From: David Daney <david.daney@cavium.com>
Date: Tue, 13 Jun 2017 16:49:37 -0700
Subject: bpf: Add MIPS support to samples/bpf.
Patch-mainline: v4.13-rc1
Git-commit: c1932cdb275e65cbef2f230f0df0c490fdd03c62
References: bsc#1109837

Signed-off-by: David Daney <david.daney@cavium.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 samples/bpf/bpf_helpers.h |   13 +++++++++++++
 1 file changed, 13 insertions(+)

--- a/samples/bpf/bpf_helpers.h
+++ b/samples/bpf/bpf_helpers.h
@@ -136,6 +136,19 @@ static int (*bpf_skb_change_head)(void *
 #define PT_REGS_SP(x) ((x)->sp)
 #define PT_REGS_IP(x) ((x)->pc)
 
+#elif defined(__mips__)
+
+#define PT_REGS_PARM1(x) ((x)->regs[4])
+#define PT_REGS_PARM2(x) ((x)->regs[5])
+#define PT_REGS_PARM3(x) ((x)->regs[6])
+#define PT_REGS_PARM4(x) ((x)->regs[7])
+#define PT_REGS_PARM5(x) ((x)->regs[8])
+#define PT_REGS_RET(x) ((x)->regs[31])
+#define PT_REGS_FP(x) ((x)->regs[30]) /* Works only with CONFIG_FRAME_POINTER */
+#define PT_REGS_RC(x) ((x)->regs[1])
+#define PT_REGS_SP(x) ((x)->regs[29])
+#define PT_REGS_IP(x) ((x)->cp0_epc)
+
 #elif defined(__powerpc__)
 
 #define PT_REGS_PARM1(x) ((x)->gpr[3])