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drm/i915: Introduce encoder->compute_config_late()

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Add an optional secondary encoder state compute hook. This gets
called after the normak .compute_config() has been called for
all the encoders in the state. Thus in the new hook we can rely
on all derived state populated by .compute_config() to be already
set up. Should be useful for MST and port sync master/slave
transcoder selection.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200214114126.13192-1-manasi.d.navare@intel.com
This commit is contained in:
Ville Syrjälä 2020-02-14 03:41:24 -08:00 committed by Uma Shankar
parent c014e07616
commit f28014244d
2 changed files with 42 additions and 0 deletions
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39
drivers/gpu/drm/i915/display/intel_display.c
View File

@ -13549,6 +13549,35 @@ encoder_retry:
return 0;
}
static int
intel_modeset_pipe_config_late(struct intel_crtc_state *crtc_state)
{
struct intel_atomic_state *state =
to_intel_atomic_state(crtc_state->uapi.state);
struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
struct drm_connector_state *conn_state;
struct drm_connector *connector;
int i;
for_each_new_connector_in_state(&state->base, connector,
conn_state, i) {
struct intel_encoder *encoder =
to_intel_encoder(conn_state->best_encoder);
int ret;
if (conn_state->crtc != &crtc->base ||
!encoder->compute_config_late)
continue;
ret = encoder->compute_config_late(encoder, crtc_state,
conn_state);
if (ret)
return ret;
}
return 0;
}
bool intel_fuzzy_clock_check(int clock1, int clock2)
{
int diff;
@ -14954,6 +14983,16 @@ static int intel_atomic_check(struct drm_device *dev,
ret = intel_modeset_pipe_config(new_crtc_state);
if (ret)
goto fail;
}
for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
new_crtc_state, i) {
if (!needs_modeset(new_crtc_state))
continue;
ret = intel_modeset_pipe_config_late(new_crtc_state);
if (ret)
goto fail;
intel_crtc_check_fastset(old_crtc_state, new_crtc_state);
}

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

@ -141,6 +141,9 @@ struct intel_encoder {
int (*compute_config)(struct intel_encoder *,
struct intel_crtc_state *,
struct drm_connector_state *);
int (*compute_config_late)(struct intel_encoder *,
struct intel_crtc_state *,
struct drm_connector_state *);
void (*update_prepare)(struct intel_atomic_state *,
struct intel_encoder *,
struct intel_crtc *);