[PATCH] drm/i915/cx0: split out mtl_get_cx0_buf_trans() to c10 and c20 variants

[Jani Nikula]

On Wed, 04 Dec 2024, "Kahola, Mika" <mika.kahola at intel.com> wrote:
>> -----Original Message-----
>> From: Nikula, Jani <jani.nikula at intel.com>
>> Sent: Friday, 29 November 2024 13.42
>> To: intel-gfx at lists.freedesktop.org; intel-xe at lists.freedesktop.org
>> Cc: Nikula, Jani <jani.nikula at intel.com>; Kahola, Mika <mika.kahola at intel.com>
>> Subject: [PATCH] drm/i915/cx0: split out mtl_get_cx0_buf_trans() to c10 and c20
>> variants
>>
>> The PHY is either c10 or c20, there's no need to check at runtime and complicate
>> the conditions in mtl_get_cx0_buf_trans().
>>
>> While at it, replace the direct port clock check with intel_dp_is_uhbr().
>>
>> Cc: Mika Kahola <mika.kahola at intel.com>
>
> The change is reasonable and solid.
>
> Reviewed-by: Mika Kahola <mika.kahola at intel.com>

Thanks, pushed to drm-intel-next.

BR,
Jani.

>
>> Signed-off-by: Jani Nikula <jani.nikula at intel.com>
>> ---
>>  .../drm/i915/display/intel_ddi_buf_trans.c    | 23 +++++++++++++------
>>  1 file changed, 16 insertions(+), 7 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
>> b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
>> index 4d21ce734343..9389b295036e 100644
>> --- a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
>> +++ b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
>> @@ -1687,18 +1687,24 @@ dg2_get_snps_buf_trans(struct intel_encoder
>> *encoder,  }
>>
>>  static const struct intel_ddi_buf_trans * -mtl_get_cx0_buf_trans(struct
>> intel_encoder *encoder,
>> +mtl_get_c10_buf_trans(struct intel_encoder *encoder,
>>                     const struct intel_crtc_state *crtc_state,
>>                     int *n_entries)
>>  {
>> -     if (intel_crtc_has_dp_encoder(crtc_state) && crtc_state->port_clock >=
>> 1000000)
>> +     return intel_get_buf_trans(&mtl_c10_trans_dp14, n_entries); }
>> +
>> +static const struct intel_ddi_buf_trans * mtl_get_c20_buf_trans(struct
>> +intel_encoder *encoder,
>> +                   const struct intel_crtc_state *crtc_state,
>> +                   int *n_entries)
>> +{
>> +     if (intel_crtc_has_dp_encoder(crtc_state) &&
>> +intel_dp_is_uhbr(crtc_state))
>>               return intel_get_buf_trans(&mtl_c20_trans_uhbr, n_entries);
>> -     else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI) &&
>> !(intel_encoder_is_c10phy(encoder)))
>> +     else if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
>>               return intel_get_buf_trans(&mtl_c20_trans_hdmi, n_entries);
>> -     else if (!intel_encoder_is_c10phy(encoder))
>> -             return intel_get_buf_trans(&mtl_c20_trans_dp14, n_entries);
>>       else
>> -             return intel_get_buf_trans(&mtl_c10_trans_dp14, n_entries);
>> +             return intel_get_buf_trans(&mtl_c20_trans_dp14, n_entries);
>>  }
>>
>>  void intel_ddi_buf_trans_init(struct intel_encoder *encoder) @@ -1706,7
>> +1712,10 @@ void intel_ddi_buf_trans_init(struct intel_encoder *encoder)
>>       struct drm_i915_private *i915 = to_i915(encoder->base.dev);
>>
>>       if (DISPLAY_VER(i915) >= 14) {
>> -             encoder->get_buf_trans = mtl_get_cx0_buf_trans;
>> +             if (intel_encoder_is_c10phy(encoder))
>> +                     encoder->get_buf_trans = mtl_get_c10_buf_trans;
>> +             else
>> +                     encoder->get_buf_trans = mtl_get_c20_buf_trans;
>>       } else if (IS_DG2(i915)) {
>>               encoder->get_buf_trans = dg2_get_snps_buf_trans;
>>       } else if (IS_ALDERLAKE_P(i915)) {
>> --
>> 2.39.5
>

-- 
Jani Nikula, Intel