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[Qemu-devel] [PATCH 11/15] tcg: split cpu_set_mxcsr()/cpu_set_fpuc()
From: |
Yang Zhong |
Subject: |
[Qemu-devel] [PATCH 11/15] tcg: split cpu_set_mxcsr()/cpu_set_fpuc() |
Date: |
Wed, 21 Jun 2017 18:19:57 +0800 |
Split the cpu_set_mxcsr()/cpu_set_fpuc() with specific tcg code.
tcg_update_mxcsr()/tcg_set_fpuc() need be implemented in tcg-stub.c
file if tcg is disabled.
Signed-off-by: Yang Zhong <address@hidden>
---
accel/stubs/tcg-stub.c | 8 ++++++++
target/i386/cpu.h | 15 +++++++++++++--
target/i386/fpu_helper.c | 8 +++-----
3 files changed, 24 insertions(+), 7 deletions(-)
diff --git a/accel/stubs/tcg-stub.c b/accel/stubs/tcg-stub.c
index dafb1d0..91625a8 100644
--- a/accel/stubs/tcg-stub.c
+++ b/accel/stubs/tcg-stub.c
@@ -75,6 +75,14 @@ void dump_opcount_info(FILE *f, fprintf_function cpu_fprintf)
{
}
+void tcg_update_mxcsr(CPUX86State *env)
+{
+}
+
+void tcg_set_fpuc(CPUX86State *env)
+{
+}
+
void cpu_loop_exit(CPUState *cpu)
{
abort();
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 8b3b535..229b216 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1643,8 +1643,19 @@ static inline int32_t x86_get_a20_mask(CPUX86State *env)
}
/* fpu_helper.c */
-void cpu_set_mxcsr(CPUX86State *env, uint32_t val);
-void cpu_set_fpuc(CPUX86State *env, uint16_t val);
+void tcg_update_mxcsr(CPUX86State *env);
+void tcg_set_fpuc(CPUX86State *env);
+static inline void cpu_set_mxcsr(CPUX86State *env, uint32_t mxcsr)
+{
+ env->mxcsr = mxcsr;
+ tcg_update_mxcsr(env);
+}
+
+static inline void cpu_set_fpuc(CPUX86State *env, uint16_t fpuc)
+{
+ env->fpuc = fpuc;
+ tcg_set_fpuc(env);
+}
/* mem_helper.c */
void helper_lock_init(void);
diff --git a/target/i386/fpu_helper.c b/target/i386/fpu_helper.c
index 34fb5fc..a7550c9 100644
--- a/target/i386/fpu_helper.c
+++ b/target/i386/fpu_helper.c
@@ -1550,12 +1550,11 @@ void helper_xsetbv(CPUX86State *env, uint32_t ecx,
uint64_t mask)
#define SSE_RC_CHOP 0x6000
#define SSE_FZ 0x8000
-void cpu_set_mxcsr(CPUX86State *env, uint32_t mxcsr)
+void tcg_update_mxcsr(CPUX86State *env)
{
+ uint32_t mxcsr = env->mxcsr;
int rnd_type;
- env->mxcsr = mxcsr;
-
/* set rounding mode */
switch (mxcsr & SSE_RC_MASK) {
default:
@@ -1581,9 +1580,8 @@ void cpu_set_mxcsr(CPUX86State *env, uint32_t mxcsr)
set_flush_to_zero((mxcsr & SSE_FZ) ? 1 : 0, &env->fp_status);
}
-void cpu_set_fpuc(CPUX86State *env, uint16_t val)
+void tcg_set_fpuc(CPUX86State *env)
{
- env->fpuc = val;
update_fp_status(env);
}
--
1.9.1
- [Qemu-devel] [PATCH 05/15] tcg: move page_size_init() function, (continued)
- [Qemu-devel] [PATCH 06/15] kvmvapic: remove tcg related code, Yang Zhong, 2017/06/21
- [Qemu-devel] [PATCH 08/15] tcg: make cpu_get_fp80()/cpu_set_fp80() static, Yang Zhong, 2017/06/21
- [Qemu-devel] [PATCH 07/15] tcg: move cpu_sync_bndcs_hflags() function, Yang Zhong, 2017/06/21
- [Qemu-devel] [PATCH 10/15] tcg: move tb related lock functions, Yang Zhong, 2017/06/21
- [Qemu-devel] [PATCH 09/15] tcg: add the tcg-stub.c file into accel/stubs/, Yang Zhong, 2017/06/21
- [Qemu-devel] [PATCH 11/15] tcg: split cpu_set_mxcsr()/cpu_set_fpuc(),
Yang Zhong <=
- Re: [Qemu-devel] [PATCH 11/15] tcg: split cpu_set_mxcsr()/cpu_set_fpuc(), Richard Henderson, 2017/06/21
[Qemu-devel] [PATCH 12/15] tcg: remove inline definition of flush_icache_range(), Yang Zhong, 2017/06/21
[Qemu-devel] [PATCH 13/15] tcg: disable tcg in CPUX86State struct, Yang Zhong, 2017/06/21
[Qemu-devel] [PATCH 15/15] tcg: add the CONFIG_TCG into Makefiles, Yang Zhong, 2017/06/21