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| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/sparc/kernel/utrap.S | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/sparc/kernel/utrap.S')
| -rw-r--r-- | kernel/arch/sparc/kernel/utrap.S | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/kernel/arch/sparc/kernel/utrap.S b/kernel/arch/sparc/kernel/utrap.S new file mode 100644 index 000000000..b7f0f3f3a --- /dev/null +++ b/kernel/arch/sparc/kernel/utrap.S @@ -0,0 +1,29 @@ + .globl utrap_trap + .type utrap_trap,#function +utrap_trap: /* %g3=handler,%g4=level */ + TRAP_LOAD_THREAD_REG(%g6, %g1) + ldx [%g6 + TI_UTRAPS], %g1 + brnz,pt %g1, invoke_utrap + nop + + ba,pt %xcc, etrap + rd %pc, %g7 + mov %l4, %o1 + call bad_trap + add %sp, PTREGS_OFF, %o0 + ba,pt %xcc, rtrap + nop + +invoke_utrap: + sllx %g3, 3, %g3 + ldx [%g1 + %g3], %g1 + save %sp, -128, %sp + rdpr %tstate, %l6 + rdpr %cwp, %l7 + andn %l6, TSTATE_CWP, %l6 + wrpr %l6, %l7, %tstate + rdpr %tpc, %l6 + rdpr %tnpc, %l7 + wrpr %g1, 0, %tnpc + done + .size utrap_trap,.-utrap_trap |