diff mbox series

[05/12] drm/i915/xe3: Underrun recovery does not exist post Xe2

Message ID 20241018204941.73473-6-matthew.s.atwood@intel.com (mailing list archive)
State New
Headers show
Series drm/i915/xe3lpd: ptl display patches | expand

Commit Message

Matt Atwood Oct. 18, 2024, 8:49 p.m. UTC
From: Ravi Kumar Vodapalli <ravi.kumar.vodapalli@intel.com>

From platforms xe3 Underrun recovery does not exist

BSpec: 68849
Signed-off-by: Ravi Kumar Vodapalli <ravi.kumar.vodapalli@intel.com>
Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Matt Roper Oct. 18, 2024, 11:53 p.m. UTC | #1
On Fri, Oct 18, 2024 at 01:49:34PM -0700, Matt Atwood wrote:
> From: Ravi Kumar Vodapalli <ravi.kumar.vodapalli@intel.com>
> 
> From platforms xe3 Underrun recovery does not exist
> 
> BSpec: 68849
> Signed-off-by: Ravi Kumar Vodapalli <ravi.kumar.vodapalli@intel.com>
> Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 01466611eebe..dad415650b40 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -861,7 +861,7 @@ static void icl_set_pipe_chicken(const struct intel_crtc_state *crtc_state)
>  	 */
>  	if (IS_DG2(dev_priv))
>  		tmp &= ~UNDERRUN_RECOVERY_ENABLE_DG2;
> -	else if (DISPLAY_VER(dev_priv) >= 13)
> +	else if (IS_DISPLAY_VER(dev_priv, IP_VER(13, 0), IP_VER(20, 0)))

I don't know if we're ready to assume that there won't be any more Xe2
platforms showing up that have their own display ID's in the 20 range.
It might be best to just write this as

        else if (DISPLAY_VER(dev_priv) >= 13 &&
                 DISPLAY_VER(dev_priv) < 30)

so that we won't have to remember to change this is some 21.0 or 20.1 or
whatever shows up.


Matt

>  		tmp |= UNDERRUN_RECOVERY_DISABLE_ADLP;
>  
>  	/* Wa_14010547955:dg2 */
> -- 
> 2.45.0
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 01466611eebe..dad415650b40 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -861,7 +861,7 @@  static void icl_set_pipe_chicken(const struct intel_crtc_state *crtc_state)
 	 */
 	if (IS_DG2(dev_priv))
 		tmp &= ~UNDERRUN_RECOVERY_ENABLE_DG2;
-	else if (DISPLAY_VER(dev_priv) >= 13)
+	else if (IS_DISPLAY_VER(dev_priv, IP_VER(13, 0), IP_VER(20, 0)))
 		tmp |= UNDERRUN_RECOVERY_DISABLE_ADLP;
 
 	/* Wa_14010547955:dg2 */