From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, Joelle van Dyne <j@getutm.app>
Subject: [PULL 10/47] tcg: Move tcg epilogue pointer out of TCGContext
Date: Thu, 7 Jan 2021 10:14:11 -1000 [thread overview]
Message-ID: <20210107201448.1152301-11-richard.henderson@linaro.org> (raw)
In-Reply-To: <20210107201448.1152301-1-richard.henderson@linaro.org>
This value is constant across all thread-local copies of TCGContext,
so we might as well move it out of thread-local storage.
Reviewed-by: Joelle van Dyne <j@getutm.app>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
include/tcg/tcg.h | 2 +-
accel/tcg/tcg-runtime.c | 2 +-
tcg/tcg.c | 3 ++-
tcg/aarch64/tcg-target.c.inc | 4 ++--
tcg/arm/tcg-target.c.inc | 2 +-
tcg/i386/tcg-target.c.inc | 4 ++--
tcg/mips/tcg-target.c.inc | 2 +-
tcg/ppc/tcg-target.c.inc | 2 +-
tcg/riscv/tcg-target.c.inc | 4 ++--
tcg/s390/tcg-target.c.inc | 4 ++--
tcg/sparc/tcg-target.c.inc | 2 +-
11 files changed, 16 insertions(+), 15 deletions(-)
diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h
index 9cc412f90c..bb1e97b13b 100644
--- a/include/tcg/tcg.h
+++ b/include/tcg/tcg.h
@@ -621,7 +621,6 @@ struct TCGContext {
here, because there's too much arithmetic throughout that relies
on addition and subtraction working on bytes. Rely on the GCC
extension that allows arithmetic on void*. */
- void *code_gen_epilogue;
void *code_gen_buffer;
size_t code_gen_buffer_size;
void *code_gen_ptr;
@@ -678,6 +677,7 @@ struct TCGContext {
extern TCGContext tcg_init_ctx;
extern __thread TCGContext *tcg_ctx;
+extern void *tcg_code_gen_epilogue;
extern TCGv_env cpu_env;
static inline size_t temp_idx(TCGTemp *ts)
diff --git a/accel/tcg/tcg-runtime.c b/accel/tcg/tcg-runtime.c
index 446465a09a..f85dfefeab 100644
--- a/accel/tcg/tcg-runtime.c
+++ b/accel/tcg/tcg-runtime.c
@@ -154,7 +154,7 @@ void *HELPER(lookup_tb_ptr)(CPUArchState *env)
tb = tb_lookup__cpu_state(cpu, &pc, &cs_base, &flags, curr_cflags());
if (tb == NULL) {
- return tcg_ctx->code_gen_epilogue;
+ return tcg_code_gen_epilogue;
}
qemu_log_mask_and_addr(CPU_LOG_EXEC, pc,
"Chain %d: %p ["
diff --git a/tcg/tcg.c b/tcg/tcg.c
index b686cc9ba8..12f598cc18 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -161,6 +161,7 @@ static int tcg_out_ldst_finalize(TCGContext *s);
static TCGContext **tcg_ctxs;
static unsigned int n_tcg_ctxs;
TCGv_env cpu_env = 0;
+void *tcg_code_gen_epilogue;
#ifndef CONFIG_TCG_INTERPRETER
tcg_prologue_fn *tcg_qemu_tb_exec;
@@ -1133,7 +1134,7 @@ void tcg_prologue_init(TCGContext *s)
/* Assert that goto_ptr is implemented completely. */
if (TCG_TARGET_HAS_goto_ptr) {
- tcg_debug_assert(s->code_gen_epilogue != NULL);
+ tcg_debug_assert(tcg_code_gen_epilogue != NULL);
}
}
diff --git a/tcg/aarch64/tcg-target.c.inc b/tcg/aarch64/tcg-target.c.inc
index 83af3108a4..76f8ae48ad 100644
--- a/tcg/aarch64/tcg-target.c.inc
+++ b/tcg/aarch64/tcg-target.c.inc
@@ -1873,7 +1873,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_exit_tb:
/* Reuse the zeroing that exists for goto_ptr. */
if (a0 == 0) {
- tcg_out_goto_long(s, s->code_gen_epilogue);
+ tcg_out_goto_long(s, tcg_code_gen_epilogue);
} else {
tcg_out_movi(s, TCG_TYPE_I64, TCG_REG_X0, a0);
tcg_out_goto_long(s, tb_ret_addr);
@@ -2894,7 +2894,7 @@ static void tcg_target_qemu_prologue(TCGContext *s)
* Return path for goto_ptr. Set return value to 0, a-la exit_tb,
* and fall through to the rest of the epilogue.
*/
- s->code_gen_epilogue = s->code_ptr;
+ tcg_code_gen_epilogue = s->code_ptr;
tcg_out_movi(s, TCG_TYPE_REG, TCG_REG_X0, 0);
/* TB epilogue */
diff --git a/tcg/arm/tcg-target.c.inc b/tcg/arm/tcg-target.c.inc
index 62c37a954b..1e32bf42b8 100644
--- a/tcg/arm/tcg-target.c.inc
+++ b/tcg/arm/tcg-target.c.inc
@@ -2297,7 +2297,7 @@ static void tcg_target_qemu_prologue(TCGContext *s)
* Return path for goto_ptr. Set return value to 0, a-la exit_tb,
* and fall through to the rest of the epilogue.
*/
- s->code_gen_epilogue = s->code_ptr;
+ tcg_code_gen_epilogue = s->code_ptr;
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R0, 0);
tcg_out_epilogue(s);
}
diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc
index f8e9a24e3b..ee3a27069d 100644
--- a/tcg/i386/tcg-target.c.inc
+++ b/tcg/i386/tcg-target.c.inc
@@ -2240,7 +2240,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_exit_tb:
/* Reuse the zeroing that exists for goto_ptr. */
if (a0 == 0) {
- tcg_out_jmp(s, s->code_gen_epilogue);
+ tcg_out_jmp(s, tcg_code_gen_epilogue);
} else {
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_EAX, a0);
tcg_out_jmp(s, tb_ret_addr);
@@ -3803,7 +3803,7 @@ static void tcg_target_qemu_prologue(TCGContext *s)
* Return path for goto_ptr. Set return value to 0, a-la exit_tb,
* and fall through to the rest of the epilogue.
*/
- s->code_gen_epilogue = s->code_ptr;
+ tcg_code_gen_epilogue = s->code_ptr;
tcg_out_movi(s, TCG_TYPE_REG, TCG_REG_EAX, 0);
/* TB epilogue */
diff --git a/tcg/mips/tcg-target.c.inc b/tcg/mips/tcg-target.c.inc
index c255ecb444..f641105f9a 100644
--- a/tcg/mips/tcg-target.c.inc
+++ b/tcg/mips/tcg-target.c.inc
@@ -2483,7 +2483,7 @@ static void tcg_target_qemu_prologue(TCGContext *s)
* Return path for goto_ptr. Set return value to 0, a-la exit_tb,
* and fall through to the rest of the epilogue.
*/
- s->code_gen_epilogue = s->code_ptr;
+ tcg_code_gen_epilogue = s->code_ptr;
tcg_out_mov(s, TCG_TYPE_REG, TCG_REG_V0, TCG_REG_ZERO);
/* TB epilogue */
diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc
index b756281042..15d5c78798 100644
--- a/tcg/ppc/tcg-target.c.inc
+++ b/tcg/ppc/tcg-target.c.inc
@@ -2341,7 +2341,7 @@ static void tcg_target_qemu_prologue(TCGContext *s)
tcg_out32(s, BCCTR | BO_ALWAYS);
/* Epilogue */
- s->code_gen_epilogue = tb_ret_addr = s->code_ptr;
+ tcg_code_gen_epilogue = tb_ret_addr = s->code_ptr;
tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_R0, TCG_REG_R1, FRAME_SIZE+LR_OFFSET);
for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); ++i) {
diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc
index 4089e29cd9..25df85b33a 100644
--- a/tcg/riscv/tcg-target.c.inc
+++ b/tcg/riscv/tcg-target.c.inc
@@ -1288,7 +1288,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_exit_tb:
/* Reuse the zeroing that exists for goto_ptr. */
if (a0 == 0) {
- tcg_out_call_int(s, s->code_gen_epilogue, true);
+ tcg_out_call_int(s, tcg_code_gen_epilogue, true);
} else {
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_A0, a0);
tcg_out_call_int(s, tb_ret_addr, true);
@@ -1822,7 +1822,7 @@ static void tcg_target_qemu_prologue(TCGContext *s)
tcg_out_opc_imm(s, OPC_JALR, TCG_REG_ZERO, tcg_target_call_iarg_regs[1], 0);
/* Return path for goto_ptr. Set return value to 0 */
- s->code_gen_epilogue = s->code_ptr;
+ tcg_code_gen_epilogue = s->code_ptr;
tcg_out_mov(s, TCG_TYPE_REG, TCG_REG_A0, TCG_REG_ZERO);
/* TB epilogue */
diff --git a/tcg/s390/tcg-target.c.inc b/tcg/s390/tcg-target.c.inc
index c5e096449b..ac99ccea73 100644
--- a/tcg/s390/tcg-target.c.inc
+++ b/tcg/s390/tcg-target.c.inc
@@ -1756,7 +1756,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc,
/* Reuse the zeroing that exists for goto_ptr. */
a0 = args[0];
if (a0 == 0) {
- tgen_gotoi(s, S390_CC_ALWAYS, s->code_gen_epilogue);
+ tgen_gotoi(s, S390_CC_ALWAYS, tcg_code_gen_epilogue);
} else {
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R2, a0);
tgen_gotoi(s, S390_CC_ALWAYS, tb_ret_addr);
@@ -2561,7 +2561,7 @@ static void tcg_target_qemu_prologue(TCGContext *s)
* Return path for goto_ptr. Set return value to 0, a-la exit_tb,
* and fall through to the rest of the epilogue.
*/
- s->code_gen_epilogue = s->code_ptr;
+ tcg_code_gen_epilogue = s->code_ptr;
tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R2, 0);
/* TB epilogue */
diff --git a/tcg/sparc/tcg-target.c.inc b/tcg/sparc/tcg-target.c.inc
index 6e2d755f6a..5b3bc91b05 100644
--- a/tcg/sparc/tcg-target.c.inc
+++ b/tcg/sparc/tcg-target.c.inc
@@ -1038,7 +1038,7 @@ static void tcg_target_qemu_prologue(TCGContext *s)
tcg_out_nop(s);
/* Epilogue for goto_ptr. */
- s->code_gen_epilogue = s->code_ptr;
+ tcg_code_gen_epilogue = s->code_ptr;
tcg_out_arithi(s, TCG_REG_G0, TCG_REG_I7, 8, RETURN);
/* delay slot */
tcg_out_movi_imm13(s, TCG_REG_O0, 0);
--
2.25.1
next prev parent reply other threads:[~2021-01-07 20:28 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-07 20:14 [PULL 00/47] tcg patch queue Richard Henderson
2021-01-07 20:14 ` [PULL 01/47] linux-user: Conditionalize TUNSETVNETLE Richard Henderson
2021-01-07 20:14 ` [PULL 02/47] tcg/i386: Adjust TCG_TARGET_HAS_MEMORY_BSWAP Richard Henderson
2021-01-07 20:14 ` [PULL 03/47] tcg: Introduce INDEX_op_qemu_st8_i32 Richard Henderson
2021-01-07 20:14 ` [PULL 04/47] util/oslib-win32: Use _aligned_malloc for qemu_try_memalign Richard Henderson
2021-01-10 23:18 ` Volker Rümelin
2021-01-11 3:10 ` 罗勇刚(Yonggang Luo)
2021-01-07 20:14 ` [PULL 05/47] util/oslib: Assert qemu_try_memalign() alignment is a power of 2 Richard Henderson
2021-01-07 20:14 ` [PULL 06/47] tcg: Do not flush icache for interpreter Richard Henderson
2021-01-07 20:14 ` [PULL 07/47] util: Enhance flush_icache_range with separate data pointer Richard Henderson
2021-01-07 20:14 ` [PULL 08/47] util: Specialize flush_idcache_range for aarch64 Richard Henderson
2021-01-07 20:14 ` [PULL 09/47] tcg: Move tcg prologue pointer out of TCGContext Richard Henderson
2021-01-07 20:14 ` Richard Henderson [this message]
2021-01-07 20:14 ` [PULL 11/47] tcg: Add in_code_gen_buffer Richard Henderson
2021-01-07 20:14 ` [PULL 12/47] tcg: Introduce tcg_splitwx_to_{rx,rw} Richard Henderson
2021-01-07 20:14 ` [PULL 13/47] tcg: Adjust TCGLabel for const Richard Henderson
2021-01-07 20:14 ` [PULL 14/47] tcg: Adjust tcg_out_call " Richard Henderson
2021-01-07 20:14 ` [PULL 15/47] tcg: Adjust tcg_out_label " Richard Henderson
2021-01-07 20:14 ` [PULL 16/47] tcg: Adjust tcg_register_jit " Richard Henderson
2021-01-07 20:14 ` [PULL 17/47] tcg: Adjust tb_target_set_jmp_target for split-wx Richard Henderson
2021-01-07 20:14 ` [PULL 18/47] tcg: Make DisasContextBase.tb const Richard Henderson
2021-01-07 20:14 ` [PULL 19/47] tcg: Make tb arg to synchronize_from_tb const Richard Henderson
2021-01-07 20:14 ` [PULL 20/47] tcg: Use Error with alloc_code_gen_buffer Richard Henderson
2021-01-07 20:14 ` [PULL 21/47] tcg: Add --accel tcg,split-wx property Richard Henderson
2021-01-07 20:14 ` [PULL 22/47] accel/tcg: Support split-wx for linux with memfd Richard Henderson
2021-01-07 20:14 ` [PULL 23/47] accel/tcg: Support split-wx for darwin/iOS with vm_remap Richard Henderson
2021-01-07 20:14 ` [PULL 24/47] tcg: Return the TB pointer from the rx region from exit_tb Richard Henderson
2021-01-07 20:14 ` [PULL 25/47] tcg/i386: Support split-wx code generation Richard Henderson
2021-01-07 20:14 ` [PULL 26/47] tcg/aarch64: Use B not BL for tcg_out_goto_long Richard Henderson
2021-01-07 20:14 ` [PULL 27/47] tcg/aarch64: Support split-wx code generation Richard Henderson
2021-01-07 20:14 ` [PULL 28/47] disas: Push const down through host disassembly Richard Henderson
2021-01-07 20:14 ` [PULL 29/47] tcg/tci: Push const down through bytecode reading Richard Henderson
2021-01-07 20:14 ` [PULL 30/47] tcg: Introduce tcg_tbrel_diff Richard Henderson
2021-01-07 20:14 ` [PULL 31/47] tcg/ppc: Use tcg_tbrel_diff Richard Henderson
2021-01-07 20:14 ` [PULL 32/47] tcg/ppc: Use tcg_out_mem_long to reset TCG_REG_TB Richard Henderson
2021-01-07 20:14 ` [PULL 33/47] tcg/ppc: Support split-wx code generation Richard Henderson
2021-01-07 20:14 ` [PULL 34/47] tcg/sparc: Use tcg_tbrel_diff Richard Henderson
2021-01-07 20:14 ` [PULL 35/47] tcg/sparc: Support split-wx code generation Richard Henderson
2021-01-07 20:14 ` [PULL 36/47] tcg/s390: Use tcg_tbrel_diff Richard Henderson
2021-01-07 20:14 ` [PULL 37/47] tcg/s390: Support split-wx code generation Richard Henderson
2021-01-07 20:14 ` [PULL 38/47] tcg/riscv: Fix branch range checks Richard Henderson
2021-01-07 20:14 ` [PULL 39/47] tcg/riscv: Remove branch-over-branch fallback Richard Henderson
2021-01-07 20:14 ` [PULL 40/47] tcg/riscv: Support split-wx code generation Richard Henderson
2021-01-07 20:14 ` [PULL 41/47] accel/tcg: Add mips support to alloc_code_gen_buffer_splitwx_memfd Richard Henderson
2021-01-07 20:14 ` [PULL 42/47] tcg/mips: Do not assert on relocation overflow Richard Henderson
2021-01-07 20:14 ` [PULL 43/47] tcg/mips: Support split-wx code generation Richard Henderson
2021-01-07 20:14 ` [PULL 44/47] tcg/arm: " Richard Henderson
2021-01-07 20:14 ` [PULL 45/47] tcg: Remove TCG_TARGET_SUPPORT_MIRROR Richard Henderson
2021-01-07 20:14 ` [PULL 46/47] tcg: Constify tcg_code_gen_epilogue Richard Henderson
2021-01-07 20:14 ` [PULL 47/47] tcg: Constify TCGLabelQemuLdst.raddr Richard Henderson
2021-01-07 21:03 ` [PULL 00/47] tcg patch queue no-reply
2021-01-08 10:28 ` Peter Maydell
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