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drm/i915/frontbuffer: Handle the dirtyfb cache flush inside intel_frontbuffer_flush()

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intel_bo_frontbuffer_flush_for_display() is a bit too low level
to be directly in the high level dirtyfb code. Move the calls
into intel_frontbuffer_flush().

There is a slight behavioural change here in that we now skip
the flush if the bo is not a current scanout buffer (front->bits
== 0). But that is fine as the flush will eventually happen via
the fb pinning code if/when the bo becomes a scanout buffer again.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251016185408.22735-6-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2025-10-16 21:54:03 +03:00
parent 5391ab2542
commit 6541748954
2 changed files with 3 additions and 2 deletions
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1
drivers/gpu/drm/i915/display/intel_fb.c
View File

@ -2193,7 +2193,6 @@ static int intel_user_framebuffer_dirty(struct drm_framebuffer *fb,
return ret;
flush:
intel_bo_frontbuffer_flush_for_display(front);
intel_frontbuffer_flush(front, ORIGIN_DIRTYFB);
return ret;
}

4
drivers/gpu/drm/i915/display/intel_frontbuffer.c
View File

@ -150,6 +150,9 @@ void __intel_fb_flush(struct intel_frontbuffer *front,
{
struct intel_display *display = to_intel_display(front->obj->dev);
if (origin == ORIGIN_DIRTYFB)
intel_bo_frontbuffer_flush_for_display(front);
if (origin == ORIGIN_CS) {
spin_lock(&display->fb_tracking.lock);
/* Filter out new bits since rendering started. */
@ -167,7 +170,6 @@ static void intel_frontbuffer_flush_work(struct work_struct *work)
struct intel_frontbuffer *front =
container_of(work, struct intel_frontbuffer, flush_work);
intel_bo_frontbuffer_flush_for_display(front);
intel_frontbuffer_flush(front, ORIGIN_DIRTYFB);
intel_frontbuffer_put(front);
}