* [PATCH 1/2] drm/i915: Use a crtc mask instead of a active refcount for dpll functions.
@ 2015-11-24 9:44 Maarten Lankhorst
2015-11-24 9:44 ` [PATCH 2/2] drm/i915: Perform dpll commit first Maarten Lankhorst
2015-11-26 14:36 ` [PATCH 1/2] drm/i915: Use a crtc mask instead of a active refcount for dpll functions Ander Conselvan De Oliveira
0 siblings, 2 replies; 5+ messages in thread
From: Maarten Lankhorst @ 2015-11-24 9:44 UTC (permalink / raw)
To: intel-gfx
This makes it easier to verify correct dpll setup with only a single crtc.
It it also useful to detect double dpll enable/disable.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/i915/i915_debugfs.c | 2 +-
drivers/gpu/drm/i915/i915_drv.h | 2 +-
drivers/gpu/drm/i915/intel_display.c | 68 ++++++++++++++++++++----------------
3 files changed, 40 insertions(+), 32 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index b86feeeafc45..37d4a7f3d112 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -3236,7 +3236,7 @@ static int i915_shared_dplls_info(struct seq_file *m, void *unused)
seq_printf(m, "DPLL%i: %s, id: %i\n", i, pll->name, pll->id);
seq_printf(m, " crtc_mask: 0x%08x, active: %d, on: %s\n",
- pll->config.crtc_mask, pll->active, yesno(pll->on));
+ pll->config.crtc_mask, hweight32(pll->active_mask), yesno(pll->on));
seq_printf(m, " tracked hardware state:\n");
seq_printf(m, " dpll: 0x%08x\n", pll->config.hw_state.dpll);
seq_printf(m, " dpll_md: 0x%08x\n",
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index f3ad72abeea7..e0763c3005e8 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -393,7 +393,7 @@ struct intel_shared_dpll_config {
struct intel_shared_dpll {
struct intel_shared_dpll_config config;
- int active; /* count of number of active CRTCs (i.e. DPMS on) */
+ unsigned active_mask; /* mask of active CRTCs (i.e. DPMS on) */
bool on; /* is the PLL actually active? Disabled during modeset */
const char *name;
/* should match the index in the dev_priv->shared_dplls array */
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 3317db3806a8..79bb22ef67dc 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1870,7 +1870,7 @@ static void intel_prepare_shared_dpll(struct intel_crtc *crtc)
return;
WARN_ON(!pll->config.crtc_mask);
- if (pll->active == 0) {
+ if (pll->active_mask == 0) {
DRM_DEBUG_DRIVER("setting up %s\n", pll->name);
WARN_ON(pll->on);
assert_shared_dpll_disabled(dev_priv, pll);
@@ -1892,6 +1892,7 @@ static void intel_enable_shared_dpll(struct intel_crtc *crtc)
struct drm_device *dev = crtc->base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
+ unsigned crtc_mask = 1 << drm_crtc_index(&crtc->base);
if (WARN_ON(pll == NULL))
return;
@@ -1899,11 +1900,16 @@ static void intel_enable_shared_dpll(struct intel_crtc *crtc)
if (WARN_ON(pll->config.crtc_mask == 0))
return;
+ if (WARN_ON(pll->active_mask & crtc_mask))
+ return;
+
DRM_DEBUG_KMS("enable %s (active %d, on? %d) for crtc %d\n",
- pll->name, pll->active, pll->on,
+ pll->name, hweight32(pll->active_mask), pll->on,
crtc->base.base.id);
- if (pll->active++) {
+ pll->active_mask |= crtc_mask;
+
+ if (pll->active_mask != crtc_mask) {
WARN_ON(!pll->on);
assert_shared_dpll_enabled(dev_priv, pll);
return;
@@ -1922,30 +1928,33 @@ static void intel_disable_shared_dpll(struct intel_crtc *crtc)
struct drm_device *dev = crtc->base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
+ unsigned crtc_mask = 1 << drm_crtc_index(&crtc->base);
/* PCH only available on ILK+ */
- if (INTEL_INFO(dev)->gen < 5)
+ if (INTEL_INFO(dev_priv)->gen < 5)
return;
if (pll == NULL)
return;
- if (WARN_ON(!(pll->config.crtc_mask & (1 << drm_crtc_index(&crtc->base)))))
+ if (WARN_ON(!(pll->config.crtc_mask & crtc_mask)))
return;
- DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
- pll->name, pll->active, pll->on,
+ if (WARN_ON(!(pll->active_mask & crtc_mask)))
+ return;
+
+ DRM_DEBUG_KMS("disable %s (active %x, on? %d) for crtc %d\n",
+ pll->name, pll->active_mask, pll->on,
crtc->base.base.id);
- if (WARN_ON(pll->active == 0)) {
+ pll->active_mask &= ~crtc_mask;
+ if (pll->active_mask) {
assert_shared_dpll_disabled(dev_priv, pll);
return;
}
assert_shared_dpll_enabled(dev_priv, pll);
WARN_ON(!pll->on);
- if (--pll->active)
- return;
DRM_DEBUG_KMS("disabling %s\n", pll->name);
pll->disable(dev_priv, pll);
@@ -4239,10 +4248,10 @@ struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc,
if (memcmp(&crtc_state->dpll_hw_state,
&shared_dpll[i].hw_state,
sizeof(crtc_state->dpll_hw_state)) == 0) {
- DRM_DEBUG_KMS("CRTC:%d sharing existing %s (crtc mask 0x%08x, ative %d)\n",
+ DRM_DEBUG_KMS("CRTC:%d sharing existing %s (crtc mask 0x%08x, active 0x%08x)\n",
crtc->base.base.id, pll->name,
shared_dpll[i].crtc_mask,
- pll->active);
+ pll->active_mask);
goto found;
}
}
@@ -12841,12 +12850,12 @@ check_shared_dpll_state(struct drm_device *dev)
active = pll->get_hw_state(dev_priv, pll, &dpll_hw_state);
- I915_STATE_WARN(pll->active > hweight32(pll->config.crtc_mask),
- "more active pll users than references: %i vs %i\n",
- pll->active, hweight32(pll->config.crtc_mask));
- I915_STATE_WARN(pll->active && !pll->on,
+ I915_STATE_WARN(pll->active_mask & ~pll->config.crtc_mask,
+ "more active pll users than references: %x vs %x\n",
+ pll->active_mask, pll->config.crtc_mask);
+ I915_STATE_WARN(pll->active_mask && !pll->on,
"pll in active use but not on in sw tracking\n");
- I915_STATE_WARN(pll->on && !pll->active,
+ I915_STATE_WARN(pll->on && !pll->active_mask,
"pll in on but not on in use in sw tracking\n");
I915_STATE_WARN(pll->on != active,
"pll on state mismatch (expected %i, found %i)\n",
@@ -12854,16 +12863,16 @@ check_shared_dpll_state(struct drm_device *dev)
for_each_intel_crtc(dev, crtc) {
if (crtc->base.state->enable && intel_crtc_to_shared_dpll(crtc) == pll)
- enabled_crtcs++;
+ enabled_crtcs |= 1 << drm_crtc_index(&crtc->base);
if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
- active_crtcs++;
+ active_crtcs |= 1 << drm_crtc_index(&crtc->base);
}
- I915_STATE_WARN(pll->active != active_crtcs,
- "pll active crtcs mismatch (expected %i, found %i)\n",
- pll->active, active_crtcs);
- I915_STATE_WARN(hweight32(pll->config.crtc_mask) != enabled_crtcs,
- "pll enabled crtcs mismatch (expected %i, found %i)\n",
- hweight32(pll->config.crtc_mask), enabled_crtcs);
+ I915_STATE_WARN(pll->active_mask != active_crtcs,
+ "pll active crtcs mismatch (expected %x, found %x)\n",
+ pll->active_mask, active_crtcs);
+ I915_STATE_WARN(pll->config.crtc_mask != enabled_crtcs,
+ "pll enabled crtcs mismatch (expected %x, found %x)\n",
+ pll->config.crtc_mask, enabled_crtcs);
I915_STATE_WARN(pll->on && memcmp(&pll->config.hw_state, &dpll_hw_state,
sizeof(dpll_hw_state)),
@@ -15502,14 +15511,13 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev)
pll->on = pll->get_hw_state(dev_priv, pll,
&pll->config.hw_state);
- pll->active = 0;
+ pll->active_mask = 0;
pll->config.crtc_mask = 0;
for_each_intel_crtc(dev, crtc) {
- if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll) {
- pll->active++;
+ if (crtc->active && intel_crtc_to_shared_dpll(crtc) == pll)
pll->config.crtc_mask |= 1 << crtc->pipe;
- }
}
+ pll->active_mask = pll->config.crtc_mask;
DRM_DEBUG_KMS("%s hw state readout: crtc_mask 0x%08x, on %i\n",
pll->name, pll->config.crtc_mask, pll->on);
@@ -15615,7 +15623,7 @@ intel_modeset_setup_hw_state(struct drm_device *dev)
for (i = 0; i < dev_priv->num_shared_dpll; i++) {
struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
- if (!pll->on || pll->active)
+ if (!pll->on || pll->active_mask)
continue;
DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll->name);
--
2.1.0
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 2/2] drm/i915: Perform dpll commit first.
2015-11-24 9:44 [PATCH 1/2] drm/i915: Use a crtc mask instead of a active refcount for dpll functions Maarten Lankhorst
@ 2015-11-24 9:44 ` Maarten Lankhorst
2015-11-26 14:41 ` Ander Conselvan De Oliveira
2015-11-26 14:36 ` [PATCH 1/2] drm/i915: Use a crtc mask instead of a active refcount for dpll functions Ander Conselvan De Oliveira
1 sibling, 1 reply; 5+ messages in thread
From: Maarten Lankhorst @ 2015-11-24 9:44 UTC (permalink / raw)
To: intel-gfx
Warn for the wrong mask in enable only. Disable will have the wrong mask
now because the new state is committed before disabling the old state.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 79bb22ef67dc..3eb51195da72 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1897,7 +1897,7 @@ static void intel_enable_shared_dpll(struct intel_crtc *crtc)
if (WARN_ON(pll == NULL))
return;
- if (WARN_ON(pll->config.crtc_mask == 0))
+ if (WARN_ON(!(pll->config.crtc_mask & (1 << drm_crtc_index(&crtc->base)))))
return;
if (WARN_ON(pll->active_mask & crtc_mask))
@@ -1937,9 +1937,6 @@ static void intel_disable_shared_dpll(struct intel_crtc *crtc)
if (pll == NULL)
return;
- if (WARN_ON(!(pll->config.crtc_mask & crtc_mask)))
- return;
-
if (WARN_ON(!(pll->active_mask & crtc_mask)))
return;
@@ -13382,7 +13379,8 @@ static int intel_atomic_commit(struct drm_device *dev,
}
drm_atomic_helper_swap_state(dev, state);
- dev_priv->wm.config = to_intel_atomic_state(state)->wm_config;
+ dev_priv->wm.config = intel_state->wm_config;
+ intel_shared_dpll_commit(state);
if (intel_state->modeset) {
memcpy(dev_priv->min_pixclk, intel_state->min_pixclk,
@@ -13415,8 +13413,6 @@ static int intel_atomic_commit(struct drm_device *dev,
intel_modeset_update_crtc_state(state);
if (intel_state->modeset) {
- intel_shared_dpll_commit(state);
-
drm_atomic_helper_update_legacy_modeset_state(state->dev, state);
modeset_update_crtc_power_domains(state);
}
--
2.1.0
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH 1/2] drm/i915: Use a crtc mask instead of a active refcount for dpll functions.
2015-11-24 9:44 [PATCH 1/2] drm/i915: Use a crtc mask instead of a active refcount for dpll functions Maarten Lankhorst
2015-11-24 9:44 ` [PATCH 2/2] drm/i915: Perform dpll commit first Maarten Lankhorst
@ 2015-11-26 14:36 ` Ander Conselvan De Oliveira
1 sibling, 0 replies; 5+ messages in thread
From: Ander Conselvan De Oliveira @ 2015-11-26 14:36 UTC (permalink / raw)
To: Maarten Lankhorst, intel-gfx
On Tue, 2015-11-24 at 10:44 +0100, Maarten Lankhorst wrote:
> This makes it easier to verify correct dpll setup with only a single crtc.
> It it also useful to detect double dpll enable/disable.
>
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> ---
> drivers/gpu/drm/i915/i915_debugfs.c | 2 +-
> drivers/gpu/drm/i915/i915_drv.h | 2 +-
> drivers/gpu/drm/i915/intel_display.c | 68 ++++++++++++++++++++---------------
> -
> 3 files changed, 40 insertions(+), 32 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
> b/drivers/gpu/drm/i915/i915_debugfs.c
> index b86feeeafc45..37d4a7f3d112 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -3236,7 +3236,7 @@ static int i915_shared_dplls_info(struct seq_file *m,
> void *unused)
>
> seq_printf(m, "DPLL%i: %s, id: %i\n", i, pll->name, pll->id);
> seq_printf(m, " crtc_mask: 0x%08x, active: %d, on: %s\n",
> - pll->config.crtc_mask, pll->active, yesno(pll
> ->on));
> + pll->config.crtc_mask, hweight32(pll
> ->active_mask), yesno(pll->on));
> seq_printf(m, " tracked hardware state:\n");
> seq_printf(m, " dpll: 0x%08x\n", pll
> ->config.hw_state.dpll);
> seq_printf(m, " dpll_md: 0x%08x\n",
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index f3ad72abeea7..e0763c3005e8 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -393,7 +393,7 @@ struct intel_shared_dpll_config {
> struct intel_shared_dpll {
> struct intel_shared_dpll_config config;
>
> - int active; /* count of number of active CRTCs (i.e. DPMS on) */
> + unsigned active_mask; /* mask of active CRTCs (i.e. DPMS on) */
> bool on; /* is the PLL actually active? Disabled during modeset */
> const char *name;
> /* should match the index in the dev_priv->shared_dplls array */
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index 3317db3806a8..79bb22ef67dc 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -1870,7 +1870,7 @@ static void intel_prepare_shared_dpll(struct intel_crtc
> *crtc)
> return;
>
> WARN_ON(!pll->config.crtc_mask);
> - if (pll->active == 0) {
> + if (pll->active_mask == 0) {
> DRM_DEBUG_DRIVER("setting up %s\n", pll->name);
> WARN_ON(pll->on);
> assert_shared_dpll_disabled(dev_priv, pll);
> @@ -1892,6 +1892,7 @@ static void intel_enable_shared_dpll(struct intel_crtc
> *crtc)
> struct drm_device *dev = crtc->base.dev;
> struct drm_i915_private *dev_priv = dev->dev_private;
> struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
> + unsigned crtc_mask = 1 << drm_crtc_index(&crtc->base);
>
> if (WARN_ON(pll == NULL))
> return;
> @@ -1899,11 +1900,16 @@ static void intel_enable_shared_dpll(struct intel_crtc
> *crtc)
> if (WARN_ON(pll->config.crtc_mask == 0))
> return;
>
> + if (WARN_ON(pll->active_mask & crtc_mask))
> + return;
> +
> DRM_DEBUG_KMS("enable %s (active %d, on? %d) for crtc %d\n",
> - pll->name, pll->active, pll->on,
> + pll->name, hweight32(pll->active_mask), pll->on,
Maybe just print active_mask, it is more informative anyway.
> crtc->base.base.id);
>
> - if (pll->active++) {
> + pll->active_mask |= crtc_mask;
> +
> + if (pll->active_mask != crtc_mask) {
> WARN_ON(!pll->on);
> assert_shared_dpll_enabled(dev_priv, pll);
> return;
> @@ -1922,30 +1928,33 @@ static void intel_disable_shared_dpll(struct
> intel_crtc *crtc)
> struct drm_device *dev = crtc->base.dev;
> struct drm_i915_private *dev_priv = dev->dev_private;
> struct intel_shared_dpll *pll = intel_crtc_to_shared_dpll(crtc);
> + unsigned crtc_mask = 1 << drm_crtc_index(&crtc->base);
>
> /* PCH only available on ILK+ */
> - if (INTEL_INFO(dev)->gen < 5)
> + if (INTEL_INFO(dev_priv)->gen < 5)
> return;
>
> if (pll == NULL)
> return;
>
> - if (WARN_ON(!(pll->config.crtc_mask & (1 << drm_crtc_index(&crtc
> ->base)))))
> + if (WARN_ON(!(pll->config.crtc_mask & crtc_mask)))
> return;
>
> - DRM_DEBUG_KMS("disable %s (active %d, on? %d) for crtc %d\n",
> - pll->name, pll->active, pll->on,
> + if (WARN_ON(!(pll->active_mask & crtc_mask)))
> + return;
> +
> + DRM_DEBUG_KMS("disable %s (active %x, on? %d) for crtc %d\n",
> + pll->name, pll->active_mask, pll->on,
> crtc->base.base.id);
>
> - if (WARN_ON(pll->active == 0)) {
> + pll->active_mask &= ~crtc_mask;
> + if (pll->active_mask) {
> assert_shared_dpll_disabled(dev_priv, pll);
> return;
> }
That call to assert_shared_dpll_disabled() looks wrong now. Just remove it, move
the assert enable after the DRM_DEBUG_KMS and add
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Ander
>
> assert_shared_dpll_enabled(dev_priv, pll);
> WARN_ON(!pll->on);
> - if (--pll->active)
> - return;
>
> DRM_DEBUG_KMS("disabling %s\n", pll->name);
> pll->disable(dev_priv, pll);
> @@ -4239,10 +4248,10 @@ struct intel_shared_dpll *intel_get_shared_dpll(struct
> intel_crtc *crtc,
> if (memcmp(&crtc_state->dpll_hw_state,
> &shared_dpll[i].hw_state,
> sizeof(crtc_state->dpll_hw_state)) == 0) {
> - DRM_DEBUG_KMS("CRTC:%d sharing existing %s (crtc mask
> 0x%08x, ative %d)\n",
> + DRM_DEBUG_KMS("CRTC:%d sharing existing %s (crtc mask
> 0x%08x, active 0x%08x)\n",
> crtc->base.base.id, pll->name,
> shared_dpll[i].crtc_mask,
> - pll->active);
> + pll->active_mask);
> goto found;
> }
> }
> @@ -12841,12 +12850,12 @@ check_shared_dpll_state(struct drm_device *dev)
>
> active = pll->get_hw_state(dev_priv, pll, &dpll_hw_state);
>
> - I915_STATE_WARN(pll->active > hweight32(pll
> ->config.crtc_mask),
> - "more active pll users than references: %i vs %i\n",
> - pll->active, hweight32(pll->config.crtc_mask));
> - I915_STATE_WARN(pll->active && !pll->on,
> + I915_STATE_WARN(pll->active_mask & ~pll->config.crtc_mask,
> + "more active pll users than references: %x vs %x\n",
> + pll->active_mask, pll->config.crtc_mask);
> + I915_STATE_WARN(pll->active_mask && !pll->on,
> "pll in active use but not on in sw tracking\n");
> - I915_STATE_WARN(pll->on && !pll->active,
> + I915_STATE_WARN(pll->on && !pll->active_mask,
> "pll in on but not on in use in sw tracking\n");
> I915_STATE_WARN(pll->on != active,
> "pll on state mismatch (expected %i, found %i)\n",
> @@ -12854,16 +12863,16 @@ check_shared_dpll_state(struct drm_device *dev)
>
> for_each_intel_crtc(dev, crtc) {
> if (crtc->base.state->enable &&
> intel_crtc_to_shared_dpll(crtc) == pll)
> - enabled_crtcs++;
> + enabled_crtcs |= 1 << drm_crtc_index(&crtc
> ->base);
> if (crtc->active && intel_crtc_to_shared_dpll(crtc)
> == pll)
> - active_crtcs++;
> + active_crtcs |= 1 << drm_crtc_index(&crtc
> ->base);
> }
> - I915_STATE_WARN(pll->active != active_crtcs,
> - "pll active crtcs mismatch (expected %i, found %i)\n",
> - pll->active, active_crtcs);
> - I915_STATE_WARN(hweight32(pll->config.crtc_mask) !=
> enabled_crtcs,
> - "pll enabled crtcs mismatch (expected %i, found %i)\n",
> - hweight32(pll->config.crtc_mask), enabled_crtcs);
> + I915_STATE_WARN(pll->active_mask != active_crtcs,
> + "pll active crtcs mismatch (expected %x, found %x)\n",
> + pll->active_mask, active_crtcs);
> + I915_STATE_WARN(pll->config.crtc_mask != enabled_crtcs,
> + "pll enabled crtcs mismatch (expected %x, found %x)\n",
> + pll->config.crtc_mask, enabled_crtcs);
>
> I915_STATE_WARN(pll->on && memcmp(&pll->config.hw_state,
> &dpll_hw_state,
> sizeof(dpll_hw_state)),
> @@ -15502,14 +15511,13 @@ static void intel_modeset_readout_hw_state(struct
> drm_device *dev)
>
> pll->on = pll->get_hw_state(dev_priv, pll,
> &pll->config.hw_state);
> - pll->active = 0;
> + pll->active_mask = 0;
> pll->config.crtc_mask = 0;
> for_each_intel_crtc(dev, crtc) {
> - if (crtc->active && intel_crtc_to_shared_dpll(crtc)
> == pll) {
> - pll->active++;
> + if (crtc->active && intel_crtc_to_shared_dpll(crtc)
> == pll)
> pll->config.crtc_mask |= 1 << crtc->pipe;
> - }
> }
> + pll->active_mask = pll->config.crtc_mask;
>
> DRM_DEBUG_KMS("%s hw state readout: crtc_mask 0x%08x, on
> %i\n",
> pll->name, pll->config.crtc_mask, pll->on);
> @@ -15615,7 +15623,7 @@ intel_modeset_setup_hw_state(struct drm_device *dev)
> for (i = 0; i < dev_priv->num_shared_dpll; i++) {
> struct intel_shared_dpll *pll = &dev_priv->shared_dplls[i];
>
> - if (!pll->on || pll->active)
> + if (!pll->on || pll->active_mask)
> continue;
>
> DRM_DEBUG_KMS("%s enabled but not in use, disabling\n", pll
> ->name);
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH 2/2] drm/i915: Perform dpll commit first.
2015-11-24 9:44 ` [PATCH 2/2] drm/i915: Perform dpll commit first Maarten Lankhorst
@ 2015-11-26 14:41 ` Ander Conselvan De Oliveira
2015-11-30 9:08 ` Maarten Lankhorst
0 siblings, 1 reply; 5+ messages in thread
From: Ander Conselvan De Oliveira @ 2015-11-26 14:41 UTC (permalink / raw)
To: Maarten Lankhorst, intel-gfx
On Tue, 2015-11-24 at 10:44 +0100, Maarten Lankhorst wrote:
> Warn for the wrong mask in enable only. Disable will have the wrong mask
> now because the new state is committed before disabling the old state.
Why?
Ander
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> ---
> drivers/gpu/drm/i915/intel_display.c | 10 +++-------
> 1 file changed, 3 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index 79bb22ef67dc..3eb51195da72 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -1897,7 +1897,7 @@ static void intel_enable_shared_dpll(struct intel_crtc
> *crtc)
> if (WARN_ON(pll == NULL))
> return;
>
> - if (WARN_ON(pll->config.crtc_mask == 0))
> + if (WARN_ON(!(pll->config.crtc_mask & (1 << drm_crtc_index(&crtc
> ->base)))))
> return;
>
> if (WARN_ON(pll->active_mask & crtc_mask))
> @@ -1937,9 +1937,6 @@ static void intel_disable_shared_dpll(struct intel_crtc
> *crtc)
> if (pll == NULL)
> return;
>
> - if (WARN_ON(!(pll->config.crtc_mask & crtc_mask)))
> - return;
> -
> if (WARN_ON(!(pll->active_mask & crtc_mask)))
> return;
>
> @@ -13382,7 +13379,8 @@ static int intel_atomic_commit(struct drm_device *dev,
> }
>
> drm_atomic_helper_swap_state(dev, state);
> - dev_priv->wm.config = to_intel_atomic_state(state)->wm_config;
> + dev_priv->wm.config = intel_state->wm_config;
> + intel_shared_dpll_commit(state);
>
> if (intel_state->modeset) {
> memcpy(dev_priv->min_pixclk, intel_state->min_pixclk,
> @@ -13415,8 +13413,6 @@ static int intel_atomic_commit(struct drm_device *dev,
> intel_modeset_update_crtc_state(state);
>
> if (intel_state->modeset) {
> - intel_shared_dpll_commit(state);
> -
> drm_atomic_helper_update_legacy_modeset_state(state->dev,
> state);
> modeset_update_crtc_power_domains(state);
> }
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH 2/2] drm/i915: Perform dpll commit first.
2015-11-26 14:41 ` Ander Conselvan De Oliveira
@ 2015-11-30 9:08 ` Maarten Lankhorst
0 siblings, 0 replies; 5+ messages in thread
From: Maarten Lankhorst @ 2015-11-30 9:08 UTC (permalink / raw)
To: Ander Conselvan De Oliveira, intel-gfx
Op 26-11-15 om 15:41 schreef Ander Conselvan De Oliveira:
> On Tue, 2015-11-24 at 10:44 +0100, Maarten Lankhorst wrote:
>> Warn for the wrong mask in enable only. Disable will have the wrong mask
>> now because the new state is committed before disabling the old state.
> Why?
>
> Ander
>
This is required for async commit. In that case the state has to be committed while
still holding the connection_mutex, but the modeset itself is run asynchronously.
This also means that any modeset has to wait for previous modesets to complete,
otherwise the pll state may be updated incorrectly.
~Maarten
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^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2015-11-30 9:08 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-11-24 9:44 [PATCH 1/2] drm/i915: Use a crtc mask instead of a active refcount for dpll functions Maarten Lankhorst
2015-11-24 9:44 ` [PATCH 2/2] drm/i915: Perform dpll commit first Maarten Lankhorst
2015-11-26 14:41 ` Ander Conselvan De Oliveira
2015-11-30 9:08 ` Maarten Lankhorst
2015-11-26 14:36 ` [PATCH 1/2] drm/i915: Use a crtc mask instead of a active refcount for dpll functions Ander Conselvan De Oliveira
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