diff options
| -rw-r--r-- | target-arm/cpu.h | 2 | ||||
| -rw-r--r-- | target-arm/helper.c | 86 |
2 files changed, 73 insertions, 15 deletions
diff --git a/target-arm/cpu.h b/target-arm/cpu.h index 42c53a7d52..0d9b39ce21 100644 --- a/target-arm/cpu.h +++ b/target-arm/cpu.h @@ -382,6 +382,7 @@ enum arm_features { ARM_FEATURE_VAPA, /* cp15 VA to PA lookups */ ARM_FEATURE_ARM_DIV, /* divide supported in ARM encoding */ ARM_FEATURE_VFP4, /* VFPv4 (implies that NEON is v2) */ + ARM_FEATURE_GENERIC_TIMER, }; static inline int arm_feature(CPUARMState *env, int feature) @@ -432,6 +433,7 @@ void cpu_arm_set_cp_io(CPUARMState *env, int cpnum, #define ARM_CPUID_ARM11MPCORE 0x410fb022 #define ARM_CPUID_CORTEXA8 0x410fc080 #define ARM_CPUID_CORTEXA9 0x410fc090 +#define ARM_CPUID_CORTEXA15 0x412fc0f1 #define ARM_CPUID_CORTEXM3 0x410fc231 #define ARM_CPUID_ANY 0xffffffff diff --git a/target-arm/helper.c b/target-arm/helper.c index 00458fc892..ea4f35fb6c 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -10,6 +10,16 @@ #if !defined(CONFIG_USER_ONLY) #include "hw/loader.h" #endif +#include "sysemu.h" + +static uint32_t cortexa15_cp15_c0_c1[8] = { + 0x00001131, 0x00011011, 0x02010555, 0x00000000, + 0x10201105, 0x20000000, 0x01240000, 0x02102211 +}; + +static uint32_t cortexa15_cp15_c0_c2[8] = { + 0x02101110, 0x13112111, 0x21232041, 0x11112131, 0x10011142, 0, 0, 0 +}; static uint32_t cortexa9_cp15_c0_c1[8] = { 0x1031, 0x11, 0x000, 0, 0x00100103, 0x20000000, 0x01230000, 0x00002111 }; @@ -158,6 +168,27 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id) env->cp15.c0_ccsid[1] = 0x200fe015; /* 16k L1 icache. */ env->cp15.c1_sys = 0x00c50078; break; + case ARM_CPUID_CORTEXA15: + set_feature(env, ARM_FEATURE_V7); + set_feature(env, ARM_FEATURE_VFP4); + set_feature(env, ARM_FEATURE_VFP_FP16); + set_feature(env, ARM_FEATURE_NEON); + set_feature(env, ARM_FEATURE_THUMB2EE); + set_feature(env, ARM_FEATURE_ARM_DIV); + set_feature(env, ARM_FEATURE_V7MP); + set_feature(env, ARM_FEATURE_GENERIC_TIMER); + env->vfp.xregs[ARM_VFP_FPSID] = 0x410430f0; + env->vfp.xregs[ARM_VFP_MVFR0] = 0x10110222; + env->vfp.xregs[ARM_VFP_MVFR1] = 0x11111111; + memcpy(env->cp15.c0_c1, cortexa15_cp15_c0_c1, 8 * sizeof(uint32_t)); + memcpy(env->cp15.c0_c2, cortexa15_cp15_c0_c2, 8 * sizeof(uint32_t)); + env->cp15.c0_cachetype = 0x8444c004; + env->cp15.c0_clid = 0x0a200023; + env->cp15.c0_ccsid[0] = 0x701fe00a; /* 32K L1 dcache */ + env->cp15.c0_ccsid[1] = 0x201fe00a; /* 32K L1 icache */ + env->cp15.c0_ccsid[2] = 0x711fe07a; /* 4096K L2 unified cache */ + env->cp15.c1_sys = 0x00c50078; + break; case ARM_CPUID_CORTEXM3: set_feature(env, ARM_FEATURE_V7); set_feature(env, ARM_FEATURE_M); @@ -255,6 +286,7 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id) void cpu_reset(CPUARMState *env) { uint32_t id; + uint32_t tmp = 0; if (qemu_loglevel_mask(CPU_LOG_RESET)) { qemu_log("CPU Reset (CPU %d)\n", env->cpu_index); @@ -262,9 +294,11 @@ void cpu_reset(CPUARMState *env) } id = env->cp15.c0_cpuid; + tmp = env->cp15.c15_config_base_address; memset(env, 0, offsetof(CPUARMState, breakpoints)); if (id) cpu_reset_model_id(env, id); + env->cp15.c15_config_base_address = tmp; #if defined (CONFIG_USER_ONLY) env->uncached_cpsr = ARM_CPU_MODE_USR; /* For user mode we must enable access to coprocessors */ @@ -413,6 +447,7 @@ static const struct arm_cpu_t arm_cpu_names[] = { { ARM_CPUID_CORTEXM3, "cortex-m3"}, { ARM_CPUID_CORTEXA8, "cortex-a8"}, { ARM_CPUID_CORTEXA9, "cortex-a9"}, + { ARM_CPUID_CORTEXA15, "cortex-a15" }, { ARM_CPUID_TI925T, "ti925t" }, { ARM_CPUID_PXA250, "pxa250" }, { ARM_CPUID_SA1100, "sa1100" }, @@ -667,8 +702,6 @@ uint32_t HELPER(get_r13_banked)(CPUState *env, uint32_t mode) #else -extern int semihosting_enabled; - /* Map CPU modes onto saved register banks. */ static inline int bank_number(CPUState *env, int mode) { @@ -1610,18 +1643,17 @@ void HELPER(set_cp15)(CPUState *env, uint32_t insn, uint32_t val) break; case 8: /* MMU TLB control. */ switch (op2) { - case 0: /* Invalidate all. */ - tlb_flush(env, 0); + case 0: /* Invalidate all (TLBIALL) */ + tlb_flush(env, 1); break; - case 1: /* Invalidate single TLB entry. */ + case 1: /* Invalidate single TLB entry by MVA and ASID (TLBIMVA) */ tlb_flush_page(env, val & TARGET_PAGE_MASK); break; - case 2: /* Invalidate on ASID. */ + case 2: /* Invalidate by ASID (TLBIASID) */ tlb_flush(env, val == 0); break; - case 3: /* Invalidate single entry on MVA. */ - /* ??? This is like case 1, but ignores ASID. */ - tlb_flush(env, 1); + case 3: /* Invalidate single entry by MVA, all ASIDs (TLBIMVAA) */ + tlb_flush_page(env, val & TARGET_PAGE_MASK); break; default: goto bad_reg; @@ -1762,7 +1794,11 @@ void HELPER(set_cp15)(CPUState *env, uint32_t insn, uint32_t val) goto bad_reg; } break; - case 14: /* Reserved. */ + case 14: /* Generic timer */ + if (arm_feature(env, ARM_FEATURE_GENERIC_TIMER)) { + /* Dummy implementation: RAZ/WI for all */ + break; + } goto bad_reg; case 15: /* Implementation specific. */ if (arm_feature(env, ARM_FEATURE_XSCALE)) { @@ -1939,6 +1975,7 @@ uint32_t HELPER(get_cp15)(CPUState *env, uint32_t insn) case ARM_CPUID_CORTEXA8: return 2; case ARM_CPUID_CORTEXA9: + case ARM_CPUID_CORTEXA15: return 0; default: goto bad_reg; @@ -2059,11 +2096,26 @@ uint32_t HELPER(get_cp15)(CPUState *env, uint32_t insn) goto bad_reg; } case 1: /* L2 cache */ - if (crm != 0) { + /* L2 Lockdown and Auxiliary control. */ + switch (op2) { + case 0: + /* L2 cache lockdown (A8 only) */ + return 0; + case 2: + /* L2 cache auxiliary control (A8) or control (A15) */ + if (ARM_CPUID(env) == ARM_CPUID_CORTEXA15) { + /* Linux wants the number of processors from here. + * Might as well set the interrupt-controller bit too. + */ + return ((smp_cpus - 1) << 24) | (1 << 23); + } + return 0; + case 3: + /* L2 cache extended control (A15) */ + return 0; + default: goto bad_reg; } - /* L2 Lockdown and Auxiliary control. */ - return 0; default: goto bad_reg; } @@ -2132,7 +2184,11 @@ uint32_t HELPER(get_cp15)(CPUState *env, uint32_t insn) default: goto bad_reg; } - case 14: /* Reserved. */ + case 14: /* Generic timer */ + if (arm_feature(env, ARM_FEATURE_GENERIC_TIMER)) { + /* Dummy implementation: RAZ/WI for all */ + return 0; + } goto bad_reg; case 15: /* Implementation specific. */ if (arm_feature(env, ARM_FEATURE_XSCALE)) { @@ -2786,7 +2842,7 @@ DO_VFP_cmp(d, float64) float##fsz HELPER(name)(uint32_t x, void *fpstp) \ { \ float_status *fpst = fpstp; \ - return sign##int32_to_##float##fsz(x, fpst); \ + return sign##int32_to_##float##fsz((sign##int32_t)x, fpst); \ } #define CONV_FTOI(name, fsz, sign, round) \ |