @@ ATIProbe
         (_p)->iEntity = -2;                                                \
     } while (0)
 
-#ifndef AVOID_CPIO
-
-    (void)memset(fChipsets, FALSE, SizeOf(fChipsets));
-
-#endif /* AVOID_CPIO */
-
     if (!(flags & PROBE_DETECT))
     {
         /*
@@ -1031,13 +648,6 @@ ATIProbe
                 xf86MsgVerb(X_INFO, 3,
                     ATI_NAME ":  Candidate \"Device\" section \"%s\".\n",
                     pGDev->identifier);
-
-#ifndef AVOID_CPIO
-
-                fChipsets[Chipset] = TRUE;
-
-#endif /* AVOID_CPIO */
-
             }
 
             xfree(GDevs);
@@ -1156,116 +766,6 @@ ATIProbe
 
 #ifndef AVOID_CPIO
 
-            /*
-             * This is the second pass through PCI configuration space.  Much
-             * of this is verbiage to deal with potential situations that are
-             * very unlikely to occur in practice.
-             *
-             * First, look for non-ATI shareable VGA's.  For now, these must
-             * the primary device.
-             */
-            if (ATICheckSparseIOBases(NULL, ProbeFlags, ATTRX, 16, TRUE) ==
-                DoProbe)
-            {
-                for (i = 0;  (pVideo = xf86PciVideoInfo[i++]);  )
-                {
-                    if ((pVideo->vendor == PCI_VENDOR_ATI) ||
-                        !xf86IsPrimaryPci(pVideo))
-                        continue;
-
-                    if (!xf86CheckPciSlot(pVideo->bus,
-                                          pVideo->device,
-                                          pVideo->func))
-                        continue;
-
-                    xf86SetPciVideo(pVideo, MEM_IO);
-
-                    pATI = ATIVGAProbe(NULL);
-                    if (pATI->Adapter == ATI_ADAPTER_NONE)
-                    {
-                        xfree(pATI);
-                        xf86Msg(X_WARNING,
-                            ATI_NAME ":  PCI/AGP VGA compatible in slot"
-                            " %d:%d:%d could not be detected!\n",
-                            pVideo->bus, pVideo->device, pVideo->func);
-                    }
-                    else
-                    {
-                        sprintf(Identifier,
-                            "Shared non-ATI VGA in PCI/AGP slot %d:%d:%d",
-                            pVideo->bus, pVideo->device, pVideo->func);
-                        xf86MsgVerb(X_INFO, 3, ATI_NAME ":  %s detected.\n",
-                            Identifier);
-                        AddAdapter(pATI);
-                        pATI->SharedVGA = TRUE;
-                        pATI->BusType = ATI_BUS_PCI;
-                        pATI->PCIInfo = pVideo;
-                    }
-
-                    xf86SetPciVideo(NULL, NONE);
-                }
-            }
-
-            /* Next, look for PCI Mach32's */
-            for (i = 0;  (pVideo = xf86PciVideoInfo[i++]);  )
-            {
-                if ((pVideo->vendor != PCI_VENDOR_ATI) ||
-                    (pVideo->chipType != PCI_CHIP_MACH32))
-                    continue;
-
-                switch (ATICheckSparseIOBases(pVideo, ProbeFlags,
-                    0x02E8U, 8, TRUE))
-                {
-                    case 0:
-                        xf86Msg(X_WARNING,
-                            ATI_NAME ":  PCI Mach32 in slot %d:%d:%d will not"
-                            " be enabled\n because it conflicts with a"
-                            " non-video PCI/AGP device.\n",
-                            pVideo->bus, pVideo->device, pVideo->func);
-                        break;
-
-                    default:    /* Must be DoProbe */
-                        if (!xf86CheckPciSlot(pVideo->bus,
-                                              pVideo->device,
-                                              pVideo->func))
-                            continue;
-
-                        xf86SetPciVideo(pVideo, MEM_IO);
-
-                        if (!(pATI = ATI8514Probe(pVideo)))
-                        {
-                            xf86Msg(X_WARNING,
-                                ATI_NAME ":  PCI Mach32 in slot %d:%d:%d could"
-                                " not be detected!\n",
-                                pVideo->bus, pVideo->device, pVideo->func);
-                        }
-                        else
-                        {
-                            sprintf(Identifier,
-                                "Shared 8514/A in PCI slot %d:%d:%d",
-                                pVideo->bus, pVideo->device, pVideo->func);
-                            xf86MsgVerb(X_INFO, 3,
-                                ATI_NAME ":  %s detected.\n", Identifier);
-                            if (pATI->Adapter != ATI_ADAPTER_MACH32)
-                                xf86Msg(X_WARNING,
-                                    ATI_NAME ":  PCI Mach32 in slot %d:%d:%d"
-                                    " could only be detected as an %s!\n",
-                                    pVideo->bus, pVideo->device, pVideo->func,
-                                    ATIAdapterNames[pATI->Adapter]);
-
-                            AddAdapter(pATI);
-                            pATI->SharedAccelerator = TRUE;
-
-                            if ((pATI->VGAAdapter != ATI_ADAPTER_NONE) ||
-                                (pATI->Coprocessor != ATI_CHIP_NONE))
-                                ATIFindVGA(pVideo, &pVGA, &pATI, p8514,
-                                    ProbeFlags);
-                        }
-                        xf86SetPciVideo(NULL, NONE);
-                        break;
-                }
-            }
-
             /* Next, look for sparse I/O Mach64's */
             for (i = 0;  (pVideo = xf86PciVideoInfo[i++]);  )
             {
@@ -1338,12 +838,10 @@ ATIProbe
                                 " detected.\n", Identifier,
                                 Mach64SparseIOBases[j]);
                             AddAdapter(pATI);
-                            pATI->SharedAccelerator = TRUE;
                             pATI->PCIInfo = pVideo;
 
                             if (pATI->VGAAdapter != ATI_ADAPTER_NONE)
-                                ATIFindVGA(pVideo, &pVGA, &pATI, p8514,
-                                    ProbeFlags);
+                                ATIFindVGA(pVideo, pATI, ProbeFlags);
                         }
 
                         xf86SetPciVideo(NULL, NONE);
@@ -1387,7 +885,6 @@ ATIProbe
                         ATI_NAME ":  %s with Block 0 base 0x%08lX detected.\n",
                         Identifier, pATI->Block0Base);
                     AddAdapter(pATI);
-                    pATI->SharedAccelerator = TRUE;
                     pATI->PCIInfo = pVideo;
                 }
                 else
@@ -1456,12 +953,11 @@ ATIProbe
                 xf86MsgVerb(X_INFO, 3, ATI_NAME ":  %s detected.\n",
                     Identifier);
                 AddAdapter(pATI);
-                pATI->SharedAccelerator = TRUE;
 
 #ifndef AVOID_CPIO
 
                 if (pATI->VGAAdapter != ATI_ADAPTER_NONE)
-                    ATIFindVGA(pVideo, &pVGA, &pATI, p8514, ProbeFlags);
+                    ATIFindVGA(pVideo, pATI, ProbeFlags);
 
 #endif /* AVOID_CPIO */
 
@@ -1482,176 +978,6 @@ ATIProbe
         }
     }
 
-#ifndef AVOID_CPIO
-
-    /*
-     * At this point, if there's a non-shareable VGA with its own framebuffer,
-     * find out if it's an ATI VGA Wonder.
-     */
-    do
-    {
-        if (!nATIGDev || !pVGA || (pVGA->VGAAdapter > ATI_ADAPTER_VGA))
-            break;
-
-        /* If it has not been assigned to a coprocessor, keep track of it */
-        if (pVGA->Coprocessor == ATI_CHIP_NONE)
-            AddAdapter(pVGA);
-
-        /*
-         * A VGA should have installed its int 10 vector.  Use that to find the
-         * VGA BIOS.  If this fails, scan all legacy BIOS segments, in 512-byte
-         * increments.
-         */
-        if (xf86ReadBIOS(0U, 0x42U, BIOS, 2) != 2)
-            goto NoVGAWonder;
-
-        pATI = NULL;
-        BIOSBase = 0;
-        if (!(BIOS[0] & 0x1FU)) /* Otherwise there's no 512-byte alignment */
-            BIOSBase = ((BIOS[1] << 8) | BIOS[0]) << 4;
-
-        /* Look for its BIOS */
-        for(;  ;  BIOSBase += 0x00000200U)
-        {
-            if (!BIOSBase)
-                goto SkipBiosSegment;
-
-            if (BIOSBase >= 0x000F8000U)
-                goto NoVGAWonder;
-
-            /* Skip over those that are already known */
-            for (i = 0;  i < nATIPtr;  i++)
-                if (ATIPtrs[i]->BIOSBase == BIOSBase)
-                    goto SkipBiosSegment;
-
-            /* Get first 80 bytes of video BIOS */
-            if (xf86ReadBIOS(BIOSBase, 0, BIOS, SizeOf(BIOS)) !=
-                SizeOf(BIOS))
-                goto NoVGAWonder;
-
-            if ((BIOS[0x00U] != 0x55U) || (BIOS[0x01U] != 0xAAU))
-                goto SkipBiosSegment;
-
-            if ((BIOS[0x1EU] == 'I') &&
-                (BIOS[0x1FU] == 'B') &&
-                (BIOS[0x20U] == 'M'))
-                break;
-
-            /* XXX Should PCI BIOS signature be checked for here ? */
-            if ((BIOS[0x20U] == 'P') &&
-                (BIOS[0x21U] == 'C') &&
-                (BIOS[0x22U] == 'I'))
-                break;
-
-    SkipBiosSegment:
-            if (pATI)
-                continue;
-
-            pATI = pVGA;
-            BIOSBase = 0x000C0000U - 0x00000200U;
-        }
-
-        pVGA->BIOSBase = BIOSBase;
-
-        /* Look for the ATI signature string */
-        if (memcmp(BIOS + BIOSSignature, ATISignature, SignatureSize))
-            break;
-
-        if (BIOS[0x40U] != '3')
-            break;
-
-        switch (BIOS[0x41U])
-        {
-            case '1':
-                /* This is a Mach8 or VGA Wonder adapter of some kind */
-                if ((BIOS[0x43U] >= '1') && (BIOS[0x43U] <= '6'))
-                    pVGA->Chip = BIOS[0x43U] - ('1' - ATI_CHIP_18800);
-
-                switch (BIOS[0x43U])
-                {
-                    case '1':   /* ATI_CHIP_18800 */
-                        pVGA->VGAOffset = 0xB0U;
-                        pVGA->VGAAdapter = ATI_ADAPTER_V3;
-                        break;
-
-                    case '2':   /* ATI_CHIP_18800_1 */
-                        pVGA->VGAOffset = 0xB0U;
-                        if (BIOS[0x42U] & 0x10U)
-                            pVGA->VGAAdapter = ATI_ADAPTER_V5;
-                        else
-                            pVGA->VGAAdapter = ATI_ADAPTER_V4;
-                        break;
-
-                    case '3':   /* ATI_CHIP_28800_2 */
-                    case '4':   /* ATI_CHIP_28800_4 */
-                    case '5':   /* ATI_CHIP_28800_5 */
-                    case '6':   /* ATI_CHIP_28800_6 */
-                        pVGA->VGAOffset = 0xA0U;
-                        if (BIOS[0x44U] & 0x80U)
-                            pVGA->VGAAdapter = ATI_ADAPTER_XL;
-                        else
-                            pVGA->VGAAdapter = ATI_ADAPTER_PLUS;
-                        break;
-
-                    case 'a':   /* A crippled Mach32 */
-                    case 'b':
-                    case 'c':
-                        pVGA->VGAOffset = 0x80U;
-                        pVGA->VGAAdapter = ATI_ADAPTER_NONISA;
-                        ATIMach32ChipID(pVGA);
-                        ProbeWaitIdleEmpty();
-                        if (inw(SUBSYS_STAT) != (CARD16)(-1))
-                            pVGA->ChipHasSUBSYS_CNTL = TRUE;
-                        break;
-#if 0
-                    case ' ':   /* A crippled Mach64 */
-                        pVGA->VGAOffset = 0x80U;
-                        pVGA->VGAAdapter = ATI_ADAPTER_NONISA;
-                        ATIMach64ChipID(pVGA, 0);
-                        break;
-#endif
-                    default:
-                        break;
-                }
-
-                if (pVGA->VGAAdapter == ATI_ADAPTER_NONE)
-                    break;
-
-                /* Set VGA Wonder I/O port */
-                pVGA->CPIO_VGAWonder = BIOSWord(0x10U) & SPARSE_IO_PORT;
-                if (!pVGA->CPIO_VGAWonder)
-                    pVGA->CPIO_VGAWonder = 0x01CEU;
-
-                ATIVGAWonderProbe(NULL, pVGA, p8514, ProbeFlags);
-                break;
-#if 0
-            case '2':
-                pVGA->VGAOffset = 0xB0U;            /* Presumably */
-                pVGA->VGAAdapter = ATI_ADAPTER_EGA_PLUS;
-                break;
-
-            case '3':
-                pVGA->VGAOffset = 0xB0U;            /* Presumably */
-                pVGA->VGAAdapter = ATI_ADAPTER_BASIC;
-                break;
-
-            case '?':           /* A crippled Mach64 */
-                pVGA->VGAAdapter = ATI_ADAPTER_NONISA;
-                ATIMach64ChipID(pVGA, 0);
-                break;
-#endif
-            default:
-                break;
-        }
-
-        if (pVGA->Adapter <= ATI_ADAPTER_VGA)
-            pVGA->Adapter = pVGA->VGAAdapter;
-
-NoVGAWonder:;
-    } while (0);
-
-#endif /* AVOID_CPIO */
-
     /*
      * Re-order list of detected devices so that the primary device is before
      * any other PCI device.
diff --git a/src/atistruct.h b/src/atistruct.h
index 16bb4fa..fbb2391 100644
--- a/src/atistruct.h
+++ b/src/atistruct.h
@@ -238,12 +238,6 @@ typedef struct _ATIRec
     CARD8 Chip;
     CARD8 ChipClass, ChipRevision, ChipRev, ChipVersion, ChipFoundry;
 
-#ifndef AVOID_CPIO
-
-    CARD8 Coprocessor, ChipHasSUBSYS_CNTL;
-
-#endif /* AVOID_CPIO */
-
     /*
      * Processor I/O decoding definitions.
      */
@@ -285,11 +279,9 @@ typedef struct _ATIRec
      */
     pciVideoPtr PCIInfo;
     CARD8 BusType;
-    CARD8 SharedAccelerator;
 
 #ifndef AVOID_CPIO
 
-    CARD8 SharedVGA;
     resRange VGAWonderResources[2];
 
 #endif /* AVOID_CPIO */