]> pilppa.com Git - linux-2.6-omap-h63xx.git/commitdiff
[SPARC64]: Move kernel unaligned trap handlers into assembler file.
authorDavid S. Miller <davem@davemloft.net>
Fri, 19 Aug 2005 22:55:33 +0000 (15:55 -0700)
committerDavid S. Miller <davem@davemloft.net>
Fri, 19 Aug 2005 22:55:33 +0000 (15:55 -0700)
GCC 4.x really dislikes the games we are playing in
unaligned.c, and the cleanest way to fix this is to
move things into assembler.

Noted by Al Viro.

Signed-off-by: David S. Miller <davem@davemloft.net>
arch/sparc64/kernel/Makefile
arch/sparc64/kernel/traps.c
arch/sparc64/kernel/una_asm.S [new file with mode: 0644]
arch/sparc64/kernel/unaligned.c
include/asm-sparc64/thread_info.h

index 093281bdf85f688c7a867daf0283a2df90e921b9..6f00ab8b9d23ab6b79897acca6899b559c4dbaa4 100644 (file)
@@ -8,7 +8,7 @@ EXTRA_CFLAGS := -Werror
 extra-y                := head.o init_task.o vmlinux.lds
 
 obj-y          := process.o setup.o cpu.o idprom.o \
-                  traps.o devices.o auxio.o \
+                  traps.o devices.o auxio.o una_asm.o \
                   irq.o ptrace.o time.o sys_sparc.o signal.o \
                   unaligned.o central.o pci.o starfire.o semaphore.o \
                   power.o sbus.o iommu_common.o sparc64_ksyms.o chmc.o
index 100b0107c4be89b1484c8b370dd8898871cfe10f..0c9e54b2f0c8874d08d01159a5365a7f7afa9f2a 100644 (file)
@@ -2127,6 +2127,9 @@ void __init trap_init(void)
            TI_PRE_COUNT != offsetof(struct thread_info, preempt_count) ||
            TI_NEW_CHILD != offsetof(struct thread_info, new_child) ||
            TI_SYS_NOERROR != offsetof(struct thread_info, syscall_noerror) ||
+           TI_RESTART_BLOCK != offsetof(struct thread_info, restart_block) ||
+           TI_KUNA_REGS != offsetof(struct thread_info, kern_una_regs) ||
+           TI_KUNA_INSN != offsetof(struct thread_info, kern_una_insn) ||
            TI_FPREGS != offsetof(struct thread_info, fpregs) ||
            (TI_FPREGS & (64 - 1)))
                thread_info_offsets_are_bolixed_dave();
diff --git a/arch/sparc64/kernel/una_asm.S b/arch/sparc64/kernel/una_asm.S
new file mode 100644 (file)
index 0000000..cbb4058
--- /dev/null
@@ -0,0 +1,153 @@
+/* una_asm.S: Kernel unaligned trap assembler helpers.
+ *
+ * Copyright (C) 1996,2005 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ */
+
+       .text
+
+kernel_unaligned_trap_fault:
+       call    kernel_mna_trap_fault
+        nop
+       retl
+        nop
+       .size   kern_unaligned_trap_fault, .-kern_unaligned_trap_fault
+
+       .globl  __do_int_store
+__do_int_store:
+       rd      %asi, %o4
+       wr      %o3, 0, %asi
+       ldx     [%o2], %g3
+       cmp     %o1, 2
+       be,pn   %icc, 2f
+        cmp    %o1, 4
+       be,pt   %icc, 1f
+        srlx   %g3, 24, %g2
+       srlx    %g3, 56, %g1
+       srlx    %g3, 48, %g7
+4:     stba    %g1, [%o0] %asi
+       srlx    %g3, 40, %g1
+5:     stba    %g7, [%o0 + 1] %asi
+       srlx    %g3, 32, %g7
+6:     stba    %g1, [%o0 + 2] %asi
+7:     stba    %g7, [%o0 + 3] %asi
+       srlx    %g3, 16, %g1
+8:     stba    %g2, [%o0 + 4] %asi
+       srlx    %g3, 8, %g7
+9:     stba    %g1, [%o0 + 5] %asi
+10:    stba    %g7, [%o0 + 6] %asi
+       ba,pt   %xcc, 0f
+11:     stba   %g3, [%o0 + 7] %asi
+1:     srl     %g3, 16, %g7
+12:    stba    %g2, [%o0] %asi
+       srl     %g3, 8, %g2
+13:    stba    %g7, [%o0 + 1] %asi
+14:    stba    %g2, [%o0 + 2] %asi
+       ba,pt   %xcc, 0f
+15:     stba   %g3, [%o0 + 3] %asi
+2:     srl     %g3, 8, %g2
+16:    stba    %g2, [%o0] %asi
+17:    stba    %g3, [%o0 + 1] %asi
+0:
+       wr      %o4, 0x0, %asi
+       retl
+        nop
+       .size   __do_int_store, .-__do_int_store
+
+       .section        __ex_table
+       .word           4b, kernel_unaligned_trap_fault
+       .word           5b, kernel_unaligned_trap_fault
+       .word           6b, kernel_unaligned_trap_fault
+       .word           7b, kernel_unaligned_trap_fault
+       .word           8b, kernel_unaligned_trap_fault
+       .word           9b, kernel_unaligned_trap_fault
+       .word           10b, kernel_unaligned_trap_fault
+       .word           11b, kernel_unaligned_trap_fault
+       .word           12b, kernel_unaligned_trap_fault
+       .word           13b, kernel_unaligned_trap_fault
+       .word           14b, kernel_unaligned_trap_fault
+       .word           15b, kernel_unaligned_trap_fault
+       .word           16b, kernel_unaligned_trap_fault
+       .word           17b, kernel_unaligned_trap_fault
+       .previous
+
+       .globl  do_int_load
+do_int_load:
+       rd      %asi, %o5
+       wr      %o4, 0, %asi
+       cmp     %o1, 8
+       bge,pn  %icc, 9f
+        cmp    %o1, 4
+       be,pt   %icc, 6f
+4:      lduba  [%o2] %asi, %g2
+5:     lduba   [%o2 + 1] %asi, %g3
+       sll     %g2, 8, %g2
+       brz,pt  %o3, 3f
+        add    %g2, %g3, %g2
+       sllx    %g2, 48, %g2
+       srax    %g2, 48, %g2
+3:     ba,pt   %xcc, 0f
+        stx    %g2, [%o0]
+6:     lduba   [%o2 + 1] %asi, %g3
+       sll     %g2, 24, %g2
+7:     lduba   [%o2 + 2] %asi, %g7
+       sll     %g3, 16, %g3
+8:     lduba   [%o2 + 3] %asi, %g1
+       sll     %g7, 8, %g7
+       or      %g2, %g3, %g2
+       or      %g7, %g1, %g7
+       or      %g2, %g7, %g2
+       brnz,a,pt %o3, 3f
+        sra    %g2, 0, %g2
+3:     ba,pt   %xcc, 0f
+        stx    %g2, [%o0]
+9:     lduba   [%o2] %asi, %g2
+10:    lduba   [%o2 + 1] %asi, %g3
+       sllx    %g2, 56, %g2
+11:    lduba   [%o2 + 2] %asi, %g7
+       sllx    %g3, 48, %g3
+12:    lduba   [%o2 + 3] %asi, %g1
+       sllx    %g7, 40, %g7
+       sllx    %g1, 32, %g1
+       or      %g2, %g3, %g2
+       or      %g7, %g1, %g7
+13:    lduba   [%o2 + 4] %asi, %g3
+       or      %g2, %g7, %g7
+14:    lduba   [%o2 + 5] %asi, %g1
+       sllx    %g3, 24, %g3
+15:    lduba   [%o2 + 6] %asi, %g2
+       sllx    %g1, 16, %g1
+       or      %g7, %g3, %g7
+16:    lduba   [%o2 + 7] %asi, %g3
+       sllx    %g2, 8, %g2
+       or      %g7, %g1, %g7
+       or      %g2, %g3, %g2
+       or      %g7, %g2, %g7
+       cmp     %o1, 8
+       be,a,pt %icc, 0f
+        stx    %g7, [%o0]
+       srlx    %g7, 32, %g2
+       sra     %g7, 0, %g7
+       stx     %g2, [%o0]
+       stx     %g7, [%o0 + 8]
+0:
+       wr      %o5, 0x0, %asi
+       retl
+        nop
+       .size   __do_int_load, .-__do_int_load
+
+       .section        __ex_table
+       .word           4b, kernel_unaligned_trap_fault
+       .word           5b, kernel_unaligned_trap_fault
+       .word           6b, kernel_unaligned_trap_fault
+       .word           7b, kernel_unaligned_trap_fault
+       .word           8b, kernel_unaligned_trap_fault
+       .word           9b, kernel_unaligned_trap_fault
+       .word           10b, kernel_unaligned_trap_fault
+       .word           11b, kernel_unaligned_trap_fault
+       .word           12b, kernel_unaligned_trap_fault
+       .word           13b, kernel_unaligned_trap_fault
+       .word           14b, kernel_unaligned_trap_fault
+       .word           15b, kernel_unaligned_trap_fault
+       .word           16b, kernel_unaligned_trap_fault
+       .previous
index 4372bf32ecf6f28eb69ff2b8e31b3e7197b5af5d..11c3e88732e482ba54da15452ea38c45f1b0c713 100644 (file)
@@ -180,169 +180,28 @@ static void __attribute_used__ unaligned_panic(char *str, struct pt_regs *regs)
        die_if_kernel(str, regs);
 }
 
-#define do_integer_load(dest_reg, size, saddr, is_signed, asi, errh) ({                \
-__asm__ __volatile__ (                                                         \
-       "wr     %4, 0, %%asi\n\t"                                               \
-       "cmp    %1, 8\n\t"                                                      \
-       "bge,pn %%icc, 9f\n\t"                                                  \
-       " cmp   %1, 4\n\t"                                                      \
-       "be,pt  %%icc, 6f\n"                                                    \
-"4:\t" " lduba [%2] %%asi, %%l1\n"                                             \
-"5:\t" "lduba  [%2 + 1] %%asi, %%l2\n\t"                                       \
-       "sll    %%l1, 8, %%l1\n\t"                                              \
-       "brz,pt %3, 3f\n\t"                                                     \
-       " add   %%l1, %%l2, %%l1\n\t"                                           \
-       "sllx   %%l1, 48, %%l1\n\t"                                             \
-       "srax   %%l1, 48, %%l1\n"                                               \
-"3:\t" "ba,pt  %%xcc, 0f\n\t"                                                  \
-       " stx   %%l1, [%0]\n"                                                   \
-"6:\t" "lduba  [%2 + 1] %%asi, %%l2\n\t"                                       \
-       "sll    %%l1, 24, %%l1\n"                                               \
-"7:\t" "lduba  [%2 + 2] %%asi, %%g7\n\t"                                       \
-       "sll    %%l2, 16, %%l2\n"                                               \
-"8:\t" "lduba  [%2 + 3] %%asi, %%g1\n\t"                                       \
-       "sll    %%g7, 8, %%g7\n\t"                                              \
-       "or     %%l1, %%l2, %%l1\n\t"                                           \
-       "or     %%g7, %%g1, %%g7\n\t"                                           \
-       "or     %%l1, %%g7, %%l1\n\t"                                           \
-       "brnz,a,pt %3, 3f\n\t"                                                  \
-       " sra   %%l1, 0, %%l1\n"                                                \
-"3:\t" "ba,pt  %%xcc, 0f\n\t"                                                  \
-       " stx   %%l1, [%0]\n"                                                   \
-"9:\t" "lduba  [%2] %%asi, %%l1\n"                                             \
-"10:\t"        "lduba  [%2 + 1] %%asi, %%l2\n\t"                                       \
-       "sllx   %%l1, 56, %%l1\n"                                               \
-"11:\t"        "lduba  [%2 + 2] %%asi, %%g7\n\t"                                       \
-       "sllx   %%l2, 48, %%l2\n"                                               \
-"12:\t"        "lduba  [%2 + 3] %%asi, %%g1\n\t"                                       \
-       "sllx   %%g7, 40, %%g7\n\t"                                             \
-       "sllx   %%g1, 32, %%g1\n\t"                                             \
-       "or     %%l1, %%l2, %%l1\n\t"                                           \
-       "or     %%g7, %%g1, %%g7\n"                                             \
-"13:\t"        "lduba  [%2 + 4] %%asi, %%l2\n\t"                                       \
-       "or     %%l1, %%g7, %%g7\n"                                             \
-"14:\t"        "lduba  [%2 + 5] %%asi, %%g1\n\t"                                       \
-       "sllx   %%l2, 24, %%l2\n"                                               \
-"15:\t"        "lduba  [%2 + 6] %%asi, %%l1\n\t"                                       \
-       "sllx   %%g1, 16, %%g1\n\t"                                             \
-       "or     %%g7, %%l2, %%g7\n"                                             \
-"16:\t"        "lduba  [%2 + 7] %%asi, %%l2\n\t"                                       \
-       "sllx   %%l1, 8, %%l1\n\t"                                              \
-       "or     %%g7, %%g1, %%g7\n\t"                                           \
-       "or     %%l1, %%l2, %%l1\n\t"                                           \
-       "or     %%g7, %%l1, %%g7\n\t"                                           \
-       "cmp    %1, 8\n\t"                                                      \
-       "be,a,pt %%icc, 0f\n\t"                                                 \
-       " stx   %%g7, [%0]\n\t"                                                 \
-       "srlx   %%g7, 32, %%l1\n\t"                                             \
-       "sra    %%g7, 0, %%g7\n\t"                                              \
-       "stx    %%l1, [%0]\n\t"                                                 \
-       "stx    %%g7, [%0 + 8]\n"                                               \
-"0:\n\t"                                                                       \
-       "wr     %%g0, %5, %%asi\n\n\t"                                          \
-       ".section __ex_table\n\t"                                               \
-       ".word  4b, " #errh "\n\t"                                              \
-       ".word  5b, " #errh "\n\t"                                              \
-       ".word  6b, " #errh "\n\t"                                              \
-       ".word  7b, " #errh "\n\t"                                              \
-       ".word  8b, " #errh "\n\t"                                              \
-       ".word  9b, " #errh "\n\t"                                              \
-       ".word  10b, " #errh "\n\t"                                             \
-       ".word  11b, " #errh "\n\t"                                             \
-       ".word  12b, " #errh "\n\t"                                             \
-       ".word  13b, " #errh "\n\t"                                             \
-       ".word  14b, " #errh "\n\t"                                             \
-       ".word  15b, " #errh "\n\t"                                             \
-       ".word  16b, " #errh "\n\n\t"                                           \
-       ".previous\n\t"                                                         \
-       : : "r" (dest_reg), "r" (size), "r" (saddr), "r" (is_signed),           \
-         "r" (asi), "i" (ASI_AIUS)                                             \
-       : "l1", "l2", "g7", "g1", "cc");                                        \
-})
+extern void do_int_load(unsigned long *dest_reg, int size,
+                       unsigned long *saddr, int is_signed, int asi);
        
-#define store_common(dst_addr, size, src_val, asi, errh) ({                    \
-__asm__ __volatile__ (                                                         \
-       "wr     %3, 0, %%asi\n\t"                                               \
-       "ldx    [%2], %%l1\n"                                                   \
-       "cmp    %1, 2\n\t"                                                      \
-       "be,pn  %%icc, 2f\n\t"                                                  \
-       " cmp   %1, 4\n\t"                                                      \
-       "be,pt  %%icc, 1f\n\t"                                                  \
-       " srlx  %%l1, 24, %%l2\n\t"                                             \
-       "srlx   %%l1, 56, %%g1\n\t"                                             \
-       "srlx   %%l1, 48, %%g7\n"                                               \
-"4:\t" "stba   %%g1, [%0] %%asi\n\t"                                           \
-       "srlx   %%l1, 40, %%g1\n"                                               \
-"5:\t" "stba   %%g7, [%0 + 1] %%asi\n\t"                                       \
-       "srlx   %%l1, 32, %%g7\n"                                               \
-"6:\t" "stba   %%g1, [%0 + 2] %%asi\n"                                         \
-"7:\t" "stba   %%g7, [%0 + 3] %%asi\n\t"                                       \
-       "srlx   %%l1, 16, %%g1\n"                                               \
-"8:\t" "stba   %%l2, [%0 + 4] %%asi\n\t"                                       \
-       "srlx   %%l1, 8, %%g7\n"                                                \
-"9:\t" "stba   %%g1, [%0 + 5] %%asi\n"                                         \
-"10:\t"        "stba   %%g7, [%0 + 6] %%asi\n\t"                                       \
-       "ba,pt  %%xcc, 0f\n"                                                    \
-"11:\t"        " stba  %%l1, [%0 + 7] %%asi\n"                                         \
-"1:\t" "srl    %%l1, 16, %%g7\n"                                               \
-"12:\t"        "stba   %%l2, [%0] %%asi\n\t"                                           \
-       "srl    %%l1, 8, %%l2\n"                                                \
-"13:\t"        "stba   %%g7, [%0 + 1] %%asi\n"                                         \
-"14:\t"        "stba   %%l2, [%0 + 2] %%asi\n\t"                                       \
-       "ba,pt  %%xcc, 0f\n"                                                    \
-"15:\t"        " stba  %%l1, [%0 + 3] %%asi\n"                                         \
-"2:\t" "srl    %%l1, 8, %%l2\n"                                                \
-"16:\t"        "stba   %%l2, [%0] %%asi\n"                                             \
-"17:\t"        "stba   %%l1, [%0 + 1] %%asi\n"                                         \
-"0:\n\t"                                                                       \
-       "wr     %%g0, %4, %%asi\n\n\t"                                          \
-       ".section __ex_table\n\t"                                               \
-       ".word  4b, " #errh "\n\t"                                              \
-       ".word  5b, " #errh "\n\t"                                              \
-       ".word  6b, " #errh "\n\t"                                              \
-       ".word  7b, " #errh "\n\t"                                              \
-       ".word  8b, " #errh "\n\t"                                              \
-       ".word  9b, " #errh "\n\t"                                              \
-       ".word  10b, " #errh "\n\t"                                             \
-       ".word  11b, " #errh "\n\t"                                             \
-       ".word  12b, " #errh "\n\t"                                             \
-       ".word  13b, " #errh "\n\t"                                             \
-       ".word  14b, " #errh "\n\t"                                             \
-       ".word  15b, " #errh "\n\t"                                             \
-       ".word  16b, " #errh "\n\t"                                             \
-       ".word  17b, " #errh "\n\n\t"                                           \
-       ".previous\n\t"                                                         \
-       : : "r" (dst_addr), "r" (size), "r" (src_val), "r" (asi), "i" (ASI_AIUS)\
-       : "l1", "l2", "g7", "g1", "cc");                                        \
-})
-
-#define do_integer_store(reg_num, size, dst_addr, regs, asi, errh) ({          \
-       unsigned long zero = 0;                                                 \
-       unsigned long *src_val = &zero;                                         \
-                                                                               \
-       if (size == 16) {                                                       \
-               size = 8;                                                       \
-               zero = (((long)(reg_num ?                                       \
-                       (unsigned)fetch_reg(reg_num, regs) : 0)) << 32) |       \
-                       (unsigned)fetch_reg(reg_num + 1, regs);                 \
-       } else if (reg_num) src_val = fetch_reg_addr(reg_num, regs);            \
-       store_common(dst_addr, size, src_val, asi, errh);                       \
-})
-
-extern void smp_capture(void);
-extern void smp_release(void);
-
-#define do_atomic(srcdest_reg, mem, errh) ({                                   \
-       unsigned long flags, tmp;                                               \
-                                                                               \
-       smp_capture();                                                          \
-       local_irq_save(flags);                                                  \
-       tmp = *srcdest_reg;                                                     \
-       do_integer_load(srcdest_reg, 4, mem, 0, errh);                          \
-       store_common(mem, 4, &tmp, errh);                                       \
-       local_irq_restore(flags);                                               \
-       smp_release();                                                          \
-})
+extern void __do_int_store(unsigned long *dst_addr, int size,
+                          unsigned long *src_val, int asi);
+
+static inline void do_int_store(int reg_num, int size, unsigned long *dst_addr,
+                               struct pt_regs *regs, int asi)
+{
+       unsigned long zero = 0;
+       unsigned long *src_val = &zero;
+
+       if (size == 16) {
+               size = 8;
+               zero = (((long)(reg_num ?
+                       (unsigned)fetch_reg(reg_num, regs) : 0)) << 32) |
+                       (unsigned)fetch_reg(reg_num + 1, regs);
+       } else if (reg_num) {
+               src_val = fetch_reg_addr(reg_num, regs);
+       }
+       __do_int_store(dst_addr, size, src_val, asi);
+}
 
 static inline void advance(struct pt_regs *regs)
 {
@@ -364,24 +223,29 @@ static inline int ok_for_kernel(unsigned int insn)
        return !floating_point_load_or_store_p(insn);
 }
 
-void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn) __asm__ ("kernel_mna_trap_fault");
-
-void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn)
+void kernel_mna_trap_fault(void)
 {
-       unsigned long g2 = regs->u_regs [UREG_G2];
+       struct pt_regs *regs = current_thread_info()->kern_una_regs;
+       unsigned int insn = current_thread_info()->kern_una_insn;
+       unsigned long g2 = regs->u_regs[UREG_G2];
        unsigned long fixup = search_extables_range(regs->tpc, &g2);
 
        if (!fixup) {
-               unsigned long address = compute_effective_address(regs, insn, ((insn >> 25) & 0x1f));
+               unsigned long address;
+
+               address = compute_effective_address(regs, insn,
+                                                   ((insn >> 25) & 0x1f));
                if (address < PAGE_SIZE) {
-                       printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference in mna handler");
+                       printk(KERN_ALERT "Unable to handle kernel NULL "
+                              "pointer dereference in mna handler");
                } else
-                       printk(KERN_ALERT "Unable to handle kernel paging request in mna handler");
+                       printk(KERN_ALERT "Unable to handle kernel paging "
+                              "request in mna handler");
                printk(KERN_ALERT " at virtual address %016lx\n",address);
-               printk(KERN_ALERT "current->{mm,active_mm}->context = %016lx\n",
+               printk(KERN_ALERT "current->{active_,}mm->context = %016lx\n",
                        (current->mm ? CTX_HWBITS(current->mm->context) :
                        CTX_HWBITS(current->active_mm->context)));
-               printk(KERN_ALERT "current->{mm,active_mm}->pgd = %016lx\n",
+               printk(KERN_ALERT "current->{active_,}mm->pgd = %016lx\n",
                        (current->mm ? (unsigned long) current->mm->pgd :
                        (unsigned long) current->active_mm->pgd));
                die_if_kernel("Oops", regs);
@@ -400,48 +264,41 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u
        enum direction dir = decode_direction(insn);
        int size = decode_access_size(insn);
 
+       current_thread_info()->kern_una_regs = regs;
+       current_thread_info()->kern_una_insn = insn;
+
        if (!ok_for_kernel(insn) || dir == both) {
-               printk("Unsupported unaligned load/store trap for kernel at <%016lx>.\n",
-                      regs->tpc);
-               unaligned_panic("Kernel does fpu/atomic unaligned load/store.", regs);
-
-               __asm__ __volatile__ ("\n"
-"kernel_unaligned_trap_fault:\n\t"
-               "mov    %0, %%o0\n\t"
-               "call   kernel_mna_trap_fault\n\t"
-               " mov   %1, %%o1\n\t"
-               :
-               : "r" (regs), "r" (insn)
-               : "o0", "o1", "o2", "o3", "o4", "o5", "o7",
-                 "g1", "g2", "g3", "g4", "g7", "cc");
+               printk("Unsupported unaligned load/store trap for kernel "
+                      "at <%016lx>.\n", regs->tpc);
+               unaligned_panic("Kernel does fpu/atomic "
+                               "unaligned load/store.", regs);
+
+               kernel_mna_trap_fault();
        } else {
-               unsigned long addr = compute_effective_address(regs, insn, ((insn >> 25) & 0x1f));
+               unsigned long addr;
 
+               addr = compute_effective_address(regs, insn,
+                                                ((insn >> 25) & 0x1f));
 #ifdef DEBUG_MNA
-               printk("KMNA: pc=%016lx [dir=%s addr=%016lx size=%d] retpc[%016lx]\n",
-                      regs->tpc, dirstrings[dir], addr, size, regs->u_regs[UREG_RETPC]);
+               printk("KMNA: pc=%016lx [dir=%s addr=%016lx size=%d] "
+                      "retpc[%016lx]\n",
+                      regs->tpc, dirstrings[dir], addr, size,
+                      regs->u_regs[UREG_RETPC]);
 #endif
                switch (dir) {
                case load:
-                       do_integer_load(fetch_reg_addr(((insn>>25)&0x1f), regs),
-                                       size, (unsigned long *) addr,
-                                       decode_signedness(insn), decode_asi(insn, regs),
-                                       kernel_unaligned_trap_fault);
+                       do_int_load(fetch_reg_addr(((insn>>25)&0x1f), regs),
+                                   size, (unsigned long *) addr,
+                                   decode_signedness(insn),
+                                   decode_asi(insn, regs));
                        break;
 
                case store:
-                       do_integer_store(((insn>>25)&0x1f), size,
-                                        (unsigned long *) addr, regs,
-                                        decode_asi(insn, regs),
-                                        kernel_unaligned_trap_fault);
-                       break;
-#if 0 /* unsupported */
-               case both:
-                       do_atomic(fetch_reg_addr(((insn>>25)&0x1f), regs),
-                                 (unsigned long *) addr,
-                                 kernel_unaligned_trap_fault);
+                       do_int_store(((insn>>25)&0x1f), size,
+                                    (unsigned long *) addr, regs,
+                                    decode_asi(insn, regs));
                        break;
-#endif
+
                default:
                        panic("Impossible kernel unaligned trap.");
                        /* Not reached... */
index 352d9943661af3738a05c0b29748a8937692f44f..c94d8b3991bdde0cf93be99e258f8798298db7e3 100644 (file)
@@ -68,6 +68,9 @@ struct thread_info {
 
        struct restart_block    restart_block;
 
+       struct pt_regs          *kern_una_regs;
+       unsigned int            kern_una_insn;
+
        unsigned long           fpregs[0] __attribute__ ((aligned(64)));
 };
 
@@ -103,6 +106,8 @@ struct thread_info {
 #define TI_PCR         0x00000490
 #define TI_CEE_STUFF   0x00000498
 #define TI_RESTART_BLOCK 0x000004a0
+#define TI_KUNA_REGS   0x000004c8
+#define TI_KUNA_INSN   0x000004d0
 #define TI_FPREGS      0x00000500
 
 /* We embed this in the uppermost byte of thread_info->flags */