On Wed, 13 Jun 2018, "Nagaraju, Vathsala" <vathsala.nagar...@intel.com> wrote:
> On 6/12/2018 2:30 PM, Jani Nikula wrote:
>> On Tue, 12 Jun 2018, vathsala nagaraju <vathsala.nagar...@intel.com> wrote:
>>> From: Vathsala Nagaraju <vathsala.nagar...@intel.com>
>>>
>>> Adds new psrwake options defined in the below table.
>>> Platform PSR wake options vbt version
>>> KBL/CFL/WHL All
>>> SKL All PV releases (Check for 203+ might help but cannot be
>>> foolproof)
>>> BXT Uses old interpretation.
>>> CNL/ICL+ All
>>> GLK All
>>>
>>> For SKL, we will continue to use older interpretation for the above reason.
>>>
>>> Cc: Jani Nikula <jani.nik...@intel.com>
>>> Cc: Rodrigo Vivi <rodrigo.v...@intel.com>
>>> Cc: Puthikorn Voravootivat <put...@chromium.org>
>>> Cc: Dhinakaran Pandiyan <dhinakaran.pandi...@intel.com>
>>>
>>> Signed-off-by: Vathsala Nagaraju <vathsala.nagar...@intel.com>
>>> ---
>>> drivers/gpu/drm/i915/intel_bios.c | 3 ++-
>>> 1 file changed, 2 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/gpu/drm/i915/intel_bios.c
>>> b/drivers/gpu/drm/i915/intel_bios.c
>>> index 465dff4..010ff68 100644
>>> --- a/drivers/gpu/drm/i915/intel_bios.c
>>> +++ b/drivers/gpu/drm/i915/intel_bios.c
>>> @@ -710,7 +710,8 @@ static int intel_bios_ssc_frequency(struct
>>> drm_i915_private *dev_priv,
>>> * New psr options 0=500us, 1=100us, 2=2500us, 3=0us
>>> * Old decimal value is wake up time in multiples of 100 us.
>>> */
>>> - if (bdb->version >= 209 && IS_GEN9_BC(dev_priv)) {
>>> + if ((INTEL_GEN(dev_priv) >= 10) ||
>>> + (IS_GEN9_BC(dev_priv) && !IS_SKYLAKE(dev_priv))) {
>> Please keep the version check.
> Sure. For SKL , shall we use older interpretation for all bdb version as
> vbt team cannot confirm bdb version for SKL?
I guess.
BR,
Jani.
>
>> Please tell anyone who asks, and also those who don't, that *all* of the
>> VBT changes should be based on the *version*, and *none* of them should
>> be based on the *platform*.
>>
>> BR,
>> Jani.
>>
>>> switch (psr_table->tp1_wakeup_time) {
>>> case 0:
>>> dev_priv->vbt.psr.tp1_wakeup_time_us = 500;
>
--
Jani Nikula, Intel Open Source Graphics Center
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