* [Qemu-devel] [PATCH v3] e600 core for MPC86xx processors
@ 2013-06-24 21:15 Julio Guerra
2013-07-02 12:35 ` Alexander Graf
0 siblings, 1 reply; 2+ messages in thread
From: Julio Guerra @ 2013-06-24 21:15 UTC (permalink / raw)
To: qemu-devel, qemu-ppc; +Cc: Julio Guerra, Alexander Graf
MPC86xx processors are based on the e600 core, which is not the case
in qemu where it is based on the 7400 processor.
This patch creates the e600 core and instantiates the MPC86xx
processors based on it. Therefore, adding the high BATs, the SPRG
4..7 registers, which are e600-specific [1], and a HW MMU model (as 7400).
This allows to define the MPC8610 processor too.
Tested with a kernel using the HW TLB misses.
[1] http://cache.freescale.com/files/32bit/doc/ref_manual/E600CORERM.pdf
Signed-off-by: Julio Guerra <guerr@julio.in>
---
target-ppc/cpu-models.c | 10 ++--
target-ppc/cpu-models.h | 4 +-
target-ppc/translate_init.c | 125 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 130 insertions(+), 9 deletions(-)
diff --git a/target-ppc/cpu-models.c b/target-ppc/cpu-models.c
index 17f56b7..8a2ab50 100644
--- a/target-ppc/cpu-models.c
+++ b/target-ppc/cpu-models.c
@@ -792,17 +792,15 @@
POWERPC_DEF_SVR("MPC8572E", "MPC8572E",
CPU_POWERPC_MPC8572E, POWERPC_SVR_8572E, e500v2)
/* e600 family */
- POWERPC_DEF("e600", CPU_POWERPC_e600, 7400,
+ POWERPC_DEF("e600", CPU_POWERPC_e600, e600,
"PowerPC e600 core")
/* PowerPC e600 microcontrollers */
-#if defined(TODO)
POWERPC_DEF_SVR("MPC8610", "MPC8610",
- CPU_POWERPC_MPC8610, POWERPC_SVR_8610, 7400)
-#endif
+ CPU_POWERPC_MPC8610, POWERPC_SVR_8610, e600)
POWERPC_DEF_SVR("MPC8641", "MPC8641",
- CPU_POWERPC_MPC8641, POWERPC_SVR_8641, 7400)
+ CPU_POWERPC_MPC8641, POWERPC_SVR_8641, e600)
POWERPC_DEF_SVR("MPC8641D", "MPC8641D",
- CPU_POWERPC_MPC8641D, POWERPC_SVR_8641D, 7400)
+ CPU_POWERPC_MPC8641D, POWERPC_SVR_8641D, e600)
/* 32 bits "classic" PowerPC */
/* PowerPC 6xx family */
POWERPC_DEF("601_v0", CPU_POWERPC_601_v0, 601,
diff --git a/target-ppc/cpu-models.h b/target-ppc/cpu-models.h
index a94f835..8ba96bb 100644
--- a/target-ppc/cpu-models.h
+++ b/target-ppc/cpu-models.h
@@ -731,9 +731,7 @@ enum {
POWERPC_SVR_8568E = 0x807D0011 | POWERPC_SVR_E500,
POWERPC_SVR_8572 = 0x80E00010 | POWERPC_SVR_E500,
POWERPC_SVR_8572E = 0x80E80010 | POWERPC_SVR_E500,
-#if 0
- POWERPC_SVR_8610 = xxx,
-#endif
+ POWERPC_SVR_8610 = 0x80A00011,
POWERPC_SVR_8641 = 0x80900021,
POWERPC_SVR_8641D = 0x80900121,
};
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 021a31e..371390b 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -6525,6 +6525,131 @@ POWERPC_FAMILY(7457)(ObjectClass *oc, void *data)
POWERPC_FLAG_BUS_CLK;
}
+static void init_proc_e600 (CPUPPCState *env)
+{
+ gen_spr_ne_601(env);
+ gen_spr_7xx(env);
+ /* Time base */
+ gen_tbl(env);
+ /* 74xx specific SPR */
+ gen_spr_74xx(env);
+ /* XXX : not implemented */
+ spr_register(env, SPR_UBAMR, "UBAMR",
+ &spr_read_ureg, SPR_NOACCESS,
+ &spr_read_ureg, SPR_NOACCESS,
+ 0x00000000);
+ /* XXX : not implemented */
+ spr_register(env, SPR_LDSTCR, "LDSTCR",
+ SPR_NOACCESS, SPR_NOACCESS,
+ &spr_read_generic, &spr_write_generic,
+ 0x00000000);
+ /* XXX : not implemented */
+ spr_register(env, SPR_ICTRL, "ICTRL",
+ SPR_NOACCESS, SPR_NOACCESS,
+ &spr_read_generic, &spr_write_generic,
+ 0x00000000);
+ /* XXX : not implemented */
+ spr_register(env, SPR_MSSSR0, "MSSSR0",
+ SPR_NOACCESS, SPR_NOACCESS,
+ &spr_read_generic, &spr_write_generic,
+ 0x00000000);
+ /* XXX : not implemented */
+ spr_register(env, SPR_PMC5, "PMC5",
+ SPR_NOACCESS, SPR_NOACCESS,
+ &spr_read_generic, &spr_write_generic,
+ 0x00000000);
+ /* XXX : not implemented */
+ spr_register(env, SPR_UPMC5, "UPMC5",
+ &spr_read_ureg, SPR_NOACCESS,
+ &spr_read_ureg, SPR_NOACCESS,
+ 0x00000000);
+ /* XXX : not implemented */
+ spr_register(env, SPR_PMC6, "PMC6",
+ SPR_NOACCESS, SPR_NOACCESS,
+ &spr_read_generic, &spr_write_generic,
+ 0x00000000);
+ /* XXX : not implemented */
+ spr_register(env, SPR_UPMC6, "UPMC6",
+ &spr_read_ureg, SPR_NOACCESS,
+ &spr_read_ureg, SPR_NOACCESS,
+ 0x00000000);
+ /* SPRGs */
+ spr_register(env, SPR_SPRG4, "SPRG4",
+ SPR_NOACCESS, SPR_NOACCESS,
+ &spr_read_generic, &spr_write_generic,
+ 0x00000000);
+ spr_register(env, SPR_USPRG4, "USPRG4",
+ &spr_read_ureg, SPR_NOACCESS,
+ &spr_read_ureg, SPR_NOACCESS,
+ 0x00000000);
+ spr_register(env, SPR_SPRG5, "SPRG5",
+ SPR_NOACCESS, SPR_NOACCESS,
+ &spr_read_generic, &spr_write_generic,
+ 0x00000000);
+ spr_register(env, SPR_USPRG5, "USPRG5",
+ &spr_read_ureg, SPR_NOACCESS,
+ &spr_read_ureg, SPR_NOACCESS,
+ 0x00000000);
+ spr_register(env, SPR_SPRG6, "SPRG6",
+ SPR_NOACCESS, SPR_NOACCESS,
+ &spr_read_generic, &spr_write_generic,
+ 0x00000000);
+ spr_register(env, SPR_USPRG6, "USPRG6",
+ &spr_read_ureg, SPR_NOACCESS,
+ &spr_read_ureg, SPR_NOACCESS,
+ 0x00000000);
+ spr_register(env, SPR_SPRG7, "SPRG7",
+ SPR_NOACCESS, SPR_NOACCESS,
+ &spr_read_generic, &spr_write_generic,
+ 0x00000000);
+ spr_register(env, SPR_USPRG7, "USPRG7",
+ &spr_read_ureg, SPR_NOACCESS,
+ &spr_read_ureg, SPR_NOACCESS,
+ 0x00000000);
+ /* Memory management */
+ gen_low_BATs(env);
+ gen_high_BATs(env);
+ gen_74xx_soft_tlb(env, 128, 2);
+ init_excp_7450(env);
+ env->dcache_line_size = 32;
+ env->icache_line_size = 32;
+ /* Allocate hardware IRQ controller */
+ ppc6xx_irq_init(env);
+}
+
+POWERPC_FAMILY(e600)(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+ PowerPCCPUClass *pcc = POWERPC_CPU_CLASS(oc);
+
+ dc->desc = "PowerPC e600";
+ pcc->init_proc = init_proc_e600;
+ pcc->check_pow = check_pow_hid0_74xx;
+ 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_DCBA | PPC_CACHE_DCBZ |
+ PPC_MEM_SYNC | PPC_MEM_EIEIO |
+ PPC_MEM_TLBIE | PPC_MEM_TLBSYNC |
+ PPC_MEM_TLBIA | PPC_74xx_TLB |
+ PPC_SEGMENT | PPC_EXTERN |
+ PPC_ALTIVEC;
+ pcc->insns_flags2 = PPC_NONE;
+ pcc->msr_mask = 0x000000000205FF77ULL;
+ pcc->mmu_model = POWERPC_MMU_32B;
+#if defined(CONFIG_SOFTMMU)
+ pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
+#endif
+ pcc->excp_model = POWERPC_EXCP_74xx;
+ pcc->bus_model = PPC_FLAGS_INPUT_6xx;
+ pcc->bfd_mach = bfd_mach_ppc_7400;
+ pcc->flags = POWERPC_FLAG_VRE | POWERPC_FLAG_SE |
+ POWERPC_FLAG_BE | POWERPC_FLAG_PMM |
+ POWERPC_FLAG_BUS_CLK;
+}
+
#if defined (TARGET_PPC64)
#if defined(CONFIG_USER_ONLY)
#define POWERPC970_HID5_INIT 0x00000080
--
1.8.1.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [Qemu-devel] [PATCH v3] e600 core for MPC86xx processors
2013-06-24 21:15 [Qemu-devel] [PATCH v3] e600 core for MPC86xx processors Julio Guerra
@ 2013-07-02 12:35 ` Alexander Graf
0 siblings, 0 replies; 2+ messages in thread
From: Alexander Graf @ 2013-07-02 12:35 UTC (permalink / raw)
To: Julio Guerra; +Cc: qemu-ppc, qemu-devel
On 06/24/2013 11:15 PM, Julio Guerra wrote:
> MPC86xx processors are based on the e600 core, which is not the case
> in qemu where it is based on the 7400 processor.
>
> This patch creates the e600 core and instantiates the MPC86xx
> processors based on it. Therefore, adding the high BATs, the SPRG
> 4..7 registers, which are e600-specific [1], and a HW MMU model (as 7400).
> This allows to define the MPC8610 processor too.
>
> Tested with a kernel using the HW TLB misses.
>
> [1] http://cache.freescale.com/files/32bit/doc/ref_manual/E600CORERM.pdf
>
> Signed-off-by: Julio Guerra<guerr@julio.in>
Thanks, applied to ppc-next.
Alex
^ permalink raw reply [flat|nested] 2+ messages in thread
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