[SPARC64]: Fix gcc-3.3.x warnings.

It doesn't like const variables being passed into
"i" constraing asm operations.  It's a bug, but
there is nothing we can really do but work around
it.

Based upon a report from Andrew Morton.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h
index 00eecbb..bc446f3 100644 (file)
--- a/include/asm-sparc64/pgtable.h
+++ b/include/asm-sparc64/pgtable.h
@@ -232,13 +232,8 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot)
        unsigned long paddr = pfn << PAGE_SHIFT;
        unsigned long sz_bits;
 
-       BUILD_BUG_ON(!__builtin_constant_p(_PAGE_SZBITS_4U) ||
-                    !__builtin_constant_p(_PAGE_SZBITS_4V));
-
        sz_bits = 0UL;
        if (_PAGE_SZBITS_4U != 0UL || _PAGE_SZBITS_4V != 0UL) {
-               BUILD_BUG_ON((_PAGE_SZBITS_4U & ~(0xfffffc0000000000UL)) ||
-                            (_PAGE_SZBITS_4V & ~(0x0000000000000fffUL)));
                __asm__ __volatile__(
                "\n661: sethi           %uhi(%1), %0\n"
                "       sllx            %0, 32, %0\n"
@@ -257,10 +252,6 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot)
 /* This one can be done with two shifts.  */
 static inline unsigned long pte_pfn(pte_t pte)
 {
-       const unsigned long pte_paddr_shl_sun4u = 21;
-       const unsigned long pte_paddr_shr_sun4u = 21 + PAGE_SHIFT;
-       const unsigned long pte_paddr_shl_sun4v =  8;
-       const unsigned long pte_paddr_shr_sun4v =  8 + PAGE_SHIFT;
        unsigned long ret;
 
        __asm__ __volatile__(
@@ -273,8 +264,8 @@ static inline unsigned long pte_pfn(pte_t pte)
        "       .previous\n"
        : "=r" (ret)
        : "r" (pte_val(pte)),
-         "i" (pte_paddr_shl_sun4u), "i" (pte_paddr_shr_sun4u),
-         "i" (pte_paddr_shl_sun4v), "i" (pte_paddr_shr_sun4v));
+         "i" (21), "i" (21 + PAGE_SHIFT),
+         "i" (8), "i" (8 + PAGE_SHIFT));
 
        return ret;
 }
@@ -282,22 +273,6 @@ static inline unsigned long pte_pfn(pte_t pte)
 
 static inline pte_t pte_modify(pte_t pte, pgprot_t prot)
 {
-       const unsigned long preserve_mask_sun4u = (_PAGE_PADDR_4U |
-                                                  _PAGE_MODIFIED_4U |
-                                                  _PAGE_ACCESSED_4U |
-                                                  _PAGE_CP_4U |
-                                                  _PAGE_CV_4U |
-                                                  _PAGE_E_4U |
-                                                  _PAGE_PRESENT_4U |
-                                                  _PAGE_SZBITS_4U);
-       const unsigned long preserve_mask_sun4v = (_PAGE_PADDR_4V |
-                                                  _PAGE_MODIFIED_4V |
-                                                  _PAGE_ACCESSED_4V |
-                                                  _PAGE_CP_4V |
-                                                  _PAGE_CV_4V |
-                                                  _PAGE_E_4V |
-                                                  _PAGE_PRESENT_4V |
-                                                  _PAGE_SZBITS_4V);
        unsigned long mask, tmp;
 
        /* SUN4U: 0x600307ffffffecb8 (negated == 0x9ffcf80000001347)
@@ -329,7 +304,12 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t prot)
        "       or              %0, %1, %0\n"
        "       .previous\n"
        : "=r" (mask), "=r" (tmp)
-       : "i" (preserve_mask_sun4u), "i" (preserve_mask_sun4v));
+       : "i" (_PAGE_PADDR_4U | _PAGE_MODIFIED_4U | _PAGE_ACCESSED_4U |
+              _PAGE_CP_4U | _PAGE_CV_4U | _PAGE_E_4U | _PAGE_PRESENT_4U |
+              _PAGE_SZBITS_4U),
+         "i" (_PAGE_PADDR_4V | _PAGE_MODIFIED_4V | _PAGE_ACCESSED_4V |
+              _PAGE_CP_4V | _PAGE_CV_4V | _PAGE_E_4V | _PAGE_PRESENT_4V |
+              _PAGE_SZBITS_4V));
 
        return __pte((pte_val(pte) & mask) | (pgprot_val(prot) & ~mask));
 }
@@ -338,9 +318,6 @@ static inline pte_t pgoff_to_pte(unsigned long off)
 {
        off <<= PAGE_SHIFT;
 
-       BUILD_BUG_ON((_PAGE_FILE_4U & ~0xfffUL) ||
-                    (_PAGE_FILE_4V & ~0xfffUL));
-
        __asm__ __volatile__(
        "\n661: or              %0, %2, %0\n"
        "       .section        .sun4v_1insn_patch, \"ax\"\n"
@@ -357,9 +334,6 @@ static inline pgprot_t pgprot_noncached(pgprot_t prot)
 {
        unsigned long val = pgprot_val(prot);
 
-       BUILD_BUG_ON(((_PAGE_CP_4U | _PAGE_CP_4U | _PAGE_E_4U) & ~(0xfffUL)) ||
-                    ((_PAGE_CP_4V | _PAGE_CP_4V | _PAGE_E_4V) & ~(0xfffUL)));
-
        __asm__ __volatile__(
        "\n661: andn            %0, %2, %0\n"
        "       or              %0, %3, %0\n"
@@ -382,13 +356,8 @@ static inline pgprot_t pgprot_noncached(pgprot_t prot)
 
 static inline pte_t pte_mkhuge(pte_t pte)
 {
-       const unsigned long mask_4u = _PAGE_SZHUGE_4U;
-       const unsigned long mask_4v = _PAGE_SZHUGE_4V;
        unsigned long mask;
 
-       BUILD_BUG_ON((mask_4u & ~(0xfffffc0000000000UL)) ||
-                    (mask_4v & ~(0xfffUL)));
-
        __asm__ __volatile__(
        "\n661: sethi           %%uhi(%1), %0\n"
        "       sllx            %0, 32, %0\n"
@@ -398,20 +367,15 @@ static inline pte_t pte_mkhuge(pte_t pte)
        "       nop\n"
        "       .previous\n"
        : "=r" (mask)
-       : "i" (mask_4u), "i" (mask_4v));
+       : "i" (_PAGE_SZHUGE_4U), "i" (_PAGE_SZHUGE_4V));
 
        return __pte(pte_val(pte) | mask);
 }
 
 static inline pte_t pte_mkdirty(pte_t pte)
 {
-       const unsigned long mask_4u = _PAGE_MODIFIED_4U | _PAGE_W_4U;
-       const unsigned long mask_4v = _PAGE_MODIFIED_4V | _PAGE_W_4V;
        unsigned long val = pte_val(pte), tmp;
 
-       BUILD_BUG_ON((mask_4u & ~(0x0000000000000fffUL)) ||
-                    (mask_4v & ~(0xfffffc0000000fffUL)));
-
        __asm__ __volatile__(
        "\n661: or              %0, %3, %0\n"
        "       nop\n"
@@ -426,20 +390,16 @@ static inline pte_t pte_mkdirty(pte_t pte)
        "       or              %0, %1, %0\n"
        "       .previous\n"
        : "=r" (val), "=r" (tmp)
-       : "0" (val), "i" (mask_4u), "i" (mask_4v));
+       : "0" (val), "i" (_PAGE_MODIFIED_4U | _PAGE_W_4U),
+         "i" (_PAGE_MODIFIED_4V | _PAGE_W_4V));
 
        return __pte(val);
 }
 
 static inline pte_t pte_mkclean(pte_t pte)
 {
-       const unsigned long mask_4u = _PAGE_MODIFIED_4U | _PAGE_W_4U;
-       const unsigned long mask_4v = _PAGE_MODIFIED_4V | _PAGE_W_4V;
        unsigned long val = pte_val(pte), tmp;
 
-       BUILD_BUG_ON((mask_4u & ~(0x0000000000000fffUL)) ||
-                    (mask_4v & ~(0xfffffc0000000fffUL)));
-
        __asm__ __volatile__(
        "\n661: andn            %0, %3, %0\n"
        "       nop\n"
@@ -454,20 +414,16 @@ static inline pte_t pte_mkclean(pte_t pte)
        "       andn            %0, %1, %0\n"
        "       .previous\n"
        : "=r" (val), "=r" (tmp)
-       : "0" (val), "i" (mask_4u), "i" (mask_4v));
+       : "0" (val), "i" (_PAGE_MODIFIED_4U | _PAGE_W_4U),
+         "i" (_PAGE_MODIFIED_4V | _PAGE_W_4V));
 
        return __pte(val);
 }
 
 static inline pte_t pte_mkwrite(pte_t pte)
 {
-       const unsigned long mask_4u = _PAGE_WRITE_4U;
-       const unsigned long mask_4v = _PAGE_WRITE_4V;
        unsigned long val = pte_val(pte), mask;
 
-       BUILD_BUG_ON((mask_4u & ~(0x0000000000000fffUL)) ||
-                    (mask_4v & ~(0xfffffc0000000000UL)));
-
        __asm__ __volatile__(
        "\n661: mov             %1, %0\n"
        "       nop\n"
@@ -477,20 +433,15 @@ static inline pte_t pte_mkwrite(pte_t pte)
        "       sllx            %0, 32, %0\n"
        "       .previous\n"
        : "=r" (mask)
-       : "i" (mask_4u), "i" (mask_4v));
+       : "i" (_PAGE_WRITE_4U), "i" (_PAGE_WRITE_4V));
 
        return __pte(val | mask);
 }
 
 static inline pte_t pte_wrprotect(pte_t pte)
 {
-       const unsigned long mask_4u = _PAGE_WRITE_4U | _PAGE_W_4U;
-       const unsigned long mask_4v = _PAGE_WRITE_4V | _PAGE_W_4V;
        unsigned long val = pte_val(pte), tmp;
 
-       BUILD_BUG_ON((mask_4u & ~(0x0000000000000fffUL)) ||
-                    (mask_4v & ~(0xfffffc0000000fffUL)));
-
        __asm__ __volatile__(
        "\n661: andn            %0, %3, %0\n"
        "       nop\n"
@@ -505,20 +456,16 @@ static inline pte_t pte_wrprotect(pte_t pte)
        "       andn            %0, %1, %0\n"
        "       .previous\n"
        : "=r" (val), "=r" (tmp)
-       : "0" (val), "i" (mask_4u), "i" (mask_4v));
+       : "0" (val), "i" (_PAGE_WRITE_4U | _PAGE_W_4U),
+         "i" (_PAGE_WRITE_4V | _PAGE_W_4V));
 
        return __pte(val);
 }
 
 static inline pte_t pte_mkold(pte_t pte)
 {
-       const unsigned long mask_4u = _PAGE_ACCESSED_4U;
-       const unsigned long mask_4v = _PAGE_ACCESSED_4V;
        unsigned long mask;
 
-       BUILD_BUG_ON((mask_4u & ~(0x0000000000000fffUL)) ||
-                    (mask_4v & ~(0xfffffc0000000000UL)));
-
        __asm__ __volatile__(
        "\n661: mov             %1, %0\n"
        "       nop\n"
@@ -528,7 +475,7 @@ static inline pte_t pte_mkold(pte_t pte)
        "       sllx            %0, 32, %0\n"
        "       .previous\n"
        : "=r" (mask)
-       : "i" (mask_4u), "i" (mask_4v));
+       : "i" (_PAGE_ACCESSED_4U), "i" (_PAGE_ACCESSED_4V));
 
        mask |= _PAGE_R;
 
@@ -537,13 +484,8 @@ static inline pte_t pte_mkold(pte_t pte)
 
 static inline pte_t pte_mkyoung(pte_t pte)
 {
-       const unsigned long mask_4u = _PAGE_ACCESSED_4U;
-       const unsigned long mask_4v = _PAGE_ACCESSED_4V;
        unsigned long mask;
 
-       BUILD_BUG_ON((mask_4u & ~(0x0000000000000fffUL)) ||
-                    (mask_4v & ~(0xfffffc0000000000UL)));
-
        __asm__ __volatile__(
        "\n661: mov             %1, %0\n"
        "       nop\n"
@@ -553,7 +495,7 @@ static inline pte_t pte_mkyoung(pte_t pte)
        "       sllx            %0, 32, %0\n"
        "       .previous\n"
        : "=r" (mask)
-       : "i" (mask_4u), "i" (mask_4v));
+       : "i" (_PAGE_ACCESSED_4U), "i" (_PAGE_ACCESSED_4V));
 
        mask |= _PAGE_R;
 
@@ -562,13 +504,8 @@ static inline pte_t pte_mkyoung(pte_t pte)
 
 static inline unsigned long pte_young(pte_t pte)
 {
-       const unsigned long mask_4u = _PAGE_ACCESSED_4U;
-       const unsigned long mask_4v = _PAGE_ACCESSED_4V;
        unsigned long mask;
 
-       BUILD_BUG_ON((mask_4u & ~(0x0000000000000fffUL)) ||
-                    (mask_4v & ~(0xfffffc0000000000UL)));
-
        __asm__ __volatile__(
        "\n661: mov             %1, %0\n"
        "       nop\n"
@@ -578,20 +515,15 @@ static inline unsigned long pte_young(pte_t pte)
        "       sllx            %0, 32, %0\n"
        "       .previous\n"
        : "=r" (mask)
-       : "i" (mask_4u), "i" (mask_4v));
+       : "i" (_PAGE_ACCESSED_4U), "i" (_PAGE_ACCESSED_4V));
 
        return (pte_val(pte) & mask);
 }
 
 static inline unsigned long pte_dirty(pte_t pte)
 {
-       const unsigned long mask_4u = _PAGE_MODIFIED_4U;
-       const unsigned long mask_4v = _PAGE_MODIFIED_4V;
        unsigned long mask;
 
-       BUILD_BUG_ON((mask_4u & ~(0x0000000000000fffUL)) ||
-                    (mask_4v & ~(0xfffffc0000000000UL)));
-
        __asm__ __volatile__(
        "\n661: mov             %1, %0\n"
        "       nop\n"
@@ -601,20 +533,15 @@ static inline unsigned long pte_dirty(pte_t pte)
        "       sllx            %0, 32, %0\n"
        "       .previous\n"
        : "=r" (mask)
-       : "i" (mask_4u), "i" (mask_4v));
+       : "i" (_PAGE_MODIFIED_4U), "i" (_PAGE_MODIFIED_4V));
 
        return (pte_val(pte) & mask);
 }
 
 static inline unsigned long pte_write(pte_t pte)
 {
-       const unsigned long mask_4u = _PAGE_WRITE_4U;
-       const unsigned long mask_4v = _PAGE_WRITE_4V;
        unsigned long mask;
 
-       BUILD_BUG_ON((mask_4u & ~(0x0000000000000fffUL)) ||
-                    (mask_4v & ~(0xfffffc0000000000UL)));
-
        __asm__ __volatile__(
        "\n661: mov             %1, %0\n"
        "       nop\n"
@@ -624,20 +551,15 @@ static inline unsigned long pte_write(pte_t pte)
        "       sllx            %0, 32, %0\n"
        "       .previous\n"
        : "=r" (mask)
-       : "i" (mask_4u), "i" (mask_4v));
+       : "i" (_PAGE_WRITE_4U), "i" (_PAGE_WRITE_4V));
 
        return (pte_val(pte) & mask);
 }
 
 static inline unsigned long pte_exec(pte_t pte)
 {
-       const unsigned long mask_4u = _PAGE_EXEC_4U;
-       const unsigned long mask_4v = _PAGE_EXEC_4V;
        unsigned long mask;
 
-       BUILD_BUG_ON((mask_4u & ~(0x00000000fffffc00UL)) ||
-                    (mask_4v & ~(0x0000000000000fffUL)));
-
        __asm__ __volatile__(
        "\n661: sethi           %%hi(%1), %0\n"
        "       .section        .sun4v_1insn_patch, \"ax\"\n"
@@ -645,20 +567,15 @@ static inline unsigned long pte_exec(pte_t pte)
        "       mov             %2, %0\n"
        "       .previous\n"
        : "=r" (mask)
-       : "i" (mask_4u), "i" (mask_4v));
+       : "i" (_PAGE_EXEC_4U), "i" (_PAGE_EXEC_4V));
 
        return (pte_val(pte) & mask);
 }
 
 static inline unsigned long pte_read(pte_t pte)
 {
-       const unsigned long mask_4u = _PAGE_READ_4U;
-       const unsigned long mask_4v = _PAGE_READ_4V;
        unsigned long mask;
 
-       BUILD_BUG_ON((mask_4u & ~(0x0000000000000fffUL)) ||
-                    (mask_4v & ~(0xfffffc0000000000UL)));
-
        __asm__ __volatile__(
        "\n661: mov             %1, %0\n"
        "       nop\n"
@@ -668,20 +585,15 @@ static inline unsigned long pte_read(pte_t pte)
        "       sllx            %0, 32, %0\n"
        "       .previous\n"
        : "=r" (mask)
-       : "i" (mask_4u), "i" (mask_4v));
+       : "i" (_PAGE_READ_4U), "i" (_PAGE_READ_4V));
 
        return (pte_val(pte) & mask);
 }
 
 static inline unsigned long pte_file(pte_t pte)
 {
-       const unsigned long mask_4u = _PAGE_FILE_4U;
-       const unsigned long mask_4v = _PAGE_FILE_4V;
        unsigned long val = pte_val(pte);
 
-       BUILD_BUG_ON((mask_4u & ~(0x0000000000000fffUL)) ||
-                    (mask_4v & ~(0x0000000000000fffUL)));
-
        __asm__ __volatile__(
        "\n661: and             %0, %2, %0\n"
        "       .section        .sun4v_1insn_patch, \"ax\"\n"
@@ -689,20 +601,15 @@ static inline unsigned long pte_file(pte_t pte)
        "       and             %0, %3, %0\n"
        "       .previous\n"
        : "=r" (val)
-       : "0" (val), "i" (mask_4u), "i" (mask_4v));
+       : "0" (val), "i" (_PAGE_FILE_4U), "i" (_PAGE_FILE_4V));
 
        return val;
 }
 
 static inline unsigned long pte_present(pte_t pte)
 {
-       const unsigned long mask_4u = _PAGE_PRESENT_4U;
-       const unsigned long mask_4v = _PAGE_PRESENT_4V;
        unsigned long val = pte_val(pte);
 
-       BUILD_BUG_ON((mask_4u & ~(0x0000000000000fffUL)) ||
-                    (mask_4v & ~(0x0000000000000fffUL)));
-
        __asm__ __volatile__(
        "\n661: and             %0, %2, %0\n"
        "       .section        .sun4v_1insn_patch, \"ax\"\n"
@@ -710,7 +617,7 @@ static inline unsigned long pte_present(pte_t pte)
        "       and             %0, %3, %0\n"
        "       .previous\n"
        : "=r" (val)
-       : "0" (val), "i" (mask_4u), "i" (mask_4v));
+       : "0" (val), "i" (_PAGE_PRESENT_4U), "i" (_PAGE_PRESENT_4V));
 
        return val;
 }