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drm/i915/fbc: Extract intel_fbc_update() 

Pull the fbc enable vs. disable stuff into a small helper so
we don't have to have it pollute the higher level modeset code.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210702204603.596-3-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2021-07-02 23:45:57 +03:00
parent faca22fd50
commit 287d00d413
3 changed files with 26 additions and 7 deletions
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5
drivers/gpu/drm/i915/display/intel_display.c
View File

@ -10405,10 +10405,7 @@ static void intel_update_crtc(struct intel_atomic_state *state,
intel_encoders_update_pipe(state, crtc);
}
if (new_crtc_state->update_pipe && !new_crtc_state->enable_fbc)
intel_fbc_disable(crtc);
else
intel_fbc_enable(state, crtc);
intel_fbc_update(state, crtc);
/* Perform vblank evasion around commit operation */
intel_pipe_update_start(new_crtc_state);

26
drivers/gpu/drm/i915/display/intel_fbc.c
View File

@ -1236,8 +1236,8 @@ out:
* intel_fbc_enable multiple times for the same pipe without an
* intel_fbc_disable in the middle, as long as it is deactivated.
*/
void intel_fbc_enable(struct intel_atomic_state *state,
struct intel_crtc *crtc)
static void intel_fbc_enable(struct intel_atomic_state *state,
struct intel_crtc *crtc)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
struct intel_plane *plane = to_intel_plane(crtc->base.primary);
@ -1312,6 +1312,28 @@ void intel_fbc_disable(struct intel_crtc *crtc)
mutex_unlock(&fbc->lock);
}
/**
* intel_fbc_update: enable/disable FBC on the CRTC
* @state: atomic state
* @crtc: the CRTC
*
* This function checks if the given CRTC was chosen for FBC, then enables it if
* possible. Notice that it doesn't activate FBC. It is valid to call
* intel_fbc_update multiple times for the same pipe without an
* intel_fbc_disable in the middle.
*/
void intel_fbc_update(struct intel_atomic_state *state,
struct intel_crtc *crtc)
{
const struct intel_crtc_state *crtc_state =
intel_atomic_get_new_crtc_state(state, crtc);
if (crtc_state->update_pipe && !crtc_state->enable_fbc)
intel_fbc_disable(crtc);
else
intel_fbc_enable(state, crtc);
}
/**
* intel_fbc_global_disable - globally disable FBC
* @dev_priv: i915 device instance

2
drivers/gpu/drm/i915/display/intel_fbc.h
View File

@ -24,7 +24,7 @@ bool intel_fbc_pre_update(struct intel_atomic_state *state,
void intel_fbc_post_update(struct intel_atomic_state *state,
struct intel_crtc *crtc);
void intel_fbc_init(struct drm_i915_private *dev_priv);
void intel_fbc_enable(struct intel_atomic_state *state,
void intel_fbc_update(struct intel_atomic_state *state,
struct intel_crtc *crtc);
void intel_fbc_disable(struct intel_crtc *crtc);
void intel_fbc_global_disable(struct drm_i915_private *dev_priv);