* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
*/
#include "qemu/osdep.h"
+#include "qemu/log.h"
#include "cpu.h"
#include "exec/exec-all.h"
#include "exec/helper-proto.h"
#include "exec/cpu_ldst.h"
-#include "sysemu/sysemu.h"
#include "qemu/timer.h"
-#include "fpu/softfloat.h"
#include "trace.h"
-void QEMU_NORETURN HELPER(excp)(CPUHPPAState *env, int excp)
+G_NORETURN void HELPER(excp)(CPUHPPAState *env, int excp)
{
- HPPACPU *cpu = hppa_env_get_cpu(env);
- CPUState *cs = CPU(cpu);
+ CPUState *cs = env_cpu(env);
cs->exception_index = excp;
cpu_loop_exit(cs);
}
-void QEMU_NORETURN hppa_dynamic_excp(CPUHPPAState *env, int excp, uintptr_t ra)
+G_NORETURN void hppa_dynamic_excp(CPUHPPAState *env, int excp, uintptr_t ra)
{
- HPPACPU *cpu = hppa_env_get_cpu(env);
- CPUState *cs = CPU(cpu);
+ CPUState *cs = env_cpu(env);
cs->exception_index = excp;
cpu_loop_exit_restore(cs, ra);
}
}
-static void atomic_store_3(CPUHPPAState *env, target_ulong addr, uint32_t val,
- uint32_t mask, uintptr_t ra)
+static void atomic_store_3(CPUHPPAState *env, target_ulong addr,
+ uint32_t val, uintptr_t ra)
{
-#ifdef CONFIG_USER_ONLY
- uint32_t old, new, cmp;
+ int mmu_idx = cpu_mmu_index(env, 0);
+ uint32_t old, new, cmp, mask, *haddr;
+ void *vaddr;
+
+ vaddr = probe_access(env, addr, 3, MMU_DATA_STORE, mmu_idx, ra);
+ if (vaddr == NULL) {
+ cpu_loop_exit_atomic(env_cpu(env), ra);
+ }
+ haddr = (uint32_t *)((uintptr_t)vaddr & -4);
+ mask = addr & 1 ? 0x00ffffffu : 0xffffff00u;
- uint32_t *haddr = g2h(addr - 1);
old = *haddr;
while (1) {
- new = (old & ~mask) | (val & mask);
- cmp = atomic_cmpxchg(haddr, old, new);
+ new = be32_to_cpu((cpu_to_be32(old) & ~mask) | (val & mask));
+ cmp = qatomic_cmpxchg(haddr, old, new);
if (cmp == old) {
return;
}
old = cmp;
}
-#else
- /* FIXME -- we can do better. */
- cpu_loop_exit_atomic(ENV_GET_CPU(env), ra);
-#endif
}
static void do_stby_b(CPUHPPAState *env, target_ulong addr, target_ureg val,
case 1:
/* The 3 byte store must appear atomic. */
if (parallel) {
- atomic_store_3(env, addr, val, 0x00ffffffu, ra);
+ atomic_store_3(env, addr, val, ra);
} else {
cpu_stb_data_ra(env, addr, val >> 16, ra);
cpu_stw_data_ra(env, addr + 1, val, ra);
case 3:
/* The 3 byte store must appear atomic. */
if (parallel) {
- atomic_store_3(env, addr - 3, val, 0xffffff00u, ra);
+ atomic_store_3(env, addr - 3, val, ra);
} else {
cpu_stw_data_ra(env, addr - 3, val >> 16, ra);
cpu_stb_data_ra(env, addr - 1, val >> 8, ra);
default:
/* Nothing is stored, but protection is checked and the
cacheline is marked dirty. */
-#ifndef CONFIG_USER_ONLY
probe_write(env, addr, 0, cpu_mmu_index(env, 0), ra);
-#endif
break;
}
}
do_stby_e(env, addr, val, true, GETPC());
}
+void HELPER(ldc_check)(target_ulong addr)
+{
+ if (unlikely(addr & 0xf)) {
+ qemu_log_mask(LOG_GUEST_ERROR,
+ "Undefined ldc to unaligned address mod 16: "
+ TARGET_FMT_lx "\n", addr);
+ }
+}
+
target_ureg HELPER(probe)(CPUHPPAState *env, target_ulong addr,
uint32_t level, uint32_t want)
{
return 0;
}
- excp = hppa_get_physical_address(env, addr, level, 0, &phys, &prot);
+ excp = hppa_get_physical_address(env, addr, level, 0, &phys,
+ &prot, NULL);
if (excp >= 0) {
if (env->psw & PSW_Q) {
/* ??? Needs tweaking for hppa64. */
#endif
}
-void HELPER(loaded_fr0)(CPUHPPAState *env)
-{
- uint32_t shadow = env->fr[0] >> 32;
- int rm, d;
-
- env->fr0_shadow = shadow;
-
- switch (extract32(shadow, 9, 2)) {
- default:
- rm = float_round_nearest_even;
- break;
- case 1:
- rm = float_round_to_zero;
- break;
- case 2:
- rm = float_round_up;
- break;
- case 3:
- rm = float_round_down;
- break;
- }
- set_float_rounding_mode(rm, &env->fp_status);
-
- d = extract32(shadow, 5, 1);
- set_flush_to_zero(d, &env->fp_status);
- set_flush_inputs_to_zero(d, &env->fp_status);
-}
-
-void cpu_hppa_loaded_fr0(CPUHPPAState *env)
-{
- helper_loaded_fr0(env);
-}
-
-#define CONVERT_BIT(X, SRC, DST) \
- ((SRC) > (DST) \
- ? (X) / ((SRC) / (DST)) & (DST) \
- : ((X) & (SRC)) * ((DST) / (SRC)))
-
-static void update_fr0_op(CPUHPPAState *env, uintptr_t ra)
-{
- uint32_t soft_exp = get_float_exception_flags(&env->fp_status);
- uint32_t hard_exp = 0;
- uint32_t shadow = env->fr0_shadow;
-
- if (likely(soft_exp == 0)) {
- env->fr[0] = (uint64_t)shadow << 32;
- return;
- }
- set_float_exception_flags(0, &env->fp_status);
-
- hard_exp |= CONVERT_BIT(soft_exp, float_flag_inexact, 1u << 0);
- hard_exp |= CONVERT_BIT(soft_exp, float_flag_underflow, 1u << 1);
- hard_exp |= CONVERT_BIT(soft_exp, float_flag_overflow, 1u << 2);
- hard_exp |= CONVERT_BIT(soft_exp, float_flag_divbyzero, 1u << 3);
- hard_exp |= CONVERT_BIT(soft_exp, float_flag_invalid, 1u << 4);
- shadow |= hard_exp << (32 - 5);
- env->fr0_shadow = shadow;
- env->fr[0] = (uint64_t)shadow << 32;
-
- if (hard_exp & shadow) {
- hppa_dynamic_excp(env, EXCP_ASSIST, ra);
- }
-}
-
-float32 HELPER(fsqrt_s)(CPUHPPAState *env, float32 arg)
-{
- float32 ret = float32_sqrt(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float32 HELPER(frnd_s)(CPUHPPAState *env, float32 arg)
-{
- float32 ret = float32_round_to_int(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float32 HELPER(fadd_s)(CPUHPPAState *env, float32 a, float32 b)
-{
- float32 ret = float32_add(a, b, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float32 HELPER(fsub_s)(CPUHPPAState *env, float32 a, float32 b)
-{
- float32 ret = float32_sub(a, b, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float32 HELPER(fmpy_s)(CPUHPPAState *env, float32 a, float32 b)
-{
- float32 ret = float32_mul(a, b, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float32 HELPER(fdiv_s)(CPUHPPAState *env, float32 a, float32 b)
-{
- float32 ret = float32_div(a, b, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float64 HELPER(fsqrt_d)(CPUHPPAState *env, float64 arg)
-{
- float64 ret = float64_sqrt(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float64 HELPER(frnd_d)(CPUHPPAState *env, float64 arg)
-{
- float64 ret = float64_round_to_int(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float64 HELPER(fadd_d)(CPUHPPAState *env, float64 a, float64 b)
-{
- float64 ret = float64_add(a, b, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float64 HELPER(fsub_d)(CPUHPPAState *env, float64 a, float64 b)
-{
- float64 ret = float64_sub(a, b, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float64 HELPER(fmpy_d)(CPUHPPAState *env, float64 a, float64 b)
-{
- float64 ret = float64_mul(a, b, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float64 HELPER(fdiv_d)(CPUHPPAState *env, float64 a, float64 b)
-{
- float64 ret = float64_div(a, b, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float64 HELPER(fcnv_s_d)(CPUHPPAState *env, float32 arg)
-{
- float64 ret = float32_to_float64(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float32 HELPER(fcnv_d_s)(CPUHPPAState *env, float64 arg)
-{
- float32 ret = float64_to_float32(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float32 HELPER(fcnv_w_s)(CPUHPPAState *env, int32_t arg)
-{
- float32 ret = int32_to_float32(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float32 HELPER(fcnv_dw_s)(CPUHPPAState *env, int64_t arg)
-{
- float32 ret = int64_to_float32(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float64 HELPER(fcnv_w_d)(CPUHPPAState *env, int32_t arg)
-{
- float64 ret = int32_to_float64(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float64 HELPER(fcnv_dw_d)(CPUHPPAState *env, int64_t arg)
-{
- float64 ret = int64_to_float64(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-int32_t HELPER(fcnv_s_w)(CPUHPPAState *env, float32 arg)
-{
- int32_t ret = float32_to_int32(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-int32_t HELPER(fcnv_d_w)(CPUHPPAState *env, float64 arg)
-{
- int32_t ret = float64_to_int32(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-int64_t HELPER(fcnv_s_dw)(CPUHPPAState *env, float32 arg)
-{
- int64_t ret = float32_to_int64(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-int64_t HELPER(fcnv_d_dw)(CPUHPPAState *env, float64 arg)
-{
- int64_t ret = float64_to_int64(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-int32_t HELPER(fcnv_t_s_w)(CPUHPPAState *env, float32 arg)
-{
- int32_t ret = float32_to_int32_round_to_zero(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-int32_t HELPER(fcnv_t_d_w)(CPUHPPAState *env, float64 arg)
-{
- int32_t ret = float64_to_int32_round_to_zero(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-int64_t HELPER(fcnv_t_s_dw)(CPUHPPAState *env, float32 arg)
-{
- int64_t ret = float32_to_int64_round_to_zero(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-int64_t HELPER(fcnv_t_d_dw)(CPUHPPAState *env, float64 arg)
-{
- int64_t ret = float64_to_int64_round_to_zero(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float32 HELPER(fcnv_uw_s)(CPUHPPAState *env, uint32_t arg)
-{
- float32 ret = uint32_to_float32(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float32 HELPER(fcnv_udw_s)(CPUHPPAState *env, uint64_t arg)
-{
- float32 ret = uint64_to_float32(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float64 HELPER(fcnv_uw_d)(CPUHPPAState *env, uint32_t arg)
-{
- float64 ret = uint32_to_float64(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float64 HELPER(fcnv_udw_d)(CPUHPPAState *env, uint64_t arg)
-{
- float64 ret = uint64_to_float64(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-uint32_t HELPER(fcnv_s_uw)(CPUHPPAState *env, float32 arg)
-{
- uint32_t ret = float32_to_uint32(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-uint32_t HELPER(fcnv_d_uw)(CPUHPPAState *env, float64 arg)
-{
- uint32_t ret = float64_to_uint32(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-uint64_t HELPER(fcnv_s_udw)(CPUHPPAState *env, float32 arg)
-{
- uint64_t ret = float32_to_uint64(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-uint64_t HELPER(fcnv_d_udw)(CPUHPPAState *env, float64 arg)
-{
- uint64_t ret = float64_to_uint64(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-uint32_t HELPER(fcnv_t_s_uw)(CPUHPPAState *env, float32 arg)
-{
- uint32_t ret = float32_to_uint32_round_to_zero(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-uint32_t HELPER(fcnv_t_d_uw)(CPUHPPAState *env, float64 arg)
-{
- uint32_t ret = float64_to_uint32_round_to_zero(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-uint64_t HELPER(fcnv_t_s_udw)(CPUHPPAState *env, float32 arg)
-{
- uint64_t ret = float32_to_uint64_round_to_zero(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-uint64_t HELPER(fcnv_t_d_udw)(CPUHPPAState *env, float64 arg)
-{
- uint64_t ret = float64_to_uint64_round_to_zero(arg, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-static void update_fr0_cmp(CPUHPPAState *env, uint32_t y, uint32_t c, int r)
-{
- uint32_t shadow = env->fr0_shadow;
-
- switch (r) {
- case float_relation_greater:
- c = extract32(c, 4, 1);
- break;
- case float_relation_less:
- c = extract32(c, 3, 1);
- break;
- case float_relation_equal:
- c = extract32(c, 2, 1);
- break;
- case float_relation_unordered:
- c = extract32(c, 1, 1);
- break;
- default:
- g_assert_not_reached();
- }
-
- if (y) {
- /* targeted comparison */
- /* set fpsr[ca[y - 1]] to current compare */
- shadow = deposit32(shadow, 21 - (y - 1), 1, c);
- } else {
- /* queued comparison */
- /* shift cq right by one place */
- shadow = deposit32(shadow, 11, 10, extract32(shadow, 12, 10));
- /* move fpsr[c] to fpsr[cq[0]] */
- shadow = deposit32(shadow, 21, 1, extract32(shadow, 26, 1));
- /* set fpsr[c] to current compare */
- shadow = deposit32(shadow, 26, 1, c);
- }
-
- env->fr0_shadow = shadow;
- env->fr[0] = (uint64_t)shadow << 32;
-}
-
-void HELPER(fcmp_s)(CPUHPPAState *env, float32 a, float32 b,
- uint32_t y, uint32_t c)
-{
- int r;
- if (c & 1) {
- r = float32_compare(a, b, &env->fp_status);
- } else {
- r = float32_compare_quiet(a, b, &env->fp_status);
- }
- update_fr0_op(env, GETPC());
- update_fr0_cmp(env, y, c, r);
-}
-
-void HELPER(fcmp_d)(CPUHPPAState *env, float64 a, float64 b,
- uint32_t y, uint32_t c)
-{
- int r;
- if (c & 1) {
- r = float64_compare(a, b, &env->fp_status);
- } else {
- r = float64_compare_quiet(a, b, &env->fp_status);
- }
- update_fr0_op(env, GETPC());
- update_fr0_cmp(env, y, c, r);
-}
-
-float32 HELPER(fmpyfadd_s)(CPUHPPAState *env, float32 a, float32 b, float32 c)
-{
- float32 ret = float32_muladd(a, b, c, 0, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float32 HELPER(fmpynfadd_s)(CPUHPPAState *env, float32 a, float32 b, float32 c)
-{
- float32 ret = float32_muladd(a, b, c, float_muladd_negate_product,
- &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float64 HELPER(fmpyfadd_d)(CPUHPPAState *env, float64 a, float64 b, float64 c)
-{
- float64 ret = float64_muladd(a, b, c, 0, &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
-float64 HELPER(fmpynfadd_d)(CPUHPPAState *env, float64 a, float64 b, float64 c)
-{
- float64 ret = float64_muladd(a, b, c, float_muladd_negate_product,
- &env->fp_status);
- update_fr0_op(env, GETPC());
- return ret;
-}
-
target_ureg HELPER(read_interval_timer)(void)
{
#ifdef CONFIG_USER_ONLY
return qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) >> 2;
#endif
}
-
-#ifndef CONFIG_USER_ONLY
-void HELPER(write_interval_timer)(CPUHPPAState *env, target_ureg val)
-{
- HPPACPU *cpu = hppa_env_get_cpu(env);
- uint64_t current = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
- uint64_t timeout;
-
- /* Even in 64-bit mode, the comparator is always 32-bit. But the
- value we expose to the guest is 1/4 of the speed of the clock,
- so moosh in 34 bits. */
- timeout = deposit64(current, 0, 34, (uint64_t)val << 2);
-
- /* If the mooshing puts the clock in the past, advance to next round. */
- if (timeout < current + 1000) {
- timeout += 1ULL << 34;
- }
-
- cpu->env.cr[CR_IT] = timeout;
- timer_mod(cpu->alarm_timer, timeout);
-}
-
-void HELPER(halt)(CPUHPPAState *env)
-{
- qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
- helper_excp(env, EXCP_HLT);
-}
-
-void HELPER(reset)(CPUHPPAState *env)
-{
- qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
- helper_excp(env, EXCP_HLT);
-}
-
-target_ureg HELPER(swap_system_mask)(CPUHPPAState *env, target_ureg nsm)
-{
- target_ulong psw = env->psw;
- /*
- * Setting the PSW Q bit to 1, if it was not already 1, is an
- * undefined operation.
- *
- * However, HP-UX 10.20 does this with the SSM instruction.
- * Tested this on HP9000/712 and HP9000/785/C3750 and both
- * machines set the Q bit from 0 to 1 without an exception,
- * so let this go without comment.
- */
- env->psw = (psw & ~PSW_SM) | (nsm & PSW_SM);
- return psw & PSW_SM;
-}
-
-void HELPER(rfi)(CPUHPPAState *env)
-{
- env->iasq_f = (uint64_t)env->cr[CR_IIASQ] << 32;
- env->iasq_b = (uint64_t)env->cr_back[0] << 32;
- env->iaoq_f = env->cr[CR_IIAOQ];
- env->iaoq_b = env->cr_back[1];
- cpu_hppa_put_psw(env, env->cr[CR_IPSW]);
-}
-
-void HELPER(rfi_r)(CPUHPPAState *env)
-{
- env->gr[1] = env->shadow[0];
- env->gr[8] = env->shadow[1];
- env->gr[9] = env->shadow[2];
- env->gr[16] = env->shadow[3];
- env->gr[17] = env->shadow[4];
- env->gr[24] = env->shadow[5];
- env->gr[25] = env->shadow[6];
- helper_rfi(env);
-}
-#endif
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