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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>
This commit is contained in:
Ville Syrjälä 2020-01-20 19:47:26 +02:00
parent fd1a9bba73
commit aac978718b
2 changed files with 23 additions and 14 deletions
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34
drivers/gpu/drm/i915/display/intel_display.c
View File

@ -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);

3
drivers/gpu/drm/i915/display/intel_display.h
View File

@ -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,