From aac978718bb480fee1b4a577727c0c06e7ae65db Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Mon, 20 Jan 2020 19:47:26 +0200
Subject: [PATCH] drm/i915: Introduce intel_calc_active_pipes()
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Extract a small helper to compute the active pipes bitmask
based on the old bitmask + the crtcs in the atomic state.
I want to decouple the cdclk state entirely from the current
global state so I want to track the active pipes also inside
the (to be introduced) full cdclk state.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200120174728.21095-17-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 34 ++++++++++++--------
drivers/gpu/drm/i915/display/intel_display.h | 3 ++
2 files changed, 23 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 9f20c7dd116bc..c6d764b5dc446 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -14540,26 +14540,32 @@ static int hsw_mode_set_planes_workaround(struct intel_atomic_state *state)
return 0;
}
+u8 intel_calc_active_pipes(struct intel_atomic_state *state,
+ u8 active_pipes)
+{
+ const struct intel_crtc_state *crtc_state;
+ struct intel_crtc *crtc;
+ int i;
+
+ for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) {
+ if (crtc_state->hw.active)
+ active_pipes |= BIT(crtc->pipe);
+ else
+ active_pipes &= ~BIT(crtc->pipe);
+ }
+
+ return active_pipes;
+}
+
static int intel_modeset_checks(struct intel_atomic_state *state)
{
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
- struct intel_crtc_state *old_crtc_state, *new_crtc_state;
- struct intel_crtc *crtc;
- int ret, i;
+ int ret;
state->modeset = true;
- state->active_pipes = dev_priv->active_pipes;
+ state->active_pipes = intel_calc_active_pipes(state, dev_priv->active_pipes);
- for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
- new_crtc_state, i) {
- if (new_crtc_state->hw.active)
- state->active_pipes |= BIT(crtc->pipe);
- else
- state->active_pipes &= ~BIT(crtc->pipe);
-
- if (old_crtc_state->hw.active != new_crtc_state->hw.active)
- state->active_pipe_changes |= BIT(crtc->pipe);
- }
+ state->active_pipe_changes = state->active_pipes ^ dev_priv->active_pipes;
if (state->active_pipe_changes) {
ret = _intel_atomic_lock_global_state(state);
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 6805e29002ee5..75438a136d588 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -44,6 +44,7 @@ struct drm_modeset_acquire_ctx;
struct drm_plane;
struct drm_plane_state;
struct i915_ggtt_view;
+struct intel_atomic_state;
struct intel_crtc;
struct intel_crtc_state;
struct intel_digital_port;
@@ -469,6 +470,8 @@ enum phy_fia {
((connector) = to_intel_connector((__state)->base.connectors[__i].ptr), \
(new_connector_state) = to_intel_digital_connector_state((__state)->base.connectors[__i].new_state), 1))
+u8 intel_calc_active_pipes(struct intel_atomic_state *state,
+ u8 active_pipes);
void intel_link_compute_m_n(u16 bpp, int nlanes,
int pixel_clock, int link_clock,
struct intel_link_m_n *m_n,
--
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