* [Intel-gfx] [PATCH v3 16/22] drm/i915/rkl: Don't try to access transcoder D
[not found] <20200504225227.464666-17-matthew.d.roper>
@ 2020-05-06 21:14 ` Matt Roper
2020-05-07 7:57 ` Ville Syrjälä
0 siblings, 1 reply; 3+ messages in thread
From: Matt Roper @ 2020-05-06 21:14 UTC (permalink / raw)
To: intel-gfx
There are a couple places in our driver that loop over transcoders A..D
for gen11+; since RKL only has three pipes/transcoders, this can lead to
unclaimed register reads/writes. We should add checks for transcoder
existence where appropriate.
v2: Move one transcoder check that wound up in the wrong function after
conflict resolution. It belongs in bdw_get_trans_port_sync_config
rather than bxt_get_dsi_transcoder_state.
Cc: Aditya Swarup <aditya.swarup@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
---
drivers/gpu/drm/i915/display/intel_ddi.c | 3 +++
drivers/gpu/drm/i915/i915_irq.c | 6 ++++++
2 files changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 0ab03282c397..f93bc0661d00 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -4131,6 +4131,9 @@ static void bdw_get_trans_port_sync_config(struct intel_crtc_state *crtc_state)
enum intel_display_power_domain power_domain;
intel_wakeref_t trans_wakeref;
+ if (!HAS_TRANSCODER(dev_priv, cpu_transcoder))
+ continue;
+
power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder);
trans_wakeref = intel_display_power_get_if_enabled(dev_priv,
power_domain);
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 3c3fb9d9df62..297d4cacfb6a 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -2849,6 +2849,9 @@ static void gen11_display_irq_reset(struct drm_i915_private *dev_priv)
for (trans = TRANSCODER_A; trans <= TRANSCODER_D; trans++) {
enum intel_display_power_domain domain;
+ if (!HAS_TRANSCODER(dev_priv, trans))
+ continue;
+
domain = POWER_DOMAIN_TRANSCODER(trans);
if (!intel_display_power_is_enabled(dev_priv, domain))
continue;
@@ -3397,6 +3400,9 @@ static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv)
for (trans = TRANSCODER_A; trans <= TRANSCODER_D; trans++) {
enum intel_display_power_domain domain;
+ if (!HAS_TRANSCODER(dev_priv, trans))
+ continue;
+
domain = POWER_DOMAIN_TRANSCODER(trans);
if (!intel_display_power_is_enabled(dev_priv, domain))
continue;
--
2.24.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [Intel-gfx] [PATCH v3 16/22] drm/i915/rkl: Don't try to access transcoder D
2020-05-06 21:14 ` [Intel-gfx] [PATCH v3 16/22] drm/i915/rkl: Don't try to access transcoder D Matt Roper
@ 2020-05-07 7:57 ` Ville Syrjälä
0 siblings, 0 replies; 3+ messages in thread
From: Ville Syrjälä @ 2020-05-07 7:57 UTC (permalink / raw)
To: Matt Roper; +Cc: intel-gfx
On Wed, May 06, 2020 at 02:14:05PM -0700, Matt Roper wrote:
> There are a couple places in our driver that loop over transcoders A..D
> for gen11+; since RKL only has three pipes/transcoders, this can lead to
> unclaimed register reads/writes. We should add checks for transcoder
> existence where appropriate.
>
> v2: Move one transcoder check that wound up in the wrong function after
> conflict resolution. It belongs in bdw_get_trans_port_sync_config
> rather than bxt_get_dsi_transcoder_state.
>
> Cc: Aditya Swarup <aditya.swarup@intel.com>
> Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_ddi.c | 3 +++
> drivers/gpu/drm/i915/i915_irq.c | 6 ++++++
> 2 files changed, 9 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> index 0ab03282c397..f93bc0661d00 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -4131,6 +4131,9 @@ static void bdw_get_trans_port_sync_config(struct intel_crtc_state *crtc_state)
> enum intel_display_power_domain power_domain;
> intel_wakeref_t trans_wakeref;
>
> + if (!HAS_TRANSCODER(dev_priv, cpu_transcoder))
> + continue;
for_each_cpu_transcoder_masked() already handles this for us.
Perhaps should just convert the other places to use it as well.
> +
> power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder);
> trans_wakeref = intel_display_power_get_if_enabled(dev_priv,
> power_domain);
> diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
> index 3c3fb9d9df62..297d4cacfb6a 100644
> --- a/drivers/gpu/drm/i915/i915_irq.c
> +++ b/drivers/gpu/drm/i915/i915_irq.c
> @@ -2849,6 +2849,9 @@ static void gen11_display_irq_reset(struct drm_i915_private *dev_priv)
> for (trans = TRANSCODER_A; trans <= TRANSCODER_D; trans++) {
> enum intel_display_power_domain domain;
>
> + if (!HAS_TRANSCODER(dev_priv, trans))
> + continue;
> +
> domain = POWER_DOMAIN_TRANSCODER(trans);
> if (!intel_display_power_is_enabled(dev_priv, domain))
> continue;
> @@ -3397,6 +3400,9 @@ static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv)
> for (trans = TRANSCODER_A; trans <= TRANSCODER_D; trans++) {
> enum intel_display_power_domain domain;
>
> + if (!HAS_TRANSCODER(dev_priv, trans))
> + continue;
> +
> domain = POWER_DOMAIN_TRANSCODER(trans);
> if (!intel_display_power_is_enabled(dev_priv, domain))
> continue;
> --
> 2.24.1
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Ville Syrjälä
Intel
_______________________________________________
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https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Intel-gfx] [PATCH v2 16/22] drm/i915/rkl: Don't try to access transcoder D
@ 2020-05-04 22:52 Matt Roper
2020-05-06 21:21 ` [Intel-gfx] [PATCH v3 " Matt Roper
0 siblings, 1 reply; 3+ messages in thread
From: Matt Roper @ 2020-05-04 22:52 UTC (permalink / raw)
To: intel-gfx
There are a couple places in our driver that loop over transcoders A..D
for gen11+; since RKL only has three pipes/transcoders, this can lead to
unclaimed register reads/writes. We should add checks for transcoder
existence where appropriate.
Cc: Aditya Swarup <aditya.swarup@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 3 +++
drivers/gpu/drm/i915/i915_irq.c | 6 ++++++
2 files changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index fcfc3812ef28..2eeafda82188 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -11007,6 +11007,9 @@ static bool bxt_get_dsi_transcoder_state(struct intel_crtc *crtc,
else
cpu_transcoder = TRANSCODER_DSI_C;
+ if (!HAS_TRANSCODER(dev_priv, cpu_transcoder))
+ continue;
+
power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder);
drm_WARN_ON(dev, *power_domain_mask & BIT_ULL(power_domain));
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 622986759ec6..1381cb530c2f 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -2849,6 +2849,9 @@ static void gen11_display_irq_reset(struct drm_i915_private *dev_priv)
for (trans = TRANSCODER_A; trans <= TRANSCODER_D; trans++) {
enum intel_display_power_domain domain;
+ if (!HAS_TRANSCODER(dev_priv, trans))
+ continue;
+
domain = POWER_DOMAIN_TRANSCODER(trans);
if (!intel_display_power_is_enabled(dev_priv, domain))
continue;
@@ -3399,6 +3402,9 @@ static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv)
for (trans = TRANSCODER_A; trans <= TRANSCODER_D; trans++) {
enum intel_display_power_domain domain;
+ if (!HAS_TRANSCODER(dev_priv, trans))
+ continue;
+
domain = POWER_DOMAIN_TRANSCODER(trans);
if (!intel_display_power_is_enabled(dev_priv, domain))
continue;
--
2.24.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 3+ messages in thread* [Intel-gfx] [PATCH v3 16/22] drm/i915/rkl: Don't try to access transcoder D
2020-05-04 22:52 [Intel-gfx] [PATCH v2 " Matt Roper
@ 2020-05-06 21:21 ` Matt Roper
0 siblings, 0 replies; 3+ messages in thread
From: Matt Roper @ 2020-05-06 21:21 UTC (permalink / raw)
To: intel-gfx
There are a couple places in our driver that loop over transcoders A..D
for gen11+; since RKL only has three pipes/transcoders, this can lead to
unclaimed register reads/writes. We should add checks for transcoder
existence where appropriate.
v2: Move one transcoder check that wound up in the wrong function after
conflict resolution. It belongs in bdw_get_trans_port_sync_config
rather than bxt_get_dsi_transcoder_state.
Cc: Aditya Swarup <aditya.swarup@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
---
drivers/gpu/drm/i915/display/intel_ddi.c | 3 +++
drivers/gpu/drm/i915/i915_irq.c | 6 ++++++
2 files changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 0ab03282c397..f93bc0661d00 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -4131,6 +4131,9 @@ static void bdw_get_trans_port_sync_config(struct intel_crtc_state *crtc_state)
enum intel_display_power_domain power_domain;
intel_wakeref_t trans_wakeref;
+ if (!HAS_TRANSCODER(dev_priv, cpu_transcoder))
+ continue;
+
power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder);
trans_wakeref = intel_display_power_get_if_enabled(dev_priv,
power_domain);
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 3c3fb9d9df62..297d4cacfb6a 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -2849,6 +2849,9 @@ static void gen11_display_irq_reset(struct drm_i915_private *dev_priv)
for (trans = TRANSCODER_A; trans <= TRANSCODER_D; trans++) {
enum intel_display_power_domain domain;
+ if (!HAS_TRANSCODER(dev_priv, trans))
+ continue;
+
domain = POWER_DOMAIN_TRANSCODER(trans);
if (!intel_display_power_is_enabled(dev_priv, domain))
continue;
@@ -3397,6 +3400,9 @@ static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv)
for (trans = TRANSCODER_A; trans <= TRANSCODER_D; trans++) {
enum intel_display_power_domain domain;
+ if (!HAS_TRANSCODER(dev_priv, trans))
+ continue;
+
domain = POWER_DOMAIN_TRANSCODER(trans);
if (!intel_display_power_is_enabled(dev_priv, domain))
continue;
--
2.24.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 3+ messages in thread
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[not found] <20200504225227.464666-17-matthew.d.roper>
2020-05-06 21:14 ` [Intel-gfx] [PATCH v3 16/22] drm/i915/rkl: Don't try to access transcoder D Matt Roper
2020-05-07 7:57 ` Ville Syrjälä
2020-05-04 22:52 [Intel-gfx] [PATCH v2 " Matt Roper
2020-05-06 21:21 ` [Intel-gfx] [PATCH v3 " Matt Roper
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