Re: [PATCH 8/9] platform/x86: intel_pmc_core: Add LTR registers for Tiger Lake

Rajneesh Bhardwaj
2021-04-07T15:51:21Z

Please ignore the typo in my previous email and use this tag instead.

Acked-by: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com>

On Wed, Apr 7, 2021 at 11:48 AM Rajneesh Bhardwaj
<irenic.rajneesh@gmail.com> wrote:
>
> Acked-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
>
> On Wed, Mar 31, 2021 at 11:06 PM David E. Box
> <david.e.box@linux.intel.com> wrote:
> >
> > From: Gayatri Kammela <gayatri.kammela@intel.com>
> >
> > Just like Ice Lake, Tiger Lake uses Cannon Lake's LTR information
> > and supports a few additional registers. Hence add the LTR registers
> > specific to Tiger Lake to the cnp_ltr_show_map[].
> >
> > Also adjust the number of LTR IPs for Tiger Lake to the correct amount.
> >
> > Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com>
> > Signed-off-by: David E. Box <david.e.box@linux.intel.com>
> > ---
> > drivers/platform/x86/intel_pmc_core.c | 2 ++
> > drivers/platform/x86/intel_pmc_core.h | 4 +++-
> > 2 files changed, 5 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/platform/x86/intel_pmc_core.c b/drivers/platform/x86/intel_pmc_core.c
> > index 458c0056e7a1..9168062c927e 100644
> > --- a/drivers/platform/x86/intel_pmc_core.c
> > +++ b/drivers/platform/x86/intel_pmc_core.c
> > @@ -383,6 +383,8 @@ static const struct pmc_bit_map cnp_ltr_show_map[] = {
> > * a list of core SoCs using this.
> > */
> > {"WIGIG", ICL_PMC_LTR_WIGIG},
> > + {"THC0", TGL_PMC_LTR_THC0},
> > + {"THC1", TGL_PMC_LTR_THC1},
> > /* Below two cannot be used for LTR_IGNORE */
> > {"CURRENT_PLATFORM", CNP_PMC_LTR_CUR_PLT},
> > {"AGGREGATED_SYSTEM", CNP_PMC_LTR_CUR_ASLT},
> > diff --git a/drivers/platform/x86/intel_pmc_core.h b/drivers/platform/x86/intel_pmc_core.h
> > index f41f61aa7008..634130b589a2 100644
> > --- a/drivers/platform/x86/intel_pmc_core.h
> > +++ b/drivers/platform/x86/intel_pmc_core.h
> > @@ -192,8 +192,10 @@ enum ppfear_regs {
> > #define ETR3_CLEAR_LPM_EVENTS_BIT 28
> > #define LPM_STS_LATCH_MODE_BIT 31
> >
> > -#define TGL_NUM_IP_IGN_ALLOWED 22
> > #define TGL_PMC_SLP_S0_RES_COUNTER_STEP 0x7A
> > +#define TGL_PMC_LTR_THC0 0x1C04
> > +#define TGL_PMC_LTR_THC1 0x1C08
> > +#define TGL_NUM_IP_IGN_ALLOWED 23
> > #define TGL_PMC_LPM_RES_COUNTER_STEP_X2 61 /* 30.5us * 2 */
> >
> > /*
> > --
> > 2.25.1
> >
>
>
> --
> Thanks,
> Rajneesh

--
Thanks,
Rajneesh