From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: qemu-devel@nongnu.org
Cc: "Aleksandar Rikalo" <aleksandar.rikalo@syrmia.com>,
"Huacai Chen" <chenhuacai@kernel.org>,
"Richard Henderson" <richard.henderson@linaro.org>,
"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
"Aurelien Jarno" <aurelien@aurel32.net>
Subject: [PATCH 21/26] target/mips: Move exception management code to exception.c
Date: Sun, 18 Apr 2021 18:31:29 +0200 [thread overview]
Message-ID: <20210418163134.1133100-22-f4bug@amsat.org> (raw)
In-Reply-To: <20210418163134.1133100-1-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
target/mips/internal.h | 13 ---
target/mips/tcg/tcg-internal.h | 14 +++
target/mips/cpu.c | 113 ----------------------
target/mips/exception.c | 169 +++++++++++++++++++++++++++++++++
target/mips/op_helper.c | 37 --------
target/mips/meson.build | 1 +
6 files changed, 184 insertions(+), 163 deletions(-)
create mode 100644 target/mips/exception.c
diff --git a/target/mips/internal.h b/target/mips/internal.h
index b3f945f6cad..1e085b0625c 100644
--- a/target/mips/internal.h
+++ b/target/mips/internal.h
@@ -80,7 +80,6 @@ extern const char * const fregnames[32];
extern const struct mips_def_t mips_defs[];
extern const int mips_defs_number;
-bool mips_cpu_exec_interrupt(CPUState *cpu, int int_req);
int mips_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg);
int mips_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
void mips_cpu_do_unaligned_access(CPUState *cpu, vaddr addr,
@@ -400,16 +399,4 @@ void sync_c0_status(CPUMIPSState *env, CPUMIPSState *cpu, int tc);
void cpu_mips_store_status(CPUMIPSState *env, target_ulong val);
void cpu_mips_store_cause(CPUMIPSState *env, target_ulong val);
-const char *mips_exception_name(int32_t exception);
-
-void QEMU_NORETURN do_raise_exception_err(CPUMIPSState *env, uint32_t exception,
- int error_code, uintptr_t pc);
-
-static inline void QEMU_NORETURN do_raise_exception(CPUMIPSState *env,
- uint32_t exception,
- uintptr_t pc)
-{
- do_raise_exception_err(env, exception, 0, pc);
-}
-
#endif
diff --git a/target/mips/tcg/tcg-internal.h b/target/mips/tcg/tcg-internal.h
index e507dd1630f..70f0d5da436 100644
--- a/target/mips/tcg/tcg-internal.h
+++ b/target/mips/tcg/tcg-internal.h
@@ -14,11 +14,25 @@
#include "hw/core/cpu.h"
#include "cpu.h"
+void mips_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb);
void mips_cpu_do_interrupt(CPUState *cpu);
+bool mips_cpu_exec_interrupt(CPUState *cpu, int int_req);
bool mips_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
MMUAccessType access_type, int mmu_idx,
bool probe, uintptr_t retaddr);
+const char *mips_exception_name(int32_t exception);
+
+void QEMU_NORETURN do_raise_exception_err(CPUMIPSState *env, uint32_t exception,
+ int error_code, uintptr_t pc);
+
+static inline void QEMU_NORETURN do_raise_exception(CPUMIPSState *env,
+ uint32_t exception,
+ uintptr_t pc)
+{
+ do_raise_exception_err(env, exception, 0, pc);
+}
+
#if !defined(CONFIG_USER_ONLY)
void mmu_init(CPUMIPSState *env, const mips_def_t *def);
diff --git a/target/mips/cpu.c b/target/mips/cpu.c
index e756d75667f..38328ba0927 100644
--- a/target/mips/cpu.c
+++ b/target/mips/cpu.c
@@ -222,112 +222,12 @@ static void mips_cpu_dump_state(CPUState *cs, FILE *f, int flags)
}
}
-static const char * const excp_names[EXCP_LAST + 1] = {
- [EXCP_RESET] = "reset",
- [EXCP_SRESET] = "soft reset",
- [EXCP_DSS] = "debug single step",
- [EXCP_DINT] = "debug interrupt",
- [EXCP_NMI] = "non-maskable interrupt",
- [EXCP_MCHECK] = "machine check",
- [EXCP_EXT_INTERRUPT] = "interrupt",
- [EXCP_DFWATCH] = "deferred watchpoint",
- [EXCP_DIB] = "debug instruction breakpoint",
- [EXCP_IWATCH] = "instruction fetch watchpoint",
- [EXCP_AdEL] = "address error load",
- [EXCP_AdES] = "address error store",
- [EXCP_TLBF] = "TLB refill",
- [EXCP_IBE] = "instruction bus error",
- [EXCP_DBp] = "debug breakpoint",
- [EXCP_SYSCALL] = "syscall",
- [EXCP_BREAK] = "break",
- [EXCP_CpU] = "coprocessor unusable",
- [EXCP_RI] = "reserved instruction",
- [EXCP_OVERFLOW] = "arithmetic overflow",
- [EXCP_TRAP] = "trap",
- [EXCP_FPE] = "floating point",
- [EXCP_DDBS] = "debug data break store",
- [EXCP_DWATCH] = "data watchpoint",
- [EXCP_LTLBL] = "TLB modify",
- [EXCP_TLBL] = "TLB load",
- [EXCP_TLBS] = "TLB store",
- [EXCP_DBE] = "data bus error",
- [EXCP_DDBL] = "debug data break load",
- [EXCP_THREAD] = "thread",
- [EXCP_MDMX] = "MDMX",
- [EXCP_C2E] = "precise coprocessor 2",
- [EXCP_CACHE] = "cache error",
- [EXCP_TLBXI] = "TLB execute-inhibit",
- [EXCP_TLBRI] = "TLB read-inhibit",
- [EXCP_MSADIS] = "MSA disabled",
- [EXCP_MSAFPE] = "MSA floating point",
-};
-
-const char *mips_exception_name(int32_t exception)
-{
- if (exception < 0 || exception > EXCP_LAST) {
- return "unknown";
- }
- return excp_names[exception];
-}
-
void cpu_set_exception_base(int vp_index, target_ulong address)
{
MIPSCPU *vp = MIPS_CPU(qemu_get_cpu(vp_index));
vp->env.exception_base = address;
}
-target_ulong exception_resume_pc(CPUMIPSState *env)
-{
- target_ulong bad_pc;
- target_ulong isa_mode;
-
- isa_mode = !!(env->hflags & MIPS_HFLAG_M16);
- bad_pc = env->active_tc.PC | isa_mode;
- if (env->hflags & MIPS_HFLAG_BMASK) {
- /*
- * If the exception was raised from a delay slot, come back to
- * the jump.
- */
- bad_pc -= (env->hflags & MIPS_HFLAG_B16 ? 2 : 4);
- }
-
- return bad_pc;
-}
-
-bool mips_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
-{
- if (interrupt_request & CPU_INTERRUPT_HARD) {
- MIPSCPU *cpu = MIPS_CPU(cs);
- CPUMIPSState *env = &cpu->env;
-
- if (cpu_mips_hw_interrupts_enabled(env) &&
- cpu_mips_hw_interrupts_pending(env)) {
- /* Raise it */
- cs->exception_index = EXCP_EXT_INTERRUPT;
- env->error_code = 0;
- mips_cpu_do_interrupt(cs);
- return true;
- }
- }
- return false;
-}
-
-void QEMU_NORETURN do_raise_exception_err(CPUMIPSState *env,
- uint32_t exception,
- int error_code,
- uintptr_t pc)
-{
- CPUState *cs = env_cpu(env);
-
- qemu_log_mask(CPU_LOG_INT, "%s: %d (%s) %d\n",
- __func__, exception, mips_exception_name(exception),
- error_code);
- cs->exception_index = exception;
- env->error_code = error_code;
-
- cpu_loop_exit_restore(cs, pc);
-}
-
static void mips_cpu_set_pc(CPUState *cs, vaddr value)
{
MIPSCPU *cpu = MIPS_CPU(cs);
@@ -341,19 +241,6 @@ static void mips_cpu_set_pc(CPUState *cs, vaddr value)
}
}
-#ifdef CONFIG_TCG
-static void mips_cpu_synchronize_from_tb(CPUState *cs,
- const TranslationBlock *tb)
-{
- MIPSCPU *cpu = MIPS_CPU(cs);
- CPUMIPSState *env = &cpu->env;
-
- env->active_tc.PC = tb->pc;
- env->hflags &= ~MIPS_HFLAG_BMASK;
- env->hflags |= tb->flags & MIPS_HFLAG_BMASK;
-}
-#endif /* CONFIG_TCG */
-
static bool mips_cpu_has_work(CPUState *cs)
{
MIPSCPU *cpu = MIPS_CPU(cs);
diff --git a/target/mips/exception.c b/target/mips/exception.c
new file mode 100644
index 00000000000..ee8319c4e43
--- /dev/null
+++ b/target/mips/exception.c
@@ -0,0 +1,169 @@
+/*
+ * MIPS Exceptions processing helpers for QEMU.
+ *
+ * Copyright (c) 2004-2005 Jocelyn Mayer
+ *
+ * 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 2.1 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
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "cpu.h"
+#include "internal.h"
+#include "exec/helper-proto.h"
+#include "exec/exec-all.h"
+
+target_ulong exception_resume_pc(CPUMIPSState *env)
+{
+ target_ulong bad_pc;
+ target_ulong isa_mode;
+
+ isa_mode = !!(env->hflags & MIPS_HFLAG_M16);
+ bad_pc = env->active_tc.PC | isa_mode;
+ if (env->hflags & MIPS_HFLAG_BMASK) {
+ /*
+ * If the exception was raised from a delay slot, come back to
+ * the jump.
+ */
+ bad_pc -= (env->hflags & MIPS_HFLAG_B16 ? 2 : 4);
+ }
+
+ return bad_pc;
+}
+
+void helper_raise_exception_err(CPUMIPSState *env, uint32_t exception,
+ int error_code)
+{
+ do_raise_exception_err(env, exception, error_code, 0);
+}
+
+void helper_raise_exception(CPUMIPSState *env, uint32_t exception)
+{
+ do_raise_exception(env, exception, GETPC());
+}
+
+void helper_raise_exception_debug(CPUMIPSState *env)
+{
+ do_raise_exception(env, EXCP_DEBUG, 0);
+}
+
+static void raise_exception(CPUMIPSState *env, uint32_t exception)
+{
+ do_raise_exception(env, exception, 0);
+}
+
+void helper_wait(CPUMIPSState *env)
+{
+ CPUState *cs = env_cpu(env);
+
+ cs->halted = 1;
+ cpu_reset_interrupt(cs, CPU_INTERRUPT_WAKE);
+ /*
+ * Last instruction in the block, PC was updated before
+ * - no need to recover PC and icount.
+ */
+ raise_exception(env, EXCP_HLT);
+}
+
+void mips_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb)
+{
+ MIPSCPU *cpu = MIPS_CPU(cs);
+ CPUMIPSState *env = &cpu->env;
+
+ env->active_tc.PC = tb->pc;
+ env->hflags &= ~MIPS_HFLAG_BMASK;
+ env->hflags |= tb->flags & MIPS_HFLAG_BMASK;
+}
+
+bool mips_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
+{
+ if (interrupt_request & CPU_INTERRUPT_HARD) {
+ MIPSCPU *cpu = MIPS_CPU(cs);
+ CPUMIPSState *env = &cpu->env;
+
+ if (cpu_mips_hw_interrupts_enabled(env) &&
+ cpu_mips_hw_interrupts_pending(env)) {
+ /* Raise it */
+ cs->exception_index = EXCP_EXT_INTERRUPT;
+ env->error_code = 0;
+ mips_cpu_do_interrupt(cs);
+ return true;
+ }
+ }
+ return false;
+}
+
+static const char * const excp_names[EXCP_LAST + 1] = {
+ [EXCP_RESET] = "reset",
+ [EXCP_SRESET] = "soft reset",
+ [EXCP_DSS] = "debug single step",
+ [EXCP_DINT] = "debug interrupt",
+ [EXCP_NMI] = "non-maskable interrupt",
+ [EXCP_MCHECK] = "machine check",
+ [EXCP_EXT_INTERRUPT] = "interrupt",
+ [EXCP_DFWATCH] = "deferred watchpoint",
+ [EXCP_DIB] = "debug instruction breakpoint",
+ [EXCP_IWATCH] = "instruction fetch watchpoint",
+ [EXCP_AdEL] = "address error load",
+ [EXCP_AdES] = "address error store",
+ [EXCP_TLBF] = "TLB refill",
+ [EXCP_IBE] = "instruction bus error",
+ [EXCP_DBp] = "debug breakpoint",
+ [EXCP_SYSCALL] = "syscall",
+ [EXCP_BREAK] = "break",
+ [EXCP_CpU] = "coprocessor unusable",
+ [EXCP_RI] = "reserved instruction",
+ [EXCP_OVERFLOW] = "arithmetic overflow",
+ [EXCP_TRAP] = "trap",
+ [EXCP_FPE] = "floating point",
+ [EXCP_DDBS] = "debug data break store",
+ [EXCP_DWATCH] = "data watchpoint",
+ [EXCP_LTLBL] = "TLB modify",
+ [EXCP_TLBL] = "TLB load",
+ [EXCP_TLBS] = "TLB store",
+ [EXCP_DBE] = "data bus error",
+ [EXCP_DDBL] = "debug data break load",
+ [EXCP_THREAD] = "thread",
+ [EXCP_MDMX] = "MDMX",
+ [EXCP_C2E] = "precise coprocessor 2",
+ [EXCP_CACHE] = "cache error",
+ [EXCP_TLBXI] = "TLB execute-inhibit",
+ [EXCP_TLBRI] = "TLB read-inhibit",
+ [EXCP_MSADIS] = "MSA disabled",
+ [EXCP_MSAFPE] = "MSA floating point",
+};
+
+const char *mips_exception_name(int32_t exception)
+{
+ if (exception < 0 || exception > EXCP_LAST) {
+ return "unknown";
+ }
+ return excp_names[exception];
+}
+
+void QEMU_NORETURN do_raise_exception_err(CPUMIPSState *env,
+ uint32_t exception,
+ int error_code,
+ uintptr_t pc)
+{
+ CPUState *cs = env_cpu(env);
+
+ qemu_log_mask(CPU_LOG_INT, "%s: %d (%s) %d\n",
+ __func__, exception, mips_exception_name(exception),
+ error_code);
+ cs->exception_index = exception;
+ env->error_code = error_code;
+
+ cpu_loop_exit_restore(cs, pc);
+}
diff --git a/target/mips/op_helper.c b/target/mips/op_helper.c
index c6373d1de3f..94b03be0ea9 100644
--- a/target/mips/op_helper.c
+++ b/target/mips/op_helper.c
@@ -26,30 +26,6 @@
#include "exec/memop.h"
#include "fpu_helper.h"
-/*****************************************************************************/
-/* Exceptions processing helpers */
-
-void helper_raise_exception_err(CPUMIPSState *env, uint32_t exception,
- int error_code)
-{
- do_raise_exception_err(env, exception, error_code, 0);
-}
-
-void helper_raise_exception(CPUMIPSState *env, uint32_t exception)
-{
- do_raise_exception(env, exception, GETPC());
-}
-
-void helper_raise_exception_debug(CPUMIPSState *env)
-{
- do_raise_exception(env, EXCP_DEBUG, 0);
-}
-
-static void raise_exception(CPUMIPSState *env, uint32_t exception)
-{
- do_raise_exception(env, exception, 0);
-}
-
/* 64 bits arithmetic for 32 bits hosts */
static inline uint64_t get_HILO(CPUMIPSState *env)
{
@@ -400,19 +376,6 @@ void helper_pmon(CPUMIPSState *env, int function)
}
}
-void helper_wait(CPUMIPSState *env)
-{
- CPUState *cs = env_cpu(env);
-
- cs->halted = 1;
- cpu_reset_interrupt(cs, CPU_INTERRUPT_WAKE);
- /*
- * Last instruction in the block, PC was updated before
- * - no need to recover PC and icount.
- */
- raise_exception(env, EXCP_HLT);
-}
-
#if !defined(CONFIG_USER_ONLY)
void mips_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
diff --git a/target/mips/meson.build b/target/mips/meson.build
index ff5eb210dfd..e08077bfc18 100644
--- a/target/mips/meson.build
+++ b/target/mips/meson.build
@@ -24,6 +24,7 @@
mips_tcg_ss.add(gen)
mips_tcg_ss.add(files(
'dsp_helper.c',
+ 'exception.c',
'fpu_helper.c',
'ldst_helper.c',
'lmmi_helper.c',
--
2.26.3
next prev parent reply other threads:[~2021-04-18 16:58 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-18 16:31 [PATCH 00/26] target/mips: Re-org to allow KVM-only builds Philippe Mathieu-Daudé
2021-04-18 16:31 ` [PATCH 01/26] target/mips: Simplify meson TCG rules Philippe Mathieu-Daudé
2021-04-18 18:50 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 02/26] target/mips: Move IEEE rounding mode array to new source file Philippe Mathieu-Daudé
2021-04-18 18:51 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 03/26] target/mips: Move msa_reset() " Philippe Mathieu-Daudé
2021-04-18 18:54 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 04/26] target/mips: Make CPU/FPU regnames[] arrays global Philippe Mathieu-Daudé
2021-04-18 18:59 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 05/26] target/mips: Restrict mips_cpu_dump_state() to cpu.c Philippe Mathieu-Daudé
2021-04-18 19:02 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 06/26] target/mips: Extract load/store helpers to ldst_helper.c Philippe Mathieu-Daudé
2021-04-18 19:08 ` Richard Henderson
2021-04-18 22:46 ` Philippe Mathieu-Daudé
2021-04-18 16:31 ` [PATCH 07/26] meson: Introduce meson_user_arch source set for arch-specific user-mode Philippe Mathieu-Daudé
2021-04-18 19:09 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 08/26] target/mips: Introduce tcg-internal.h for TCG specific declarations Philippe Mathieu-Daudé
2021-04-18 19:13 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 09/26] target/mips: Add simple user-mode mips_cpu_do_interrupt() Philippe Mathieu-Daudé
2021-04-18 20:43 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 10/26] target/mips: Add simple user-mode mips_cpu_tlb_fill() Philippe Mathieu-Daudé
2021-04-18 20:44 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 11/26] target/mips: Move cpu_signal_handler definition around Philippe Mathieu-Daudé
2021-04-18 19:13 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 12/26] target/mips: Move sysemu specific files under sysemu/ subfolder Philippe Mathieu-Daudé
2021-04-18 19:15 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 13/26] target/mips: Move code related to physical addressing to sysemu/phys.c Philippe Mathieu-Daudé
2021-04-18 19:30 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 14/26] target/mips: Move sysemu TCG-specific code to tcg/sysemu/ subfolder Philippe Mathieu-Daudé
2021-04-18 19:35 ` Richard Henderson
2021-04-18 22:45 ` Philippe Mathieu-Daudé
2021-04-18 16:31 ` [PATCH 15/26] target/mips: Restrict mmu_init() to TCG Philippe Mathieu-Daudé
2021-04-18 19:35 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 16/26] target/mips: Move tlb_helper.c to tcg/sysemu/ Philippe Mathieu-Daudé
2021-04-18 19:40 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 17/26] target/mips: Restrict CPUMIPSTLBContext::map_address() handlers scope Philippe Mathieu-Daudé
2021-04-18 19:40 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 18/26] target/mips: Move Special opcodes to tcg/sysemu/special_helper.c Philippe Mathieu-Daudé
2021-04-18 19:47 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 19/26] target/mips: Move helper_cache() " Philippe Mathieu-Daudé
2021-04-18 19:52 ` Richard Henderson
2021-04-18 20:20 ` Philippe Mathieu-Daudé
2021-04-18 16:31 ` [PATCH 20/26] target/mips: Move TLB management helpers to tcg/sysemu/tlb_helper.c Philippe Mathieu-Daudé
2021-04-18 20:06 ` Richard Henderson
2021-04-18 16:31 ` Philippe Mathieu-Daudé [this message]
2021-04-18 20:23 ` [PATCH 21/26] target/mips: Move exception management code to exception.c Richard Henderson
2021-04-18 16:31 ` [PATCH 22/26] target/mips: Move CP0 helpers to sysemu/cp0.c Philippe Mathieu-Daudé
2021-04-18 20:28 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 23/26] target/mips: Move helper.h -> tcg/helper.h.inc Philippe Mathieu-Daudé
2021-04-18 20:34 ` Richard Henderson
2021-04-18 21:20 ` Philippe Mathieu-Daudé
2021-04-18 16:31 ` [PATCH 24/26] target/mips: Move TCG source files under tcg/ sub directory Philippe Mathieu-Daudé
2021-04-18 20:39 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 25/26] hw/mips: Restrict non-virtualized machines to TCG Philippe Mathieu-Daudé
2021-04-18 20:41 ` Richard Henderson
2021-04-18 16:31 ` [PATCH 26/26] gitlab-ci: Add KVM mips64el cross-build jobs Philippe Mathieu-Daudé
2021-04-18 20:42 ` Richard Henderson
2021-04-19 16:00 ` Willian Rampazzo
2021-04-18 16:45 ` [PATCH 00/26] target/mips: Re-org to allow KVM-only builds no-reply
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