[Qemu-devel] [PATCH v3 4/4] target-ppc: add vprtyb[w/d/q] instructions

[Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>]

From: Ankit Kumar <ankit@linux.vnet.ibm.com>

Add following POWER ISA 3.0 instructions.
vprtybw: Vector Parity Byte Word
vprtybd: Vector Parity Byte Double Word
vprtybq: Vector Parity Byte Quad Word

Signed-off-by: Ankit Kumar <ankit@linux.vnet.ibm.com>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
---
 target-ppc/helper.h                 |  3 +++
 target-ppc/int_helper.c             | 34 ++++++++++++++++++++++++++++++++++
 target-ppc/translate/vmx-impl.inc.c |  3 +++
 target-ppc/translate/vmx-ops.inc.c  |  4 ++++
 4 files changed, 44 insertions(+)

diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index 5fa2469..201a8cf 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -223,6 +223,9 @@ DEF_HELPER_3(vsro, void, avr, avr, avr)
 DEF_HELPER_3(vsrv, void, avr, avr, avr)
 DEF_HELPER_3(vslv, void, avr, avr, avr)
 DEF_HELPER_3(vaddcuw, void, avr, avr, avr)
+DEF_HELPER_2(vprtybw, void, avr, avr)
+DEF_HELPER_2(vprtybd, void, avr, avr)
+DEF_HELPER_2(vprtybq, void, avr, avr)
 DEF_HELPER_3(vsubcuw, void, avr, avr, avr)
 DEF_HELPER_2(lvsl, void, avr, tl)
 DEF_HELPER_2(lvsr, void, avr, tl)
diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c
index 8237bf5..92684cf 100644
--- a/target-ppc/int_helper.c
+++ b/target-ppc/int_helper.c
@@ -528,6 +528,40 @@ void helper_vaddcuw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
     }
 }
 
+/* vprtybw */
+void helper_vprtybw(ppc_avr_t *r, ppc_avr_t *b)
+{
+    int i;
+    for (i = 0; i < ARRAY_SIZE(r->u32); i++) {
+        uint64_t res = b->u32[i] ^ (b->u32[i] >> 16);
+        res ^= res >> 8;
+        r->u32[i] = res & 1;
+    }
+}
+
+/* vprtybd */
+void helper_vprtybd(ppc_avr_t *r, ppc_avr_t *b)
+{
+    int i;
+    for (i = 0; i < ARRAY_SIZE(r->u64); i++) {
+        uint64_t res = b->u64[i] ^ (b->u64[i] >> 32);
+        res ^= res >> 16;
+        res ^= res >> 8;
+        r->u64[i] = res & 1;
+    }
+}
+
+/* vprtybq */
+void helper_vprtybq(ppc_avr_t *r, ppc_avr_t *b)
+{
+    uint64_t res = b->u64[0] ^ b->u64[1];
+    res ^= res >> 32;
+    res ^= res >> 16;
+    res ^= res >> 8;
+    r->u64[LO_IDX] = res & 1;
+    r->u64[HI_IDX] = 0;
+}
+
 #define VARITH_DO(name, op, element)                                    \
     void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)       \
     {                                                                   \
diff --git a/target-ppc/translate/vmx-impl.inc.c b/target-ppc/translate/vmx-impl.inc.c
index 500c43f..e1d0897 100644
--- a/target-ppc/translate/vmx-impl.inc.c
+++ b/target-ppc/translate/vmx-impl.inc.c
@@ -705,6 +705,9 @@ GEN_VXFORM_NOA_ENV(vrfim, 5, 11);
 GEN_VXFORM_NOA_ENV(vrfin, 5, 8);
 GEN_VXFORM_NOA_ENV(vrfip, 5, 10);
 GEN_VXFORM_NOA_ENV(vrfiz, 5, 9);
+GEN_VXFORM_NOA(vprtybw, 1, 24);
+GEN_VXFORM_NOA(vprtybd, 1, 24);
+GEN_VXFORM_NOA(vprtybq, 1, 24);
 
 #define GEN_VXFORM_SIMM(name, opc2, opc3)                               \
 static void glue(gen_, name)(DisasContext *ctx)                                 \
diff --git a/target-ppc/translate/vmx-ops.inc.c b/target-ppc/translate/vmx-ops.inc.c
index a5ad4d4..c631780 100644
--- a/target-ppc/translate/vmx-ops.inc.c
+++ b/target-ppc/translate/vmx-ops.inc.c
@@ -122,6 +122,10 @@ GEN_VXFORM_300(vslv, 2, 29),
 GEN_VXFORM(vslo, 6, 16),
 GEN_VXFORM(vsro, 6, 17),
 GEN_VXFORM(vaddcuw, 0, 6),
+GEN_HANDLER_E_2(vprtybw, 0x4, 0x1, 0x18, 8, 0, PPC_NONE, PPC2_ISA300),
+GEN_HANDLER_E_2(vprtybd, 0x4, 0x1, 0x18, 9, 0, PPC_NONE, PPC2_ISA300),
+GEN_HANDLER_E_2(vprtybq, 0x4, 0x1, 0x18, 10, 0, PPC_NONE, PPC2_ISA300),
+
 GEN_VXFORM(vsubcuw, 0, 22),
 GEN_VXFORM_DUAL(vaddubs, vmul10uq, 0, 8, PPC_ALTIVEC, PPC_NONE),
 GEN_VXFORM_DUAL(vadduhs, vmul10euq, 0, 9, PPC_ALTIVEC, PPC_NONE),
-- 
2.7.4