[Qemu-devel] Ping: [PATCH] Handle icount for powerpc tbl/tbu/decr load and store.

[Tristan Gingold]

Potential reviewers CC:

On Feb 8, 2011, at 10:59 AM, Tristan Gingold wrote:

> Handle option '-icount X' on powerpc targets.
> 
> Signed-off-by: Tristan Gingold <address@hidden>
> ---
> target-ppc/translate_init.c |   36 ++++++++++++++++++++++++++++++++++++
> 1 files changed, 36 insertions(+), 0 deletions(-)
> 
> diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
> index 907535e..7ef86ad 100644
> --- a/target-ppc/translate_init.c
> +++ b/target-ppc/translate_init.c
> @@ -154,12 +154,24 @@ static void spr_read_ureg (void *opaque, int gprn, int 
> sprn)
> #if !defined(CONFIG_USER_ONLY)
> static void spr_read_decr (void *opaque, int gprn, int sprn)
> {
> +    if (use_icount)
> +        gen_io_start();
>     gen_helper_load_decr(cpu_gpr[gprn]);
> +    if (use_icount) {
> +        gen_io_end();
> +     gen_stop_exception(opaque);
> +    }
> }
> 
> static void spr_write_decr (void *opaque, int sprn, int gprn)
> {
> +    if (use_icount)
> +        gen_io_start();
>     gen_helper_store_decr(cpu_gpr[gprn]);
> +    if (use_icount) {
> +        gen_io_end();
> +     gen_stop_exception(opaque);
> +    }
> }
> #endif
> 
> @@ -167,12 +179,24 @@ static void spr_write_decr (void *opaque, int sprn, int 
> gprn)
> /* Time base */
> static void spr_read_tbl (void *opaque, int gprn, int sprn)
> {
> +    if (use_icount)
> +        gen_io_start();
>     gen_helper_load_tbl(cpu_gpr[gprn]);
> +    if (use_icount) {
> +        gen_io_end();
> +     gen_stop_exception(opaque);
> +    }
> }
> 
> static void spr_read_tbu (void *opaque, int gprn, int sprn)
> {
> +    if (use_icount)
> +        gen_io_start();
>     gen_helper_load_tbu(cpu_gpr[gprn]);
> +    if (use_icount) {
> +        gen_io_end();
> +     gen_stop_exception(opaque);
> +    }
> }
> 
> __attribute__ (( unused ))
> @@ -190,12 +214,24 @@ static void spr_read_atbu (void *opaque, int gprn, int 
> sprn)
> #if !defined(CONFIG_USER_ONLY)
> static void spr_write_tbl (void *opaque, int sprn, int gprn)
> {
> +    if (use_icount)
> +        gen_io_start();
>     gen_helper_store_tbl(cpu_gpr[gprn]);
> +    if (use_icount) {
> +        gen_io_end();
> +     gen_stop_exception(opaque);
> +    }
> }
> 
> static void spr_write_tbu (void *opaque, int sprn, int gprn)
> {
> +    if (use_icount)
> +        gen_io_start();
>     gen_helper_store_tbu(cpu_gpr[gprn]);
> +    if (use_icount) {
> +        gen_io_end();
> +     gen_stop_exception(opaque);
> +    }
> }
> 
> __attribute__ (( unused ))
> -- 
> 1.7.3.GIT
> 
>