Re: [Intel-gfx] [PATCH 02/10] drm/i915/psr: program vsc header for psr2

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



patch merged to dinq. thanks for patch and review.

On Wed, Jan 4, 2017 at 3:48 PM Jim Bride <jim.bride@xxxxxxxxxxxxxxx> wrote:
On Mon, Jan 02, 2017 at 05:00:55PM +0530, vathsala nagaraju wrote:
> Function hsw_psr_setup handles vsc header setup for psr1 and
> skl_psr_setup_vsc handles vsc header setup for psr2.
>
> Setup VSC header in function skl_psr_setup_vsc for psr2 support,
> as per edp 1.4 spec, table 6-11:VSC SDP HEADER Extension for psr2
> operation.
>
> v2: (Jani)
> - Initialize variables to 0
> - intel_dp_get_y_cord_status and intel_dp_get_y_cord_status made static
> - Correct indentation for continuation lines
> - Change DP_PSR_Y_COORDINATE to  DP_PSR2_SU_Y_COORDINATE_REQUIRED
> - Change DPRX_FEATURE_ENUMERATION_LIST to DP_DPRX_*
> - Change VSC_SDP_EXT_FOR_COLORIMETRY_SUPPORTED to DP_VSC_*
>
> Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> Cc: Jim Bride <jim.bride@xxxxxxxxxxxxxxx>
> Signed-off-by: Vathsala Nagaraju <vathsala.nagaraju@xxxxxxxxx>
> Signed-off-by: Patil Deepti <deepti.patil@xxxxxxxxx>

Reviewed-by: Jim Bride <jim.bride@xxxxxxxxxxxxxxx>

> ---
>  drivers/gpu/drm/i915/i915_drv.h  |  2 ++
>  drivers/gpu/drm/i915/intel_dp.c  | 26 ++++++++++++++++++++++++++
>  drivers/gpu/drm/i915/intel_psr.c | 17 +++++++++++++++--
>  3 files changed, 43 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 22d3f61..36dc835 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1164,6 +1164,8 @@ struct i915_psr {
>       bool psr2_support;
>       bool aux_frame_sync;
>       bool link_standby;
> +     bool y_cord_support;
> +     bool colorimetry_support;
>  };
>
>  enum intel_pch {
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index fb12896..da577c9 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -3042,6 +3042,24 @@ static void chv_dp_post_pll_disable(struct intel_encoder *encoder,
>                               DP_LINK_STATUS_SIZE) == DP_LINK_STATUS_SIZE;
>  }
>
> +static bool intel_dp_get_y_cord_status(struct intel_dp *intel_dp)
> +{
> +     uint8_t psr_caps = 0;
> +
> +     drm_dp_dpcd_readb(&intel_dp->aux, DP_PSR_CAPS, &psr_caps);
> +     return psr_caps & DP_PSR2_SU_Y_COORDINATE_REQUIRED;
> +}
> +
> +static bool intel_dp_get_colorimetry_status(struct intel_dp *intel_dp)
> +{
> +     uint8_t dprx = 0;
> +
> +     drm_dp_dpcd_readb(&intel_dp->aux,
> +                     DP_DPRX_FEATURE_ENUMERATION_LIST,
> +                     &dprx);
> +     return dprx & DP_VSC_SDP_EXT_FOR_COLORIMETRY_SUPPORTED;
> +}
> +
>  /* These are source-specific values. */
>  uint8_t
>  intel_dp_voltage_max(struct intel_dp *intel_dp)
> @@ -3620,6 +3638,14 @@ void intel_dp_set_idle_link_train(struct intel_dp *intel_dp)
>               dev_priv->psr.psr2_support = dev_priv->psr.aux_frame_sync;
>               DRM_DEBUG_KMS("PSR2 %s on sink",
>                             dev_priv->psr.psr2_support ? "supported" : "not supported");
> +
> +             if (dev_priv->psr.psr2_support) {
> +                     dev_priv->psr.y_cord_support =
> +                             intel_dp_get_y_cord_status(intel_dp);
> +                     dev_priv->psr.colorimetry_support =
> +                             intel_dp_get_colorimetry_status(intel_dp);
> +             }
> +
>       }
>
>       /* Read the eDP Display control capabilities registers */
> diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
> index 6aca8ff..c3aa649 100644
> --- a/drivers/gpu/drm/i915/intel_psr.c
> +++ b/drivers/gpu/drm/i915/intel_psr.c
> @@ -122,13 +122,26 @@ static void vlv_psr_setup_vsc(struct intel_dp *intel_dp)
>  static void skl_psr_setup_su_vsc(struct intel_dp *intel_dp)
>  {
>       struct edp_vsc_psr psr_vsc;
> +     struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
> +     struct drm_device *dev = intel_dig_port->base.base.dev;
> +     struct drm_i915_private *dev_priv = to_i915(dev);
>
>       /* Prepare VSC Header for SU as per EDP 1.4 spec, Table 6.11 */
>       memset(&psr_vsc, 0, sizeof(psr_vsc));
>       psr_vsc.sdp_header.HB0 = 0;
>       psr_vsc.sdp_header.HB1 = 0x7;
> -     psr_vsc.sdp_header.HB2 = 0x3;
> -     psr_vsc.sdp_header.HB3 = 0xb;
> +     if (dev_priv->psr.colorimetry_support &&
> +             dev_priv->psr.y_cord_support) {
> +             psr_vsc.sdp_header.HB2 = 0x5;
> +             psr_vsc.sdp_header.HB3 = 0x13;
> +     } else if (dev_priv->psr.y_cord_support) {
> +             psr_vsc.sdp_header.HB2 = 0x4;
> +             psr_vsc.sdp_header.HB3 = 0xe;
> +     } else {
> +             psr_vsc.sdp_header.HB2 = 0x3;
> +             psr_vsc.sdp_header.HB3 = 0xc;
> +     }
> +
>       intel_psr_write_vsc(intel_dp, &psr_vsc);
>  }
>
> --
> 1.9.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux