| Message ID | 20240428214915.10339-10-philmd@linaro.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | exec: Rework around CPUState user fields | expand |
On 4/28/24 14:49, Philippe Mathieu-Daudé wrote: > cpu_loop_exit_requested() is specific to TCG, move it > to "exec/translate-all.h". > > Signed-off-by: Philippe Mathieu-Daudé<philmd@linaro.org> > --- > include/exec/exec-all.h | 17 ----------------- > include/exec/translate-all.h | 20 ++++++++++++++++++++ > target/arm/tcg/helper-a64.c | 1 + > target/s390x/tcg/mem_helper.c | 1 + > 4 files changed, 22 insertions(+), 17 deletions(-) I guess we could dither about whether this is the best place, but I guess it doesn't matter. Do you really need the CONFIG_TCG ifdef? Either way, Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
On 29/4/24 00:08, Richard Henderson wrote: > On 4/28/24 14:49, Philippe Mathieu-Daudé wrote: >> cpu_loop_exit_requested() is specific to TCG, move it >> to "exec/translate-all.h". >> >> Signed-off-by: Philippe Mathieu-Daudé<philmd@linaro.org> >> --- >> include/exec/exec-all.h | 17 ----------------- >> include/exec/translate-all.h | 20 ++++++++++++++++++++ >> target/arm/tcg/helper-a64.c | 1 + >> target/s390x/tcg/mem_helper.c | 1 + >> 4 files changed, 22 insertions(+), 17 deletions(-) > > I guess we could dither about whether this is the best place, but I > guess it doesn't matter. Do you really need the CONFIG_TCG ifdef? Right, actually 50 patches later it ends in "exec/cpu-loop.h", and "exec/translate-all.h" is removed. I need to check whether or not this patch is required at this stage, maybe not. Otherwise I'll directly introduce "exec/cpu-loop.h" I guess. > Either way, > Reviewed-by: Richard Henderson <richard.henderson@linaro.org> > > > r~
On 29/4/24 00:17, Philippe Mathieu-Daudé wrote: > On 29/4/24 00:08, Richard Henderson wrote: >> On 4/28/24 14:49, Philippe Mathieu-Daudé wrote: >>> cpu_loop_exit_requested() is specific to TCG, move it >>> to "exec/translate-all.h". >>> >>> Signed-off-by: Philippe Mathieu-Daudé<philmd@linaro.org> >>> --- >>> include/exec/exec-all.h | 17 ----------------- >>> include/exec/translate-all.h | 20 ++++++++++++++++++++ >>> target/arm/tcg/helper-a64.c | 1 + >>> target/s390x/tcg/mem_helper.c | 1 + >>> 4 files changed, 22 insertions(+), 17 deletions(-) >> >> I guess we could dither about whether this is the best place, but I >> guess it doesn't matter. Do you really need the CONFIG_TCG ifdef? > > Right, actually 50 patches later it ends in "exec/cpu-loop.h", > and "exec/translate-all.h" is removed. I need to check whether > or not this patch is required at this stage, maybe not. Otherwise > I'll directly introduce "exec/cpu-loop.h" I guess. So we need it at this point because cpu_loop_exit_requested() access neg.icount_decr, which we'll restrict in few commits (I'll mention that in the commit description). In "exec/translate-all.h" we don't need the CONFIG_TCG #ifdef, but we'll need it in "exec/cpu-loop.h". >> Either way, >> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> >> >> >> r~ >
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index 4c5e470581..2be7ef1809 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -29,23 +29,6 @@ #include "exec/translation-block.h" #include "qemu/clang-tsa.h" -/** - * cpu_loop_exit_requested: - * @cpu: The CPU state to be tested - * - * Indicate if somebody asked for a return of the CPU to the main loop - * (e.g., via cpu_exit() or cpu_interrupt()). - * - * This is helpful for architectures that support interruptible - * instructions. After writing back all state to registers/memory, this - * call can be used to check if it makes sense to return to the main loop - * or to continue executing the interruptible instruction. - */ -static inline bool cpu_loop_exit_requested(CPUState *cpu) -{ - return (int32_t)qatomic_read(&cpu->neg.icount_decr.u32) < 0; -} - #if !defined(CONFIG_USER_ONLY) && defined(CONFIG_TCG) /* cputlb.c */ /** diff --git a/include/exec/translate-all.h b/include/exec/translate-all.h index 85c9460c7c..dd26f70378 100644 --- a/include/exec/translate-all.h +++ b/include/exec/translate-all.h @@ -19,8 +19,28 @@ #ifndef TRANSLATE_ALL_H #define TRANSLATE_ALL_H +#include "qemu/atomic.h" #include "exec/exec-all.h" +#include "hw/core/cpu.h" +#ifdef CONFIG_TCG +/** + * cpu_loop_exit_requested: + * @cpu: The CPU state to be tested + * + * Indicate if somebody asked for a return of the CPU to the main loop + * (e.g., via cpu_exit() or cpu_interrupt()). + * + * This is helpful for architectures that support interruptible + * instructions. After writing back all state to registers/memory, this + * call can be used to check if it makes sense to return to the main loop + * or to continue executing the interruptible instruction. + */ +static inline bool cpu_loop_exit_requested(CPUState *cpu) +{ + return (int32_t)qatomic_read(&cpu->neg.icount_decr.u32) < 0; +} +#endif /* translate-all.c */ void tb_check_watchpoint(CPUState *cpu, uintptr_t retaddr); diff --git a/target/arm/tcg/helper-a64.c b/target/arm/tcg/helper-a64.c index 0ea8668ab4..f78430da0d 100644 --- a/target/arm/tcg/helper-a64.c +++ b/target/arm/tcg/helper-a64.c @@ -29,6 +29,7 @@ #include "internals.h" #include "qemu/crc32c.h" #include "exec/exec-all.h" +#include "exec/translate-all.h" #include "exec/cpu_ldst.h" #include "qemu/int128.h" #include "qemu/atomic128.h" diff --git a/target/s390x/tcg/mem_helper.c b/target/s390x/tcg/mem_helper.c index 6a308c5553..17fab5e8be 100644 --- a/target/s390x/tcg/mem_helper.c +++ b/target/s390x/tcg/mem_helper.c @@ -25,6 +25,7 @@ #include "tcg_s390x.h" #include "exec/helper-proto.h" #include "exec/exec-all.h" +#include "exec/translate-all.h" #include "exec/page-protection.h" #include "exec/cpu_ldst.h" #include "hw/core/tcg-cpu-ops.h"
cpu_loop_exit_requested() is specific to TCG, move it to "exec/translate-all.h". Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> --- include/exec/exec-all.h | 17 ----------------- include/exec/translate-all.h | 20 ++++++++++++++++++++ target/arm/tcg/helper-a64.c | 1 + target/s390x/tcg/mem_helper.c | 1 + 4 files changed, 22 insertions(+), 17 deletions(-)