[Qemu-ppc] [PATCH v2] target-ppc: move POWER7+ to a separate family

[Alexey Kardashevskiy]

So far POWER7+ was a part of POWER7 family. However it has a different
PVR base value so in order to support PVR masks, it needs a separate
family class.

Another reason to make a POWER7+ family is that its name in the device
tree (/proc/device-tree/cpus/cpu*) should be "Power7+" but not "Power7"
and this cannot be easily fixed without a new family class.

This adds a new family class, PVR base and mask values and moves
Power7+ v2.1 CPU to a new family. The class init function is copied
from the POWER7 family.

Signed-off-by: Alexey Kardashevskiy <address@hidden>
---
Changes:
v2:
* added VSX enable bit
---
 target-ppc/cpu-models.c     |  2 +-
 target-ppc/cpu-models.h     |  2 ++
 target-ppc/translate_init.c | 38 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 41 insertions(+), 1 deletion(-)

diff --git a/target-ppc/cpu-models.c b/target-ppc/cpu-models.c
index 04d88c5..7c9466f 100644
--- a/target-ppc/cpu-models.c
+++ b/target-ppc/cpu-models.c
@@ -1140,7 +1140,7 @@
                 "POWER7 v2.1")
     POWERPC_DEF("POWER7_v2.3",   CPU_POWERPC_POWER7_v23,             POWER7,
                 "POWER7 v2.3")
-    POWERPC_DEF("POWER7+_v2.1",  CPU_POWERPC_POWER7P_v21,            POWER7,
+    POWERPC_DEF("POWER7+_v2.1",  CPU_POWERPC_POWER7P_v21,            POWER7P,
                 "POWER7+ v2.1")
     POWERPC_DEF("POWER8_v1.0",   CPU_POWERPC_POWER8_v10,             POWER8,
                 "POWER8 v1.0")
diff --git a/target-ppc/cpu-models.h b/target-ppc/cpu-models.h
index 731ec4a..49ba4a4 100644
--- a/target-ppc/cpu-models.h
+++ b/target-ppc/cpu-models.h
@@ -558,6 +558,8 @@ enum {
     CPU_POWERPC_POWER7_v20         = 0x003F0200,
     CPU_POWERPC_POWER7_v21         = 0x003F0201,
     CPU_POWERPC_POWER7_v23         = 0x003F0203,
+    CPU_POWERPC_POWER7P_BASE       = 0x004A0000,
+    CPU_POWERPC_POWER7P_MASK       = 0xFFFF0000,
     CPU_POWERPC_POWER7P_v21        = 0x004A0201,
     CPU_POWERPC_POWER8_BASE        = 0x004B0000,
     CPU_POWERPC_POWER8_MASK        = 0xFFFF0000,
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 35d1389..c030a20 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -7253,6 +7253,44 @@ POWERPC_FAMILY(POWER7)(ObjectClass *oc, void *data)
     pcc->l1_icache_size = 0x8000;
 }
 
+POWERPC_FAMILY(POWER7P)(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+    PowerPCCPUClass *pcc = POWERPC_CPU_CLASS(oc);
+
+    dc->fw_name = "PowerPC,POWER7+";
+    dc->desc = "POWER7+";
+    pcc->pvr = CPU_POWERPC_POWER7P_BASE;
+    pcc->pvr_mask = CPU_POWERPC_POWER7P_MASK;
+    pcc->init_proc = init_proc_POWER7;
+    pcc->check_pow = check_pow_nocheck;
+    pcc->insns_flags = PPC_INSNS_BASE | PPC_ISEL | PPC_STRING | PPC_MFTB |
+                       PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |
+                       PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE |
+                       PPC_FLOAT_STFIWX |
+                       PPC_CACHE | PPC_CACHE_ICBI | PPC_CACHE_DCBZ |
+                       PPC_MEM_SYNC | PPC_MEM_EIEIO |
+                       PPC_MEM_TLBIE | PPC_MEM_TLBSYNC |
+                       PPC_64B | PPC_ALTIVEC |
+                       PPC_SEGMENT_64B | PPC_SLBI |
+                       PPC_POPCNTB | PPC_POPCNTWD;
+    pcc->insns_flags2 = PPC2_VSX | PPC2_DFP | PPC2_DBRX | PPC2_ISA205;
+    pcc->msr_mask = 0x800000000204FF37ULL;
+    pcc->mmu_model = POWERPC_MMU_2_06;
+#if defined(CONFIG_SOFTMMU)
+    pcc->handle_mmu_fault = ppc_hash64_handle_mmu_fault;
+#endif
+    pcc->excp_model = POWERPC_EXCP_POWER7;
+    pcc->bus_model = PPC_FLAGS_INPUT_POWER7;
+    pcc->bfd_mach = bfd_mach_ppc64;
+    pcc->flags = POWERPC_FLAG_VRE | POWERPC_FLAG_SE |
+                 POWERPC_FLAG_BE | POWERPC_FLAG_PMM |
+                 POWERPC_FLAG_BUS_CLK | POWERPC_FLAG_CFAR |
+                 POWERPC_FLAG_VSX;
+    pcc->l1_dcache_size = 0x8000;
+    pcc->l1_icache_size = 0x8000;
+}
+
 POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(oc);
-- 
1.8.4.rc4