[SPARC64]: SUN4V memory exception trap handlers.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
index ac17116..1e9a4b6 100644
--- a/arch/sparc64/kernel/traps.c
+++ b/arch/sparc64/kernel/traps.c
@@ -180,6 +180,45 @@
spitfire_insn_access_exception(regs, sfsr, sfar);
}
+void sun4v_insn_access_exception(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx)
+{
+ unsigned short type = (type_ctx >> 16);
+ unsigned short ctx = (type_ctx & 0xffff);
+ siginfo_t info;
+
+ if (notify_die(DIE_TRAP, "instruction access exception", regs,
+ 0, 0x8, SIGTRAP) == NOTIFY_STOP)
+ return;
+
+ if (regs->tstate & TSTATE_PRIV) {
+ printk("sun4v_insn_access_exception: ADDR[%016lx] "
+ "CTX[%04x] TYPE[%04x], going.\n",
+ addr, ctx, type);
+ die_if_kernel("Iax", regs);
+ }
+
+ if (test_thread_flag(TIF_32BIT)) {
+ regs->tpc &= 0xffffffff;
+ regs->tnpc &= 0xffffffff;
+ }
+ info.si_signo = SIGSEGV;
+ info.si_errno = 0;
+ info.si_code = SEGV_MAPERR;
+ info.si_addr = (void __user *) addr;
+ info.si_trapno = 0;
+ force_sig_info(SIGSEGV, &info, current);
+}
+
+void sun4v_insn_access_exception_tl1(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx)
+{
+ if (notify_die(DIE_TRAP_TL1, "instruction access exception tl1", regs,
+ 0, 0x8, SIGTRAP) == NOTIFY_STOP)
+ return;
+
+ dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
+ sun4v_insn_access_exception(regs, addr, type_ctx);
+}
+
void spitfire_data_access_exception(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar)
{
siginfo_t info;
@@ -228,6 +267,45 @@
spitfire_data_access_exception(regs, sfsr, sfar);
}
+void sun4v_data_access_exception(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx)
+{
+ unsigned short type = (type_ctx >> 16);
+ unsigned short ctx = (type_ctx & 0xffff);
+ siginfo_t info;
+
+ if (notify_die(DIE_TRAP, "data access exception", regs,
+ 0, 0x8, SIGTRAP) == NOTIFY_STOP)
+ return;
+
+ if (regs->tstate & TSTATE_PRIV) {
+ printk("sun4v_data_access_exception: ADDR[%016lx] "
+ "CTX[%04x] TYPE[%04x], going.\n",
+ addr, ctx, type);
+ die_if_kernel("Iax", regs);
+ }
+
+ if (test_thread_flag(TIF_32BIT)) {
+ regs->tpc &= 0xffffffff;
+ regs->tnpc &= 0xffffffff;
+ }
+ info.si_signo = SIGSEGV;
+ info.si_errno = 0;
+ info.si_code = SEGV_MAPERR;
+ info.si_addr = (void __user *) addr;
+ info.si_trapno = 0;
+ force_sig_info(SIGSEGV, &info, current);
+}
+
+void sun4v_data_access_exception_tl1(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx)
+{
+ if (notify_die(DIE_TRAP_TL1, "data access exception tl1", regs,
+ 0, 0x8, SIGTRAP) == NOTIFY_STOP)
+ return;
+
+ dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
+ sun4v_data_access_exception(regs, addr, type_ctx);
+}
+
#ifdef CONFIG_PCI
/* This is really pathetic... */
extern volatile int pci_poke_in_progress;
@@ -2150,6 +2228,8 @@
force_sig_info(SIGILL, &info, current);
}
+extern void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn);
+
void mem_address_unaligned(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr)
{
siginfo_t info;
@@ -2159,13 +2239,7 @@
return;
if (regs->tstate & TSTATE_PRIV) {
- extern void kernel_unaligned_trap(struct pt_regs *regs,
- unsigned int insn,
- unsigned long sfar,
- unsigned long sfsr);
-
- kernel_unaligned_trap(regs, *((unsigned int *)regs->tpc),
- sfar, sfsr);
+ kernel_unaligned_trap(regs, *((unsigned int *)regs->tpc));
return;
}
info.si_signo = SIGBUS;
@@ -2176,6 +2250,26 @@
force_sig_info(SIGBUS, &info, current);
}
+void sun4v_mna(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx)
+{
+ siginfo_t info;
+
+ if (notify_die(DIE_TRAP, "memory address unaligned", regs,
+ 0, 0x34, SIGSEGV) == NOTIFY_STOP)
+ return;
+
+ if (regs->tstate & TSTATE_PRIV) {
+ kernel_unaligned_trap(regs, *((unsigned int *)regs->tpc));
+ return;
+ }
+ info.si_signo = SIGBUS;
+ info.si_errno = 0;
+ info.si_code = BUS_ADRALN;
+ info.si_addr = (void __user *) addr;
+ info.si_trapno = 0;
+ force_sig_info(SIGBUS, &info, current);
+}
+
void do_privop(struct pt_regs *regs)
{
siginfo_t info;