Re: [Intel-gfx] [PATCH v3] drm/i915/lnl: Remove watchdog timers for PSR

2023-10-13 Thread Hogander, Jouni
On Tue, 2023-10-10 at 11:47 +, Hogander, Jouni wrote:
> On Tue, 2023-10-10 at 12:52 +0300, Mika Kahola wrote:
> > Watchdorg timers for Lunarlake HW were removed for PSR/PSR2
> > The patch removes the use of these timers from the driver code.
> > 
> > BSpec: 69895
> > 
> > v2: Reword commit message (Ville)
> >     Drop HPD mask from LNL (Ville)
> >     Revise masking logic (Jouni)
> > v3: Revise commit message (Ville)
> >     Revert HPD mask removal as irrelevant for this patch (Ville)
> > 
> > Signed-off-by: Mika Kahola 
> 
> Consider fixing typo above (watchdorg) before merging:
> 
> Reviewed-by: Jouni Högander 

Thank you Mika for the patch. This is now merged with typo mentioned
above fixed.

BR,

Jouni Högander

> 
> > ---
> >  drivers/gpu/drm/i915/display/intel_psr.c | 10 +++---
> >  1 file changed, 7 insertions(+), 3 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/display/intel_psr.c
> > b/drivers/gpu/drm/i915/display/intel_psr.c
> > index bb65881e87cc..4f1f31fc9529 100644
> > --- a/drivers/gpu/drm/i915/display/intel_psr.c
> > +++ b/drivers/gpu/drm/i915/display/intel_psr.c
> > @@ -676,7 +676,9 @@ static void hsw_activate_psr1(struct intel_dp
> > *intel_dp)
> >  
> > val |=
> > EDP_PSR_IDLE_FRAMES(psr_compute_idle_frames(intel_dp));
> >  
> > -   val |= EDP_PSR_MAX_SLEEP_TIME(max_sleep_time);
> > +   if (DISPLAY_VER(dev_priv) < 20)
> > +   val |= EDP_PSR_MAX_SLEEP_TIME(max_sleep_time);
> > +
> > if (IS_HASWELL(dev_priv))
> > val |= EDP_PSR_MIN_LINK_ENTRY_TIME_8_LINES;
> >  
> > @@ -1400,8 +1402,10 @@ static void intel_psr_enable_source(struct
> > intel_dp *intel_dp,
> >  */
> > mask = EDP_PSR_DEBUG_MASK_MEMUP |
> >    EDP_PSR_DEBUG_MASK_HPD |
> > -  EDP_PSR_DEBUG_MASK_LPSP |
> > -  EDP_PSR_DEBUG_MASK_MAX_SLEEP;
> > +  EDP_PSR_DEBUG_MASK_LPSP;
> > +
> > +   if (DISPLAY_VER(dev_priv) < 20)
> > +   mask |= EDP_PSR_DEBUG_MASK_MAX_SLEEP;
> >  
> > /*
> >  * No separate pipe reg write mask on hsw/bdw, so have to
> > unmask all
> 



Re: [Intel-gfx] [PATCH v3] drm/i915/lnl: Remove watchdog timers for PSR

2023-10-10 Thread Hogander, Jouni
On Tue, 2023-10-10 at 12:52 +0300, Mika Kahola wrote:
> Watchdorg timers for Lunarlake HW were removed for PSR/PSR2
> The patch removes the use of these timers from the driver code.
> 
> BSpec: 69895
> 
> v2: Reword commit message (Ville)
>     Drop HPD mask from LNL (Ville)
>     Revise masking logic (Jouni)
> v3: Revise commit message (Ville)
>     Revert HPD mask removal as irrelevant for this patch (Ville)
> 
> Signed-off-by: Mika Kahola 

Consider fixing typo above (watchdorg) before merging:

Reviewed-by: Jouni Högander 

> ---
>  drivers/gpu/drm/i915/display/intel_psr.c | 10 +++---
>  1 file changed, 7 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_psr.c
> b/drivers/gpu/drm/i915/display/intel_psr.c
> index bb65881e87cc..4f1f31fc9529 100644
> --- a/drivers/gpu/drm/i915/display/intel_psr.c
> +++ b/drivers/gpu/drm/i915/display/intel_psr.c
> @@ -676,7 +676,9 @@ static void hsw_activate_psr1(struct intel_dp
> *intel_dp)
>  
> val |=
> EDP_PSR_IDLE_FRAMES(psr_compute_idle_frames(intel_dp));
>  
> -   val |= EDP_PSR_MAX_SLEEP_TIME(max_sleep_time);
> +   if (DISPLAY_VER(dev_priv) < 20)
> +   val |= EDP_PSR_MAX_SLEEP_TIME(max_sleep_time);
> +
> if (IS_HASWELL(dev_priv))
> val |= EDP_PSR_MIN_LINK_ENTRY_TIME_8_LINES;
>  
> @@ -1400,8 +1402,10 @@ static void intel_psr_enable_source(struct
> intel_dp *intel_dp,
>  */
> mask = EDP_PSR_DEBUG_MASK_MEMUP |
>    EDP_PSR_DEBUG_MASK_HPD |
> -  EDP_PSR_DEBUG_MASK_LPSP |
> -  EDP_PSR_DEBUG_MASK_MAX_SLEEP;
> +  EDP_PSR_DEBUG_MASK_LPSP;
> +
> +   if (DISPLAY_VER(dev_priv) < 20)
> +   mask |= EDP_PSR_DEBUG_MASK_MAX_SLEEP;
>  
> /*
>  * No separate pipe reg write mask on hsw/bdw, so have to
> unmask all



[Intel-gfx] [PATCH v3] drm/i915/lnl: Remove watchdog timers for PSR

2023-10-10 Thread Mika Kahola
Watchdorg timers for Lunarlake HW were removed for PSR/PSR2
The patch removes the use of these timers from the driver code.

BSpec: 69895

v2: Reword commit message (Ville)
Drop HPD mask from LNL (Ville)
Revise masking logic (Jouni)
v3: Revise commit message (Ville)
Revert HPD mask removal as irrelevant for this patch (Ville)

Signed-off-by: Mika Kahola 
---
 drivers/gpu/drm/i915/display/intel_psr.c | 10 +++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c 
b/drivers/gpu/drm/i915/display/intel_psr.c
index bb65881e87cc..4f1f31fc9529 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -676,7 +676,9 @@ static void hsw_activate_psr1(struct intel_dp *intel_dp)
 
val |= EDP_PSR_IDLE_FRAMES(psr_compute_idle_frames(intel_dp));
 
-   val |= EDP_PSR_MAX_SLEEP_TIME(max_sleep_time);
+   if (DISPLAY_VER(dev_priv) < 20)
+   val |= EDP_PSR_MAX_SLEEP_TIME(max_sleep_time);
+
if (IS_HASWELL(dev_priv))
val |= EDP_PSR_MIN_LINK_ENTRY_TIME_8_LINES;
 
@@ -1400,8 +1402,10 @@ static void intel_psr_enable_source(struct intel_dp 
*intel_dp,
 */
mask = EDP_PSR_DEBUG_MASK_MEMUP |
   EDP_PSR_DEBUG_MASK_HPD |
-  EDP_PSR_DEBUG_MASK_LPSP |
-  EDP_PSR_DEBUG_MASK_MAX_SLEEP;
+  EDP_PSR_DEBUG_MASK_LPSP;
+
+   if (DISPLAY_VER(dev_priv) < 20)
+   mask |= EDP_PSR_DEBUG_MASK_MAX_SLEEP;
 
/*
 * No separate pipe reg write mask on hsw/bdw, so have to unmask all
-- 
2.34.1