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target/openrisc: Add VR2 and AVR special processor registers

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Update the CPUCFG bits to arch v1.3.
Include support for AVRP for cpu "any".

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2019-08-25 15:23:42 -07:00
parent c7efab4fc1
commit 8bebf7d134
3 changed files with 19 additions and 6 deletions
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8
target/openrisc/cpu.c
View File

@ -126,9 +126,13 @@ static void openrisc_any_initfn(Object *obj)
{
OpenRISCCPU *cpu = OPENRISC_CPU(obj);
cpu->env.vr = 0x13000000;
cpu->env.vr = 0x13000040; /* Obsolete VER + UVRP for new SPRs */
cpu->env.vr2 = 0; /* No version specific id */
cpu->env.avr = 0x01010000; /* Architecture v1.1 */
cpu->env.upr = UPR_UP | UPR_DMP | UPR_IMP | UPR_PICP | UPR_TTP | UPR_PMP;
cpu->env.cpucfgr = CPUCFGR_NSGF | CPUCFGR_OB32S | CPUCFGR_EVBARP;
cpu->env.cpucfgr = CPUCFGR_NSGF | CPUCFGR_OB32S |
CPUCFGR_AVRP | CPUCFGR_EVBARP;
/* 1Way, TLB_SIZE entries. */
cpu->env.dmmucfgr = (DMMUCFGR_NTW & (0 << 2))

11
target/openrisc/cpu.h
View File

@ -96,11 +96,12 @@ enum {
CPUCFGR_OF32S = (1 << 7),
CPUCFGR_OF64S = (1 << 8),
CPUCFGR_OV64S = (1 << 9),
/* CPUCFGR_ND = (1 << 10), */
/* CPUCFGR_AVRP = (1 << 11), */
CPUCFGR_ND = (1 << 10),
CPUCFGR_AVRP = (1 << 11),
CPUCFGR_EVBARP = (1 << 12),
/* CPUCFGR_ISRP = (1 << 13), */
/* CPUCFGR_AECSRP = (1 << 14), */
CPUCFGR_ISRP = (1 << 13),
CPUCFGR_AECSRP = (1 << 14),
CPUCFGR_OF64A32S = (1 << 15),
};
/* DMMU configure register */
@ -280,6 +281,8 @@ typedef struct CPUOpenRISCState {
/* Fields from here on are preserved across CPU reset. */
uint32_t vr; /* Version register */
uint32_t vr2; /* Version register 2 */
uint32_t avr; /* Architecture version register */
uint32_t upr; /* Unit presence register */
uint32_t cpucfgr; /* CPU configure register */
uint32_t dmmucfgr; /* DMMU configure register */

6
target/openrisc/sys_helper.c
View File

@ -210,6 +210,12 @@ target_ulong HELPER(mfspr)(CPUOpenRISCState *env, target_ulong rd,
case TO_SPR(0, 4): /* IMMUCFGR */
return env->immucfgr;
case TO_SPR(0, 9): /* VR2 */
return env->vr2;
case TO_SPR(0, 10): /* AVR */
return env->avr;
case TO_SPR(0, 11): /* EVBAR */
return env->evbar;