[SCSI] aic7xxx: update .reg files

Update .reg files, marking unused registers with dont_generate_debug_code.
Comment explains how to use it.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 124 insertions, 0 deletions

diff --git a/drivers/scsi/aic7xxx/aic7xxx.reg b/drivers/scsi/aic7xxx/aic7xxx.reg
index 0d2f763c3427..9a96e55da39a 100644
--- a/drivers/scsi/aic7xxx/aic7xxx.reg
+++ b/drivers/scsi/aic7xxx/aic7xxx.reg
@@ -51,6 +51,17 @@ VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic7xxx.reg#40 $"
  */
 
 /*
+ * Registers marked "dont_generate_debug_code" are not (yet) referenced
+ * from the driver code, and this keyword inhibit generation
+ * of debug code for them.
+ *
+ * REG_PRETTY_PRINT config will complain if dont_generate_debug_code
+ * is added to the register which is referenced in the driver.
+ * Unreferenced register with no dont_generate_debug_code will result
+ * in dead code. No warning is issued.
+ */
+
+/*
  * SCSI Sequence Control (p. 3-11).
  * Each bit, when set starts a specific SCSI sequence on the bus
  */
@@ -97,6 +108,7 @@ register SXFRCTL1 {
         field   ENSTIMER        0x04
         field   ACTNEGEN        0x02
         field   STPWEN          0x01    /* Powered Termination */
+        dont_generate_debug_code
 }
 
 /*
@@ -155,6 +167,7 @@ register SCSISIGO {
         mask    P_MESGOUT       CDI|MSGI
         mask    P_STATUS        CDI|IOI
         mask    P_MESGIN        CDI|IOI|MSGI
+        dont_generate_debug_code
 }
 
 /* 
@@ -194,6 +207,7 @@ register SCSIID	{
          */
         alias   SCSIOFFSET
         mask    SOFS_ULTRA2     0x7f            /* Sync offset U2 chips */
+        dont_generate_debug_code
 }
 
 /*
@@ -205,6 +219,7 @@ register SCSIID	{
 register SCSIDATL {
         address                 0x006
         access_mode RW
+        dont_generate_debug_code
 }
 
 register SCSIDATH {
@@ -223,6 +238,7 @@ register STCNT {
         address                 0x008
         size    3
         access_mode RW
+        dont_generate_debug_code
 }
 
 /* ALT_MODE registers (Ultra2 and Ultra160 chips) */
@@ -248,6 +264,7 @@ register OPTIONMODE {
         field   AUTO_MSGOUT_DE          0x02
         field   DIS_MSGIN_DUALEDGE      0x01
         mask    OPTIONMODE_DEFAULTS     AUTO_MSGOUT_DE|DIS_MSGIN_DUALEDGE
+        dont_generate_debug_code
 }
 
 /* ALT_MODE register on Ultra160 chips */
@@ -256,6 +273,7 @@ register TARGCRCCNT {
         size    2
         access_mode RW
         count           2
+        dont_generate_debug_code
 }
 
 /*
@@ -271,6 +289,7 @@ register CLRSINT0 {
         field   CLRSWRAP        0x08
         field   CLRIOERR        0x08    /* Ultra2 Only */
         field   CLRSPIORDY      0x02
+        dont_generate_debug_code
 }
 
 /*
@@ -306,6 +325,7 @@ register CLRSINT1 {
         field   CLRSCSIPERR     0x04
         field   CLRPHASECHG     0x02
         field   CLRREQINIT      0x01
+        dont_generate_debug_code
 }
 
 /*
@@ -360,6 +380,7 @@ register SCSIID_ULTRA2 {
         access_mode RW
         mask    TID             0xf0            /* Target ID mask */
         mask    OID             0x0f            /* Our ID mask */
+        dont_generate_debug_code
 }
 
 /*
@@ -425,6 +446,7 @@ register SHADDR {
         address                 0x014
         size    4
         access_mode RO
+        dont_generate_debug_code
 }
 
 /*
@@ -441,6 +463,7 @@ register SELTIMER {
         field   STAGE2          0x02
         field   STAGE1          0x01
         alias   TARGIDIN
+        dont_generate_debug_code
 }
 
 /*
@@ -453,6 +476,7 @@ register SELID {
         access_mode RW
         mask    SELID_MASK      0xf0
         field   ONEBIT          0x08
+        dont_generate_debug_code
 }
 
 register SCAMCTL {
@@ -473,6 +497,7 @@ register TARGID {
         size                    2
         access_mode RW
         count           14
+        dont_generate_debug_code
 }
 
 /*
@@ -495,6 +520,7 @@ register SPIOCAP {
         field   EEPROM          0x04    /* Writable external BIOS ROM */
         field   ROM             0x02    /* Logic for accessing external ROM */
         field   SSPIOCPS        0x01    /* Termination and cable detection */
+        dont_generate_debug_code
 }
 
 register BRDCTL {
@@ -514,6 +540,7 @@ register BRDCTL	{
         field   BRDDAT2         0x04
         field   BRDRW_ULTRA2    0x02
         field   BRDSTB_ULTRA2   0x01
+        dont_generate_debug_code
 }
 
 /*
@@ -551,6 +578,7 @@ register SEECTL {
         field   SEECK           0x04
         field   SEEDO           0x02
         field   SEEDI           0x01
+        dont_generate_debug_code
 }
 /*
  * SCSI Block Control (p. 3-32)
@@ -601,6 +629,7 @@ register SEQRAM {
         address                 0x061
         access_mode RW
         count           2
+        dont_generate_debug_code
 }
 
 /*
@@ -610,6 +639,7 @@ register SEQRAM {
 register SEQADDR0 {
         address                 0x062
         access_mode RW
+        dont_generate_debug_code
 }
 
 register SEQADDR1 {
@@ -617,6 +647,7 @@ register SEQADDR1 {
         access_mode RW
         count           8
         mask    SEQADDR1_MASK   0x01
+        dont_generate_debug_code
 }
 
 /*
@@ -627,35 +658,41 @@ register ACCUM {
         address                 0x064
         access_mode RW
         accumulator
+        dont_generate_debug_code
 }
 
 register SINDEX {
         address                 0x065
         access_mode RW
         sindex
+        dont_generate_debug_code
 }
 
 register DINDEX {
         address                 0x066
         access_mode RW
+        dont_generate_debug_code
 }
 
 register ALLONES {
         address                 0x069
         access_mode RO
         allones
+        dont_generate_debug_code
 }
 
 register ALLZEROS {
         address                 0x06a
         access_mode RO
         allzeros
+        dont_generate_debug_code
 }
 
 register NONE {
         address                 0x06a
         access_mode WO
         none
+        dont_generate_debug_code
 }
 
 register FLAGS {
@@ -664,16 +701,19 @@ register FLAGS {
         count           18
         field   ZERO            0x02
         field   CARRY           0x01
+        dont_generate_debug_code
 }
 
 register SINDIR {
         address                 0x06c
         access_mode RO
+        dont_generate_debug_code
 }
 
 register DINDIR  {
         address                 0x06d
         access_mode WO
+        dont_generate_debug_code
 }
 
 register FUNCTION1 {
@@ -685,6 +725,7 @@ register STACK {
         address                 0x06f
         access_mode RO
         count           5
+        dont_generate_debug_code
 }
 
 const   STACK_SIZE      4
@@ -716,6 +757,7 @@ register DSCOMMAND0 {
         field   RAMPS           0x04    /* External SCB RAM Present */
         field   USCBSIZE32      0x02    /* Use 32byte SCB Page Size */
         field   CIOPARCKEN      0x01    /* Internal bus parity error enable */
+        dont_generate_debug_code
 }
 
 register DSCOMMAND1 {
@@ -724,6 +766,7 @@ register DSCOMMAND1 {
         mask    DSLATT          0xfc    /* PCI latency timer (non-ultra2) */
         field   HADDLDSEL1      0x02    /* Host Address Load Select Bits */
         field   HADDLDSEL0      0x01
+        dont_generate_debug_code
 }
 
 /*
@@ -735,6 +778,7 @@ register BUSTIME {
         count           2
         mask    BOFF            0xf0
         mask    BON             0x0f
+        dont_generate_debug_code
 }
 
 /*
@@ -749,6 +793,7 @@ register BUSSPD {
         mask    STBON           0x07
         mask    DFTHRSH_100     0xc0
         mask    DFTHRSH_75      0x80
+        dont_generate_debug_code
 }
 
 /* aic7850/55/60/70/80/95 only */
@@ -756,6 +801,7 @@ register DSPCISTATUS {
         address                 0x086
         count           4
         mask    DFTHRSH_100     0xc0
+        dont_generate_debug_code
 }
 
 /* aic7890/91/96/97 only */
@@ -764,6 +810,7 @@ register HS_MAILBOX {
         mask    HOST_MAILBOX    0xF0
         mask    SEQ_MAILBOX     0x0F
         mask    HOST_TQINPOS    0x80    /* Boundary at either 0 or 128 */
+        dont_generate_debug_code
 }
 
 const   HOST_MAILBOX_SHIFT      4
@@ -784,6 +831,7 @@ register HCNTRL {
         field   INTEN           0x02
         field   CHIPRST         0x01
         field   CHIPRSTACK      0x01
+        dont_generate_debug_code
 }
 
 /*
@@ -795,12 +843,14 @@ register HADDR {
         address                 0x088
         size    4
         access_mode RW
+        dont_generate_debug_code
 }
 
 register HCNT {
         address                 0x08c
         size    3
         access_mode RW
+        dont_generate_debug_code
 }
 
 /*
@@ -810,6 +860,7 @@ register HCNT {
 register SCBPTR {
         address                 0x090
         access_mode RW
+        dont_generate_debug_code
 }
 
 /*
@@ -878,6 +929,7 @@ register INTSTAT {
 
         mask    SEQINT_MASK     0xf0|SEQINT     /* SEQINT Status Codes */
         mask    INT_PEND  (BRKADRINT|SEQINT|SCSIINT|CMDCMPLT)
+        dont_generate_debug_code
 }
 
 /*
@@ -911,6 +963,7 @@ register CLRINT {
         field   CLRSCSIINT      0x04
         field   CLRCMDINT       0x02
         field   CLRSEQINT       0x01
+        dont_generate_debug_code
 }
 
 register DFCNTRL {
@@ -944,6 +997,7 @@ register DFSTATUS {
 register DFWADDR {
         address                 0x95
         access_mode RW
+        dont_generate_debug_code
 }
 
 register DFRADDR {
@@ -954,6 +1008,7 @@ register DFRADDR {
 register DFDAT {
         address                 0x099
         access_mode RW
+        dont_generate_debug_code
 }
 
 /*
@@ -967,6 +1022,7 @@ register SCBCNT {
         count           1
         field   SCBAUTO         0x80
         mask    SCBCNT_MASK     0x1f
+        dont_generate_debug_code
 }
 
 /*
@@ -977,6 +1033,7 @@ register QINFIFO {
         address                 0x09b
         access_mode RW
         count           12
+        dont_generate_debug_code
 }
 
 /*
@@ -996,6 +1053,7 @@ register QOUTFIFO {
         address                 0x09d
         access_mode WO
         count           7
+        dont_generate_debug_code
 }
 
 register CRCCONTROL1 {
@@ -1008,6 +1066,7 @@ register CRCCONTROL1 {
         field   CRCREQCHKEN             0x10
         field   TARGCRCENDEN            0x08
         field   TARGCRCCNTEN            0x04
+        dont_generate_debug_code
 }
 
 
@@ -1040,6 +1099,7 @@ register SFUNCT {
         access_mode RW
         count       4
         field   ALT_MODE        0x80
+        dont_generate_debug_code
 }
 
 /*
@@ -1053,24 +1113,31 @@ scb {
                 size    4
                 alias   SCB_RESIDUAL_DATACNT
                 alias   SCB_CDB_STORE
+                dont_generate_debug_code
         }
         SCB_RESIDUAL_SGPTR {
                 size    4
+                dont_generate_debug_code
         }
         SCB_SCSI_STATUS {
                 size    1
+                dont_generate_debug_code
         }
         SCB_TARGET_PHASES {
                 size    1
+                dont_generate_debug_code
         }
         SCB_TARGET_DATA_DIR {
                 size    1
+                dont_generate_debug_code
         }
         SCB_TARGET_ITAG {
                 size    1
+                dont_generate_debug_code
         }
         SCB_DATAPTR {
                 size    4
+                dont_generate_debug_code
         }
         SCB_DATACNT {
                 /*
@@ -1080,12 +1147,14 @@ scb {
                 size    4
                 field   SG_LAST_SEG             0x80    /* In the fourth byte */
                 mask    SG_HIGH_ADDR_BITS       0x7F    /* In the fourth byte */
+                dont_generate_debug_code
         }
         SCB_SGPTR {
                 size    4
                 field   SG_RESID_VALID  0x04    /* In the first byte */
                 field   SG_FULL_RESID   0x02    /* In the first byte */
                 field   SG_LIST_NULL    0x01    /* In the first byte */
+                dont_generate_debug_code
         }
         SCB_CONTROL {
                 size    1
@@ -1115,22 +1184,27 @@ scb {
         }
         SCB_CDB_LEN {
                 size    1
+                dont_generate_debug_code
         }
         SCB_SCSIRATE {
                 size    1
+                dont_generate_debug_code
         }
         SCB_SCSIOFFSET {
                 size    1
                 count   1
+                dont_generate_debug_code
         }
         SCB_NEXT {
                 size    1
+                dont_generate_debug_code
         }
         SCB_64_SPARE {
                 size    16
         }
         SCB_64_BTT {
                 size    16
+                dont_generate_debug_code
         }
 }
 
@@ -1149,6 +1223,7 @@ register SEECTL_2840 {
         field   CS_2840         0x04
         field   CK_2840         0x02
         field   DO_2840         0x01
+        dont_generate_debug_code
 }
 
 register STATUS_2840 {
@@ -1159,6 +1234,7 @@ register STATUS_2840 {
         mask    BIOS_SEL        0x60
         mask    ADSEL           0x1e
         field   DI_2840         0x01
+        dont_generate_debug_code
 }
 
 /* --------------------- AIC-7870-only definitions -------------------- */
@@ -1166,18 +1242,22 @@ register STATUS_2840 {
 register CCHADDR {
         address                 0x0E0
         size 8
+        dont_generate_debug_code
 }
 
 register CCHCNT {
         address                 0x0E8
+        dont_generate_debug_code
 }
 
 register CCSGRAM {
         address                 0x0E9
+        dont_generate_debug_code
 }
 
 register CCSGADDR {
         address                 0x0EA
+        dont_generate_debug_code
 }
 
 register CCSGCTL {
@@ -1186,11 +1266,13 @@ register CCSGCTL {
         field   CCSGEN          0x08
         field   SG_FETCH_NEEDED 0x02    /* Bit used for software state */
         field   CCSGRESET       0x01
+        dont_generate_debug_code
 }
 
 register CCSCBCNT {
         address                 0xEF
         count           1
+        dont_generate_debug_code
 }
 
 register CCSCBCTL {
@@ -1201,14 +1283,17 @@ register CCSCBCTL {
         field   CCSCBEN         0x08
         field   CCSCBDIR        0x04
         field   CCSCBRESET      0x01
+        dont_generate_debug_code
 }
 
 register CCSCBADDR {
         address                 0x0ED
+        dont_generate_debug_code
 }
 
 register CCSCBRAM {
         address                 0xEC
+        dont_generate_debug_code
 }
 
 /*
@@ -1218,23 +1303,28 @@ register SCBBADDR {
         address                 0x0F0
         access_mode RW
         count           3
+        dont_generate_debug_code
 }
 
 register CCSCBPTR {
         address                 0x0F1
+        dont_generate_debug_code
 }
 
 register HNSCB_QOFF {
         address                 0x0F4
         count           4
+        dont_generate_debug_code
 }
 
 register SNSCB_QOFF {
         address                 0x0F6
+        dont_generate_debug_code
 }
 
 register SDSCB_QOFF {
         address                 0x0F8
+        dont_generate_debug_code
 }
 
 register QOFF_CTLSTA {
@@ -1244,6 +1334,7 @@ register QOFF_CTLSTA {
         field   SDSCB_ROLLOVER  0x10
         mask    SCB_QSIZE       0x07
         mask    SCB_QSIZE_256   0x06
+        dont_generate_debug_code
 }
 
 register DFF_THRSH {
@@ -1267,6 +1358,7 @@ register DFF_THRSH {
         mask    WR_DFTHRSH_90   0x60
         mask    WR_DFTHRSH_MAX  0x70
         count   4
+        dont_generate_debug_code
 }
 
 register SG_CACHE_PRE {
@@ -1275,6 +1367,7 @@ register SG_CACHE_PRE {
         mask    SG_ADDR_MASK    0xf8
         field   LAST_SEG        0x02
         field   LAST_SEG_DONE   0x01
+        dont_generate_debug_code
 }
 
 register SG_CACHE_SHADOW {
@@ -1283,6 +1376,7 @@ register SG_CACHE_SHADOW {
         mask    SG_ADDR_MASK    0xf8
         field   LAST_SEG        0x02
         field   LAST_SEG_DONE   0x01
+        dont_generate_debug_code
 }
 /* ---------------------- Scratch RAM Offsets ------------------------- */
 /* These offsets are either to values that are initialized by the board's
@@ -1309,6 +1403,7 @@ scratch_ram {
         BUSY_TARGETS {
                 alias           TARG_SCSIRATE
                 size            16
+                dont_generate_debug_code
         }
         /*
          * Bit vector of targets that have ULTRA enabled as set by
@@ -1321,6 +1416,7 @@ scratch_ram {
                 alias           CMDSIZE_TABLE
                 size            2
                 count           2
+                dont_generate_debug_code
         }
         /*
          * Bit vector of targets that have disconnection disabled as set by
@@ -1331,6 +1427,7 @@ scratch_ram {
         DISC_DSB {
                 size            2
                 count           6
+                dont_generate_debug_code
         }
         CMDSIZE_TABLE_TAIL {
                 size            4
@@ -1341,12 +1438,14 @@ scratch_ram {
          */
         MWI_RESIDUAL {
                 size            1
+                dont_generate_debug_code
         }
         /*
          * SCBID of the next SCB to be started by the controller.
          */
         NEXT_QUEUED_SCB {
                 size            1
+                dont_generate_debug_code
         }
         /*
          * Single byte buffer used to designate the type or message
@@ -1354,6 +1453,7 @@ scratch_ram {
          */
         MSG_OUT {
                 size            1
+                dont_generate_debug_code
         }
         /* Parameters for DMA Logic */
         DMAPARAMS {
@@ -1369,6 +1469,7 @@ scratch_ram {
                 field   DIRECTION       0x04    /* Set indicates PCI->SCSI */
                 field   FIFOFLUSH       0x02
                 field   FIFORESET       0x01
+                dont_generate_debug_code
         }
         SEQ_FLAGS {
                 size            1
@@ -1390,9 +1491,11 @@ scratch_ram {
          */
         SAVED_SCSIID {
                 size            1
+                dont_generate_debug_code
         }
         SAVED_LUN {
                 size            1
+                dont_generate_debug_code
         }
         /*
          * The last bus phase as seen by the sequencer. 
@@ -1417,6 +1520,7 @@ scratch_ram {
          */
         WAITING_SCBH {
                 size            1
+                dont_generate_debug_code
         }
         /*
          * head of list of SCBs that are
@@ -1425,6 +1529,7 @@ scratch_ram {
          */
         DISCONNECTED_SCBH {
                 size            1
+                dont_generate_debug_code
         }
         /*
          * head of list of SCBs that are
@@ -1432,6 +1537,7 @@ scratch_ram {
          */
         FREE_SCBH {
                 size            1
+                dont_generate_debug_code
         }
         /*
          * head of list of SCBs that have
@@ -1446,6 +1552,7 @@ scratch_ram {
          */
         HSCB_ADDR {
                 size            4
+                dont_generate_debug_code
         }
         /*
          * Base address of our shared data with the kernel driver in host
@@ -1454,15 +1561,19 @@ scratch_ram {
          */
         SHARED_DATA_ADDR {
                 size            4
+                dont_generate_debug_code
         }
         KERNEL_QINPOS {
                 size            1
+                dont_generate_debug_code
         }
         QINPOS {
                 size            1
+                dont_generate_debug_code
         }
         QOUTPOS {
                 size            1
+                dont_generate_debug_code
         }
         /*
          * Kernel and sequencer offsets into the queue of
@@ -1471,9 +1582,11 @@ scratch_ram {
          */
         KERNEL_TQINPOS {
                 size            1
+                dont_generate_debug_code
         }
         TQINPOS {
                 size            1
+                dont_generate_debug_code
         }
         ARG_1 {
                 size            1
@@ -1486,10 +1599,12 @@ scratch_ram {
                 mask    CONT_MSG_LOOP           0x04
                 mask    CONT_TARG_SESSION       0x02
                 alias   RETURN_1
+                dont_generate_debug_code
         }
         ARG_2 {
                 size            1
                 alias   RETURN_2
+                dont_generate_debug_code
         }
 
         /*
@@ -1498,6 +1613,7 @@ scratch_ram {
         LAST_MSG {
                 size            1
                 alias   TARG_IMMEDIATE_SCB
+                dont_generate_debug_code
         }
 
         /*
@@ -1513,6 +1629,7 @@ scratch_ram {
                 field   ENAUTOATNO      0x08
                 field   ENAUTOATNI      0x04
                 field   ENAUTOATNP      0x02
+                dont_generate_debug_code
         }
 }
 
@@ -1533,12 +1650,14 @@ scratch_ram {
                 field   HA_274_EXTENDED_TRANS   0x01
                 alias   INITIATOR_TAG
                 count           1
+                dont_generate_debug_code
         }
 
         SEQ_FLAGS2 {
                 size    1
                 field   SCB_DMA                 0x01
                 field   TARGET_MSG_PENDING      0x02
+                dont_generate_debug_code
         }
 }
 
@@ -1562,6 +1681,7 @@ scratch_ram {
                 field   ENSPCHK         0x20
                 mask    HSCSIID         0x07    /* our SCSI ID */
                 mask    HWSCSIID        0x0f    /* our SCSI ID if Wide Bus */
+                dont_generate_debug_code
         }
         INTDEF {
                 address         0x05c
@@ -1569,11 +1689,13 @@ scratch_ram {
                 count           1
                 field   EDGE_TRIG       0x80
                 mask    VECTOR          0x0f
+                dont_generate_debug_code
         }
         HOSTCONF {
                 address         0x05d
                 size            1
                 count           1
+                dont_generate_debug_code
         }
         HA_274_BIOSCTRL {
                 address         0x05f
@@ -1582,6 +1704,7 @@ scratch_ram {
                 mask    BIOSMODE                0x30
                 mask    BIOSDISABLED            0x30    
                 field   CHANNEL_B_PRIMARY       0x08
+                dont_generate_debug_code
         }
 }
 
@@ -1595,6 +1718,7 @@ scratch_ram {
         TARG_OFFSET {
                 size            16
                 count           1
+                dont_generate_debug_code
         }
 }