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tcg: Have tcg_req_mo() use TCGCPUOps::guest_default_memory_order

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In order to use TCG with multiple targets, replace the
compile time use of TCG_GUEST_DEFAULT_MO by a runtime access
to TCGCPUOps::guest_default_memory_order via CPUState.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé
2025-04-23 15:07:32 -07:00
committed by Richard Henderson
parent eacd8c7cef
commit 0eca13c29a
1 changed files with 4 additions and 5 deletions
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accel/tcg/internal-target.h
+4 -5
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@@ -46,16 +46,15 @@ G_NORETURN void cpu_io_recompile(CPUState *cpu, uintptr_t retaddr);
/**
* tcg_req_mo:
* @guest_mo: Guest default memory order
* @type: TCGBar
*
* Filter @type to the barrier that is required for the guest
* memory ordering vs the host memory ordering. A non-zero
* result indicates that some barrier is required.
*
* This is a macro so that it's constant even without optimization.
*/
#define tcg_req_mo(type) \
((type) & TCG_GUEST_DEFAULT_MO & ~TCG_TARGET_DEFAULT_MO)
#define tcg_req_mo(guest_mo, type) \
((type) & guest_mo & ~TCG_TARGET_DEFAULT_MO)
/**
* cpu_req_mo:
@@ -67,7 +66,7 @@ G_NORETURN void cpu_io_recompile(CPUState *cpu, uintptr_t retaddr);
*/
#define cpu_req_mo(cpu, type) \
do { \
if (tcg_req_mo(type)) { \
if (tcg_req_mo(cpu->cc->tcg_ops->guest_default_memory_order, type)) { \
smp_mb(); \
} \
} while (0)