Re: [PATCH v3 02/15] perf/x86/amd: Add IBS OP_DATA2 DataSrc bit definitions

Namhyung Kim
2022-09-30T04:50:20Z

Hi Ravi,

On Wed, Sep 28, 2022 at 2:59 AM Ravi Bangoria <ravi.bangoria@amd.com> wrote:
>
> IBS_OP_DATA2 DataSrc provides detail about location of the data
> being accessed from by load ops. Define macros for legacy and
> extended DataSrc values.
>
> Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
> ---
> arch/x86/include/asm/amd-ibs.h | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/arch/x86/include/asm/amd-ibs.h b/arch/x86/include/asm/amd-ibs.h
> index f3eb098d63d4..cb2a5e113daa 100644
> --- a/arch/x86/include/asm/amd-ibs.h
> +++ b/arch/x86/include/asm/amd-ibs.h
> @@ -6,6 +6,22 @@
>
> #include <asm/msr-index.h>
>
> +/* IBS_OP_DATA2 DataSrc */
> +#define IBS_DATA_SRC_LOC_CACHE 2
> +#define IBS_DATA_SRC_DRAM 3
> +#define IBS_DATA_SRC_REM_CACHE 4
> +#define IBS_DATA_SRC_IO 7
> +
> +/* IBS_OP_DATA2 DataSrc Extension */
> +#define IBS_DATA_SRC_EXT_LOC_CACHE 1
> +#define IBS_DATA_SRC_EXT_NEAR_CCX_CACHE 2
> +#define IBS_DATA_SRC_EXT_DRAM 3
> +#define IBS_DATA_SRC_EXT_FAR_CCX_CACHE 5

Is 4 undefined intentionally?

Thanks,
Namhyung

> +#define IBS_DATA_SRC_EXT_PMEM 6
> +#define IBS_DATA_SRC_EXT_IO 7
> +#define IBS_DATA_SRC_EXT_EXT_MEM 8
> +#define IBS_DATA_SRC_EXT_PEER_AGENT_MEM 12
> +
> /*
> * IBS Hardware MSRs
> */
> --
> 2.31.1
>