}
}
-#ifdef TARGET_TILEGX
-
-static void gen_sigill_reg(CPUTLGState *env)
-{
- target_siginfo_t info;
-
- info.si_signo = TARGET_SIGILL;
- info.si_errno = 0;
- info.si_code = TARGET_ILL_PRVREG;
- info._sifields._sigfault._addr = env->pc;
- queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
-}
-
-static void do_signal(CPUTLGState *env, int signo, int sigcode)
-{
- target_siginfo_t info;
-
- info.si_signo = signo;
- info.si_errno = 0;
- info._sifields._sigfault._addr = env->pc;
-
- if (signo == TARGET_SIGSEGV) {
- /* The passed in sigcode is a dummy; check for a page mapping
- and pass either MAPERR or ACCERR. */
- target_ulong addr = env->excaddr;
- info._sifields._sigfault._addr = addr;
- if (page_check_range(addr, 1, PAGE_VALID) < 0) {
- sigcode = TARGET_SEGV_MAPERR;
- } else {
- sigcode = TARGET_SEGV_ACCERR;
- }
- }
- info.si_code = sigcode;
-
- queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
-}
-
-static void gen_sigsegv_maperr(CPUTLGState *env, target_ulong addr)
-{
- env->excaddr = addr;
- do_signal(env, TARGET_SIGSEGV, 0);
-}
-
-static void set_regval(CPUTLGState *env, uint8_t reg, uint64_t val)
-{
- if (unlikely(reg >= TILEGX_R_COUNT)) {
- switch (reg) {
- case TILEGX_R_SN:
- case TILEGX_R_ZERO:
- return;
- case TILEGX_R_IDN0:
- case TILEGX_R_IDN1:
- case TILEGX_R_UDN0:
- case TILEGX_R_UDN1:
- case TILEGX_R_UDN2:
- case TILEGX_R_UDN3:
- gen_sigill_reg(env);
- return;
- default:
- g_assert_not_reached();
- }
- }
- env->regs[reg] = val;
-}
-
-/*
- * Compare the 8-byte contents of the CmpValue SPR with the 8-byte value in
- * memory at the address held in the first source register. If the values are
- * not equal, then no memory operation is performed. If the values are equal,
- * the 8-byte quantity from the second source register is written into memory
- * at the address held in the first source register. In either case, the result
- * of the instruction is the value read from memory. The compare and write to
- * memory are atomic and thus can be used for synchronization purposes. This
- * instruction only operates for addresses aligned to a 8-byte boundary.
- * Unaligned memory access causes an Unaligned Data Reference interrupt.
- *
- * Functional Description (64-bit)
- * uint64_t memVal = memoryReadDoubleWord (rf[SrcA]);
- * rf[Dest] = memVal;
- * if (memVal == SPR[CmpValueSPR])
- * memoryWriteDoubleWord (rf[SrcA], rf[SrcB]);
- *
- * Functional Description (32-bit)
- * uint64_t memVal = signExtend32 (memoryReadWord (rf[SrcA]));
- * rf[Dest] = memVal;
- * if (memVal == signExtend32 (SPR[CmpValueSPR]))
- * memoryWriteWord (rf[SrcA], rf[SrcB]);
- *
- *
- * This function also processes exch and exch4 which need not process SPR.
- */
-static void do_exch(CPUTLGState *env, bool quad, bool cmp)
-{
- target_ulong addr;
- target_long val, sprval;
-
- start_exclusive();
-
- addr = env->atomic_srca;
- if (quad ? get_user_s64(val, addr) : get_user_s32(val, addr)) {
- goto sigsegv_maperr;
- }
-
- if (cmp) {
- if (quad) {
- sprval = env->spregs[TILEGX_SPR_CMPEXCH];
- } else {
- sprval = sextract64(env->spregs[TILEGX_SPR_CMPEXCH], 0, 32);
- }
- }
-
- if (!cmp || val == sprval) {
- target_long valb = env->atomic_srcb;
- if (quad ? put_user_u64(valb, addr) : put_user_u32(valb, addr)) {
- goto sigsegv_maperr;
- }
- }
-
- set_regval(env, env->atomic_dstr, val);
- end_exclusive();
- return;
-
- sigsegv_maperr:
- end_exclusive();
- gen_sigsegv_maperr(env, addr);
-}
-
-static void do_fetch(CPUTLGState *env, int trapnr, bool quad)
-{
- int8_t write = 1;
- target_ulong addr;
- target_long val, valb;
-
- start_exclusive();
-
- addr = env->atomic_srca;
- valb = env->atomic_srcb;
- if (quad ? get_user_s64(val, addr) : get_user_s32(val, addr)) {
- goto sigsegv_maperr;
- }
-
- switch (trapnr) {
- case TILEGX_EXCP_OPCODE_FETCHADD:
- case TILEGX_EXCP_OPCODE_FETCHADD4:
- valb += val;
- break;
- case TILEGX_EXCP_OPCODE_FETCHADDGEZ:
- valb += val;
- if (valb < 0) {
- write = 0;
- }
- break;
- case TILEGX_EXCP_OPCODE_FETCHADDGEZ4:
- valb += val;
- if ((int32_t)valb < 0) {
- write = 0;
- }
- break;
- case TILEGX_EXCP_OPCODE_FETCHAND:
- case TILEGX_EXCP_OPCODE_FETCHAND4:
- valb &= val;
- break;
- case TILEGX_EXCP_OPCODE_FETCHOR:
- case TILEGX_EXCP_OPCODE_FETCHOR4:
- valb |= val;
- break;
- default:
- g_assert_not_reached();
- }
-
- if (write) {
- if (quad ? put_user_u64(valb, addr) : put_user_u32(valb, addr)) {
- goto sigsegv_maperr;
- }
- }
-
- set_regval(env, env->atomic_dstr, val);
- end_exclusive();
- return;
-
- sigsegv_maperr:
- end_exclusive();
- gen_sigsegv_maperr(env, addr);
-}
-
-void cpu_loop(CPUTLGState *env)
-{
- CPUState *cs = CPU(tilegx_env_get_cpu(env));
- int trapnr;
-
- while (1) {
- cpu_exec_start(cs);
- trapnr = cpu_exec(cs);
- cpu_exec_end(cs);
- process_queued_cpu_work(cs);
-
- switch (trapnr) {
- case TILEGX_EXCP_SYSCALL:
- {
- abi_ulong ret = do_syscall(env, env->regs[TILEGX_R_NR],
- env->regs[0], env->regs[1],
- env->regs[2], env->regs[3],
- env->regs[4], env->regs[5],
- env->regs[6], env->regs[7]);
- if (ret == -TARGET_ERESTARTSYS) {
- env->pc -= 8;
- } else if (ret != -TARGET_QEMU_ESIGRETURN) {
- env->regs[TILEGX_R_RE] = ret;
- env->regs[TILEGX_R_ERR] = TILEGX_IS_ERRNO(ret) ? -ret : 0;
- }
- break;
- }
- case TILEGX_EXCP_OPCODE_EXCH:
- do_exch(env, true, false);
- break;
- case TILEGX_EXCP_OPCODE_EXCH4:
- do_exch(env, false, false);
- break;
- case TILEGX_EXCP_OPCODE_CMPEXCH:
- do_exch(env, true, true);
- break;
- case TILEGX_EXCP_OPCODE_CMPEXCH4:
- do_exch(env, false, true);
- break;
- case TILEGX_EXCP_OPCODE_FETCHADD:
- case TILEGX_EXCP_OPCODE_FETCHADDGEZ:
- case TILEGX_EXCP_OPCODE_FETCHAND:
- case TILEGX_EXCP_OPCODE_FETCHOR:
- do_fetch(env, trapnr, true);
- break;
- case TILEGX_EXCP_OPCODE_FETCHADD4:
- case TILEGX_EXCP_OPCODE_FETCHADDGEZ4:
- case TILEGX_EXCP_OPCODE_FETCHAND4:
- case TILEGX_EXCP_OPCODE_FETCHOR4:
- do_fetch(env, trapnr, false);
- break;
- case TILEGX_EXCP_SIGNAL:
- do_signal(env, env->signo, env->sigcode);
- break;
- case TILEGX_EXCP_REG_IDN_ACCESS:
- case TILEGX_EXCP_REG_UDN_ACCESS:
- gen_sigill_reg(env);
- break;
- case EXCP_ATOMIC:
- cpu_exec_step_atomic(cs);
- break;
- default:
- fprintf(stderr, "trapnr is %d[0x%x].\n", trapnr, trapnr);
- g_assert_not_reached();
- }
- process_pending_signals(env);
- }
-}
-
-#endif
-
#ifdef TARGET_RISCV
void cpu_loop(CPURISCVState *env)
env->pc = regs->sepc;
env->gpr[xSP] = regs->sp;
}
-#elif defined(TARGET_TILEGX)
- {
- int i;
- for (i = 0; i < TILEGX_R_COUNT; i++) {
- env->regs[i] = regs->regs[i];
- }
- for (i = 0; i < TILEGX_SPR_COUNT; i++) {
- env->spregs[i] = 0;
- }
- env->pc = regs->pc;
- }
#elif defined(TARGET_HPPA)
{
int i;
#include "qemu.h"
#include "cpu_loop-common.h"
+static void gen_sigill_reg(CPUTLGState *env)
+{
+ target_siginfo_t info;
+
+ info.si_signo = TARGET_SIGILL;
+ info.si_errno = 0;
+ info.si_code = TARGET_ILL_PRVREG;
+ info._sifields._sigfault._addr = env->pc;
+ queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+}
+
+static void do_signal(CPUTLGState *env, int signo, int sigcode)
+{
+ target_siginfo_t info;
+
+ info.si_signo = signo;
+ info.si_errno = 0;
+ info._sifields._sigfault._addr = env->pc;
+
+ if (signo == TARGET_SIGSEGV) {
+ /* The passed in sigcode is a dummy; check for a page mapping
+ and pass either MAPERR or ACCERR. */
+ target_ulong addr = env->excaddr;
+ info._sifields._sigfault._addr = addr;
+ if (page_check_range(addr, 1, PAGE_VALID) < 0) {
+ sigcode = TARGET_SEGV_MAPERR;
+ } else {
+ sigcode = TARGET_SEGV_ACCERR;
+ }
+ }
+ info.si_code = sigcode;
+
+ queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+}
+
+static void gen_sigsegv_maperr(CPUTLGState *env, target_ulong addr)
+{
+ env->excaddr = addr;
+ do_signal(env, TARGET_SIGSEGV, 0);
+}
+
+static void set_regval(CPUTLGState *env, uint8_t reg, uint64_t val)
+{
+ if (unlikely(reg >= TILEGX_R_COUNT)) {
+ switch (reg) {
+ case TILEGX_R_SN:
+ case TILEGX_R_ZERO:
+ return;
+ case TILEGX_R_IDN0:
+ case TILEGX_R_IDN1:
+ case TILEGX_R_UDN0:
+ case TILEGX_R_UDN1:
+ case TILEGX_R_UDN2:
+ case TILEGX_R_UDN3:
+ gen_sigill_reg(env);
+ return;
+ default:
+ g_assert_not_reached();
+ }
+ }
+ env->regs[reg] = val;
+}
+
+/*
+ * Compare the 8-byte contents of the CmpValue SPR with the 8-byte value in
+ * memory at the address held in the first source register. If the values are
+ * not equal, then no memory operation is performed. If the values are equal,
+ * the 8-byte quantity from the second source register is written into memory
+ * at the address held in the first source register. In either case, the result
+ * of the instruction is the value read from memory. The compare and write to
+ * memory are atomic and thus can be used for synchronization purposes. This
+ * instruction only operates for addresses aligned to a 8-byte boundary.
+ * Unaligned memory access causes an Unaligned Data Reference interrupt.
+ *
+ * Functional Description (64-bit)
+ * uint64_t memVal = memoryReadDoubleWord (rf[SrcA]);
+ * rf[Dest] = memVal;
+ * if (memVal == SPR[CmpValueSPR])
+ * memoryWriteDoubleWord (rf[SrcA], rf[SrcB]);
+ *
+ * Functional Description (32-bit)
+ * uint64_t memVal = signExtend32 (memoryReadWord (rf[SrcA]));
+ * rf[Dest] = memVal;
+ * if (memVal == signExtend32 (SPR[CmpValueSPR]))
+ * memoryWriteWord (rf[SrcA], rf[SrcB]);
+ *
+ *
+ * This function also processes exch and exch4 which need not process SPR.
+ */
+static void do_exch(CPUTLGState *env, bool quad, bool cmp)
+{
+ target_ulong addr;
+ target_long val, sprval;
+
+ start_exclusive();
+
+ addr = env->atomic_srca;
+ if (quad ? get_user_s64(val, addr) : get_user_s32(val, addr)) {
+ goto sigsegv_maperr;
+ }
+
+ if (cmp) {
+ if (quad) {
+ sprval = env->spregs[TILEGX_SPR_CMPEXCH];
+ } else {
+ sprval = sextract64(env->spregs[TILEGX_SPR_CMPEXCH], 0, 32);
+ }
+ }
+
+ if (!cmp || val == sprval) {
+ target_long valb = env->atomic_srcb;
+ if (quad ? put_user_u64(valb, addr) : put_user_u32(valb, addr)) {
+ goto sigsegv_maperr;
+ }
+ }
+
+ set_regval(env, env->atomic_dstr, val);
+ end_exclusive();
+ return;
+
+ sigsegv_maperr:
+ end_exclusive();
+ gen_sigsegv_maperr(env, addr);
+}
+
+static void do_fetch(CPUTLGState *env, int trapnr, bool quad)
+{
+ int8_t write = 1;
+ target_ulong addr;
+ target_long val, valb;
+
+ start_exclusive();
+
+ addr = env->atomic_srca;
+ valb = env->atomic_srcb;
+ if (quad ? get_user_s64(val, addr) : get_user_s32(val, addr)) {
+ goto sigsegv_maperr;
+ }
+
+ switch (trapnr) {
+ case TILEGX_EXCP_OPCODE_FETCHADD:
+ case TILEGX_EXCP_OPCODE_FETCHADD4:
+ valb += val;
+ break;
+ case TILEGX_EXCP_OPCODE_FETCHADDGEZ:
+ valb += val;
+ if (valb < 0) {
+ write = 0;
+ }
+ break;
+ case TILEGX_EXCP_OPCODE_FETCHADDGEZ4:
+ valb += val;
+ if ((int32_t)valb < 0) {
+ write = 0;
+ }
+ break;
+ case TILEGX_EXCP_OPCODE_FETCHAND:
+ case TILEGX_EXCP_OPCODE_FETCHAND4:
+ valb &= val;
+ break;
+ case TILEGX_EXCP_OPCODE_FETCHOR:
+ case TILEGX_EXCP_OPCODE_FETCHOR4:
+ valb |= val;
+ break;
+ default:
+ g_assert_not_reached();
+ }
+
+ if (write) {
+ if (quad ? put_user_u64(valb, addr) : put_user_u32(valb, addr)) {
+ goto sigsegv_maperr;
+ }
+ }
+
+ set_regval(env, env->atomic_dstr, val);
+ end_exclusive();
+ return;
+
+ sigsegv_maperr:
+ end_exclusive();
+ gen_sigsegv_maperr(env, addr);
+}
+
+void cpu_loop(CPUTLGState *env)
+{
+ CPUState *cs = CPU(tilegx_env_get_cpu(env));
+ int trapnr;
+
+ while (1) {
+ cpu_exec_start(cs);
+ trapnr = cpu_exec(cs);
+ cpu_exec_end(cs);
+ process_queued_cpu_work(cs);
+
+ switch (trapnr) {
+ case TILEGX_EXCP_SYSCALL:
+ {
+ abi_ulong ret = do_syscall(env, env->regs[TILEGX_R_NR],
+ env->regs[0], env->regs[1],
+ env->regs[2], env->regs[3],
+ env->regs[4], env->regs[5],
+ env->regs[6], env->regs[7]);
+ if (ret == -TARGET_ERESTARTSYS) {
+ env->pc -= 8;
+ } else if (ret != -TARGET_QEMU_ESIGRETURN) {
+ env->regs[TILEGX_R_RE] = ret;
+ env->regs[TILEGX_R_ERR] = TILEGX_IS_ERRNO(ret) ? -ret : 0;
+ }
+ break;
+ }
+ case TILEGX_EXCP_OPCODE_EXCH:
+ do_exch(env, true, false);
+ break;
+ case TILEGX_EXCP_OPCODE_EXCH4:
+ do_exch(env, false, false);
+ break;
+ case TILEGX_EXCP_OPCODE_CMPEXCH:
+ do_exch(env, true, true);
+ break;
+ case TILEGX_EXCP_OPCODE_CMPEXCH4:
+ do_exch(env, false, true);
+ break;
+ case TILEGX_EXCP_OPCODE_FETCHADD:
+ case TILEGX_EXCP_OPCODE_FETCHADDGEZ:
+ case TILEGX_EXCP_OPCODE_FETCHAND:
+ case TILEGX_EXCP_OPCODE_FETCHOR:
+ do_fetch(env, trapnr, true);
+ break;
+ case TILEGX_EXCP_OPCODE_FETCHADD4:
+ case TILEGX_EXCP_OPCODE_FETCHADDGEZ4:
+ case TILEGX_EXCP_OPCODE_FETCHAND4:
+ case TILEGX_EXCP_OPCODE_FETCHOR4:
+ do_fetch(env, trapnr, false);
+ break;
+ case TILEGX_EXCP_SIGNAL:
+ do_signal(env, env->signo, env->sigcode);
+ break;
+ case TILEGX_EXCP_REG_IDN_ACCESS:
+ case TILEGX_EXCP_REG_UDN_ACCESS:
+ gen_sigill_reg(env);
+ break;
+ case EXCP_ATOMIC:
+ cpu_exec_step_atomic(cs);
+ break;
+ default:
+ fprintf(stderr, "trapnr is %d[0x%x].\n", trapnr, trapnr);
+ g_assert_not_reached();
+ }
+ process_pending_signals(env);
+ }
+}
+
void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs)
{
+ int i;
+ for (i = 0; i < TILEGX_R_COUNT; i++) {
+ env->regs[i] = regs->regs[i];
+ }
+ for (i = 0; i < TILEGX_SPR_COUNT; i++) {
+ env->spregs[i] = 0;
+ }
+ env->pc = regs->pc;
}