[Qemu-devel] [PATCH for-next 3/4] target-ppc: Prepare POWER5P CPU family

["Andreas Färber" <afaerber@suse.de>]

It is ISA 2.03. Modelled as 970FX minus AltiVec flag.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-ppc/cpu-models.c     |   2 -
 target-ppc/translate_init.c | 104 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 104 insertions(+), 2 deletions(-)

diff --git a/target-ppc/cpu-models.c b/target-ppc/cpu-models.c
index 3f7a6f4..f2604eb 100644
--- a/target-ppc/cpu-models.c
+++ b/target-ppc/cpu-models.c
@@ -1121,10 +1121,8 @@
     POWERPC_DEF("POWER5",        CPU_POWERPC_POWER5,                 POWER5,
                 "POWER5")
 #endif
-#if defined(TODO)
     POWERPC_DEF("POWER5+",       CPU_POWERPC_POWER5P,                POWER5P,
                 "POWER5+")
-#endif
 #if defined(TODO)
     POWERPC_DEF("POWER6",        CPU_POWERPC_POWER6,                 POWER6,
                 "POWER6")
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index b14aec8..13b290c 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -7023,6 +7023,110 @@ POWERPC_FAMILY(970MP)(ObjectClass *oc, void *data)
                  POWERPC_FLAG_BUS_CLK;
 }
 
+static void init_proc_power5plus(CPUPPCState *env)
+{
+    gen_spr_ne_601(env);
+    gen_spr_7xx(env);
+    /* Time base */
+    gen_tbl(env);
+    /* Hardware implementation registers */
+    /* XXX : not implemented */
+    spr_register(env, SPR_HID0, "HID0",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_write_clear,
+                 0x60000000);
+    /* XXX : not implemented */
+    spr_register(env, SPR_HID1, "HID1",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_write_generic,
+                 0x00000000);
+    /* XXX : not implemented */
+    spr_register(env, SPR_750FX_HID2, "HID2",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_write_generic,
+                 0x00000000);
+    /* XXX : not implemented */
+    spr_register(env, SPR_970_HID5, "HID5",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_write_generic,
+                 POWERPC970_HID5_INIT);
+    /* XXX : not implemented */
+    spr_register(env, SPR_L2CR, "L2CR",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, NULL,
+                 0x00000000);
+    /* Memory management */
+    /* XXX: not correct */
+    gen_low_BATs(env);
+    /* XXX : not implemented */
+    spr_register(env, SPR_MMUCFG, "MMUCFG",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, SPR_NOACCESS,
+                 0x00000000); /* TOFIX */
+    /* XXX : not implemented */
+    spr_register(env, SPR_MMUCSR0, "MMUCSR0",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_write_generic,
+                 0x00000000); /* TOFIX */
+    spr_register(env, SPR_HIOR, "SPR_HIOR",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_hior, &spr_write_hior,
+                 0x00000000);
+    spr_register(env, SPR_CTRL, "SPR_CTRL",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_write_generic,
+                 0x00000000);
+    spr_register(env, SPR_UCTRL, "SPR_UCTRL",
+                 SPR_NOACCESS, SPR_NOACCESS,
+                 &spr_read_generic, &spr_write_generic,
+                 0x00000000);
+    spr_register(env, SPR_VRSAVE, "SPR_VRSAVE",
+                 &spr_read_generic, &spr_write_generic,
+                 &spr_read_generic, &spr_write_generic,
+                 0x00000000);
+#if !defined(CONFIG_USER_ONLY)
+    env->slb_nr = 64;
+#endif
+    init_excp_970(env);
+    env->dcache_line_size = 128;
+    env->icache_line_size = 128;
+    /* Allocate hardware IRQ controller */
+    ppc970_irq_init(env);
+    /* Can't find information on what this should be on reset.  This
+     * value is the one used by 74xx processors. */
+    vscr_init(env, 0x00010000);
+}
+
+POWERPC_FAMILY(POWER5P)(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+    PowerPCCPUClass *pcc = POWERPC_CPU_CLASS(oc);
+
+    dc->desc = "POWER5+";
+    pcc->init_proc = init_proc_power5plus;
+    pcc->check_pow = check_pow_970FX;
+    pcc->insns_flags = PPC_INSNS_BASE | 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_SEGMENT_64B | PPC_SLBI;
+    pcc->msr_mask = 0x800000000204FF36ULL;
+    pcc->mmu_model = POWERPC_MMU_64B;
+#if defined(CONFIG_SOFTMMU)
+    pcc->handle_mmu_fault = ppc_hash64_handle_mmu_fault;
+#endif
+    pcc->excp_model = POWERPC_EXCP_970;
+    pcc->bus_model = PPC_FLAGS_INPUT_970;
+    pcc->bfd_mach = bfd_mach_ppc64;
+    pcc->flags = POWERPC_FLAG_VRE | POWERPC_FLAG_SE |
+                 POWERPC_FLAG_BE | POWERPC_FLAG_PMM |
+                 POWERPC_FLAG_BUS_CLK;
+}
+
 static void init_proc_POWER7 (CPUPPCState *env)
 {
     gen_spr_ne_601(env);
-- 
1.8.1.4