3 files changed, 37 insertions, 10 deletions

diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c
index be8627bc5b02..12af739048fa 100644
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -133,7 +133,7 @@ void __update_cache(struct vm_area_struct *vma, unsigned long address,
 }
 
 unsigned long _page_cachable_default;
-EXPORT_SYMBOL_GPL(_page_cachable_default);
+EXPORT_SYMBOL(_page_cachable_default);
 
 static inline void setup_protection_map(void)
 {
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 0de0e4127d66..d1f68aadbc4c 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -788,10 +788,15 @@ static void __cpuinit build_r4000_tlb_refill_handler(void)
          * create the plain linear handler
          */
         if (bcm1250_m3_war()) {
-                UASM_i_MFC0(&p, K0, C0_BADVADDR);
-                UASM_i_MFC0(&p, K1, C0_ENTRYHI);
+                unsigned int segbits = 44;
+
+                uasm_i_dmfc0(&p, K0, C0_BADVADDR);
+                uasm_i_dmfc0(&p, K1, C0_ENTRYHI);
                 uasm_i_xor(&p, K0, K0, K1);
-                UASM_i_SRL(&p, K0, K0, PAGE_SHIFT + 1);
+                uasm_i_dsrl32(&p, K1, K0, 62 - 32);
+                uasm_i_dsrl(&p, K0, K0, 12 + 1);
+                uasm_i_dsll32(&p, K0, K0, 64 + 12 + 1 - segbits - 32);
+                uasm_i_or(&p, K0, K0, K1);
                 uasm_il_bnez(&p, &r, K0, label_leave);
                 /* No need for uasm_i_nop */
         }
@@ -1312,10 +1317,15 @@ static void __cpuinit build_r4000_tlb_load_handler(void)
         memset(relocs, 0, sizeof(relocs));
 
         if (bcm1250_m3_war()) {
-                UASM_i_MFC0(&p, K0, C0_BADVADDR);
-                UASM_i_MFC0(&p, K1, C0_ENTRYHI);
+                unsigned int segbits = 44;
+
+                uasm_i_dmfc0(&p, K0, C0_BADVADDR);
+                uasm_i_dmfc0(&p, K1, C0_ENTRYHI);
                 uasm_i_xor(&p, K0, K0, K1);
-                UASM_i_SRL(&p, K0, K0, PAGE_SHIFT + 1);
+                uasm_i_dsrl32(&p, K1, K0, 62 - 32);
+                uasm_i_dsrl(&p, K0, K0, 12 + 1);
+                uasm_i_dsll32(&p, K0, K0, 64 + 12 + 1 - segbits - 32);
+                uasm_i_or(&p, K0, K0, K1);
                 uasm_il_bnez(&p, &r, K0, label_leave);
                 /* No need for uasm_i_nop */
         }
diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c
index 1581e9852461..611d564fdcf1 100644
--- a/arch/mips/mm/uasm.c
+++ b/arch/mips/mm/uasm.c
@@ -31,7 +31,8 @@ enum fields {
         BIMM = 0x040,
         JIMM = 0x080,
         FUNC = 0x100,
-        SET = 0x200
+        SET = 0x200,
+        SCIMM = 0x400
 };
 
 #define OP_MASK         0x3f
@@ -52,6 +53,8 @@ enum fields {
 #define FUNC_SH         0
 #define SET_MASK        0x7
 #define SET_SH          0
+#define SCIMM_MASK      0xfffff
+#define SCIMM_SH        6
 
 enum opcode {
         insn_invalid,
@@ -61,10 +64,10 @@ enum opcode {
         insn_dmtc0, insn_dsll, insn_dsll32, insn_dsra, insn_dsrl,
         insn_dsrl32, insn_drotr, insn_dsubu, insn_eret, insn_j, insn_jal,
         insn_jr, insn_ld, insn_ll, insn_lld, insn_lui, insn_lw, insn_mfc0,
-        insn_mtc0, insn_ori, insn_pref, insn_rfe, insn_sc, insn_scd,
+        insn_mtc0, insn_or, insn_ori, insn_pref, insn_rfe, insn_sc, insn_scd,
         insn_sd, insn_sll, insn_sra, insn_srl, insn_rotr, insn_subu, insn_sw,
         insn_tlbp, insn_tlbr, insn_tlbwi, insn_tlbwr, insn_xor, insn_xori,
-        insn_dins
+        insn_dins, insn_syscall
 };
 
 struct insn {
@@ -117,6 +120,7 @@ static struct insn insn_table[] __cpuinitdata = {
         { insn_lw,  M(lw_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
         { insn_mfc0,  M(cop0_op, mfc_op, 0, 0, 0, 0),  RT | RD | SET},
         { insn_mtc0,  M(cop0_op, mtc_op, 0, 0, 0, 0),  RT | RD | SET},
+        { insn_or,  M(spec_op, 0, 0, 0, 0, or_op),  RS | RT | RD },
         { insn_ori,  M(ori_op, 0, 0, 0, 0, 0),  RS | RT | UIMM },
         { insn_pref,  M(pref_op, 0, 0, 0, 0, 0),  RS | RT | SIMM },
         { insn_rfe,  M(cop0_op, cop_op, 0, 0, 0, rfe_op),  0 },
@@ -136,6 +140,7 @@ static struct insn insn_table[] __cpuinitdata = {
         { insn_xor,  M(spec_op, 0, 0, 0, 0, xor_op),  RS | RT | RD },
         { insn_xori,  M(xori_op, 0, 0, 0, 0, 0),  RS | RT | UIMM },
         { insn_dins, M(spec3_op, 0, 0, 0, 0, dins_op), RS | RT | RD | RE },
+        { insn_syscall, M(spec_op, 0, 0, 0, 0, syscall_op), SCIMM},
         { insn_invalid, 0, 0 }
 };
 
@@ -208,6 +213,14 @@ static inline __cpuinit u32 build_jimm(u32 arg)
         return (arg >> 2) & JIMM_MASK;
 }
 
+static inline __cpuinit u32 build_scimm(u32 arg)
+{
+        if (arg & ~SCIMM_MASK)
+                printk(KERN_WARNING "Micro-assembler field overflow\n");
+
+        return (arg & SCIMM_MASK) << SCIMM_SH;
+}
+
 static inline __cpuinit u32 build_func(u32 arg)
 {
         if (arg & ~FUNC_MASK)
@@ -266,6 +279,8 @@ static void __cpuinit build_insn(u32 **buf, enum opcode opc, ...)
                 op |= build_func(va_arg(ap, u32));
         if (ip->fields & SET)
                 op |= build_set(va_arg(ap, u32));
+        if (ip->fields & SCIMM)
+                op |= build_scimm(va_arg(ap, u32));
         va_end(ap);
 
         **buf = op;
@@ -373,6 +388,7 @@ I_u2s3u1(_lw)
 I_u1u2u3(_mfc0)
 I_u1u2u3(_mtc0)
 I_u2u1u3(_ori)
+I_u3u1u2(_or)
 I_u2s3u1(_pref)
 I_0(_rfe)
 I_u2s3u1(_sc)
@@ -391,6 +407,7 @@ I_0(_tlbwr)
 I_u3u1u2(_xor)
 I_u2u1u3(_xori)
 I_u2u1msbu3(_dins);
+I_u1(_syscall);
 
 /* Handle labels. */
 void __cpuinit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid)