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[Qemu-devel] [PATCH 12/26] Add POWER7 support for ppc
|
From: |
David Gibson |
|
Subject: |
[Qemu-devel] [PATCH 12/26] Add POWER7 support for ppc |
|
Date: |
Wed, 16 Mar 2011 15:56:49 +1100 |
This adds emulation support for the recent POWER7 cpu to qemu. It's far
from perfect - it's missing a number of POWER7 features so far, including
any support for VSX or decimal floating point instructions. However, it's
close enough to boot a kernel with the POWER7 PVR.
Signed-off-by: David Gibson <address@hidden>
---
hw/ppc.c | 35 +++++++++++++++
hw/ppc.h | 1 +
target-ppc/cpu.h | 16 +++++++
target-ppc/helper.c | 6 +++
target-ppc/translate_init.c | 103 +++++++++++++++++++++++++++++++++++++++++++
5 files changed, 161 insertions(+), 0 deletions(-)
diff --git a/hw/ppc.c b/hw/ppc.c
index de02d33..2aa152b 100644
--- a/hw/ppc.c
+++ b/hw/ppc.c
@@ -247,6 +247,41 @@ void ppc970_irq_init (CPUState *env)
env->irq_inputs = (void **)qemu_allocate_irqs(&ppc970_set_irq, env,
PPC970_INPUT_NB);
}
+
+/* POWER7 internal IRQ controller */
+static void power7_set_irq (void *opaque, int pin, int level)
+{
+ CPUState *env = opaque;
+ int cur_level;
+
+ LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
+ env, pin, level);
+ cur_level = (env->irq_input_state >> pin) & 1;
+
+ switch (pin) {
+ case POWER7_INPUT_INT:
+ /* Level sensitive - active high */
+ LOG_IRQ("%s: set the external IRQ state to %d\n",
+ __func__, level);
+ ppc_set_irq(env, PPC_INTERRUPT_EXT, level);
+ break;
+ default:
+ /* Unknown pin - do nothing */
+ LOG_IRQ("%s: unknown IRQ pin %d\n", __func__, pin);
+ return;
+ }
+ if (level) {
+ env->irq_input_state |= 1 << pin;
+ } else {
+ env->irq_input_state &= ~(1 << pin);
+ }
+}
+
+void ppcPOWER7_irq_init (CPUState *env)
+{
+ env->irq_inputs = (void **)qemu_allocate_irqs(&power7_set_irq, env,
+ POWER7_INPUT_NB);
+}
#endif /* defined(TARGET_PPC64) */
/* PowerPC 40x internal IRQ controller */
diff --git a/hw/ppc.h b/hw/ppc.h
index 34f54cf..3ccf134 100644
--- a/hw/ppc.h
+++ b/hw/ppc.h
@@ -36,6 +36,7 @@ void ppc40x_irq_init (CPUState *env);
void ppce500_irq_init (CPUState *env);
void ppc6xx_irq_init (CPUState *env);
void ppc970_irq_init (CPUState *env);
+void ppcPOWER7_irq_init (CPUState *env);
/* PPC machines for OpenBIOS */
enum {
diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index 9abf4a9..3a47d11 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -119,6 +119,8 @@ enum powerpc_mmu_t {
POWERPC_MMU_64B = POWERPC_MMU_64 | 0x00000001,
/* 620 variant (no segment exceptions) */
POWERPC_MMU_620 = POWERPC_MMU_64 | 0x00000002,
+ /* Architecture 2.06 variant */
+ POWERPC_MMU_2_06 = POWERPC_MMU_64 | POWERPC_MMU_1TSEG | 0x00000003,
#endif /* defined(TARGET_PPC64) */
};
@@ -154,6 +156,8 @@ enum powerpc_excp_t {
#if defined(TARGET_PPC64)
/* PowerPC 970 exception model */
POWERPC_EXCP_970,
+ /* POWER7 exception model */
+ POWERPC_EXCP_POWER7,
#endif /* defined(TARGET_PPC64) */
};
@@ -289,6 +293,8 @@ enum powerpc_input_t {
PPC_FLAGS_INPUT_405,
/* PowerPC 970 bus */
PPC_FLAGS_INPUT_970,
+ /* PowerPC POWER7 bus */
+ PPC_FLAGS_INPUT_POWER7,
/* PowerPC 401 bus */
PPC_FLAGS_INPUT_401,
/* Freescale RCPU bus */
@@ -1003,6 +1009,7 @@ static inline void cpu_clone_regs(CPUState *env,
target_ulong newsp)
#define SPR_HSPRG1 (0x131)
#define SPR_HDSISR (0x132)
#define SPR_HDAR (0x133)
+#define SPR_SPURR (0x134)
#define SPR_BOOKE_DBCR0 (0x134)
#define SPR_IBCR (0x135)
#define SPR_PURR (0x135)
@@ -1627,6 +1634,15 @@ enum {
PPC970_INPUT_THINT = 6,
PPC970_INPUT_NB,
};
+
+enum {
+ /* POWER7 input pins */
+ POWER7_INPUT_INT = 0,
+ /* POWER7 probably has other inputs, but we don't care about them
+ * for any existing machine. We can wire these up when we need
+ * them */
+ POWER7_INPUT_NB,
+};
#endif
/* Hardware exceptions definitions */
diff --git a/target-ppc/helper.c b/target-ppc/helper.c
index 3e3b5da..13a5ab1 100644
--- a/target-ppc/helper.c
+++ b/target-ppc/helper.c
@@ -1192,6 +1192,7 @@ static inline int check_physical(CPUState *env, mmu_ctx_t
*ctx,
#if defined(TARGET_PPC64)
case POWERPC_MMU_620:
case POWERPC_MMU_64B:
+ case POWERPC_MMU_2_06:
/* Real address are 60 bits long */
ctx->raddr &= 0x0FFFFFFFFFFFFFFFULL;
ctx->prot |= PAGE_WRITE;
@@ -1269,6 +1270,7 @@ int get_physical_address (CPUState *env, mmu_ctx_t *ctx,
target_ulong eaddr,
#if defined(TARGET_PPC64)
case POWERPC_MMU_620:
case POWERPC_MMU_64B:
+ case POWERPC_MMU_2_06:
#endif
if (ret < 0) {
/* We didn't match any BAT entry or don't have BATs */
@@ -1368,6 +1370,7 @@ int cpu_ppc_handle_mmu_fault (CPUState *env, target_ulong
address, int rw,
#if defined(TARGET_PPC64)
case POWERPC_MMU_620:
case POWERPC_MMU_64B:
+ case POWERPC_MMU_2_06:
#endif
env->exception_index = POWERPC_EXCP_ISI;
env->error_code = 0x40000000;
@@ -1477,6 +1480,7 @@ int cpu_ppc_handle_mmu_fault (CPUState *env, target_ulong
address, int rw,
#if defined(TARGET_PPC64)
case POWERPC_MMU_620:
case POWERPC_MMU_64B:
+ case POWERPC_MMU_2_06:
#endif
env->exception_index = POWERPC_EXCP_DSI;
env->error_code = 0;
@@ -1800,6 +1804,7 @@ void ppc_tlb_invalidate_all (CPUPPCState *env)
#if defined(TARGET_PPC64)
case POWERPC_MMU_620:
case POWERPC_MMU_64B:
+ case POWERPC_MMU_2_06:
#endif /* defined(TARGET_PPC64) */
tlb_flush(env, 1);
break;
@@ -1867,6 +1872,7 @@ void ppc_tlb_invalidate_one (CPUPPCState *env,
target_ulong addr)
#if defined(TARGET_PPC64)
case POWERPC_MMU_620:
case POWERPC_MMU_64B:
+ case POWERPC_MMU_2_06:
/* tlbie invalidate TLBs for all segments */
/* XXX: given the fact that there are too many segments to invalidate,
* and we still don't have a tlb_flush_mask(env, n, mask) in Qemu,
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index 6270ec6..58de0cb 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -61,6 +61,7 @@ void glue(glue(ppc, name),_irq_init) (CPUPPCState *env);
PPC_IRQ_INIT_FN(40x);
PPC_IRQ_INIT_FN(6xx);
PPC_IRQ_INIT_FN(970);
+PPC_IRQ_INIT_FN(POWER7);
PPC_IRQ_INIT_FN(e500);
/* Generic callbacks:
@@ -3129,6 +3130,35 @@ static void init_excp_970 (CPUPPCState *env)
env->hreset_vector = 0x0000000000000100ULL;
#endif
}
+
+static void init_excp_POWER7 (CPUPPCState *env)
+{
+#if !defined(CONFIG_USER_ONLY)
+ env->excp_vectors[POWERPC_EXCP_RESET] = 0x00000100;
+ env->excp_vectors[POWERPC_EXCP_MCHECK] = 0x00000200;
+ env->excp_vectors[POWERPC_EXCP_DSI] = 0x00000300;
+ env->excp_vectors[POWERPC_EXCP_DSEG] = 0x00000380;
+ env->excp_vectors[POWERPC_EXCP_ISI] = 0x00000400;
+ env->excp_vectors[POWERPC_EXCP_ISEG] = 0x00000480;
+ env->excp_vectors[POWERPC_EXCP_EXTERNAL] = 0x00000500;
+ env->excp_vectors[POWERPC_EXCP_ALIGN] = 0x00000600;
+ env->excp_vectors[POWERPC_EXCP_PROGRAM] = 0x00000700;
+ env->excp_vectors[POWERPC_EXCP_FPU] = 0x00000800;
+ env->excp_vectors[POWERPC_EXCP_DECR] = 0x00000900;
+ env->excp_vectors[POWERPC_EXCP_HDECR] = 0x00000980;
+ env->excp_vectors[POWERPC_EXCP_SYSCALL] = 0x00000C00;
+ env->excp_vectors[POWERPC_EXCP_TRACE] = 0x00000D00;
+ env->excp_vectors[POWERPC_EXCP_PERFM] = 0x00000F00;
+ env->excp_vectors[POWERPC_EXCP_VPU] = 0x00000F20;
+ env->excp_vectors[POWERPC_EXCP_IABR] = 0x00001300;
+ env->excp_vectors[POWERPC_EXCP_MAINT] = 0x00001600;
+ env->excp_vectors[POWERPC_EXCP_VPUA] = 0x00001700;
+ env->excp_vectors[POWERPC_EXCP_THERM] = 0x00001800;
+ env->hreset_excp_prefix = 0;
+ /* Hardware reset vector */
+ env->hreset_vector = 0x0000000000000100ULL;
+#endif
+}
#endif
/*****************************************************************************/
@@ -6310,6 +6340,74 @@ static void init_proc_970MP (CPUPPCState *env)
vscr_init(env, 0x00010000);
}
+/* POWER7 */
+#define POWERPC_INSNS_POWER7 (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_DCBZT | \
+ 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)
+#define POWERPC_MSRM_POWER7 (0x800000000204FF36ULL)
+#define POWERPC_MMU_POWER7 (POWERPC_MMU_2_06)
+#define POWERPC_EXCP_POWER7 (POWERPC_EXCP_POWER7)
+#define POWERPC_INPUT_POWER7 (PPC_FLAGS_INPUT_POWER7)
+#define POWERPC_BFDM_POWER7 (bfd_mach_ppc64)
+#define POWERPC_FLAG_POWER7 (POWERPC_FLAG_VRE | POWERPC_FLAG_SE |
\
+ POWERPC_FLAG_BE | POWERPC_FLAG_PMM | \
+ POWERPC_FLAG_BUS_CLK)
+#define check_pow_POWER7 check_pow_nocheck
+
+static void init_proc_POWER7 (CPUPPCState *env)
+{
+ gen_spr_ne_601(env);
+ gen_spr_7xx(env);
+ /* Time base */
+ gen_tbl(env);
+ /* PURR & SPURR: Hack - treat these as aliases for the TB for now */
+ spr_register(env, SPR_PURR, "PURR",
+ &spr_read_purr, SPR_NOACCESS,
+ &spr_read_purr, SPR_NOACCESS,
+ 0x00000000);
+ spr_register(env, SPR_SPURR, "SPURR",
+ &spr_read_purr, SPR_NOACCESS,
+ &spr_read_purr, SPR_NOACCESS,
+ 0x00000000);
+ /* Memory management */
+ /* 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_CTRL, "SPR_CTRLT",
+ SPR_NOACCESS, SPR_NOACCESS,
+ &spr_read_generic, &spr_write_generic,
+ 0x80800000);
+ spr_register(env, SPR_UCTRL, "SPR_CTRLF",
+ SPR_NOACCESS, SPR_NOACCESS,
+ &spr_read_generic, &spr_write_generic,
+ 0x80800000);
+ 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 = 32;
+#endif
+ init_excp_POWER7(env);
+ env->dcache_line_size = 128;
+ env->icache_line_size = 128;
+ /* Allocate hardware IRQ controller */
+ ppcPOWER7_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 620 */
#define POWERPC_INSNS_620 (PPC_INSNS_BASE | PPC_STRING | PPC_MFTB | \
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES | \
@@ -7032,6 +7130,8 @@ enum {
CPU_POWERPC_POWER6 = 0x003E0000,
CPU_POWERPC_POWER6_5 = 0x0F000001, /* POWER6 in POWER5 mode */
CPU_POWERPC_POWER6A = 0x0F000002,
+#define CPU_POWERPC_POWER7 CPU_POWERPC_POWER7_v20
+ CPU_POWERPC_POWER7_v20 = 0x003F0200,
CPU_POWERPC_970 = 0x00390202,
#define CPU_POWERPC_970FX CPU_POWERPC_970FX_v31
CPU_POWERPC_970FX_v10 = 0x00391100,
@@ -8834,6 +8934,9 @@ static const ppc_def_t ppc_defs[] = {
/* POWER6A */
POWERPC_DEF("POWER6A", CPU_POWERPC_POWER6A, POWER6),
#endif
+ /* POWER7 */
+ POWERPC_DEF("POWER7", CPU_POWERPC_POWER7, POWER7),
+ POWERPC_DEF("POWER7_v2.0", CPU_POWERPC_POWER7_v20, POWER7),
/* PowerPC 970 */
POWERPC_DEF("970", CPU_POWERPC_970, 970),
/* PowerPC 970FX (G5) */
--
1.7.1
- [Qemu-devel] [PATCH 01/26] Clean up PowerPC SLB handling code, (continued)
- [Qemu-devel] [PATCH 01/26] Clean up PowerPC SLB handling code, David Gibson, 2011/03/16
- [Qemu-devel] [PATCH 02/26] Allow qemu_devtree_setprop() to take arbitrary values, David Gibson, 2011/03/16
- [Qemu-devel] [PATCH 04/26] Implement PowerPC slbmfee and slbmfev instructions, David Gibson, 2011/03/16
- [Qemu-devel] [PATCH 05/26] Implement missing parts of the logic for the POWER PURR, David Gibson, 2011/03/16
- [Qemu-devel] [PATCH 07/26] Clean up slb_lookup() function, David Gibson, 2011/03/16
- [Qemu-devel] [PATCH 08/26] Parse SDR1 on mtspr instead of at translate time, David Gibson, 2011/03/16
- [Qemu-devel] [PATCH 09/26] Use "hash" more consistently in ppc mmu code, David Gibson, 2011/03/16
- [Qemu-devel] [PATCH 10/26] Better factor the ppc hash translation path, David Gibson, 2011/03/16
- [Qemu-devel] [PATCH 06/26] Correct ppc popcntb logic, implement popcntw and popcntd, David Gibson, 2011/03/16
- [Qemu-devel] [PATCH 11/26] Support 1T segments on ppc, David Gibson, 2011/03/16
- [Qemu-devel] [PATCH 12/26] Add POWER7 support for ppc,
David Gibson <=
- [Qemu-devel] [PATCH 15/26] Virtual hash page table handling on pSeries machine, David Gibson, 2011/03/16
- [Qemu-devel] [PATCH 14/26] Implement the bus structure for PAPR virtual IO, David Gibson, 2011/03/16
- [Qemu-devel] [PATCH 13/26] Start implementing pSeries logical partition machine, David Gibson, 2011/03/16