aboutsummaryrefslogtreecommitdiffstats
path: root/arch/mn10300/kernel/traps.c
diff options
context:
space:
mode:
authorAkira Takeuchi <takeuchi.akr@jp.panasonic.com>2010-10-27 12:28:52 -0400
committerDavid Howells <dhowells@redhat.com>2010-10-27 12:28:52 -0400
commit278d91c4609d55202c1e63d5fc5f01466cc7bbab (patch)
tree8b0c863837508959430c1741e2e5a2d37d2890d4 /arch/mn10300/kernel/traps.c
parent965ea4bbb9ae926358273368144ba838c561bc38 (diff)
MN10300: Make the FPU operate in non-lazy mode under SMP
Make the FPU operate in non-lazy mode under SMP so that when the process that is currently using the FPU migrates to a different CPU, we don't have to ping its previous CPU to flush the FPU context. Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: Kiyoshi Owada <owada.kiyoshi@jp.panasonic.com> Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'arch/mn10300/kernel/traps.c')
-rw-r--r--arch/mn10300/kernel/traps.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c
index c7257a1304a9..716a221df2f9 100644
--- a/arch/mn10300/kernel/traps.c
+++ b/arch/mn10300/kernel/traps.c
@@ -101,7 +101,6 @@ DO_EINFO(SIGILL, {}, "invalid opcode", invalid_op, ILL_ILLOPC);
101DO_EINFO(SIGILL, {}, "invalid ex opcode", invalid_exop, ILL_ILLOPC); 101DO_EINFO(SIGILL, {}, "invalid ex opcode", invalid_exop, ILL_ILLOPC);
102DO_EINFO(SIGBUS, {}, "invalid address", mem_error, BUS_ADRERR); 102DO_EINFO(SIGBUS, {}, "invalid address", mem_error, BUS_ADRERR);
103DO_EINFO(SIGBUS, {}, "bus error", bus_error, BUS_ADRERR); 103DO_EINFO(SIGBUS, {}, "bus error", bus_error, BUS_ADRERR);
104DO_EINFO(SIGILL, {}, "FPU invalid opcode", fpu_invalid_op, ILL_COPROC);
105 104
106DO_ERROR(SIGTRAP, 105DO_ERROR(SIGTRAP,
107#ifndef CONFIG_MN10300_USING_JTAG 106#ifndef CONFIG_MN10300_USING_JTAG
@@ -561,7 +560,6 @@ void __init trap_init(void)
561 set_excp_vector(EXCEP_PRIVINSACC, insn_acc_error); 560 set_excp_vector(EXCEP_PRIVINSACC, insn_acc_error);
562 set_excp_vector(EXCEP_PRIVDATACC, data_acc_error); 561 set_excp_vector(EXCEP_PRIVDATACC, data_acc_error);
563 set_excp_vector(EXCEP_DATINSACC, insn_acc_error); 562 set_excp_vector(EXCEP_DATINSACC, insn_acc_error);
564 set_excp_vector(EXCEP_FPU_DISABLED, fpu_disabled);
565 set_excp_vector(EXCEP_FPU_UNIMPINS, fpu_invalid_op); 563 set_excp_vector(EXCEP_FPU_UNIMPINS, fpu_invalid_op);
566 set_excp_vector(EXCEP_FPU_OPERATION, fpu_exception); 564 set_excp_vector(EXCEP_FPU_OPERATION, fpu_exception);
567 565