[Intel-gfx] [PATCH 1/3] drm/i915: Make ips_enabled a property depending on whether IPS is enabled.
Maarten Lankhorst
maarten.lankhorst at linux.intel.com
Fri Nov 17 15:37:54 UTC 2017
ips_enabled was used as a variable of whether IPS can be enabled or not,
but should be used to test whether IPS is actually enabled.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 75 ++++++++++++++++-------------------
drivers/gpu/drm/i915/intel_pipe_crc.c | 2 -
2 files changed, 35 insertions(+), 42 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 3b3dec1e6640..8283e80597bd 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4870,7 +4870,7 @@ void hsw_enable_ips(const struct intel_crtc_state *crtc_state)
struct drm_device *dev = crtc->base.dev;
struct drm_i915_private *dev_priv = to_i915(dev);
- if (!crtc->config->ips_enabled)
+ if (!crtc_state->ips_enabled)
return;
/*
@@ -4966,14 +4966,6 @@ intel_post_enable_primary(struct drm_crtc *crtc,
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int pipe = intel_crtc->pipe;
- /*
- * FIXME IPS should be fine as long as one plane is
- * enabled, but in practice it seems to have problems
- * when going from primary only to sprite only and vice
- * versa.
- */
- hsw_enable_ips(new_crtc_state);
-
/*
* Gen2 reports pipe underruns whenever all planes are disabled.
* So don't enable underrun reporting before at least some planes
@@ -4989,10 +4981,9 @@ intel_post_enable_primary(struct drm_crtc *crtc,
intel_check_pch_fifo_underruns(dev_priv);
}
-/* FIXME move all this to pre_plane_update() with proper state tracking */
+/* FIXME get rid of this and use pre_plane_update */
static void
-intel_pre_disable_primary(struct drm_crtc *crtc,
- const struct intel_crtc_state *old_crtc_state)
+intel_pre_disable_primary_noatomic(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
@@ -5001,32 +4992,12 @@ intel_pre_disable_primary(struct drm_crtc *crtc,
/*
* Gen2 reports pipe underruns whenever all planes are disabled.
- * So diasble underrun reporting before all the planes get disabled.
- * FIXME: Need to fix the logic to work when we turn off all planes
- * but leave the pipe running.
+ * So disable underrun reporting before all the planes get disabled.
*/
if (IS_GEN2(dev_priv))
intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false);
- /*
- * FIXME IPS should be fine as long as one plane is
- * enabled, but in practice it seems to have problems
- * when going from primary only to sprite only and vice
- * versa.
- */
- hsw_disable_ips(old_crtc_state);
-}
-
-/* FIXME get rid of this and use pre_plane_update */
-static void
-intel_pre_disable_primary_noatomic(struct drm_crtc *crtc)
-{
- struct drm_device *dev = crtc->dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- int pipe = intel_crtc->pipe;
-
- intel_pre_disable_primary(crtc, to_intel_crtc_state(crtc->state));
+ hsw_disable_ips(to_intel_crtc_state(crtc->state));
/*
* Vblank time updates from the shadow to live plane control register
@@ -5058,6 +5029,11 @@ static void intel_post_plane_update(struct intel_crtc_state *old_crtc_state)
if (pipe_config->update_wm_post && pipe_config->base.active)
intel_update_watermarks(crtc);
+ if (!old_crtc_state->ips_enabled ||
+ needs_modeset(&old_crtc_state->base) ||
+ pipe_config->update_pipe)
+ hsw_enable_ips(pipe_config);
+
if (old_pri_state) {
struct intel_plane_state *primary_state =
intel_atomic_get_new_plane_state(to_intel_atomic_state(old_state),
@@ -5088,6 +5064,9 @@ static void intel_pre_plane_update(struct intel_crtc_state *old_crtc_state,
struct intel_atomic_state *old_intel_state =
to_intel_atomic_state(old_state);
+ if (needs_modeset(&pipe_config->base) || !pipe_config->ips_enabled)
+ hsw_disable_ips(old_crtc_state);
+
if (old_pri_state) {
struct intel_plane_state *primary_state =
intel_atomic_get_new_plane_state(old_intel_state,
@@ -5096,10 +5075,13 @@ static void intel_pre_plane_update(struct intel_crtc_state *old_crtc_state,
to_intel_plane_state(old_pri_state);
intel_fbc_pre_update(crtc, pipe_config, primary_state);
-
- if (old_primary_state->base.visible &&
+ /*
+ * Gen2 reports pipe underruns whenever all planes are disabled.
+ * So disable underrun reporting before all the planes get disabled.
+ */
+ if (IS_GEN2(dev_priv) && old_primary_state->base.visible &&
(modeset || !primary_state->base.visible))
- intel_pre_disable_primary(&crtc->base, old_crtc_state);
+ intel_set_cpu_fifo_underrun_reporting(dev_priv, crtc->pipe, false);
}
/*
@@ -6231,12 +6213,25 @@ static int ironlake_fdi_compute_config(struct intel_crtc *intel_crtc,
static bool pipe_config_supports_ips(struct drm_i915_private *dev_priv,
struct intel_crtc_state *pipe_config)
{
+ u8 visible_planes;
+
if (pipe_config->ips_force_disable)
return false;
if (pipe_config->pipe_bpp > 24)
return false;
+ visible_planes = pipe_config->active_planes & ~BIT(PLANE_CURSOR);
+
+ /*
+ * FIXME IPS should be fine as long as one plane is
+ * enabled, but in practice it seems to have problems
+ * when going from primary only to sprite only and vice
+ * versa.
+ */
+ if (visible_planes != BIT(PLANE_PRIMARY))
+ return false;
+
/* HSW can handle pixel rate up to cdclk? */
if (IS_HASWELL(dev_priv))
return true;
@@ -6378,9 +6373,6 @@ static int intel_crtc_compute_config(struct intel_crtc *crtc,
intel_crtc_compute_pixel_rate(pipe_config);
- if (HAS_IPS(dev_priv))
- hsw_compute_ips_config(crtc, pipe_config);
-
if (pipe_config->has_pch_encoder)
return ironlake_fdi_compute_config(crtc, pipe_config);
@@ -10488,6 +10480,9 @@ static int intel_crtc_atomic_check(struct drm_crtc *crtc,
pipe_config);
}
+ if (HAS_IPS(dev_priv))
+ hsw_compute_ips_config(intel_crtc, pipe_config);
+
return ret;
}
diff --git a/drivers/gpu/drm/i915/intel_pipe_crc.c b/drivers/gpu/drm/i915/intel_pipe_crc.c
index 61641d479b93..1f5cd572a7ff 100644
--- a/drivers/gpu/drm/i915/intel_pipe_crc.c
+++ b/drivers/gpu/drm/i915/intel_pipe_crc.c
@@ -541,8 +541,6 @@ static void hsw_pipe_A_crc_wa(struct drm_i915_private *dev_priv,
* completely disable it.
*/
pipe_config->ips_force_disable = enable;
- if (pipe_config->ips_enabled == enable)
- pipe_config->base.connectors_changed = true;
}
if (IS_HASWELL(dev_priv)) {
--
2.15.0
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