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CVS Update@linux-mips.org: linux

To: linux-cvs-patches@linux-mips.org
Subject: CVS Update@linux-mips.org: linux
From: ralf@linux-mips.org
Date: Sat, 20 Aug 2005 14:52:37 +0100
Reply-to: linux-mips@linux-mips.org
Sender: linux-cvs-patches-bounce@linux-mips.org
CVSROOT:        /home/cvs
Module name:    linux
Changes by:     ralf@ftp.linux-mips.org 05/08/20 14:52:31

Modified files:
        include/asm-mips: mipsmtregs.h 

Log message:
        The time honoured art of .word-ing things to gas ...

diff -urN linux/include/asm-mips/mipsmtregs.h 
linux/include/asm-mips/mipsmtregs.h
--- linux/include/asm-mips/mipsmtregs.h 2005/08/17 13:39:32     1.4
+++ linux/include/asm-mips/mipsmtregs.h 2005/08/20 13:52:31     1.5
@@ -175,8 +175,8 @@
        "       .set    noreorder                                       \n"
        "       .set    noat                                            \n"
        "       .set    mips32r2                                        \n"
-       "       move    $1, %0                                          \n"
        "       .word   0x41610001              # dvpe $1               \n"
+       "       move    %0, $1                                          \n"
        "       ehb                                                     \n"
        "       .set    pop                                             \n"
        : "=r" (res));
@@ -214,12 +214,13 @@
        int res;
 
        __asm__ __volatile__(
-       "       .set    noreorder                                       \n"
+       "       .set    push                                            \n"
        "       .set    mips32r2                                        \n"
-       "       dmt     %0                                              \n"
+       "       .set    noat                                            \n"
+       "       .word   0x41610BC1                      # dmt $1        \n"
        "       ehb                                                     \n"
-       "       .set mips0                                              \n"
-       "       .set reorder                                            \n"
+       "       move    %0, $1                                          \n"
+       "       .set    pop                                             \n"
        : "=r" (res));
 
        instruction_hazard();
@@ -251,7 +252,10 @@
 
 static inline void ehb(void)
 {
-       __asm__ __volatile__("ehb");
+       __asm__ __volatile__(
+       "       .set    mips32r2                                \n"
+       "       ehb                                             \n"
+       "       .set    mips0                                   \n");
 }
 
 #define mftc0(rt,sel)                                                  \
@@ -259,10 +263,14 @@
         unsigned long  __res;                                          \
                                                                        \
        __asm__ __volatile__(                                           \
-        "      .set noat\n\t"                                          \
-        "      mftc0\t%0," #rt ", " #sel "\n\t"                        \
-        "      .set at\n\t"                                            \
-        : "=r" (__res));                                               \
+       "       .set    push                                    \n"     \
+       "       .set    mips32r2                                \n"     \
+       "       .set    noat                                    \n"     \
+       "       # mftc0 $1, $" #rt ", " #sel "                  \n"     \
+       "       .word   0x41000800 | (" #rt " << 16) | " #sel " \n"     \
+       "       move    %0, $1                                  \n"     \
+       "       .set    pop                                     \n"     \
+       : "=r" (__res));                                                \
                                                                        \
        __res;                                                          \
 })
@@ -272,9 +280,10 @@
        unsigned long __res;                                            \
                                                                        \
        __asm__ __volatile__(                                           \
-       "       .set    noat                                    \n"     \
+       "       .set    push                                    \n"     \
+       "       .set    mips32r2                                \n"     \
        "       mftgpr  %0," #rt "                              \n"     \
-       "       .set    at                                      \n"     \
+       "       .set    pop                                     \n"     \
        : "=r" (__res));                                                \
                                                                        \
        __res;                                                          \
@@ -294,17 +303,30 @@
 })
 
 #define mttgpr(rd,v)                                                   \
-({                                                                     \
+do {                                                                   \
        __asm__ __volatile__(                                           \
-       "mttgpr %0," #rd                                                \
+       "       .set    push                                    \n"     \
+       "       .set    mips32r2                                \n"     \
+       "       .set    noat                                    \n"     \
+       "       move    $1, %0                                  \n"     \
+       "       # mttgpr $1, " #rd "                            \n"     \
+       "       .word   0x41810020 | (" #rd " << 11)            \n"     \
+       "       .set    pop                                     \n"     \
        : : "r" (v));                                                   \
-})
+} while (0)
 
 #define mttc0(rd,sel,v)                                                        
\
 ({                                                                     \
        __asm__ __volatile__(                                           \
-       "mttc0\t %0," #rd ", " #sel                                     \
-       : : "r" (v));                                                   \
+       "       .set    push                                    \n"     \
+       "       .set    mips32r2                                \n"     \
+       "       .set    noat                                    \n"     \
+       "       move    $1, %0                                  \n"     \
+       "       # mttc0 %0," #rd ", " #sel "                    \n"     \
+       "       .word   0x41810000 | (" #rd " << 11) | " #sel " \n"     \
+       "       .set    pop                                     \n"     \
+       :                                                               \
+       : "r" (v));                                                     \
 })
 
 
@@ -324,42 +346,42 @@
 
 
 /* you *must* set the target tc (settc) before trying to use these */
-#define read_vpe_c0_vpecontrol()       mftc0($1, 1)
-#define write_vpe_c0_vpecontrol(val)   mttc0($1, 1, val)
-#define read_vpe_c0_vpeconf0()         mftc0($1, 2)
-#define write_vpe_c0_vpeconf0(val)     mttc0($1, 2, val)
-#define read_vpe_c0_status()           mftc0($12, 0)
-#define write_vpe_c0_status(val)       mttc0($12, 0, val)
-#define read_vpe_c0_cause()            mftc0($13, 0)
-#define write_vpe_c0_cause(val)                mttc0($13, 0, val)
-#define read_vpe_c0_config()           mftc0($16, 0)
-#define write_vpe_c0_config(val)       mttc0($16, 0, val)
-#define read_vpe_c0_config1()          mftc0($16, 1)
-#define write_vpe_c0_config1(val)      mttc0($16, 1, val)
-#define read_vpe_c0_config7()          mftc0($16, 7)
-#define write_vpe_c0_config7(val)      mttc0($16, 7, val)
-#define read_vpe_c0_ebase()            mftc0($15,1)
-#define write_vpe_c0_ebase(val)                mttc0($15, 1, val)
-#define write_vpe_c0_compare(val)      mttc0($11, 0, val)
+#define read_vpe_c0_vpecontrol()       mftc0(1, 1)
+#define write_vpe_c0_vpecontrol(val)   mttc0(1, 1, val)
+#define read_vpe_c0_vpeconf0()         mftc0(1, 2)
+#define write_vpe_c0_vpeconf0(val)     mttc0(1, 2, val)
+#define read_vpe_c0_status()           mftc0(12, 0)
+#define write_vpe_c0_status(val)       mttc0(12, 0, val)
+#define read_vpe_c0_cause()            mftc0(13, 0)
+#define write_vpe_c0_cause(val)                mttc0(13, 0, val)
+#define read_vpe_c0_config()           mftc0(16, 0)
+#define write_vpe_c0_config(val)       mttc0(16, 0, val)
+#define read_vpe_c0_config1()          mftc0(16, 1)
+#define write_vpe_c0_config1(val)      mttc0(16, 1, val)
+#define read_vpe_c0_config7()          mftc0(16, 7)
+#define write_vpe_c0_config7(val)      mttc0(16, 7, val)
+#define read_vpe_c0_ebase()            mftc0(15,1)
+#define write_vpe_c0_ebase(val)                mttc0(15, 1, val)
+#define write_vpe_c0_compare(val)      mttc0(11, 0, val)
 
 
 /* TC */
-#define read_tc_c0_tcstatus()          mftc0($2, 1)
-#define write_tc_c0_tcstatus(val)      mttc0($2,1,val)
-#define read_tc_c0_tcbind()            mftc0($2, 2)
-#define write_tc_c0_tcbind(val)                mttc0($2,2,val)
-#define read_tc_c0_tcrestart()         mftc0($2, 3)
-#define write_tc_c0_tcrestart(val)     mttc0($2,3,val)
-#define read_tc_c0_tchalt()            mftc0($2, 4)
-#define write_tc_c0_tchalt(val)                mttc0($2,4,val)
-#define read_tc_c0_tccontext()         mftc0($2, 5)
-#define write_tc_c0_tccontext(val)     mttc0($2,5,val)
+#define read_tc_c0_tcstatus()          mftc0(2, 1)
+#define write_tc_c0_tcstatus(val)      mttc0(2,1,val)
+#define read_tc_c0_tcbind()            mftc0(2, 2)
+#define write_tc_c0_tcbind(val)                mttc0(2,2,val)
+#define read_tc_c0_tcrestart()         mftc0(2, 3)
+#define write_tc_c0_tcrestart(val)     mttc0(2,3,val)
+#define read_tc_c0_tchalt()            mftc0(2, 4)
+#define write_tc_c0_tchalt(val)                mttc0(2,4,val)
+#define read_tc_c0_tccontext()         mftc0(2, 5)
+#define write_tc_c0_tccontext(val)     mttc0(2,5,val)
 
 /* GPR */
-#define read_tc_gpr_sp()               mftgpr($29)
-#define write_tc_gpr_sp(val)           mttgpr($29, val)
-#define read_tc_gpr_gp()               mftgpr($28)
-#define write_tc_gpr_gp(val)           mttgpr($28, val)
+#define read_tc_gpr_sp()               mftgpr(29)
+#define write_tc_gpr_sp(val)           mttgpr(29, val)
+#define read_tc_gpr_gp()               mftgpr(28)
+#define write_tc_gpr_gp(val)           mttgpr(28, val)
 
 
 #endif /* Not __ASSEMBLY__ */

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