Banked memory is no longer needed.

- (pATI->BankInfo.BankSize = 0) in all cases, cull pATI->BankInfo

- only keep the minimal pATIHW.SetBank interface for save/restore

- clean ATISwap() a little, (NewHW.crtc != ATI_CRTC_VGA)

- (UseSmallApertures == TRUE) <=> pATI->VGAAdapter

12 files changed, 26 insertions, 378 deletions

diff --git a/src/atibank.c b/src/atibank.c
index c53cc54..514a414 100644
--- a/src/atibank.c
+++ b/src/atibank.c
@@ -32,93 +32,6 @@
 #ifndef AVOID_CPIO
 
 /*
- * ATI VGA Wonder V4 and V5 adapters use an ATI 18800-1 chip.  Bank selection
- * is done with ATI extended VGA register index 0xB2.  The format is:
- *
- *   0xE0 - Read bank select bits 0x07
- *   0x1E - Write bank select bits 0x0F
- *   0x01 - Read bank select bit 0x08.
- */
-
-/*
- * ATIV4V5SetBank --
- *
- * Set an ATI 18800-1's read and write bank numbers.
- */
-void
-ATIV4V5SetBank
-(
-    ATIPtr       pATI,
-    unsigned int iBank
-)
-{
-    pATI->B2Reg = SetBits(iBank, 0x1EU) | SetBits(iBank, 0xE0U) |
-        SetBits(GetBits(iBank, 0x08U), 0x01U);
-    ATIPutExtReg(0xB2U, pATI->B2Reg);
-}
-
-/*
- * ATIV4V5SetRead --
- *
- * Set an ATI 18800-1's read bank number.
- */
-int
-ATIV4V5SetRead
-(
-    ScreenPtr    pScreen,
-    unsigned int iBank
-)
-{
-    ATIPtr pATI  = ATIPTR(XF86SCRNINFO(pScreen));
-    CARD8  B2Reg = (pATI->B2Reg & 0x1EU) | SetBits(iBank, 0xE0U) |
-                   SetBits(GetBits(iBank, 0x08U), 0x01U);
-
-    if (B2Reg != pATI->B2Reg)
-    {
-        ATIPutExtReg(0xB2U, B2Reg);
-        pATI->B2Reg = B2Reg;
-    }
-
-    return 0;
-}
-
-/*
- * ATIV4V5SetWrite --
- *
- * Set an ATI 18800-1's write bank number.
- */
-int
-ATIV4V5SetWrite
-(
-    ScreenPtr    pScreen,
-    unsigned int iBank
-)
-{
-    ATIPtr pATI = ATIPTR(XF86SCRNINFO(pScreen));
-    CARD8  B2Reg = (pATI->B2Reg & 0xE1U) | SetBits(iBank, 0x1EU);
-
-    if (B2Reg != pATI->B2Reg)
-    {
-        ATIPutExtReg(0xB2U, B2Reg);
-        pATI->B2Reg = B2Reg;
-    }
-    return 0;
-}
-
-/*
- * In addition to ATI extended register index 0xB2, 28800's, 68800's and
- * 88800's define banking bits in bits 0x0F of ATI extended VGA register index
- * 0xAE.  These are only needed for adapters with more than 1MB of video
- * memory, and it is questionable whether or not they are actually implemented
- * by 28800's and 88800's.  ATI extended VGA register index 0xAE is defined as
- * follows:
- *
- *    0xF0 - reserved
- *    0x0C - read bank select bits 0x30
- *    0x03 - write bank select bits 0x30
- */
-
-/*
  * ATIx8800SetBank --
  *
  * Set an ATI 28800's, 68800's or 88800's read and write bank numbers.
@@ -130,62 +43,10 @@ ATIx8800SetBank
     unsigned int iBank
 )
 {
-    ATIV4V5SetBank(pATI, iBank);
-    iBank = GetBits(iBank, 0x30U);
-    ATIModifyExtReg(pATI, 0xAEU, -1, (CARD8)(~0x0FU),
-        SetBits(iBank, 0x03U) | SetBits(iBank, 0x0CU));
-}
+    (void)iBank; /* always called with iBank = 0 */
 
-/*
- * ATIx8800SetRead --
- *
- * Set an ATI 28800's, 68800's or 88800's read bank numbers.
- */
-int
-ATIx8800SetRead
-(
-    ScreenPtr    pScreen,
-    unsigned int iBank
-)
-{
-    (void)ATIV4V5SetRead(pScreen, iBank);
-    ATIModifyExtReg(ATIPTR(XF86SCRNINFO(pScreen)), 0xAEU, -1, (CARD8)(~0x0CU),
-        SetBits(GetBits(iBank, 0x30U), 0x0CU));
-    return 0;
-}
-
-/*
- * ATIx8800SetWrite --
- *
- * Set an ATI 28800's, 68800's or 88800's write bank numbers.
- */
-int
-ATIx8800SetWrite
-(
-    ScreenPtr    pScreen,
-    unsigned int iBank
-)
-{
-    (void)ATIV4V5SetWrite(pScreen, iBank);
-    ATIModifyExtReg(ATIPTR(XF86SCRNINFO(pScreen)), 0xAEU, -1, (CARD8)(~0x03U),
-        SetBits(GetBits(iBank, 0x30U), 0x03U));
-    return 0;
-}
-
-/*
- * ATIx8800SetReadWrite --
- *
- * Set an ATI 28800's, 68800's or 88800's read and write bank numbers.
- */
-int
-ATIx8800SetReadWrite
-(
-    ScreenPtr    pScreen,
-    unsigned int iBank
-)
-{
-    ATIx8800SetBank(ATIPTR(XF86SCRNINFO(pScreen)), iBank);
-    return 0;
+    ATIPutExtReg(0xB2U, 0x00U);
+    ATIModifyExtReg(pATI, 0xAEU, -1, (CARD8)(~0x0FU), 0x00U);
 }
 
 /*
@@ -222,58 +83,6 @@ ATIMach64SetBankPacked
     outr(MEM_VGA_WP_SEL, tmp);
 }
 
-/*
- * ATIMach64SetReadPacked --
- *
- * Set read bank number for small dual paged apertures.
- */
-int
-ATIMach64SetReadPacked
-(
-    ScreenPtr    pScreen,
-    unsigned int iBank
-)
-{
-    ATIPtr pATI = ATIPTR(XF86SCRNINFO(pScreen));
-
-    outr(MEM_VGA_RP_SEL, ATIMach64MassagePackedBankNumber(iBank));
-    return 0;
-}
-
-/*
- * ATIMach64SetWritePacked --
- *
- * Set write bank number for small dual paged apertures.
- */
-int
-ATIMach64SetWritePacked
-(
-    ScreenPtr    pScreen,
-    unsigned int iBank
-)
-{
-    ATIPtr pATI = ATIPTR(XF86SCRNINFO(pScreen));
-
-    outr(MEM_VGA_WP_SEL, ATIMach64MassagePackedBankNumber(iBank));
-    return 0;
-}
-
-/*
- * ATIMach64SetReadWritePacked --
- *
- * Set read and write bank numbers for small dual paged apertures.
- */
-int
-ATIMach64SetReadWritePacked
-(
-    ScreenPtr    pScreen,
-    unsigned int iBank
-)
-{
-    ATIMach64SetBankPacked(ATIPTR(XF86SCRNINFO(pScreen)), iBank);
-    return 0;
-}
-
 static CARD32
 ATIMach64MassagePlanarBankNumber
 (
diff --git a/src/atibank.h b/src/atibank.h
index d50aa68..d56da68 100644
--- a/src/atibank.h
+++ b/src/atibank.h
@@ -25,37 +25,9 @@
 
 #include "atipriv.h"
 
-#include "mibank.h"
-
 #ifndef AVOID_CPIO
 
 /*
- * Banking definitions.
- */
-
-/*
- * Bank selection functions for VGA Wonder V4 and V5 adapters.
- */
-extern miBankProc        ATIV4V5SetRead,
-                         ATIV4V5SetWrite;
-
-/*
- * Bank selection functions for 28800-x, 68800-x and 88800 based adapters.
- */
-extern miBankProc        ATIx8800SetRead,
-                         ATIx8800SetWrite,
-                         ATIx8800SetReadWrite;
-
-/*
- * Bank selection functions used to simulate a banked VGA aperture with a
- * Mach64's small dual paged apertures.  There are two sets of these:  one for
- * packed modes, and one for planar modes.
- */
-extern miBankProc        ATIMach64SetReadPacked,
-                         ATIMach64SetWritePacked,
-                         ATIMach64SetReadWritePacked;
-
-/*
  * The CRT save/restore code also needs a separate banking interface that can
  * used before ATIScreenInit() is called.
  */
@@ -63,8 +35,7 @@ extern miBankProc        ATIMach64SetReadPacked,
 typedef void ATIBankProc(ATIPtr, unsigned int);
 typedef ATIBankProc     *ATIBankProcPtr;
 
-extern ATIBankProc       ATIV4V5SetBank,
-                         ATIx8800SetBank,
+extern ATIBankProc       ATIx8800SetBank,
                          ATIMach64SetBankPacked,
                          ATIMach64SetBankPlanar;
 
diff --git a/src/aticonsole.c b/src/aticonsole.c
index 140f21d..6d0c662 100644
--- a/src/aticonsole.c
+++ b/src/aticonsole.c
@@ -716,14 +716,6 @@ ATIEnterVT
         return TRUE;
     }
 
-#ifndef AVOID_CPIO
-
-    /* If used, modify banking interface */
-    if (!miModifyBanking(pScreen, &pATI->BankInfo))
-        return FALSE;
-
-#endif /* AVOID_CPIO */
-
     pScreenPixmap = (*pScreen->GetScreenPixmap)(pScreen);
     PixmapPrivate = pScreenPixmap->devPrivate;
     if (!PixmapPrivate.ptr)
diff --git a/src/atidga.c b/src/atidga.c
index d866e36..e6783a4 100644
--- a/src/atidga.c
+++ b/src/atidga.c
@@ -414,19 +414,6 @@ ATIDGAInit
 
     if (!pATI->nDGAMode)
     {
-
-#ifndef AVOID_CPIO
-
-        /*
-         * Contrary to previous extension versions, DGA 2 does not support
-         * banked framebuffers.  Also, disable DGA when non-DGA server modes
-         * are planar.
-         */
-        if (pATI->BankInfo.BankSize)
-            return FALSE;
-
-#endif /* AVOID_CPIO */
-
         /* Set up DGA callbacks */
         pATI->ATIDGAFunctions.OpenFramebuffer = ATIDGAOpenFramebuffer;
         pATI->ATIDGAFunctions.SetMode         = ATIDGASetMode;
diff --git a/src/atimach64.c b/src/atimach64.c
index 5aee170..ffda885 100644
--- a/src/atimach64.c
+++ b/src/atimach64.c
@@ -146,7 +146,7 @@ ATIMach64PreInit
 
 #ifndef AVOID_CPIO
 
-    if (pATI->UseSmallApertures)
+    if (pATI->VGAAdapter)
     {
         pATIHW->config_cntl |= CFG_MEM_VGA_AP_EN;
     }
diff --git a/src/atimach64accel.c b/src/atimach64accel.c
index e1908b1..090ae78 100644
--- a/src/atimach64accel.c
+++ b/src/atimach64accel.c
@@ -981,16 +981,7 @@ ATIMach64AccelInit
     if (pATI->XModifier == 1)
     {
         pXAAInfo->Flags = PIXMAP_CACHE | OFFSCREEN_PIXMAPS;
-
-#ifndef AVOID_CPIO
-
-        if (!pATI->BankInfo.BankSize)
-
-#endif /* AVOID_CPIO */
-
-        {
-            pXAAInfo->Flags |= LINEAR_FRAMEBUFFER;
-        }
+        pXAAInfo->Flags |= LINEAR_FRAMEBUFFER;
     }
 
     /* Sync */
diff --git a/src/atimode.c b/src/atimode.c
index 36d548f..f5979d6 100644
--- a/src/atimode.c
+++ b/src/atimode.c
@@ -230,16 +230,6 @@ ATISwap
 
     /* Back to bank 0 */
     (*pATIHW->SetBank)(pATI, 0);
-
-    /*
-     * If restoring video memory for a server video mode, free the frame buffer
-     * save area.
-     */
-    if (ToFB && (pATIHW == &pATI->NewHW))
-    {
-        xfree(pATIHW->frame_buffer);
-        pATIHW->frame_buffer = NULL;
-    }
 }
 
 #endif /* AVOID_CPIO */
@@ -505,25 +495,16 @@ ATIModeSave
     /* Save RAMDAC state */
     ATIDACSave(pATI, pATIHW);
 
-    /*
-     * The server has already saved video memory contents when switching out of
-     * its virtual console, so don't do it again.
-     */
     if (pATIHW != &pATI->NewHW)
     {
         pATIHW->FeedbackDivider = 0;    /* Don't programme clock */
+    }
 
 #ifndef AVOID_CPIO
 
         /* Save video memory */
         ATISwap(pScreenInfo->scrnIndex, pATI, pATIHW, FALSE);
 
-#endif /* AVOID_CPIO */
-
-    }
-
-#ifndef AVOID_CPIO
-
     if (pATI->VGAAdapter)
         ATIVGASaveScreen(pATI, SCREEN_SAVER_OFF);       /* Turn on screen */
 
@@ -1037,7 +1018,7 @@ ATIModeSet
 
 #ifndef AVOID_CPIO
 
-            if (pATI->UseSmallApertures)
+            if (pATI->VGAAdapter)
             {
                 /* Oddly enough, these need to be set also, maybe others */
                 PutReg(SEQX, 0x02U, pATIHW->seq[2]);
diff --git a/src/atipreinit.c b/src/atipreinit.c
index 7d77eec..9b48eb0 100644
--- a/src/atipreinit.c
+++ b/src/atipreinit.c
@@ -472,16 +472,6 @@ ATIPreInit
     /* Finish private area initialisation */
     pATI->DAC = ATI_DAC_GENERIC;
 
-#ifndef AVOID_CPIO
-
-    pATI->NewHW.SetBank = ATIx8800SetBank;
-    pATI->BankInfo.SetSourceBank = ATIx8800SetRead;
-    pATI->BankInfo.SetDestinationBank = ATIx8800SetWrite;
-    pATI->BankInfo.SetSourceAndDestinationBanks = ATIx8800SetReadWrite;
-    pATI->BankInfo.BankSize = 0x00010000U;      /* 64kB */
-
-#endif /* AVOID_CPIO */
-
     pATI->LCDPanelID = -1;
     pATI->nFIFOEntries = 16;                    /* For now */
     pATI->Audio = ATI_AUDIO_NONE;
@@ -2000,24 +1990,6 @@ ATIPreInit
             }
         }
 
-#ifndef AVOID_CPIO
-
-        if (pATI->VGAAdapter)
-        {
-            pATI->UseSmallApertures = TRUE;
-
-            /* Set banking functions */
-            {
-                pATI->NewHW.SetBank = ATIMach64SetBankPacked;
-                pATI->BankInfo.SetSourceBank = ATIMach64SetReadPacked;
-                pATI->BankInfo.SetDestinationBank = ATIMach64SetWritePacked;
-                pATI->BankInfo.SetSourceAndDestinationBanks =
-                    ATIMach64SetReadWritePacked;
-            }
-        }
-
-#endif /* AVOID_CPIO */
-
         if (!pATI->LinearBase || !pATI->LinearSize)
         {
                 xf86DrvMsg(pScreenInfo->scrnIndex, X_ERROR,
@@ -2104,40 +2076,36 @@ ATIPreInit
 
     if (!pATI->VGAAdapter)
     {
+        pATI->NewHW.SetBank = ATIx8800SetBank;
+        pATI->NewHW.nPlane = 0;
+
         pATIHW->crtc = pATI->NewHW.crtc;
 
         pATIHW->SetBank = (ATIBankProcPtr)NoopDDA;
-        pATI->BankInfo.BankSize = 0;            /* No banking */
     }
     else
     {
+        Bool ext_disp_en = (pATI->LockData.crtc_gen_cntl & CRTC_EXT_DISP_EN);
+        Bool vga_ap_en = (pATI->LockData.config_cntl & CFG_MEM_VGA_AP_EN);
+        Bool vga_color_256 = (GetReg(SEQX, 0x04U) & 0x08U);
+
+        pATI->NewHW.SetBank = ATIMach64SetBankPacked;
+        pATI->NewHW.nPlane = 1;
+
         pATIHW->crtc = ATI_CRTC_VGA;
-        if ((pATI->LockData.crtc_gen_cntl & CRTC_EXT_DISP_EN))
-        {
-            pATIHW->crtc = ATI_CRTC_MACH64;
-        }
 
-        {
-            pATI->BankInfo.nBankDepth = pATI->depth;
-            pATI->NewHW.nPlane = 1;
-        }
+        if (ext_disp_en)
+            pATIHW->crtc = ATI_CRTC_MACH64;
 
-        if ((pATIHW->crtc != ATI_CRTC_VGA) || (GetReg(SEQX, 0x04U) & 0x08U))
+        if ((pATIHW->crtc != ATI_CRTC_VGA) || vga_color_256)
             pATIHW->nPlane = 1;
         else
             pATIHW->nPlane = 4;
 
-        pATIHW->nBank = ATIDivide(pATI->VideoRAM,
-            pATIHW->nPlane * pATI->BankInfo.BankSize, 10, 1);
-        pATI->NewHW.nBank = ATIDivide(pATI->VideoRAM,
-            pATI->NewHW.nPlane * pATI->BankInfo.BankSize, 10, 1);
+        /* VideoRAM is a multiple of 512kB and BankSize is 64kB */
+        pATIHW->nBank = pATI->VideoRAM / (pATIHW->nPlane * 0x40U);
 
-        if (!pATI->UseSmallApertures)
-        {
-            pATIHW->SetBank = pATI->NewHW.SetBank;
-        }
-        else if ((pATIHW->crtc == ATI_CRTC_VGA) &&
-                 !(pATI->LockData.config_cntl & CFG_MEM_VGA_AP_EN))
+        if ((pATIHW->crtc == ATI_CRTC_VGA) && !vga_ap_en)
         {
             pATIHW->SetBank = (ATIBankProcPtr)NoopDDA;
             pATIHW->nBank = 1;
@@ -2150,10 +2118,6 @@ ATIPreInit
         {
             pATIHW->SetBank = ATIMach64SetBankPlanar;
         }
-
-        if (((ApertureSize * pATI->depth) / pATI->BankInfo.nBankDepth) >=
-            (unsigned)(pScreenInfo->videoRam * 1024))
-            pATI->BankInfo.BankSize = 0;        /* No banking */
     }
 
 #else /* AVOID_CPIO */
@@ -2168,18 +2132,6 @@ ATIPreInit
     {
         /* Until ShadowFB becomes a true screen wrapper, if it ever does... */
 
-#ifndef AVOID_CPIO
-
-        if (pATI->BankInfo.BankSize)
-        {
-            xf86DrvMsg(pScreenInfo->scrnIndex, X_WARNING,
-                "Cannot shadow a banked frame buffer.\n");
-            pATI->OptionShadowFB = FALSE;
-        }
-        else
-
-#endif /* AVOID_CPIO */
-
         if (pATI->OptionAccel)
         {
             xf86DrvMsg(pScreenInfo->scrnIndex, X_WARNING,
diff --git a/src/atiscreen.c b/src/atiscreen.c
index b9984ae..e849941 100644
--- a/src/atiscreen.c
+++ b/src/atiscreen.c
@@ -63,7 +63,6 @@
 
 #include "fb.h"
 
-#include "mibank.h"
 #include "micmap.h"
 #include "mipointer.h"
 
@@ -136,11 +135,6 @@ ATIMach64SetupMemXAA_NoDRI
     int maxScanlines = ATIMach64MaxY;
     int maxPixelArea, PixelArea;
 
-#ifndef AVOID_CPIO
-
-    if (!pATI->BankInfo.BankSize)
-
-#endif /* AVOID_CPIO */
     {
         /*
          * Note:  If PixelArea exceeds the engine's maximum, the excess is
@@ -500,19 +494,6 @@ ATIScreenInit
                     "RENDER extension not supported with a shadowed"
                     " framebuffer.\n");
         }
-
-#ifndef AVOID_CPIO
-
-        else if (pATI->BankInfo.BankSize)
-        {
-            if (serverGeneration == 1)
-                xf86DrvMsg(pScreenInfo->scrnIndex, X_WARNING,
-                    "RENDER extension not supported with a banked"
-                    " framebuffer.\n");
-        }
-
-#endif /* AVOID_CPIO */
-
         else if (!fbPictureInit(pScreen, NULL, 0) &&
                  (serverGeneration == 1))
         {
@@ -523,16 +504,6 @@ ATIScreenInit
 
     xf86SetBlackWhitePixels(pScreen);
 
-#ifndef AVOID_CPIO
-
-    /* Initialise banking if needed */
-    if (!miInitializeBanking(pScreen,
-                             pScreenInfo->virtualX, pScreenInfo->virtualY,
-                             pATI->displayWidth, &pATI->BankInfo))
-        return FALSE;
-
-#endif /* AVOID_CPIO */
-
 #ifdef USE_XAA
 
     if (!pATI->useEXA) {
diff --git a/src/atistruct.h b/src/atistruct.h
index 0cf88ba..f652576 100644
--- a/src/atistruct.h
+++ b/src/atistruct.h
@@ -250,7 +250,6 @@ typedef struct _ATIRec
      * Processor I/O port definitions for VGA Wonder.
      */
     IOADDRESS CPIO_VGAWonder;
-    CARD8 B2Reg;        /* The B2 mirror */
 
 #endif /* AVOID_CPIO */
 
@@ -305,9 +304,7 @@ typedef struct _ATIRec
     /*
      * Banking interface.
      */
-    miBankInfoRec BankInfo;
     pointer pBank;
-    CARD8 UseSmallApertures;
 
 #endif /* AVOID_CPIO */
 
diff --git a/src/ativga.c b/src/ativga.c
index 391ea72..8f4b0da 100644
--- a/src/ativga.c
+++ b/src/ativga.c
@@ -74,7 +74,7 @@ ATIVGAPreInit
     /* Initialise graphics controller register values */
     if (pATI->Chip >= ATI_CHIP_264CT)
         pATIHW->gra[5] = 0x40U;
-    if (pATI->UseSmallApertures && (pATI->Chip >= ATI_CHIP_264VT))
+    if (pATI->Chip >= ATI_CHIP_264VT)
         pATIHW->gra[6] = 0x01U;         /* 128kB aperture */
     else
         pATIHW->gra[6] = 0x05U;         /* 64kB aperture */
diff --git a/src/atividmem.c b/src/atividmem.c
index 89e164d..99560f5 100644
--- a/src/atividmem.c
+++ b/src/atividmem.c
@@ -86,7 +86,7 @@ ATIUnmapVGA
 
     xf86UnMapVidMem(iScreen, pATI->pBank, 0x00010000U);
 
-    pATI->pBank = pATI->BankInfo.pBankA = pATI->BankInfo.pBankB = NULL;
+    pATI->pBank = NULL;
 }
 
 #endif /* AVOID_CPIO */
@@ -193,9 +193,6 @@ ATIMapApertures
         if (!pATI->pBank)
             return FALSE;
 
-            pATI->BankInfo.pBankA =
-            pATI->BankInfo.pBankB = pATI->pBank;
-
         pATI->Mapped = TRUE;
     }