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target-ppc: Add Target Address SPR (TAR) to Power8

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This patch adds support for the Target Address Register (TAR) to the Power8
model.

Because supported SPRs are typically identified in an init_proc_*()
function and because the Power8 model is currently just using the
init_proc_POWER7() function, a new init_proc_POWER8() function
is added and plugged into the P8 model.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Tom Musta 2014-02-10 11:26:54 -06:00 committed by Alexander Graf
parent 94840e0700
commit 60511041d6
2 changed files with 14 additions and 1 deletions
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1
target-ppc/cpu.h
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@ -1508,6 +1508,7 @@ static inline int cpu_mmu_index (CPUPPCState *env)
#define SPR_RCPU_L2U_RA2 (0x32A)
#define SPR_MPC_MD_DBRAM1 (0x32A)
#define SPR_RCPU_L2U_RA3 (0x32B)
#define SPR_TAR (0x32F)
#define SPR_440_INV0 (0x370)
#define SPR_440_INV1 (0x371)
#define SPR_440_INV2 (0x372)

14
target-ppc/translate_init.c
View File

@ -7133,6 +7133,18 @@ POWERPC_FAMILY(POWER7P)(ObjectClass *oc, void *data)
pcc->l1_icache_size = 0x8000;
}
static void init_proc_POWER8(CPUPPCState *env)
{
/* inherit P7 */
init_proc_POWER7(env);
/* P8 supports the TAR */
spr_register(env, SPR_TAR, "TAR",
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_generic,
0x00000000);
}
POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
@ -7142,7 +7154,7 @@ POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data)
dc->desc = "POWER8";
pcc->pvr = CPU_POWERPC_POWER8_BASE;
pcc->pvr_mask = CPU_POWERPC_POWER8_MASK;
pcc->init_proc = init_proc_POWER7;
pcc->init_proc = init_proc_POWER8;
pcc->check_pow = check_pow_nocheck;
pcc->insns_flags = PPC_INSNS_BASE | PPC_STRING | PPC_MFTB |
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES |