Make sure we deactivate FBC at intel_fbc_init(), so we can remove the
call from intel_display.c. Currently we only have the "enabled"
software state, but later we'll have both "enabled" and "active", and
we'll add assertions to them, so just calling intel_fbc_disable() from
intel_modeset_init() won't work. It's better to make sure
intel_fbc_init() already puts the hardware in the expected state, so
we can put nice assertions in the other functions.
v2: Keep/improve the comment (Chris).
v3: Improve the commit message a little bit.
Signed-off-by: Paulo Zanoni <paulo.r.zan...@intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 3 ---
drivers/gpu/drm/i915/intel_fbc.c | 8 ++++++--
2 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 7b3cfb6..5a7f012 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -15030,9 +15030,6 @@ void intel_modeset_init(struct drm_device *dev)
i915_disable_vga(dev);
intel_setup_outputs(dev);
- /* Just in case the BIOS is doing something questionable. */
- intel_fbc_disable(dev_priv);
-
drm_modeset_lock_all(dev);
intel_modeset_setup_hw_state(dev);
drm_modeset_unlock_all(dev);
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
index 5a853c6..8abf70e 100644
--- a/drivers/gpu/drm/i915/intel_fbc.c
+++ b/drivers/gpu/drm/i915/intel_fbc.c
@@ -1038,9 +1038,9 @@ void intel_fbc_init(struct drm_i915_private *dev_priv)
enum pipe pipe;
mutex_init(&dev_priv->fbc.lock);
+ dev_priv->fbc.enabled = false;
if (!HAS_FBC(dev_priv)) {
- dev_priv->fbc.enabled = false;
dev_priv->fbc.no_fbc_reason = "unsupported by this chipset";
return;
}
@@ -1074,5 +1074,9 @@ void intel_fbc_init(struct drm_i915_private *dev_priv)
I915_WRITE(FBC_CONTROL, 500 << FBC_CTL_INTERVAL_SHIFT);
}
- dev_priv->fbc.enabled = dev_priv->fbc.fbc_enabled(dev_priv);
+ /* We still don't have any sort of hardware state readout for FBC, so
+ * disable it in case the BIOS enabled it to make sure software matches
+ * the hardware state. */
+ if (dev_priv->fbc.fbc_enabled(dev_priv))
+ dev_priv->fbc.disable_fbc(dev_priv);
}
--
2.6.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
