[Intel-gfx] Fixes that failed to apply to v5.6-rc3

[Intel-gfx] Fixes that failed to apply to v5.6-rc3

[Jani Nikula]

Hi all -

The following commits have been marked as Cc: stable or fixing something
in v5.6-rc3 or earlier, but failed to cherry-pick to
drm-intel-fixes. Please see if they are worth backporting, and please do
so if they are.

Failed to cherry-pick:
837b63e60878 ("drm/i915: Program MBUS with rmw during initialization")
87e04f75928b ("drm/i915/tgl: Add Wa_22010178259:tgl")
df1a5bfc16f3 ("drm/i915/psr: Force PSR probe only after full initialization")

This one was fine to cherry-pick, but caused problematic (for me!)
conflicts in drm-tip rebuild:
42fb60de3129 ("drm/i915/gem: Don't leak non-persistent requests on changing engines")

BR,
Jani.

-- 
Jani Nikula, Intel Open Source Graphics Center
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] [PATCH backported to v5.6-rc3] drm/i915/psr: Force PSR probe only after full initialization

[José Roberto de Souza]

Commit 60c6a14b489b ("drm/i915/display: Force the state compute phase
once to enable PSR") was forcing the state compute too earlier
causing errors because not everything was initialized, so here
moving to the end of i915_driver_modeset_probe() when the display is
all initialized.

Also fixing the place where it disarm the force probe as during the
atomic check phase errors could happen like the ones due locking and
it would cause PSR to never be enabled if that happens.
Leaving the disarm to the atomic commit phase, intel_psr_enable() or
intel_psr_update() will be called even if the current state do not
allow PSR to be enabled.

v2: Check if intel_dp is null in intel_psr_force_mode_changed_set()
v3: Check intel_dp before get dev_priv
v4:
- renamed intel_psr_force_mode_changed_set() to
intel_psr_set_force_mode_changed()
- removed the set parameter from intel_psr_set_force_mode_changed()
- not calling intel_psr_set_force_mode_changed() from
intel_psr_enable/update(), directly setting it after the same checks
that intel_psr_set_force_mode_changed() does
- moved intel_psr_set_force_mode_changed() arm call to
i915_driver_modeset_probe() as it is a better for a PSR call, all the
functions calls happening between the old and the new function call
will cause issue

[backported to v5.6-rc3]

Fixes: 60c6a14b489b ("drm/i915/display: Force the state compute phase once to enable PSR")
Closes: https://gitlab.freedesktop.org/drm/intel/issues/1151
Tested-by: Ross Zwisler <zwisler@google.com>
Reported-by: Ross Zwisler <zwisler@google.com>
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Anshuman Gupta <anshuman.gupta@intel.com>
Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200221212635.11614-1-jose.souza@intel.com
---
 drivers/gpu/drm/i915/display/intel_psr.c | 25 ++++++++++++++++++++----
 drivers/gpu/drm/i915/display/intel_psr.h |  1 +
 drivers/gpu/drm/i915/i915_drv.c          |  3 +++
 drivers/gpu/drm/i915/i915_drv.h          |  2 +-
 4 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 89c9cf5f38d2..83025052c965 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -852,10 +852,12 @@ void intel_psr_enable(struct intel_dp *intel_dp,
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 
-	if (!crtc_state->has_psr)
+	if (!CAN_PSR(dev_priv) || dev_priv->psr.dp != intel_dp)
 		return;
 
-	if (WARN_ON(!CAN_PSR(dev_priv)))
+	dev_priv->psr.force_mode_changed = false;
+
+	if (!crtc_state->has_psr)
 		return;
 
 	WARN_ON(dev_priv->drrs.dp);
@@ -1009,6 +1011,8 @@ void intel_psr_update(struct intel_dp *intel_dp,
 	if (!CAN_PSR(dev_priv) || READ_ONCE(psr->dp) != intel_dp)
 		return;
 
+	dev_priv->psr.force_mode_changed = false;
+
 	mutex_lock(&dev_priv->psr.lock);
 
 	enable = crtc_state->has_psr && psr_global_enabled(psr->debug);
@@ -1534,7 +1538,7 @@ void intel_psr_atomic_check(struct drm_connector *connector,
 	struct drm_crtc_state *crtc_state;
 
 	if (!CAN_PSR(dev_priv) || !new_state->crtc ||
-	    dev_priv->psr.initially_probed)
+	    !dev_priv->psr.force_mode_changed)
 		return;
 
 	intel_connector = to_intel_connector(connector);
@@ -1545,5 +1549,18 @@ void intel_psr_atomic_check(struct drm_connector *connector,
 	crtc_state = drm_atomic_get_new_crtc_state(new_state->state,
 						   new_state->crtc);
 	crtc_state->mode_changed = true;
-	dev_priv->psr.initially_probed = true;
+}
+
+void intel_psr_set_force_mode_changed(struct intel_dp *intel_dp)
+{
+	struct drm_i915_private *dev_priv;
+
+	if (!intel_dp)
+		return;
+
+	dev_priv = dp_to_i915(intel_dp);
+	if (!CAN_PSR(dev_priv) || intel_dp != dev_priv->psr.dp)
+		return;
+
+	dev_priv->psr.force_mode_changed = true;
 }
diff --git a/drivers/gpu/drm/i915/display/intel_psr.h b/drivers/gpu/drm/i915/display/intel_psr.h
index c58a1d438808..274fc6bb6221 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.h
+++ b/drivers/gpu/drm/i915/display/intel_psr.h
@@ -40,5 +40,6 @@ bool intel_psr_enabled(struct intel_dp *intel_dp);
 void intel_psr_atomic_check(struct drm_connector *connector,
 			    struct drm_connector_state *old_state,
 			    struct drm_connector_state *new_state);
+void intel_psr_set_force_mode_changed(struct intel_dp *intel_dp);
 
 #endif /* __INTEL_PSR_H__ */
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index f7385abdd74b..8410330ce4f0 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -56,6 +56,7 @@
 #include "display/intel_hotplug.h"
 #include "display/intel_overlay.h"
 #include "display/intel_pipe_crc.h"
+#include "display/intel_psr.h"
 #include "display/intel_sprite.h"
 #include "display/intel_vga.h"
 
@@ -330,6 +331,8 @@ static int i915_driver_modeset_probe(struct drm_i915_private *i915)
 
 	intel_init_ipc(i915);
 
+	intel_psr_set_force_mode_changed(i915->psr.dp);
+
 	return 0;
 
 cleanup_gem:
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 077af22b8340..810e3ccd56ec 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -505,7 +505,7 @@ struct i915_psr {
 	bool dc3co_enabled;
 	u32 dc3co_exit_delay;
 	struct delayed_work idle_work;
-	bool initially_probed;
+	bool force_mode_changed;
 };
 
 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
-- 
2.25.1

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

[Intel-gfx] ✗ Fi.CI.BUILD: failure for drm/i915/psr: Force PSR probe only after full initialization (rev8)

[Patchwork]

== Series Details ==

Series: drm/i915/psr: Force PSR probe only after full initialization (rev8)
URL   : https://patchwork.freedesktop.org/series/73436/
State : failure

== Summary ==

Applying: drm/i915/psr: Force PSR probe only after full initialization
Using index info to reconstruct a base tree...
M	drivers/gpu/drm/i915/display/intel_psr.c
M	drivers/gpu/drm/i915/display/intel_psr.h
M	drivers/gpu/drm/i915/i915_drv.c
M	drivers/gpu/drm/i915/i915_drv.h
Falling back to patching base and 3-way merge...
Auto-merging drivers/gpu/drm/i915/i915_drv.h
CONFLICT (content): Merge conflict in drivers/gpu/drm/i915/i915_drv.h
Auto-merging drivers/gpu/drm/i915/i915_drv.c
Auto-merging drivers/gpu/drm/i915/display/intel_psr.c
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch' to see the failed patch
Patch failed at 0001 drm/i915/psr: Force PSR probe only after full initialization
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

Re: [Intel-gfx] Fixes that failed to apply to v5.6-rc3

[Jani Nikula]

On Thu, 27 Feb 2020, Jani Nikula <jani.nikula@intel.com> wrote:
> Hi all -
>
> The following commits have been marked as Cc: stable or fixing something
> in v5.6-rc3 or earlier, but failed to cherry-pick to
> drm-intel-fixes. Please see if they are worth backporting, and please do
> so if they are.
>
> Failed to cherry-pick:
> 837b63e60878 ("drm/i915: Program MBUS with rmw during initialization")
> 87e04f75928b ("drm/i915/tgl: Add Wa_22010178259:tgl")
> df1a5bfc16f3 ("drm/i915/psr: Force PSR probe only after full initialization")

Thanks for the backports of these, pushed to drm-intel-fixes.

BR,
Jani.

>
> This one was fine to cherry-pick, but caused problematic (for me!)
> conflicts in drm-tip rebuild:
> 42fb60de3129 ("drm/i915/gem: Don't leak non-persistent requests on changing engines")
>
> BR,
> Jani.

-- 
Jani Nikula, Intel Open Source Graphics Center
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

Re: [Intel-gfx] Fixes that failed to apply to v5.6-rc3

[Jani Nikula]

On Thu, 27 Feb 2020, Jani Nikula <jani.nikula@intel.com> wrote:
> Hi all -
>
> The following commits have been marked as Cc: stable or fixing something
> in v5.6-rc3 or earlier, but failed to cherry-pick to
> drm-intel-fixes. Please see if they are worth backporting, and please do
> so if they are.

New ones for -rc6:

003d8b9143a6 ("drm/i915/gem: Only call eb_lookup_vma once during execbuf ioctl")
520f8350364d ("drm/i915: properly sanity check batch_start_offset")
07bcfd1291de ("drm/i915/gen12: Disable preemption timeout")
fb899dd8ea9c ("drm/i915: Apply Wa_1406680159:icl,ehl as an engine workaround")

BR,
Jani.

> This one was fine to cherry-pick, but caused problematic (for me!)
> conflicts in drm-tip rebuild:
> 42fb60de3129 ("drm/i915/gem: Don't leak non-persistent requests on changing engines")
>
> BR,
> Jani.

-- 
Jani Nikula, Intel Open Source Graphics Center
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx