[PULL 20/66] target/mips: Extract FPU helpers to 'fpu_helper.h'
Philippe Mathieu-Daudé
f4bug at amsat.org
Thu Jan 7 22:22:07 UTC 2021
Extract FPU specific helpers from "internal.h" to "fpu_helper.h".
Reviewed-by: Richard Henderson <richard.henderson at linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug at amsat.org>
Message-Id: <20201120210844.2625602-2-f4bug at amsat.org>
---
target/mips/fpu_helper.h | 59 ++++++++++++++++++++++++++++++++
target/mips/internal.h | 49 --------------------------
linux-user/mips/cpu_loop.c | 1 +
target/mips/fpu_helper.c | 1 +
target/mips/gdbstub.c | 1 +
target/mips/kvm.c | 1 +
target/mips/machine.c | 1 +
target/mips/msa_helper.c | 1 +
target/mips/op_helper.c | 2 +-
target/mips/translate.c | 1 +
target/mips/translate_init.c.inc | 2 ++
11 files changed, 69 insertions(+), 50 deletions(-)
create mode 100644 target/mips/fpu_helper.h
diff --git a/target/mips/fpu_helper.h b/target/mips/fpu_helper.h
new file mode 100644
index 00000000000..1c2d6d35a71
--- /dev/null
+++ b/target/mips/fpu_helper.h
@@ -0,0 +1,59 @@
+/*
+ * Helpers for emulation of FPU-related MIPS instructions.
+ *
+ * Copyright (C) 2004-2005 Jocelyn Mayer
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
+#include "fpu/softfloat-helpers.h"
+#include "cpu.h"
+
+extern const FloatRoundMode ieee_rm[4];
+
+uint32_t float_class_s(uint32_t arg, float_status *fst);
+uint64_t float_class_d(uint64_t arg, float_status *fst);
+
+static inline void restore_rounding_mode(CPUMIPSState *env)
+{
+ set_float_rounding_mode(ieee_rm[env->active_fpu.fcr31 & 3],
+ &env->active_fpu.fp_status);
+}
+
+static inline void restore_flush_mode(CPUMIPSState *env)
+{
+ set_flush_to_zero((env->active_fpu.fcr31 & (1 << FCR31_FS)) != 0,
+ &env->active_fpu.fp_status);
+}
+
+static inline void restore_snan_bit_mode(CPUMIPSState *env)
+{
+ set_snan_bit_is_one((env->active_fpu.fcr31 & (1 << FCR31_NAN2008)) == 0,
+ &env->active_fpu.fp_status);
+}
+
+static inline void restore_fp_status(CPUMIPSState *env)
+{
+ restore_rounding_mode(env);
+ restore_flush_mode(env);
+ restore_snan_bit_mode(env);
+}
+
+/* MSA */
+
+enum CPUMIPSMSADataFormat {
+ DF_BYTE = 0,
+ DF_HALF,
+ DF_WORD,
+ DF_DOUBLE
+};
+
+static inline void restore_msa_fp_status(CPUMIPSState *env)
+{
+ float_status *status = &env->active_tc.msa_fp_status;
+ int rounding_mode = (env->active_tc.msacsr & MSACSR_RM_MASK) >> MSACSR_RM;
+ bool flush_to_zero = (env->active_tc.msacsr & MSACSR_FS_MASK) != 0;
+
+ set_float_rounding_mode(ieee_rm[rounding_mode], status);
+ set_flush_to_zero(flush_to_zero, status);
+ set_flush_inputs_to_zero(flush_to_zero, status);
+}
diff --git a/target/mips/internal.h b/target/mips/internal.h
index 77a648bcf9c..f159187b246 100644
--- a/target/mips/internal.h
+++ b/target/mips/internal.h
@@ -9,7 +9,6 @@
#define MIPS_INTERNAL_H
#include "exec/memattrs.h"
-#include "fpu/softfloat-helpers.h"
/*
* MMU types, the first four entries have the same layout as the
@@ -75,13 +74,6 @@ struct mips_def_t {
extern const struct mips_def_t mips_defs[];
extern const int mips_defs_number;
-enum CPUMIPSMSADataFormat {
- DF_BYTE = 0,
- DF_HALF,
- DF_WORD,
- DF_DOUBLE
-};
-
void mips_cpu_do_interrupt(CPUState *cpu);
bool mips_cpu_exec_interrupt(CPUState *cpu, int int_req);
void mips_cpu_dump_state(CPUState *cpu, FILE *f, int flags);
@@ -220,49 +212,8 @@ bool mips_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
bool probe, uintptr_t retaddr);
/* op_helper.c */
-uint32_t float_class_s(uint32_t arg, float_status *fst);
-uint64_t float_class_d(uint64_t arg, float_status *fst);
-
-extern const FloatRoundMode ieee_rm[4];
-
void update_pagemask(CPUMIPSState *env, target_ulong arg1, int32_t *pagemask);
-static inline void restore_rounding_mode(CPUMIPSState *env)
-{
- set_float_rounding_mode(ieee_rm[env->active_fpu.fcr31 & 3],
- &env->active_fpu.fp_status);
-}
-
-static inline void restore_flush_mode(CPUMIPSState *env)
-{
- set_flush_to_zero((env->active_fpu.fcr31 & (1 << FCR31_FS)) != 0,
- &env->active_fpu.fp_status);
-}
-
-static inline void restore_snan_bit_mode(CPUMIPSState *env)
-{
- set_snan_bit_is_one((env->active_fpu.fcr31 & (1 << FCR31_NAN2008)) == 0,
- &env->active_fpu.fp_status);
-}
-
-static inline void restore_fp_status(CPUMIPSState *env)
-{
- restore_rounding_mode(env);
- restore_flush_mode(env);
- restore_snan_bit_mode(env);
-}
-
-static inline void restore_msa_fp_status(CPUMIPSState *env)
-{
- float_status *status = &env->active_tc.msa_fp_status;
- int rounding_mode = (env->active_tc.msacsr & MSACSR_RM_MASK) >> MSACSR_RM;
- bool flush_to_zero = (env->active_tc.msacsr & MSACSR_FS_MASK) != 0;
-
- set_float_rounding_mode(ieee_rm[rounding_mode], status);
- set_flush_to_zero(flush_to_zero, status);
- set_flush_inputs_to_zero(flush_to_zero, status);
-}
-
static inline void restore_pamask(CPUMIPSState *env)
{
if (env->hflags & MIPS_HFLAG_ELPA) {
diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c
index 19947448a25..9d813ece4e7 100644
--- a/linux-user/mips/cpu_loop.c
+++ b/linux-user/mips/cpu_loop.c
@@ -23,6 +23,7 @@
#include "cpu_loop-common.h"
#include "elf.h"
#include "internal.h"
+#include "fpu_helper.h"
# ifdef TARGET_ABI_MIPSO32
# define MIPS_SYSCALL_NUMBER_UNUSED -1
diff --git a/target/mips/fpu_helper.c b/target/mips/fpu_helper.c
index 91b6a2e11fc..6dd853259e2 100644
--- a/target/mips/fpu_helper.c
+++ b/target/mips/fpu_helper.c
@@ -27,6 +27,7 @@
#include "exec/exec-all.h"
#include "exec/cpu_ldst.h"
#include "fpu/softfloat.h"
+#include "fpu_helper.h"
/* Complex FPU operations which may need stack space. */
diff --git a/target/mips/gdbstub.c b/target/mips/gdbstub.c
index e39f8d75cf0..f1c2a2cf6d6 100644
--- a/target/mips/gdbstub.c
+++ b/target/mips/gdbstub.c
@@ -21,6 +21,7 @@
#include "cpu.h"
#include "internal.h"
#include "exec/gdbstub.h"
+#include "fpu_helper.h"
int mips_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
{
diff --git a/target/mips/kvm.c b/target/mips/kvm.c
index 477692566a4..a5b6fe35dbc 100644
--- a/target/mips/kvm.c
+++ b/target/mips/kvm.c
@@ -24,6 +24,7 @@
#include "sysemu/runstate.h"
#include "kvm_mips.h"
#include "hw/boards.h"
+#include "fpu_helper.h"
#define DEBUG_KVM 0
diff --git a/target/mips/machine.c b/target/mips/machine.c
index 77afe654e91..b5fda6a2786 100644
--- a/target/mips/machine.c
+++ b/target/mips/machine.c
@@ -2,6 +2,7 @@
#include "cpu.h"
#include "internal.h"
#include "migration/cpu.h"
+#include "fpu_helper.h"
static int cpu_post_load(void *opaque, int version_id)
{
diff --git a/target/mips/msa_helper.c b/target/mips/msa_helper.c
index 249f0fdad80..b89b4c44902 100644
--- a/target/mips/msa_helper.c
+++ b/target/mips/msa_helper.c
@@ -23,6 +23,7 @@
#include "exec/exec-all.h"
#include "exec/helper-proto.h"
#include "fpu/softfloat.h"
+#include "fpu_helper.h"
/* Data format min and max values */
#define DF_BITS(df) (1 << ((df) + 3))
diff --git a/target/mips/op_helper.c b/target/mips/op_helper.c
index 5aa97902e98..3386b8228e9 100644
--- a/target/mips/op_helper.c
+++ b/target/mips/op_helper.c
@@ -24,7 +24,7 @@
#include "exec/helper-proto.h"
#include "exec/exec-all.h"
#include "exec/memop.h"
-
+#include "fpu_helper.h"
/*****************************************************************************/
/* Exceptions processing helpers */
diff --git a/target/mips/translate.c b/target/mips/translate.c
index e813add99c5..f8f0f95509c 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -35,6 +35,7 @@
#include "exec/translator.h"
#include "exec/log.h"
#include "qemu/qemu-print.h"
+#include "fpu_helper.h"
#define MIPS_DEBUG_DISAS 0
diff --git a/target/mips/translate_init.c.inc b/target/mips/translate_init.c.inc
index 0ba3cf18ef7..044052fb77c 100644
--- a/target/mips/translate_init.c.inc
+++ b/target/mips/translate_init.c.inc
@@ -18,6 +18,8 @@
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
+#include "fpu_helper.h"
+
/* CPU / CPU family specific config register values. */
/* Have config1, uncached coherency */
--
2.26.2
More information about the libvir-list
mailing list