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authorDavid S. Miller <davem@davemloft.net>2015-03-03 21:16:48 -0500
committerDavid S. Miller <davem@davemloft.net>2015-03-03 21:16:48 -0500
commit71a83a6db6138b9d41d8a0b6b91cb59f6dc4742c (patch)
treef74b6e4e48257ec6ce40b95645ecb8533b9cc1f8 /arch/mips/kernel/entry.S
parentb97526f3ff95f92b107f0fb52cbb8627e395429b (diff)
parenta6c5170d1edea97c538c81e377e56c7b5c5b7e63 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/ethernet/rocker/rocker.c The rocker commit was two overlapping changes, one to rename the ->vport member to ->pport, and another making the bitmask expression use '1ULL' instead of plain '1'. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/mips/kernel/entry.S')
-rw-r--r--arch/mips/kernel/entry.S23
1 files changed, 21 insertions, 2 deletions
diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
index 4353d323f017..af41ba6db960 100644
--- a/arch/mips/kernel/entry.S
+++ b/arch/mips/kernel/entry.S
@@ -46,6 +46,11 @@ resume_userspace:
local_irq_disable # make sure we dont miss an
# interrupt setting need_resched
# between sampling and return
+#ifdef CONFIG_MIPSR2_TO_R6_EMULATOR
+ lw k0, TI_R2_EMUL_RET($28)
+ bnez k0, restore_all_from_r2_emul
+#endif
+
LONG_L a2, TI_FLAGS($28) # current->work
andi t0, a2, _TIF_WORK_MASK # (ignoring syscall_trace)
bnez t0, work_pending
@@ -114,6 +119,19 @@ restore_partial: # restore partial frame
RESTORE_SP_AND_RET
.set at
+#ifdef CONFIG_MIPSR2_TO_R6_EMULATOR
+restore_all_from_r2_emul: # restore full frame
+ .set noat
+ sw zero, TI_R2_EMUL_RET($28) # reset it
+ RESTORE_TEMP
+ RESTORE_AT
+ RESTORE_STATIC
+ RESTORE_SOME
+ LONG_L sp, PT_R29(sp)
+ eretnc
+ .set at
+#endif
+
work_pending:
andi t0, a2, _TIF_NEED_RESCHED # a2 is preloaded with TI_FLAGS
beqz t0, work_notifysig
@@ -158,7 +176,8 @@ syscall_exit_work:
jal syscall_trace_leave
b resume_userspace
-#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_MIPS_MT)
+#if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6) || \
+ defined(CONFIG_MIPS_MT)
/*
* MIPS32R2 Instruction Hazard Barrier - must be called
@@ -171,4 +190,4 @@ LEAF(mips_ihb)
nop
END(mips_ihb)
-#endif /* CONFIG_CPU_MIPSR2 or CONFIG_MIPS_MT */
+#endif /* CONFIG_CPU_MIPSR2 or CONFIG_CPU_MIPSR6 or CONFIG_MIPS_MT */