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| author | Richard Henderson <richard.henderson@linaro.org> | 2019-08-25 15:02:54 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2019-09-04 12:48:43 -0700 |
| commit | c7efab4fc1fe5092136305a2cae67fca03f4f9c5 (patch) | |
| tree | 17c8eb391a8d03a3002cee3235df59bce50a7dd5 | |
| parent | b72e3ff65880f2b894a2692e2b0a14424058a919 (diff) | |
| download | qemu-c7efab4fc1fe5092136305a2cae67fca03f4f9c5.zip qemu-c7efab4fc1fe5092136305a2cae67fca03f4f9c5.tar.gz qemu-c7efab4fc1fe5092136305a2cae67fca03f4f9c5.tar.bz2 | |
target/openrisc: Move VR, UPR, DMMCFGR, IMMCFGR to cpu init
These registers are read-only and implementation specific.
Initiailize VR for the first time; take the OR1200 values
from the verilog source.
Note that moving fields within CPUOpenRISCState does not
affect migration.
Reviewed-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| -rw-r--r-- | target/openrisc/cpu.c | 23 | ||||
| -rw-r--r-- | target/openrisc/cpu.h | 8 | ||||
| -rw-r--r-- | target/openrisc/sys_helper.c | 4 |
3 files changed, 22 insertions, 13 deletions
diff --git a/target/openrisc/cpu.c b/target/openrisc/cpu.c index f19e482..d9f447e 100644 --- a/target/openrisc/cpu.c +++ b/target/openrisc/cpu.c @@ -56,13 +56,6 @@ static void openrisc_cpu_reset(CPUState *s) cpu->env.lock_addr = -1; s->exception_index = -1; - cpu->env.upr = UPR_UP | UPR_DMP | UPR_IMP | UPR_PICP | UPR_TTP | - UPR_PMP; - cpu->env.dmmucfgr = (DMMUCFGR_NTW & (0 << 2)) - | (DMMUCFGR_NTS & (ctz32(TLB_SIZE) << 2)); - cpu->env.immucfgr = (IMMUCFGR_NTW & (0 << 2)) - | (IMMUCFGR_NTS & (ctz32(TLB_SIZE) << 2)); - #ifndef CONFIG_USER_ONLY cpu->env.picmr = 0x00000000; cpu->env.picsr = 0x00000000; @@ -117,15 +110,31 @@ static void or1200_initfn(Object *obj) { OpenRISCCPU *cpu = OPENRISC_CPU(obj); + cpu->env.vr = 0x13000008; + cpu->env.upr = UPR_UP | UPR_DMP | UPR_IMP | UPR_PICP | UPR_TTP | UPR_PMP; cpu->env.cpucfgr = CPUCFGR_NSGF | CPUCFGR_OB32S | CPUCFGR_OF32S | CPUCFGR_EVBARP; + + /* 1Way, TLB_SIZE entries. */ + cpu->env.dmmucfgr = (DMMUCFGR_NTW & (0 << 2)) + | (DMMUCFGR_NTS & (ctz32(TLB_SIZE) << 2)); + cpu->env.immucfgr = (IMMUCFGR_NTW & (0 << 2)) + | (IMMUCFGR_NTS & (ctz32(TLB_SIZE) << 2)); } static void openrisc_any_initfn(Object *obj) { OpenRISCCPU *cpu = OPENRISC_CPU(obj); + cpu->env.vr = 0x13000000; + cpu->env.upr = UPR_UP | UPR_DMP | UPR_IMP | UPR_PICP | UPR_TTP | UPR_PMP; cpu->env.cpucfgr = CPUCFGR_NSGF | CPUCFGR_OB32S | CPUCFGR_EVBARP; + + /* 1Way, TLB_SIZE entries. */ + cpu->env.dmmucfgr = (DMMUCFGR_NTW & (0 << 2)) + | (DMMUCFGR_NTS & (ctz32(TLB_SIZE) << 2)); + cpu->env.immucfgr = (IMMUCFGR_NTW & (0 << 2)) + | (IMMUCFGR_NTS & (ctz32(TLB_SIZE) << 2)); } static void openrisc_cpu_class_init(ObjectClass *oc, void *data) diff --git a/target/openrisc/cpu.h b/target/openrisc/cpu.h index 755282f..18d7445 100644 --- a/target/openrisc/cpu.h +++ b/target/openrisc/cpu.h @@ -260,10 +260,6 @@ typedef struct CPUOpenRISCState { target_ulong sr_cy; /* the SR_CY bit, values 0, 1. */ target_long sr_ov; /* the SR_OV bit (in the sign bit only) */ uint32_t sr; /* Supervisor register, without SR_{F,CY,OV} */ - uint32_t vr; /* Version register */ - uint32_t upr; /* Unit presence register */ - uint32_t dmmucfgr; /* DMMU configure register */ - uint32_t immucfgr; /* IMMU configure register */ uint32_t esr; /* Exception supervisor register */ uint32_t evbar; /* Exception vector base address register */ uint32_t pmr; /* Power Management Register */ @@ -283,7 +279,11 @@ typedef struct CPUOpenRISCState { struct {} end_reset_fields; /* Fields from here on are preserved across CPU reset. */ + uint32_t vr; /* Version register */ + uint32_t upr; /* Unit presence register */ uint32_t cpucfgr; /* CPU configure register */ + uint32_t dmmucfgr; /* DMMU configure register */ + uint32_t immucfgr; /* IMMU configure register */ #ifndef CONFIG_USER_ONLY QEMUTimer *timer; diff --git a/target/openrisc/sys_helper.c b/target/openrisc/sys_helper.c index d20f48b..a2b1f52 100644 --- a/target/openrisc/sys_helper.c +++ b/target/openrisc/sys_helper.c @@ -199,13 +199,13 @@ target_ulong HELPER(mfspr)(CPUOpenRISCState *env, target_ulong rd, return env->vr; case TO_SPR(0, 1): /* UPR */ - return env->upr; /* TT, DM, IM, UP present */ + return env->upr; case TO_SPR(0, 2): /* CPUCFGR */ return env->cpucfgr; case TO_SPR(0, 3): /* DMMUCFGR */ - return env->dmmucfgr; /* 1Way, 64 entries */ + return env->dmmucfgr; case TO_SPR(0, 4): /* IMMUCFGR */ return env->immucfgr; |