lkml.org 
[lkml]   [2020]   [Mar]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] perf/x86/intel: Add more available bits for OFFCORE_RESPONSE of Intel Tremont
From
Date
Hi Peter,

Could you please take a look and apply the patch?

Thanks,
Kan

On 3/8/2020 8:55 AM, kan.liang@linux.intel.com wrote:
> From: Kan Liang <kan.liang@linux.intel.com>
>
> The mask in the extra_regs for Intel Tremont need to be extended to
> allow more defined bits.
>
> "Outstanding Requests" (bit 63) is only available on MSR_OFFCORE_RSP0;
>
> Fixes: 6daeb8737f8a ("perf/x86/intel: Add Tremont core PMU support")
> Reported-by: Stephane Eranian <eranian@google.com>
> Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
> Cc: stable@vger.kernel.org
> ---
> arch/x86/events/intel/core.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
> index 3be51aa06e67..ba08ad1f560b 100644
> --- a/arch/x86/events/intel/core.c
> +++ b/arch/x86/events/intel/core.c
> @@ -1892,8 +1892,8 @@ static __initconst const u64 tnt_hw_cache_extra_regs
>
> static struct extra_reg intel_tnt_extra_regs[] __read_mostly = {
> /* must define OFFCORE_RSP_X first, see intel_fixup_er() */
> - INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0xffffff9fffull, RSP_0),
> - INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0xffffff9fffull, RSP_1),
> + INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x800ff0ffffff9fffull, RSP_0),
> + INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0xff0ffffff9fffull, RSP_1),
> EVENT_EXTRA_END
> };
>
>

\
 
 \ /
  Last update: 2020-03-30 16:55    [W:0.072 / U:1.864 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site